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CN-224226814-U - Papermaking wastewater treatment biogas utilization device

CN224226814UCN 224226814 UCN224226814 UCN 224226814UCN-224226814-U

Abstract

The utility model discloses a papermaking wastewater treatment biogas utilization device, which comprises a wastewater anaerobic treatment unit, wherein the wastewater anaerobic treatment unit is communicated with a gas-liquid separation tank, the output end of the gas-liquid separation tank is communicated with a water seal foam removing tank, the water seal foam removing tank is communicated with a biogas storage cabinet, the biogas storage cabinet is provided with a first bypass pipeline, the biogas storage cabinet is communicated with a water seal tank through the bypass pipeline, one side of the biogas storage cabinet is provided with a booster fan, the input end of the booster fan is communicated with the biogas storage cabinet, the output end of the booster fan is communicated with a desulfurization system, and the desulfurization system is communicated with a steam boiler. According to the utility model, the torch body is arranged in front of the booster fan and is used for emergency combustion treatment under the working conditions of follow-up single body fault maintenance or unstable gas quantity and the like, so that biogas can be effectively treated, the biogas is fully utilized, and the biogas utilization rate is increased.

Inventors

  • Shao Benben
  • HUANG WEIRONG
  • WANG YANAN
  • ZHU QIANJIANG
  • Lei shuangjian

Assignees

  • 杭州山屿源环保科技有限公司

Dates

Publication Date
20260512
Application Date
20250605

Claims (6)

  1. 1. The utility model provides a papermaking wastewater treatment marsh gas utilizes device, includes waste water anaerobic treatment unit (1), a serial communication port, waste water anaerobic treatment unit (1) and gas-liquid separation jar (2) communicate each other, the output intercommunication of gas-liquid separation jar (2) is provided with water seal defoaming jar (3), water seal defoaming jar (3) intercommunication is provided with marsh gas storage holder (4), marsh gas storage holder (4) set up first bypass pipeline (501), marsh gas storage holder (4) are provided with water seal jar (5) through bypass pipeline intercommunication, marsh gas storage holder (4) one side is provided with booster fan (6), the input and marsh gas storage holder (4) of booster fan (6) are linked together, the output and the desulfurization system (7) of booster fan (6) are linked together, desulfurization system (7) are linked together with steam boiler (8), be provided with second bypass pipeline (901) between desulfurization system (7) and steam boiler (8), second bypass pipeline (901) intercommunication is provided with from power plant (9), marsh gas storage holder (4) are provided with booster fan (1001) and third bypass fan (1001) are provided with between the bypass pipeline (6).
  2. 2. The papermaking wastewater treatment biogas utilization device according to claim 1, wherein the torch assembly comprises a torch body (10) and a secondary air inlet assembly, an igniter body (17) is fixedly arranged in the torch body (10), a biogas pipe (13) is arranged on one side of the torch body (10) in a communicated mode, and the biogas pipe (13) is communicated with a third bypass pipeline (1001).
  3. 3. The papermaking wastewater treatment biogas utilization device according to claim 2, wherein the secondary air inlet assembly comprises a plurality of second through grooves (20) formed in the torch body (10), an annular bin (16) fixedly sleeved on the torch body (10) and an annular piece (18) fixedly mounted on the inner wall of the torch body (10), first through grooves (19) mutually corresponding to the plurality of second through grooves (20) are formed in the annular piece (18), and the interior of the annular bin (16) is communicated with the interior of the torch body (10) through the first through grooves (19) and the second through grooves (20).
  4. 4. The papermaking wastewater treatment biogas utilization device according to claim 2, wherein the secondary air inlet assembly further comprises a blower (14), a secondary air inlet pipe (15) is arranged at the output end of the blower (14), and the secondary air inlet pipe (15) is communicated with the bottom end of the annular bin (16).
  5. 5. A papermaking wastewater treatment biogas utilization device according to claim 3, characterized in that the inner wall of the annular member (18) is provided with a plurality of air deflectors (21), a plurality of the air deflectors (21) are sequentially and respectively arranged at a plurality of second through grooves (20), the air deflectors (21) comprise a bottom plate (2101) and a side plate (2102), a plurality of the bottom plate (2101) are obliquely arranged upwards, and a plurality of the side plates (2102) are obliquely arranged along the anticlockwise direction.
  6. 6. The papermaking wastewater treatment biogas utilization device according to claim 2, wherein a plurality of supporting pieces (12) are arranged at the top end of the torch body (10), and a rain shield (11) is fixedly connected to the top ends of the supporting pieces (12).

