CN114891934A - Steel slag roller type crushing, air quenching and cooling dry processing device and working method thereof - Google Patents
Steel slag roller type crushing, air quenching and cooling dry processing device and working method thereof Download PDFInfo
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- CN114891934A CN114891934A CN202210475860.5A CN202210475860A CN114891934A CN 114891934 A CN114891934 A CN 114891934A CN 202210475860 A CN202210475860 A CN 202210475860A CN 114891934 A CN114891934 A CN 114891934A
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- 239000002893 slag Substances 0.000 title claims abstract description 380
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 215
- 239000010959 steel Substances 0.000 title claims abstract description 215
- 238000001816 cooling Methods 0.000 title claims abstract description 115
- 238000012545 processing Methods 0.000 title claims abstract description 47
- 238000010791 quenching Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000000171 quenching effect Effects 0.000 title claims abstract description 36
- 238000011282 treatment Methods 0.000 claims abstract description 63
- 239000007787 solid Substances 0.000 claims abstract description 52
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 230000007246 mechanism Effects 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 21
- 239000000428 dust Substances 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000009749 continuous casting Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001341 Crude steel Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000024121 nodulation Effects 0.000 description 1
- 238000005580 one pot reaction Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Furnace Details (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a steel slag roller type crushing air quenching cooling dry processing device and a working method thereof, relates to the technical field of metallurgy, and particularly relates to a liquid and solid high-temperature steel slag roller type crushing air quenching cooling dry processing device and a working method thereof. The crushing bed is arranged at a front end station of the air cooling bed and is communicated with the air cooling bed; a slag inlet is arranged at the top of the front end of the crushing bed, and a movable slag cover is arranged on the slag inlet; a solid slag treatment station is arranged at the upper part of the slag inlet, and solid steel slag enters the crushing bed from the slag inlet; a liquid slag treatment station is arranged in the middle of the front end surface of the crushing bed, and liquid steel slag enters the crushing bed from the liquid slag treatment station; a side cover is arranged on the front end surface of the crushing bed and is positioned at the upper part of the liquid slag treatment station; a fixed crusher is arranged at the front part of the crushing bed and at the slag inlet; a movable crusher is arranged in the middle of the crushing bed; a slag crusher is arranged at the slag outlet at the rear part of the air cooling bed.
Description
Technical Field
The invention discloses a steel slag roller type crushing air quenching cooling dry processing device and a working method thereof, relates to the technical field of metallurgy, and particularly relates to a liquid and solid high-temperature steel slag roller type crushing air quenching cooling dry processing device and a working method thereof.
Background
China is a big iron and steel country, the yield of crude steel is 10.33 hundred million tons in 2021 year, the crude steel accounts for 52.95 percent of 19.505 million tons of global total yield, calculated according to the calorific value of 50kg of standard coal carried by each ton of steel slag on average, only one item of heat discharged by steel slag in China in 2021 year can reach 5165 million tons of standard coal calorific value, therefore, the recovery and utilization of waste heat in steel industry under the double-carbon background can be seen in the future! The treatment of the steelmaking raw slag in the steel industry is the core of the whole steel slag treatment process, namely how to technically treat the liquid (or dry) high-temperature slag, wherein the liquid (or dry) high-temperature slag is firstly crushed to the smallest size and secondly treated from the high-temperature liquid (or solid) to the normal-temperature solid; at present, most of primary treatment technologies are a semi-dry method and a wet method, and liquid water is used as a refrigerant; the treatment method using 'liquid water' as refrigerant causes irreversible secondary pollution.
In order to break through the above technical barriers, various efforts have been made in the industry including patent technologies such as CN111850194A, CN112853013A, CN112958246A, CN113061673A, CN113430307A, etc., in an attempt to solve the above problems, but:
1. the CN111850194A in the prior art still has the following problems:
1.1 because of the height difference, the steel slag directly falls into the material bed from the upper part, firstly, the phenomenon of impacting the material bed is generated, and a cold slag layer remained in the last treatment is impacted (the cushion layer is necessary to be remained by the technology so as to protect the grate plate to play a role in heat insulation and heat resistance) and is accumulated on the material bed; then the roller teeth of the crushing roller perform the crushing action of scraping and raking on the thermal state steel slag; the steel slag which is raked and raked by the roller teeth moves to the tail end of the crushing bed through the crushing action of the raking and raking, but the moving efficiency, effect and distance are limited; therefore, the thermal state steel slag accumulated on the material bed can be completely spread by 'raking and raking' within a period of time, in the period of time, the material bed is required to bear the direct baking of the high-temperature steel slag on one hand, and on the other hand, cold air blown into the material bed from bottom to top cannot directly penetrate the accumulated steel slag, so that the accumulated thermal state steel slag causes serious thermal load impact (at least 10 tons of slag in one pot) to the grate bed at the position, and the grate plate is easy to cause local overheating and failure;
1.2 the width of the plate hole gap of the grid plate is 5-40mm, the linear air holes can be quickly blocked by steel slag particles with proper granularity in the steel slag treatment process, and the blocked grid plate can not be burnt by high-temperature steel slag due to the fact that cold air can not pass through the temperature rise; when the blocked grid plates and the burnt grid plates are more and more, the whole device cannot work;
2. the prior art CN112853013A still has the following problems:
2.1 in the claim, "the wire type heat exchange bed (7) is provided with a working surface for receiving and placing the high-temperature steel slag (3) from the zigzag passage (5)," the steel slag has high viscosity, the temperature of the steel slag is gradually reduced from a molten state along with the cooling and crushing time, the steel slag gradually generates a 'nodulation' phenomenon when passing through the zigzag passage, and the steel slag gradually grows up along with the production time and finally blocks the passage, so that the equipment fails;
2.2, arranging a baffle (6), wherein the original design intention is to homogenize the steel slag passing through the baffle (6), but the steel slag is placed on a heat exchange bed (7) close to a zigzag channel (5), so that accretion is gradually generated and gradually increased to gradually block a plug channel, and finally the operation effect is influenced, so that the equipment is disabled;
2.3 the hot air of the crushing bed and the hot air of the linear bed enter the same heat utilization equipment in a combined manner, and the hot air is not classified according to the temperature of the hot air so as to achieve the effects of 'completely utilizing the hot air' and 'reducing carbon and reducing emission';
2.4' [0032] the residence time of the high-temperature steel slag on the linear heat exchange bed is 40-60min, "[ 0033] the slag pushing time intervals of each time are equal, and the total slag pushing time is 20-30 min", so that the total residence time of the steel slag, namely the processing time is basically 60min or more than 60 min; if the treatment time of the steel slag exceeds 30 minutes, the gelation property of the steel slag is influenced, the performance is reduced, and the subsequent steel tailing engineering application is influenced;
3. the prior art CN112958246A still has the following problems:
3.1 the technology has the same parts with CN111850194A, namely, the upper slag pot pours molten steel slag into the equipment, impacts the material bed and accumulates on the material bed, wherein the liquid slag impacts particularly, the grate plate generates heat load impact, the service cycle of the grate plate is seriously influenced, the crushing action of the crushing roller on the thermal steel slag, namely the steel slag crushed by the grate and the rake moves to the tail end of the crushing bed, the moving distance is limited, the spreading of the accumulated steel slag by the grate and the rake needs longer time, the accumulated thermal steel slag causes serious heat load impact on the grate bed at the position, and the grate plate is extremely easy to cause local overheating and failure;
3.2 in operation, a cushion layer needs to be laid on the surface of the bottom bed in advance, and the impact generated when the upper slag pot pours the steel slag into the material bed cannot be reduced no matter how thick the cushion layer is arranged, so the technology is complicated and complex in the operation layer;
3.3 the main structure of the equipment is similar to the structure of a metallurgical pellet circular cooler or a rotary hearth furnace, the size of the metallurgical pellet circular cooler or the rotary hearth furnace equipment is too large, the occupied area is large, the cost is high and the equipment is unacceptable for steel enterprises compared with any steel slag treatment equipment on the market at present;
4. the prior art CN113061673A still has the following problems:
4.1 the technology is the same as or similar to the CN112958246A in the prior art, the upper slag pot pours molten steel slag into the equipment, and impacts a material bed, wherein the liquid slag impacts particularly, heat load impact is generated on a grate plate, and the service cycle of the grate plate is seriously influenced;
4.2 the main structure of the equipment is similar to that of a rotary hearth furnace or a pellet circular cooler in the metallurgical industry, the rotary hearth furnace has large volume, large occupied area and high manufacturing cost, and is unacceptable for iron and steel enterprises;
5. the prior art CN113430307A still has the following problems:
5.1 the effect of treating liquid slag is obvious, but the liquid-solid mixed slag can not be treated, and the solid dry slag can not be treated;
5.2 no matter the ejector is horizontally arranged or forms a certain included angle with the horizontal axis, the sprayed compressed gas carries steel slag particles to fly along a parabolic track, and the steel slag particles can fall on the material bed after flying for a certain horizontal distance, so that no or few steel slag particles exist on the material bed between the ejector and the falling point, and air cooling is not needed to be carried out on the part of the material bed; the part of the material bed does not play a cooling role, wastes limited space, increases the length of equipment and increases the occupied area;
aiming at the problems in the prior art, a novel steel slag roller type crushing, air quenching, cooling and dry processing device and a working method thereof are researched and designed, so that the problems in the prior art are very necessary to be overcome.
Disclosure of Invention
The accumulated thermal-state steel slag proposed by the prior art causes serious thermal load impact on the grate bed, and causes the local overheating of the grate plate to fail; the steel slag particles block the grid plate, so that the grid plate is burnt out, and the whole equipment cannot work; the technical problems of overlarge equipment size, large occupied area, high manufacturing cost and the like are solved, and the steel slag roller type crushing, air quenching and cooling dry processing device and the working method thereof are provided.
