CN210511701U - Cement kiln system capable of cooperatively treating powder and sludge wastes - Google Patents
Cement kiln system capable of cooperatively treating powder and sludge wastes Download PDFInfo
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- CN210511701U CN210511701U CN201921229643.8U CN201921229643U CN210511701U CN 210511701 U CN210511701 U CN 210511701U CN 201921229643 U CN201921229643 U CN 201921229643U CN 210511701 U CN210511701 U CN 210511701U
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Abstract
The utility model discloses a cement kiln system capable of cooperatively processing powder and sludge wastes, which comprises a decomposing furnace, a kiln tail smoke chamber, a rotary kiln, a powder waste pretreatment device and a sludge waste pretreatment device; the material collecting and conveying device A and the material collecting and conveying device B of the powder waste pretreatment device are respectively communicated with a magnetic separation device at the feeding ends, a material receiving bin is arranged at the discharging end, the material receiving bin is communicated with a feeding hole of a powder storage device, and a control valve is arranged; the powder storage device is communicated with the kiln tail smoke chamber through a discharge hole of the powder feeding device; the feed end of the sludge conveying device of the sludge waste pretreatment device is communicated with the discharge hole of the crusher, the discharge end of the sludge conveying device is arranged at the feed hole of the sludge storage device, the sludge storage device is communicated with the kiln tail smoke chamber through the discharge hole of the sludge feeding device, the cement kiln system not only ensures the burning effect of waste, but also realizes the effective synchronous coprocessing of powder and sludge waste.
Description
Technical Field
The utility model relates to a waste treatment technical field, in particular to can coprocessing powder class and cement kiln system of mud class discarded object.
Background
At present, domestic and foreign waste disposal methods are various, domestic and foreign traditional waste landfill is gradually limited and eliminated, domestic direct landfill methods are also edge-formed gradually, when industrial landfill is carried out, heavy metals and compounds thereof are easily polluted due to improper utilization of waste landfill land, so that soil pollution is caused, the soil enters human bodies through food chains, the health of the human bodies is influenced, and potential secondary pollution harmful to soil depletion and heavy metal pollution exists; has potential secondary pollution to underground water.
Therefore, the incineration disposal technology using the waste cement kiln becomes a research hotspot, and is a technology with better waste disposal effect at the present stage. Because the existing wastes are various in types, the premise that the quality of cement is not affected when different types of wastes are treated and utilized is needed, but the existing cement kiln is often limited by cement kiln system equipment, and because of the different types of wastes, the different treatment amounts and other factors, the waste treatment mode and the single type are adopted, so that the synchronous cooperative treatment of different types of wastes is difficult to be effectively carried out, and particularly when the wastes are directed to sludge and powder wastes, the wastes are usually treated separately, the treatment efficiency is low, and the energy consumption is large, so that a cement kiln system capable of effectively and synchronously and cooperatively treating the powder and sludge wastes is required to be found.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned current problem, the utility model aims at providing a can coprocessing powder class and the cement kiln system of mud class discarded object, its combination that is favorable to between the different discarded objects burns the order, guarantees the effect of burning of discarded object, has realized synchronous coprocessing powder class and mud class discarded object effectively.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a cement kiln system capable of cooperatively treating powder and sludge wastes comprises a decomposing furnace, a kiln tail smoke chamber, a rotary kiln, a powder waste pretreatment device and a sludge waste pretreatment device; two ends of the kiln tail smoke chamber are respectively communicated with the decomposing furnace and the rotary kiln;
the powder waste pretreatment device comprises a magnetic separation device, an aggregate conveying device A, an aggregate conveying device B, a powder storage device and a powder feeding device; the feeding ends of the aggregate conveying device A and the aggregate conveying device B are respectively communicated with the discharge hole of the magnetic separation device; the discharge ends of the aggregate conveying device A and the aggregate conveying device B are respectively and correspondingly provided with a material receiving bin, the bottom of the material receiving bin is communicated with the feed inlet of the powder storage device and is provided with a control valve, the discharge outlet of the powder storage device is connected with the feed inlet of the powder feeding device, and the discharge outlet of the powder feeding device is communicated with the kiln tail smoke chamber;
the sludge waste pretreatment device comprises a crusher, a sludge conveying device, a sludge storage device and a sludge feeding device; the feed end of the sludge conveying device is communicated with the discharge hole of the crusher, the discharge end of the sludge conveying device is arranged at the feed hole of the sludge storage device, the discharge hole of the sludge storage device is connected with the feed hole of the sludge feeding device, and the discharge hole of the sludge feeding device is communicated with the kiln tail smoke chamber.
Further explaining, the aggregate conveying device A and the aggregate conveying device B are both provided with an aggregate bin and a sealed transport vehicle; the feed inlet of the aggregate bin is communicated with the discharge outlet of the magnetic separation device; the discharge port of the aggregate bin is arranged at the feed end of the sealed transport vehicle; the discharge end of the sealed transport vehicle is arranged at the feed inlet of the material receiving bin.
