CN105115612A - Rotary kiln temperature detection device - Google Patents
Rotary kiln temperature detection device Download PDFInfo
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- CN105115612A CN105115612A CN201510617969.8A CN201510617969A CN105115612A CN 105115612 A CN105115612 A CN 105115612A CN 201510617969 A CN201510617969 A CN 201510617969A CN 105115612 A CN105115612 A CN 105115612A
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- Prior art keywords
- push rod
- thermometer hole
- drive unit
- drive
- rotary kiln
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a rotary kiln temperature detection device. When a temperature detecting hole is about to be in a non-material area, a thermocouple is inserted into the temperature detecting hole under the driving of a second driving device to detect the temperature; when the temperature detecting hole is about to be in a material area, the second driving device pulls the thermocouple out of the temperature detecting hole of a rotary kiln, a third driving device drives a first fixing back plate to move horizontally, and an insert rod moves to the part over the temperature detecting hole, and then, the insert rod is inserted into the temperature detecting hole under the driving of a first driving device and plugs the temperature detecting hole to prevent the leakage of materials. Only when the temperature detecting hole is about to be in the non-material area, the thermocouple is inserted into the temperature detecting hole to detect the temperature, the phenomenon that the thermocouple is subjected to the rolling friction or flue gas air-flow impact of the high-temperature materials due to the too much contact with the high-temperature materials can be prevented, so that the service life of the thermocouple is improved, and the reliability and accuracy of temperature detection are improved.
Description
Technical field
The present invention relates to rotary kiln thermometry field, in particular, relate to a kind of kiln temperature pick-up unit.
Background technology
Rotary kiln is a kind of Thermal Equipment of material being carried out to drying, roasting and calcining, in the production run participated in there being rotary kiln device, the calcining of material is all often an extremely important procedure in technological process, and rotary kiln is a kind of cylindrical shape high temperature kiln body of tilted-putted continuous rotation.According to concrete technology environment and requirement, height and the control overflow of different rotary kiln kiln temperatures are all different, but their structure composition is substantially the same, is all made up of steel kiln shell and refractory lining, and its characteristics of heat transfer is substantially the same.
The whether suitable quality directly affecting material calcining quality of calcining heat due to rotary kiln, therefore, temperature survey in rotary kiln and temperature control the safe operation of the process conditions ensureing to produce, equipment and energy-conservationly to have great importance, so, all the time, the Measurement & Control of kiln temperature is all the difficult problem that insider pays close attention to.
As shown in Figure 1; traditional kiln temperature measurement mechanism be along rotary kiln kiln shell in kiln through the pre-buried high temperature resistant protective casing of refractory masses; and thermopair is inserted in mounting hole; thermopair and high temperature protection rotation of sleeve, to the temperature directly can measuring flue gas in rotary kiln during non-material region, can measure the temperature of material in rotary kiln when turning to bottom material.In this temperature-detecting device; insert thermopair in kiln and high temperature protection sleeve pipe because being subject to the rolling friction of high-temperature material, gas shock or thermopair inner end and kiln inside surface contact position has fused mass to form the reasons such as block; easy damage thus lose reliability and the accuracy of detection; therefore; traditional kiln temperature measurement mechanism is difficult to ensure longer serviceable life, thus loses reliability and the accuracy of thermometric.
Summary of the invention
In view of this, the invention provides a kind of kiln temperature pick-up unit, be difficult to ensure longer serviceable life to overcome temperature measuring equipment of the prior art, thus lose the problem of thermometric reliability and accuracy.
For achieving the above object, the invention provides following technical scheme:
A kind of kiln temperature pick-up unit, comprising: the first stationary backplate, described first stationary backplate is positioned at above the side of the thermometer hole that rotary kiln outer wall is offered; Be arranged on the first drive unit and second drive unit of described first stationary backplate the same face, described first drive unit and the second drive unit be arranged in parallel, and described first drive unit is provided with slotting skewer, and described second drive unit is provided with thermopair; The 3rd drive unit be connected with described first stationary backplate, described 3rd drive unit is fixed on described rotary kiln outer wall by the second stationary backplate, described first stationary backplate is driven to do horizontal reciprocating movement, described slotting skewer is made to move to directly over described thermometer hole, and under the drive of described first drive unit, insert described thermometer hole carry out stretching motion, or, described thermopair is moved to directly over described thermometer hole, and under the drive of described second drive unit, inserts described thermometer hole carry out thermometric.
Preferably, in above-mentioned kiln temperature pick-up unit, described first drive unit comprises: the first cylinder, first piston push rod, described first cylinder is connected with described stationary backplate, one end and described first cylinders of described first piston push rod connect, the other end is connected with described slotting skewer, described first cylinder drives described first piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, accordingly, described slotting skewer inserts described thermometer hole and carries out stretching motion under the drive of described first piston push rod;
Described second drive unit comprises: the second cylinder, second piston push rod, described second cylinder is connected with described stationary backplate, one end and described second cylinders of described second piston push rod connect, the other end is connected with described thermopair, described second cylinder drives described second piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described thermopair inserts in described thermometer hole and carries out thermometric under the drive of described second piston push rod.
