CN220573099U - Rotary kiln dust and waste gas treatment system - Google Patents
Rotary kiln dust and waste gas treatment system Download PDFInfo
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- CN220573099U CN220573099U CN202321707536.8U CN202321707536U CN220573099U CN 220573099 U CN220573099 U CN 220573099U CN 202321707536 U CN202321707536 U CN 202321707536U CN 220573099 U CN220573099 U CN 220573099U
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- rotary kiln
- alkaline water
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- dust
- pipeline
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- 239000000428 dust Substances 0.000 title claims abstract description 77
- 239000002912 waste gas Substances 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 38
- 230000023556 desulfurization Effects 0.000 claims abstract description 38
- 239000002351 wastewater Substances 0.000 claims abstract description 24
- 239000008235 industrial water Substances 0.000 claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims description 37
- 238000004062 sedimentation Methods 0.000 claims description 15
- 238000003860 storage Methods 0.000 claims description 12
- 230000003009 desulfurizing effect Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 17
- 239000003546 flue gas Substances 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 13
- 239000003513 alkali Substances 0.000 description 10
- 238000005553 drilling Methods 0.000 description 10
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000004064 recycling Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000001354 calcination Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln dust and waste gas treatment system, which comprises a rotary kiln and a dust remover, wherein a feeding pipeline is arranged at the top of the rotary kiln, a smoke chamber is communicated at the kiln tail of the rotary kiln, the rotary kiln further comprises a desulfurization unit communicated with the dust remover, the desulfurization unit comprises a desulfurization tower and an alkaline water system, a circulating pipeline system is arranged between the desulfurization tower and the alkaline water system, the circulating pipeline system comprises an alkaline water circulating pipeline, an industrial water circulating pipeline and a waste water circulating pipeline, a kiln dust transmission device is arranged between the dust remover and the feeding pipeline, the kiln dust transmission device comprises a lifting machine and a spiral feeder communicated to the bottom of the dust remover, the top of the lifting machine is communicated with the feeding pipeline, and the desulfurization efficiency of flue gas can be improved while the problem of difficult dust recovery at the bottom of the dust remover can be solved.
Description
Technical Field
The utility model relates to the technical field of rotary kilns, in particular to a rotary kiln dust and waste gas treatment system.
Background
The oil-based drilling cuttings refer to solid waste generated by contact of drilling fluid with stratum rock in the petroleum drilling process, the treatment of the oil-based drilling cuttings is mainly for effectively separating and recycling the drilling fluid contained in the oil-based drilling cuttings so as to be reused, and after preliminary recycling, the oil-based drilling cuttings with a small amount of residual drilling fluid can be recycled by removing the residual drilling fluid and other pollutants through calcination, and can be used as raw materials of building materials.
The inventor finds that the rotary kiln can be adopted to calcine oil-based drilling cuttings, the rotary kiln is also called a calcining kiln (commonly called a rotary kiln), the rotary kiln is mainly used in a plurality of production industries such as building materials, metallurgy, chemical industry, environmental protection and the like, the rotary kiln is specially used for carrying out mechanical, physical or chemical treatment on solid materials, a material inlet of the rotary kiln is a kiln tail, a material outlet of the rotary kiln is a kiln head, the rotary kiln is arranged from the kiln tail to the kiln head in a downward inclined manner, smoke generated in the process of calcining the oil-based cuttings can flow into a smoke chamber at the kiln tail, smoke stored in the smoke chamber is generally purified by a dust removing system and a desulfurizing system in sequence, and the dust removing system is used for collecting dust in the smoke and desulfurizing the smoke so as to realize harmless treatment on the smoke.
The desulfurization system usually adopts a sodium-based desulfurizing agent to carry out desulfurization, alkaline water (mixed solution of NaOH and Ca (OH) 2) is injected into a desulfurization tower, and the atomized alkaline water fully reacts with sulfur-containing flue gas, SO that SO2 in the flue gas is removed, and liquid in a desulfurization product can fall into the bottom of the desulfurization tower (hereinafter, collectively referred to as wastewater).
However, the following technical problems easily occur in the practical application process:
1. dust discharged from the bottom of the dust remover is usually cleaned by adopting a cloth bag collection mode or a spade shoveling mode, and the dust remover and the spade are very troublesome and require monitoring and participation of staff; the latter is easy to generate dust in the cleaning process, thereby polluting the working environment and the atmospheric environment; meanwhile, harmful substances are easy to remain in the dust because the dust is not completely calcined, and the dust is not beneficial to direct recycling.
