CN219829492U - Cement kiln head liquid dangerous waste collaborative disposal system - Google Patents
Cement kiln head liquid dangerous waste collaborative disposal system Download PDFInfo
- Publication number
- CN219829492U CN219829492U CN202320938622.3U CN202320938622U CN219829492U CN 219829492 U CN219829492 U CN 219829492U CN 202320938622 U CN202320938622 U CN 202320938622U CN 219829492 U CN219829492 U CN 219829492U
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- incinerator
- cement kiln
- kiln head
- communicated
- waste
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- 239000007788 liquid Substances 0.000 title claims abstract description 65
- 239000002699 waste material Substances 0.000 title claims abstract description 56
- 239000004568 cement Substances 0.000 title claims abstract description 42
- 239000002920 hazardous waste Substances 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 claims description 10
- 238000009688 liquid atomisation Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000004576 sand Substances 0.000 description 6
- 238000002309 gasification Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Abstract
The utility model discloses a liquid hazardous waste co-disposal system for a cement kiln head, which comprises a decomposing furnace, a cement kiln, a grate cooler and an incinerator, wherein the bottom of the decomposing furnace is communicated with the grate cooler through the cement kiln, the incinerator is communicated with a high-temperature section of the grate cooler, the top of the incinerator is communicated with the decomposing furnace through a tertiary air pipe, and a flashboard is arranged on the tertiary air pipe. The utility model relates to the technical field of cement production, in particular to a liquid hazardous waste cooperative disposal system for a cement kiln head, which is characterized in that an independent incinerator is arranged at the inlet of a tertiary air pipe of the cement kiln head and is communicated with a high-temperature section of a grate cooler up and down, the temperature in the incinerator can reach about 900-1050 ℃, the waste heat generated by the grate cooler can be effectively utilized, and adverse effects on calcination caused by waste liquid burning in a cement kiln or a decomposing furnace can be avoided.
Description
Technical Field
The utility model relates to the technical field of cement production, in particular to a liquid hazardous waste collaborative disposal system for cement kiln heads.
Background
The cement kiln hazardous waste mainly comprises solid, semi-solid and waste liquid, wherein most of the waste liquid is added from the kiln head of the rotary kiln, the waste liquid with high heat value is beneficial to the calcination of clinker, and the disposal of the waste liquid with low heat value has larger influence on the calcination of clinker. The kiln head disposal waste liquid has three main adverse effects on clinker calcination: firstly, the water content of the waste liquid is large, so that the secondary air temperature of the kiln is reduced, and the coal consumption is increased; after the waste liquid is combusted and gasified, the volume is increased by 1700 times to form a large amount of flue gas with larger water content, and the flue gas is covered around the coal dust, so that air can be prevented from entering a combustion zone, incomplete combustion of the coal dust is caused, the sintering temperature is reduced, and the quality of clinker is deteriorated; thirdly, the flying sand is increased, and the kiln head cover and the grate cooler crust are increased.
The main reason that the waste liquid disposal has a great influence on clinker calcination is that the existing waste liquid disposal is generally added from a cement kiln mouth or a decomposing furnace, and is decomposed with raw materials and calcined with the clinker in a space, so that the gasification and combustion of the waste liquid have no independent space, and the waste liquid is mutually braked, thereby not only influencing the cement clinker calcination working condition and the clinker quality, but also causing the waste liquid disposal amount to be difficult to improve and mutually influencing.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a liquid hazardous waste collaborative disposal system for a cement kiln head, which solves the problem of low efficiency of the existing cement kiln waste liquid disposal system.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a liquid danger of cement kiln head is useless in coordination treatment system, includes decomposing furnace, cement kiln, comb cold machine and burns the stove, the bottom of decomposing furnace is through cement kiln and comb cold machine intercommunication, burns the high temperature section intercommunication of stove and comb cold machine, burns the top of burning the stove and is through tertiary air pipe and decomposing furnace intercommunication, and is provided with the flashboard on this tertiary air pipe.
The inlet of the incinerator is provided with a spray gun which is respectively connected with an oxygen production system and a waste liquid atomization system.
The bottom outlet of the incinerator is communicated with a kiln head waste heat boiler through a hot air pipe.
A high-temperature camera is arranged on one side, close to the spray gun, in the incinerator, and a thermocouple is arranged on the top of the incinerator.
As a further preferable mode, the oxygen generating system comprises an air pipe communicated with the spray gun, and an oxygen generator and an air compressor are respectively arranged at the tail end of the air pipe.
As a further preferable mode, the waste liquid atomization system comprises a waste liquid pipeline communicated with the spray gun, and the tail end of the waste liquid pipeline is respectively provided with a pneumatic diaphragm pump and a waste liquid tank.