The technical means adopted by the invention are as follows:
a roller type crushing, air quenching, cooling and dry processing device for steel slag comprises: the system comprises an air cooling bed, an air cooling bed hot air dust remover, a hot device for the air cooling bed and an air cooling bed system fan; the air cooling bed consists of one of a self-feeding material bed and other feeding material beds and an air cooling bed shell arranged outside the air cooling bed; the air-cooled bed casing includes: a hot air port A and a hot air port B which are arranged at the top of the slag tapping hole, and a slag tapping hole which is arranged at the lower part of the tail end of the slag tapping hole; the outer parts of the hot air port A and the hot air port B are sequentially connected and assembled with an air cooling bed hot air dust remover, an air cooling bed heat device and an air cooling bed system fan;
further, the roller type crushing, air quenching, cooling and dry processing device for the steel slag further comprises: the device comprises a liquid slag treatment station, a solid slag treatment station, a movable slag cover, a side cover, a fixed crusher, a movable crusher, a crushing bed and a steel slag fine crusher;
furthermore, the crushing bed is arranged at a front end station of the air cooling bed and is communicated with the air cooling bed;
furthermore, a slag inlet is arranged at the top of the front end of the crushing bed, and a movable slag cover is arranged on the slag inlet;
further, a solid slag treatment station is arranged at the upper part of the slag inlet, and solid steel slag enters the crushing bed from the slag inlet;
further, a liquid slag treatment station is arranged in the middle of the front end face of the crushing bed, and liquid steel slag enters the crushing bed from the liquid slag treatment station;
furthermore, a side cover is arranged on the front end surface of the crushing bed and is positioned at the upper part of the liquid slag treatment station;
furthermore, a fixed crusher is arranged at the front part of the crushing bed and the slag inlet;
further, a movable crusher is arranged in the middle of the crushing bed;
furthermore, a slag crusher is arranged at a slag outlet at the rear part of the air cooling bed.
Further, the crushing bed comprises: an inclined bed, a horizontal bed, a crushing bed shell;
furthermore, the horizontal bed is horizontally arranged on the foundation and is formed by connecting and combining a plurality of groups of crushing grid plates B end to end; each group of crushing grate plates B comprises: the air inlet B, the air blowing port B, the grate bar B and the frame B; the grate bars B are multiple, and two ends of each grate bar B are arranged on the frame B and are formed by overlapping the front part, the back part and the bottom part; a backward air blowing port B is reserved between every two adjacent grate bars B; the air inlet B is positioned below the grate bar B, and blown air is blown backwards from the air outlet B;
furthermore, the inclined bed is obliquely arranged at the front part of the horizontal bed, the inclination angle is 10-50 degrees, the front end of the inclined bed is arranged on the shell wall at the front end of the crushing bed shell and is positioned at the liquid slag treatment station, and the rear end of the inclined bed is lapped at the front end of the horizontal bed; the inclined bed comprises: a plurality of groups of crushing grate plates A and a blowing device; each group of crushing grid plates A comprises: the air inlet A, the air outlet A, the grate bar A and the frame A; the grate bars are multiple, two ends of each grate bar A are arranged on the frame A, and the right side of the grate bar A is obliquely overlapped up and down; a backward air outlet A is reserved between every two adjacent grate bars A; the air inlet A is positioned below the grate bar B; the blowing device is arranged outside the front end of the crushing bed shell and communicated with the inside of the shell, and blows air into the crushing bed shell, the air is blown out from the air inlet A, and then the air is blown out from the air outlet A;
further, the crushing bed housing comprises: the slag inlet, the hot air port A, the hot air port B, the retaining wall, the shaft hole, the telescopic baffle, the baffle slideway, the air inlet and the branch pipeline; the slag inlet is arranged at the top end opening part of the vertical channel at the upper end of the front part of the crushing bed shell; the hot air port A and the hot air port B are arranged at the top end of the rear part of the crushing bed shell, and the hot air port B is sequentially connected with a crushing bed hot air dust remover, a crushing bed heat device and a crushing bed system fan; a retaining wall is arranged between the hot air port A and the hot air port B; two horizontal baffle plate slideways are respectively arranged on two side walls of the crushing bed shell; the baffle slideway is provided with a telescopic baffle; the telescopic baffle is provided with at least one shaft hole for assembling the movable crusher; the air inlets are arranged at two sides of the bottom of the crushing bed shell and communicated with the branch pipelines; the outlet end of the branch pipeline is positioned at the bottom of the horizontal bed;
furthermore, the telescopic baffle comprises a baffle body, a slide rod and a fixing bolt; the sliding rod is fixed on the baffle body through a fixing bolt; the baffle body is provided with a slide rod hole and a fixing bolt hole; the slide bar is inserted into the slide bar hole, and the fixing bolt is inserted into the fixing bolt hole to fix the slide bar.
Taking a single-roller moving plate crusher as an example, the code of the single-roller moving plate crusher is [ F ]:
mandrel right side connection mode:
the head end (left side) of the first telescopic baffle is fixed on the mandrel, the head end of the second telescopic baffle is staggered with the tail end (right side) of the first telescopic baffle, and the slide rod of the first telescopic baffle penetrates through the slide rod hole at the head end of the second telescopic baffle and is fixed on the baffle body through the fixing bolt hole by the fixing bolt; the second telescopic baffle can slide back and forth on the slide rod between the head end and the tail end of the first telescopic baffle; by analogy, the tail end of the last telescopic baffle n is fixed on a side retaining wall of the crushing bed shell;
the working process comprises the following steps:
when the shaft [ F ] moves rightwards, the mandrel drives the first telescopic baffle to move rightwards, and the slide bar hole of the first telescopic baffle penetrates through the slide bar hole at the head end of the second telescopic baffle, so that the first telescopic baffle does not influence the rightwards movement of the second telescopic baffle;
when the head end of the first telescopic baffle plate touches the head end of the second telescopic baffle plate, the second telescopic baffle plate is driven by the first telescopic baffle plate to move rightwards together;
a slide bar hole of the second telescopic baffle plate penetrates through a slide bar hole at the head end of the third telescopic baffle plate, so that the second telescopic baffle plate moves rightwards without being influenced by the third telescopic baffle plate;
when the head end of the second telescopic baffle plate touches the head end of the third telescopic baffle plate, the first telescopic baffle plate, the second telescopic baffle plate and the third telescopic baffle plate move rightwards together;
a slide bar hole of the third telescopic baffle plate penetrates through a slide bar hole at the head end of the fourth telescopic baffle plate, so that the third telescopic baffle plate moves rightwards without being influenced by the fourth telescopic baffle plate;
and so on, until the head end of the (n-1) piece of telescopic baffle plate touches the head end of the n piece of telescopic baffle plate, the mobile crusher stops; therefore, the right telescopic baffle plate of the [ F ] mandrel has a sealing effect on the shaft hole and prevents excessive cold air from entering;
(2) mandrel left side connection mode:
the tail end (right side) of the first telescopic baffle is fixed on the mandrel, the tail end of the second telescopic baffle is staggered with the head end of the first telescopic baffle, and the slide rod of the first telescopic baffle penetrates through the tail end slide rod hole of the second telescopic baffle and is fixed on the baffle body through the fixing bolt hole by the fixing bolt; the second telescopic baffle can slide back and forth on the slide rod between the head end and the tail end of the first telescopic baffle; by analogy, the head end of the second telescopic baffle is fixed on the side retaining wall of the crushing bed shell, and the tail end of the last telescopic baffle n is fixed on the side retaining wall of the crushing bed shell;
the working process comprises the following steps:
when the shaft [ F ] moves leftwards, the mandrel drives the first telescopic baffle to move leftwards, and the sliding rod hole of the first telescopic baffle penetrates through the sliding rod hole at the tail end of the second telescopic baffle, so that the first telescopic baffle does not move leftwards under the influence of the second telescopic baffle;
when the tail end of the first telescopic baffle plate touches the tail end of the second telescopic baffle plate, the second telescopic baffle plate is driven by the first telescopic baffle plate to move leftwards together;
a slide bar hole of the second telescopic baffle plate penetrates through a slide bar hole at the tail end of the third telescopic baffle plate, so that the second telescopic baffle plate moves leftwards without being influenced by the third telescopic baffle plate;
when the tail end of the second telescopic baffle plate touches the tail end of the third telescopic baffle plate, the first telescopic baffle plate, the second telescopic baffle plate and the third telescopic baffle plate move leftwards together;
the slide bar hole of the third piece penetrates through the slide bar hole at the tail end of the fourth telescopic baffle plate, so that the rightward movement of the third telescopic baffle plate is not influenced by the fourth telescopic baffle plate;
and so on, · F stops when the tail end of the (n-1) piece of telescopic baffle plate touches the tail end of the n piece of telescopic baffle plate; therefore, the right telescopic baffle plate of the [ F ] mandrel has a sealing effect on the shaft hole and prevents excessive cold air from entering;
the complete working process comprises the following steps:
when the [ F ] is towards the left or right, the first head end or the tail end of the telescopic baffles on the left side and the right side of the mandrel is fixed on the mandrel, and the tail end or the head end of the nth mandrel is fixed on the retaining wall on the side surface of the crushing bed shell, so that the telescopic baffles on the left side and the right side are in a stretching state or a compressing state, a sealing effect is achieved on a shaft hole, and excessive cold air is prevented from entering.
