CN218853968U - Comprehensive utilization device for methane produced in traditional Chinese medicine wastewater treatment process - Google Patents
Comprehensive utilization device for methane produced in traditional Chinese medicine wastewater treatment process Download PDFInfo
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- CN218853968U CN218853968U CN202222813060.8U CN202222813060U CN218853968U CN 218853968 U CN218853968 U CN 218853968U CN 202222813060 U CN202222813060 U CN 202222813060U CN 218853968 U CN218853968 U CN 218853968U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The utility model discloses a comprehensive utilization device of methane produced in the traditional Chinese medicine wastewater treatment process, which comprises a methane gas cabinet, a booster fan, an igniter, a steam generator, a desulfurization and denitrification tower and a torch; the gas outlet of the biogas gas holder is connected with the inlet of a booster fan, and the outlet of the booster fan is respectively connected to the biogas inlets of an igniter and a torch through pipelines; the igniter is arranged at the front end of the steam generator, a methane combustion device and a waste heat recovery system are arranged in the steam generator, and a tail gas outlet of the steam generator is connected with a gas inlet of the desulfurization and denitrification tower. The device improves the utilization rate of condensed water in the traditional Chinese medicine extraction process, saves water for a boiler, effectively solves the problem of methane emission, utilizes methane as fuel, heats tap water and collected condensed water, generates a large amount of steam, and reduces the waste of energy.
Description
Technical Field
The utility model relates to a traditional chinese medicine production field, concretely relates to comprehensive utilization device of marsh gas produced among traditional chinese medicine waste water treatment process.
Background
Extraction of Chinese herbs is an important step in the production of Chinese herbs, and a large amount of waste water is generated in the process. In addition, about 30 tons of condensed water generated by extraction can directly enter the urban rainwater pipe network through a factory rainwater pipeline, which is a resource waste.
A large amount of waste water generated in the traditional Chinese medicine extraction process is merged into a sewage pipeline to enter a factory sewage treatment system, and in the treatment system, the IC anaerobic reactor is a set of core treatment device and can efficiently treat the waste water. In the IC anaerobic reaction process, organic matters are decomposed and converted into methane, carbon dioxide, water, hydrogen sulfide and the like, and the organic matters are used as main components of the methane and are ideal fuels.
Disclosure of Invention
The invention aims to provide a comprehensive utilization device for methane produced in the traditional Chinese medicine wastewater treatment process on the basis of the prior art. The device can make full use of a large amount of marsh gas generated in the wastewater treatment process and reuse the condensed water, and improves the reuse rate of resources in the traditional Chinese medicine extraction process.
The technical scheme of the utility model as follows:
a comprehensive utilization device for biogas generated in the traditional Chinese medicine wastewater treatment process comprises a biogas gas cabinet, a booster fan, an igniter, a steam generator, a desulfurization and denitrification tower and a torch; the gas outlet of the biogas gas holder is connected with the inlet of the booster fan, and the outlet of the booster fan is respectively connected to the igniter and the biogas inlet of the torch through pipelines; the igniter is arranged at the front end of the steam generator, a methane combustion device, a steam generation device and a waste heat recovery system are arranged in the steam generator, and a tail gas outlet of the steam generator is connected with a gas inlet of the desulfurization and denitrification tower.
In a preferred scheme, a gas inlet of the biogas gas holder is connected with a biogas outlet of the sewage treatment system through a pipeline; a water separator is arranged on a pipeline between the gas inlet of the methane gas holder and the sewage treatment system.
In a preferable scheme, the comprehensive utilization device further comprises a blower, and a gas outlet of the blower is communicated with one gas inlet of the igniter through a pipeline.
In a preferred scheme, the comprehensive utilization device further comprises a tap water tank and a dosing tank, and outlets of the tap water tank and the dosing tank are respectively connected with the steam generator through pipelines. Specifically, the outlets of the tap water tank and the dosing tank are respectively connected with the steam generating device through pipelines.