2. The waste water contains a large amount of harmful substances including sulfur dioxide, and cannot be directly discharged, in the prior art, slaked lime is added into the waste water to convert the sulfur dioxide in the waste water into sulfite to precipitate out, and then the sulfite is recycled, so that the waste water can be used for preparing other byproducts such as lime, but only single precipitation is carried out, and sulfur-containing pollutants in the waste water cannot be completely removed.
Disclosure of Invention
The utility model provides a rotary kiln dust and waste gas treatment system, which can solve the problems that dust is easy to generate and recycling is inconvenient when dust is cleaned.
The application provides the following technical scheme:
the rotary kiln dust and waste gas treatment system comprises a rotary kiln and a dust remover, wherein a feeding pipeline is arranged at the top of the rotary kiln, a smoke chamber is communicated with the kiln tail of the rotary kiln, the rotary kiln dust and waste gas treatment system further comprises a desulfurization unit communicated with the dust remover, the desulfurization unit comprises a desulfurization tower and an alkaline water system, a circulating pipeline system is arranged between the desulfurization tower and the alkaline water system, and the circulating pipeline system comprises an alkaline water circulating pipeline, an industrial water circulating pipeline and a waste water circulating pipeline; the alkaline water system comprises an alkaline water buffer tank, a sedimentation tank, a stirring tank and a standing tank, wherein the stirring tank is adjacent to the standing tank and the sedimentation tank respectively, overflow ports are formed in the adjacent tank walls, the wastewater circulating pipeline comprises a drain pipe communicated with the desulfurization tower, the other end of the drain pipe is communicated with the sedimentation tank, and a conveying pump is arranged in the middle section of the drain pipe; one end of the industrial water circulating pipeline is communicated with the stirring pool, the other end of the industrial water circulating pipeline is communicated with the alkaline water buffer pool, and a filter press and a delivery pump are arranged on the industrial water circulating pipeline; and a kiln ash conveying device is arranged between the dust remover and the feeding pipeline and comprises a lifting machine and a spiral feeder communicated to the bottom of the dust remover, and the top of the lifting machine is communicated with the feeding pipeline.
The beneficial effects are that:
1. after the wastewater collected at the bottom of the desulfurization tower is conveyed to the sedimentation tank for preliminary sedimentation, the wastewater enters the stirring tank through an overflow port between the sedimentation tank and the stirring tank, so that industrial water in the tank and a small amount of residual sulfite precipitate in the wastewater are uniformly mixed, the wastewater is filtered through a filter press arranged beside the stirring tank, and the filtered industrial water after sulfite is conveyed into an alkaline water buffer tank through a pipeline to complete the circulating treatment of the wastewater, thereby being beneficial to ensuring that sulfur-containing pollutants in the wastewater are cleaned and ensuring the desulfurization efficiency of flue gas.
2. The dust at the bottom of the dust remover is transmitted back to the rotary kiln through the kiln dust transmission device to be calcined again, thereby being beneficial to removing harmful substances in the dust, and the calcined dust mixed oil-based rock dust can be used as a building material and is beneficial to realizing the recycling of resources.
Further, be equipped with a plurality of cake-shaped filter screen woven by the wire in the desulfurizing tower, alkaline water circulation pipeline is including fixing a plurality of annular pipeline at the desulfurizing tower inner wall, annular pipeline and filter screen interval set up, and every annular pipeline all is located the top of filter screen, can dismantle on the annular pipeline and be connected with the shower nozzle of a plurality of nozzle downwardly directed.
The beneficial effects are that: the flue gas is conveyed from the lower part of the desulfurizing tower to the upper part, the filter screen can slow down the rising speed of the flue gas, so that alkali liquor sprayed out of the spray head on the annular pipeline fully reacts with the rising flue gas, the desulfurizing effect of the alkali liquor is enhanced, the filter screen can adsorb fine dust in the flue gas, the dust is attached to a metal wire of the filter screen, finally, the dust on the filter screen is washed through the alkali liquor, all waste water is collected at the bottom of the desulfurizing tower, and the waste water is conveniently discharged into a waste water treatment system for treatment.
Further, the rotary kiln further comprises a transfer bin, an electric valve is arranged at the bottom of the transfer bin, the feeding pipeline penetrates through the transfer bin and the kiln tail of the rotary kiln to be communicated, and the transfer bin is communicated with the top of the lifting machine.
The beneficial effects are that: the arrangement of the transfer bin is beneficial to controlling the amount of dust and oil-based rock debris entering the rotary kiln, and is beneficial to avoiding the effect of influencing calcination due to material accumulation.
Further, the lifting machine comprises a shell and a bucket lifting mechanism arranged in the shell, a storage hopper is fixedly arranged at the bottom of the shell, and a feed inlet of the lifting machine is arranged at a position, close to the storage hopper, on the shell.
