WO2017038049A1 - Roll crusher of cooler device - Google Patents

Roll crusher of cooler device Download PDF

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Publication number
WO2017038049A1
WO2017038049A1 PCT/JP2016/003831 JP2016003831W WO2017038049A1 WO 2017038049 A1 WO2017038049 A1 WO 2017038049A1 JP 2016003831 W JP2016003831 W JP 2016003831W WO 2017038049 A1 WO2017038049 A1 WO 2017038049A1
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WO
WIPO (PCT)
Prior art keywords
crushing
teeth
tooth
roll
ring
Prior art date
Application number
PCT/JP2016/003831
Other languages
French (fr)
Japanese (ja)
Inventor
耕一 出井
茂樹 ▲凡▼
恭司 山形
弘明 大澤
宏 板東
昭宏 吉永
喜久 山口
Original Assignee
川崎重工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=58188805&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017038049(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 川崎重工業株式会社 filed Critical 川崎重工業株式会社
Priority to MYPI2018700806A priority Critical patent/MY192199A/en
Priority to EP16841089.2A priority patent/EP3345680B2/en
Priority to JP2017537530A priority patent/JP6886403B2/en
Priority to DK16841089.2T priority patent/DK3345680T4/en
Publication of WO2017038049A1 publication Critical patent/WO2017038049A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/30—Shape or construction of rollers

Definitions

  • the present invention relates to a roll crusher of a cooler apparatus that cools a high-temperature granular conveyance object, for example, a granular cement clinker while conveying the granular conveyance object.
  • the cement plant is equipped with a cooler device that transports the high-temperature cement clinker generated through preheating, calcination, and firing in the transport direction while cooling, and for example, there is a cooling device as in Patent Document 1.
  • This cooling device conveys the clinker while cooling it in the cooling section, and discharges the clinker from the discharge end of the cooling section.
  • the cooling device includes four rolls extending in the direction perpendicular to the transport direction in the vicinity of the discharge end. Of the four rolls, the three rolls positioned on the discharge end side rotate in the normal direction (that is, rotate so as to be fed in the transport direction). Moreover, the 4th reverse rotation roll reversely rotates, and a block clinker is pinched
  • an object of the present invention is to provide a roll crusher for a cooler apparatus that can level out changes in roll load with time.
  • the roll crusher of the cooler device of the present invention is a roll crusher for crushing the granular conveyed product in a cooler device that cools while conveying the granular conveyed product, and is arranged in parallel in the conveying direction with a gap between each other, And a plurality of rolls each of which is rotated by a rotating unit around an axis line orthogonal to the transport direction and parallel to each other to crush the granular transported material, and at least one of the plurality of rolls has a load reduction
  • the load reducing roll has a plurality of crushing rings, and each of the plurality of crushing rings has a plurality of crushing teeth arranged at equal intervals in the circumferential direction on the outer peripheral surface, Among the plurality of crushing rings, at least one of the plurality of crushing teeth is shifted in the circumferential direction with respect to the plurality of crushing teeth of the adjacent crushing rings. It is what is.
  • a plurality of crushing teeth are arranged shifted in the circumferential direction with respect to at least one crushing ring. Therefore, when the roll is rotated, the timing at which the load becomes large can be shifted with respect to the load at the time of crushing which acts on the crushing rings arranged in a shifted manner and the other crushing rings. Thereby, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, it is possible to level the change with time of the load of the rotating unit.
  • the plurality of crushing teeth are arranged on an outer peripheral surface of the crushing ring at a predetermined pitch, and the plurality of crushing teeth of the crushing ring adjacent in the axial direction in which the axis extends.
  • the pitches may be arranged so as to deviate in the circumferential direction by 1 / n times the pitch (n: an integer of 2 or more).
  • the crushed teeth are aligned in the axial direction to form a dentition, and the dentition is twisted in one circumferential direction.
  • the granular conveyance thing of the lump which cannot be crushed but remained on the roll can be sent to an axial direction one side.
  • the lump granular conveyance thing which is sent by lump granular conveyance thing collides with the granular conveyance substance of another lump, and can grind
  • the granular conveyed product by feeding the granular conveyed product, the granular conveyed product remaining on the roll can be guided to a gap where the granular conveyed product can be well bitten. Thereby, even a granular conveyed product with a large particle size can be bitten well.
  • the load reduction roll has a shaft that extends in the axial direction and is rotated about the axis by the rotating unit, and the shaft extends in the axial direction and has an outer peripheral surface.
  • the plurality of crushing rings have one of the engagement piece and the engaged groove on the inner peripheral surface thereof, By engaging the engagement piece with the engaged groove, the shaft is sheathed so as not to be relatively displaced in the circumferential direction, and the plurality of crushing rings include a first crushing ring and a second crushing ring,
  • the first crushing ring has a first reference tooth that is one of the plurality of crushing teeth
  • the second crushing ring has a second reference tooth that is one of the plurality of crushing teeth.
  • the first reference tooth is located in the first crushing ring.
  • the second reference teeth are 360 / (n ⁇ N) in the circumferential direction with respect to the first reference teeth. (N: the number of teeth of the second crushing ring) may be shifted by a degree.
  • the crushing ring in which the crushing teeth are arranged with a shift of 360 ⁇ (n ⁇ 1) / (n ⁇ N) degrees with respect to the crushing teeth of the first crushing ring ( That is, it can be used as a crushing ring in which crushing teeth are displaced in one circumferential direction by (n ⁇ 1) / n times the pitch. Therefore, the type of mold for manufacturing the crushing ring can be made smaller than the type of crushing ring used, and the manufacturing cost can be reduced.
  • the plurality of crushing teeth may include a high tooth that is the crushing tooth having a first height and a low tooth that is the crushing tooth having a second height lower than the first height.
  • a plurality of the high teeth are arranged in the circumferential direction, and a plurality of the low teeth are arranged in the circumferential direction.
  • the high tooth formation site and the low tooth formation site may be arranged in a staggered manner.
  • the low teeth and the high teeth are alternately arranged in the axial direction between the rolls during crushing, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, the rotating unit.
  • the change with time of the load can be leveled.
  • the load reducing roll has a shaft that extends in an axial direction in which the axis extends and is rotated around the axis by the rotating unit, and the plurality of crushing teeth are predetermined. Are arranged on the outer peripheral surface of the crushing ring at equal intervals with a predetermined pitch, and shifted to one side in the circumferential direction by a half of the pitch with respect to the crushing teeth of the crushing ring adjacent in the axial direction.
  • the shaft has one of an engagement piece and an engagement groove extending in the axial direction and engaging with each other on an outer peripheral surface
  • the plurality of crushing rings include the engagement piece And the other of the engaged grooves on the inner peripheral surface, and by engaging the engaging piece with the engaged groove, the outer periphery of the shaft is mounted on the shaft so as not to be relatively displaceable in the circumferential direction. There is little on the outer peripheral surface of the ring.
  • the plurality of crushing rings include a first crushing ring and a second crushing ring.
  • the first crushing ring is one of the plurality of crushing teeth, and connects the center of the first crushing ring and the other one of the engaging piece and the engaged groove.
  • a first reference tooth positioned on a line, and the high tooth formation portion and the low tooth formation portion are alternately arranged in the circumferential direction on the outer peripheral surface of the first crushing ring with reference to the first reference tooth.
  • the second crushing ring is one of the plurality of crushing teeth and is arranged with a shift of 1 ⁇ 2 times the pitch in the circumferential direction with respect to the first reference tooth.
  • a second reference tooth The high-tooth formation site and the low-tooth formation site are alternately arranged in the circumferential direction with respect to a quasi-tooth, and the first crushing ring and the second crushing ring are rotationally symmetric about each axis. It may be formed to have properties.
  • the first crushing ring and the second crushing ring are externally mounted on the shaft in a normal posture, and the first crushing ring and the second crushing ring are externally mounted in the inverted posture at the adjacent positions, and further By repeating the above, it is possible to manufacture a load reducing roll in which the crushing teeth are displaced by 1/2 times the pitch and the high tooth region and the low tooth region are arranged in a staggered manner.
  • four types of crushing rings are used in manufacturing, the number of types of molds for manufacturing the crushing rings can be suppressed to two, and the manufacturing cost can be reduced.
  • the plurality of rolls have at least two or more adjacent load reduction rolls, and the adjacent load reduction rolls have different crushing amounts in the circumferential direction of the plurality of crushing teeth.
  • Each may have a ring.
  • the change with time of the load acting on the load reduction roll can be further leveled, and as a result, the change with time of the load of the rotating unit can be further leveled.
  • FIG. 3 It is the schematic which shows the structure of a cement plant provided with the cooler apparatus which concerns on this invention. It is a perspective view which shows the outline of a structure of the cooler apparatus of FIG. It is a perspective view which shows the roll crusher of the cooler apparatus of FIG. It is a front view which shows the 1st crushing ring of the 1st roll of FIG. It is a front view which shows a part of 1st crushing ring of the 1st roll of FIG. It is a front view which shows the 2nd crushing ring of the 1st roll of FIG. It is a front view which shows a part of 2nd crushing ring of the 1st roll of FIG. It is an expansion perspective view which expands and shows the 1st roll of FIG. 3 partially.
  • cooler device 1 according to an embodiment of the present invention will be described with reference to the drawings.
  • the concept of the direction used in the following description is used for convenience in description, and does not limit the direction of the configuration of the invention in that direction.
  • the cooler apparatus 1 demonstrated below is only one Embodiment of this invention. Therefore, the present invention is not limited to the embodiments, and additions, deletions, and changes can be made without departing from the spirit of the invention.
  • Cement is produced through a raw material grinding process for grinding cement raw materials containing limestone, clay, silica, iron, etc., a firing process for firing the ground cement raw material, and a finishing process as the final process.
  • Three processes are performed in a cement plant.
  • the firing step which is one of these three steps, the ground cement raw material is fired and cooled to produce a granular cement clinker.
  • the structure shown in FIG. 1 shows the calcination equipment 3 of a cement plant, and is the part which is performing the calcination process in cement manufacture.
  • the firing facility 3 preheats, calcines, and fires the cement raw material pulverized in the raw material pulverization step, and cools the granular cement clinker that has been baked to a high temperature.
  • the baking equipment 3 is provided with the preheater 4, and the preheater 4 is comprised by the several cyclone 5.
  • FIG. The cyclones 5 are arranged in a stepwise manner in the vertical direction. The exhaust in the cyclones 5 is blown up to the upper cyclone 5 (see the broken arrow in FIG. 1), and the input cement raw material is separated by a swirling flow. To the cyclone 5 (see the solid arrow in FIG. 1). The cyclone 5 located on the uppermost stage of the lowest stage is designed to feed cement raw material into the calcining furnace 6.
  • the calcining furnace 6 has a burner, and a reaction (that is, a calcining reaction) is performed to separate carbon dioxide gas in the cement raw material input by heat from the burner and heat of exhaust gas described later.
  • a reaction that is, a calcining reaction
  • the cement raw material whose calcining reaction is promoted in the calcining furnace 6 is guided to the lowermost cyclone 5 as will be described later, and the cement raw material in the cyclone 5 is further supplied to the rotary kiln 7. Yes.
  • This rotary kiln 7 is formed in a horizontally long cylindrical shape of several tens of meters or more.
  • the rotary kiln 7 is disposed so as to be inclined slightly downward from the inlet on the cyclone 5 side toward the outlet on the tip side. Therefore, by rotating the rotary kiln 7 around the axis, the cement raw material on the inlet side is conveyed to the outlet side.
  • a combustion device 8 is provided at the outlet of the rotary kiln 7. The combustion device 8 forms a high-temperature flame and fires the cement raw material.
  • the combustion device 8 injects high-temperature combustion gas toward the inlet side, and the combustion gas injected from the combustion device 8 flows in the rotary kiln 7 toward the inlet while firing the cement raw material.
  • Combustion gas is jetted from the lower end of the calcining furnace 6 as high-temperature exhaust gas and blows upward in the calcining furnace 6 (see the broken arrow in FIG. 1), and the cement raw material charged into the calcining furnace 6 is injected. Is blown upward.
  • the cement raw material is heated to about 900 ° C. by this exhaust and burner, that is, calcined.
  • the blown-up cement raw material flows into the lowermost cyclone 5 together with the exhaust gas, and the exhaust gas flowing in here and the cement raw material are separated.
  • the separated cement raw material is supplied to the rotary kiln 7, and the exhaust is blown up to the cyclone 5 on the upper stage.
  • the exhaust gas blown up is subjected to heat exchange with the cement raw material supplied thereto in each cyclone 5 to heat the cement raw material, and is separated from the cement raw material again.
  • the separated exhaust gas further rises to the cyclone 5 above it and repeats heat exchange. And it is discharged
  • cement raw material is charged from the vicinity of the uppermost cyclone 5, sufficiently preheated while exchanging heat with the exhaust, and lowered to the cyclone 5 higher than the lowermost stage, and the calcining furnace 6 is input.
  • the cement raw material is calcined with a burner and a high-temperature gas, and then the cement raw material is guided to the lowermost cyclone 5 where it is separated from the exhaust gas and supplied to the rotary kiln 7.
  • the supplied cement raw material is conveyed to the exit side while being fired in the rotary kiln 7.
  • cement clinker is shape
  • a cooler device 1 is provided at the outlet of the rotary kiln 7, and the cement clinker formed from the outlet of the rotary kiln 7 is discharged to the cooler device 1.
  • the cooler device 1 is configured to cool a cement clinker (high-temperature granular conveyed product) discharged from the rotary kiln 7 while conveying it in a predetermined conveying direction.
  • Great 11 is arranged.
  • the fixed inclined grate 11 is inclined downward from the outlet side of the rotary kiln 7 in the conveying direction, and the granular cement clinker discharged from the outlet of the rotary kiln 7 rolls on the fixed inclined grate 11 in the conveying direction. It has come to fall.
  • a plurality of cooling grid rows 13 are provided at the front end of the fixed inclined grate 11 in the conveyance direction, and cement clinker is deposited on the plurality of cooling grid rows 13 to form a clinker layer 14.
  • the cooling grid row 13 is a structure that extends in the transport direction, and is arranged in parallel in a lateral direction (hereinafter, also referred to as “orthogonal direction”) orthogonal to the transport direction so as to be adjacent to each other.
  • a clinker layer 14 (see a two-dot chain line in FIG. 2) is placed thereon so as to cover all of the rows 13.
  • the thus configured cooling grid row 13 has a cart (not shown) and is moved in one direction and the other in the transport direction.
  • the cooling grid row 13 is moved and the cooling grid row 13 is stopped.
  • a granular cement clinker is conveyed.
  • Specific transport methods include, for example, a method in which all the cooling grid rows 13 aligned in the orthogonal direction are moved forward and then the non-adjacent cooling grid rows 13 are retracted in a plurality of times, or a cross bar extending in the orthogonal direction.
  • the roll crusher 15 is a device for further finely crushing the cement clinker falling from the tip of the cooling grid row 13.
  • the roll crusher 15 includes four load reduction rolls (hereinafter simply referred to as “rolls”) 15a to 15d.
  • the four rolls 15a to 15d are cylindrical rod-like bodies extending in the orthogonal direction, and are supported by a bearing mechanism (not shown) so as to rotate around the respective rotation axes L1 to L4.
  • the four rolls 15a to 15d are arranged such that the rotation axes L1 to L4 are parallel to each other and arranged in the transport direction at a predetermined interval, and each of the four rolls 15a to 15d has a separate rotation.
  • a unit 17 is provided.
  • the rotation unit 17 is a so-called electric motor, and is configured to rotate the rolls 15a to 15d in a normal direction and a reverse direction in accordance with a command input thereto. Further, a control device 18 is connected to the rotation unit 17, and the control device 18 controls the movement of the rotation unit 17 to rotate the four rolls 15 a to 15 d to crush the massive cement clinker. It is like that. Hereinafter, the four rolls 15a to 15d will be described in detail.
  • the four rolls 15a to 15d are composed of two types of rolls. Specifically, the first and third from the downstream side in the transport direction are configured by the first type roll, and the second and fourth are configured by the second type roll.
  • the structure of the 1st roll 15a which is a 1st roll as a 1st type roll is demonstrated, referring FIG. 4 thru
  • the configurations of the third roll 15c, which is the third roll, and the fourth roll 15d, which is the fourth roll, are the same as the configurations of the first roll 15a and the second roll 15b. A description thereof will be omitted.
  • the first roll 15 a has a first shaft 21 and a plurality of crushing rings 22 and 23.
  • the first shaft 21 is a substantially columnar member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L1 by a bearing mechanism (not shown).
  • One end of the first shaft 21 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L1 by the rotation unit 17.
  • Two keys 21 a are formed on the outer peripheral surface of the first shaft 21.
  • the two keys 21a which are engaging pieces, protrude radially outward and extend from one end of the first shaft 21 to the other end, and are arranged 180 degrees apart in the circumferential direction.
  • a plurality of two types of crushing rings 22 and 23 are alternately mounted on the outer peripheral surface of the first shaft 21 having such a shape. Below, the structure of the 1st crushing ring 22 and the 2nd crushing ring 23 which are two types of crushing rings 22 and 23 is demonstrated.
  • the first crushing ring 22 shown in FIG. 4 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 22a on the inner peripheral surface thereof.
  • the key groove 22a which is an engaged groove, has the same shape as the key 21a of the first shaft 21, and extends from one end of the first crushing ring 22 to the other end.
  • the key groove 22a is arranged 180 degrees apart in the circumferential direction, and the key 21a is fitted into the key groove 22a when the first crushing ring 22 is externally mounted on the first shaft 21.
  • the first crushing ring 22 is packaged so as not to rotate relative to the first shaft 21.
  • a plurality of crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22.
  • 18 crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22, and the 18 crushing teeth 24 are arranged at an equal pitch p1. Each crushing tooth 24 protrudes radially outward and extends from one end to the other end of the first crushing ring 22 in the orthogonal direction. Further, the plurality of crushing teeth 24 include crushing teeth 24 having different tooth depths. In this embodiment, three of the six high teeth 24a, the four middle teeth 24b, and the eight low teeth 24c. Different types of teeth are included.
  • the high tooth 24a is the tooth having the largest tooth depth among the three types of teeth. Of the six high teeth 24a, one high tooth 24a is located on the virtual central plane PL11 including the central axis (that is, the rotation axis L1) of the first crushing ring 22 and the center of one key groove 22a. .
  • This high tooth 24a is a first reference tooth, and on the outer peripheral surface of the first crushing ring 22, two high teeth 24a are arranged on one side in the circumferential direction with reference to the first reference tooth 24d in FIG. Next, the middle teeth 24b are arranged.
  • the middle teeth 24b are teeth lower than the high teeth 24a and higher than the low teeth 24c, that is, have a tooth depth intermediate between those of the high teeth 24a and the low teeth 24c.
  • the middle teeth 24b are arranged again, and then the high teeth 24a are arranged.