As a further preferable mode, a suspension type ceramic heat exchanger and a plate type honeycomb ceramic heat exchanger are respectively arranged on the upper side and the lower side of the inner cavity of the incinerator.
As a further preferable mode, the incinerator is also provided with an air cannon.
As a further preferable mode, a kiln head cover is arranged at the joint of the cement kiln and the grate cooler.
As a further preference, the height of the lance is parallel to the height of the tertiary air duct.
(III) beneficial effects
The utility model provides a liquid hazardous waste co-disposal system for a cement kiln head. The beneficial effects are as follows:
according to the liquid dangerous waste collaborative disposal system for the cement kiln head, the independent incinerator is arranged at the inlet of the tertiary air pipe of the cement kiln head and is communicated with the high-temperature section of the grate cooler up and down, the temperature in the incinerator can reach about 900-1050 ℃, the waste heat generated by the grate cooler can be effectively utilized, and adverse effects on calcination caused by waste liquid burning in the cement kiln or the decomposing furnace can be avoided. The incinerator has the function of a sedimentation chamber, so that abrasion or accumulation of the flying sand material on a tertiary air pipe can be reduced; by adding the heat exchanger in the waste liquid incinerator, the gasification combustion of the waste liquid can be quickened, and meanwhile, the flying sand material can be reduced; by adopting the waste liquid oxygen-enriched pressurized atomization system, the waste liquid dispersing effect can be improved, and the waste liquid disposal efficiency can be improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. a decomposing furnace; 2. a flashboard; 3. a tertiary air duct; 4. an incinerator; 5. a suspended ceramic heat exchanger; 6. a thermocouple; 7. a high temperature camera; 8. a spray gun; 9. an air duct; 10. an air compressor; 11. an oxygenerator; 12. a waste liquid tank; 13. a waste liquid pipe; 14. a pneumatic diaphragm pump; 15. a kiln head waste heat boiler; 16. a hot air pipe; 17. a grate cooler; 18. plate-type honeycomb ceramic heat exchanger; 19. a kiln head cover; 20. an air cannon; 21. and (3) a cement kiln.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the present utility model provides a technical solution: the utility model provides a liquid danger of cement kiln head is useless in coordination treatment system, includes decomposition furnace 1, cement kiln 21, comb cold machine 17 and burns burning furnace 4, burns burning furnace 4 structure and is the cuboid, and inside is inlayed and is had resistant firebrick, and hanging ceramic heat exchanger 5 and plate-type honeycomb ceramic heat exchanger 18 are installed respectively to the both sides about the inner chamber of burning furnace 4, and the honeycomb heat exchanger is perforated plate planar structure, needs to have sufficient ventilation area. The heat exchanger has the functions of accelerating the realization of gasification combustion of waste liquid and reducing the entering of kiln head flying sand into the tertiary air pipe 3.
The bottom of the decomposing furnace 1 is communicated with the grate cooler 17 through a cement kiln 21, a kiln head cover 19 is arranged at the joint of the cement kiln 21 and the grate cooler 17, the incinerator 4 is communicated with the high-temperature section of the grate cooler 17, the top of the incinerator 4 is communicated with the decomposing furnace 1 through a tertiary air pipe 3, and a flashboard 2 is arranged on the tertiary air pipe 3.
The inlet of the incinerator 4 is provided with a spray gun 8, the incinerator 4 is also provided with an air cannon 20, and the spray gun 8 is respectively connected with an oxygen production system and a waste liquid atomization system.
The oxygen generating system comprises an air pipe 9 communicated with a spray gun 8, the height of the spray gun 8 is parallel to the height of a tertiary air pipe 3, an oxygen generator 11 and an air compressor 10 are respectively arranged at the tail end of the air pipe 9, oxygen-enriched air output by the oxygen generator 11 is added from an air inlet of the air compressor 10, and is pressurized by the air compressor 10 and then enters the furnace through the spray gun 8.
The waste liquid atomizing system comprises a waste liquid pipeline 13 communicated with the spray gun 8, and the tail end of the waste liquid pipeline 13 is respectively provided with a pneumatic diaphragm pump 14 and a waste liquid tank 12.
The bottom outlet of the incinerator 4 is communicated with the kiln head waste heat boiler 15 through a hot air pipe 16, and waste heat in the incinerator 4 can be utilized by the kiln head waste heat boiler 15.
A high-temperature camera 7 is arranged on one side of the incinerator 4, which is close to the spray gun 8, and is used for detecting the combustion condition in the incinerator, and a thermocouple 6 is arranged on the top of the incinerator 4 and is used for monitoring the temperature in the incinerator in real time.
And all that is not described in detail in this specification is well known to those skilled in the art.