Further explaining, the powder feeding device comprises a powder spray gun, a coal injection pipe and a high-pressure delivery pump; and the powder wastes in the powder storage device are conveyed to the coal injection pipe through the high-pressure conveying pump and are injected into the kiln tail smoke chamber through the powder spray gun.
Further, the sludge storage device is provided with a waste gas pipeline, the gas inlet end of the waste gas pipeline is communicated with the top of the sludge storage device, and the gas outlet end of the waste gas pipeline is communicated with the kiln tail smoke chamber.
Further explaining, the sludge feeding device comprises a sludge spray gun, a feeding pipeline and a thick slurry pump; and the sludge waste in the sludge storage device is conveyed to a sludge spray gun through the thick liquid pump by a feeding pipeline and is sprayed into the kiln tail smoke chamber by the sludge spray gun.
Further, the sludge storage device is a sludge waste storage tank bin, a cover plate is arranged on the top of the bin, and a feeding grid is arranged at a feeding port on the inner side of the cover plate.
Further, a heat insulation layer and a working layer are arranged inside and outside the kiln tail smoke chamber, the working layer is a high-aluminum anti-stripping castable layer, and the heat insulation layer is a calcium silicate plate layer.
Further, the decomposing furnace is a low NOx type decomposing furnace.
Further, the diameter of the rotary kiln is 5-6 m, the length is 80-120 m, and the inclination is 3.5%.
The beneficial effects of the utility model reside in that: through on the cement production system, powder class discarded object pretreatment device and mud discarded object pretreatment device have been installed additional respectively, especially in powder discarded object pretreatment device, magnetic separation device has been add, aggregate feeding device A and aggregate feeding device B, in order to reach effectual pretreatment and transportation effect to powder class discarded object and mud class discarded object, promote the combination burning order between the subsequent different discarded objects, the effect of destroying by burning of discarded object has been guaranteed, the interference degree of the harmful element content that greatly reduced discarded object introduced to cement kiln production, thereby realize utilizing the cement kiln to handle the mesh of mud class discarded object and powder class discarded object in coordination simultaneously, the treatment effeciency is high, reduce the energy consumption of whole cement kiln system.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive effort.
FIG. 1 is a schematic structural view of a cement kiln system capable of co-processing powder and sludge wastes.
In the figure, a decomposing furnace 1, a kiln tail smoke chamber 2, a rotary kiln 3, a powder waste pretreatment device 4, a magnetic separation device 41, an aggregate conveying device A42, an aggregate conveying device B43, a powder storage device 44, a powder feeding device 45, a powder spray gun 451, a coal injection pipe 452, a sludge waste pretreatment device 5, a crusher 51, a sludge conveying device 52, a sludge storage device 53, a sludge feeding device 54, a sludge spray gun 541, a feeding pipeline 542, a material receiving bin 6, a material collecting bin 7, a sealed transport vehicle 8, an exhaust pipeline 9 and a valve 10.
Detailed Description
In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1, a cement kiln system capable of cooperatively processing powder and sludge wastes comprises a decomposing furnace 1, a kiln tail smoke chamber 2, a rotary kiln 3, a powder waste pretreatment device 4 and a sludge waste pretreatment device 5; two ends of the kiln tail smoke chamber 2 are respectively communicated with the decomposing furnace 1 and the rotary kiln 3; the powder waste pretreatment device 4 comprises a magnetic separation device 41, an aggregate conveying device A42, an aggregate conveying device B43, a powder storage device 44 and a powder feeding device 45; the feeding ends of the aggregate feeding device A42 and the aggregate feeding device B43 are respectively communicated with the discharging hole of the magnetic separation device 41; the discharge ends of the aggregate feeding device A42 and the aggregate feeding device B43 are respectively and correspondingly provided with a material receiving bin 6, the bottom of the material receiving bin 6 is communicated with the feed inlet of the powder storage device 44 and is provided with a control valve 10, the discharge outlet of the powder storage device 44 is connected with the feed inlet of the powder feeding device 45, and the discharge outlet of the powder feeding device 45 is communicated with the kiln tail smoke chamber 2;
the sludge waste pretreatment device 5 comprises a crusher 51, a sludge conveying device 52, a sludge storage device 53 and a sludge feeding device 54; the feed end of the sludge conveying device 52 is communicated with the discharge hole of the crusher 51, the discharge end of the sludge conveying device 52 is arranged at the feed hole of the sludge storage device 53, the discharge hole of the sludge storage device 53 is connected with the feed hole of the sludge feeding device 54, and the discharge hole of the sludge feeding device 54 is communicated with the kiln tail smoke chamber 2.