  • the high teeth 24a are located on the virtual center plane PL11. Following the high teeth 24a, two high teeth 24a are arranged side by side at an equal pitch p1 in one circumferential direction. Subsequently, the middle teeth 24b, the four low teeth 24c, and the middle teeth 24b are arranged at an equal pitch p1 in this order.
  • first crushing ring 22 configured in this way, three high teeth 24a are arranged side by side on the outer peripheral surface, and the three high teeth 24a arranged side by side are first high tooth forming portions 25 (for example, described later).
  • the shaded portion of the first roll 15a in FIG. 8 is configured.
  • four low teeth 24c are arranged side by side in one and the other in the circumferential direction, and the four low teeth 24c arranged side by side form the first low-tooth formation.
  • Each part 26 is constituted.
  • part 26 are alternately arrange
  • the first crushing ring 22 having such a shape can be externally mounted on the first shaft 21 in a normal posture in which the high teeth 24a adjacent to the first reference teeth 24d are located on one side in the circumferential direction of the first reference teeth 24d. it can.
  • the first shaft 21 can be externally mounted in an inverted posture in which the one side and the other side are inverted. In the reverse posture, as shown in FIG. 5, the circumferential position of the first reference tooth 24d does not change, but the two high teeth 24a are arranged so as to be arranged on the other circumferential side of the first reference tooth 24d.
  • the first crushing ring 22 is reversed left and right with respect to the virtual central plane PL11, so that the first high tooth forming portion 25 and the first low tooth forming portion 26 are defined on the outer peripheral surface with reference to the first reference tooth 24d. They can be arranged alternately in the other circumferential direction in that order.
  • the second crushing ring 23 shown in FIG. 6 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 22. That is, the second crushing ring 23 has two key grooves 23a that are engaged grooves on its inner peripheral surface, and a plurality of crushing teeth 27 on its outer peripheral surface. Like the plurality of crushing teeth 24 of the first crushing ring 22, the plurality of crushing teeth 27 include crushing teeth 27 with different tooth depths. In the present embodiment, the six high teeth 27a, Three different types of teeth are included, a tooth 27b and eight low teeth 27c.
  • Each of the plurality of crushing teeth 27 is also arranged in the same arrangement as the plurality of crushing teeth 24 of the first crushing ring 22, and has two heights in the circumferential direction from the second reference tooth 27 e corresponding to the first reference tooth 24 d.
  • Teeth 27a, medium teeth 27b, four low teeth 27c, medium teeth 27b, three high teeth 27a, medium teeth 27b, four low teeth 27c, and medium teeth 27b are arranged on the outer peripheral surface of the second crushing ring 23 in this order. It is out.
  • the second crushing ring 23 has a second reference on the virtual central plane PL12 including the central axis of the second crushing ring 23 and the center of the key groove 23a.
  • a tooth bottom 27d formed between the teeth 27e and the middle teeth 27b is located, and the second reference teeth 27e are arranged with a deviation of 1/2 the pitch p1 with respect to the virtual center plane. That is, the entire plurality of crushing teeth 27 are arranged with a shift of 1 ⁇ 2 times the pitch p1 around the rotation axis L1 with respect to the plurality of crushing teeth 24 of the first crushing ring 22.
  • the 2nd high tooth formation part 28 is constituted by the 3 high teeth 27a arranged side by side like the 1st crushing ring 22, and 4 pieces arranged side by side
  • a second low tooth formation site 29 is configured by the low teeth 27c. That is, the second high-tooth forming portion 28 and the second low-tooth forming portion 29 are alternately arranged on the outer peripheral surface of the second crushing ring 23 on one side in the circumferential direction with respect to the second reference tooth 27e. ing.
  • the second crushing ring 23 having such a shape is externally attached to the first shaft 21 in a normal posture in which the high teeth 27a adjacent to the second reference teeth 27e are located on one side in the circumferential direction with respect to the second reference teeth 27e. be able to.
  • the second crushing ring 23 has rotational symmetry about the central axis and the key groove 23a is arranged at a position shifted by 180 degrees as in the first crushing ring 22, the virtual central plane PL12
  • the first crushing ring 23 can be externally mounted on the first shaft 21 in an inverted posture in which one side and the other side are inverted.
  • the second reference teeth 27e are arranged at a position inverted with respect to the virtual central plane PL12, and the two high teeth 27a are arranged on the other circumferential side of the second reference teeth 27e.
  • the second high tooth formation site 28 and the second low tooth formation site 29 are in that order on the outer peripheral surface with the second reference tooth 27e as a reference. Can be arranged alternately in the other circumferential direction.
  • Each of the two types of crushing rings 22 and 23 configured in this manner is externally mounted on the first shaft 21 while changing the normal posture and the reverse posture. That is, the first shaft 21 is externally provided with a plurality of crushing rings 22 and 23 as shown in FIG.
  • the first crushing ring 22 is externally mounted in a normal posture on the most other end side of the first shaft 21, and the second crushing ring 23 is externally mounted in a normal posture so as to be adjacent thereto.
  • the second crushing ring 23T in the normal posture is arranged such that the second reference teeth 27e are shifted by a half pitch p1 / 2 with respect to the first reference teeth 24d of the first crushing ring 22T in the normal posture.
  • the second crushing ring 23 ⁇ / b> T is externally mounted on the first shaft 21 in a state where the whole of the plurality of crushing teeth 27 is shifted by a half pitch p1 / 2 with respect to the whole of the plurality of crushing teeth 24 of the first crushing ring 22.
  • the first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on one side in the circumferential direction from the virtual central planes PL11 and PL12. Yes.
  • first crushing ring 22 is mounted on the first shaft 21 adjacent to the two crushing rings 22T and 23T in an inverted posture
  • second crushing ring 23 is mounted on the first shaft 21 in an inverted posture so as to be adjacent thereto.
  • first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on the other side in the circumferential direction from the virtual central planes PL11 and PL12. Has been.
  • the tooth formation part 28 is located on the opposite side to the virtual central planes PL11 and PL12, respectively.
  • the first shaft 21 is covered with two crushing rings 22T and 23T in the normal posture adjacent to the two crushing rings 22R and 23R in the reverse posture in that order, and next to the two crushing rings 22T and 23T in the reverse posture.
  • the crushing rings 22R and 23R are packaged in that order.
  • the 1st roll 15a is comprised by armoring the some crushing rings 22T, 22R, 23T, and 23R on the 1st shaft 21. As shown in FIG.
  • a high tooth forming portion 30H is formed by the adjacent first high tooth forming portion 25 and the second high tooth forming portion 28, and the adjacent first low tooth
  • a low tooth formation site 30 ⁇ / b> L is formed by the formation site 26 and the second low tooth formation site 29.
  • the high tooth formation site 30H and the low tooth formation site 30L are alternately arranged on one side and the other side of the virtual central planes PL11 and PL12 in the orthogonal direction. Thereby, the high tooth formation part 30H and the low tooth formation part 30L are arrange
  • the second roll 15b is disposed on the first roll 15a so as to be adjacent to the transport direction with a predetermined interval.
  • the second roll 15 b has a second shaft 31 and a plurality of crushing rings 32 and 33.
  • the second shaft 31 has the same shape as the first shaft 21. That is, the second shaft 31 is a cylindrical member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L2 by a bearing mechanism (not shown). One end of the second shaft 31 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L2 by the rotation unit 17.
  • two keys 31 a (engagement pieces) arranged 180 degrees apart in the circumferential direction are formed on the outer peripheral surface of the second shaft 31.
  • a plurality of two types of crushing rings 32 and 33 are externally mounted on the outer peripheral surface of the second shaft 31 having such a shape.
  • the first crushing ring 32 shown in FIG. 9 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 32a on the inner peripheral surface thereof.
  • the key groove 32a which is the engaged groove, has the same shape as the key 31a of the second shaft 31, and extends from one end of the first crushing ring 32 to the other end.
  • the key grooves 32 a are arranged 180 degrees apart in the circumferential direction, and the keys 31 a are fitted into the key grooves 32 a when the first crushing ring 32 is mounted on the second shaft 31. Thereby, the first crushing ring 32 is packaged so as not to rotate relative to the second shaft 31.
  • a plurality of crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32.
  • 18 crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32, and the 18 crushing teeth 34 are arranged at an equal pitch p2.
  • Each crushing tooth 34 protrudes radially outward and extends from one end of the first crushing ring 32 to the other end.
  • each crushing tooth 34 is formed on the outer peripheral surface of the first crushing ring 32 so that the teeth are the same.
  • the first reference tooth 34a which is one of the plurality of crushing teeth 34, connects the center axis of the first crushing ring 32 (that is, the rotation axis L2) and the center of one key groove 32a.
  • the other crushing teeth 34 are arranged on the outer peripheral surface of the first crushing ring 32 side by side at an equal pitch p2 on the basis of the first reference teeth 34a.
  • the 1st crushing ring 32 comprised in this way is formed so that it may have rotational symmetry centering on the central axis.
  • the first crushing ring 32 is externally mounted on the second shaft 31 such that the first reference teeth 34 a are positioned on the radially outward extension line of one key 31 a of the second shaft 31.
  • the second crushing ring 33 shown in FIG. 10 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 32. That is, the second crushing ring 33 has two key grooves 33a (engaged grooves) on the inner peripheral surface thereof and a plurality of crushing teeth 35 on the outer peripheral surface thereof.
  • the plurality of crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33 so as to have the same tooth depth as the first crushing ring 32.
  • 18 crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33, and the 18 crushing teeth 35 are arranged at an equal pitch p2.
  • the second crushing ring 33 has a second reference tooth 35a corresponding to the first reference tooth 34a, which is one of the plurality of crushing teeth 35, and the second reference tooth 35a is a second tooth.
  • the crushing ring 33 is arranged so as to be shifted by 1/3 times the pitch p2 with respect to the virtual central plane PL22 including the center axis of the crushing ring 33 (that is, the rotation axis L2) and the center of the one key groove 33a.
  • the entire plurality of teeth of the second crushing ring 33 are arranged with a shift of 1/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32.
  • the second crushing ring 33 having such a shape can be externally mounted on the second shaft 31 in a normal posture in which the second reference teeth 35a are positioned on one side in the circumferential direction with respect to the virtual center plane PL22.
  • the second crushing ring 33 has rotational symmetry about its central axis and the key groove 33a is disposed at a position shifted by 180 degrees, the second crushing ring 33 is located with respect to the virtual central plane PL22.
  • the second shaft 31 can be externally mounted in an inverted posture in which one side and the other side of 33 are inverted.
  • the second reference teeth 35a can be disposed at a position inverted with respect to the virtual central plane PL22, and the second reference teeth 35a are arranged on the other side in the circumferential direction with respect to the virtual central plane PL22. Are shifted by 1/3 of the pitch p2.
  • the entire plurality of crushing teeth 35 of the second crushing ring 33 are arranged with a shift of 2/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32.
  • the plurality of crushing teeth 35 have a pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32. It can be set as the 2nd crushing ring 33 which has shifted
  • the crushing teeth 34 and 35 formed on the crushing rings 32 and 33 are arranged so as to be shifted by 1/3 times the pitch p2.
  • the second shaft 31 is packaged. That is, the second shaft 31 is externally provided with a plurality of crushing rings 32 and 33 as shown in FIG.
  • a first crushing ring 32 is externally provided on the most other end side of the second shaft 31, and the first reference teeth 34 a are located radially outward of the key 31 a of the second shaft 31.
  • a second crushing ring 33 is externally mounted on the second shaft 31 in a normal posture so as to be adjacent to the first crushing ring 32.
  • the second crushing ring 33T in the normal posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 ⁇ / b> T is externally mounted on the second shaft 31 in a state in which the entire crushing teeth 35 are shifted from the whole crushing teeth 34 of the first crushing ring 32 by 1/3 times the pitch p ⁇ b> 2. Further, next to the second crushing ring 33T in the normal posture, the second crushing ring 33 is externally mounted on the second shaft 31 in a reversed posture.
  • the second crushing ring 33R in the inverted posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the other circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 ⁇ / b> R is externally mounted on the second shaft 31 in a state where the whole of the plurality of crushing teeth 35 is shifted by 2/3 times the pitch p ⁇ b> 2 with respect to the entire crushing teeth 34 of the first crushing ring 32. Further, the first crushing ring 32, the normal crushing second crushing ring 33T, and the inverted crushing second crushing ring 33R are repeatedly packaged in that order next to the inverted crushing second crushing ring 33R. Thus, the 2nd roll 15b is comprised by mounting
  • a tooth row 36 is formed on the outer peripheral surface of the second roll 15b thus configured by crushing teeth 34, 35 adjacent to each other in the axial direction, that is, the orthogonal direction. Note that, since the adjacent crushing teeth 34 are arranged with a shift of 1/3 times the pitch p2, the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface of the second roll 15b. (For example, see the shaded portion of the second roll 15b in FIGS. 3 and 12 as one tooth row 36).
  • the first roll 15a disposed adjacent to the second roll 15b is also adjacent to the axial direction, that is, the orthogonal direction, and is disposed with a half pitch p1 / 2 shifted to the other circumferential direction.
  • a tooth row is formed by this, and this tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a.
  • the third roll 15c is configured in the same manner as the first roll 15a
  • the fourth roll 15d is configured in the same manner as the second roll 15b.
  • the four rolls 15a to 15d configured in this way are arranged at a predetermined interval in the transport direction as described above, and gaps S1 to S3 are vacant between adjacent rolls 15a to 15d.
  • the widths of the gaps S1 to S3 (that is, the length in the transport direction) are such that the rolls 15a to 15d rotate and the crushing teeth 24, 27, 34, and 35 are formed on the outer peripheral surfaces of the rolls 15a to 15d. It changes according to the position of each crushing tooth 24,27,34,35. That is, the gaps S1 to S3 have the smallest width (minimum width) when the high teeth 24a and 27a and the crushing teeth 34 and 35 face each other, and the gaps S1 to S3 have the largest width when the tooth bottoms face each other ( Maximum width).
  • the minimum width of the gaps S1 to S3 is set according to the allowable amount of load acting on the rolls 15a to 15d during crushing, and the maximum width of the gaps S1 to S3 is the allowable particle size of the cement clinker. It is set according to. Further, according to these minimum width and maximum width, the interval between the adjacent rolls 15a to 15d and the tooth depth of each crushing tooth 24, 27, 34, 35 are set.
  • the four rolls 15a to 15d configured as described above are rotationally driven by the respective rotation units 17.
  • a normal mode and a high crushing mode can be selected.
  • the first roll 15a rotates in the other circumferential direction
  • the second to fourth rolls 15b to 15d rotate in one circumferential direction.
  • the high crushing mode the first roll 15a and the third roll 15c rotate.
  • the second and fourth rolls 15b and 15d rotate in the other circumferential direction
  • the second and fourth rolls 15b and 15d rotate in one circumferential direction.
  • the four rolls 15a to 15d rotating in this way receive the cement clinker falling from the tip of the cooler device 1, and crush the received cement clinker to a particle size equal to or smaller than an allowable particle size.
  • the second to fourth rolls 15b to 15d are configured to send the falling cement clinker toward the first roll 15a.
  • the cement clinker having a particle size equal to or smaller than the allowable particle size is dropped from the gaps S2 and S3, and a large lump of cement clinker having a larger particle size is directed to the first roll 15a.
  • Sent. The first roll 15a rotates together with the second roll 15b so that the cement clinker on the first and second rolls 15a and 15b is caught between them (that is, the gap S1), and the cement clinker is interposed between them. It is designed to be crushed by being caught in. By crushing, a large lump of cement clinker becomes a cement clinker having a particle size equal to or smaller than the allowable particle size, and falls downward from the gap S1.
  • the third roll 15c also rotates to entrain the cement clinker on the third and fourth rolls 15c and 15d together with the fourth roll 15d (that is, the gap S3), The cement clinker is crushed by being caught between them.
  • crushing is performed at two locations in the roll crusher 15, and more cement clinker can be crushed and dropped downward.
  • the load acting on the crushing rings 22T, 22R, 23T, and 23R during rotation causes the crushing teeth 24 and 27 to crush the cement clinker.
  • the load that acts is reduced at other times.
  • each crushing ring 22T, 22R, 23T, 23R is rotated. The timing at which the load acting on the load increases can be made different.
  • the timing at which the load acts on each of the crushing rings 22T, 22R, 23T, and 23R during rotation can be shifted from each other.
  • the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the crushing rings 22 and 23 have different tooth crushing teeth 24a to 24c and 27a to 27c, respectively. That is, not only the high teeth 24a and 27a but also the low teeth 24c and 27c are formed on the crushing rings 22 and 23, respectively. As a result, a large block of cement clinker that cannot be crushed without being pinched by the high teeth 24a, 27a can be crushed by being pinched by the low teeth 24c, 27c. Thereby, it can suppress that a large lump of cement clinker remains without being bitten on the first roll 15a and the third roll 15c.
  • the load which acts on the crushing rings 22 and 23 becomes a peak. Since the high tooth forming portion 30H and the low tooth forming portion 30L are arranged in a staggered manner on the outer peripheral surfaces of the first roll 15a and the third roll 15c, the high teeth 24a and 27a of the first roll 15a and the third roll 15c are orthogonal to each other. It is possible to prevent them from being arranged adjacent to each other in the direction. Thereby, the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the first roll 15a and the third roll 15c have the first crushing ring 22 and the second crushing ring 23 mounted on the first shaft 21 in a normal posture, and the first crushing ring 22 and the second crushing ring 23 are adjacent to the first crushing ring 22 and the second crushing ring 23. Is mounted on the first shaft 21 in an inverted posture, and is further repeated. Therefore, the first roll 15 a and the third roll 15 c can be manufactured by the two types of crushing rings 22 and 23. Therefore, although four types of crushing rings 22T, 22R, 23T, and 23R are used, the types of molds for manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
  • each crushing ring 32, 33T since the adjacent crushing teeth 34 and 35 are arranged so as to be shifted from each other by 1/3 times the pitch p2 in the circumferential direction also in the second roll 15b and the fourth roll 15d, each crushing ring 32, 33T, The timing at which the load acting on 33R increases can be made different. That is, the timing at which a load acts on each of the crushing rings 32, 33T, and 33R during rotation can be shifted from each other. Thereby, the time-dependent change of the load which acts on the 2nd roll 15b and the 4th roll 15d can be leveled, and, thereby, the time-dependent change of the load of the rotation unit 17 can be leveled.
  • the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface (the hatching of the second roll 15b in FIGS. 3 and 12). Part reference). Therefore, when the second roll 15b and the fourth roll 15d are rotated, large cement clinker remaining on the rolls 15b and 15d without falling from the gaps S1 to S3 is moved to one side in the orthogonal direction (for example, the second roll 15b). The other end side of the shaft 31 can be sent. By sending the cement clinker in this way, the cement clinker of the lump can be crushed by colliding with the cement clinker of another lump. In addition, by sending cement clinker, it is possible to guide to the gaps S1 to S3 where the cement clinker remaining on the rolls 15b and 15d can be well bitten. be able to.