The beneficial effects are that: the bucket elevator has simple structure and easy control, and is favorable for timely lifting dust accumulated at the bottom of the dust remover to the transfer bin.
Further, the spiral feeder comprises a feeding rod, spiral blades spirally wound on the feeding rod, and a motor coaxially arranged with the feeding rod.
The beneficial effects are that: the spiral feeder has a simple structure and high feeding efficiency, and is beneficial to timely feeding dust collected at the bottom of the dust remover into the elevator.
Further, the alkaline water batching system comprises a clear water pipe, and an alkaline ash tank, an alkaline water batching stirring tank and an alkaline water storage stirring tank which are sequentially communicated in series through pipelines, wherein a screw conveyor is arranged on the pipeline between the alkaline ash tank and the alkaline water batching stirring tank, the alkaline water batching stirring tank is communicated with a standing pool, and the alkaline water batching stirring tank is also communicated with the clear water pipe.
The beneficial effects are that: the spiral conveyor is used for conveying sodium hydroxide powder in the alkali ash tank into the alkali water batching and stirring tank, and industrial water in the standing pool can be conveyed into the alkali water batching and stirring tank so as to save the using amount of clean water.
Drawings
FIG. 1 is a front view of a first embodiment of a rotary kiln dust and exhaust gas treatment system of the present utility model;
FIG. 2 is a top view of the desulfurization unit of FIG. 1;
FIG. 3 is a front view of the kiln dust transport apparatus of FIG. 1;
FIG. 4 is a schematic view of the interior of the kiln dust transport apparatus of FIG. 3;
Detailed Description
The following is a further detailed description of the embodiments:
the labels in the drawings of this specification include: the rotary kiln 1, the dust remover 2, the desulfurization unit 3, the feeding pipeline 4, the flue gas chamber 5, the desulfurization tower 31, the alkaline water system 32, the filter screen 311, the alkaline water buffer tank 321, the sedimentation tank 322, the stirring tank 323 and the standing tank 324, the overflow port 325, the annular pipeline 326, the spray nozzle 327, the filter press 328, the conveying pump 329, the stirrer 330, the alkaline water batching system 6, the clean water pipe 61, the alkaline ash tank 62, the alkaline water batching stirring tank 63, the alkaline water storage stirring tank 64, the lifting machine 7, the screw feeder 8, the transfer bin 9, the shell 71, the storage hopper 72, the mounting table 73, the driving wheel 74, the first driving wheel 75, the first driven wheel 76, the second driven wheel 77, the transmission chain 78, the hopper 79, the feeding rod 81 and the screw blade 82.
Example 1
The rotary kiln dust and waste gas treatment system comprises a rotary kiln 1, a dust remover 2 and a desulfurization unit 3, wherein a feeding pipeline 4 is arranged at the top of the rotary kiln 1, a belt conveyor is fixedly arranged in the feeding pipeline 4 and used for conveying oil-based rock fragments to be calcined, a smoke chamber 5 is communicated with the kiln tail of the rotary kiln 1, the rotary kiln 1 is obliquely arranged, smoke generated by calcining the oil-based rock fragments can flow into the smoke chamber 5, the smoke chamber 5 is communicated with the dust remover 2 through a pipeline, and the smoke in the smoke chamber 5 is sucked into the dust remover 2 through a fan, so that dust can be collected at the bottom of the dust remover 2.