The utility model provides a cement kiln system, can effectively realize utilizing cement kiln system synchronous coprocessing powder class and mud class discarded object's purpose, wherein, through on cement production system, powder class discarded object pretreatment device and mud discarded object pretreatment device have been installed additional respectively, especially in powder discarded object pretreatment device, add magnetic separation device, and set up aggregate feeding device A42 respectively, aggregate feeding device B43, be used for collecting respectively and transporting the powder class discarded object of different metal content and the magnetic powder discarded object that obtains after the magnetic separation, in order to reach the effectual pretreatment and transportation effect of powder class discarded object and mud class discarded object, and be favorable to the combination burning order between the subsequent different discarded object, thereby guarantee the effect of burning of discarded object, and carry out the homogenization storage through powder storage device and mud device separately respectively, and finally, the waste is sent into the kiln tail smoke chamber by the corresponding powder feeding device 45 and the sludge feeding device 54 to be fully combusted, so that the interference degree of the content of harmful elements introduced by the waste on the production of the cement kiln is greatly reduced, the aim of simultaneously and cooperatively treating the sludge waste and the powder waste by using the cement kiln is fulfilled, the treatment efficiency is high, and the energy consumption of the whole cement kiln system is reduced.
The operation principle of the cement kiln system is that sludge waste is sequentially crushed by a crusher 51, conveyed to a sludge storage device 53 through a sludge conveying device 52 and conveyed to a kiln tail smoke chamber through a sludge feeding device 54; after the powder wastes are subjected to magnetic separation by a magnetic separation device, two groups of powder wastes with different metal contents and magnetism are respectively borne by an aggregate conveying device A42 and an aggregate conveying device B43, are conveyed to a powder storage device and are conveyed to a kiln tail smoke chamber by a sludge feeding device 54, and in the process of incineration, the sludge wastes and the powder wastes with high metal contents and high magnetism are synchronously conveyed to the kiln tail smoke chamber through a control valve 10 for incineration disposal, and then the powder wastes with low metal contents and low magnetism are continuously added to the kiln tail smoke chamber for incineration disposal.
The sludge waste can be PTA sludge waste, the powder waste is waste catalyst powder waste, and the magnetic separation device is a medium-sized magnetic separation device.
Further, the aggregate conveying device A42 and the aggregate conveying device B43 are both provided with an aggregate bin 7 and a sealed transport vehicle 8; the feed inlet of the material collecting bin 7 is communicated with the discharge outlet of the magnetic separation device 41; the discharge hole of the aggregate bin 7 is arranged at the feed end of the sealed transport vehicle 8; the discharge end of the sealed transport vehicle 8 is arranged at the feed inlet of the material receiving bin 6.
Through the aggregate bin gathers materials to different powder discarded object, and passes through sealed transport vechicle carries, realizes stable gathering materials and defeated material function.
Further, the powder feeding device 45 comprises a powder spray gun 451, a coal injection pipe 452 and a high-pressure delivery pump; the powder waste in the powder storage device 44 is conveyed to the coal injection pipe 452 by the high-pressure conveying pump, and is injected into the kiln tail smoke chamber 2 by the powder injection gun 451. The powder storage device 44 is a waste catalyst storage tank bin, and the powder feeding device 45 is used for ensuring the continuity and smoothness of powder feeding.
Further, the sludge storage device 53 is provided with a waste gas pipeline 9, an air inlet end of the waste gas pipeline 9 is communicated with the top of the sludge storage device 23, and an air outlet end of the waste gas pipeline 9 is communicated with the kiln tail smoke chamber 2. Through setting up waste gas pipeline 9, through fan negative pressure extraction to send the waste gas that mud storage device 53 homogenization storage produced into kiln tail smoke chamber and burn in step with the discarded object.
Further, the sludge feeding device 54 includes a sludge lance 541, a feeding pipe 542, and a thick slurry pump; the sludge waste in the sludge storage device 53 is conveyed to the sludge spray gun 541 through the thick slurry pump by the feeding pipeline 542, and is sprayed into the kiln tail smoke chamber 2 by the sludge spray gun 541. The sludge conveying device 52 is a sealed transport vehicle, and the continuity and smoothness of sludge feeding are ensured by utilizing the sludge feeding device 54.
Further, the sludge storage device 53 is a sludge waste storage tank bin, a cover plate is arranged on the top of the bin, and a feeding grid is arranged at a feeding port on the inner side of the cover plate. The apron is favorable to the clean environment when feeding, and through setting up the pan feeding grid can play the effect that further stirring was mixed when the feeding, guarantees the degree of consistency of mud.
Further, a heat insulation layer and a working layer are arranged inside and outside the kiln tail smoke chamber 2, the working layer is a high-aluminum anti-stripping castable layer, and the heat insulation layer is a calcium silicate plate layer. The working layer of the kiln tail smoke chamber 2 is set as a high-aluminum anti-stripping castable layer, which is beneficial to synchronous combustion of sludge and powder wastes.