  • the crushing teeth 24 and 27 adjacent in the orthogonal direction are arranged with a half pitch p1 / 2 shifted to the other circumferential direction, and a tooth row is formed by the shifted crushing teeth 24 and 27.
  • the This tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a. Therefore, by rotating the first roll 15a in the other circumferential direction, a large lump of cement clinker remaining on the roll 15a can be sent to one side in the orthogonal direction by this tooth row, and the second and fourth rolls 15b , 15d has the same effect as the tooth row 36.
  • the second crushing ring 32 is mounted on the second shaft 31 with the second and fourth rolls 15b and 15d, and the second crushing ring 33T in the normal posture and the second crushing ring 33R in the inverted posture are arranged next to the first crushing ring 32 in that order.
  • the second shaft 31 is packaged and manufactured by repeating it. Therefore, the 2nd roll 15b and the 4th roll 15d can be manufactured by two types of crushing rings 32 and 33.
  • FIG. therefore, although three types of crushing rings 32, 33T, and 33R are used, the number of types of molds when manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
  • the first to fourth rolls 15a to 15d are arranged in this order, and the adjacent rolls 15a to 15d are arranged to be different types of rolls.
  • the high tooth 24a and the tooth bottom, the low tooth 24c and the crushing tooth 34, the low tooth 24c and the tooth bottom, and the like can be matched.
  • the temporal change in the magnitude of the load acting on the crushing rings 22, 23, 32, 33 can be further leveled, whereby the temporal change in the load of the rotating unit 17 can be leveled.
  • the four rolls 15a to 15d are arranged so that the adjacent rolls 15a to 15d are different types of rolls, but the same roll may be used.
  • a roll having the same structure as the first roll 15a may be adopted for the four rolls
  • a roll having the same structure as the second roll 15b may be adopted for the four rolls 15a to 15d.
  • the rotation control mode of the four rolls 15a to 15d at the time of crushing is not limited to the normal mode and the high crushing mode as described above, and may be rotated in different rotation control modes.
  • the adjacent crushing teeth 24, 27, 34, and 35 are shifted from each other by 1/2 times or 1/3 times the pitch, and the shift amount may be 1/4 times the pitch. That is, it is only necessary that the amount of deviation between the adjacent crushing teeth 24, 27, 34, and 35 is 1 / n times the pitch (n: integer).
  • the second reference tooth is shifted 360 / (n ⁇ N) (N: the number of teeth of the second crushing ring) in the circumferential direction with respect to the first reference tooth. Will be placed.
  • the widths of the gaps S1 to S3 are changed by changing the positions of the tooth surfaces of the crushing teeth 24 and 27.
  • the width of the gaps S1 to S3 may be changed by changing.
  • the keys 21a and 31a are formed on the shafts 21 and 31, and the key grooves 22a, 23a, 32a and 33a are formed on the crushing rings 22, 23, 32 and 33.
  • a keyway may be formed and a key may be formed in the crushing ring.
  • the plurality of crushing rings 22 and 23 are arranged in order, a crushing ring having crushing teeth in which at least one different arrangement among the plurality of crushing rings may be used. Even in this case, the timing at which the load acting on at least one crushing ring becomes large can be shifted, which is useful for leveling the load with time.
  • the high tooth forming part 30H and the low tooth forming part 30L of the first roll 15a and the third roll 15c are not necessarily arranged in a staggered manner, and may be arranged in a striped manner. Moreover, the high-tooth formation part 30H and the low-tooth formation part 30L may be arrange

Abstract

A roll crusher of a cooler device is provided which can level out changes over time in the load on the rolls. This roll crusher 15 of a cooler device 1 is provided with multiple load reducing rolls 15a, 15b. The load reducing rolls 15a, 15b are arranged in parallel to a conveyance direction with a gap S1 therebetween and are rotated by rotation units about rotation axes L1, L2, so as to crush cement. The load reducing rolls 15a, 15b have multiple crushing rings 22, 23, 32, 33, and on the outer peripheral surface of the crushing rings 22, 23, 32, 33, crushing teeth 24, 27, 34, 35 are formed at an equal pitch p1, p2, and the crushing teeth 27, 35 are arranged offset in the circumferential direction with respect to adjacent crushing teeth 24, 34.

Description

クーラ装置のロールクラッシャRoller crusher for cooler
　本発明は、高温の粒状搬送物、例えば粒状のセメントクリンカを搬送しながら冷却するクーラ装置のロールクラッシャに関する。 The present invention relates to a roll crusher of a cooler apparatus that cools a high-temperature granular conveyance object, for example, a granular cement clinker while conveying the granular conveyance object.
　セメントプラントには、予熱、仮焼及び焼成を経て生成された高温のセメントクリンカを冷却しながら搬送方向に搬送するクーラ装置が備わっており、例えば、特許文献１のような冷却装置がある。この冷却装置は、冷却部でクリンカを冷却しながら搬送し、冷却部の排出端部からクリンカを排出するようになっている。また、冷却装置は、排出端部近傍に搬送方向に対して直角方向に延在する４本のロールを備えている。４本のロールのうち排出端部側に位置する３本のロールは、正回転（即ち、搬送方向に送り出すような回転）する。また、４本目の逆転ロールは、逆回転するようになっており、この逆転ロールとそれに隣接するロールとによって塊状クリンカを挟み込んで圧縮破砕するようになっている。 The cement plant is equipped with a cooler device that transports the high-temperature cement clinker generated through preheating, calcination, and firing in the transport direction while cooling, and for example, there is a cooling device as in Patent Document 1. This cooling device conveys the clinker while cooling it in the cooling section, and discharges the clinker from the discharge end of the cooling section. Further, the cooling device includes four rolls extending in the direction perpendicular to the transport direction in the vicinity of the discharge end. Of the four rolls, the three rolls positioned on the discharge end side rotate in the normal direction (that is, rotate so as to be fed in the transport direction). Moreover, the 4th reverse rotation roll reversely rotates, and a block clinker is pinched | interposed by this reverse rotation roll and the roll adjacent to it, and it compresses and crushes.
特開昭６１－２９５２６４号公報JP-A 61-295264
　特許文献１に記載の４本のロールに関して、更にクリンカを効率的に破砕するために、４本のロールの外周面に複数の歯を形成することが考えられ、ロールを回動することによって排出端部から排出されるクリンカが歯によって破砕される。このような構成の場合、クリンカを歯で破砕する際にロールに負荷が作用する。歯による破砕がロールの複数個所で同時期に行われると、ロールの負荷が特定の時期だけ極大化する。そのため、大きな負荷が生じてもロールを回転させることができるような回転機械、即ち大きな駆動力を発生可能な電動機等の回転ユニットが必要となる。このような大きな駆動力を発生可能な回転ユニットは、外形寸法が大きく且つ消費電力が大きい。それ故、回転ユニットの小型化及び消費電力の低減をすべく、ロールの負荷が特定の時期だけ極大化することを抑制することが望まれている。 Regarding the four rolls described in Patent Document 1, in order to further efficiently crush the clinker, it is conceivable to form a plurality of teeth on the outer peripheral surface of the four rolls, and the rolls are discharged by rotating the rolls. The clinker discharged from the end is crushed by the teeth. In such a configuration, a load is applied to the roll when the clinker is crushed with teeth. When crushing by teeth is performed at a plurality of locations on the roll at the same time, the load on the roll is maximized only at a specific time. Therefore, a rotating machine that can rotate the roll even when a large load occurs, that is, a rotating unit such as an electric motor that can generate a large driving force is required. The rotating unit capable of generating such a large driving force has a large outer dimension and high power consumption. Therefore, in order to reduce the size of the rotating unit and reduce the power consumption, it is desired to suppress the roll load from being maximized only at a specific time.
　そこで本発明は、ロールの負荷の経時変化を平準化することができるクーラ装置のロールクラッシャを提供することを目的としている。 Therefore, an object of the present invention is to provide a roll crusher for a cooler apparatus that can level out changes in roll load with time.
　本発明のクーラ装置のロールクラッシャは、粒状搬送物を搬送しながら冷却するクーラ装置において、前記粒状搬送物を破砕するためのロールクラッシャであって、互いに隙間をあけて搬送方向に並設され、且つ前記搬送方向に直交し且つ互いに平行する軸線の回りに回転ユニットによって夫々回転されて前記粒状搬送物を破砕する複数のロールを備え、前記複数のロールのうちの少なくとも１つのロールは、負荷低減ロールであり、前記負荷低減ロールは、複数の破砕リングを有し、前記複数の破砕リングの各々は、周方向に等間隔をあけて配置されている複数の破砕歯を外周面に有し、前記複数の破砕リングのうち少なくとも１つの前記複数の破砕歯は、隣接する前記破砕リングの前記複数の破砕歯に対して前記周方向にずらして配置されているものである。 The roll crusher of the cooler device of the present invention is a roll crusher for crushing the granular conveyed product in a cooler device that cools while conveying the granular conveyed product, and is arranged in parallel in the conveying direction with a gap between each other, And a plurality of rolls each of which is rotated by a rotating unit around an axis line orthogonal to the transport direction and parallel to each other to crush the granular transported material, and at least one of the plurality of rolls has a load reduction The load reducing roll has a plurality of crushing rings, and each of the plurality of crushing rings has a plurality of crushing teeth arranged at equal intervals in the circumferential direction on the outer peripheral surface, Among the plurality of crushing rings, at least one of the plurality of crushing teeth is shifted in the circumferential direction with respect to the plurality of crushing teeth of the adjacent crushing rings. It is what is.
　本発明に従えば、少なくとも１つの破砕リングに関して複数の破砕歯が周方向にずらして配置されている。それ故、ロールを回転させた際、ずらして配置されている破砕リングとそれ以外の破砕リングに夫々作用する破砕時負荷に関してその負荷が大きくなるタイミングをずらすことができる。これにより、負荷低減ロールに作用する負荷の経時変化を平準化することができ、その結果回転ユニットの負荷の経時変化を平準化することができる。 According to the present invention, a plurality of crushing teeth are arranged shifted in the circumferential direction with respect to at least one crushing ring. Therefore, when the roll is rotated, the timing at which the load becomes large can be shifted with respect to the load at the time of crushing which acts on the crushing rings arranged in a shifted manner and the other crushing rings. Thereby, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, it is possible to level the change with time of the load of the rotating unit.
　上記発明において、前記複数の破砕歯は、予め定められたピッチで前記破砕リングの外周面に配置され、前記軸線が延在する軸線方向に隣接する前記破砕リングの前記複数の破砕歯に対して前記ピッチの１／ｎ倍（ｎ：２以上の整数）ずつ周方向一方にずれるように配置されていてもよい。 In the above invention, the plurality of crushing teeth are arranged on an outer peripheral surface of the crushing ring at a predetermined pitch, and the plurality of crushing teeth of the crushing ring adjacent in the axial direction in which the axis extends. The pitches may be arranged so as to deviate in the circumferential direction by 1 / n times the pitch (n: an integer of 2 or more).
　上記構成に従えば、破砕歯が軸線方向に並んで歯列を形成し、その歯列が周方向一方にねじれるように形成される。これにより、負荷低減ロールを回転させた際、破砕できずにロールの上に残った塊の粒状搬送物を軸線方向一方に送ることができる。このように塊の粒状搬送物を送ることで残った塊の粒状搬送物を他の塊の粒状搬送物と衝突させて粉砕させることができる。また、粒状搬送物を送ることによって、ロール上に残る粒状搬送物をうまく噛み込むことができる隙間に案内することができる。これにより、大きな粒径の粒状搬送物であっても上手く噛み込むことができる。 According to the above configuration, the crushed teeth are aligned in the axial direction to form a dentition, and the dentition is twisted in one circumferential direction. Thereby, when rotating a load reduction roll, the granular conveyance thing of the lump which cannot be crushed but remained on the roll can be sent to an axial direction one side. Thus, the lump granular conveyance thing which is sent by lump granular conveyance thing collides with the granular conveyance substance of another lump, and can grind | pulverize. Further, by feeding the granular conveyed product, the granular conveyed product remaining on the roll can be guided to a gap where the granular conveyed product can be well bitten. Thereby, even a granular conveyed product with a large particle size can be bitten well.
　上記発明において、前記負荷低減ロールは、前記軸線方向に延在し、且つ前記回転ユニットによって前記軸線回りに回転させられるシャフトを有し、前記シャフトは、前記軸線方向に延在し且つその外周面に互いに係合する係合片及び被係合溝のいずれか一方を有し、前記複数の破砕リングは、前記係合片及び前記被係合溝のいずれか他方を内周面に有し、前記係合片を前記被係合溝に係合させることで前記周方向に相対変位不能に前記シャフトに外装され、前記複数の破砕リングは、第１破砕リング及び第２破砕リングを含み、前記第１破砕リングは、前記複数の破砕歯のうちの１つである第１基準歯を有し、前記第２破砕リングは、前記複数の破砕歯のうちの１つである第２基準歯を有し、前記第１基準歯は、前記第１破砕リングの中心と前記係合片及び前記被係合溝のいずれか他方の中心を結ぶ線上に位置し、前記第２基準歯は、前記第１基準歯に対して前記周方向に３６０／（ｎ×Ｎ）（Ｎ：第２破砕リングの歯数）度ずらして配置されてもよい。 In the above invention, the load reduction roll has a shaft that extends in the axial direction and is rotated about the axis by the rotating unit, and the shaft extends in the axial direction and has an outer peripheral surface. The plurality of crushing rings have one of the engagement piece and the engaged groove on the inner peripheral surface thereof, By engaging the engagement piece with the engaged groove, the shaft is sheathed so as not to be relatively displaced in the circumferential direction, and the plurality of crushing rings include a first crushing ring and a second crushing ring, The first crushing ring has a first reference tooth that is one of the plurality of crushing teeth, and the second crushing ring has a second reference tooth that is one of the plurality of crushing teeth. And the first reference tooth is located in the first crushing ring. And the second reference teeth are 360 / (n × N) in the circumferential direction with respect to the first reference teeth. (N: the number of teeth of the second crushing ring) may be shifted by a degree.
　上記構成に従えば、第２破砕リングを反転させると、第１破砕リングの破砕歯に対して３６０×（ｎ－１）／（ｎ×Ｎ）度ずれて破砕歯が配置される破砕リング（即ち、ピッチの（ｎ－１）／ｎ倍ずつ前記周方向一方に破砕歯がずれている破砕リング）として用いることができる。それ故、破砕リングを製造するための型の種類を使用される破砕リングの種類よりも少なくすることができ、製造コストを低減することができる。 According to the above configuration, when the second crushing ring is inverted, the crushing ring in which the crushing teeth are arranged with a shift of 360 × (n−1) / (n × N) degrees with respect to the crushing teeth of the first crushing ring ( That is, it can be used as a crushing ring in which crushing teeth are displaced in one circumferential direction by (n−1) / n times the pitch. Therefore, the type of mold for manufacturing the crushing ring can be made smaller than the type of crushing ring used, and the manufacturing cost can be reduced.
　上記発明において、前記複数の破砕歯は、第１高さを有する前記破砕歯である高歯と前記第１高さより低い第２高さを有する前記破砕歯である低歯とを含んでもよい。 In the above invention, the plurality of crushing teeth may include a high tooth that is the crushing tooth having a first height and a low tooth that is the crushing tooth having a second height lower than the first height.
　上記構成に従えば、低歯を形成することによって、高歯では挟むことができない大きな塊の粒状搬送物を低歯で挟んで破砕することができる。これにより、ロール上に大きな塊の粒状搬送物が噛み込まれずに残ってしまうことを抑制することができる。 According to the above configuration, by forming the low teeth, it is possible to crush a large lump of granular material that cannot be pinched with the high teeth with the low teeth. Thereby, it can suppress that a large lump granular conveyance thing remains without being bitten on a roll.
　上記発明において、前記負荷低減ロールの外周面には、複数の前記高歯が前記周方向に並んでいる高歯形成部位と、複数の前記低歯が前記周方向に並んでいる低歯形成部位とがあり、前記高歯形成部位と前記低歯形成部位とが千鳥状に配置されていてもよい。 In the above invention, on the outer peripheral surface of the load reducing roll, a plurality of the high teeth are arranged in the circumferential direction, and a plurality of the low teeth are arranged in the circumferential direction. The high tooth formation site and the low tooth formation site may be arranged in a staggered manner.
　上記構成に従えば、破砕時にロール間に軸線方向に低歯と高歯とが互い違いに配置されるので、負荷低減ロールに作用する負荷の経時変化を平準化することができ、その結果回転ユニットの負荷の経時変化を平準化することができる。 According to the above configuration, since the low teeth and the high teeth are alternately arranged in the axial direction between the rolls during crushing, it is possible to level the change with time of the load acting on the load reducing roll, and as a result, the rotating unit. The change with time of the load can be leveled.
　上記発明において、前記負荷低減ロールは、前記軸線が延在する軸線方向に延在し、且つ前記回転ユニットによって前記軸線回りに回転させられるシャフトを有し、前記複数の破砕歯は、予め定められたピッチで等間隔をあけて前記破砕リングの外周面に配置され、且つ前記軸線方向に隣接する前記破砕リングの前記複数の破砕歯に対して前記ピッチの１／２倍ずつ周方向一方にずらして配置され、前記シャフトは、前記軸線方向に延在し且つ互いに係合する係合片及び被係合溝のいずれか一方を外周面に有し、前記複数の破砕リングは、前記係合片及び前記被係合溝のいずれか他方を内周面に有し、前記係合片を前記被係合溝に係合させることで前記周方向に相対変位不能に前記シャフトに外装され、前記破砕リングの外周面には、少なくとも２つ以上の前記高歯が並ぶ前記高歯形成部位と少なくとも２つ以上の前記低歯が並ぶ前記低歯形成部位とがあり、前記複数の破砕リングは、第１破砕リング及び第２破砕リングを含み、前記第１破砕リングは、前記複数の破砕歯のうちの１つであって前記第１破砕リングの中心と前記係合片及び前記被係合溝のいずれか他方の中心を結ぶ線上に位置している第１基準歯を有し、前記第１破砕リングの外周面に前記第１基準歯を基準として前記周方向に互い違いに前記高歯形成部位及び前記低歯形成部位が配置されており、前記第２破砕リングは、前記複数の破砕歯のうちの１つであって前記第１基準歯に対して前記周方向一方に前記ピッチの１／２倍ずらして配置されている第２基準歯を有し、前記第２破砕リングの外周面に前記第２基準歯を基準として前記周方向において互い違いに前記高歯形成部位と前記低歯形成部位とが配置されており、前記第１破砕リング及び前記第２破砕リングは、各々の前記軸線回りに回転対称性を有するように形成されていてもよい。 In the above invention, the load reducing roll has a shaft that extends in an axial direction in which the axis extends and is rotated around the axis by the rotating unit, and the plurality of crushing teeth are predetermined. Are arranged on the outer peripheral surface of the crushing ring at equal intervals with a predetermined pitch, and shifted to one side in the circumferential direction by a half of the pitch with respect to the crushing teeth of the crushing ring adjacent in the axial direction. The shaft has one of an engagement piece and an engagement groove extending in the axial direction and engaging with each other on an outer peripheral surface, and the plurality of crushing rings include the engagement piece And the other of the engaged grooves on the inner peripheral surface, and by engaging the engaging piece with the engaged groove, the outer periphery of the shaft is mounted on the shaft so as not to be relatively displaceable in the circumferential direction. There is little on the outer peripheral surface of the ring. There are both the high tooth forming part where two or more high teeth are arranged and the low tooth forming part where at least two or more low teeth are arranged, and the plurality of crushing rings include a first crushing ring and a second crushing ring. The first crushing ring is one of the plurality of crushing teeth, and connects the center of the first crushing ring and the other one of the engaging piece and the engaged groove. A first reference tooth positioned on a line, and the high tooth formation portion and the low tooth formation portion are alternately arranged in the circumferential direction on the outer peripheral surface of the first crushing ring with reference to the first reference tooth. The second crushing ring is one of the plurality of crushing teeth and is arranged with a shift of ½ times the pitch in the circumferential direction with respect to the first reference tooth. A second reference tooth; The high-tooth formation site and the low-tooth formation site are alternately arranged in the circumferential direction with respect to a quasi-tooth, and the first crushing ring and the second crushing ring are rotationally symmetric about each axis. It may be formed to have properties.
