CN219756422U - Powder melting accelerator's feeding system - Google Patents
Powder melting accelerator's feeding system Download PDFInfo
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- CN219756422U CN219756422U CN202321065614.9U CN202321065614U CN219756422U CN 219756422 U CN219756422 U CN 219756422U CN 202321065614 U CN202321065614 U CN 202321065614U CN 219756422 U CN219756422 U CN 219756422U
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- 239000000843 powder Substances 0.000 title claims abstract description 71
- 238000002844 melting Methods 0.000 title claims abstract description 31
- 230000008018 melting Effects 0.000 title claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 92
- 239000004568 cement Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 14
- 238000003860 storage Methods 0.000 claims abstract description 13
- 238000000265 homogenisation Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 25
- 239000002918 waste heat Substances 0.000 claims description 20
- 238000010248 power generation Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 17
- 235000012054 meals Nutrition 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000227 grinding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- -1 polyol amines Chemical class 0.000 description 1
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Abstract
The utility model discloses a powder melting accelerator adding system which comprises powder storage equipment, a pneumatic conveying pipe and powder nozzles, wherein the powder nozzles are arranged in a cement production system based on a raw material mill, the discharge ports of the powder storage equipment are communicated with the powder nozzles through the pneumatic conveying pipe, the powder nozzles are arranged at all adding positions at the rear end of the raw material mill in the cement production system, and the adding positions comprise a part from the rear end of the raw material mill to the front end of a raw material homogenizing warehouse and a part from the rear end of the raw material homogenizing warehouse. The utility model solves the problems caused by adding the conventional liquid melting accelerant, realizes the addition of the powder melting accelerant, and can ensure that the product is mixed with the powder melting accelerant more fully and uniformly after entering a raw material homogenization warehouse, thereby fully playing the coal-saving effect of the better product.
Description
Technical Field
The utility model relates to a powder melting accelerator adding system.
Background
The melting accelerant is a multifunctional high-tech composite chemical material which is developed aiming at energy conservation, consumption reduction and emission reduction of the novel cement rotary kiln system; the main components are chemical materials such as organic polyol amines, hydroxypropyl cellulose ethers, alkaline earth metal mineralizers and the like. The core functions of the method are saving coal consumption, reducing electricity consumption, reducing emission of CO2, SO2 and NOx, and the like, and the novel product can realize the environmental protection concepts of energy conservation, consumption reduction and emission reduction of the raw material grinding and calcining process system through the application of the novel product.
In the existing cement production system based on the raw material mill, a liquid melting promoter is added, and the adding position is usually arranged at the front end of the raw material mill, so that the added liquid melting promoter also needs to enter a subsequent calcination process system after being ground by the raw material mill. The method has the advantages that the liquid melting accelerator and the powder raw materials can be uniformly mixed through the grinding process of the raw material mill, and the stability and reliability of the melting accelerator performance are improved. But defects also exist as a result, including: the liquid melting promoter may volatilize during transportation and grinding, reducing the active material content and allowing for reduced performance that can be produced in a subsequent calcination system. In addition, the grinding process needs to be heated and the evaporation capacity of the liquid dissolution promoter is further improved, and meanwhile, the liquid dissolution promoter needs to absorb a certain amount of heat when being heated, so that the heating speed of the raw materials is slowed down, and the coal saving effect of the raw materials is affected.
Disclosure of Invention
The utility model provides a powder melting accelerator adding system, which is used for solving the technical problems that in the prior art, the liquid melting accelerator has larger evaporation consumption in the conveying and grinding processes caused by the adding stage before raw material grinding, and evaporation and absorption heat occurs during heating, so that the heating efficiency of raw materials is slowed down.