In a preferred scheme, a condensate water inlet is arranged at the upper end of a steam generator of the comprehensive utilization device and is connected with a condensate water recovery device through a pipeline.
In a preferable scheme, a urea water solution inlet is arranged at the middle lower part of the desulfurization and denitrification tower, and the urea water solution inlet is connected with a urea tank through a pipeline.
In a preferred scheme, a gas-water separator for preventing the methane gas from leaking is additionally arranged outside the methane gas cabinet.
In a preferred scheme, two sides of the methane gas cabinet are made of polyester materials, and the methane gas cabinet is connected with the booster fan through a stainless steel pipeline.
In a preferable scheme, the tap water tank, the dosing tank, the urea tank and the torch main body are all made of stainless steel tanks.
The condensate water recovery device comprises a stainless steel pipeline and a high-temperature resistant circulating pump.
The comprehensive utilization device for the methane produced in the traditional Chinese medicine wastewater treatment process improves the utilization rate of condensed water in the traditional Chinese medicine extraction process and saves boiler water; methane and hydrogen sulfide gas generated in the sewage treatment process are effectively recycled, the problem of generated methane emission is solved, and environmental protection compliance is ensured. Meanwhile, biogas is used as fuel to heat tap water and collected condensed water, a large amount of steam is generated to be supplied to a plant area, and energy waste is reduced. By taking the example that about 1000 tons of dregs are generated per month in the process of extracting the traditional Chinese medicine as an example, the device can generate 300 tons of steam per month, and save more than 30 tons of tap water.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure, 1-biogas gas holder; 2-a booster fan; 3-a blower fan; 4-an igniter; 5-a steam generator; 6-a tap water tank; 7-dosing box; 8-a desulfurization and denitrification tower; 9-a urea tank; 10-torch; 11-a condensate recovery device; 12-a sewage treatment system; 13-IC anaerobic reactor; 14-gas-water separator; 15-a methane combustion device, 16-a steam generation device, 17-a waste heat recovery system and 18-a steam main pipe network.
Detailed Description
The following embodiments and drawings are used to further explain the technical scope of the present invention, but the present invention is not limited to the following embodiments.
As shown in fig. 1, the device mainly comprises a biogas gas holder 1, a booster fan 2, a blower fan 3, an igniter 4, a steam generator 5, a tap water tank 6, a dosing tank 7, a desulfurization and denitrification tower 8, a urea tank 9 and a torch 10. Biogas generated in the treatment 12 process of the sewage treatment system for treating the traditional Chinese medicine wastewater is connected to a biogas gas holder 1 through a pipeline led out from an IC tower, and the biogas gas holder 1 comprises a water seal closed facility to prevent biogas gas from leaking. Both sides of the methane gas cabinet device are made of polyester materials.
The sewage treatment system treatment 12 is provided with an IC anaerobic reactor inside. The device can combine 3 methane discharge pipelines at the top of the IC anaerobic reactor 13 tower and adopts a stainless steel pipeline to connect the methane gas holder 1. In one scheme, a gas-water separator 14 can be additionally arranged on a pipeline between a gas inlet of the methane gas cabinet 1 and the sewage treatment system 12, collected methane enters the methane gas cabinet 1 after being treated by the gas-water separator, a double-membrane gas cabinet with the capacity of about 350m for storage can be adopted in one specific scheme, and a reinforced concrete foundation is laid at the mounting position of the gas cabinet according to requirements.
The gas outlet of the methane gas holder 1 is connected with the inlet of the booster fan 2 through a stainless steel pipeline. The outlet of the booster fan 2 is respectively connected to the igniter 4 and the biogas inlet of the torch 10 through pipelines. In the normal treatment process, the marsh gas is introduced into the igniter 4, and when the marsh gas generation amount is larger than the incineration amount (120 m) 3 And h), transferring and collecting the redundant biogas to a torch 10 through a booster fan 2, and directly burning and discharging the biogas.