Preferably, in above-mentioned kiln temperature pick-up unit, described first drive unit comprises: the first electric pushrod assembly, first push rod, described first electric pushrod assembly is connected with described stationary backplate, one end of described first push rod is connected with described first electric pushrod assembly, the other end is connected with described slotting skewer, described first electric pushrod assembly drives described first push rod to carry out stretching motion along the bearing of trend of described thermometer hole, accordingly, described slotting skewer inserts described thermometer hole and carries out stretching motion under the drive of described first push rod;
Described second drive unit comprises: the second electric pushrod assembly, second push rod, described second electric pushrod assembly is connected with described stationary backplate, one end of described second push rod is connected with described second electric pushrod assembly, the other end is connected with described thermopair, described second electric pushrod assembly drives described second push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described thermopair inserts in described thermometer hole and carries out thermometric under the drive of described second push rod.
Preferably, in above-mentioned kiln temperature pick-up unit, described slotting skewer stretches out through described thermometer hole under the drive of first piston push rod or the first push rod, gos deep into rotary kiln inside, and the distance of the end distance rotary kiln inwall that described slotting skewer gos deep in rotary kiln is 10-50mm; Described slotting skewer is retracted in thermometer hole under the drive of first piston push rod or the first push rod, and the distance of the end distance rotary kiln inwall of described slotting skewer in thermometer hole is 10-50mm.
Preferably, in above-mentioned kiln temperature pick-up unit, described thermopair stretches out through described thermometer hole under the drive of the second piston push rod or the second push rod, gos deep into rotary kiln inside and carries out thermometric, and the distance that described thermopair gos deep into the end distance rotary kiln inwall of rotary kiln inside is 10-150mm.
Preferably, in above-mentioned kiln temperature pick-up unit, also comprise: be arranged on the position switch on rotary kiln, the control module be connected with described position switch, described control module is connected with the 3rd drive unit with described first drive unit, the second drive unit respectively; When described position switch detects that thermometer hole is about to be positioned on rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit, drive described first stationary backplate to do horizontal reciprocating movement, make described thermopair be positioned at directly over described thermometer hole; When described position switch detects that thermometer hole is about to be positioned under rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit, drive described first stationary backplate to do horizontal reciprocating movement, described slotting skewer is positioned at directly over described thermometer hole.
Preferably, in above-mentioned kiln temperature pick-up unit, described 3rd drive unit comprises: the 3rd cylinder, 3rd piston push rod, described 3rd cylinder is arranged in the second stationary backplate, described second stationary backplate is vertically arranged on rotary kiln outer wall through base device, and one end and described 3rd cylinders of described 3rd piston push rod connect, and the other end is connected with described first stationary backplate by an expansion link; Described 3rd piston push rod moves reciprocatingly in the horizontal direction under the drive of described 3rd cylinder, the described expansion link be connected is moved reciprocatingly in the horizontal direction, drive described first stationary backplate to do horizontal reciprocating movement with described 3rd piston push rod.
Preferably, in above-mentioned kiln temperature pick-up unit, described 3rd drive unit comprises: the 3rd electric pushrod assembly, 3rd push rod, described 3rd electric pushrod assembly is arranged in the second stationary backplate, described second stationary backplate is vertically arranged on rotary kiln outer wall through base device, and one end of described 3rd push rod is connected with described 3rd electric pushrod assembly, and the other end is connected with described first stationary backplate by an expansion link; Described 3rd push rod moves reciprocatingly in the horizontal direction under the drive of described 3rd electric pushrod assembly, the described expansion link be connected is moved reciprocatingly in the horizontal direction, drive described first stationary backplate to do horizontal reciprocating movement with described 3rd push rod.
Preferably, in above-mentioned kiln temperature pick-up unit, also comprise:
Be arranged in parallel with described first stationary backplate, be vertically arranged on the support bar coordinated on rotary kiln outer wall and with described expansion link.
Preferably, in above-mentioned kiln temperature pick-up unit, described control module is also connected with thermopair, and the temperature signal recorded is transferred to described control module by described thermopair.
Preferably, in above-mentioned kiln temperature pick-up unit, the shape of described thermometer hole is cylindrical or reverse frustoconic.