The powder melting accelerator adding system comprises powder storage equipment, a pneumatic conveying pipe and powder nozzles, wherein the powder nozzles are arranged in a cement production system based on raw material grinding, a discharge hole of the powder storage equipment is communicated with each powder nozzle through the pneumatic conveying pipe, the powder nozzles are arranged in the cement production system and located at all adding positions of the rear end of the raw material grinding, and each adding position comprises a part from the rear end of the raw material grinding to the front end of a raw material homogenizing warehouse and a part from the rear end of the raw material homogenizing warehouse.
Preferably, the part from the rear end of the raw material mill to the front end of the raw material entering homogenizing warehouse comprises conveying equipment from a raw material finished product dust collector to the raw material entering homogenizing warehouse and a discharging opening thereof, conveying equipment from a kiln tail dust collector to the raw material entering homogenizing warehouse and a discharging opening thereof, conveying equipment from a humidifying tower or a PH boiler to the raw material entering homogenizing warehouse and a discharging opening thereof, conveying equipment from a warehouse bucket to the raw material entering homogenizing warehouse and a discharging opening thereof, and all pipelines from the raw material mill to the kiln tail raw material dust collector.
Preferably, the conveying equipment from the raw material finished product dust collector to the raw material homogenizing warehouse comprises a cyclone, a rotary feeder and an air conveying chute; the conveying equipment from the kiln tail dust collector to the raw material homogenizing warehouse comprises a chain conveyor and a rotary blanking device; the conveying equipment from the humidifying tower or the PH boiler to the raw material homogenizing warehouse comprises a screw conveyor, a chain conveyor and an air conveying chute; the conveying equipment from the warehouse bucket to the raw material homogenizing warehouse comprises the warehouse bucket and an air conveying chute.
Preferably, the part entering the rear end of the raw material homogenizing warehouse comprises equipment and a discharging opening from the raw material homogenizing warehouse to a position of a preheater, and the conveying equipment from the raw material homogenizing warehouse to the position of the preheater comprises a bucket elevator I and an air conveying chute; the equipment from the raw meal homogenizing silo to the preheater location also comprises a standard silo and a metering scale.
Preferably, the part at the rear end of the raw material feeding homogenizing warehouse further comprises equipment from the kiln tail waste heat power generation boiler to a standard warehouse and a discharging port, wherein conveying equipment from the kiln tail waste heat power generation boiler to the standard warehouse comprises a waste heat power generation ash returning conveying belt and a bucket elevator II, the bucket elevator II is connected with the waste heat power generation ash returning conveying belt and the standard warehouse, and the equipment from the kiln tail waste heat power generation boiler to the standard warehouse further comprises the standard warehouse.
Preferably, the powder storage device comprises a powder bin, a bin top dust remover, a pneumatic device, a feeding pipe and a bin wall vibrator, wherein the feeding pipe is connected to the powder bin through the bin top dust remover, the lower part of the powder bin is in a hopper shape, the bottom end of the lower part of the powder bin is provided with a discharge hole, and the pneumatic device is connected to the pneumatic conveying pipe; the side wall of the lower part of the powder bin is provided with a bin wall vibrator, the discharge hole is provided with a pneumatic gate valve, a variable-frequency rotary feeder and a vector scale are arranged below the pneumatic gate valve, and the discharge hole is communicated with the pneumatic device through the variable-frequency rotary feeder and the vector scale.
The utility model has the following advantages: the scheme solves the problem of adding the conventional liquid melting accelerant, realizes the addition of the powder melting accelerant, and can ensure that the product is mixed with the powder melting accelerant more fully and uniformly after entering a raw material homogenization warehouse, thereby fully playing the coal-saving effect of the better product. The powder melting accelerant is similar to the material state of the raw materials, and is more favorable for uniform mixing when the fineness of the powder is similar. When the adding position is close to the preheater, the scheme can enable the product to quickly enter the preheater for reaction, the coal saving effect of the product can be quickly reflected, the test time is greatly shortened, and the adjusting means is faster and more flexible.
Drawings
Fig. 1 is a schematic diagram of a powder melting promoter feeding system according to the present utility model.