Further, the decomposing furnace is a low NOx type decomposing furnace. The low-NOx decomposing furnace is used for treating most of NOx generated in the cement kiln, reduces organic combination of nitrogen oxides in the production process, plays a good denitration effect and ensures that the emission of the NOx in the waste gas reaches the national standard.
Further, the diameter of the rotary kiln is 5-6 m, the length is 80-120 m, and the inclination is 3.5%. The burning space of the rotary kiln is enlarged, and the processing interval is prolonged so as to meet the processing requirements of sludge and powder wastes and maintain more uniform and stable burning atmosphere.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a can coprocessing powder class and cement kiln system of mud class discarded object which characterized in that: comprises a decomposing furnace, a kiln tail smoke chamber, a rotary kiln, a powder waste pretreatment device and a sludge waste pretreatment device; two ends of the kiln tail smoke chamber are respectively communicated with the decomposing furnace and the rotary kiln;
the powder waste pretreatment device comprises a magnetic separation device, an aggregate conveying device A, an aggregate conveying device B, a powder storage device and a powder feeding device; the material collecting and conveying device A and the material collecting and conveying device B are respectively communicated with the discharge hole of the magnetic separation device at the feed ends; the discharge ends of the aggregate conveying device A and the aggregate conveying device B are respectively and correspondingly provided with a material receiving bin, the bottom of the material receiving bin is communicated with the feed inlet of the powder storage device and is provided with a control valve, the discharge outlet of the powder storage device is connected with the feed inlet of the powder feeding device, and the discharge outlet of the powder feeding device is communicated with the kiln tail smoke chamber;
the sludge waste pretreatment device comprises a crusher, a sludge conveying device, a sludge storage device and a sludge feeding device; the feed end of the sludge conveying device is communicated with the discharge hole of the crusher, the discharge end of the sludge conveying device is arranged at the feed hole of the sludge storage device, the discharge hole of the sludge storage device is connected with the feed hole of the sludge feeding device, and the discharge hole of the sludge feeding device is communicated with the kiln tail smoke chamber.
2. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the aggregate conveying device A and the aggregate conveying device B are both provided with an aggregate bin and a sealed transport vehicle; the feed inlet of the aggregate bin is communicated with the discharge outlet of the magnetic separation device; the discharge port of the aggregate bin is arranged at the feed end of the sealed transport vehicle; the discharge end of the sealed transport vehicle is arranged at the feed inlet of the material receiving bin.
3. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the powder feeding device comprises a powder spray gun, a coal injection pipe and a high-pressure delivery pump; and the powder wastes in the powder storage device are conveyed to the coal injection pipe through the high-pressure conveying pump and are injected into the kiln tail smoke chamber through the powder spray gun.
4. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the sludge storage device is provided with a waste gas pipeline, the gas inlet end of the waste gas pipeline is communicated with the top of the sludge storage device, and the gas outlet end of the waste gas pipeline is communicated with the kiln tail smoke chamber.
5. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the sludge feeding device comprises a sludge spray gun, a feeding pipeline and a thick slurry pump; and the sludge waste in the sludge storage device is conveyed to a sludge spray gun through the thick liquid pump by a feeding pipeline and is sprayed into the kiln tail smoke chamber by the sludge spray gun.
6. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the sludge storage device is a sludge waste storage tank bin, the top of the bin is provided with a cover plate, and a feeding port in the inner side of the cover plate is provided with a feeding grid.
7. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the kiln tail smoke chamber is internally and externally provided with a heat insulation layer and a working layer, the working layer is a high-aluminum anti-stripping castable layer, and the heat insulation layer is a calcium silicate plate layer.
8. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the decomposing furnace is a low NOx type decomposing furnace.
9. The cement kiln system capable of co-processing powder and sludge wastes according to claim 1, wherein: the diameter of the rotary kiln is 5-6 m, the length of the rotary kiln is 80-120 m, and the inclination of the rotary kiln is 3.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229643.8U CN210511701U (en) | 2019-07-31 | 2019-07-31 | Cement kiln system capable of cooperatively treating powder and sludge wastes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921229643.8U CN210511701U (en) | 2019-07-31 | 2019-07-31 | Cement kiln system capable of cooperatively treating powder and sludge wastes |
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| Publication Number | Publication Date |
|---|---|
| CN210511701U true CN210511701U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921229643.8U Expired - Fee Related CN210511701U (en) | 2019-07-31 | 2019-07-31 | Cement kiln system capable of cooperatively treating powder and sludge wastes |
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| CN (1) | CN210511701U (en) |
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- 2019-07-31 CN CN201921229643.8U patent/CN210511701U/en not_active Expired - Fee Related
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Granted publication date: 20200512 Termination date: 20210731 |