Known via above-mentioned technical scheme, compared with prior art, kiln temperature pick-up unit disclosed by the invention, only when thermometer hole is about to be positioned at non-material region, described thermopair just inserts in described thermometer hole under the drive of described second drive unit, carries out thermometric; And when thermometer hole is about to be positioned at material region, the thermometer hole of described thermopair from rotary kiln is extracted out by described second drive unit, 3rd drive unit drives described first stationary backplate to move horizontally, slotting skewer is made to move to directly over described thermometer hole, then, described slotting skewer inserts described thermometer hole under the drive of described first drive unit, and blocks thermometer hole, prevents material from leaking outside.Due to the kiln temperature pick-up unit in the present invention, only when thermometer hole is about to be positioned at non-material region, just thermopair is inserted in described thermometer hole and carry out thermometric, thermopair can be avoided with too much contact of high-temperature material to be subject to the rolling friction of high-temperature material or flue gas stream is impacted, improve the serviceable life of thermopair, the formation simultaneously thermopair inner end and kiln inside surface contact position can being avoided to have fused mass to lump, improves reliability and the accuracy of thermometric.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is a kind of disclosed in prior art structural representation of kiln temperature measurement mechanism;
The front view of Fig. 2 a kind of kiln temperature pick-up unit disclosed in the embodiment of the present invention one;
The front view of Fig. 3 another kind of kiln temperature pick-up unit disclosed in the embodiment of the present invention one;
Fig. 4 disclosed in the embodiment of the present invention two a kind of thermopair driven by electric pushrod just to the front view of the kiln temperature pick-up unit of thermometer hole;
Fig. 5 is that the embodiment of the present invention two another slotting skewer driven by electric pushrod disclosed is just to the front view of the kiln temperature pick-up unit of thermometer hole.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
Embodiment one
Refer to accompanying drawing 2 and accompanying drawing 3, a kind of structural representation of front view of kiln temperature pick-up unit disclosed in the embodiment of the present invention one; Accompanying drawing 2 be thermopair just to the structure of thermometer hole, accompanying drawing 3 be insert skewer just to the structure of thermometer hole;
A kind of kiln temperature pick-up unit provided by the invention, comprising:
First stationary backplate 1, described first stationary backplate 1 is positioned at above the side of the thermometer hole that rotary kiln outer wall is offered; Be arranged on the first drive unit 2 and the second drive unit 4 of described first stationary backplate 1 the same face, described first drive unit 2 and the second drive unit 4 be arranged in parallel, described first drive unit 2 is provided with slotting skewer 3, described second drive unit 4 is provided with thermopair 5;
The 3rd drive unit 6 be connected with described first stationary backplate 1, described 3rd drive unit 6 is fixed on rotary kiln outer wall by the second stationary backplate 7, described first stationary backplate 1 is driven to do horizontal reciprocating movement, described slotting skewer 3 is made to move to directly over described thermometer hole, namely the bearing of trend inserting skewer 3 aims at thermometer hole, and under the drive of described first drive unit 2, insert described thermometer hole carry out stretching motion, or, described thermopair 5 is made to move to directly over described thermometer hole, namely the bearing of trend of thermopair 5 aims at thermometer hole, and under the drive of described second drive unit 4, insert described thermometer hole carry out thermometric.
Slotting skewer 3 in the application or thermopair 5 are consumable accessory, and belong to field-replaceable unit, itself and drive unit junction adopt Active Interface, bolt or screw fastening pattern, so that change and fix.Be arranged with protective casing outside thermopair 5 in the application, high-temperature material can be reduced to the friction of thermopair 5 or flue gas stream to the impact of thermopair 5.
In the embodiment of the present invention one, because the rotation of thermometer hole along with rotary kiln is rotated, only be about to be positioned at non-material region at thermometer hole, namely when thermometer hole is about to turn on material, described thermopair 5 just inserts in described thermometer hole under the drive of described second drive unit 4, carries out thermometric;
And be about to be positioned at material region at thermometer hole, namely when thermometer hole is about to turn under material, the thermometer hole of described thermopair 5 from rotary kiln is extracted out by described second drive unit 4, 3rd drive unit 6 drives described first stationary backplate 1 to move horizontally, slotting skewer 3 is made to move to directly over described thermometer hole, aim at thermometer hole, then, described slotting skewer 3 inserts described thermometer hole under the drive of described first drive unit 2, and block thermometer hole, prevent material from leaking outside, wherein, the diameter of described slotting skewer 3 mates with thermometer hole hole internal diameter size, during to avoid that in rotary kiln, thermometer hole is in immediately below material, in material or kiln, fine powder spills,
And when thermometer hole is about to again turn on material, if there is the blocking of caking thing in described thermometer hole, then drive by the first drive unit 2 and insert skewer 3 continuous several times insertion in thermometer hole, extract, tamper is pushed open, prevent the material melts thing at thermometer hole place to be difficult to remove after long-term bonding, described insertion, the number of times extracted are preset by control module; After tamper is pushed open, first drive unit 2 drives slotting skewer 3 to extract out from thermometer hole, described 3rd drive unit 6 just can drive described first stationary backplate 1 again to move horizontally, described thermopair 5 is made to move to directly over described thermometer hole, and under the drive of described second drive unit 4, insert described thermometer hole carry out thermometric, after thermometric, described second drive unit 4 action, extracts described thermopair 5 from thermometer hole.
The above-mentioned working method for kiln temperature pick-up unit of the present invention, specific works step is not necessarily undertaken by said sequence, when need start according to the stopping of rotary kiln thermometer hole and material position relationship and determine.In rotary kiln rotation process, the position of material and thermometer hole repeatedly alternately for thermometer hole at upper or material upper, therefore, described first drive unit 2 and described second drives and fills 4 is also alternation repeatedly, and the course of work circulation of above-mentioned kiln temperature pick-up unit performs.
Concrete, kiln temperature pick-up unit disclosed in the embodiment of the present invention one is arranged on directly over thermometer hole that rotary kiln outer wall is offered, described thermometer hole can be opened in rotary kiln outer wall Anywhere, and the present invention does not limit the particular location that it is offered.