Take a twin-roll moving plate crusher as an example: the codes of the two single-roller moving plate crushers are respectively composed of [ F1] and [ F2] in the sequence from left to right of [ F1] + [ F2 ]:
the connection mode of the telescopic baffle plate is as follows:
[F2] the right side telescopic baffle installation mode is the same as the working mode: a mandrel right side connection mode of a single-roller moving plate type crusher code [ F ] in the single-roller moving crusher;
[F1] the mounting mode and the working mode of the left telescopic baffle are the same: a mandrel left side connection mode of a single-roller moving plate type crusher code [ F ] in the single-roller moving crusher;
[F1] and (F2) mounting manner of the telescopic baffle:
the head end of the 1 st telescopic baffle is staggered with the tail end of the 2 nd telescopic baffle, and the slide bar of the 1 st telescopic baffle passes through the slide bar hole at the tail end of the 2 nd telescopic baffle;
the tail end of the 1 st telescopic baffle is staggered with the head end of the 2 nd telescopic baffle, and the slide bar of the 1 st telescopic baffle passes through the slide bar hole at the head end of the 2 nd telescopic baffle;
the head end of the 2 'telescopic baffle is staggered with the tail end of the 3' telescopic baffle, and the slide rod of the 2 'telescopic baffle passes through the slide rod hole at the tail end of the 3' telescopic baffle;
the tail end of the 2 nd telescopic baffle is staggered with the head end of the 3 rd telescopic baffle, and the slide bar of the 2 nd telescopic baffle passes through the slide bar hole at the head end of the 3 rd telescopic baffle;
the head end of the 3 'telescopic baffle is staggered with the tail end of the 4' telescopic baffle, and the slide rod of the 3 'telescopic baffle passes through the slide rod hole at the tail end of the 4' telescopic baffle;
the tail end of the 3 rd telescopic baffle is staggered with the head end of the 4 th telescopic baffle, and the slide rod of the 3 rd telescopic baffle passes through the slide rod hole at the head end of the 4 th telescopic baffle;
analogizing in turn until the m 'th and m' th pieces;
the head end of the mth piece is fixed to the [ F1] mandrel, and the tail end of the mth piece is fixed to the [ F2] mandrel;
the structure forms a structure which is symmetrical left and right by taking the 1 st telescopic baffle as a center, when [ F2] stays at the rightmost end and [ F1] moves leftwards to the leftmost end, the stretching length of the telescopic baffle between [ F1] [ F2] can meet the requirement that the distance between the center distances of [ F1] [ F2] mandrels is Lmax, and conditions are created for the left and right movement of [ F1] [ F2 ];
when [ F1] [ F2] moves oppositely, the telescopic baffles between [ F1] [ F2] are compressed, the limit positions of the opposite movement are that the frames of [ F1] [ F2] are in contact, the opposite movement is stopped by alarming at the moment, the telescopic baffles between [ F1] [ F2] are in a compressed state, and the minimum length of compression is Lnim ≦ F1] [ F2] mandrel center distance;
further, the fixed crusher is arranged at the vertical channel at the lower part of the slag inlet;
further, the fixed crusher is divided into a single-roller fixed crusher and a double-roller fixed crusher;
furthermore, the single-roller fixed crusher is divided into a single-roller tooth type crusher and a single-roller plate type crusher;
furthermore, the double-roller fixed crusher is divided into a double-roller tooth type crusher and a double-roller plate type crusher;
further, a single-roller tooth crusher comprises: a mandrel, a roller, roller teeth and an air port; a plurality of roller teeth are uniformly distributed on the roller; the roll teeth are provided with air ports; a mandrel is coaxially arranged at the axle centers of the two ends of the roller respectively; the roller, the roller teeth and the mandrel are of hollow structures, and the mandrel is connected with the driving mechanism;
further, the single-roll plate crusher comprises: a mandrel, a roller, a plate hammer and an air port; a plurality of plate hammers are uniformly distributed on the roller; the plate hammer is provided with an air port; a mandrel is coaxially arranged at the axle centers of the two ends of the roller respectively; the roller, the plate hammer and the mandrel are of hollow structures, and the mandrel is connected with the driving mechanism;
furthermore, the double-roller tooth type crusher is formed by horizontally arranging two single-roller tooth type crushers, and the roller teeth of the two single-roller tooth type crushers are alternately and crossly arranged;
furthermore, the double-roller plate crusher is formed by horizontally arranging two single-roller plate crushers, and plate hammers of the two single-roller plate crushers are arranged in a crossed mode at intervals.
Further, the movable crusher is arranged on the horizontal bed
Further, the mobile crusher is divided into a single-roller mobile crusher and a double-roller mobile crusher;
furthermore, the single-roller mobile crusher is divided into a single-roller mobile tooth type crusher and a single-roller mobile plate type crusher;
further, the double-roller mobile crusher is divided into a double-roller mobile tooth crusher and a double-roller mobile plate crusher;
further, a single roller moving tooth crusher comprises: the device comprises a core shaft, a roller, roller teeth, an air port, a traveling mechanism, a crushing roller transmission mechanism and a frame C; a plurality of roller teeth are uniformly distributed on the roller, and air ports are formed in the roller teeth; a mandrel is coaxially arranged at the axle centers of the two ends of the roller respectively; the roller, the roller teeth and the mandrel are hollow structures; the mandrel is arranged on the frame C through a bearing seat; the frame C is provided with a travelling mechanism for the single-roller movable tooth type crusher to move on the horizontal bed; two ends of the mandrel penetrate out of the crushing bed shell through the shaft holes, are connected with the crushing roller transmission mechanism and rotate under the driving of the crushing roller transmission mechanism;
further, the single-roll moving plate crusher includes: the device comprises a core shaft, a roller, a plate hammer, an air port, a travelling mechanism, a crushing roller transmission mechanism and a frame C; a plurality of plate hammers are uniformly distributed on the roller, and air ports are formed in the plate hammers; a mandrel is coaxially arranged at the axle centers of the two ends of the roller respectively; the roller, the plate hammer and the mandrel are hollow structures; the mandrel is arranged on the frame C through a bearing seat; the frame C is provided with a travelling mechanism for the single-roller movable plate crusher to move on the horizontal bed; two ends of the mandrel penetrate out of the crushing bed shell through the shaft holes, are connected with the crushing roller transmission mechanism and rotate under the driving of the crushing roller transmission mechanism;
furthermore, the double-roller movable tooth type crusher is formed by horizontally arranging two single-roller movable tooth type crushers;
furthermore, the double-roller movable plate crusher is formed by horizontally arranging a single-roller movable plate crusher.
Further, the liquid slag treatment station comprises: a tundish and a slag guide groove;
furthermore, the tail end of the slag guide groove is arranged on the shell at the front end of the crushing bed shell and is communicated with the inside of the crushing bed shell;
further, the tundish is arranged above the head end of the slag guide groove;
furthermore, the slag guide groove is high at the head end and low at the tail end, and an included angle of 3-8 degrees is formed in the horizontal direction.
Further, the solid slag treatment station comprises: is positioned above the slag inlet; after pouring out the steel slag from the solid dry slag at the solid slag treatment station, starting a movable slag cover to cover a slag inlet, and preventing excessive cold air from entering to prevent the temperature of the flue gas from being reduced; when the slag pot contains large-size low-temperature residual steel blocks, the fixed crusher runs reversely, and the low-temperature residual steel blocks are discharged from the side cover.
Further, the steel slag fine crusher comprises: the transmission device comprises a transmission device, an air inlet C, a hollow shaft, a shaft sleeve air outlet, a mandrel air outlet, a hollow shaft surface air outlet hole and a bracket; the surface of the shaft sleeve is provided with a shaft sleeve air outlet, and the shaft sleeve is sleeved on the hollow shaft; two ends of the hollow shaft are arranged at a slag outlet of the air cooling bed through a bracket; one end of the hollow shaft is provided with an air inlet C, and the other end of the hollow shaft is provided with a mandrel air outlet; one end of the hollow shaft is connected with the transmission;
furthermore, the shaft sleeve is divided into a long shaft sleeve and a short shaft sleeve, and the long shaft sleeve and the short shaft sleeve are arranged at intervals to form the shaft sleeve sleeved on the hollow mandrel; and cold air passes through air holes distributed on the surface of the hollow shaft and an air outlet of the shaft sleeve on the shaft sleeve to be used for cooling the shaft sleeve body and cooling the steel slag.
Furthermore, the hot air dust remover of the crushing bed adopts a cyclone dust remover and is respectively connected with a hot air outlet of the crushing bed and thermal equipment for the crushing bed through pipelines;
further, the heat equipment for the crushing bed is one of scrap steel preheating channels of a continuous casting ladle, a tundish, a steel ladle and an electric furnace, and a converter heats the scrap steel channel;
furthermore, a negative pressure fan is adopted as a fan of the crushing system, the negative pressure fan is connected with a thermal device for the crushing bed through a pipeline, and purified tail gas is discharged in opposite air.