　上記構成に従えば、シャフトに第１破砕リング及び第２破砕リングを正規姿勢で外装し、その隣接する位置に第１破砕リング及び第２破砕リングを反転させた反転姿勢で外装し、更にそれを繰り返すことで破砕歯がピッチの１/２倍ずつずれ且つ前記高歯領域と前記低歯領域とが千鳥状に配置されている負荷低減ロールを製造することができる。製造する際に４種類の破砕リングが使用されるが、破砕リングを製造するための型の種類を２つに抑えることができ、製造コストを低減することができる。 According to the above configuration, the first crushing ring and the second crushing ring are externally mounted on the shaft in a normal posture, and the first crushing ring and the second crushing ring are externally mounted in the inverted posture at the adjacent positions, and further By repeating the above, it is possible to manufacture a load reducing roll in which the crushing teeth are displaced by 1/2 times the pitch and the high tooth region and the low tooth region are arranged in a staggered manner. Although four types of crushing rings are used in manufacturing, the number of types of molds for manufacturing the crushing rings can be suppressed to two, and the manufacturing cost can be reduced.
　上記発明において、前記複数のロールは、隣接する少なくとも２つ以上の前記負荷低減ロールを有し、隣接する前記負荷低減ロールは、前記複数の破砕歯の前記周方向におけるずれ量が互いに異なる前記破砕リングを夫々有していてもよい。 In the above invention, the plurality of rolls have at least two or more adjacent load reduction rolls, and the adjacent load reduction rolls have different crushing amounts in the circumferential direction of the plurality of crushing teeth. Each may have a ring.
　上記構成に従えば、負荷低減ロールに作用する負荷の経時変化を更に平準化することができ、その結果回転ユニットの負荷の経時変化を更に平準化することができる。 According to the above configuration, the change with time of the load acting on the load reduction roll can be further leveled, and as a result, the change with time of the load of the rotating unit can be further leveled.
　本発明によれば、ロールの負荷の経時変化を平準化することができる。 According to the present invention, it is possible to level the change with time of the roll load.
本発明に係るクーラ装置を備えるセメントプラントの構成を示す概略図である。It is the schematic which shows the structure of a cement plant provided with the cooler apparatus which concerns on this invention. 図１のクーラ装置の構成の概略を示す斜視図である。It is a perspective view which shows the outline of a structure of the cooler apparatus of FIG. 図２のクーラ装置のロールクラッシャを示す斜視図である。It is a perspective view which shows the roll crusher of the cooler apparatus of FIG. 図３の第１ロールの第１破砕リングを示す正面図である。It is a front view which shows the 1st crushing ring of the 1st roll of FIG. 図３の第１ロールの第１破砕リングの一部を示す正面図である。It is a front view which shows a part of 1st crushing ring of the 1st roll of FIG. 図３の第１ロールの第２破砕リングを示す正面図である。It is a front view which shows the 2nd crushing ring of the 1st roll of FIG. 図４の第１ロールの第２破砕リングの一部を示す正面図である。It is a front view which shows a part of 2nd crushing ring of the 1st roll of FIG. 図３の第１ロールを一部拡大して示す拡大斜視図である。It is an expansion perspective view which expands and shows the 1st roll of FIG. 3 partially. 図３の第２ロールの第１破砕リングを示す正面図である。It is a front view which shows the 1st crushing ring of the 2nd roll of FIG. 図３の第２ロールの第２破砕リングを示す正面図である。It is a front view which shows the 2nd crushing ring of the 2nd roll of FIG. 図３の第２ロールの第２破砕リングの一部を示す正面図である。It is a front view which shows a part of 2nd crushing ring of the 2nd roll of FIG. 図３の第２ロールを一部拡大して示す拡大斜視図である。It is an expansion perspective view which expands and shows a part of 2nd roll of FIG.
　以下、本発明の実施形態に係るクーラ装置１について図面を参照しながら説明する。なお、以下の説明で用いる方向の概念は、説明する上で便宜上使用するものであって、発明の構成の向き等をその方向に限定するものではない。また、以下に説明するクーラ装置１は、本発明の一実施形態に過ぎない。従って、本発明は実施形態に限定されず、発明の趣旨を逸脱しない範囲で追加、削除、変更が可能である。 Hereinafter, a cooler device 1 according to an embodiment of the present invention will be described with reference to the drawings. In addition, the concept of the direction used in the following description is used for convenience in description, and does not limit the direction of the configuration of the invention in that direction. Moreover, the cooler apparatus 1 demonstrated below is only one Embodiment of this invention. Therefore, the present invention is not limited to the embodiments, and additions, deletions, and changes can be made without departing from the spirit of the invention.
　［第１実施形態］
　＜セメントプラント＞
　セメントは、石灰石、粘土、けい石、及び鉄等を含むセメント原料を粉砕する原料粉砕工程と、粉砕されたセメント原料を焼成する焼成工程と、最終工程である仕上げ工程を経て生成され、これらの３つの工程がセメントプラントにて行われる。これら３つの工程のうちの１つである焼成工程では、粉砕されたセメント原料を焼成して冷却し、粒状のセメントクリンカを生成している。図１に示す構成は、セメントプラントの焼成設備３を示すものであり、セメント製造における焼成工程を行っている部分である。焼成設備３は、原料粉砕工程にて粉砕されたセメント原料を予熱、仮焼、及び焼成し、焼成されて高温となった粒状のセメントクリンカを冷却するようになっている。 [First Embodiment]
<Cement plant>
Cement is produced through a raw material grinding process for grinding cement raw materials containing limestone, clay, silica, iron, etc., a firing process for firing the ground cement raw material, and a finishing process as the final process. Three processes are performed in a cement plant. In the firing step which is one of these three steps, the ground cement raw material is fired and cooled to produce a granular cement clinker. The structure shown in FIG. 1 shows the calcination equipment 3 of a cement plant, and is the part which is performing the calcination process in cement manufacture. The firing facility 3 preheats, calcines, and fires the cement raw material pulverized in the raw material pulverization step, and cools the granular cement clinker that has been baked to a high temperature.
　焼成工程を行う部分について更に詳細に説明すると、焼成設備３は、予熱器４を備えており、予熱器４は、複数のサイクロン５によって構成されている。サイクロン５は、上下方向に並べて段状に設けられており、その中の排気を上段のサイクロン５に吹き上げ（図１の破線の矢印参照）、投入されたセメント原料を旋回流により分離し、下段のサイクロン５へと投入するようになっている（図１の実線の矢印参照）。最下段の一段上に位置するサイクロン５は、セメント原料を仮焼炉６に投入するようになっている。仮焼炉６は、バーナを有しており、このバーナによる熱と後述する排気の熱とによって投入されたセメント原料中の炭酸ガスを分離する反応（即ち、仮焼反応）が行われる。仮焼炉６で仮焼反応が促進されたセメント原料は、後述のように最下段のサイクロン５に導かれ、更にこのサイクロン５内のセメント原料がロータリキルン７へと供給されるようになっている。 If it demonstrates in detail about the part which performs a baking process, the baking equipment 3 is provided with the preheater 4, and the preheater 4 is comprised by the several cyclone 5. FIG. The cyclones 5 are arranged in a stepwise manner in the vertical direction. The exhaust in the cyclones 5 is blown up to the upper cyclone 5 (see the broken arrow in FIG. 1), and the input cement raw material is separated by a swirling flow. To the cyclone 5 (see the solid arrow in FIG. 1). The cyclone 5 located on the uppermost stage of the lowest stage is designed to feed cement raw material into the calcining furnace 6. The calcining furnace 6 has a burner, and a reaction (that is, a calcining reaction) is performed to separate carbon dioxide gas in the cement raw material input by heat from the burner and heat of exhaust gas described later. The cement raw material whose calcining reaction is promoted in the calcining furnace 6 is guided to the lowermost cyclone 5 as will be described later, and the cement raw material in the cyclone 5 is further supplied to the rotary kiln 7. Yes.
　このロータリキルン７は、数十メートル以上の横長円筒状に形成されている。ロータリキルン７は、サイクロン５側である入口から先端側にある出口に向かって僅かに下向きに傾いて配置されている。それ故、軸線を中心にロータリキルン７を回転させることによって、入口側にあるセメント原料が出口側へと搬送されるようになっている。また、ロータリキルン７の出口には、燃焼装置８が設けられている。燃焼装置８は、高温の火炎を形成し、セメント原料を焼成するようになっている。 This rotary kiln 7 is formed in a horizontally long cylindrical shape of several tens of meters or more. The rotary kiln 7 is disposed so as to be inclined slightly downward from the inlet on the cyclone 5 side toward the outlet on the tip side. Therefore, by rotating the rotary kiln 7 around the axis, the cement raw material on the inlet side is conveyed to the outlet side. A combustion device 8 is provided at the outlet of the rotary kiln 7. The combustion device 8 forms a high-temperature flame and fires the cement raw material.
　また、燃焼装置８は、高温の燃焼ガスを入口側に向かって噴射し、燃焼装置８から噴射された燃焼ガスは、セメント原料を焼成しながらロータリキルン７内を入口の方へと流れる。燃焼ガスは、高温の排気として仮焼炉６の下端から噴流となって仮焼炉６内を上方に吹き上がり（図１の破線の矢印参照）、仮焼炉６内に投入されたセメント原料を上方に吹き上げるようになっている。セメント原料は、この排気及びバーナによって約９００℃まで加熱される、即ち仮焼される。また、吹き上げられたセメント原料は、排気と共に最下段のサイクロン５に流入し、ここで流入する排気とセメント原料とが分離される。分離されたセメント原料は、ロータリキルン７に供給され、排気は、一段上のサイクロン５へと吹き上げられる。吹き上げられた排気は、各サイクロン５でそこに投入されたセメント原料と熱交換を行ってセメント原料を加熱し、再びセメント原料と分離される。分離された排気は、更にその上のサイクロン５へと上昇して熱交換を繰り返す。そして、最上段のサイクロン５から大気に排出される。 Further, the combustion device 8 injects high-temperature combustion gas toward the inlet side, and the combustion gas injected from the combustion device 8 flows in the rotary kiln 7 toward the inlet while firing the cement raw material. Combustion gas is jetted from the lower end of the calcining furnace 6 as high-temperature exhaust gas and blows upward in the calcining furnace 6 (see the broken arrow in FIG. 1), and the cement raw material charged into the calcining furnace 6 is injected. Is blown upward. The cement raw material is heated to about 900 ° C. by this exhaust and burner, that is, calcined. The blown-up cement raw material flows into the lowermost cyclone 5 together with the exhaust gas, and the exhaust gas flowing in here and the cement raw material are separated. The separated cement raw material is supplied to the rotary kiln 7, and the exhaust is blown up to the cyclone 5 on the upper stage. The exhaust gas blown up is subjected to heat exchange with the cement raw material supplied thereto in each cyclone 5 to heat the cement raw material, and is separated from the cement raw material again. The separated exhaust gas further rises to the cyclone 5 above it and repeats heat exchange. And it is discharged | emitted from the uppermost cyclone 5 to air | atmosphere.
　このように構成される焼成設備３では、セメント原料が最上段のサイクロン５付近から投入され、排気と熱交換しながら十分に予熱されて最下段より一段上のサイクロン５まで降り、そして仮焼炉６に投入される。仮焼炉６では、セメント原料がバーナ及び高温のガスにより仮焼され、その後、セメント原料は、最下段のサイクロン５へと導かれそこで排気から分離されてロータリキルン７に供給される。供給されたセメント原料は、ロータリキルン７内で焼成されながら出口側へと搬送される。このように予熱、仮焼、及び焼成されることによって、セメントクリンカが成形される。ロータリキルン７の出口には、クーラ装置１が設けられており、ロータリキルン７の出口から成形されたセメントクリンカがクーラ装置１に排出される。 In the firing equipment 3 configured in this way, cement raw material is charged from the vicinity of the uppermost cyclone 5, sufficiently preheated while exchanging heat with the exhaust, and lowered to the cyclone 5 higher than the lowermost stage, and the calcining furnace 6 is input. In the calcining furnace 6, the cement raw material is calcined with a burner and a high-temperature gas, and then the cement raw material is guided to the lowermost cyclone 5 where it is separated from the exhaust gas and supplied to the rotary kiln 7. The supplied cement raw material is conveyed to the exit side while being fired in the rotary kiln 7. Thus, cement clinker is shape | molded by preheating, calcination, and baking. A cooler device 1 is provided at the outlet of the rotary kiln 7, and the cement clinker formed from the outlet of the rotary kiln 7 is discharged to the cooler device 1.
　＜クーラ装置＞
　クーラ装置１は、ロータリキルン７から排出されるセメントクリンカ（高温の粒状搬送物）を予め定められる搬送方向に搬送しながら冷却するようになっており、ロータリキルン７の出口直下には、固定傾斜グレート１１が配置されている。固定傾斜グレート１１は、ロータリキルン７の出口側から搬送方向に向かって下方に傾斜しており、ロータリキルン７の出口から排出された粒状のセメントクリンカが固定傾斜グレート１１上を転がるように搬送方向に落ちていくようになっている。固定傾斜グレート１１の搬送方向先端部には、複数の冷却格子列１３が設けられており、セメントクリンカが複数の冷却格子列１３上に堆積してクリンカ層１４を形成するようになっている。冷却格子列１３は、搬送方向に延在する構造体であり、互いに隣接するように搬送方向に直交する横方向（以下、「直交方向」ともいう）に並設されており、複数の冷却格子列１３の全てを覆い隠すようにその上にクリンカ層１４（図２の２点鎖線参照）が載っている。 <Cooler device>
The cooler device 1 is configured to cool a cement clinker (high-temperature granular conveyed product) discharged from the rotary kiln 7 while conveying it in a predetermined conveying direction. Great 11 is arranged. The fixed inclined grate 11 is inclined downward from the outlet side of the rotary kiln 7 in the conveying direction, and the granular cement clinker discharged from the outlet of the rotary kiln 7 rolls on the fixed inclined grate 11 in the conveying direction. It has come to fall. A plurality of cooling grid rows 13 are provided at the front end of the fixed inclined grate 11 in the conveyance direction, and cement clinker is deposited on the plurality of cooling grid rows 13 to form a clinker layer 14. The cooling grid row 13 is a structure that extends in the transport direction, and is arranged in parallel in a lateral direction (hereinafter, also referred to as “orthogonal direction”) orthogonal to the transport direction so as to be adjacent to each other. A clinker layer 14 (see a two-dot chain line in FIG. 2) is placed thereon so as to cover all of the rows 13.
　このように構成されている冷却格子列１３は、図示しない台車を有しており、搬送方向一方及び他方に移動されるようになっており、冷却格子列１３の移動と冷却格子列１３の停止とが繰り返されることによって粒状のセメントクリンカが搬送されるようになっている。その具体的な搬送方法としては、例えば直交方向に並ぶ全ての冷却格子列１３を前進させた後に隣接しない冷却格子列１３を複数回に分けて後退させる方法や、直交方向に延在するクロスバーを冷却格子列１３の上部に設けて、そのクロスバーを搬送方向に動かすことでクリンカ層１４を搬送方向に送る方法がある。なお、クリンカ層１４を搬送方向に送る構成及び方法については、前述する構成及び方法に限定されず、クリンカ層１４を搬送方向に送ることができる構成及び方法であればよい。このように搬送されるセメントクリンカは、冷却格子列１３の先端から下方に落下するようになっており、冷却格子列１３の先端の直下には、ロールクラッシャ１５が配置されている。 The thus configured cooling grid row 13 has a cart (not shown) and is moved in one direction and the other in the transport direction. The cooling grid row 13 is moved and the cooling grid row 13 is stopped. By repeating the above, a granular cement clinker is conveyed. Specific transport methods include, for example, a method in which all the cooling grid rows 13 aligned in the orthogonal direction are moved forward and then the non-adjacent cooling grid rows 13 are retracted in a plurality of times, or a cross bar extending in the orthogonal direction. There is a method in which the clinker layer 14 is fed in the transport direction by moving the crossbar in the transport direction. In addition, about the structure and method which send the clinker layer 14 to a conveyance direction, it is not limited to the structure and method mentioned above, What is necessary is just a structure and method which can send the clinker layer 14 to a conveyance direction. The cement clinker thus transported falls downward from the front end of the cooling grid row 13, and a roll crusher 15 is disposed immediately below the front end of the cooling grid row 13.
　図３に示すようにロールクラッシャ１５は、冷却格子列１３の先端から落ちてくるセメントクリンカを更に細かく破砕するための装置である。ロールクラッシャ１５は、４本の負荷低減ロール（以下、単に「ロール」という）１５ａ～１５ｄによって構成されている。４つのロール１５ａ～１５ｄは、直交方向に延在する円柱状の棒状体であり、各々の中心軸である回転軸Ｌ１～Ｌ４まわりに回転するように図示しない軸受機構によって軸支されている。４本のロール１５ａ～１５ｄは、各々の回転軸Ｌ１～Ｌ４が互いに平行し且つ互いに所定の間隔で搬送方向に並べて配置されており、４本のロール１５ａ～１５ｄの各々には、別々の回転ユニット１７が設けられている。回転ユニット１７は、いわゆる電動機であり、そこに入力される指令に応じて各ロール１５ａ～１５ｄを正回転及び逆回転するようになっている。また、回転ユニット１７には、制御装置１８が接続されており、制御装置１８は、回転ユニット１７の動きを制御することによって４本のロール１５ａ～１５ｄを回転させて塊状のセメントクリンカを破砕するようになっている。以下では、４本のロール１５ａ～１５ｄについて詳細に説明する。 As shown in FIG. 3, the roll crusher 15 is a device for further finely crushing the cement clinker falling from the tip of the cooling grid row 13. The roll crusher 15 includes four load reduction rolls (hereinafter simply referred to as “rolls”) 15a to 15d. The four rolls 15a to 15d are cylindrical rod-like bodies extending in the orthogonal direction, and are supported by a bearing mechanism (not shown) so as to rotate around the respective rotation axes L1 to L4. The four rolls 15a to 15d are arranged such that the rotation axes L1 to L4 are parallel to each other and arranged in the transport direction at a predetermined interval, and each of the four rolls 15a to 15d has a separate rotation. A unit 17 is provided. The rotation unit 17 is a so-called electric motor, and is configured to rotate the rolls 15a to 15d in a normal direction and a reverse direction in accordance with a command input thereto. Further, a control device 18 is connected to the rotation unit 17, and the control device 18 controls the movement of the rotation unit 17 to rotate the four rolls 15 a to 15 d to crush the massive cement clinker. It is like that. Hereinafter, the four rolls 15a to 15d will be described in detail.