Due to existing temperature measuring device of rotary kiln be along rotary kiln kiln shell in kiln through the pre-buried high temperature resistant protective casing of refractory masses, and thermopair to be inserted in mounting hole.Thermopair and rotation of sleeve, to the temperature directly can measuring flue gas in rotary kiln during non-material region, can measure the temperature of material in rotary kiln when turning to bottom material.Thermopair in existing temperature measuring device of rotary kiln, owing to being often subject to the reason such as rolling friction, flue gas stream impact of high-temperature material, easily damaging thus loses reliability and the accuracy of detection.
And the embodiment of the present invention one can open a thermometer hole more in addition on existing temperature measuring device of rotary kiln side, the relative position newly opening thermometer hole and original thermometer hole can along rotary kiln axially, also can be radially, because flue gas actual temperature difference in two diverse location kilns may be larger, therefore, two pitchs of holes should not be too large, is preferably 100-500mm.
In such cases, due to the kiln temperature pick-up unit in the present invention, only when thermometer hole is about to be positioned at non-material region, just thermopair 5 is inserted in described thermometer hole and carry out thermometric, thermopair 5 can be avoided with too much contact of high-temperature material to be subject to the rolling friction of high-temperature material or flue gas stream is impacted, thermopair 5 is long for serviceable life, and reliability and the accuracy of thermometric are high.
Therefore, kiln temperature pick-up unit in the present invention not only detects for kiln temperature, also can be used for verifying former temperature thermocouple signal, whether accurate and effective to judge former temperature thermocouple detection signal, confirm that former temperature thermocouple is the need of replacing, to ensure its promptness safeguarded.And when former temperature thermocouple breaks down, rotary kiln is in production status cannot carry out maintenance when changing immediately, and the kiln temperature pick-up unit being arranged on former temperature thermocouple side in the present invention can replace former temperature thermocouple and as the temperature-detecting device of reality temporarily.
Concrete, the embodiment of the present invention one also comprises the control module be connected with thermopair 5, and the temperature signal that described thermopair 5 records transfers in control module, analyzes.When analysis result be the temperature signal that records compare in the error range allowed with the Thermocouple Temperature Signal in former thermometer hole time, then can think that former temperature thermocouple is working properly, otherwise should former thermopair be overhauled in time, safeguards or be changed.
When the temperature value that the temperature value that former thermopair detects and the kiln temperature pick-up unit in the present invention detect differs larger, need first estimate actual temperature in kiln and confirm whether former thermopair detection signal differs comparatively large really with actual temperature data in kiln, can be confirmed to be former thermopair and break down; When rotary kiln stops producing, by instrument repair and maintenance, personnel verify former thermopair or change.
The embodiment of the present invention one can not also offer new thermometer hole in addition, but is installed on original thermometer hole by described kiln temperature pick-up unit, then original temperature thermocouple can be replaced to carry out thermometric.During rotary kiln maintenance, for ensureing the reliability of kiln temperature pick-up unit, also can verify the thermopair 5 in the kiln temperature pick-up unit in the present invention, concrete verification mode the present invention is not specifically limited at this.
The inner structure form of thermometer hole according to circumstances can be arranged to the structure such as cylinder, inverted round stage, preferentially select inverted round stage structure, when thermometer hole is positioned on flue gas, because the thermometer hole of inverted round stage structure is large towards the mouth in rotary kiln, young dorsad in rotary kiln, when slotting skewer 3 inserts in kiln, the fused mass caking of bore edges or inside, hole will easily be disclosed into kiln inside.
Thermometer hole is in the outer end of rotary kiln, and the hole of thermometer hole and rotary kiln flush with outer surface, preferably arrange edge waterproof short tube outside thermometer hole, when rain flows along kiln outer wall, can stop that rainwater flows in kiln from thermometer hole, affect the reaction of kiln combustion.The present invention does not limit the concrete structure of edge waterproof short tube, as long as can stop that the structure that rainwater flows in kiln from thermometer hole all belongs to protection scope of the present invention.On the other hand, rain cover can be set package unit is hidden, drench with rainwater-proof or enter thermometer hole, affect kiln combustion situation.
To sum up, a kind of kiln temperature pick-up unit disclosed in the embodiment of the present invention one, only when thermometer hole is about to be positioned at non-material region, described thermopair just inserts in described thermometer hole under the drive of described second drive unit, carries out thermometric; And when thermometer hole is about to be positioned at material region, the thermometer hole of described thermopair from rotary kiln is extracted out by described second drive unit, 3rd drive unit drives described first stationary backplate to move horizontally, slotting skewer is made to move to directly over described thermometer hole, then, described slotting skewer inserts described thermometer hole under the drive of described first drive unit, and blocks thermometer hole, prevents material from leaking outside.Due to the kiln temperature pick-up unit in the present invention, only when thermometer hole is about to be positioned at non-material region, just thermopair is inserted in described thermometer hole and carry out thermometric, thermopair can be avoided with too much contact of high-temperature material to be subject to the rolling friction of high-temperature material or flue gas stream is impacted, improve the serviceable life of thermopair, the formation simultaneously thermopair inner end and kiln inside surface contact position can being avoided to have fused mass to lump, improves reliability and the accuracy of thermometric.