The working method of the steel slag roller type crushing, air quenching, cooling and dry processing device comprises the following steps:
91. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
92. solid slag feeding: opening a movable slag cover, pouring solid steel slag into a solid slag treatment station from a slag inlet, and closing the movable slag cover to prevent excessive cold air from entering and reduce the temperature of flue gas;
93. solid slag treatment: after solid steel slag enters a solid slag treatment station, carrying out initial crushing by a fixed crusher, and when a slag tank contains large-size uncrushed low-temperature residual steel blocks, reversely operating the fixed crusher to discharge the low-temperature residual steel blocks from a side cover;
94. crushing by a crushing bed: the steel slag after initial crushing falls into an inclined bed, is conveyed forwards by a crushing grate plate A and simultaneously is assisted to move forwards by a blowing device, and is cooled; the steel slag falls onto a horizontal bed after passing through an inclined bed and is conveyed forwards through a crushing grid plate B, and meanwhile, compressed gas is sprayed out from an air outlet of the grid plate through an air inlet and branch pipelines of the crushing bed to carry out air quenching and cooling on the steel slag; the movable crusher arranged on the crushing bed crushes the steel slag again; conveying the crushed steel slag to an air cooling bed by a crushing bed;
95. air cooling of steel slag: the steel slag enters an air cooling bed, the air cooling bed continuously cools the steel slag while conveying the steel slag to the downstream, and the cooled steel slag falls to the lower row from a slag outlet;
96. fine crushing treatment: the steel slag is discharged through the slag outlet and is crushed again through a steel slag fine crusher arranged at the slag outlet.
The working method of the steel slag roller type crushing, air quenching, cooling and dry processing device comprises the following steps:
101. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
102. feeding liquid slag: pouring liquid steel slag into a crushing bed shell from a liquid slag treatment station through a slag guide groove, and dropping the liquid steel slag onto an inclined bed;
103. crushing by a crushing bed: the steel slag after initial crushing falls into an inclined bed, is conveyed forwards by a crushing grate plate A and simultaneously is assisted to move forwards by a blowing device, and is cooled; the steel slag falls onto a horizontal bed after passing through an inclined bed and is conveyed forwards through a crushing grid plate B, and meanwhile, compressed gas is sprayed out from an air outlet of the grid plate through an air inlet and branch pipelines of the crushing bed to carry out air quenching and cooling on the steel slag; the movable crusher arranged on the crushing bed crushes the steel slag again; conveying the crushed steel slag to an air cooling bed by a crushing bed;
104. air cooling of steel slag: the steel slag enters an air cooling bed, the air cooling bed continuously cools the steel slag while conveying the steel slag to the downstream, and the cooled steel slag falls to the lower row from a slag outlet;
105. fine crushing treatment: the steel slag is discharged through the slag outlet and is crushed again through a steel slag fine crusher arranged at the slag outlet.
Compared with the prior art, the invention has the following advantages:
1. the roller type crushing, air quenching and cooling dry processing device for the steel slag and the working method thereof can process solid steel slag and liquid steel slag, realize the purpose of two processing modes of one set of equipment, save the occupied area of the equipment and save the investment of the equipment;
2. according to the roller type crushing, air quenching and cooling dry processing device for the steel slag and the working method thereof, a processing method of taking liquid water as a refrigerant is cancelled, so that irreversible secondary pollution is avoided;
3. according to the steel slag roller type crushing, air quenching and cooling dry processing device and the working method thereof, the solid crusher is arranged at the solid slag processing station, so that the solid steel slag is crushed in the early stage, and the crushing processing in the later stage is facilitated;
4. the roller type crushing, air quenching, cooling and dry processing device for the steel slag and the working method thereof provided by the invention are provided with the inclined bed, so that solid and liquid slag can conveniently flow into the horizontal bed to be crushed;
5. the roller type crushing, air quenching and cooling dry processing device for the steel slag and the working method thereof provided by the invention are provided with the movable crusher, can crush the steel slag in the moving process, and are convenient for performing targeted crushing on the steel slag accumulated on a horizontal bed at a certain position;
6. according to the steel slag roller type crushing air quenching cooling dry processing device and the working method thereof, the telescopic baffles are arranged on the two sides of the crushing bed shell, so that the crushing bed is conveniently sealed when the crusher is moved back and forth;
7. the invention provides a roller type crushing, air quenching, cooling and dry processing device for steel slag and a working method thereof.A crushing bed hot air dust remover, a crushing bed heat device and a crushing bed system fan are arranged at the top of a crushing bed shell to utilize waste heat;
8. the invention provides a roller type crushing, air quenching, cooling and dry processing device for steel slag and a working method thereof.A slag fine crusher is arranged at a slag outlet of an air cooling bed to crush the steel slag again;
9. according to the steel slag roller type crushing, air quenching and cooling dry processing device and the working method thereof, the particle size range of the processed steel slag is less than or equal to 50mm, and a conventional secondary processing system can be omitted;
10. the roller type crushing, air quenching, cooling and dry processing device for the steel slag and the working method thereof provided by the invention can save the investment of a secondary processing system compared with the prior processing technology because the conventional secondary processing system can be cancelled.
In conclusion, the technical scheme of the invention solves the problems that the accumulated thermal-state steel slag in the prior art causes serious thermal load impact on the grate bed, and causes the local overheating of the grate plate to fail; the steel slag particles block the grid plate, so that the grid plate is burnt out, and the whole equipment cannot work; the equipment has the problems of overlarge size, large occupied area, high manufacturing cost and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a single-roller tooth crusher according to the present invention;
FIG. 3 is a schematic view of a single roll plate crusher of the present invention;
FIG. 4 is a schematic view of a twin-roller toothed crusher according to the present invention;
FIG. 5 is a schematic view of a twin roll plate crusher according to the present invention;
FIG. 6 is a schematic structural view of a single-roller mobile tooth crusher according to the present invention;
FIG. 7 is a schematic view of the single roll moving plate crusher of the present invention;
FIG. 8 is a schematic structural view of an example of a combination of a single-roller moving tooth crusher and a single-roller moving plate crusher according to the present invention;
FIG. 9 is a schematic structural view of a second example of a combination of a single-roller moving plate crusher and a single-roller moving tooth crusher according to the present invention;
FIG. 10 is a schematic view of a twin-roll mobile tooth crusher according to the present invention;
FIG. 11 is a schematic view of a twin roll moving plate crusher of the present invention;
FIG. 12 is a view A-A of FIG. 1 in accordance with the present invention;
FIG. 13 is a view B-B of FIG. 1 in accordance with the present invention;
FIG. 14 is a view C-C of FIG. 1 of the present invention;
FIG. 15 is a view of FIG. 1 of the present invention from C '-C';
FIG. 16 is a view E-E of FIG. 12 in accordance with the present invention;
FIG. 17 is a view from F-F of FIG. 13 of the present invention;
FIG. 18 is view I-I of FIG. 1 of the present invention;
FIG. 19 is an enlarged view of section M of FIG. 18 in accordance with the invention;
FIG. 20 is a view taken along line K of FIG. 19 in accordance with the present invention;
FIG. 21 is a view from D-D of FIG. 1 of the present invention;
FIG. 22 is a view G-G of FIG. 21 of the present invention;
FIG. 23 is view H of FIG. 22 of the present invention;
FIG. 24 is a view from D '-D' of FIG. 1 in accordance with the present invention;
FIG. 25 is the IV view of FIG. 24 of the present invention;
FIG. 26 is a view V of FIG. 24 in accordance with the present invention;
FIG. 27 is a view from J-J of FIG. 1 of the present invention;
FIG. 28 is a schematic structural view of a single-roller tooth crusher and a single-roller mobile tooth crusher according to the present invention;
FIG. 29 is a schematic view of a single-roller tooth crusher and a twin-roller mobile tooth crusher according to the present invention;
FIG. 30 is a schematic view of a twin roller tooth crusher and a single roller mobile tooth crusher according to the present invention;
fig. 31 is a schematic diagram of the twin roller mobile dog crusher and twin roller mobile dog crusher configuration of the present invention.