　４本のロール１５ａ～１５ｄは、２種類のロールによって構成されている。具体的には、搬送方向から下流側から１番目と３番目は、第１種ロールによって構成され、２番目と４番目は、第２種ロールによって構成されている。以下では、第１種ロールとして１番目のロールである第１ロール１５ａの構成を図４乃至図８を参照しながら説明し、次に２番目のロールである第２ロール１５ｂの構成を図９乃至１２を参照しながら説明する。３番目のロールである第３ロール１５ｃ及び４番目のロールである第４ロール１５ｄの各々の構成は、第１ロール１５ａ及び第２ロール１５ｂの各々の構成と同じであるので、同一の符号を付して説明を省略する。 The four rolls 15a to 15d are composed of two types of rolls. Specifically, the first and third from the downstream side in the transport direction are configured by the first type roll, and the second and fourth are configured by the second type roll. Below, the structure of the 1st roll 15a which is a 1st roll as a 1st type roll is demonstrated, referring FIG. 4 thru | or FIG. 8, and the structure of the 2nd roll 15b which is a 2nd roll is shown in FIG. This will be described with reference to FIGS. The configurations of the third roll 15c, which is the third roll, and the fourth roll 15d, which is the fourth roll, are the same as the configurations of the first roll 15a and the second roll 15b. A description thereof will be omitted.
　第１ロール１５ａは、第１シャフト２１と、複数の破砕リング２２，２３とを有している。第１シャフト２１は、直交方向に延在する大略円柱状の部材であり、その両端部近傍が図示しない軸受機構によって回転軸Ｌ１回りに回転可能に軸支されている。また、第１シャフト２１の一端部は、回転ユニット１７に連結されており、回転ユニット１７によって回転軸Ｌ１回りに回転駆動されるようになっている。また、第１シャフト２１の外周面には、２つのキー２１ａが形成されている。係合片である２つのキー２１ａは、半径方向外側に突出し且つ第１シャフト２１の一端から他端まで延在しており、周方向に１８０度離して配置されている。このような形状を有する第１シャフト２１の外周面には、２種類の破砕リング２２，２３が交互に複数個外装されている。以下では、２種類の破砕リング２２，２３である第１破砕リング２２及び第２破砕リング２３の構成について説明する。 The first roll 15 a has a first shaft 21 and a plurality of crushing rings 22 and 23. The first shaft 21 is a substantially columnar member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L1 by a bearing mechanism (not shown). One end of the first shaft 21 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L1 by the rotation unit 17. Two keys 21 a are formed on the outer peripheral surface of the first shaft 21. The two keys 21a, which are engaging pieces, protrude radially outward and extend from one end of the first shaft 21 to the other end, and are arranged 180 degrees apart in the circumferential direction. A plurality of two types of crushing rings 22 and 23 are alternately mounted on the outer peripheral surface of the first shaft 21 having such a shape. Below, the structure of the 1st crushing ring 22 and the 2nd crushing ring 23 which are two types of crushing rings 22 and 23 is demonstrated.
　図４に示す第１破砕リング２２は、直交方向に延在する大略円筒状の部材であり、その内周面に２つのキー溝２２ａを有している。被係合溝であるキー溝２２ａは、第１シャフト２１のキー２１ａと同じ形状を有しており、第１破砕リング２２の一端から他端まで延在している。また、キー溝２２ａは、周方向において１８０度離して配置されており、第１破砕リング２２を第１シャフト２１に外装する際にキー溝２２ａにキー２１ａが嵌るようになっている。これにより、第１破砕リング２２は、第１シャフト２１に対して相対回転しないように外装されている。また、第１破砕リング２２の外周面には、複数の破砕歯２４が形成されている。本実施形態では、第１破砕リング２２の外周面に１８本の破砕歯２４が形成されており、１８本の破砕歯２４が等ピッチｐ１で配置されている。各破砕歯２４は、半径方向外方に突出し、且つ第１破砕リング２２の直交方向一端から他端まで延在している。また、複数の破砕歯２４には、歯たけが異なる破砕歯２４が含まれており、本実施形態において６本の高歯２４ａ、４本の中歯２４ｂ、及び８本の低歯２４ｃの３種類の異なる歯たけの歯が含まれている。 The first crushing ring 22 shown in FIG. 4 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 22a on the inner peripheral surface thereof. The key groove 22a, which is an engaged groove, has the same shape as the key 21a of the first shaft 21, and extends from one end of the first crushing ring 22 to the other end. The key groove 22a is arranged 180 degrees apart in the circumferential direction, and the key 21a is fitted into the key groove 22a when the first crushing ring 22 is externally mounted on the first shaft 21. Thus, the first crushing ring 22 is packaged so as not to rotate relative to the first shaft 21. A plurality of crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22. In this embodiment, 18 crushing teeth 24 are formed on the outer peripheral surface of the first crushing ring 22, and the 18 crushing teeth 24 are arranged at an equal pitch p1. Each crushing tooth 24 protrudes radially outward and extends from one end to the other end of the first crushing ring 22 in the orthogonal direction. Further, the plurality of crushing teeth 24 include crushing teeth 24 having different tooth depths. In this embodiment, three of the six high teeth 24a, the four middle teeth 24b, and the eight low teeth 24c. Different types of teeth are included.
　高歯２４ａは、３種類の歯のうち最も歯たけが大きい歯である。６つの高歯２４ａのうち１つの高歯２４ａは、第１破砕リング２２の中心軸（即ち、回転軸Ｌ１）と一方のキー溝２２ａの中心とを含む仮想中央面ＰＬ１１上に位置している。この高歯２４ａが第１基準歯となっており、第１破砕リング２２の外周面には、図４の第１基準歯２４ｄを基準にして周方向一方に２つの高歯２４ａが配置され、その次に中歯２４ｂが配置されている。中歯２４ｂは、高歯２４ａより低く且つ低歯２４ｃより高い歯である、即ち高歯２４ａ及び低歯２４ｃの歯たけの中間の歯たけを有している。更に、中歯２４ｂの周方向一方の隣には、４つの低歯２４ｃが等ピッチｐ１で並べて配置されている。低歯２４ｃは、３種類の歯のうち最も歯たけが小さい歯である。４つ低歯２４ｃの周方向一方の隣には、再び中歯２４ｂが配置され、その次に高歯２４ａが配置されるようになっている。この高歯２４ａは、仮想中央面ＰＬ１１上に位置しており、この高歯２４ａに続けて２つの高歯２４ａが周方向一方に等ピッチｐ１で並べて配置されている。更に続けて、中歯２４ｂ、４つの低歯２４ｃ、及び中歯２４ｂの順で等ピッチｐ１で配置されている。 The high tooth 24a is the tooth having the largest tooth depth among the three types of teeth. Of the six high teeth 24a, one high tooth 24a is located on the virtual central plane PL11 including the central axis (that is, the rotation axis L1) of the first crushing ring 22 and the center of one key groove 22a. . This high tooth 24a is a first reference tooth, and on the outer peripheral surface of the first crushing ring 22, two high teeth 24a are arranged on one side in the circumferential direction with reference to the first reference tooth 24d in FIG. Next, the middle teeth 24b are arranged. The middle teeth 24b are teeth lower than the high teeth 24a and higher than the low teeth 24c, that is, have a tooth depth intermediate between those of the high teeth 24a and the low teeth 24c. Further, four low teeth 24c are arranged side by side at an equal pitch p1 next to one circumferential direction of the middle teeth 24b. The low tooth 24c is a tooth having the smallest tooth depth among the three kinds of teeth. Next to one of the four low teeth 24c in the circumferential direction, the middle teeth 24b are arranged again, and then the high teeth 24a are arranged. The high teeth 24a are located on the virtual center plane PL11. Following the high teeth 24a, two high teeth 24a are arranged side by side at an equal pitch p1 in one circumferential direction. Subsequently, the middle teeth 24b, the four low teeth 24c, and the middle teeth 24b are arranged at an equal pitch p1 in this order.
　このように構成されている第１破砕リング２２では、外周面に高歯２４ａが３つずつ並べて配置され、並べて配置される３つの高歯２４ａが第１高歯形成部位２５（例えば、後述する図８の第１ロール１５ａの網掛け部分）を夫々構成している。また、２つの第１高歯形成部位２５の間には、周方向一方及び他方に４つの低歯２４ｃが夫々並べて配置されており、並べて配置される４つの低歯２４ｃが第１低歯形成部位２６を夫々構成している。これにより、第１破砕リング２２の外周面には、第１高歯形成部位２５及び第１低歯形成部位２６が周方向一方においてその順番で互い違いに配置されるようになっている。このような形状を有する第１破砕リング２２は、第１基準歯２４ｄに隣接する高歯２４ａが第１基準歯２４ｄに周方向一方側に位置する正規姿勢で第１シャフト２１に外装させることができる。 In the first crushing ring 22 configured in this way, three high teeth 24a are arranged side by side on the outer peripheral surface, and the three high teeth 24a arranged side by side are first high tooth forming portions 25 (for example, described later). The shaded portion of the first roll 15a in FIG. 8 is configured. Further, between the two first high-tooth forming portions 25, four low teeth 24c are arranged side by side in one and the other in the circumferential direction, and the four low teeth 24c arranged side by side form the first low-tooth formation. Each part 26 is constituted. Thereby, the 1st high-tooth formation site | part 25 and the 1st low-tooth formation site | part 26 are alternately arrange | positioned in the order in the circumferential direction one on the outer peripheral surface of the 1st crushing ring 22. FIG. The first crushing ring 22 having such a shape can be externally mounted on the first shaft 21 in a normal posture in which the high teeth 24a adjacent to the first reference teeth 24d are located on one side in the circumferential direction of the first reference teeth 24d. it can.
　また、第１破砕リング２２は、中心軸を中心とする回転対称性を有し且つキー溝２２ａが１８０度ずれた位置に配置されているので、仮想中央面ＰＬ１１に対して第１破砕リング２２の一方側と他方側とを反転させた反転姿勢で第１シャフト２１に外装できるようになっている。反転姿勢では、図５に示すように第１基準歯２４ｄの周方向の位置は変わらないが、２つの高歯２４ａが第１基準歯２４ｄの周方向他方側に並ぶように配置される。これにより、第１破砕リング２２を仮想中央面ＰＬ１１に対して左右を反転させることによって、外周面において第１基準歯２４ｄを基準として第１高歯形成部位２５及び第１低歯形成部位２６をその順番で周方向他方に互い違いに配置することができる。 Moreover, since the 1st crushing ring 22 has the rotational symmetry centering on a central axis, and the keyway 22a is arrange | positioned in the position which shifted | deviated 180 degree | times, the 1st crushing ring 22 is with respect to the virtual center plane PL11. The first shaft 21 can be externally mounted in an inverted posture in which the one side and the other side are inverted. In the reverse posture, as shown in FIG. 5, the circumferential position of the first reference tooth 24d does not change, but the two high teeth 24a are arranged so as to be arranged on the other circumferential side of the first reference tooth 24d. As a result, the first crushing ring 22 is reversed left and right with respect to the virtual central plane PL11, so that the first high tooth forming portion 25 and the first low tooth forming portion 26 are defined on the outer peripheral surface with reference to the first reference tooth 24d. They can be arranged alternately in the other circumferential direction in that order.
　図６に示す第２破砕リング２３は、直交方向に延在する大略円筒状の部材であり、第１破砕リング２２と略同じ構成を有している。即ち、第２破砕リング２３は、その内周面に被係合溝である２つのキー溝２３ａを有し、及び外周面に複数の破砕歯２７を有している。複数の破砕歯２７は、第１破砕リング２２の複数の破砕歯２４と同様に、歯たけが異なる破砕歯２７が含まれており、本実施形態において６本の高歯２７ａ、４本の中歯２７ｂ、及び８本の低歯２７ｃの３種類の異なる歯たけの歯が含まれている。また、複数の破砕歯２７の各々の並びも第１破砕リング２２の複数の破砕歯２４と同じ並びであり、第１基準歯２４ｄに対応する第２基準歯２７ｅから周方向一方に２つの高歯２７ａ、中歯２７ｂ、４つの低歯２７ｃ、中歯２７ｂ、３つの高歯２７ａ、中歯２７ｂ、４つの低歯２７ｃ、及び中歯２７ｂの順で第２破砕リング２３の外周面に並んでいる。第１破砕リング２２と第２破砕リング２３との相違点として、第２破砕リング２３では、第２破砕リング２３の中心軸とキー溝２３ａの中心とを含む仮想中央面ＰＬ１２上に第２基準歯２７ｅと中歯２７ｂとの間に形成される歯底２７ｄが位置し、第２基準歯２７ｅが仮想中央面に対してピッチｐ１の１／２倍ずれて配置されている。つまり、複数の破砕歯２７全体が第１破砕リング２２の複数の破砕歯２４に対して回転軸Ｌ１回りにピッチｐ１の１／２倍ずれて配置されている。 The second crushing ring 23 shown in FIG. 6 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 22. That is, the second crushing ring 23 has two key grooves 23a that are engaged grooves on its inner peripheral surface, and a plurality of crushing teeth 27 on its outer peripheral surface. Like the plurality of crushing teeth 24 of the first crushing ring 22, the plurality of crushing teeth 27 include crushing teeth 27 with different tooth depths. In the present embodiment, the six high teeth 27a, Three different types of teeth are included, a tooth 27b and eight low teeth 27c. Each of the plurality of crushing teeth 27 is also arranged in the same arrangement as the plurality of crushing teeth 24 of the first crushing ring 22, and has two heights in the circumferential direction from the second reference tooth 27 e corresponding to the first reference tooth 24 d. Teeth 27a, medium teeth 27b, four low teeth 27c, medium teeth 27b, three high teeth 27a, medium teeth 27b, four low teeth 27c, and medium teeth 27b are arranged on the outer peripheral surface of the second crushing ring 23 in this order. It is out. As a difference between the first crushing ring 22 and the second crushing ring 23, the second crushing ring 23 has a second reference on the virtual central plane PL12 including the central axis of the second crushing ring 23 and the center of the key groove 23a. A tooth bottom 27d formed between the teeth 27e and the middle teeth 27b is located, and the second reference teeth 27e are arranged with a deviation of 1/2 the pitch p1 with respect to the virtual center plane. That is, the entire plurality of crushing teeth 27 are arranged with a shift of ½ times the pitch p1 around the rotation axis L1 with respect to the plurality of crushing teeth 24 of the first crushing ring 22.
　このように形成されている第２破砕リング２３では、第１破砕リング２２と同様に、並べて配置される３つの高歯２７ａによって第２高歯形成部位２８が構成され、並べて配置される４つの低歯２７ｃによって第２低歯形成部位２９が構成される。即ち、第２破砕リング２３の外周面にもまた、第２基準歯２７ｅを基準として周方向一方において第２高歯形成部位２８及び第２低歯形成部位２９が互い違いに配置されるようになっている。このような形状を有する第２破砕リング２３は、第２基準歯２７ｅに隣接する高歯２７ａが第２基準歯２７ｅに対して周方向一方側に位置する正規姿勢で第１シャフト２１に外装させることができる。 In the 2nd crushing ring 23 formed in this way, the 2nd high tooth formation part 28 is constituted by the 3 high teeth 27a arranged side by side like the 1st crushing ring 22, and 4 pieces arranged side by side A second low tooth formation site 29 is configured by the low teeth 27c. That is, the second high-tooth forming portion 28 and the second low-tooth forming portion 29 are alternately arranged on the outer peripheral surface of the second crushing ring 23 on one side in the circumferential direction with respect to the second reference tooth 27e. ing. The second crushing ring 23 having such a shape is externally attached to the first shaft 21 in a normal posture in which the high teeth 27a adjacent to the second reference teeth 27e are located on one side in the circumferential direction with respect to the second reference teeth 27e. be able to.
　また、第２破砕リング２３は、中心軸を中心とする回転対称性を有し且つ第１破砕リング２２と同様にキー溝２３ａが１８０度ずれた位置に配置されているので、仮想中央面ＰＬ１２に対して第２破砕リング２３の一方側と他方側とを反転させた反転姿勢で第１シャフト２１に外装できるようになっている。反転姿勢では、図７に示すように第２基準歯２７ｅが仮想中央面ＰＬ１２に対して反転させた位置に配置させ、且つ２つの高歯２７ａが第２基準歯２７ｅの周方向他方側に並ぶように配置することができる。このように第２破砕リング２３を仮想中央面ＰＬ１２に対して反転させることによって、外周面において第２基準歯２７ｅを基準として第２高歯形成部位２８及び第２低歯形成部位２９をその順番で周方向他方に互い違いに配置することができる。 Further, since the second crushing ring 23 has rotational symmetry about the central axis and the key groove 23a is arranged at a position shifted by 180 degrees as in the first crushing ring 22, the virtual central plane PL12 In contrast, the first crushing ring 23 can be externally mounted on the first shaft 21 in an inverted posture in which one side and the other side are inverted. In the inverted posture, as shown in FIG. 7, the second reference teeth 27e are arranged at a position inverted with respect to the virtual central plane PL12, and the two high teeth 27a are arranged on the other circumferential side of the second reference teeth 27e. Can be arranged as follows. By reversing the second crushing ring 23 with respect to the virtual center plane PL12 in this way, the second high tooth formation site 28 and the second low tooth formation site 29 are in that order on the outer peripheral surface with the second reference tooth 27e as a reference. Can be arranged alternately in the other circumferential direction.