Embodiment two
In order to optimize technique scheme further, refer to accompanying drawing 2, Fig. 3, the structural representation of the front view of another kind of kiln temperature pick-up unit disclosed in the embodiment of the present invention two; Accompanying drawing 2 be thermopair just to the structure of thermometer hole, accompanying drawing 3 be insert skewer just to the structure of thermometer hole;
A kind of kiln temperature pick-up unit that the embodiment of the present invention two provides, comprising:
First stationary backplate 1, described stationary backplate is vertically arranged on above the side of the thermometer hole that rotary kiln outer wall is offered; Be arranged on the first drive unit 2 and the second drive unit 4 of described first stationary backplate 1 the same face, described first drive unit 2 is provided with slotting skewer 3, described second drive unit 4 is provided with thermopair 5, the 3rd drive unit 6 be connected with described first stationary backplate 1, be arranged on the position switch on rotary kiln, the control module be connected with described position switch, described control module is connected with the 3rd drive unit 6 with described first drive unit 2, second drive unit 4 respectively;
Described 3rd drive unit 6 is arranged on rotary kiln outer wall, described first stationary backplate 1 is driven to do horizontal reciprocating movement, described slotting skewer 3 is made to move to directly over described thermometer hole, namely the bearing of trend inserting skewer 3 aims at thermometer hole, and under the drive of described first drive unit 2, insert described thermometer hole carry out stretching motion, or, described thermopair 5 is made to move to directly over described thermometer hole, namely the bearing of trend of thermopair 5 aims at thermometer hole, and under the drive of described second drive unit 4, inserts described thermometer hole carry out thermometric.
Concrete, as shown in Figure 2 and Figure 3, described first drive unit 2 comprises: the first cylinder, first piston push rod, described first cylinder is connected with described first stationary backplate 1, one end and described first cylinders of described first piston push rod connect, the other end is connected with described slotting skewer 3, described first cylinder drives described first piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, accordingly, described slotting skewer 3 inserts described thermometer hole and carries out stretching motion under the drive of described first piston push rod;
Described second drive unit 4 comprises: the second cylinder, second piston push rod, described second cylinder is connected with described first stationary backplate 1, one end and described second cylinders of described second piston push rod connect, the other end is connected with described thermopair 5, described second cylinder drives described second piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described thermopair 5 inserts in described thermometer hole and carries out thermometric under the drive of described second piston push rod.
Described 3rd drive unit 6 comprises: the 3rd cylinder, 3rd piston push rod, described 3rd cylinder is arranged in the second stationary backplate 7, described second stationary backplate 7 is vertically arranged on rotary kiln outer wall through base device, one end and described 3rd cylinders of described 3rd piston push rod connect, and the other end is connected with described first stationary backplate 1 by an expansion link;
Concrete, also comprise and being arranged in parallel with described first stationary backplate 1, vertically to be arranged on rotary kiln outer wall and support bar 8 connected vertically with described expansion link, described support bar 8 offers the hole coordinated with described expansion link, described expansion link inserts in support rod hole, be slidably connected by bearing and expansion link, described support bar mainly plays the effect of support first stationary backplate 1, in addition, in order to the effect of supporting to expansion link one, one support bar 9 be vertically arranged on rotary kiln outer wall between the first stationary backplate 1 and the second stationary backplate 7 can also be set in addition, and be slidably connected by bearing between expansion link.
Described 3rd piston push rod moves reciprocatingly in the horizontal direction under the drive of described 3rd cylinder, and the expansion link be connected with described 3rd piston push rod is moved reciprocatingly in the horizontal direction, drives described first stationary backplate 1 to do horizontal reciprocating movement.
When described position switch detects that thermometer hole is about to be positioned on rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit 6, drive the first stationary backplate 1 towards a direction tangential movement, make described thermopair 5 move to directly over described thermometer hole;
When described position switch detects that thermometer hole is about to be positioned under rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit 6, drives the oppositely tangential movement of the first stationary backplate 1, described slotting skewer 3 is moved to directly over described thermometer hole.
Specifically, when described position switch detects that thermometer hole is about to be positioned under rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit 6, the 3rd air cylinder driven the 3rd piston push rod action in described 3rd drive unit 6, the expansion link be connected with the 3rd piston push rod moves horizontally, and drives described first stationary backplate 1 to move horizontally, makes slotting skewer 3 move to directly over thermometer hole; First cylinder drives first piston push rod to extend along the bearing of trend action of described thermometer hole, makes slotting skewer 3 enter in thermometer hole, is blocked by hole.
When described position switch detects that thermometer hole is about to by when going on material under material, the first cylinder drives first piston push rod to regain from most long status, then to extending, continuous action at least 1 time, finally regains reset.In the process, the first cylinder drives the quick acting of first piston push rod, if there is fused mass to lump in hole, inserting skewer 3 can be removed.Fused mass caking is at bonding initial stage insecure, and therefore when rotary kiln rotates each circle, the continuous action of inserting skewer 3 is conducive to fused mass caking to be removed.