In the figure:
01. a liquid slag treatment station 011, a tundish 012 and a slag guide groove;
02. a solid slag treatment station 03, a movable slag cover 04 and a side cover;
1. a fixed crusher 1.1, a single-roller fixed crusher 1.1.1, a single-roller tooth crusher 1.1.1-1, a mandrel 1.1.1-2, a roller 1.1.1-3, a roller tooth 1.1.1-3', a board hammer 1.1.1-4, an air port 1.1.1-5, a traveling mechanism 1.1.1-6, a crushing roller transmission mechanism 1.1.1-7, a frame C1.1.2, a single-roller board crusher 1.2, a double-roller fixed crusher 1.2.1, a double-roller tooth crusher 1.2.2 and a double-roller board crusher;
2. a mobile crusher 2.1, a single-roller mobile crusher 2.1.1, a single-roller mobile tooth type crusher 2.1.2, a single-roller mobile plate type crusher 2.2, a double-roller mobile crusher 2.2.1, a double-roller mobile tooth type crusher 2.2 and a double-roller mobile plate type crusher;
3, crushing bed, 3.1, inclined bed 3.1.1, crushing grate plate A3.1.1-1, air inlet A3.1.1-2, air outlet A3.1.1-3, grate bar A3.1.4, frame A3.1.2, purging device 3.2, horizontal bed 3.2.1, crushing grate plate B3.2.1-1, air inlet B3.2.1-2, air blowing port B3.2.1-3, grate bar B3.2.1-4, frame B3.3, crushing bed shell 3.3.1, slag inlet 3.3.2, hot air port A3.3.3.3, hot air port B3.3.4, retaining wall 3.3.5, shaft hole 3.3.6, telescopic baffle 3.3.6.1, baffle body 3.3.6.1-1 slide rod hole, 3.3.6.1-2, fixing bolt 3.3.6.2, 36 3.3.6.3, fixing bolt, baffle 3778, slide rail 3.3.9, slide rail;
4. 4.1 of an air cooling bed, 4.2 of a self-feeding material bed, 4.3 of another feeding material bed, 4.3.1 of an air cooling bed shell, 4.3.2 of a hot air port A, 4.3.3 of a hot air port B, 4.3.4 of a slag outlet and a slag outlet;
5. the device comprises a steel slag fine crusher 5.1, a transmission 5.2, an air inlet C5.3, a hollow shaft 5.4, a shaft sleeve 5.4.1, a long shaft sleeve 5.4.2, a short shaft sleeve 5.5, a shaft sleeve air outlet 5.6, a mandrel air outlet 5.7, a hollow shaft surface air outlet 5.8 and a bracket;
6. the device comprises a crushing bed hot air dust remover 7, a crushing bed thermal device 8, a crushing system fan 6 ', an air cooling bed hot air dust remover 7 ', an air cooling bed thermal device 8 ' and an air cooling bed system fan.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
Example 1
As shown in the figure, the invention provides a roller type crushing, air quenching, cooling and dry processing device for steel slag, which comprises: an air cooling bed 4, an air cooling bed hot air dust remover 6 ', an air cooling bed heat device 7 ' and an air cooling bed system fan 8 '; the air cooling bed 4 consists of one of a self-feeding material bed 4.1 and other feeding material beds 4.2 and an air cooling bed shell 4.3 arranged outside the self-feeding material bed 4.1; the air-cooled bed housing 4.3 comprises: hot blast port A4.3.1 and hot blast port B4.3.2 disposed at the top thereof and slag outlet 4.3.4 disposed at the lower part of the tail end thereof; the outer parts of the hot air port A4.3.1 and the hot air port B4.3.2 are sequentially connected and assembled with an air-cooled bed hot air dust collector 6 ', an air-cooled bed heat device 7 ' and an air-cooled bed system fan 8 ';
the steel slag roller type crushing, air quenching, cooling and dry processing device further comprises: the device comprises a liquid slag treatment station 01, a solid slag treatment station 02, a movable slag cover 03, a side cover 04, a fixed crusher 1, a movable crusher 2, a crushing bed 3 and a steel slag fine crusher 5; the crushing bed 3 is arranged at the front end station of the air cooling bed 4 and is communicated with the air cooling bed 4; a slag inlet 3.3.1 is arranged at the top of the front end of the crushing bed 3, and a movable slag cover 03 is arranged on the slag inlet 3.3.1; a solid slag treatment station 02 is arranged at the upper part of the slag inlet 3.3.1, and solid steel slag enters the crushing bed 3 from the slag inlet 3.3.1; a liquid slag treatment station 01 is arranged in the middle of the front end face of the crushing bed 3, and liquid steel slag enters the crushing bed 3 from the liquid slag treatment station 01; a side cover 04 is arranged on the front end surface of the crushing bed 3, and the side cover 04 is positioned at the upper part of the liquid slag treatment station 01; a fixed crusher 1 is arranged at the front part of the crushing bed 3 and at the position of a slag inlet 3.3.1; the middle part of the crushing bed 3 is provided with a movable crusher 2; a slag fine crusher 5 is arranged at a slag outlet 4.3.4 at the rear part of the air cooling bed 4.
The crushing bed 3 includes: an inclined bed 3.1, a horizontal bed 3.2 and a crushing bed shell 3.3;
the horizontal bed 3.2 is horizontally arranged on the foundation and is formed by connecting a plurality of groups of crushing grid plates B3.2.1 end to end; each group of crushing grid plates B3.2.1 includes: an air inlet B3.2.1-1, an air blowing port B3.2.1-2, a grate bar B3.2.1-3 and a frame B3.2.1-4; the grate B3.2.1-3 is provided with a plurality of grate bars, and two ends of each grate bar B3.2.1-3 are arranged on the frame B3.2.1-4 and are formed by overlapping the grate bars from top to bottom; a backward air blowing port B3.2.1-2 is reserved between two adjacent grate bars B3.2.1-3; the air inlet B3.2.1-1 is positioned below the grate B3.2.1-3, and blown air is blown backwards through the air outlet B3.2.1-2;
the inclined bed 3.1 is obliquely arranged at the front part of the horizontal bed 3.2, the inclination angle is 10-50 degrees, the front end of the inclined bed is arranged on the shell wall at the front end of the crushing bed shell 3.3 and is positioned at the liquid slag treatment station 01, and the rear end of the inclined bed is lapped at the front end of the horizontal bed 3.2; the inclined bed 3.1 comprises: a plurality of groups of crushing grid plates A3.1.1 and a blowing device 3.1.2; each group of crushing grid plates A3.1.1 includes: an air inlet A3.1.1-1, an air outlet A3.1.1-2, a grate bar A3.1.1-3 and a frame A3.1.1-4; the grate A3.1.1-3 is provided with a plurality of grate bars, two ends of each grate bar A3.1.1-3 are arranged on the frame A3.1.1-4, and the right side is obliquely overlapped with the upper part and the lower part; a backward air outlet A3.1.1-2 is reserved between every two adjacent grate bars A3.1.1-3; the air inlet A3.2.1-1 is positioned below the grate bar B3.2.1-3; the blowing device 3.1.2 is arranged outside the front end of the crushing bed shell 3.3 and communicated with the inside of the shell, and the blowing device 3.1.2 blows air into the crushing bed shell 3.3, the air is blown out from the air inlet A3.1.1-1 and then from the air outlet A3.1.1-2;
the crushing bed shell 3.3 comprises: a slag inlet 3.3.1, a hot air port A3.3.2, a hot air port B3.3.3, a retaining wall 3.3.4, a shaft hole 3.3.5, a telescopic baffle 3.3.6, a baffle slideway 3.3.7, an air inlet 3.3.8 and a branch pipeline 3.3.9; the slag inlet 3.3.1 is arranged at the top end opening part of the vertical channel at the upper end of the front part of the crushing bed shell 3.3; the hot air port A3.3.2 and the hot air port B3.3.3 are arranged at the top end of the rear part of the crushing bed shell 3.3, and the hot air port B3.3.3 is sequentially connected with a crushing bed hot air dust collector 6, a crushing bed heat device 7 and a crushing bed system fan 8; a retaining wall 3.3.4 is arranged between the hot air port A3.3.2 and the hot air port B3.3.3; two horizontal baffle slideways 3.3.7 are respectively arranged on two side walls of the crushing bed shell 3.3; the baffle slide rail 3.3.7 is provided with a telescopic baffle 3.3.6; the telescopic baffle 3.3.6 is provided with at least one shaft hole 3.3.5 for assembling the movable crusher 2; the air inlets 3.3.8 are arranged at two sides of the bottom of the crushing bed shell 3.3 and communicated with the branch pipeline 3.3.9; the outlet end of the branch line 3.3.9 is positioned at the bottom of the horizontal bed 3.2;
the telescopic baffle 3.3.6 comprises a baffle body 3.3.6.1, a sliding rod 3.3.6.2 and a fixing bolt 3.3.6.3; the slide bar 3.3.6.2 is fixed on the baffle body 3.3.6.1 through a fixing bolt 3.3.6.3; the baffle body 3.3.6.1 is provided with a slide bar hole 3.3.6.1-1 and a fixing bolt hole 3.3.6.1-2; slide bar 3.3.3.2 is inserted into slide bar hole 3.3.6.1-1 and anchor bolt 3.3.6.3 is inserted into anchor bolt hole 3.3.6.1-2 to secure slide bar 3.3.3.2.
The fixed crusher 1 is arranged at a vertical channel at the lower part of the slag inlet 3.3.1;
the fixed crusher 1 is divided into a single-roller fixed crusher 1.1 and a double-roller fixed crusher 1.2;
the single-roller fixed crusher 1.1 is divided into a single-roller tooth type crusher 1.1 and a single-roller plate type crusher 1.1.2;
the double-roller fixed crusher 1.2 is divided into a double-roller tooth type crusher 1.2.1 and a double-roller plate type crusher 1.2.2;
the single roller tooth crusher 1.1.1 comprises: 1.1.1-1 parts of mandrel, 1.1.1-2 parts of roller, 1.1.1-3 parts of roller teeth and 1.1.1-4 parts of tuyere; a plurality of roller teeth 1.1.1-3 are uniformly distributed on the roller 1.1.1-2; the roller teeth 1.1.1-3 are provided with air ports 1.1.1-4; the axes of the two ends of the roller 1.1.1-2 are respectively and coaxially provided with a mandrel 1.1.1-1; the roller 1.1.1-2, the roller teeth 1.1.1-3 and the mandrel 1.1.1-1 are of a hollow structure, and the mandrel 1.1.1-1 is connected with a driving mechanism;
the single-roll plate crusher 1.1.2 comprises: 1.1.1-1 parts of mandrel, 1.1.1-2 parts of roller, 1.1.1-3 parts of board hammer and 1.1.1-4 parts of tuyere; a plurality of plate hammers 1.1.1-3' are uniformly distributed on the roller 1.1.1-2; the board hammer 1.1.1-3' is provided with a tuyere 1.1.1-4; the axes of the two ends of the roller 1.1.1-2 are respectively and coaxially provided with a mandrel 1.1.1-1; the roller 1.1.1-2, the board hammer 1.1.1-3' and the mandrel 1.1.1-1 are hollow structures, and the mandrel 1.1.1-1 is connected with a driving mechanism;
the double-roller tooth type crusher 1.2.1 is formed by horizontally arranging two single-roller tooth type crushers 1.1.1, and the roller teeth 1.1.1-3 of the two single-roller tooth type crushers 1.1 are arranged alternately;
the double-roll plate crusher 1.2.2 is formed by horizontally arranging two single-roll plate crushers 1.1.2, and the plate hammers 1.1.1-3' of the two single-roll plate crushers 1.1.2 are arranged alternately.
