CN211079032U - Novel zero-emission coal dry distillation device - Google Patents
Novel zero-emission coal dry distillation device Download PDFInfo
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- CN211079032U CN211079032U CN201920222826.0U CN201920222826U CN211079032U CN 211079032 U CN211079032 U CN 211079032U CN 201920222826 U CN201920222826 U CN 201920222826U CN 211079032 U CN211079032 U CN 211079032U
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Abstract
The utility model provides a novel zero discharge coal dry distillation device which characterized in that: the device comprises a clean carbon production process device, a coal gas circulating device, a tar treatment device, a waste heat and smoke utilization device and a water circulating device, wherein the clean carbon production process device and the coal gas circulating device are mutually communicated through a coke gas pipeline and a coal gas pipeline, the clean carbon production process device and the tar treatment device are mutually communicated through the waste heat and smoke utilization device, and the clean carbon production process device, the tar treatment device and the coal gas circulating device are mutually communicated through the water circulating device.
Description
Technical Field
The utility model belongs to the clean field of utilizing of coal, concretely relates to novel zero discharge coal dry distillation device.
Background
The energy structure of China shows that the oil and gas are rich in coal, poor in oil and less in gas, the import quantity of oil and natural gas reaches 69 percent and 40 percent, 4.2 hundred million tons of crude oil are imported in 2017, and 838 hundred million cubic meters of natural gas threatens the strategic safety of energy. Meanwhile, China is the largest energy consuming country in the world and accounts for 23% of the global consumption and 27% of the global energy consumption increase. Therefore, coal is more prominent in China as one of three major energy sources in the world. Compared with petroleum, natural gas and other energy resources, coal is more economical and cheaper, so that the coal is clean and has absolute economic advantages compared with petroleum products. How to improve the added value of coal becomes a hotspot in coal chemical industry in recent years, such as coal-to-liquid, coal carbonization and the like.
However, powdery semi coke is produced by the traditional coal-to-liquid and coal dry distillation technology, inorganized pollution emission is easily caused in the production process, and a large amount of sewage and odor can be generated by reducing the temperature of the semi coke through water cooling; meanwhile, the semi-coke formed after dry distillation has poor internal oxygen permeability and is difficult to burn out completely. In addition, the requirements on the quality and the granularity of raw coal for producing semi-coke are high, and the traditional technology is restricted by various aspects such as process, environmental protection and the like, so that the semi-coke is difficult to popularize in large scale in China.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel zero discharge coal dry distillation device reaches the more strong clean scheme of utilizing of zero release and coal type adaptability among the coal dry distillation process.
The utility model provides a novel zero discharge coal dry distillation device which characterized in that: the device comprises a clean carbon production process device, a gas circulating device, a tar treatment device, a waste heat flue gas utilization device and a water circulating device, wherein coke gas and tar liquid of the clean carbon production process device are processed into gas and tar in the gas circulating device and the tar treatment device, and circulating water of hot flue gas and the water circulating device of the waste heat flue gas utilization device enters the clean carbon production process device, the gas circulating device and the tar treatment device.
By adopting the device, the produced clean carbon is in a complete shape manufactured according to the requirements of customers, no powder is generated, no pollution is discharged in the production process, and meanwhile, the clean carbon adopts a mode of molding firstly and then dry distillation, the permeability of the inner part of a finished product is good, and the finished product can be completely burnt out. In addition, the requirements on the quality and the granularity of raw coal for producing the semi-coke are not high, the method is suitable for all common coal types, and can be widely popularized in China.
The clean carbon production process device further comprises an on-site stirrer, a temperature and humidity regulator, a hot press forming machine, a material elevator and an integrated furnace, wherein the integrated furnace is provided with a material elevator feeding port and an air hole, and the integrated furnace is internally provided with four sections of preheating, pyrolysis, smoldering and cooling.
By adopting the device, the low-rank coal powder is stirred on site after being added with the adhesive, then is subjected to hot pressing forming after being adjusted by a temperature and humidity adjusting machine, and is sent into a furnace for preheating, pyrolysis, smoldering and cooling by a material lifting machine to finally generate the clean carbon; the water required by the on-site stirring is provided by tar liquid in the tar treatment device; the heat required by temperature and humidity regulation and hot-press molding is provided by the heat in the waste heat flue gas utilization device; preheating, pyrolysis, smoldering and cooling are carried out in an integrated furnace, and the output proportion of clean carbon, coal gas and tar can be adjusted by adjusting the preheating, pyrolysis, smoldering and cooling time in the furnace; the device is firstly hot-press molded, then preheated, pyrolyzed, smoldered and cooled, and can produce clean carbon with different shapes and sizes according to requirements. The requirements of the traditional coal dry distillation system on the granularity of coal types after dry distillation and molding are reduced, the adaptability of dry distillation coal types is improved, and meanwhile, the clean coal types after dry distillation and molding are fully distributed with mesh capillary pores, so that the dry distillation coal type dry distillation coal briquette has good oxygen permeability and high strength, is not afraid of rainwater soaking, and can ensure more sufficient combustion in the use process.