Description

Papermaking wastewater treatment biogas utilization device Technical Field The utility model relates to the technical field of biogas treatment, in particular to a papermaking wastewater treatment biogas utilization device. Background In the anaerobic treatment process of papermaking wastewater, the efficient utilization of methane faces multiple technical challenges that corrosive components such as hydrogen sulfide and the like in the methane and carbon dioxide have over high proportion, so that the heat value is low and equipment is easy to corrode, a treatment system is influenced by water quality fluctuation, the gas yield is unstable and is difficult to match with continuous utilization requirements, and foam carried by the methane is easy to cause pipeline blockage or equipment failure during abnormal operation. The traditional treatment mode adopts a torch burning method, and although the marsh gas can be treated in an emergency way, the energy waste and the secondary pollution of the sulfur oxide are caused. Some enterprises try to use biogas for power generation of self-contained power plants, but the biogas is limited by the matching conditions of the power plants, and has limited applicability. The prior art has not effectively solved the problems of biogas quality improvement, stable supply, low-cost purification and the like, and development of a resource utilization scheme with stronger adaptability is needed. Patent document CN211972287U discloses a landfill leachate equalizing basin marsh gas processing system, including inlet channel, equalizing basin closing device, marsh gas collection device, air exhauster, and water and gas separator torch burner, the equalizing basin closing device includes equalizing basin and geomembrane, and the geomembrane covers on the equalizing basin, and the geomembrane extends to the subaerial of equalizing basin periphery and fixed, inlet channel and equalizing basin intercommunication, marsh gas collection device include the marsh gas collecting pipe, and the inlet end and the equalizing basin intercommunication of marsh gas collecting pipe, and the outlet end links to each other with the entry of air exhauster, and the export and the water and gas separator of air exhauster are connected, and the water and gas separator is connected with torch burner, and torch burner is used for burning the gas that the water and gas separator separated. According to the utility model, the biogas is collected through the biogas collecting pipe, meanwhile, the exhaust fan is added to pump the biogas generated by the landfill leachate, and meanwhile, the biogas is treated in a manner of burning by the torch burning device, so that the odor problem in the regulating tank is solved. In the prior art of the above patent, the flare is adopted to directly burn the biogas, the biogas is not fully utilized, the economic value and the industrial value of the biogas are not fully developed, and secondly, the flare is directly adopted to directly suck the biogas by a blower, however, the external air is difficult to enter the interior for secondary combustion enhancement, if the vent hole is arranged, the biogas also has leakage risk, and a biogas recycling device capable of solving the problems is needed. Disclosure of utility model The utility model aims to provide a papermaking wastewater treatment biogas utilization device which aims to solve the defects in the prior art. In order to achieve the purpose, the papermaking wastewater treatment biogas utilization device comprises a wastewater anaerobic treatment unit, wherein the wastewater anaerobic treatment unit is communicated with a gas-liquid separation tank, the output end of the gas-liquid separation tank is communicated with a water seal foam removing tank, the water seal foam removing tank is communicated with a biogas storage cabinet, the biogas storage cabinet is provided with a first bypass pipeline, the biogas storage cabinet is communicated with a water seal tank through a bypass pipeline, one side of the biogas storage cabinet is provided with a booster fan, the input end of the booster fan is communicated with the biogas storage cabinet, the output end of the booster fan is communicated with a desulfurization system, the desulfurization system is communicated with a steam boiler, a second bypass pipeline is arranged between the desulfurization system and the steam boiler, the second bypass pipeline is communicated with a self-contained power plant, a third bypass pipeline is arranged between the biogas storage cabinet and the booster fan, and the third bypass pipeline is communicated with a torch assembly. As further description of the technical scheme, the torch assembly comprises a torch body and a secondary air inlet assembly, wherein an igniter body is fixedly arranged in the torch body, one side of the torch body is communicated with and provided with a biogas pipe, and the biogas pipe is communicated with a thi