FIG. 2 is a schematic view showing the structure of a portion from the rear end of a raw mill to a raw meal homogenizing silo in a cement production system to which the present utility model is applied.
FIG. 3 is a schematic view showing the structure of the portion from the rear end of the raw meal homogenizing silo to the preheater in the cement manufacturing system to which the present utility model is applied.
Fig. 4 is a schematic diagram of the structure from the kiln tail waste heat power generation boiler to the standard bin part in the cement production system to which the utility model is applied.
The marks in the drawings are: 1. the device comprises a powder bin, 2 parts of pneumatic conveying pipelines, 3 parts of powder nozzles, 4 parts of bin wall vibrators, 5 parts of bin top dust collectors, 6 parts of feeding pipes, 7 parts of pneumatic devices, 8 parts of variable-frequency rotary blanking machines, 9 parts of vector balances, 10 parts of pneumatic sluice valves, 11 parts of kiln tail dust collectors, 12 parts of raw material homogenizing warehouses, 13 parts of warehouse-in bucket lifts, 14 parts of raw material mills, 15 parts of raw material finished product dust collectors, 16 parts of air conveying chute, 17 parts of humidifying towers, 18 parts of rotary blanking machines, 19 parts of screw conveyors, 20 parts of preheaters, 21 parts of metering weights, 22 parts of standard bins, 23 parts of bucket lifts, 24 parts of bucket lifts, 25 parts of bucket lifts, 26 parts of kiln tail waste heat power generation boilers and 26 parts of waste heat power generation ash returning conveying belts.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the utility model by those skilled in the art.
As shown in fig. 1-4, the utility model provides a powder melting accelerator adding system, which comprises powder storage equipment, a pneumatic conveying pipe 2, powder nozzles 3 and a cement production system based on a raw material mill 14, wherein the powder nozzles 3 are arranged in the cement production system, the discharge holes of the powder storage equipment are communicated with the powder nozzles 3 through the pneumatic conveying pipe 2, the powder nozzles 3 are arranged at all adding positions positioned at the rear end of the raw material mill 14 in the cement production system, and the adding positions comprise a part from the rear end of the raw material mill 14 to the front end of the raw material homogenizing warehouse 12 and a part from the rear end of the raw material homogenizing warehouse 12.
The part from the rear end of the raw material mill 14 to the front end of the raw material entering homogenizing warehouse 12 comprises a raw material finished product dust collector 15, a conveying device and a discharging opening thereof from the raw material finished product dust collector 15 to the raw material entering homogenizing warehouse 12, a conveying device and a discharging opening thereof from a kiln tail dust collector 11 to the raw material entering homogenizing warehouse 12, a conveying device and a discharging opening thereof from a humidifying tower 17 or a PH boiler (waste heat boiler) to the raw material entering homogenizing warehouse 12, a conveying device and a discharging opening thereof from a warehouse bucket 13 to the raw material entering homogenizing warehouse 12, and all pipelines from the raw material mill 14 to the kiln tail raw material dust collector. Wherein, the conveying equipment from the raw material finished product dust collector 15 to the raw material homogenizing warehouse 12 comprises a cyclone, a rotary feeder 18 and an air conveying chute 16; the conveying equipment from the kiln tail dust collector 11 to the raw material homogenizing warehouse 12 comprises a chain conveyor and a rotary feeder 18; the conveying equipment from the humidifying tower 17 or PH boiler to the raw material homogenizing warehouse 12 comprises a screw conveyor 19, a chain conveyor and an air conveying chute 16; the conveying equipment between the storage bucket 13 and the raw material homogenizing warehouse 12 comprises the storage bucket 13 and an air conveying chute 16.
The powder melting promoter is added to the part from the rear end of the raw material mill 14 to the front end of the raw material homogenizing container 12, so that the product is mixed with the powder melting promoter more fully and uniformly after entering the raw material homogenizing container 12, and the coal saving effect of the product is fully exerted. The powder melting accelerant is similar to the material state of the raw materials, and is more favorable for uniform mixing when the fineness of the powder is similar.