The coal gas circulating device comprises an oil-gas separator, a coal gas separator and an electrostatic oil trap, and the coal gas of the coal gas circulating device enters the integrated furnace and the coal-fired power generation boiler through the air holes and the coal gas pipeline.
By adopting the device, the coke gas generated in the smoldering process generates gas after oil-gas separation, gas separation and electrostatic oil trapping; the coal gas is divided into two parts, one part returns to the furnace through the air holes to provide heat for smoldering and cool clean coal, thereby forming coal gas circulation, and the other part of the coal gas is used for a coal-fired power generation boiler or other combustion aspects. The coal gas is recycled in the coal dry distillation process, and the clean carbon is cooled by the cold coal gas without water cooling, so that the water resource consumption is saved, and no additional waste water is generated.
According to a further technical scheme, the waste heat flue gas utilization device is connected with the hot-pressing forming machine, the temperature and humidity regulator and the tar purifier through a flue gas pipeline, and flue gas which supplies heat enters the coal-fired power generation boiler or the environment-friendly treatment device through the flue gas pipeline.
Adopt above-mentioned device, the waste heat flue gas that the low order coal preheats in integrative stove, pyrolysis, smoldering back produced is utilized clean type carbon production process units, tar processing apparatus by make full use of, and final flue gas directly gets into the burning in the stove under airtight state, then gets into the environmental protection device of power plant, ensures environmental protection discharge to reach standard, has stopped the problem that traditional coal chemical industry pollutant unorganized emission.
The water circulation device comprises an oil-gas separator, a field stirrer, a temperature and humidity regulator and a tar precipitation oil-water separator, wherein the temperature and humidity regulator is provided with an external interface for discharging excessive water.
By adopting the device, water after oil-gas separation enters a tar precipitation oil-water separation device in the tar treatment device, the separated tar liquid is used for on-site stirring in a clean carbon production process device and then enters a temperature and humidity regulator, and redundant water is condensed and then returns to an oil-gas separation device in a gas circulation device to form water circulation, and no water is discharged outside in the whole circulation process; the excess moisture of the temperature and humidity regulator can also be used for dust removal spraying, flower watering in living areas and the like through an external interface, and the wastewater generated in the coal carbonization process is completely recycled and can be discharged without wastewater.
The further technical proposal is that the tar processing device comprises an oil-gas separator, a tar precipitation oil-water separator and a tar purifier.
By adopting the device, oil, water and gas generated by oil-gas separation enter tar precipitation and tar separated by oil-water separation, and are stored and sold to the outside after being purified; the odor and the coal gas separated from oil-water separation of tar precipitation enter a pyrolysis link in a clean carbon production process device to form coal gas circulation again. Can effectively separate tar, tar liquid, coal gas and odor, and can recycle tar liquid, coal gas and odor except the tar which can be sold to the outside.
Compared with the prior art, the utility model has the following advantage: the integrated quality-divided oil-gas-carbon production does not discharge waste water and generate hazardous chemical waste residues in the production, a cold gas cooling dry quenching mode is adopted for cooling, water and dust are saved, waste gas directly enters a coal-fired boiler, and the method belongs to low-carbon production in the high-carbon industry.
Drawings
FIG. 1 is a schematic diagram of an implementation of the present invention;
Detailed Description
In the implementation shown in fig. 1, the novel zero-emission coal dry distillation device is characterized in that: the device comprises a clean carbon production process device, a gas circulating device, a tar treatment device, a waste heat flue gas utilization device and a water circulating device, wherein coke gas and tar liquid of the clean carbon production process device are processed into gas and tar in the gas circulating device and the tar treatment device, and circulating water of hot flue gas and the water circulating device of the waste heat flue gas utilization device enters the clean carbon production process device, the gas circulating device and the tar treatment device.
By applying the device, the produced clean carbon is in a complete shape manufactured according to the requirements of customers, no powder is generated, no pollution is discharged in the production process, meanwhile, the clean carbon adopts a mode of molding firstly and then performing dry distillation, the requirement of a traditional coal dry distillation system on the granularity of coal by performing dry distillation and then molding is lowered, the adaptability of dry distillation coal is increased, meanwhile, mesh capillary holes are fully distributed in the clean carbon body after molding and then performing dry distillation, the oxygen permeability is good, the strength is high, the clean carbon body is not afraid of rainwater soaking, and more sufficient combustion can be ensured in the use process.