When the thermometer hole of rotary kiln goes on material, detection signal is transferred to described control module by position switch, described control module controls the 3rd drive unit 6, the 3rd air cylinder driven the 3rd piston push rod action in described 3rd drive unit 6, the expansion link be connected with the 3rd piston push rod moves in the horizontal direction, described first stationary backplate 1 is driven to move horizontally, thermopair 5 is made to be positioned at directly over rotary kiln thermometer hole, second cylinder drives the second piston push rod to extend along the bearing of trend action of described thermometer hole, thermopair 5 is made to insert in thermometer hole, start to carry out thermometric, until when thermometer hole is about to go to material position, second piston push rod shortens to be regained, thermopair 5 resets.
It should be noted that, the original state of described first cylinder is that first piston push rod is retracted to the shortest state, and the original state of described second cylinder is that the second piston push rod is retracted to the shortest state, and the original state of the 3rd cylinder does not limit.
The above-mentioned working method for kiln temperature pick-up unit of the present invention, specific works step is not necessarily undertaken by said sequence, when need start according to the stopping of rotary kiln thermometer hole and material position relationship and determine.In rotary kiln rotation process, the position of material and thermometer hole repeatedly alternately for thermometer hole at upper or material upper, therefore, described first drive unit 2 and described second drives and fills 4 is also alternation repeatedly, and the course of work circulation of above-mentioned kiln temperature pick-up unit performs.
Described slotting skewer 3 stretches out through described thermometer hole under the drive of first piston push rod, go deep into rotary kiln inside, inserting when skewer 3 inserts thermometer hole can just in time in patchhole, and consider the space of thermal expansion, so that when rotary kiln normally works, insert skewer 3 its thickness after high-temperature expansion just in time to mate with thermometer hole, and when first piston push rod extends out to the longest, it is unsuitable long that slotting skewer 3 inserts in thermometer hole the end of exposing rotary kiln inwall, the distance of the end distance rotary kiln inwall that described slotting skewer 3 gos deep in rotary kiln is preferably 10-50mm, the longest should more than 100mm, otherwise when inserting in kiln, gas shock with particle in kiln easily causes slotting skewer Leading Edge Deformation.Driving mechanism is reduced to the most in short-term, inserting skewer 3 retracts in thermometer hole, insert the end of skewer 3 in thermometer hole unsuitable oversize in thermometer hole, the distance of the end distance rotary kiln inwall of described slotting skewer 3 in thermometer hole is preferably 10-50mm, at most should more than 50mm, otherwise when thermometer hole is under material, material easily enters in thermometer hole, to impact and the wearing and tearing of slotting skewer 3, easily make slotting skewer 3 Leading Edge Deformation.
Described thermopair 5 stretches out through described thermometer hole under the drive of the second piston push rod, thermopair 5 just in time can be inserted in thermometer hole and carry out thermometric, wherein, protective casing is arranged with outside described thermopair 5, the protective casing external diameter of thermopair 5 should be less than thermometer hole diameter, or thermocouple protective casing end 0-100mm scope diameter is less than other parts diameter, namely protective casing has reducing to connect, the friction of end and the larger sleeve portion of diameter except end and aperture can be reduced less, end diameter is little can increase thermometric sensitivity, the bigger air-flow turnover that can reduce hole of other parts diameter.When thermopair 5 inserts in thermometer hole, it is also unsuitable long that rotary kiln inwall is exposed in end, can truly detect flue-gas temperature in kiln discharge, the distance that described thermopair 5 gos deep into the end distance rotary kiln inwall of rotary kiln inside is preferably 10-150mm, the longest should more than 150mm, otherwise can impact because of airstream in kiln, wear and tear, affect serviceable life.
Wherein, the action of three cylinder pistons, drives by control module, and the signal exchange between control module realizes by wireless communication technology.Control module is made up of two parts, and fixed signal processor is fixedly installed near under rotary kiln, and turn signal processor is installed on kiln temperature pick-up unit side, and two signal processors carry out radio communication.Wherein turn signal processor is connected by cable with the topworks of three cylinders, and controls topworks and make cylinder piston action.Such as control to insert skewer the first cylinder, can continuous action 1 to 3 times, insert skewer 3 and pull and push 3 times continuously fast from thermometer hole ecto-entad, if there is fused mass to lump in thermometer hole, then can remove totally.
The kiln temperature pick-up unit of the embodiment of the present invention two is except three cover cylinders, other is mechanical part, higher temperature can be born, and cylinder is as a kind of exact instrument, its cylinder body has certain space, inner air can be hot-air or cold air, as long as very fast change does not occur temperature in the short period of time, is also inessential; Otherwise temperature raises fast, then air expands severe, and easily damage cylinder, rotary kiln ambient air temperature is basicly stable, so the situation of steep temperature rise can not occur gas in the jar temperature.In addition, for reducing the hyperthermia radiation source of rotary kiln surface to the temperature radiation of cylinder, during specific design device, to three cover cylinder outside surface design thermofins, to reduce radiation effect, the cylinder operation life-span can be increased.Package unit outside can adopt rainproof measure, to reduce the corrosion problem of device outside simultaneously.