The desulfurization unit 3 is communicated with the dust remover 2, the desulfurization unit 3 comprises a desulfurization tower 31 and an alkaline water system 32, a fan is arranged between the desulfurization tower 31 and the dust remover 2 and used for absorbing dust-removed flue gas, a plurality of round cake-shaped filter screens 311 woven by metal wires are arranged in the desulfurization tower 31, the outer edge of each filter screen 311 is clung to the inner wall of the desulfurization tower 31, so that the flow rate of the flue gas conveyed from bottom to top can be slowed down, alkaline liquid sprayed from top to bottom fully reacts with the flue gas, the desulfurization effect is improved, and fine dust in the flue gas can be adsorbed on the filter screens 311 to further eliminate trace dust contained in the flue gas;
the alkaline water system 32 comprises an alkaline water buffer tank 321, a sedimentation tank 322, a stirring tank 323 and a standing tank 324 which are arranged in a 'field' -shaped manner, wherein wastewater from the desulfurization tower 31 flows into the sedimentation tank 322 through a conveying pump, slaked lime is added into the sedimentation tank 322 and then reacts with the wastewater to convert sulfur dioxide in the wastewater into sulfite to precipitate out, then sulfite is recycled and can be used for preparing other byproducts such as lime, and an overflow port 325 is arranged on the tank wall between the sedimentation tank 322 and the stirring tank and between the stirring tank 323 and the standing tank 324, so that the wastewater from the desulfurization tower 31 which is precipitated in the sedimentation tank 322 can flow into the stirring tank through the overflow port 325, then the water in the stirring tank flows into the standing tank through the overflow port 325, the alkaline water buffer tank 321 is used for storing alkaline water, and a water pump is arranged in the tank and is used for pumping alkaline water into the desulfurization tower 31, thereby desulfurizing flue gas;
the alkaline water system 32 further comprises an alkaline water batching system 6, the alkaline water batching system 6 comprises a clear water pipe 61, an alkaline ash tank 62, an alkaline water batching stirring tank 63 and an alkaline water storage stirring tank 64 which are sequentially communicated in series through pipelines, a screw conveyer is arranged on a pipeline between the alkaline ash tank 62 and the alkaline water batching stirring tank 63, the alkaline water batching stirring tank 63 is communicated with a standing pool, when the alkaline water batching system 6 needs batching, water in the standing pool can be sent into the alkaline water batching system 6 through the pipeline, and the alkaline water batching stirring tank 63 is communicated with the clear water pipe 61;
a circulating pipeline system is arranged between the desulfurization tower 31 and the alkaline water system 32, and comprises an alkaline water circulating pipeline, an industrial water circulating pipeline and a wastewater circulating pipeline;
the alkali water circulation pipeline comprises a plurality of annular pipelines 326 fixed on the inner wall of the desulfurization tower 31, the annular pipelines 326 and the filter screen 311 are arranged at intervals, each annular pipeline 326 is positioned above the filter screen 311, a plurality of spray heads 327 with downward spray nozzles are detachably connected to the annular pipelines 326, alkali water from the alkali water buffer pool 321 is sprayed out in a fine water mist shape through the spray heads 327, and the alkali water is fully contacted with upward surging flue gas from top to bottom to complete the desulfurization process of the flue gas;
one end of the industrial water circulation pipeline is communicated with the stirring pool, the other end of the industrial water circulation pipeline is communicated with the alkaline water buffer pool 321, a filter press 328 and a conveying pump 329 are arranged on the industrial water circulation pipeline, a stirrer 330 is arranged at the bottom of the stirring pool, when the concentration of alkaline water needs to be diluted in the alkaline water buffer pool 321, the stirrer 330 can be started, so that water in the stirring pool and a small amount of sulfite sediment contained in the water are uniformly mixed, then the water is filtered through the filter press 328, and finally the water after sulfite is filtered out is conveyed into the alkaline water buffer pool through the pipeline;
a kiln ash conveying device is arranged between the dust remover 2 and the feeding pipeline 4, the kiln ash conveying device comprises a lifting machine 7 and a spiral feeder 8 communicated to the bottom of the dust remover 2, the top of the lifting machine 7 is communicated with the feeding pipeline 4, the kiln ash conveying device also comprises a transfer bin 9, an electric valve is arranged at the bottom of the transfer bin 9 and used for controlling the opening and closing of the transfer bin 9, the feeding pipeline 4 passes through the transfer bin 9 and is communicated with the kiln tail of the rotary kiln 1, and the transfer bin 9 is communicated with the top of the lifting machine 7;
the screw feeder 8 comprises a feeding rod 81 and a screw blade 82 spirally encircling the feeding rod 81, and further comprises a motor coaxially arranged with the feeding rod 81, wherein the motor drives the feeding rod 81 and the screw blade 82 to rotate so as to convey dust deposited at the bottom of the dust remover 2 into a storage hopper 72 in the lifting machine 7 from bottom to top;
the lifting machine 7 comprises a shell 71 and a bucket type lifting machine 7 mechanism arranged in the shell 71, a storage hopper 72 is fixedly arranged at the bottom of the shell 71, a feed inlet of the lifting machine 7 is arranged at a position, close to the storage hopper 72, on the shell 71, a mounting table 73 is arranged on the side wall of the top of the shell 71, a motor is fixedly arranged on the mounting table 73, a driving wheel 74 is coaxially arranged on the motor, a first driving wheel 75 is further arranged on the top of the shell 71, the driving wheel 74 and the first driving wheel 75 are driven through a sleeved belt, a first driven wheel 76 is fixedly arranged in the shell 71 and is coaxial with the first driving wheel 75, a second driven wheel 77 corresponding to the first driven wheel 76 is fixedly arranged at the bottom of the shell 71, a transmission chain 78 is used between the first driven wheel 76 and the second driven wheel 77, a plurality of hoppers 79 are fixedly arranged on the transmission chain 78, when the hoppers 79 rotate to the top, dust in the hoppers 79 is thrown into a pipeline communicated between a transfer bin 9 and the lifting machine 7 under the action of inertia, and the pipeline is worth explaining that the pipeline is internally provided with a belt conveyer for conveying the dust to the transfer bin 9 and the rotary kiln to be mixed with the rotary kiln through the oil-based dust throwing pipeline 4 for recycling and finally, and the dust is thrown into the rotary kiln 1 for recycling treatment.