The rear part of the incoming raw meal homogenizing silo 12 comprises equipment and a feed opening from the raw meal homogenizing silo to the location of the preheater 20. The transport equipment from the raw meal homogenizing silo to the location of the preheater 20 comprises a bucket elevator one 23 and an air transport chute 16. The equipment from the raw meal homogenizing silo to the location of the preheater 20 furthermore comprises a standard silo 22 and a weighing scale 21. If the cement production system is also provided with a kiln tail waste heat power generation boiler 25, the part entering the rear end of the raw material homogenizing warehouse 12 also comprises equipment and a discharging opening from the kiln tail waste heat power generation boiler 25 to the standard bin 22, wherein conveying equipment from the kiln tail waste heat power generation boiler 25 to the standard bin 22 comprises a waste heat power generation ash returning conveying belt 26 and a bucket elevator II 24, the bucket elevator II 24 is connected with the waste heat power generation ash returning conveying belt 26 and the standard bin 22, and the equipment from the kiln tail waste heat power generation boiler 25 to the standard bin 22 also comprises the standard bin 22.
The addition is carried out at the position, and the addition position is close to the preheater 20, so that the product can be quickly fed into the preheater 20 for reaction, the coal saving effect of the product can be quickly reflected, the test time is greatly shortened, and the adjustment means is faster and more flexible.
The powder storage equipment comprises a powder bin 1, a bin top dust remover 5, a pneumatic device 7, a feeding pipe 6 and a bin wall vibrator 4, wherein the feeding pipe 6 is connected with the powder bin 1 through the bin top dust remover 5, the lower part of the powder bin 1 is in a hopper shape, the bottom of the lower part of the powder bin 1 is provided with a discharge hole, and the pneumatic device 7 is connected to the pneumatic conveying pipe 2.
The side wall of the lower part of the powder bin 1 is provided with a bin wall vibrator 4, a pneumatic gate valve 10 is arranged at the discharge hole, a frequency conversion rotary blanking device 8 and a vector scale 9 are arranged below the pneumatic gate valve 10, and the discharge hole is communicated with the pneumatic device 7 through the frequency conversion rotary blanking device 8 and the vector scale 9. The variable frequency rotary blanking device 8 is used for controlling the blanking speed, the vector scale 9 is used for accurately measuring the blanking amount in unit time, the blanking speed is accurately controlled through the variable frequency rotary blanking scale after the measurement of the vector scale 9, and when the material output is unsmooth due to the arch phenomenon at the lower part of the powder bin 1, the blanking speed feedback of the variable frequency rotary blanking device 8 and the comparison of the measurement result of the vector scale 9 can be timely found, and arch breaking is completed through the vibration of the bin wall vibrator 4, so that the blanking is recovered to be smooth.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is capable of being modified or applied to other applications without modification, as long as various insubstantial modifications of the inventive concept and technical solutions are adopted, all within the scope of the utility model.
Claims (6)
1. A powder melting accelerator's system of throwing, its characterized in that: including powder storage equipment, pneumatic conveying pipe (2) and powder nozzle (3), powder nozzle (3) set up in the cement production system based on raw materials grinds (14), each powder nozzle (3) of discharge gate through pneumatic conveying pipe (2) intercommunication of powder storage equipment, powder nozzle (3) set up in be located in the cement production system each place interpolation position of raw materials grinds (14) rear end, interpolation position includes raw materials grinds (14) rear end to the part of raw materials homogenization storehouse (12) front end and the part of raw materials homogenization storehouse (12) rear end of entering.