The movable crusher 2 is arranged on a horizontal bed 3.2
The movable crusher 2 is divided into a single-roller movable crusher 2.1 and a double-roller movable crusher 2.2;
the single-roller mobile crusher 2.1 is divided into a single-roller mobile tooth type crusher 2.1.1 and a single-roller mobile plate type crusher 2.1.2;
the double-roller mobile crusher 2.2 is divided into a double-roller mobile tooth type crusher 2.2.1 and a double-roller mobile plate type crusher 2.2.2;
the single-roller mobile tooth crusher 2.1.1 comprises: 1.1.1-1 parts of mandrel, 1.1.1-2 parts of roller, 1.1.1-3 parts of roller teeth, 1.1.1-4 parts of air port, 1.1.1-5 parts of walking mechanism, 1.1.1-6 parts of crushing roller transmission mechanism and C1.1.1-7 parts of frame; a plurality of roller teeth 1.1.1-3 are uniformly distributed on the roller 1.1.1-2, and air ports 1.1.1-4 are arranged on the roller teeth 1.1.1-3; the axes of the two ends of the roller 1.1.1-2 are respectively and coaxially provided with a mandrel 1.1.1-1; the roller 1.1.1-2, the roller teeth 1.1.1-3 and the mandrel 1.1.1-1 are hollow structures; the mandrel 1.1.1-1 is arranged on the frame C1.1.1-7 through a bearing seat; a walking mechanism 1.1.1-5 is arranged on the frame C1.1.1-7 and is used for the single-roller moving tooth-type crusher 2.1.1 to move on the horizontal bed 3.2; two ends of the mandrel 1.1.1-1 penetrate out of the crushing bed shell 3.3 through the shaft holes 3.3.5, are connected with the crushing roller transmission mechanism 1.1.1-6 and rotate under the driving of the crushing roller transmission mechanism 1.1.1-6;
the single-roller moving plate crusher 2.1.2 comprises: 1.1.1-1 parts of mandrel, 1.1.1-2 parts of roller, 1.1.1-3 parts of board hammer, 1.1.1-4 parts of air port, 1.1.1-5 parts of walking mechanism, 1.1.1-6 parts of crushing roller transmission mechanism and C1.1.1-7 parts of frame; a plurality of plate hammers 1.1.1-3 'are uniformly distributed on the roller 1.1.1-2, and air ports 1.1.1-4 are arranged on the plate hammers 1.1.1-3'; the axes of the two ends of the roller 1.1.1-2 are respectively and coaxially provided with a mandrel 1.1.1-1; the roller 1.1.1-2, the board hammer 1.1.1-3' and the mandrel 1.1.1-1 are hollow structures; the mandrel 1.1.1-1 is arranged on the frame C1.1.1-7 through a bearing seat; a walking mechanism 1.1.1-5 is arranged on the frame C1.1.1-7 and is used for moving the single-roller movable plate type crusher 2.1.2 on the horizontal bed 3.2; two ends of the mandrel 1.1.1-1 penetrate out of the crushing bed shell 3.3 through the shaft holes 3.3.5, are connected with the crushing roller transmission mechanism 1.1.1-6 and rotate under the driving of the crushing roller transmission mechanism 1.1.1-6;
the double-roller movable tooth type crusher 2.2.1 is formed by horizontally arranging two single-roller movable tooth type crushers 2.1.1;
the twin-roll moving plate crusher 2.2.2 is horizontally arranged by a single-roll moving plate crusher 2.1.2.
The liquid slag treatment station 01 comprises: a tundish 011 and a slag guide groove 012; the tail end of the slag guide groove 012 is arranged on the shell at the front end of the crushing bed shell 3.3 and is communicated with the inside of the crushing bed shell 3.3; the tundish 011 is arranged above the head end of the slag guide groove 012; the slag guide groove 012 is high at the head end and low at the tail end, and has an included angle of 3-8 degrees in the horizontal direction.
The solid slag treatment station 02 comprises: is positioned above the slag inlet 3.3.1; after the solid dry slag is poured out of the steel slag at the solid slag treatment station 02, the movable slag cover 03 is started to cover the slag inlet 3.3.1, so that excessive cold air is prevented from entering and the temperature of the flue gas is prevented from being reduced; when the slag pot contains large-size low-temperature residual steel blocks, the fixed crusher 1 runs reversely, and the low-temperature residual steel blocks are discharged from the side cover 04.
The steel slag fine crusher 5 comprises: the device comprises a transmission 5.1, an air inlet C5.2, a hollow shaft 5.3, a shaft sleeve 5.4, a shaft sleeve air outlet 5.5, a mandrel air outlet 5.6, a hollow shaft surface air outlet 5.7 and a bracket 5.8; a shaft sleeve air outlet 5.5 is formed in the surface of the shaft sleeve 5.4, and the shaft sleeve 5.4 is sleeved on the hollow shaft 5.3; both ends of the hollow shaft 5.3 are arranged at a slag outlet 4.3.4 part of the air cooling bed 4 through a bracket 5.8; one end of the hollow shaft 5.3 is provided with an air inlet C5.2, and the other end is provided with a mandrel air outlet 5.6; one end of the hollow shaft 5.3 is connected with the transmission 5.1; the shaft sleeve 5.4 is divided into a long shaft sleeve 5.4.1 and a short shaft sleeve 5.4.2, the long shaft sleeve 5.4.1 and the short shaft sleeve 5.4.2 are arranged at intervals to form a shaft sleeve 5.4 which is sleeved on the hollow mandrel 5.3; the cold air passes through the air holes distributed on the surface of the hollow shaft 5.3 and the shaft sleeve air outlet 5.5 on the shaft sleeve 5.4 to cool the shaft sleeve 5.4 body and the steel slag.
The hot air dust remover 6 of the crushing bed adopts a cyclone dust remover and is respectively connected with a hot air outlet 3.3.3 of the crushing bed and a thermal device 7 for the crushing bed through pipelines; the thermal equipment 7 for the crushing bed is one of scrap steel preheating channels of a continuous casting ladle, a tundish, a steel ladle and an electric furnace, and a converter heating scrap steel channel; the fan 8 of the crushing system adopts a negative pressure fan, is connected with the thermal equipment 7 for the crushing bed through a pipeline, and the purified tail gas is discharged to the air.
The working method of the steel slag roller type crushing, air quenching, cooling and dry processing device comprises the following steps:
1. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
2. solid slag feeding: opening the movable slag cover 03, pouring solid steel slag into the solid slag processing station 02 from the slag inlet 3.3.1, and simultaneously closing the movable slag cover 03 to prevent excessive cold air from entering to reduce the temperature of flue gas;
3. solid slag treatment: after solid steel slag enters a solid slag treatment station 02, the solid steel slag is initially crushed by a fixed crusher 1, when a slag tank contains large-size uncrushed low-temperature residual steel blocks, the fixed crusher 1 reversely operates, and the low-temperature residual steel blocks are discharged from a side cover 04;
4. crushing by a crushing bed: the steel slag after initial crushing falls into the inclined bed 3.1, is conveyed forwards by the crushing grate A3.1.1, meanwhile, is assisted by the blowing device to move forwards, and is subjected to cooling treatment; the steel slag falls onto a horizontal bed 3.2 after passing through an inclined bed 3.1 and is conveyed forwards through a crushing grid plate B3.2.1, and meanwhile, compressed gas is sprayed out from a grid plate air outlet 3.2.1-2 through a crushing bed air inlet 3.3.8 and a branch pipeline 3.3.9 to carry out air quenching and cooling on the steel slag; the movable crusher 2 arranged on the crushing bed 3 crushes the steel slag again; the crushed steel slag is conveyed to an air cooling bed 4 by a crushing bed 3;
5. air cooling of steel slag: the steel slag enters the air-cooled bed 4, the air-cooled bed 4 continuously cools the steel slag while conveying the steel slag downstream, and the cooled steel slag falls to the lower part through the slag outlet 4.3.4;
6. fine crushing treatment: the steel slag is discharged through the slag outlet 4.3.4 and is crushed again by the steel slag fine crusher 5 disposed at the slag outlet 4.3.4.