The clean carbon production process device comprises an on-site stirrer, a temperature and humidity regulator, a hot-press forming machine, a material elevator and an integrated furnace, wherein the integrated furnace is provided with a material elevator feeding port and an air hole, and the integrated furnace is internally provided with four sections of preheating, pyrolysis, smoldering and cooling.
The coal gas circulating device comprises an oil-gas separator, a coal gas separator and an electrostatic oil trap, and coal gas of the coal gas circulating device enters the integrated furnace and the coal-fired power generation boiler through the air holes and the coal gas pipeline.
The waste heat flue gas utilization device is connected with the hot-press forming machine, the temperature and humidity regulator and the tar purifying machine through a flue gas pipeline, and flue gas which provides heat enters the coal-fired power generation boiler or the environment-friendly treatment device through the flue gas pipeline.
The water circulation device comprises an oil-gas separator, an on-site stirrer, a temperature and humidity regulator and a tar precipitation oil-water separator, wherein the temperature and humidity regulator is provided with an external interface for discharging excessive water.
The tar processing device comprises an oil-gas separator, a tar precipitation oil-water separator and a tar purifying machine.
By adopting the device and the clean carbon production process device, the low-order coal powder is added with the adhesive and then is stirred on site, then is regulated by the temperature and humidity regulator and then is hot-pressed and molded, and then is sent into the furnace by the material lifter for preheating, pyrolysis, smoldering and cooling, and finally clean carbon, coke gas and tar liquid are generated. The gas circulation device generates gas after the coke gas is subjected to oil-gas separation, gas separation and electrostatic oil trapping, part of the gas returns to the furnace through the air holes to provide heat for smoldering and cool clean coal, and the other part of the gas is used for a coal-fired power generation boiler or other combustion aspects. The waste heat flue gas utilization device fully utilizes the waste heat flue gas of the integrated furnace to the clean carbon production process device and the tar processing device, and finally the flue gas directly enters the furnace for combustion in a closed state and then enters the environmental protection device of the power plant to ensure the environmental protection and standard emission. The water circulation device enables water after oil-gas separation to enter the temperature and humidity regulator, and excess water is condensed and then returns to the oil-gas separation device in the gas circulation device to form water circulation, and no water is discharged outside in the whole circulation process. The tar processing device can effectively separate tar, tar liquid, coal gas and odor, and can recycle the tar liquid, the coal gas and the odor except the tar which can be sold to the outside.
In addition to the method disclosed in this embodiment, other schemes of forming before dry distillation, and burning of coal gas and waste gas into the furnace are also within the scope of the present application.
Claims (6)
1. The utility model provides a novel zero discharge coal dry distillation device which characterized in that: the device comprises a clean carbon production process device, a coal gas circulating device, a tar treatment device, a waste heat and smoke utilization device and a water circulating device, wherein the clean carbon production process device and the coal gas circulating device are mutually communicated through a coke gas pipeline and a coal gas pipeline, the clean carbon production process device and the tar treatment device are mutually communicated through the waste heat and smoke utilization device, and the clean carbon production process device, the tar treatment device and the coal gas circulating device are mutually communicated through the water circulating device.
2. The novel zero-emission coal dry distillation device as claimed in claim 1, wherein: the clean carbon production process device comprises an integrated furnace consisting of a field stirring section, a temperature and humidity regulator section, a hot-press molding section, a material lifting section, a preheating section, a pyrolysis section, a smoldering section and a cooling section.
3. The novel zero-emission coal dry distillation device as claimed in claim 1, wherein: the gas circulating device is formed by sequentially communicating an oil-gas separation section, a gas separation section and an electrostatic oil trapping section.
4. The novel zero-emission coal dry distillation device as claimed in claim 1, wherein: the waste heat and smoke utilization device is used for communicating the pyrolysis section, the hot-press forming section, the temperature and humidity adjusting section and the tar purifying section with each other through a waste heat utilization pipeline, and finally smoke enters the power generation boiler.
5. The novel zero-emission coal dry distillation device as claimed in claim 1, wherein: and the water circulating device is used for communicating the field stirring section, the temperature and humidity regulator section, the oil-gas separation section, the tar precipitation oil-water separation section and the tar liquid section with one another through pipelines.
6. The novel zero-emission coal dry distillation device as claimed in claim 1, wherein: the tar processing device is formed by sequentially communicating an oil-gas separation section, a tar precipitation oil-water separation section and a tar purification section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920222826.0U CN211079032U (en) | 2019-02-22 | 2019-02-22 | Novel zero-emission coal dry distillation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920222826.0U CN211079032U (en) | 2019-02-22 | 2019-02-22 | Novel zero-emission coal dry distillation device |
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| CN211079032U true CN211079032U (en) | 2020-07-24 |
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| CN201920222826.0U Active CN211079032U (en) | 2019-02-22 | 2019-02-22 | Novel zero-emission coal dry distillation device |
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