The igniter 4 is arranged at the front end of the steam generator 5, and a biogas combustion device 15, a steam generation device 16 and a waste heat recovery system 17 are arranged in the steam generator 5. The steam line of the steam generating device 16 can be connected directly to the main steam pipe network 18 of the plant or workshop to be supplied to the corresponding plant or workshop. The steam generating pipeline of the steam generating device 16 is arranged in the middle section of the interior of the steam generator 5, and the waste heat recovery system 17 is arranged at the tail gas outlet of the steam generator 5. The gas outlet of the blower 3 is connected to a gas inlet of the igniter 4 via a pipe. Therefore, the biogas collected by the biogas gas holder 1 is introduced into the igniter 4 and the steam generator 5 through the booster fan 2, and simultaneously, a large amount of air is sucked through the blower 3 to increase the oxygen content so as to fully combust the biogas or reduce the internal temperature of the steam generator.
The outlets of the tap water tank 6 and the dosing tank 7 are respectively connected with the steam generator 5 through stainless steel pipelines. The steam generator 5 is provided with a condensate inlet which is connected by means of a line to a condensate recovery device 11 of a workshop or factory. Thus, phosphate in the dosing tank 7 and tap water in the tap water tank 6 can be fed into the steam generator through automatic control, so that the hardness of the water body is reduced. The tap water enters the steam generator 5 to generate steam, and the part of the generated steam is supplied to a required workshop or factory for use. The condensed water produced in the workshop can be collected by the condensed water recovery device 11 and then sent to the steam generator 5 to replace a part of tap water, and the mode of supplementing water by using the condensed water extracted by the traditional Chinese medicine can save the using amount of part of tap water and softener and save a large amount of cost of tap water. The condensate recovery device 11 comprises a stainless steel pipeline and a high-temperature resistant circulating pump.
The steam lines of the steam generating means 16 in the steam generator 5 can be connected directly to the main steam pipe network 18 of the plant or workshop for use in the desired plant or workshop. The heat generated by the biogas combustion device converts tap water and condensed water into steam which can be returned to the factory or workshop for use. The steam generator 5 is also internally provided with a waste heat recovery system, and heat generated by burning water is recovered through the waste heat recovery system, so that the methane consumed by heating cold water is reduced, and the steam generation efficiency is improved.
The heat recovery system 17 provided in the steam generator 5 may be a two-stage heat recovery boiler. The tail gas from the 15 exports of marsh gas burner gets into exhaust-heat boiler (one section) at first, and the tail gas after the recovery heat gets into SCR reactor (denitration), and the tail gas after the denitration gets into exhaust-heat boiler (second section), and the tail gas temperature that the recovery heat was controlled exhaust-heat boiler (second section) simultaneously is higher than dew point temperature, gets into SOx/NOx control tower 8.
And a tail gas outlet of the steam generator 5 is connected with a gas inlet of the desulfurization and denitrification tower 8. The tail gas generated by burning the marsh gas is purified by a desulfurization and denitrification tower 8, and the equipment comprises V 2 O 5 The catalyst can be used for denitration of tail gas; meanwhile, urea aqueous solution is added into a urea tank 9 connected with a urea aqueous solution inlet at the middle lower part of the desulfurization and denitrification tower, so that sulfur-containing components in the tail gas are removed. Urine collection deviceThe outside material of plain jar is the stainless steel, and the main part material of torch is the stainless steel. After tail gas lets in and gets into SOx/NOx control tower 8, advance into the desulfurizing tower hypomere (absorption section), tail gas carries out adiabatic evaporation cooling in the absorption section, and sulfur dioxide and dust etc. in the tail gas adsorb through the washing simultaneously, reach the technology and discharge the requirement, and through the demister of the clean tail gas entering upper segment after the absorption, through getting rid of liquid drops such as smuggleing secretly liquid foam, tail gas after the purification finally by the straight line chimney discharge to reach standard of top of the tower elevation 20 meters. And discharging the desulfurized external discharged liquid into the existing sewage treatment system of the plant area, and discharging the desulfurized external discharged liquid after reaching the standard.