Wherein, can the above-mentioned mode by air cylinder driven be changed into driven by electric pushrod mode, as shown in Figures 4 and 5, accompanying drawing 4 is that the thermopair that driven by electric pushrod is just to the front view of the kiln temperature pick-up unit of thermometer hole, accompanying drawing 5 is that the slotting skewer that driven by electric pushrod is just to the front view of the kiln temperature pick-up unit of thermometer hole, concrete, the first cylinder in first drive unit 2 is replaced with the first electric pushrod assembly, described first electric pushrod assembly is connected with described first stationary backplate 1, one end of described first push rod is connected with described first electric pushrod assembly, the other end is connected with described slotting skewer 3, described first electric pushrod assembly drives described first push rod to carry out stretching motion along the bearing of trend of described thermometer hole, accordingly, described slotting skewer 3 inserts described thermometer hole and carries out stretching motion under the drive of described first push rod,
Accordingly, the second cylinder in second drive unit 4 can be replaced with the second electric pushrod assembly, described second electric pushrod assembly is connected with described first stationary backplate 1, one end of described second push rod is connected with described second electric pushrod assembly, the other end is connected with described thermopair 5, described second electric pushrod assembly drives described second push rod to carry out stretching motion along the bearing of trend of described thermometer hole, accordingly, described thermopair 5 inserts in described thermometer hole and carries out thermometric under the drive of described second push rod.
Accordingly, the 3rd cylinder in 3rd drive unit 6 can be replaced with the 3rd electric pushrod assembly, described 3rd electric pushrod assembly is arranged in the second stationary backplate 7, described second stationary backplate 7 is vertically arranged on rotary kiln sidewall through base device, one end of described 3rd push rod is connected with described 3rd electric pushrod assembly, and the other end is connected with described first stationary backplate 1 by an expansion link;
Described 3rd push rod moves reciprocatingly along the direction radial vertical with described rotary kiln under the drive of described 3rd electric pushrod assembly, the first stationary backplate 1 be connected with described 3rd push rod is made to do horizontal reciprocating movement, described slotting 3 are made to move to directly over described thermometer hole, or, described thermopair 5 is moved to directly over described thermometer hole.
Working method by the kiln temperature pick-up unit of electric pushrod Component driver is similar with the working method of the kiln temperature pick-up unit by air cylinder driven, does not do detailed discussion at this.
To sum up, a kind of kiln temperature pick-up unit disclosed in the embodiment of the present invention two, only when thermometer hole is about to be positioned at non-material region, described thermopair just inserts in described thermometer hole under the drive of described second drive unit, carries out thermometric; And when thermometer hole is about to be positioned at material region, the thermometer hole of described thermopair from rotary kiln is extracted out by described second drive unit, 3rd drive unit drives described first stationary backplate to move horizontally, slotting skewer is made to move to directly over described thermometer hole, then, described slotting skewer inserts described thermometer hole under the drive of described first drive unit, and blocks thermometer hole, prevents material from leaking outside.Due to the kiln temperature pick-up unit in the present invention, only when thermometer hole is about to be positioned at non-material region, just thermopair is inserted in described thermometer hole and carry out thermometric, thermopair can be avoided with too much contact of high-temperature material to be subject to the rolling friction of high-temperature material or flue gas stream is impacted, improve the serviceable life of thermopair, the formation simultaneously thermopair inner end and kiln inside surface contact position can being avoided to have fused mass to lump, improves reliability and the accuracy of thermometric.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a kiln temperature pick-up unit, is characterized in that, comprising:
First stationary backplate, described first stationary backplate is positioned at above the side of the thermometer hole that rotary kiln outer wall is offered;
Be arranged on the first drive unit and second drive unit of described first stationary backplate the same face, described first drive unit and the second drive unit be arranged in parallel, and described first drive unit is provided with slotting skewer, and described second drive unit is provided with thermopair;
The 3rd drive unit be connected with described first stationary backplate, described 3rd drive unit is fixed on described rotary kiln outer wall by the second stationary backplate, described first stationary backplate is driven to do horizontal reciprocating movement, described slotting skewer is made to move to directly over described thermometer hole, and under the drive of described first drive unit, insert described thermometer hole carry out stretching motion, or, described thermopair is moved to directly over described thermometer hole, and under the drive of described second drive unit, inserts described thermometer hole carry out thermometric.
2. kiln temperature pick-up unit according to claim 1, is characterized in that,
Described first drive unit comprises: the first cylinder, first piston push rod, described first cylinder is connected with described stationary backplate, one end and described first cylinders of described first piston push rod connect, the other end is connected with described slotting skewer, described first cylinder drives described first piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described slotting skewer inserts described thermometer hole and carries out stretching motion under the drive of described first piston push rod;
Described second drive unit comprises: the second cylinder, second piston push rod, described second cylinder is connected with described stationary backplate, one end and described second cylinders of described second piston push rod connect, the other end is connected with described thermopair, described second cylinder drives described second piston push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described thermopair inserts in described thermometer hole and carries out thermometric under the drive of described second piston push rod.