　このように構成されている２種類の破砕リング２２，２３の各々は、交互に且つ正規姿勢と反転姿勢とを替えながら第１シャフト２１に外装されている。即ち、第１シャフト２１には、図８に示すように複数の破砕リング２２，２３が外装されている。第１シャフト２１の最も他端側に第１破砕リング２２が正規姿勢で外装され、それに隣接するように第２破砕リング２３が正規姿勢で外装されている。これにより、正規姿勢の第２破砕リング２３Ｔは、第２基準歯２７ｅが正規姿勢の第１破砕リング２２Ｔの第１基準歯２４ｄに対して半ピッチｐ１/２ずれて配置されている。つまり、複数の破砕歯２７全体が第１破砕リング２２の複数の破砕歯２４全体に対して半ピッチｐ１/２ずれた状態で第２破砕リング２３Ｔが第１シャフト２１に外装されている。このように外装されている２つの破砕リング２２Ｔ，２３Ｔでは、第１高歯形成部位２５及び第２高歯形成部位２８が基本的に仮想中央面ＰＬ１１，ＰＬ１２より周方向一方側に配置されている。 Each of the two types of crushing rings 22 and 23 configured in this manner is externally mounted on the first shaft 21 while changing the normal posture and the reverse posture. That is, the first shaft 21 is externally provided with a plurality of crushing rings 22 and 23 as shown in FIG. The first crushing ring 22 is externally mounted in a normal posture on the most other end side of the first shaft 21, and the second crushing ring 23 is externally mounted in a normal posture so as to be adjacent thereto. Accordingly, the second crushing ring 23T in the normal posture is arranged such that the second reference teeth 27e are shifted by a half pitch p1 / 2 with respect to the first reference teeth 24d of the first crushing ring 22T in the normal posture. That is, the second crushing ring 23 </ b> T is externally mounted on the first shaft 21 in a state where the whole of the plurality of crushing teeth 27 is shifted by a half pitch p1 / 2 with respect to the whole of the plurality of crushing teeth 24 of the first crushing ring 22. In the two crushing rings 22T and 23T that are externally mounted in this way, the first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on one side in the circumferential direction from the virtual central planes PL11 and PL12. Yes.
　また、第１シャフト２１には、これら２つの破砕リング２２Ｔ，２３Ｔに隣接させて第１破砕リング２２が反転姿勢で外装され、それに隣接するように第２破砕リング２３が反転姿勢にて外装されている。このように反転姿勢で外装される２つの破砕リング２２Ｒ，２３Ｒでは、第１高歯形成部位２５及び第２高歯形成部位２８が基本的に仮想中央面ＰＬ１１，ＰＬ１２より周方向他方側に配置されている。つまり、反転姿勢の２つの破砕リング２２Ｒ，２３Ｒの第１高歯形成部位２５及び第２高歯形成部位２８と、正規姿勢の破砕リング２２Ｔ，２３Ｔの第１高歯形成部位２５及び第２高歯形成部位２８とは、仮想中央面ＰＬ１１，ＰＬ１２に対して反対側に夫々位置している。 In addition, the first crushing ring 22 is mounted on the first shaft 21 adjacent to the two crushing rings 22T and 23T in an inverted posture, and the second crushing ring 23 is mounted on the first shaft 21 in an inverted posture so as to be adjacent thereto. ing. Thus, in the two crushing rings 22R and 23R that are externally mounted in the inverted posture, the first high tooth forming portion 25 and the second high tooth forming portion 28 are basically arranged on the other side in the circumferential direction from the virtual central planes PL11 and PL12. Has been. That is, the first high-tooth formation site 25 and the second high-tooth formation site 28 of the two crushing rings 22R and 23R in the inverted posture and the first high-tooth formation site 25 and the second high of the crushing rings 22T and 23T in the normal posture. The tooth formation part 28 is located on the opposite side to the virtual central planes PL11 and PL12, respectively.
　更に、第１シャフト２１には、反転姿勢の２つの破砕リング２２Ｒ，２３Ｒに隣接させて正規姿勢の２つの破砕リング２２Ｔ，２３Ｔがその順番で外装され、更にその隣には反転姿勢の２つの破砕リング２２Ｒ，２３Ｒがその順番で外装されている。このように第１シャフト２１に複数の破砕リング２２Ｔ，２２Ｒ，２３Ｔ，２３Ｒを外装することによって第１ロール１５ａが構成されている。 Furthermore, the first shaft 21 is covered with two crushing rings 22T and 23T in the normal posture adjacent to the two crushing rings 22R and 23R in the reverse posture in that order, and next to the two crushing rings 22T and 23T in the reverse posture. The crushing rings 22R and 23R are packaged in that order. Thus, the 1st roll 15a is comprised by armoring the some crushing rings 22T, 22R, 23T, and 23R on the 1st shaft 21. As shown in FIG.
　このように構成されている第１ロール１５ａの外周面には、隣接する第１高歯形成部位２５及び第２高歯形成部位２８によって高歯形成部位３０Ｈが形成され、隣接する第１低歯形成部位２６及び第２低歯形成部位２９によって低歯形成部位３０Ｌが形成されている。高歯形成部位３０Ｈ及び低歯形成部位３０Ｌは、直交方向において仮想中央面ＰＬ１１，ＰＬ１２の一方側及び他方側に互い違いに配置される。これにより、第１ロール１５ａの外周面に高歯形成部位３０Ｈ及び低歯形成部位３０Ｌが千鳥状に配置される。また、第１ロール１５ａには、所定間隔をあけて搬送方向に隣接するように第２ロール１５ｂが配置されている。 On the outer peripheral surface of the first roll 15a configured in this way, a high tooth forming portion 30H is formed by the adjacent first high tooth forming portion 25 and the second high tooth forming portion 28, and the adjacent first low tooth A low tooth formation site 30 </ b> L is formed by the formation site 26 and the second low tooth formation site 29. The high tooth formation site 30H and the low tooth formation site 30L are alternately arranged on one side and the other side of the virtual central planes PL11 and PL12 in the orthogonal direction. Thereby, the high tooth formation part 30H and the low tooth formation part 30L are arrange | positioned on the outer peripheral surface of the 1st roll 15a in zigzag form. Further, the second roll 15b is disposed on the first roll 15a so as to be adjacent to the transport direction with a predetermined interval.
　第２ロール１５ｂは、第２シャフト３１と、複数の破砕リング３２，３３とを有している。第２シャフト３１は、第１シャフト２１と同様の形状を有している。即ち、第２シャフト３１は、直交方向に延在する円柱部材であり、その両端部近傍が図示しない軸受機構によって回転軸Ｌ２回りに回転可能に軸支されている。また、第２シャフト３１の一端部は、回転ユニット１７に連結されており、この回転ユニット１７によって回転軸Ｌ２回りに回転駆動されるようになっている。また、第２シャフト３１の外周面には、周方向に１８０度離して配置されている２つのキー３１ａ（係合片）が形成されている。このような形状を有する第２シャフト３１の外周面には、２種類の破砕リング３２，３３が複数個外装されている。 The second roll 15 b has a second shaft 31 and a plurality of crushing rings 32 and 33. The second shaft 31 has the same shape as the first shaft 21. That is, the second shaft 31 is a cylindrical member extending in the orthogonal direction, and the vicinity of both ends thereof is pivotally supported around a rotation axis L2 by a bearing mechanism (not shown). One end of the second shaft 31 is connected to the rotation unit 17 and is driven to rotate about the rotation axis L2 by the rotation unit 17. In addition, two keys 31 a (engagement pieces) arranged 180 degrees apart in the circumferential direction are formed on the outer peripheral surface of the second shaft 31. A plurality of two types of crushing rings 32 and 33 are externally mounted on the outer peripheral surface of the second shaft 31 having such a shape.
　図９に示す第１破砕リング３２は、直交方向に延在する大略円筒状の部材であり、その内周面に２つのキー溝３２ａを有している。被係合溝であるキー溝３２ａは、第２シャフト３１のキー３１ａと同じ形状を有しており、第１破砕リング３２の一端から他端まで延在している。また、キー溝３２ａは、周方向において１８０度離して配置されており、第１破砕リング３２を第２シャフト３１に外装する際にキー溝３２ａにキー３１ａが嵌るようになっている。これにより、第１破砕リング３２は、第２シャフト３１に対して相対回転しないように外装されている。また、第１破砕リング３２の外周面には、複数の破砕歯３４が形成されている。本実施形態では、第１破砕リング３２の外周面には、１８本の破砕歯３４が形成されており、１８本の破砕歯３４は、等ピッチｐ２で配置されている。各破砕歯３４は、半径方向外方に突出し、且つ第１破砕リング３２の一端から他端まで延在している。また、各破砕歯３４は、その歯たけが同一になるように第１破砕リング３２の外周面に形成されている。 The first crushing ring 32 shown in FIG. 9 is a substantially cylindrical member extending in the orthogonal direction, and has two key grooves 32a on the inner peripheral surface thereof. The key groove 32a, which is the engaged groove, has the same shape as the key 31a of the second shaft 31, and extends from one end of the first crushing ring 32 to the other end. Further, the key grooves 32 a are arranged 180 degrees apart in the circumferential direction, and the keys 31 a are fitted into the key grooves 32 a when the first crushing ring 32 is mounted on the second shaft 31. Thereby, the first crushing ring 32 is packaged so as not to rotate relative to the second shaft 31. A plurality of crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32. In the present embodiment, 18 crushing teeth 34 are formed on the outer peripheral surface of the first crushing ring 32, and the 18 crushing teeth 34 are arranged at an equal pitch p2. Each crushing tooth 34 protrudes radially outward and extends from one end of the first crushing ring 32 to the other end. In addition, each crushing tooth 34 is formed on the outer peripheral surface of the first crushing ring 32 so that the teeth are the same.
　更に詳細に説明すると、複数の破砕歯３４のうちの１つの歯である第１基準歯３４ａが第１破砕リング３２の中心軸（即ち、回転軸Ｌ２）と一方のキー溝３２ａの中心とを含む仮想中央面ＰＬ２１上に位置しており、他の破砕歯３４がこの第１基準歯３４ａを基準にして等ピッチｐ２で並べて第１破砕リング３２の外周面に配置されている。このように構成されている第１破砕リング３２は、その中心軸を中心とする回転対称性を有するように形成されている。第１破砕リング３２は、第２シャフト３１の一方のキー３１ａの半径方向外方の延長線上に第１基準歯３４ａが位置するように第２シャフト３１に外装されている。 More specifically, the first reference tooth 34a, which is one of the plurality of crushing teeth 34, connects the center axis of the first crushing ring 32 (that is, the rotation axis L2) and the center of one key groove 32a. The other crushing teeth 34 are arranged on the outer peripheral surface of the first crushing ring 32 side by side at an equal pitch p2 on the basis of the first reference teeth 34a. The 1st crushing ring 32 comprised in this way is formed so that it may have rotational symmetry centering on the central axis. The first crushing ring 32 is externally mounted on the second shaft 31 such that the first reference teeth 34 a are positioned on the radially outward extension line of one key 31 a of the second shaft 31.
　図１０に示す第２破砕リング３３は、直交方向に延在する大略円筒状の部材であり、第１破砕リング３２と略同じ構成を有している。即ち、第２破砕リング３３は、その内周面に２つのキー溝３３ａ（被係合溝）を有し、及び外周面に複数の破砕歯３５を有している。複数の破砕歯３５は、第１破砕リング３２と同様に同じ歯たけになるように第２破砕リング３３の外周面に形成されている。本実施形態では、第２破砕リング３３の外周面には、１８本の破砕歯３５が形成されており、１８本の破砕歯３５は、等ピッチｐ２で配置されている。また、第２破砕リング３３は、複数の破砕歯３５のうちの１つの歯であって第１基準歯３４ａに対応する第２基準歯３５ａを有しており、第２基準歯３５ａが第２破砕リング３３の中心軸（即ち、回転軸Ｌ２）と一方のキー溝３３ａの中心とを含む仮想中央面ＰＬ２２に対してピッチｐ２の１／３倍ずれて配置されている。つまり、第２破砕リング３３の複数の歯全体が第１破砕リング３２の複数の破砕歯３４に対して回転軸Ｌ２回りにピッチｐ２の１／３倍ずれて配置されている。このような形状を有する第２破砕リング３３は、仮想中央面ＰＬ２２に対して第２基準歯３５ａが周方向一方側に位置する正規姿勢で第２シャフト３１に正規姿勢で外装することができる。 The second crushing ring 33 shown in FIG. 10 is a substantially cylindrical member extending in the orthogonal direction and has substantially the same configuration as the first crushing ring 32. That is, the second crushing ring 33 has two key grooves 33a (engaged grooves) on the inner peripheral surface thereof and a plurality of crushing teeth 35 on the outer peripheral surface thereof. The plurality of crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33 so as to have the same tooth depth as the first crushing ring 32. In the present embodiment, 18 crushing teeth 35 are formed on the outer peripheral surface of the second crushing ring 33, and the 18 crushing teeth 35 are arranged at an equal pitch p2. The second crushing ring 33 has a second reference tooth 35a corresponding to the first reference tooth 34a, which is one of the plurality of crushing teeth 35, and the second reference tooth 35a is a second tooth. The crushing ring 33 is arranged so as to be shifted by 1/3 times the pitch p2 with respect to the virtual central plane PL22 including the center axis of the crushing ring 33 (that is, the rotation axis L2) and the center of the one key groove 33a. In other words, the entire plurality of teeth of the second crushing ring 33 are arranged with a shift of 1/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32. The second crushing ring 33 having such a shape can be externally mounted on the second shaft 31 in a normal posture in which the second reference teeth 35a are positioned on one side in the circumferential direction with respect to the virtual center plane PL22.
　また、第２破砕リング３３は、その中心軸を中心とする回転対称性を有し且つキー溝３３ａが１８０度ずれた位置に配置されているので、仮想中央面ＰＬ２２に対して第２破砕リング３３の一方側と他方側とを反転させた反転姿勢で第２シャフト３１に外装できるようになっている。これにより、図１１に示すように第２基準歯３５ａを仮想中央面ＰＬ２２に対して反転させた位置に配置することができ、第２基準歯３５ａが仮想中央面ＰＬ２２に対して周方向他方側にピッチｐ２の１／３ずれて配置される。つまり、第２破砕リング３３の複数の破砕歯３５全体が第１破砕リング３２の複数の破砕歯３４に対して回転軸Ｌ２回りにピッチｐ２の２／３倍ずれて配置されている。このように第２破砕リング３３を仮想中央面ＰＬ２２に対して反転させることによって、複数の破砕歯３５全体が第１破砕リング３２の複数の破砕歯３４に対して回転軸Ｌ２回りにピッチｐ２の２／３倍ずれている第２破砕リング３３にすることができる。 Further, since the second crushing ring 33 has rotational symmetry about its central axis and the key groove 33a is disposed at a position shifted by 180 degrees, the second crushing ring 33 is located with respect to the virtual central plane PL22. The second shaft 31 can be externally mounted in an inverted posture in which one side and the other side of 33 are inverted. As a result, as shown in FIG. 11, the second reference teeth 35a can be disposed at a position inverted with respect to the virtual central plane PL22, and the second reference teeth 35a are arranged on the other side in the circumferential direction with respect to the virtual central plane PL22. Are shifted by 1/3 of the pitch p2. That is, the entire plurality of crushing teeth 35 of the second crushing ring 33 are arranged with a shift of 2/3 times the pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32. Thus, by inverting the second crushing ring 33 with respect to the virtual central plane PL22, the plurality of crushing teeth 35 have a pitch p2 around the rotation axis L2 with respect to the plurality of crushing teeth 34 of the first crushing ring 32. It can be set as the 2nd crushing ring 33 which has shifted | deviated 2/3 times.
　このように構成されている２種類の破砕リング３２，３３の各々は、各破砕リング３２，３３に形成される破砕歯３４，３５がピッチｐ２の１／３倍ずつずれて配置されるように第２シャフト３１に外装されている。即ち、第２シャフト３１には、図１２に示すように複数の破砕リング３２，３３が外装されている。第２シャフト３１の最も他端側には、第１破砕リング３２が外装されており、第１基準歯３４ａが第２シャフト３１のキー３１ａの半径方向外方に位置している。 In each of the two types of crushing rings 32 and 33 configured as described above, the crushing teeth 34 and 35 formed on the crushing rings 32 and 33 are arranged so as to be shifted by 1/3 times the pitch p2. The second shaft 31 is packaged. That is, the second shaft 31 is externally provided with a plurality of crushing rings 32 and 33 as shown in FIG. A first crushing ring 32 is externally provided on the most other end side of the second shaft 31, and the first reference teeth 34 a are located radially outward of the key 31 a of the second shaft 31.
　また、第２シャフト３１には、この第１破砕リング３２に隣接するように第２破砕リング３３が正規姿勢で外装されている。正規姿勢の第２破砕リング３３Ｔは、第２基準歯３５ａが第１破砕リング３２の第１基準歯３４ａに対して周方向一方にピッチｐ２の１／３倍ずれて配置されている。つまり、複数の破砕歯３５全体が第１破砕リング３２の破砕歯３４全体に対してピッチｐ２の１／３倍ずれた状態で第２破砕リング３３Ｔが第２シャフト３１に外装されている。また、正規姿勢の第２破砕リング３３Ｔの隣には、第２破砕リング３３が反転姿勢で第２シャフト３１に外装されている。反転姿勢の第２破砕リング３３Ｒは、第２基準歯３５ａが第１破砕リング３２の第１基準歯３４ａに対して周方向他方にピッチｐ２の１／３倍ずれて配置されている。つまり、複数の破砕歯３５全体が第１破砕リング３２の破砕歯３４全体に対してピッチｐ２の２／３倍ずれた状態で第２破砕リング３３Ｒが第２シャフト３１に外装されている。更に、反転姿勢の第２破砕リング３３Ｒの隣には、第１破砕リング３２、正規姿勢の第２破砕リング３３Ｔ、及び反転姿勢の第２破砕リング３３Ｒがその順で繰り返し外装されている。このように複数の破砕リング３２，３３Ｔ，３３Ｒを第２シャフト３１に外装することによって第２ロール１５ｂが構成されている。 Further, a second crushing ring 33 is externally mounted on the second shaft 31 in a normal posture so as to be adjacent to the first crushing ring 32. The second crushing ring 33T in the normal posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 </ b> T is externally mounted on the second shaft 31 in a state in which the entire crushing teeth 35 are shifted from the whole crushing teeth 34 of the first crushing ring 32 by 1/3 times the pitch p <b> 2. Further, next to the second crushing ring 33T in the normal posture, the second crushing ring 33 is externally mounted on the second shaft 31 in a reversed posture. The second crushing ring 33R in the inverted posture is arranged such that the second reference teeth 35a are shifted from the first reference teeth 34a of the first crushing ring 32 in the other circumferential direction by 1/3 times the pitch p2. That is, the second crushing ring 33 </ b> R is externally mounted on the second shaft 31 in a state where the whole of the plurality of crushing teeth 35 is shifted by 2/3 times the pitch p <b> 2 with respect to the entire crushing teeth 34 of the first crushing ring 32. Further, the first crushing ring 32, the normal crushing second crushing ring 33T, and the inverted crushing second crushing ring 33R are repeatedly packaged in that order next to the inverted crushing second crushing ring 33R. Thus, the 2nd roll 15b is comprised by mounting | wearing the 2nd shaft 31 with the some crushing rings 32, 33T, and 33R.