When the device is used, waste liquid is stored in the waste liquid tank 12, the pneumatic diaphragm pump 14 is started, the waste liquid is conveyed into the spray gun 8 through the waste liquid pipeline 13, meanwhile, the oxygenerator 11 and the air compressor 10 are started, compressed air rich in oxygen is conveyed into the spray gun 8 through the air pipe 9, and the waste liquid and the compressed air rich in oxygen are mixed in the spray gun 8 and then are conveyed into the incinerator 4.
The waste liquid enters the incinerator 4 and then starts to burn, and in order to accelerate the gasification combustion of the waste liquid, a suspension type ceramic heat exchanger 5 and a plate type honeycomb ceramic heat exchanger 18 are respectively arranged on the upper side and the lower side of the inner cavity of the incinerator 4.
Most of the waste gas and unburned waste liquid are pumped away from the tertiary air duct 3, and the unburned waste liquid is burned again in the tertiary air duct 3 and the decomposing furnace 1.
In summary, according to the liquid hazardous waste collaborative disposal system for the cement kiln head, the independent incinerator is arranged at the inlet of the tertiary air pipe of the cement kiln head and is communicated with the high-temperature section of the grate cooler up and down, the temperature in the incinerator can reach about 900-1050 ℃, the waste heat generated by the grate cooler can be effectively utilized, and adverse effects on calcination caused by waste liquid burning in the cement kiln or the decomposing furnace can be avoided. The incinerator has the function of a sedimentation chamber, so that abrasion or accumulation of the flying sand material on a tertiary air pipe can be reduced; by adding the heat exchanger in the waste liquid incinerator, the gasification combustion of the waste liquid can be quickened, and meanwhile, the flying sand material can be reduced; by adopting the waste liquid oxygen-enriched pressurized atomization system, the waste liquid dispersing effect can be improved, and the waste liquid disposal efficiency can be improved.
It should be noted that, the electrical components appearing in this document are all electrically connected to the external master controller and 220V or 380V mains supply, and the master controller may be a conventional known device for controlling a computer, etc., and the control principle, the internal structure, the control switching manner, etc. of the master controller are all conventional means in the prior art, and are directly cited herein, which are not repeated herein, and relational terms such as first and second, etc. are used solely to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a cement kiln head liquid state danger useless co-processing system which characterized in that: the device comprises a decomposing furnace (1), a cement kiln (21), a grate cooler (17) and an incinerator (4), wherein the bottom of the decomposing furnace (1) is communicated with the grate cooler (17) through the cement kiln (21), the incinerator (4) is communicated with a high-temperature section of the grate cooler (17), the top of the incinerator (4) is communicated with the decomposing furnace (1) through a tertiary air pipe (3), and a flashboard (2) is arranged on the tertiary air pipe (3);
a spray gun (8) is arranged at the inlet of the incinerator (4), and the spray gun (8) is respectively connected with an oxygen production system and a waste liquid atomization system;
the bottom outlet of the incinerator (4) is communicated with a kiln head waste heat boiler (15) through a hot air pipe (16);
a high-temperature camera (7) is arranged on one side, close to the spray gun (8), in the incinerator (4), and a thermocouple (6) is arranged on the top of the incinerator (4).
2. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: the oxygen generating system comprises an air pipe (9) communicated with the spray gun (8), and an oxygen generator (11) and an air compressor (10) are respectively arranged at the tail end of the air pipe (9).
3. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: the waste liquid atomizing system comprises a waste liquid pipeline (13) communicated with the spray gun (8), and the tail end of the waste liquid pipeline (13) is respectively provided with a pneumatic diaphragm pump (14) and a waste liquid tank (12).
4. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: the upper side and the lower side of the inner cavity of the incinerator (4) are respectively provided with a suspension type ceramic heat exchanger (5) and a plate type honeycomb ceramic heat exchanger (18).
5. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: an air cannon (20) is also arranged on the incinerator (4).
6. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: a kiln head cover (19) is arranged at the joint of the cement kiln (21) and the grate cooler (17).
7. The cement kiln head liquid hazardous waste co-disposal system according to claim 1, wherein: the height of the spray gun (8) is parallel to the height of the tertiary air pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320938622.3U CN219829492U (en) | 2023-04-24 | 2023-04-24 | Cement kiln head liquid dangerous waste collaborative disposal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320938622.3U CN219829492U (en) | 2023-04-24 | 2023-04-24 | Cement kiln head liquid dangerous waste collaborative disposal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219829492U true CN219829492U (en) | 2023-10-13 |
Family
ID=88251995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320938622.3U Active CN219829492U (en) | 2023-04-24 | 2023-04-24 | Cement kiln head liquid dangerous waste collaborative disposal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219829492U (en) |
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2023
- 2023-04-24 CN CN202320938622.3U patent/CN219829492U/en active Active
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