3. kiln temperature pick-up unit according to claim 1, is characterized in that,
Described first drive unit comprises: the first electric pushrod assembly, first push rod, described first electric pushrod assembly is connected with described stationary backplate, one end of described first push rod is connected with described first electric pushrod assembly, the other end is connected with described slotting skewer, described first electric pushrod assembly drives described first push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described slotting skewer inserts described thermometer hole and carries out stretching motion under the drive of described first push rod;
Described second drive unit comprises: the second electric pushrod assembly, second push rod, described second electric pushrod assembly is connected with described stationary backplate, one end of described second push rod is connected with described second electric pushrod assembly, the other end is connected with described thermopair, described second electric pushrod assembly drives described second push rod to carry out stretching motion along the bearing of trend of described thermometer hole, and accordingly, described thermopair inserts in described thermometer hole and carries out thermometric under the drive of described second push rod.
4. the kiln temperature pick-up unit according to claim 1-3 any one, is characterized in that,
Described slotting skewer stretches out through described thermometer hole under the drive of first piston push rod or the first push rod, gos deep into rotary kiln inside, and the distance of the end distance rotary kiln inwall that described slotting skewer gos deep in rotary kiln is 10-50mm;
Described slotting skewer is retracted in thermometer hole under the drive of first piston push rod or the first push rod, and the distance of the end distance rotary kiln inwall of described slotting skewer in thermometer hole is 10-50mm.
5. the kiln temperature pick-up unit according to claim 1-3 any one, is characterized in that,
Described thermopair stretches out through described thermometer hole under the drive of the second piston push rod or the second push rod, gos deep into rotary kiln inside and carries out thermometric, and the distance that described thermopair gos deep into the end distance rotary kiln inwall of rotary kiln inside is 10-150mm.
6. kiln temperature pick-up unit according to claim 1, is characterized in that, also comprise:
Be arranged on the position switch on rotary kiln, the control module be connected with described position switch, described control module is connected with the 3rd drive unit with described first drive unit, the second drive unit respectively;
When described position switch detects that thermometer hole is about to be positioned on rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit, drive described first stationary backplate to do horizontal reciprocating movement, make described thermopair be positioned at directly over described thermometer hole;
When described position switch detects that thermometer hole is about to be positioned under rotary kiln material, detection signal is transferred to described control module, described control module controls the 3rd drive unit, drive described first stationary backplate to do horizontal reciprocating movement, described slotting skewer is positioned at directly over described thermometer hole.
7. kiln temperature pick-up unit according to claim 1, is characterized in that,
Described 3rd drive unit comprises: the 3rd cylinder, 3rd piston push rod, described 3rd cylinder is arranged in the second stationary backplate, described second stationary backplate is vertically arranged on rotary kiln outer wall through base device, one end and described 3rd cylinders of described 3rd piston push rod connect, and the other end is connected with described first stationary backplate by an expansion link;
Described 3rd piston push rod moves reciprocatingly in the horizontal direction under the drive of described 3rd cylinder, the described expansion link be connected is moved reciprocatingly in the horizontal direction, drive described first stationary backplate to do horizontal reciprocating movement with described 3rd piston push rod.
8. kiln temperature pick-up unit according to claim 1, is characterized in that,
Described 3rd drive unit comprises: the 3rd electric pushrod assembly, 3rd push rod, described 3rd electric pushrod assembly is arranged in the second stationary backplate, described second stationary backplate is vertically arranged on rotary kiln outer wall through base device, one end of described 3rd push rod is connected with described 3rd electric pushrod assembly, and the other end is connected with described first stationary backplate by an expansion link;
Described 3rd push rod moves reciprocatingly in the horizontal direction under the drive of described 3rd electric pushrod assembly, the described expansion link be connected is moved reciprocatingly in the horizontal direction, drive described first stationary backplate to do horizontal reciprocating movement with described 3rd push rod.
9. the kiln temperature pick-up unit according to claim 1,7 or any one, is characterized in that, also comprise:
Be arranged in parallel with described first stationary backplate, be vertically arranged on the support bar coordinated on rotary kiln outer wall and with described expansion link.
10. the kiln temperature pick-up unit according to claim 1 or 6, is characterized in that,
Described control module is also connected with thermopair, and the temperature signal recorded is transferred to described control module by described thermopair.
11. kiln temperature pick-up units according to claim 1-6 any one, it is characterized in that, the shape of described thermometer hole is cylindrical or reverse frustoconic.
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| CN107389212A (en) * | 2017-07-31 | 2017-11-24 | 中国科学技术大学 | A kind of solid material burning behavior measurement apparatus |
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| CN111036777A (en) * | 2019-12-06 | 2020-04-21 | 安徽戎发冲压机器人有限公司 | Plate heating oven for hot stamping forming |
| CN111307334A (en) * | 2020-05-12 | 2020-06-19 | 南京源自飞网络科技有限公司 | Temperature detection device for engine by using expansion principle |
| CN111934500A (en) * | 2020-06-29 | 2020-11-13 | 东方电气集团东方电机有限公司 | Replacement method of generator stator temperature measuring element |
| CN113324807A (en) * | 2021-05-19 | 2021-08-31 | 合肥金星机电科技发展有限公司 | Method for selecting sampling position of flue gas analyzer |
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