　このように構成されている第２ロール１５ｂの外周面には、軸線方向、即ち直交方向に隣接する破砕歯３４，３５によって歯列３６が形成されている。なお、この歯列３６は、隣接する破砕歯３４がピッチｐ２の１／３倍ずれて配置されているので、第２ロール１５ｂの外周面において周方向一方にねじれるようにして直交方向に延在している（例えば、１つの歯列３６として図３及び図１２の第２ロール１５ｂの網掛け部分参照）。なお、第２ロール１５ｂに隣接して配置される第１ロール１５ａもまた、軸線方向、即ち直交方向に隣接し且つ周方向他方に半ピッチｐ１／２ずれて配置されている破砕歯２４，２７によって歯列が形成され、この歯列は第１ロール１５ａの外周面において周方向他方にねじれるようにして直交方向に延在している。 A tooth row 36 is formed on the outer peripheral surface of the second roll 15b thus configured by crushing teeth 34, 35 adjacent to each other in the axial direction, that is, the orthogonal direction. Note that, since the adjacent crushing teeth 34 are arranged with a shift of 1/3 times the pitch p2, the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface of the second roll 15b. (For example, see the shaded portion of the second roll 15b in FIGS. 3 and 12 as one tooth row 36). The first roll 15a disposed adjacent to the second roll 15b is also adjacent to the axial direction, that is, the orthogonal direction, and is disposed with a half pitch p1 / 2 shifted to the other circumferential direction. A tooth row is formed by this, and this tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a.
　なお、前述の通り、第３ロール１５ｃは、第１ロール１５ａと同様に構成され、また第４ロール１５ｄは、第２ロール１５ｂと同様に構成されている。 As described above, the third roll 15c is configured in the same manner as the first roll 15a, and the fourth roll 15d is configured in the same manner as the second roll 15b.
　このように構成される４つのロール１５ａ～１５ｄは、前述の通り搬送方向に所定の間隔をあけて配置されており、隣接するロール１５ａ～１５ｄ同士の間に隙間Ｓ１～Ｓ３が空いている。隙間Ｓ１～Ｓ３の幅（即ち、搬送方向の長さ）は、ロール１５ａ～１５ｄが回転し且つ各ロール１５ａ～１５ｄの外周面に破砕歯２４，２７，３４，３５が形成されているので、各破砕歯同士２４，２７，３４，３５の位置に応じて変化する。即ち、高歯２４ａ，２７ａと破砕歯３４，３５が突き合わさった時に隙間Ｓ１～Ｓ３の幅が最も狭く（最小幅）、歯底同士が向き合った時に隙間Ｓ１～Ｓ３の幅が最も広くなる（最大幅）。隙間Ｓ１～Ｓ３の幅を狭くしていくと、破砕後のセメントクリンカの粒径を小さくすることができるが破砕時のロール１５ａ～１５ｄに作用する負荷が大きくなる。また、隙間Ｓ１～Ｓ３の幅を広くすると、破砕時の負荷が小さくなるが粒径の大きなセメントクリンカが下方に排出される。このことを踏まえて、隙間Ｓ１～Ｓ３の最小幅は、破砕時のロール１５ａ～１５ｄに作用する負荷の許容量に応じて設定され、隙間Ｓ１～Ｓ３の最大幅は、セメントクリンカの許容粒径に応じて設定されるようになっている。更に、これらの最小幅及び最大幅に応じて、隣接するロール１５ａ～１５ｄの間隔、各破砕歯２４，２７，３４，３５の歯たけが設定されるようになっている。 The four rolls 15a to 15d configured in this way are arranged at a predetermined interval in the transport direction as described above, and gaps S1 to S3 are vacant between adjacent rolls 15a to 15d. The widths of the gaps S1 to S3 (that is, the length in the transport direction) are such that the rolls 15a to 15d rotate and the crushing teeth 24, 27, 34, and 35 are formed on the outer peripheral surfaces of the rolls 15a to 15d. It changes according to the position of each crushing tooth 24,27,34,35. That is, the gaps S1 to S3 have the smallest width (minimum width) when the high teeth 24a and 27a and the crushing teeth 34 and 35 face each other, and the gaps S1 to S3 have the largest width when the tooth bottoms face each other ( Maximum width). As the widths of the gaps S1 to S3 are reduced, the particle size of the cement clinker after crushing can be reduced, but the load acting on the rolls 15a to 15d during crushing increases. Further, when the widths of the gaps S1 to S3 are widened, the load at the time of crushing is reduced, but a cement clinker having a large particle size is discharged downward. Based on this, the minimum width of the gaps S1 to S3 is set according to the allowable amount of load acting on the rolls 15a to 15d during crushing, and the maximum width of the gaps S1 to S3 is the allowable particle size of the cement clinker. It is set according to. Further, according to these minimum width and maximum width, the interval between the adjacent rolls 15a to 15d and the tooth depth of each crushing tooth 24, 27, 34, 35 are set.
　このように構成されている４つのロール１５ａ～１５ｄは、各々の回転ユニット１７によって回転駆動されている。例えば、制御装置１８では、通常モードと高破砕モードとが選択可能になっている。通常モードでは、第１ロール１５ａが周方向他方に回転し、第２乃至第４ロール１５ｂ～１５ｄが周方向一方に回転しており、高破砕モードでは、第１ロール１５ａ及び第３ロール１５ｃが周方向他方に回転し、第２及び第４ロール１５ｂ，１５ｄが周方向一方に回転している。このように回転する４つのロール１５ａ～１５ｄは、クーラ装置１の先端から落下するセメントクリンカを受け、受けたセメントクリンカを許容粒径以下の粒径に破砕するようになっている。 The four rolls 15a to 15d configured as described above are rotationally driven by the respective rotation units 17. For example, in the control device 18, a normal mode and a high crushing mode can be selected. In the normal mode, the first roll 15a rotates in the other circumferential direction, and the second to fourth rolls 15b to 15d rotate in one circumferential direction. In the high crushing mode, the first roll 15a and the third roll 15c rotate. The second and fourth rolls 15b and 15d rotate in the other circumferential direction, and the second and fourth rolls 15b and 15d rotate in one circumferential direction. The four rolls 15a to 15d rotating in this way receive the cement clinker falling from the tip of the cooler device 1, and crush the received cement clinker to a particle size equal to or smaller than an allowable particle size.
　更に詳細に説明すると、通常モードでは、第２乃至第４ロール１５ｂ～１５ｄでは、落下してくるセメントクリンカを第１ロール１５ａの方へと送るようになっている。その際、第２乃至第４ロール１５ｂ～１５ｄでは、許容粒径以下の粒径のセメントクリンカが隙間Ｓ２，Ｓ３から落とされ、粒径の大きい大きな塊のセメントクリンカが第１ロール１５ａの方へと送られる。第１ロール１５ａは、第２ロール１５ｂと共に第１及び第２ロール１５ａ，１５ｂ上のセメントクリンカをそれらの間（即ち、隙間Ｓ１）に巻き込むように回転しており、前記セメントクリンカをそれらの間に巻き込むことで破砕するようになっている。破砕することで大きな塊のセメントクリンカが許容粒径以下の粒径のセメントクリンカとなって隙間Ｓ１から下方に落ちるようになっている。 More specifically, in the normal mode, the second to fourth rolls 15b to 15d are configured to send the falling cement clinker toward the first roll 15a. At that time, in the second to fourth rolls 15b to 15d, the cement clinker having a particle size equal to or smaller than the allowable particle size is dropped from the gaps S2 and S3, and a large lump of cement clinker having a larger particle size is directed to the first roll 15a. Sent. The first roll 15a rotates together with the second roll 15b so that the cement clinker on the first and second rolls 15a and 15b is caught between them (that is, the gap S1), and the cement clinker is interposed between them. It is designed to be crushed by being caught in. By crushing, a large lump of cement clinker becomes a cement clinker having a particle size equal to or smaller than the allowable particle size, and falls downward from the gap S1.
　他方、高破砕モードでは、第３ロール１５ｃもまた、第４ロール１５ｄと共に第３及び第４ロール１５ｃ，１５ｄ上のセメントクリンカをそれらの間（即ち、隙間Ｓ３）に巻き込むように回転し、前記セメントクリンカをそれらの間に巻き込むことで破砕するようになっている。このように、ロールクラッシャ１５において２カ所で破砕が行われるようになり、より多くのセメントクリンカを破砕して下方に落とすことができるようになっている。 On the other hand, in the high crushing mode, the third roll 15c also rotates to entrain the cement clinker on the third and fourth rolls 15c and 15d together with the fourth roll 15d (that is, the gap S3), The cement clinker is crushed by being caught between them. Thus, crushing is performed at two locations in the roll crusher 15, and more cement clinker can be crushed and dropped downward.
　このように構成されているロールクラッシャ１５の第１ロール１５ａ及び第３ロール１５ｃでは、回転時において破砕リング２２Ｔ，２２Ｒ，２３Ｔ，２３Ｒに作用する負荷は、破砕歯２４，２７によってセメントクリンカを破砕する際に大きくなり、それ以外の時には作用する負荷が小さくなる。第１ロール１５ａ及び第３ロール１５ｃでは、隣接する破砕歯２４，２７が互いに周方向に半ピッチｐ１／２ずれるように配置されているので、回転時において各破砕リング２２Ｔ，２２Ｒ，２３Ｔ，２３Ｒに作用する負荷が大きくなるタイミングを異ならしめることができる。つまり、回転時において各破砕リング２２Ｔ，２２Ｒ，２３Ｔ，２３Ｒの各々に負荷が作用するタイミングを互いにずらすことができる。これにより、第１ロール１５ａ及び第３ロール１５ｃに作用する負荷の経時変化を平準化することができ、その結果回転ユニット１７の負荷の経時変化を平準化することができる。 In the first roll 15a and the third roll 15c of the roll crusher 15 configured as described above, the load acting on the crushing rings 22T, 22R, 23T, and 23R during rotation causes the crushing teeth 24 and 27 to crush the cement clinker. The load that acts is reduced at other times. In the 1st roll 15a and the 3rd roll 15c, since adjacent crushing teeth 24 and 27 are arranged so as to be shifted from each other by a half pitch p1 / 2 in the circumferential direction, each crushing ring 22T, 22R, 23T, 23R is rotated. The timing at which the load acting on the load increases can be made different. That is, the timing at which the load acts on each of the crushing rings 22T, 22R, 23T, and 23R during rotation can be shifted from each other. Thereby, the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
　また、第１ロール１５ａ及び第３ロール１３ｃでは、各破砕リング２２，２３が異なる歯たけの破砕歯２４ａ～２４ｃ，２７ａ～２７ｃを有している。即ち、各破砕リング２２，２３には、高歯２４ａ，２７ａだけでなく低歯２４ｃ，２７ｃが形成されている。これによって、高歯２４ａ，２７ａでは挟めず破砕できない大きな塊のセメントクリンカを低歯２４ｃ，２７ｃで挟んで破砕することができる。これにより、第１ロール１５ａ及び第３ロール１５ｃ上に大きな塊のセメントクリンカが噛み込まれずに残ってしまうことを抑制することができる。 Further, in the first roll 15a and the third roll 13c, the crushing rings 22 and 23 have different tooth crushing teeth 24a to 24c and 27a to 27c, respectively. That is, not only the high teeth 24a and 27a but also the low teeth 24c and 27c are formed on the crushing rings 22 and 23, respectively. As a result, a large block of cement clinker that cannot be crushed without being pinched by the high teeth 24a, 27a can be crushed by being pinched by the low teeth 24c, 27c. Thereby, it can suppress that a large lump of cement clinker remains without being bitten on the first roll 15a and the third roll 15c.
　更に、第１ロール１５ａ及び第３ロール１５ｃでは、高歯形成部位３０Ｈの高歯２４ａ，２７ａでセメントクリンカを破砕する際に破砕リング２２，２３に作用する負荷がピークとなる。第１ロール１５ａ及び第３ロール１５ｃの外周面において高歯形成部位３０Ｈ及び低歯形成部位３０Ｌが千鳥状に配置されるので、第１ロール１５ａ及び第３ロール１５ｃの高歯２４ａ，２７ａが直交方向に隣接して並ぶことを防ぐことができる。これにより、第１ロール１５ａ及び第３ロール１５ｃに作用する負荷の経時変化を平準化することができ、その結果回転ユニット１７の負荷の経時変化を平準化することができる。 Furthermore, in the 1st roll 15a and the 3rd roll 15c, when crushing cement clinker with the high teeth 24a and 27a of the high tooth formation part 30H, the load which acts on the crushing rings 22 and 23 becomes a peak. Since the high tooth forming portion 30H and the low tooth forming portion 30L are arranged in a staggered manner on the outer peripheral surfaces of the first roll 15a and the third roll 15c, the high teeth 24a and 27a of the first roll 15a and the third roll 15c are orthogonal to each other. It is possible to prevent them from being arranged adjacent to each other in the direction. Thereby, the time-dependent change of the load which acts on the 1st roll 15a and the 3rd roll 15c can be leveled, As a result, the time-dependent change of the load of the rotation unit 17 can be leveled.
　また、第１ロール１５ａ及び第３ロール１５ｃは、第１シャフト２１に第１破砕リング２２及び第２破砕リング２３を正規姿勢で外装し、その隣りに第１破砕リング２２及び第２破砕リング２３を反転姿勢で第１シャフト２１に外装し、更にそれを繰り返すことで製造される。従って、第１ロール１５ａ及び第３ロール１５ｃは、２種類の破砕リング２２，２３によって製造することができる。それ故、４種類の破砕リング２２Ｔ，２２Ｒ，２３Ｔ，２３Ｒを使用するが、それらを製造する際の型の種類を２つに抑えることができ、製造コストを低減することができる。 The first roll 15a and the third roll 15c have the first crushing ring 22 and the second crushing ring 23 mounted on the first shaft 21 in a normal posture, and the first crushing ring 22 and the second crushing ring 23 are adjacent to the first crushing ring 22 and the second crushing ring 23. Is mounted on the first shaft 21 in an inverted posture, and is further repeated. Therefore, the first roll 15 a and the third roll 15 c can be manufactured by the two types of crushing rings 22 and 23. Therefore, although four types of crushing rings 22T, 22R, 23T, and 23R are used, the types of molds for manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
　また、第２ロール１５ｂ及び第４ロール１５ｄでも隣接する破砕歯３４，３５が互いに周方向にピッチｐ２の１／３倍ずれるように配置されているので、回転時において各破砕リング３２，３３Ｔ，３３Ｒに作用する負荷が大きくなるタイミングを異ならしめることができる。つまり、回転時において各破砕リング３２，３３Ｔ，３３Ｒの各々に負荷が作用するタイミングを互いにずらすことができる。これにより、第２ロール１５ｂ及び第４ロール１５ｄに作用する負荷の経時変化を平準化することができ、これによって回転ユニット１７の負荷の経時変化を平準化することができる。 Further, since the adjacent crushing teeth 34 and 35 are arranged so as to be shifted from each other by 1/3 times the pitch p2 in the circumferential direction also in the second roll 15b and the fourth roll 15d, each crushing ring 32, 33T, The timing at which the load acting on 33R increases can be made different. That is, the timing at which a load acts on each of the crushing rings 32, 33T, and 33R during rotation can be shifted from each other. Thereby, the time-dependent change of the load which acts on the 2nd roll 15b and the 4th roll 15d can be leveled, and, thereby, the time-dependent change of the load of the rotation unit 17 can be leveled.
　また、第２ロール１５ｂ及び第４ロール１５ｄでは、その外周面において歯列３６が周方向一方にねじれるようにして直交方向に延在している（図３及び１２の第２ロール１５ｂの網掛け部分参照）。それ故、第２ロール１５ｂ及び第４ロール１５ｄを夫々回転させた際、隙間Ｓ１～Ｓ３から落ちずにロール１５ｂ，１５ｄ上に残った大きな塊のセメントクリンカを直交方向一方側（例えば、第２シャフト３１の他端部側）に送ることができる。このようにセメントクリンカを送ることで他の塊のセメントクリンカと衝突させて、塊のセメントクリンカを粉砕させることができる。また、セメントクリンカを送ることによって、ロール１５ｂ，１５ｄ上に残る塊のセメントクリンカをうまく噛み込むことができる隙間Ｓ１～Ｓ３に案内することができ、大きな塊のセメントクリンカであっても上手く噛み込むことができる。 Further, in the second roll 15b and the fourth roll 15d, the tooth row 36 extends in the orthogonal direction so as to be twisted in one circumferential direction on the outer peripheral surface (the hatching of the second roll 15b in FIGS. 3 and 12). Part reference). Therefore, when the second roll 15b and the fourth roll 15d are rotated, large cement clinker remaining on the rolls 15b and 15d without falling from the gaps S1 to S3 is moved to one side in the orthogonal direction (for example, the second roll 15b). The other end side of the shaft 31 can be sent. By sending the cement clinker in this way, the cement clinker of the lump can be crushed by colliding with the cement clinker of another lump. In addition, by sending cement clinker, it is possible to guide to the gaps S1 to S3 where the cement clinker remaining on the rolls 15b and 15d can be well bitten. be able to.
　なお、第１ロール１５ａでも、直交方向に隣接する破砕歯２４，２７が周方向他方に半ピッチｐ１／２ずれて配置されているおり、このずれた破砕歯２４，２７によって歯列が形成される。この歯列は、第１ロール１５ａの外周面において周方向他方にねじれるようにして直交方向に延在している。それ故、第１ロール１５ａを周方向他方に回転させることで、この歯列によってロール１５ａ上に残った大きな塊のセメントクリンカを直交方向一方側に送ることができ、第２及び第４ロール１５ｂ，１５ｄの歯列３６と同様の作用効果を奏している。 Also in the first roll 15a, the crushing teeth 24 and 27 adjacent in the orthogonal direction are arranged with a half pitch p1 / 2 shifted to the other circumferential direction, and a tooth row is formed by the shifted crushing teeth 24 and 27. The This tooth row extends in the orthogonal direction so as to be twisted in the other circumferential direction on the outer peripheral surface of the first roll 15a. Therefore, by rotating the first roll 15a in the other circumferential direction, a large lump of cement clinker remaining on the roll 15a can be sent to one side in the orthogonal direction by this tooth row, and the second and fourth rolls 15b , 15d has the same effect as the tooth row 36.
　また、第２及び第４ロール１５ｂ，１５ｄで、第２シャフト３１に第１破砕リング３２を外装し、その隣りに正規姿勢の第２破砕リング３３Ｔ及び反転姿勢の第２破砕リング３３Ｒをその順で第２シャフト３１外装し、それを繰り返すことで製造される。従って、第２ロール１５ｂ及び第４ロール１５ｄは、２種類の破砕リング３２，３３によって製造することができる。それ故、３種類の破砕リング３２，３３Ｔ，３３Ｒを使用するが、それらを製造する際の型の種類を２つに抑えることができ、製造コストを低減することができる。 In addition, the second crushing ring 32 is mounted on the second shaft 31 with the second and fourth rolls 15b and 15d, and the second crushing ring 33T in the normal posture and the second crushing ring 33R in the inverted posture are arranged next to the first crushing ring 32 in that order. And the second shaft 31 is packaged and manufactured by repeating it. Therefore, the 2nd roll 15b and the 4th roll 15d can be manufactured by two types of crushing rings 32 and 33. FIG. Therefore, although three types of crushing rings 32, 33T, and 33R are used, the number of types of molds when manufacturing them can be suppressed to two, and the manufacturing cost can be reduced.