Example 2
As shown in the figure, (on the basis of embodiment 1), the invention also provides an operating method of the steel slag roller-type crushing, air quenching, cooling and dry processing device, which comprises the following steps:
1. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
2. feeding liquid slag: pouring liquid steel slag into a crushing bed shell 3.3 from a liquid slag treatment station 01 through a slag guide groove 012 and dropping onto an inclined bed 3.1;
3. crushing by a crushing bed: the steel slag after initial crushing falls into the inclined bed 3.1, is conveyed forwards by the crushing grate A3.1.1, meanwhile, is assisted by the blowing device to move forwards, and is subjected to cooling treatment; the steel slag falls onto a horizontal bed 3.2 after passing through an inclined bed 3.1 and is conveyed forwards through a crushing grid plate B3.2.1, and meanwhile, compressed gas is sprayed out from a grid plate air outlet 3.2.1-2 through a crushing bed air inlet 3.3.8 and a branch pipeline 3.3.9 to carry out air quenching and cooling on the steel slag; the movable crusher 2 arranged on the crushing bed 3 crushes the steel slag again; the crushed steel slag is conveyed to an air cooling bed 4 by a crushing bed 3;
4. air cooling of steel slag: the steel slag enters the air-cooled bed 4, the air-cooled bed 4 continuously cools the steel slag while conveying the steel slag downstream, and the cooled steel slag falls to the lower part through the slag outlet 4.3.4;
5. fine crushing treatment: the steel slag is discharged through the slag outlet 4.3.4 and is crushed again by the steel slag fine crusher 5 disposed at the slag outlet 4.3.4.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A roller type crushing, air quenching, cooling and dry processing device for steel slag comprises: an air cooling bed (4), an air cooling bed hot air dust remover (6 '), a hot device (7 ') for the air cooling bed and an air cooling bed system fan (8 '); the air cooling bed (4) consists of one of a self-feeding material bed (4.1) and other feeding material beds (4.2) and an air cooling bed shell (4.3) arranged outside the air cooling bed; the air-cooled bed housing (4.3) comprises: a hot air port A (4.3.1) and a hot air port B (4.3.2) which are arranged at the top of the slag tapping hole and a slag tapping hole (4.3.4) which is arranged at the lower part of the tail end of the slag tapping hole; the outside of the hot air port A (4.3.1) and the outside of the hot air port B (4.3.2) are sequentially connected and assembled with an air cooling bed hot air dust collector (6 '), hot equipment (7 ') for an air cooling bed and an air cooling bed system fan (8 '); the method is characterized in that:
the steel slag roller type crushing, air quenching, cooling and dry processing device further comprises: a liquid slag treatment station (01), a solid slag treatment station (02), a movable slag cover (03), a side cover (04), a fixed crusher (1), a movable crusher (2), a crushing bed (3) and a steel slag fine crusher (5);
the crushing bed (3) is arranged at the front end station of the air cooling bed (4) and is communicated with the air cooling bed (4);
a slag inlet (3.3.1) is arranged at the top of the front end of the crushing bed (3), and a movable slag cover (03) is arranged on the slag inlet (3.3.1);
a solid slag treatment station (02) is arranged at the upper part of the slag inlet (3.3.1), and solid steel slag enters the crushing bed (3) from the slag inlet (3.3.1);
a liquid slag treatment station (01) is arranged in the middle of the front end face of the crushing bed (3), and liquid steel slag enters the crushing bed (3) from the liquid slag treatment station (01);
a side cover (04) is arranged on the front end surface of the crushing bed (3), and the side cover (04) is positioned at the upper part of the liquid slag treatment station (01);
a fixed crusher (1) is arranged at the front part of the crushing bed (3) and the slag inlet (3.3.1);
a movable crusher (2) is arranged in the middle of the crushing bed (3);
and a slag fine crusher (5) is arranged at a slag outlet (4.3.4) at the rear part of the air cooling bed (4).
2. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 1, which is characterized in that:
the crushing bed (3) comprises: an inclined bed (3.1), a horizontal bed (3.2) and a crushing bed shell (3.3);
the horizontal bed (3.2) is horizontally arranged on the foundation and is formed by connecting a plurality of groups of crushing grate plates B (3.2.1) end to end; each group of crushing grid plates B (3.2.1) comprises: an air inlet B (3.2.1-1), a blowing port B (3.2.1-2), a grate bar B (3.2.1-3) and a frame B (3.2.1-4); the grate bars B (3.2.1-3) are multiple, and two ends of each grate bar B (3.2.1-3) are arranged on the frame B (3.2.1-4) and are formed by overlapping the front part and the rear part; a backward air blowing port B (3.2.1-2) is reserved between two adjacent grate bars B (3.2.1-3); the air inlet B (3.2.1-1) is positioned below the grate bar B (3.2.1-3), and blown air is blown backwards from the air outlet B (3.2.1-2);
the inclined bed (3.1) is obliquely arranged at the front part of the horizontal bed (3.2) at an inclination angle of 10-50 degrees, the front end of the inclined bed is arranged on the shell wall at the front end of the crushing bed shell (3.3) and is positioned at the liquid slag treatment station (01), and the rear end of the inclined bed is lapped at the front end of the horizontal bed (3.2); the inclined bed (3.1) comprises: a plurality of groups of crushing grid plates A (3.1.1) and blowing devices (3.1.2); each group of crushing grid plates A (3.1.1) comprises: an air inlet A (3.1.1-1), an air outlet A (3.1.1-2), a grate bar A (3.1.1-3) and a frame A (3.1.1-4); the grate bars A (3.1.1-3) are multiple, two ends of each grate bar A (3.1.1-3) are arranged on the frame A (3.1.1-4), and the grate bars A are formed by obliquely lapping the right front part, the upper part and the rear part; a backward air outlet A (3.1.1-2) is reserved between two adjacent grate bars A (3.1.1-3); the air inlet A (3.2.1-1) is positioned below the grate bar B (3.2.1-3); the blowing device (3.1.2) is arranged outside the front end of the crushing bed shell (3.3) and communicated with the inside of the shell, and the blowing device (3.1.2) blows air into the crushing bed shell (3.3), the air is blown out from the air inlet A (3.1.1-1) and then blown out from the air outlet A (3.1.1-2);
the crushing bed shell (3.3) comprises: a slag inlet (3.3.1), a hot air port A (3.3.2), a hot air port B (3.3.3), a retaining wall (3.3.4), a shaft hole (3.3.5), a telescopic baffle (3.3.6), a baffle slide way (3.3.7), an air inlet (3.3.8) and a branch pipeline (3.3.9); the slag inlet (3.3.1) is arranged at the top end opening part of the vertical channel at the upper end of the front part of the crushing bed shell (3.3); the hot air port A (3.3.2) and the hot air port B (3.3.3) are arranged at the top end of the rear part of the crushing bed shell (3.3), and the hot air port B (3.3.3) is sequentially connected with a crushing bed hot air dust remover (6), a crushing bed heat device (7) and a crushing bed system fan (8); a retaining wall (3.3.4) is arranged between the hot air port A (3.3.2) and the hot air port B (3.3.3); two side walls of the crushing bed shell (3.3) are respectively provided with a horizontal baffle plate slideway (3.3.7); the baffle slide way (3.3.7) is provided with a telescopic baffle (3.3.6); the telescopic baffle (3.3.6) is provided with at least one shaft hole (3.3.5) for assembling the movable crusher (2); the air inlets (3.3.8) are arranged at two sides of the bottom of the crushing bed shell (3.3) and communicated with the branch pipeline (3.3.9); the outlet end of the branch pipeline (3.3.9) is positioned at the bottom of the horizontal bed (3.2);
the telescopic baffle (3.3.6) comprises a baffle body (3.3.6.1), a sliding rod (3.3.6.2) and a fixing bolt (3.3.6.3); the sliding rod (3.3.6.2) is fixed on the baffle body (3.3.6.1) through a fixing bolt (3.3.6.3); the baffle body (3.3.6.1) is provided with a slide bar hole (3.3.6.1-1) and a fixed bolt hole (3.3.6.1-2); the slide bar (3.3.3.2) is inserted into the slide bar hole (3.3.6.1-1), and the fixing bolt (3.3.6.3) is inserted into the fixing bolt hole (3.3.6.1-2) to fix the slide bar (3.3.3.2).
3. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 1, which is characterized in that:
the fixed crusher (1) is arranged at a vertical channel at the lower part of the slag inlet (3.3.1);
the fixed crusher (1) is divided into a single-roller fixed crusher (1.1) and a double-roller fixed crusher (1.2);
the single-roller fixed crusher (1.1) is divided into a single-roller tooth type crusher (1.1.1) and a single-roller plate type crusher (1.1.2);
the double-roller fixed crusher (1.2) is divided into a double-roller tooth type crusher (1.2.1) and a double-roller plate type crusher (1.2.2);
the single roller tooth crusher (1.1.1) comprises: a mandrel (1.1.1-1), a roller (1.1.1-2), roller teeth (1.1.1-3) and a tuyere (1.1.1-4); a plurality of roller teeth (1.1.1-3) are uniformly distributed on the roller (1.1.1-2); the roll teeth (1.1.1-3) are provided with air ports (1.1.1-4); the axes of the two ends of the roller (1.1.1-2) are respectively and coaxially provided with a mandrel (1.1.1-1); the roller (1.1.1-2), the roller teeth (1.1.1-3) and the mandrel (1.1.1-1) are of a hollow structure, and the mandrel (1.1.1-1) is connected with a driving mechanism;
the single-roll plate crusher (1.1.2) comprises: a mandrel (1.1.1-1), a roller (1.1.1-2), a board hammer (1.1.1-3'), and a tuyere (1.1.1-4); a plurality of plate hammers (1.1.1-3') are uniformly distributed on the roller (1.1.1-2); the plate hammer (1.1.1-3') is provided with an air port (1.1.1-4); the axes of the two ends of the roller (1.1.1-2) are respectively and coaxially provided with a mandrel (1.1.1-1); the roller (1.1.1-2), the plate hammer (1.1.1-3') and the mandrel (1.1.1-1) are of hollow structures, and the mandrel (1.1.1-1) is connected with a driving mechanism;
the double-roller tooth type crusher (1.2.1) is formed by horizontally arranging two single-roller tooth type crushers (1.1.1), and the roller teeth (1.1.1-3) of the two single-roller tooth type crushers (1.1.1) are arranged alternately;
the double-roller plate crusher (1.2.2) is formed by horizontally arranging two single-roller plate crushers (1.1.2), and plate hammers (1.1.1-3') of the two single-roller plate crushers (1.1.2) are arranged at intervals in a cross way.
4. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 1, which is characterized in that:
the movable crusher (2) is arranged on the horizontal bed (3.2)
The movable crusher (2) is divided into a single-roller movable crusher (2.1) and a double-roller movable crusher (2.2);
the single-roller mobile crusher (2.1) is divided into a single-roller mobile tooth type crusher (2.1.1) and a single-roller mobile plate type crusher (2.1.2);
the double-roller mobile crusher (2.2) is divided into a double-roller mobile tooth type crusher (2.2.1) and a double-roller mobile plate type crusher (2.2.2);
the single roller mobile tooth crusher (2.1.1) comprises: a mandrel (1.1.1-1), a roller (1.1.1-2), roller teeth (1.1.1-3), a tuyere (1.1.1-4), a traveling mechanism (1.1.1-5), a crushing roller transmission mechanism (1.1.1-6) and a frame C (1.1.1-7); a plurality of roller teeth (1.1.1-3) are uniformly distributed on the roller (1.1.1-2), and air ports (1.1.1-4) are arranged on the roller teeth (1.1.1-3); the axes of the two ends of the roller (1.1.1-2) are respectively and coaxially provided with a mandrel (1.1.1-1); the roller (1.1.1-2), the roller teeth (1.1.1-3) and the mandrel (1.1.1-1) are of hollow structures; the mandrel (1.1.1-1) is arranged on the frame C (1.1.1-7) through a bearing seat; a walking mechanism (1.1.1-5) is arranged on the frame C (1.1.1-7) and is used for moving the single-roller movable tooth type crusher (2.1.1) on the horizontal bed (3.2); two ends of the mandrel (1.1.1-1) penetrate out of the crushing bed shell (3.3) through the shaft hole (3.3.5) and are connected with the crushing roller transmission mechanism (1.1.1-6) and driven by the crushing roller transmission mechanism (1.1.1-6) to rotate;
the single-roll moving plate crusher (2.1.2) comprises: a mandrel (1.1.1-1), a roller (1.1.1-2), a board hammer (1.1.1-3'), a tuyere (1.1.1-4), a traveling mechanism (1.1.1-5), a crushing roller transmission mechanism (1.1.1-6) and a frame C (1.1.1-7); a plurality of plate hammers (1.1.1-3') are uniformly distributed on the roller (1.1.1-2), and air ports (1.1.1-4) are arranged on the plate hammers (1.1.1-3'); the axes of the two ends of the roller (1.1.1-2) are respectively and coaxially provided with a mandrel (1.1.1-1); the roller (1.1.1-2), the plate hammer (1.1.1-3') and the mandrel (1.1.1-1) are of hollow structures; the mandrel (1.1.1-1) is arranged on the frame C (1.1.1-7) through a bearing seat; a walking mechanism (1.1.1-5) is arranged on the frame C (1.1.1-7) and is used for moving the single-roller movable plate type crusher (2.1.2) on the horizontal bed (3.2); two ends of the mandrel (1.1.1-1) penetrate out of the crushing bed shell (3.3) through the shaft hole (3.3.5) and are connected with the crushing roller transmission mechanism (1.1.1-6) and driven by the crushing roller transmission mechanism (1.1.1-6) to rotate;
the double-roller mobile tooth type crusher (2.2.1) is formed by horizontally arranging two single-roller mobile tooth type crushers (2.1.1);
the double-roller movable plate crusher (2.2.2) is formed by horizontally arranging a single-roller movable plate crusher (2.1.2).
5. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 1, which is characterized in that:
the liquid slag treatment station (01) comprises: a tundish (011) and a slag guide groove (012);
the tail end of the slag guide groove (012) is arranged on the shell at the front end of the crushing bed shell (3.3) and is communicated with the inside of the crushing bed shell (3.3);
the tundish (011) is arranged above the head end of the slag guide groove (012);
the slag guide groove (012) is high at the head end and low at the tail end, and has an included angle of 3-8 degrees in the horizontal direction.
6. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 2, which is characterized in that:
the solid slag treatment station (02) comprises: is positioned above the slag inlet (3.3.1); after pouring out the steel slag from the solid dry slag at the solid slag processing station (02), starting a movable slag cover (03) to cover a slag inlet (3.3.1) and prevent excessive cold air from entering to reduce the temperature of flue gas; when the slag pot contains large-size low-temperature residual steel blocks, the fixed crusher (1) runs reversely, and the low-temperature residual steel blocks are discharged from the side cover (04).
7. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 1, which is characterized in that:
the steel slag fine crusher (5) comprises: the device comprises a transmission (5.1), an air inlet C (5.2), a hollow shaft (5.3), a shaft sleeve (5.4), a shaft sleeve air outlet (5.5), a mandrel air outlet (5.6), a hollow shaft surface air outlet (5.7) and a bracket (5.8); a shaft sleeve air outlet (5.5) is formed in the surface of the shaft sleeve (5.4), and the shaft sleeve (5.4) is sleeved on the hollow shaft (5.3); both ends of the hollow shaft (5.3) are arranged at a slag outlet (4.3.4) part of the air cooling bed (4) through a bracket (5.8); one end of the hollow shaft (5.3) is provided with an air inlet C (5.2), and the other end is provided with a mandrel air outlet (5.6); one end of the hollow shaft (5.3) is connected with the transmission (5.1);
the shaft sleeve (5.4) is divided into a long shaft sleeve (5.4.1) and a short shaft sleeve (5.4.2), the long shaft sleeve (5.4.1) and the short shaft sleeve (5.4.2) are arranged at intervals to form the shaft sleeve (5.4) which is sleeved on the hollow mandrel (5.3); the cold air passes through the air holes distributed on the surface of the hollow shaft (5.3) and the outlet of the shaft sleeve air outlet (5.5) on the shaft sleeve (5.4) to cool the shaft sleeve (5.4) body and cool the steel slag.
8. The steel slag roller-type crushing, air-quenching and cooling dry processing device of claim 2, which is characterized in that:
the hot air dust remover (6) of the crushing bed adopts a cyclone dust remover and is respectively connected with a hot air outlet (3.3.3) of the crushing bed and a thermal device (7) for the crushing bed through pipelines;
the heat equipment (7) for the crushing bed is one of scrap steel preheating channels of a continuous casting ladle, a tundish, a steel ladle and an electric furnace, and a scrap steel heating channel of a converter;
the fan (8) of the crushing system adopts a negative pressure fan, is connected with the thermal equipment (7) for the crushing bed through a pipeline, and the purified tail gas is discharged to the air.
9. The working method of the roller crushing, air quenching, cooling and dry processing device for the steel slag as claimed in any of claims 1 to 8 is characterized in that:
the working method comprises the following steps:
91. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
92. solid slag feeding: opening a movable slag cover (03), pouring solid steel slag into a solid slag treatment station (02) from a slag inlet (3.3.1), and closing the movable slag cover (03) to prevent excessive cold air from entering and reduce the temperature of flue gas;
93. solid slag treatment: after solid steel slag enters a solid slag treatment station (02), the solid steel slag is initially crushed by a fixed crusher (1), when a slag tank contains large-size uncrushed low-temperature residual steel blocks, the fixed crusher (1) reversely operates, and the low-temperature residual steel blocks are discharged from a side cover (04);
94. crushing by a crushing bed: the steel slag after initial crushing falls onto an inclined bed (3.1), is conveyed forwards by a crushing grate plate A (3.1.1), meanwhile, is assisted by a blowing device to move forwards, and is subjected to cooling treatment; the steel slag falls onto a horizontal bed (3.2) after passing through an inclined bed (3.1), is conveyed forwards through a crushing grate plate B (3.2.1), and meanwhile, compressed gas is sprayed out from a grate plate air outlet (3.2.1-2) through a crushing bed air inlet (3.3.8) and a branch pipeline (3.3.9) to carry out air quenching and cooling on the steel slag; the movable crusher (2) arranged on the crushing bed (3) is used for crushing the steel slag again; the crushed steel slag is conveyed to an air cooling bed (4) by a crushing bed (3);
95. air cooling of steel slag: the steel slag enters the air-cooled bed (4), the air-cooled bed (4) continuously cools the steel slag while conveying the steel slag to the downstream, and the cooled steel slag falls down from a slag outlet (4.3.4) and is discharged;
96. fine crushing treatment: the steel slag is discharged from the slag outlet (4.3.4) and is crushed again by the steel slag fine crusher (5) arranged at the slag outlet (4.3.4).
10. The working method of the roller crushing, air quenching, cooling and dry processing device for the steel slag as claimed in any of claims 1 to 8 is characterized in that:
the working method comprises the following steps:
91. starting up preparation: starting a power supply of the equipment, and observing whether each part is normally started;
102. feeding liquid slag: pouring liquid steel slag into a crushing bed shell (3.3) from a liquid slag treatment station (01) through a slag guide groove (012) and dropping onto an inclined bed (3.1);
103. crushing by a crushing bed: the steel slag after initial crushing falls onto an inclined bed (3.1), is conveyed forwards by a crushing grate plate A (3.1.1), meanwhile, is assisted by a blowing device to move forwards, and is subjected to cooling treatment; the steel slag falls onto a horizontal bed (3.2) after passing through an inclined bed (3.1), is conveyed forwards through a crushing grate plate B (3.2.1), and meanwhile, compressed gas is sprayed out from a grate plate air outlet (3.2.1-2) through a crushing bed air inlet (3.3.8) and a branch pipeline (3.3.9) to carry out air quenching and cooling on the steel slag; the movable crusher (2) arranged on the crushing bed (3) is used for crushing the steel slag again; the crushed steel slag is conveyed to an air cooling bed (4) by a crushing bed (3);
104. air cooling of steel slag: the steel slag enters the air-cooled bed (4), the air-cooled bed (4) continuously cools the steel slag while conveying the steel slag to the downstream, and the cooled steel slag falls down from a slag outlet (4.3.4) and is discharged;
105. fine crushing treatment: the steel slag is discharged from the slag outlet (4.3.4) and is crushed again by the steel slag fine crusher (5) arranged at the slag outlet (4.3.4).
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| CN115522001A (en) * | 2022-10-10 | 2022-12-27 | 许工雄 | Dry treatment method for stainless steel slag |
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