The above is merely an embodiment of the present utility model, and the present utility model is not limited to the field of the present embodiment, but the specific structure and characteristics of the present utility model are not described in detail. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. The rotary kiln dust and waste gas treatment system comprises a rotary kiln and a dust remover, wherein a feeding pipeline is arranged at the top of the rotary kiln, and a smoke chamber is communicated with the kiln tail of the rotary kiln, and the rotary kiln dust and waste gas treatment system is characterized in that: the desulfurization unit comprises a desulfurization tower and an alkaline water system, and a circulating pipeline system is arranged between the desulfurization tower and the alkaline water system and comprises an alkaline water circulating pipeline, an industrial water circulating pipeline and a wastewater circulating pipeline;
the alkaline water system comprises an alkaline water buffer tank, a sedimentation tank, a stirring tank and a standing tank, wherein the stirring tank is adjacent to the standing tank and the sedimentation tank respectively, overflow ports are formed in the adjacent tank walls, the wastewater circulating pipeline comprises a drain pipe communicated with the desulfurization tower, the other end of the drain pipe is communicated with the sedimentation tank, and a conveying pump is arranged in the middle section of the drain pipe;
one end of the industrial water circulating pipeline is communicated with the stirring pool, the other end of the industrial water circulating pipeline is communicated with the alkaline water buffer pool, and a filter press and a delivery pump are arranged on the industrial water circulating pipeline;
and a kiln ash conveying device is arranged between the dust remover and the feeding pipeline and comprises a lifting machine and a spiral feeder communicated to the bottom of the dust remover, and the top of the lifting machine is communicated with the feeding pipeline.
2. The rotary kiln dust and exhaust gas treatment system of claim 1, wherein: be equipped with a plurality of cake-shaped filter screen woven by the metal wire in the desulfurizing tower, alkaline water circulation pipeline is including fixing a plurality of annular duct at the desulfurizing tower inner wall, annular duct and filter screen interval set up, and every annular duct all is located the top of filter screen, can dismantle on the annular duct and be connected with the shower nozzle of a plurality of nozzle downwardly directed.
3. The rotary kiln dust and exhaust gas treatment system of claim 1 or 2, wherein: still include the transfer storehouse, the bottom in transfer storehouse sets up electric valve, the kiln tail intercommunication of transfer storehouse and rotary kiln is passed to the pan feeding pipeline, the top intercommunication of transfer storehouse and lifting machine.
4. A rotary kiln dust and exhaust gas treatment system according to claim 3, wherein: the elevator comprises a shell and a bucket type lifting mechanism arranged in the shell, wherein a storage hopper is fixedly arranged at the bottom of the shell, and a feed inlet of the elevator is arranged at a position, close to the storage hopper, on the shell.
5. The rotary kiln dust and exhaust gas treatment system of claim 4, wherein: the spiral feeder comprises a feeding rod, spiral blades spirally wound on the feeding rod, and a motor coaxially arranged with the feeding rod.
6. The rotary kiln dust and exhaust gas treatment system of claim 1 or 5, wherein: the alkaline water system further comprises an alkaline water batching system, the alkaline water batching system comprises a clear water pipe, and an alkaline ash tank, an alkaline water batching stirring tank and an alkaline water storage stirring tank which are sequentially communicated in series through pipelines, a screw conveyor is arranged on a pipeline between the alkaline ash tank and the alkaline water batching stirring tank, the alkaline water batching stirring tank is communicated with a standing pool, and the alkaline water batching stirring tank is further communicated with the clear water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321707536.8U CN220573099U (en) | 2023-06-30 | 2023-06-30 | Rotary kiln dust and waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321707536.8U CN220573099U (en) | 2023-06-30 | 2023-06-30 | Rotary kiln dust and waste gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220573099U true CN220573099U (en) | 2024-03-12 |
Family
ID=90113151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321707536.8U Active CN220573099U (en) | 2023-06-30 | 2023-06-30 | Rotary kiln dust and waste gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220573099U (en) |
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2023
- 2023-06-30 CN CN202321707536.8U patent/CN220573099U/en active Active
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