　また、クーラ装置１のロールクラッシャ１５では、第１乃至第４ロール１５ａ～１５ｄがこの順で並べて配置されており、隣接するロール１５ａ～１５ｄが異なる種類のロールとなるように配置されている。そうすることで、回転時における隙間Ｓ１～Ｓ３において突き合わされる部位を多様化させることができる。例えば、高歯２４ａと歯底、低歯２４ｃと破砕歯３４、及び低歯２４ｃと歯底等を突合せることができる。これにより、破砕リング２２，２３，３２，３３に作用する負荷の大きさの経時変化を更に平準化することができ、これによって回転ユニット１７の負荷の経時変化を平準化することができる。 Also, in the roll crusher 15 of the cooler device 1, the first to fourth rolls 15a to 15d are arranged in this order, and the adjacent rolls 15a to 15d are arranged to be different types of rolls. By doing so, it is possible to diversify the parts to be faced in the gaps S1 to S3 during rotation. For example, the high tooth 24a and the tooth bottom, the low tooth 24c and the crushing tooth 34, the low tooth 24c and the tooth bottom, and the like can be matched. Thereby, the temporal change in the magnitude of the load acting on the crushing rings 22, 23, 32, 33 can be further leveled, whereby the temporal change in the load of the rotating unit 17 can be leveled.
　＜その他の実施形態＞
　本実施形態のクーラ装置１では、隣接するロール１５ａ～１５ｄ同士が異なる種類のロールとなるように４つのロール１５ａ～１５ｄが配置されているが、全て同じロールを用いてもよい。例えば、第１ロール１５ａと同じ構造のロールを４つのロールに採用してもよく、第２ロール１５ｂと同じ構造のロールを４つのロール１５ａ～１５ｄに採用してもよい。また、破砕時における４本のロール１５ａ～１５ｄの回転制御モードについて、前述するような通常モード及び高破砕モードに限定されず、異なる回転制御モードで回転させるようにしてもよい。 <Other embodiments>
In the cooler device 1 of the present embodiment, the four rolls 15a to 15d are arranged so that the adjacent rolls 15a to 15d are different types of rolls, but the same roll may be used. For example, a roll having the same structure as the first roll 15a may be adopted for the four rolls, and a roll having the same structure as the second roll 15b may be adopted for the four rolls 15a to 15d. Further, the rotation control mode of the four rolls 15a to 15d at the time of crushing is not limited to the normal mode and the high crushing mode as described above, and may be rotated in different rotation control modes.
　また、隣接する破砕歯２４，２７，３４，３５同士がピッチの１／２倍又は１／３倍ずつずれている、そのずれ量はピッチの１／４倍であってもよい。即ち、隣接する破砕歯２４，２７，３４，３５のずれ量がピッチの１／ｎ倍（ｎ：整数）であればよい。このように、ピッチの１／ｎ倍ずらすことによって、第１基準歯に対して第２基準歯が周方向に３６０／（ｎ×Ｎ）（Ｎ：第２破砕リングの歯数）度ずれて配置されることになる。これにより、第２破砕リングを反転させると、第１破砕リングの破砕歯に対して３６０×（ｎ－１）／（ｎ×Ｎ）度ずれて破砕歯が配置される破砕リング（即ち、ピッチの（ｎ－１）／ｎ倍ずつ前記周方向一方に破砕歯がずれている破砕リング）として用いることができる。それ故、破砕リングを製造するための型の種類を使用される破砕リングの種類よりも少なくすることができ、製造コストを低減することができる。 Further, the adjacent crushing teeth 24, 27, 34, and 35 are shifted from each other by 1/2 times or 1/3 times the pitch, and the shift amount may be 1/4 times the pitch. That is, it is only necessary that the amount of deviation between the adjacent crushing teeth 24, 27, 34, and 35 is 1 / n times the pitch (n: integer). Thus, by shifting 1 / n times the pitch, the second reference tooth is shifted 360 / (n × N) (N: the number of teeth of the second crushing ring) in the circumferential direction with respect to the first reference tooth. Will be placed. Thereby, when the second crushing ring is inverted, the crushing ring in which the crushing teeth are arranged with a shift of 360 × (n−1) / (n × N) degrees with respect to the crushing teeth of the first crushing ring (that is, the pitch) (N-1) / n times of the crushing ring in which crushing teeth are shifted to one side in the circumferential direction). Therefore, the type of mold for manufacturing the crushing ring can be made smaller than the type of crushing ring used, and the manufacturing cost can be reduced.
　また、本実施形態において、第１ロール１５ａ及び第３ロール１５ｃでは、各破砕歯２４，２７の歯面の位置を変えることによって隙間Ｓ１～Ｓ３の幅を変えているが、歯底の位置を変えることによって隙間Ｓ１～Ｓ３の幅を変えるようにしてもよい。また、各ロール１５ａ～１５ｄでは、シャフト２１，３１にキー２１ａ，３１ａが形成され、破砕リング２２，２３，３２，３３にキー溝２２ａ，２３ａ，３２ａ，３３ａが形成されているが、シャフトにキー溝が形成されて破砕リングにキーが形成されてもよい。 In the present embodiment, in the first roll 15a and the third roll 15c, the widths of the gaps S1 to S3 are changed by changing the positions of the tooth surfaces of the crushing teeth 24 and 27. The width of the gaps S1 to S3 may be changed by changing. Further, in each of the rolls 15a to 15d, the keys 21a and 31a are formed on the shafts 21 and 31, and the key grooves 22a, 23a, 32a and 33a are formed on the crushing rings 22, 23, 32 and 33. A keyway may be formed and a key may be formed in the crushing ring.
　また、複数の破砕リング２２，２３を順番に配置しているが、複数の破砕リングのうち少なくとも１つ異なる配置がされている破砕歯を有する破砕リングを用いるようにしてもよい。この場合でも、少なくとも１つの破砕リングにて作用する負荷が大きくなるタイミングをずらすことができるので、負荷の経時変化の平準化に有用である。 Further, although the plurality of crushing rings 22 and 23 are arranged in order, a crushing ring having crushing teeth in which at least one different arrangement among the plurality of crushing rings may be used. Even in this case, the timing at which the load acting on at least one crushing ring becomes large can be shifted, which is useful for leveling the load with time.
　また、第１ロール１５ａ及び第３ロール１５ｃの高歯形成部位３０Ｈ及び低歯形成部位３０Ｌもまた、必ずしも千鳥状に配置されている必要はなく、縞状に配置されていてもよい。また、高歯形成部位３０Ｈ及び低歯形成部位３０Ｌがランダムに配置さていてもよい。 Also, the high tooth forming part 30H and the low tooth forming part 30L of the first roll 15a and the third roll 15c are not necessarily arranged in a staggered manner, and may be arranged in a striped manner. Moreover, the high-tooth formation part 30H and the low-tooth formation part 30L may be arrange | positioned at random.
　１　クーラ装置
　１５　ロールクラッシャ
　１５ａ　第１ロール
　１５ｂ　第２ロール
　１５ｃ　第３ロール
　１５ｄ　第４ロール
　１７　回転ユニット
　２１　第１シャフト
　２１ａ　キー
　２２　第１破砕リング
　２２ａ　キー溝
　２３　第２破砕リング
　２３ａ　キー溝
　２４　破砕歯
　２４ａ　高歯
　２４ｃ　低歯
　２４ｄ　第１基準歯
　２５　第１高歯形成部位
　２６　第１低歯形成部位
　２７　破砕歯
　２７ａ　高歯
　２７ｃ　低歯
　２７ｅ　第２基準歯
　２８　第２高歯形成部位
　２９　第２低歯形成部位
　３０Ｈ　高歯形成部位
　３０Ｌ　低歯形成部位
　３１　第２シャフト
　３１ａ　キー
　３２　第１破砕リング
　３２ａ　キー溝
　３３　第２破砕リング
　３３ａ　キー溝
　３４　破砕歯
　３４ａ　第１基準歯
　３５　破砕歯
　３５ａ　第２基準歯
　３６　歯列 DESCRIPTION OF SYMBOLS 1 Cooler apparatus 15 Roll crusher 15a 1st roll 15b 2nd roll 15c 3rd roll 15d 4th roll 17 Rotating unit 21 1st shaft 21a Key 22 1st crushing ring 22a Keyway 23 2nd crushing ring 23a Keyway 24 Crushing tooth 24a high tooth 24c low tooth 24d first reference tooth 25 first high tooth formation part 26 first low tooth formation part 27 crushing tooth 27a high tooth 27c low tooth 27e second reference tooth 28 second high tooth formation part 29 second low Tooth forming part 30H High tooth forming part 30L Low tooth forming part 31 Second shaft 31a Key 32 First crushing ring 32a Key groove 33 Second crushing ring 33a Key groove 34 Crushing tooth 34a First reference tooth 35 Crushing tooth 35a Second reference Teeth 36 dentition

Claims (7)

  1. 　粒状搬送物を搬送しながら冷却するクーラ装置において、前記粒状搬送物を破砕するためのロールクラッシャであって、
    　互いに隙間をあけて搬送方向に並設され、且つ前記搬送方向に直交し且つ互いに平行する軸線の回りに回転ユニットによって夫々回転されて前記粒状搬送物を破砕する複数のロールを備え、
    　前記複数のロールのうちの少なくとも１つのロールは、負荷低減ロールであり、
    　前記負荷低減ロールは、複数の破砕リングを有し、
    　　前記複数の破砕リングの各々は、周方向に等間隔をあけて配置されている複数の破砕歯を外周面に有し、
    　　前記複数の破砕リングのうち少なくとも１つの前記複数の破砕歯は、隣接する前記破砕リングの前記複数の破砕歯に対して前記周方向にずらして配置されている、クーラ装置のロールクラッシャ。     In a cooler that cools while conveying a granular conveyed product, a roll crusher for crushing the granular conveyed item,
    A plurality of rolls arranged in parallel in the transport direction with a gap between each other, and rotated by rotation units around the axes orthogonal to the transport direction and parallel to each other to crush the granular transported material,
    At least one of the plurality of rolls is a load reducing roll;
    The load reducing roll has a plurality of crushing rings,
    Each of the plurality of crushing rings has a plurality of crushing teeth arranged on the outer peripheral surface at equal intervals in the circumferential direction,
    The roll crusher of the cooler device in which at least one of the plurality of crushing teeth among the plurality of crushing rings is arranged shifted in the circumferential direction with respect to the plurality of crushing teeth of the adjacent crushing rings.
  2. 　前記複数の破砕歯は、予め定められたピッチで前記破砕リングの外周面に配置され、前記軸線が延在する軸線方向に隣接する前記破砕リングの前記複数の破砕歯に対して前記ピッチの１／ｎ倍（ｎ：２以上の整数）ずつ周方向一方にずれるように配置されている、請求項１に記載のクーラ装置のロールクラッシャ。 The plurality of crushing teeth are arranged on the outer peripheral surface of the crushing ring at a predetermined pitch, and the pitch of the plurality of crushing teeth is 1 with respect to the plurality of crushing teeth of the crushing ring adjacent in the axial direction in which the axis extends. The roll crusher of the cooler apparatus of Claim 1 arrange | positioned so that it may slip | deviate to the circumferential direction one by every / n times (n: integer more than 2).
  3. 　前記負荷低減ロールは、前記軸線方向に延在し、且つ前記回転ユニットによって前記軸線回りに回転させられるシャフトを有し、
    　前記シャフトは、前記軸線方向に延在し且つその外周面に互いに係合する係合片及び被係合溝のいずれか一方を有し、
    　前記複数の破砕リングは、前記係合片及び前記被係合溝のいずれか他方を内周面に有し、前記係合片を前記被係合溝に係合させることで前記周方向に相対変位不能に前記シャフトに外装され、
    　前記複数の破砕リングは、第１破砕リング及び第２破砕リングを含み、
    　前記第１破砕リングは、前記複数の破砕歯のうちの１つである第１基準歯を有し、
    　前記第２破砕リングは、前記複数の破砕歯のうちの１つである第２基準歯を有し、
    　前記第１基準歯は、前記第１破砕リングの中心と前記係合片及び前記被係合溝のいずれか他方の中心を結ぶ線上に位置し、
    　前記第２基準歯は、前記第１基準歯に対して前記周方向に３６０／（ｎ×Ｎ）（Ｎ：第２破砕リングの歯数）度ずらして配置される、請求項２に記載のクーラ装置のロールクラッシャ。     The load reducing roll has a shaft that extends in the axial direction and is rotated around the axial line by the rotating unit;
    The shaft has one of an engagement piece and an engaged groove that extend in the axial direction and engage with each other on the outer peripheral surface thereof,
    The plurality of crushing rings have either one of the engaging piece and the engaged groove on the inner peripheral surface, and the engaging piece is engaged with the engaged groove so as to be relative to the circumferential direction. It is armored on the shaft so that it cannot be displaced,
    The plurality of crushing rings include a first crushing ring and a second crushing ring,
    The first crushing ring has a first reference tooth that is one of the plurality of crushing teeth,
    The second crushing ring has a second reference tooth which is one of the plurality of crushing teeth,
    The first reference tooth is located on a line connecting the center of the first crushing ring and the other center of the engagement piece and the engaged groove,
    3. The second reference tooth according to claim 2, wherein the second reference tooth is arranged to be shifted by 360 / (n × N) (N: the number of teeth of the second crushing ring) in the circumferential direction with respect to the first reference tooth. Roll crusher for cooler equipment.
  4. 　前記複数の破砕歯は、第１高さを有する前記破砕歯である高歯と前記第１高さより低い第２高さを有する前記破砕歯である低歯とを含む、請求項１に記載のクーラ装置のロールクラッシャ。 The plurality of crushing teeth include a high tooth that is the crushing tooth having a first height and a low tooth that is the crushing tooth having a second height lower than the first height. Roll crusher for cooler equipment.
  5. 　前記負荷低減ロールの外周面には、複数の前記高歯が前記周方向に並んでいる高歯形成部位と、複数の前記低歯が前記周方向に並んでいる低歯形成部位とがあり、前記高歯形成部位と前記低歯形成部位とが千鳥状に配置されている、請求項４に記載のクーラ装置のロールクラッシャ。 On the outer peripheral surface of the load reducing roll, there are a high tooth forming portion where a plurality of the high teeth are arranged in the circumferential direction, and a low tooth forming portion where the plurality of the low teeth are arranged in the circumferential direction, The roll crusher of the cooler apparatus of Claim 4 by which the said high-tooth formation site | part and the said low-tooth formation site | part are arrange | positioned in zigzag form.
  6. 　前記負荷低減ロールは、前記軸線が延在する軸線方向に延在し、且つ前記回転ユニットによって前記軸線回りに回転させられるシャフトを有し、
    　前記複数の破砕歯は、予め定められたピッチで等間隔をあけて前記破砕リングの外周面に配置され、且つ前記軸線方向に隣接する前記破砕リングの前記複数の破砕歯に対して前記ピッチの１／２倍ずつ周方向一方にずらして配置され、
    　前記シャフトは、前記軸線方向に延在し且つ互いに係合する係合片及び被係合溝のいずれか一方を外周面に有し、
    　前記複数の破砕リングは、前記係合片及び前記被係合溝のいずれか他方を内周面に有し、前記係合片を前記被係合溝に係合させることで前記周方向に相対変位不能に前記シャフトに外装され、
    　前記破砕リングの外周面には、少なくとも２つ以上の前記高歯が並ぶ前記高歯形成部位と少なくとも２つ以上の前記低歯が並ぶ前記低歯形成部位とがあり、
    　前記複数の破砕リングは、第１破砕リング及び第２破砕リングを含み、
    　前記第１破砕リングは、前記複数の破砕歯のうちの１つであって前記第１破砕リングの中心と前記係合片及び前記被係合溝のいずれか他方の中心を結ぶ線上に位置している第１基準歯を有し、前記第１破砕リングの外周面に前記第１基準歯を基準として前記周方向に互い違いに前記高歯形成部位及び前記低歯形成部位が配置されており、
    　前記第２破砕リングは、前記複数の破砕歯のうちの１つであって前記第１基準歯に対して前記周方向一方に前記ピッチの１／２倍ずらして配置されている第２基準歯を有し、前記第２破砕リングの外周面に前記第２基準歯を基準として前記周方向において互い違いに前記高歯形成部位と前記低歯形成部位とが配置されており、
    　前記第１破砕リング及び前記第２破砕リングは、各々の前記軸線回りに回転対称性を有するように形成されている、請求項５に記載のクーラ装置のロールクラッシャ。     The load reduction roll has a shaft that extends in an axial direction in which the axis extends and is rotated around the axis by the rotating unit;
    The plurality of crushing teeth are arranged on the outer peripheral surface of the crushing ring at equal intervals with a predetermined pitch, and the pitch of the crushing teeth of the crushing ring adjacent to the axial direction is equal to the pitch. It is shifted by one half in the circumferential direction,
    The shaft has one of an engagement piece and an engaged groove that extend in the axial direction and engage with each other on the outer peripheral surface,
    The plurality of crushing rings have either one of the engaging piece and the engaged groove on the inner peripheral surface, and the engaging piece is engaged with the engaged groove so as to be relative to the circumferential direction. It is armored on the shaft so that it cannot be displaced,
    On the outer peripheral surface of the crushing ring, there are the high tooth forming part where at least two or more high teeth are arranged and the low tooth forming part where at least two or more low teeth are arranged,
    The plurality of crushing rings include a first crushing ring and a second crushing ring,
    The first crushing ring is one of the plurality of crushing teeth and is located on a line connecting the center of the first crushing ring and the other one of the engaging piece and the engaged groove. Having the first reference tooth, and the high tooth forming part and the low tooth forming part are arranged alternately in the circumferential direction with respect to the first reference tooth on the outer peripheral surface of the first crushing ring,
    The second crushing ring is one of the crushing teeth, and is a second reference tooth that is shifted from the first reference tooth by ½ times the pitch in the circumferential direction. And the high tooth forming portion and the low tooth forming portion are alternately arranged in the circumferential direction with reference to the second reference tooth on the outer peripheral surface of the second crushing ring,
    The roll crusher of the cooler device according to claim 5, wherein the first crushing ring and the second crushing ring are formed so as to have rotational symmetry about each of the axes.
  7. 　前記複数のロールは、隣接する少なくとも２つ以上の前記負荷低減ロールを有し、
    　隣接する前記負荷低減ロールは、前記複数の破砕歯の前記周方向におけるずれ量が互いに異なる前記破砕リングを夫々有している、請求項１乃至６のいずれか１つに記載のクーラ装置のロールクラッシャ。
          The plurality of rolls have at least two or more adjacent load reduction rolls,
    The said load reduction roll which adjoins has the said crushing ring from which the deviation | shift amount in the said circumferential direction of these crushing teeth mutually differs, The roll of the cooler apparatus as described in any one of Claim 1 thru | or 6 Crusher.
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JPWO2017038049A1 (en) 2018-06-14
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