2. The powder melting accelerator adding system according to claim 1, wherein: the part from the rear end of the raw material mill (14) to the front end of the raw material entering homogenizing warehouse (12) comprises conveying equipment from a raw material finished product dust collector (15) to the raw material entering homogenizing warehouse (12) and a discharging opening thereof, conveying equipment from a kiln tail dust collector (11) to the raw material entering homogenizing warehouse (12) and a discharging opening thereof, conveying equipment from a humidifying tower (17) or a PH boiler to the raw material entering homogenizing warehouse (12) and a discharging opening thereof, conveying equipment from a warehouse entering bucket elevator (13) to the raw material entering homogenizing warehouse (12) and a discharging opening thereof, and all pipelines from the raw material mill (14) to the kiln tail dust collector.
3. The powder melting promoter adding system according to claim 2, wherein: the conveying equipment from the raw material finished product dust collector (15) to the raw material homogenizing warehouse (12) comprises a cyclone, a rotary feeder (18) and an air conveying chute (16); the conveying equipment from the kiln tail dust collector (11) to the raw material homogenizing warehouse (12) comprises a chain conveyor and a rotary blanking device (18); the conveying equipment from the humidifying tower (17) or the PH boiler to the raw material homogenizing warehouse (12) comprises a screw conveyor (19), a chain conveyor and an air conveying chute (16); the conveying equipment from the warehouse-in bucket lift (13) to the raw material homogenizing warehouse (12) comprises the warehouse-in bucket lift (13) and an air conveying chute (16).
4. The powder melting accelerator adding system according to claim 1, wherein: the rear end part of the raw material entering homogenizing warehouse (12) comprises equipment and a discharging opening from the raw material homogenizing warehouse to the position of the preheater (20), and the conveying equipment from the raw material homogenizing warehouse to the position of the preheater (20) comprises a bucket elevator I (23) and an air conveying chute (16); the apparatus from the raw meal homogenizing silo to the location of the preheater (20) also comprises a standard silo (22) and a weighing scale (21).
5. The powder melting promoter adding system according to claim 4, wherein: the device comprises a raw material feeding homogenization warehouse (12), and is characterized in that the rear end of the raw material feeding homogenization warehouse further comprises equipment and a discharging opening from a kiln tail waste heat power generation boiler (25) to a standard bin (22), wherein conveying equipment from the kiln tail waste heat power generation boiler (25) to the standard bin (22) comprises a waste heat power generation ash returning conveying belt (26) and a bucket elevator II (24), the bucket elevator II (24) is connected with the waste heat power generation ash returning conveying belt (26) and the standard bin (22), and the equipment from the kiln tail waste heat power generation boiler (25) to the standard bin (22) further comprises the standard bin (22).
6. The powder melting accelerator adding system according to claim 1, wherein: the powder storage device comprises a powder bin (1), a bin top dust remover (5), a pneumatic device (7), a feeding pipe (6) and a bin wall vibrator (4), wherein the feeding pipe (6) is connected to the powder bin (1) through the bin top dust remover (5), the lower part of the powder bin (1) is in a hopper shape, the bottom end of the lower part of the powder bin (1) is provided with a discharge hole, and the pneumatic device (7) is connected to the pneumatic conveying pipe (2); the powder bin is characterized in that a bin wall vibrator (4) is arranged on the side wall of the lower portion of the powder bin (1), a pneumatic gate valve (10) is arranged at the discharge hole, a variable-frequency rotary feeder (8) and a vector scale (9) are arranged below the pneumatic gate valve (10), and the discharge hole is communicated with the pneumatic device (7) through the variable-frequency rotary feeder (8) and the vector scale (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065614.9U CN219756422U (en) | 2023-05-05 | 2023-05-05 | Powder melting accelerator's feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321065614.9U CN219756422U (en) | 2023-05-05 | 2023-05-05 | Powder melting accelerator's feeding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219756422U true CN219756422U (en) | 2023-09-26 |
Family
ID=88077320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321065614.9U Active CN219756422U (en) | 2023-05-05 | 2023-05-05 | Powder melting accelerator's feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219756422U (en) |
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2023
- 2023-05-05 CN CN202321065614.9U patent/CN219756422U/en active Active
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