One use process of the comprehensive utilization device for the methane generated in the traditional Chinese medicine wastewater treatment process is as follows:
the marsh gas that sewage treatment system 12 water treatment in-process produced can be collected in marsh gas holder 1, and the marsh gas boiler operation, the marsh gas of collecting passes through booster fan 2 and gets into some firearm 4, and air-blower 3 constantly inhales air and gets into some firearm 4, simultaneously through with dosing tank 7 (contain phosphate) mix the condensate water that condensate water recovery unit 11 collected in the traditional chinese medicine extraction process and the running water in running water tank 6, let in steam generator 5 after softening water, the steam of production through steam trunk line 18 supply workshop use of lighting a fire this moment. The tail gas that steam generator 5 produced gets into SOx/NOx control tower 8, discharges after SOx/NOx control handles up to standard. In certain cases, biogas may also be discharged by direct combustion through flare 10. The whole device, especially the wastewater generated by the desulfurization and denitrification tower 8 flows into a factory sewage treatment system 12.
Other parts which are not described in the present invention are the same as those in the prior art.
Claims (9)
1. A comprehensive utilization device for biogas generated in the traditional Chinese medicine wastewater treatment process is characterized by comprising a biogas gas cabinet (1), a booster fan (2), an igniter (4), a steam generator (5), a desulfurization and denitrification tower (8) and a torch (10); the gas outlet of the biogas gas holder (1) is connected with the inlet of the booster fan (2), and the outlet of the booster fan (2) is respectively connected to the biogas inlets of the igniter (4) and the torch (10) through pipelines; the igniter (4) is arranged at the front end of the steam generator (5), a biogas combustion device (15), a steam generation device (16) and a waste heat recovery system (17) are arranged in the steam generator (5), and a tail gas outlet of the steam generator (5) is connected with a gas inlet of the desulfurization and denitrification tower (8).
2. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized in that a gas inlet of the biogas gas holder (1) is connected with a biogas outlet of a sewage treatment system (12) through a pipeline; a water separator (14) is arranged on a pipeline between the gas inlet of the methane gas holder (1) and the sewage treatment system (12).
3. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized by comprising an air blower (3), wherein a gas outlet of the air blower (3) is communicated with a gas inlet of the igniter (4) through a pipeline.
4. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized by comprising a tap water tank (6) and a dosing tank (7), wherein the outlets of the tap water tank (6) and the dosing tank (7) are respectively connected with the steam generator (5) through pipelines.
5. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized in that the steam generator (5) is provided with a condensed water inlet, and the condensed water inlet is connected with a condensed water recovery device (11) through a pipeline.
6. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized in that a urea aqueous solution inlet is arranged at the middle lower part of the desulfurization and denitrification tower (8), and the urea aqueous solution inlet is connected with a urea tank (9) through a pipeline.
7. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 1, characterized in that two sides of the biogas gas holder (1) are made of polyester material, and the biogas gas holder (1) and the booster fan (2) are connected through a stainless steel pipeline.
8. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 4, characterized in that the tap water tank (6) and the dosing tank (7) are both made of stainless steel boxes.
9. The comprehensive utilization device of biogas generated in the traditional Chinese medicine wastewater treatment process according to claim 5, characterized in that the condensate recovery device (11) comprises a stainless steel pipeline and a high temperature resistant circulating pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222813060.8U CN218853968U (en) | 2022-10-25 | 2022-10-25 | Comprehensive utilization device for methane produced in traditional Chinese medicine wastewater treatment process |
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| CN202222813060.8U CN218853968U (en) | 2022-10-25 | 2022-10-25 | Comprehensive utilization device for methane produced in traditional Chinese medicine wastewater treatment process |
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| CN202222813060.8U Active CN218853968U (en) | 2022-10-25 | 2022-10-25 | Comprehensive utilization device for methane produced in traditional Chinese medicine wastewater treatment process |
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