CN210163396U - Processing system of combustible ash of high-temperature electric dust remover of double fluidized bed pyrolysis device - Google Patents
Processing system of combustible ash of high-temperature electric dust remover of double fluidized bed pyrolysis device Download PDFInfo
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- CN210163396U CN210163396U CN201920750981.XU CN201920750981U CN210163396U CN 210163396 U CN210163396 U CN 210163396U CN 201920750981 U CN201920750981 U CN 201920750981U CN 210163396 U CN210163396 U CN 210163396U
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Abstract
The utility model provides a processing system of combustible ash of double fluidized bed pyrolysis device high temperature electrostatic precipitator, belongs to double circulating fluidized bed pyrolysis device environmental protection technical field. Comprises a circulating fluidized bed combustion furnace, a circulating fluidized bed pyrolysis furnace, a coal gas high-temperature electric precipitator, an ash storage tank I, a water-cooling auger conveyor and the like; the export of circulating fluidized bed pyrolysis furnace passes through the access connection of gas piping and gas high temperature electrostatic precipitator, the ash hole of gas high temperature electrostatic precipitator passes through the conveyer pipe and is connected with the ash inlet of ash storage tank I, the ash hole of ash storage tank I passes through the conveyer pipe and is connected with the feed inlet of water-cooling auger conveyer, the discharge gate of water-cooling auger conveyer passes through the conveyer pipe and is connected with the ash inlet of ash storage tank II, the ash hole of ash storage tank II passes through the conveyer pipe and the entry linkage of ash conveying pipeline, the entry linkage of conveyer pipe and ash conveying pipeline is passed through in the export of compressed air jar, the export of ash conveying pipeline and the coal breakage mouth that fluidized bed fired furnace are connected. The utility model has the advantages of high reliability, combustible recycling and the like.
Description
Technical Field
The utility model belongs to the technical field of the dual circulating fluidized bed pyrolysis device environmental protection, concretely relates to processing system of combustible ash of dual fluidized bed pyrolysis device high temperature electrostatic precipitator.
Background
5/2015, the national energy agency issues a coal clean and efficient utilization action plan (2015-2020) (national energy coal [2015] 141), which definitely requires demonstration of stable promotion of coal quality processing, graded and graded utilization, coal mine waste resource utilization and the like, establishes a batch of coal clean and efficient utilization demonstration project, and particularly provides a definite development direction for works such as coal graded and graded utilization, coal resource comprehensive utilization efficiency improvement and the like. The graded utilization of coal according to quality is developed, the comprehensive utilization efficiency of coal resources is improved, and the integrated development of coal-electricity-heat is encouraged.
The coal in China mainly takes power generation as a main part, before the coal is combusted and generated, liquid and gas with high values are extracted through pyrolysis of a pyrolysis furnace, the residual semicoke is sent to a boiler for combustion and power generation, and the processed residual ash and slag are used as raw materials for building materials and cement production, so that the resource utilization of the coal is realized, and the utilization value of the coal is greatly improved.
The raw gas from the pyrolysis furnace contains combustible solid particles, and is subjected to dust removal by a high-temperature electric dust remover so as to reduce the content of the combustible solid particles in the gas, and the combustible solid particles separated by the high-temperature electric dust remover are stored in an ash tank. The separated combustible solid particles are not suitable to be stored in an ash tank for a long time due to the temperature of the combustible solid particles reaching 450 ℃.
In view of the defects of the prior system for treating combustible ash by using the coal gas high-temperature electric precipitator, the development of a treatment system suitable for the combustible ash of the prior coal gas high-temperature electric precipitator is urgently needed. Therefore, the research and development of the treatment system for the combustible ash of the coal gas high-temperature electric precipitator, which has the advantages of small investment, low energy consumption and convenient operation and maintenance, of the whole system is of great significance.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art for processing combustible ash by a high-temperature electric precipitator for coal gas, and provides a processing system for combustible ash by a high-temperature electric precipitator for a double fluidized bed pyrolysis device.
In order to achieve the above object, the utility model adopts the following technical scheme: a treatment system for combustible ash of a high-temperature electric dust remover of a double fluidized bed pyrolysis device comprises a circulating fluidized bed combustion furnace, and further comprises a circulating fluidized bed pyrolysis furnace, a coal gas high-temperature electric dust remover, an ash storage tank I, a water-cooling auger conveyor, an ash storage tank II, a compressed air tank and an ash conveying pipeline; the outlet of the circulating fluidized bed pyrolysis furnace is connected with the inlet of the coal gas high-temperature electric dust remover through a coal gas pipeline, the ash outlet of the coal gas high-temperature electric dust remover is connected with the ash inlet of the ash storage tank I through a conveying pipe, the ash outlet of the ash storage tank I is connected with the feed inlet of the water-cooling auger conveyor through a conveying pipe, the discharge outlet of the water-cooling auger conveyor is connected with the ash inlet of the ash storage tank II through a conveying pipe, the ash outlet of the ash storage tank II is connected with the inlet of the ash conveying pipeline through a conveying pipe, the outlet of the compressed air tank is connected with the inlet of the ash conveying pipeline through a conveying pipe, and the outlet of the ash conveying pipeline is connected with the coal falling port of the fluidized bed combustion furnace.
In a further preferred mode, the gas pipeline, the conveying pipe and the ash conveying pipeline are all stainless steel pipes.
Compared with the prior art, the utility model has the advantages of it is following and effect:
1. the system for treating the combustible ash is safe and environment-friendly, the high-temperature ash is cooled to 150 ℃ by a water-cooled auger conveyor, and the combustible ash is conveyed to a hearth by pneumatic conveying.
2. The system for treating the combustible ash has a strong energy-saving effect, and can bring the available solid particle fuel back to the hearth for reburning.
3. The treatment system of the combustible ash has high reliability and convenient use, and is suitable for the purification process of the coal pyrolysis crude gas.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the system for processing combustible ash of a high-temperature electric precipitator of a dual fluidized bed pyrolysis apparatus and the system for processing combustible ash of a high-temperature electric precipitator of a dual fluidized bed pyrolysis apparatus in the present embodiment include a circulating fluidized bed combustion furnace 1, wherein: the system also comprises a circulating fluidized bed pyrolysis furnace 2, a coal gas high-temperature electric dust remover 3, an ash storage tank I4, a water-cooling auger conveyor 5, an ash storage tank II 6, a compressed air tank 7 and an ash conveying pipeline 8; the outlet of the circulating fluidized bed pyrolysis furnace 2 is connected with the inlet of the coal gas high-temperature electric dust remover 3 through a coal gas pipeline, the ash outlet of the coal gas high-temperature electric dust remover 3 is connected with the ash inlet of the ash storage tank I4 through a conveying pipe, the ash outlet of the ash storage tank I4 is connected with the feed inlet of the water-cooling auger conveyor 5 through a conveying pipe, the discharge outlet of the water-cooling auger conveyor 5 is connected with the ash inlet of the ash storage tank II 6 through a conveying pipe, the ash outlet of the ash storage tank II 6 is connected with the inlet of the ash conveying pipeline 8 through a conveying pipe, the outlet of the compressed air tank 7 is connected with the inlet of the ash conveying pipeline 8 through a conveying pipe, and the outlet of the ash conveying pipeline 8 is connected with the coal dropping port of the fluidized bed combustion furnace 1.
The utility model discloses in gas pipeline, conveyer pipe and ash conveying pipeline are nonrust steel pipe.
Claims (2)
1. The utility model provides a processing system of combustible ash of double fluidized bed pyrolysis device high temperature electrostatic precipitator, includes circulating fluidized bed combustion furnace (1), its characterized in that: the device also comprises a circulating fluidized bed pyrolysis furnace (2), a coal gas high-temperature electric dust remover (3), an ash storage tank I (4), a water-cooling auger conveyor (5), an ash storage tank II (6), a compressed air tank (7) and an ash conveying pipeline (8); the export of circulating fluidized bed pyrolysis furnace (2) passes through the access connection of gas pipeline and gas high temperature electrostatic precipitator (3), the ash hole of gas high temperature electrostatic precipitator (3) passes through the conveyer pipe and the ash inlet of ash storage tank I (4) is connected, the ash hole of ash storage tank I (4) passes through the conveyer pipe and is connected with the feed inlet of water-cooling auger conveyer (5), the discharge gate of water-cooling auger conveyer (5) passes through the conveyer pipe and the ash inlet of ash storage tank II (6) is connected, the ash hole of ash storage tank II (6) passes through the entry linkage of conveyer pipe and ash conveying pipeline (8), the export of compressed air jar (7) passes through the entry linkage of conveyer pipe and ash conveying pipeline (8), the export of ash conveying pipeline (8) and the coal breakage mouth that fluidized bed fired furnace (1) are connected.
2. The system for treating combustible ash of the high-temperature electric dust remover for the double fluidized bed pyrolysis device as claimed in claim 1, wherein: the gas pipeline, the delivery pipe and the ash conveying pipeline are all stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750981.XU CN210163396U (en) | 2019-05-23 | 2019-05-23 | Processing system of combustible ash of high-temperature electric dust remover of double fluidized bed pyrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920750981.XU CN210163396U (en) | 2019-05-23 | 2019-05-23 | Processing system of combustible ash of high-temperature electric dust remover of double fluidized bed pyrolysis device |
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| CN210163396U true CN210163396U (en) | 2020-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920750981.XU Active CN210163396U (en) | 2019-05-23 | 2019-05-23 | Processing system of combustible ash of high-temperature electric dust remover of double fluidized bed pyrolysis device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110614A (en) * | 2021-11-22 | 2022-03-01 | 山西平朔煤矸石发电有限责任公司 | Pyrolysis process wastewater treatment system and method based on double-circulation fluidized bed boiler |
-
2019
- 2019-05-23 CN CN201920750981.XU patent/CN210163396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110614A (en) * | 2021-11-22 | 2022-03-01 | 山西平朔煤矸石发电有限责任公司 | Pyrolysis process wastewater treatment system and method based on double-circulation fluidized bed boiler |
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