CN-121041853-B - Non-filtering type biological decomposition waste gas treatment device

CN121041853BCN 121041853 BCN121041853 BCN 121041853BCN-121041853-B

Abstract

The invention relates to the technical field of waste gas treatment, in particular to a non-filtering biological decomposition waste gas treatment device which comprises a decomposition tank, a packed bed, a vent pipe, a spray head, grid plates, a feed back tank, a motion assembly, a flow assembly and an atomization assembly, wherein a plurality of grid plates are arranged at the bottom end of the decomposition tank, the feed back tank is arranged at the lower end of the decomposition tank, compartments are arranged at two sides of the decomposition tank, the motion assembly is arranged in the compartments and connected with the grid plates, the atomization assembly is arranged at the lower end of the feed back tank, the feed back tank recovers liquid in the decomposition tank and carries out primary decomposition on waste gas through the atomization assembly, the decomposed waste gas is discharged after being circulated into the packed bed through the grid plates for secondary decomposition, the motion assembly is used for driving the grid plates to move to prevent the packed bed from hardening, and the flow assembly is used for guiding the liquid to flow into the feed back tank while preventing the surface of the grid plates from being blocked, so that the problem that the packed bed is easy to be blocked and hardened when the treatment amount is large is solved.

Inventors

LU CHENYANG
ZHANG ENZE
Xue Luyi
Ni Lingjuan
LI RUIFENG
LIU YUN

Assignees

苏州路易兴生物科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250831

Claims (7)

1. The utility model provides a non-filtration formula biological decomposition waste gas treatment device, includes decomposition tank (1), packed bed (2), breather pipe (3) and shower nozzle (4), its characterized in that still includes grid tray (5), feed back pond (6), motion subassembly (7), flow subassembly (8) and atomizing subassembly (9), packing bed (2) are installed in decomposition tank (1) mid portion, shower nozzle (4) are installed in decomposition tank (1) inboard upper end, and a plurality of grid tray (5) are installed in decomposition tank (1) bottom, feed back pond (6) are seted up in decomposition tank (1) lower extreme, compartment (11) have been seted up to decomposition tank (1) both sides, motion subassembly (7) are installed in compartment (11) and are connected with grid tray (5), atomizing subassembly (9) are installed in feed back pond (6) lower extreme, breather pipe (3) intercommunication atomizing subassembly (9) bottom, liquid in recovery pond (1) and through atomizing subassembly (9) carry out preliminary decomposition to waste gas and carry out the decomposition to the grid tray (5) and carry out the motion to be used for preventing in the motion of filling bed (2) after passing through grid tray (1) and circulating in the motion subassembly (7), the flow component (8) is used for guiding liquid to flow into the feed back tank (6) while preventing the surface of the grid plate (5) from being blocked; The inside of the grid plate (5) is provided with a cavity (51), the cavity (51) is communicated with the biological reaction tank (91), the outside of the grid plate (5) is provided with a plurality of air vents (52), the air vents (52) are long-strip-shaped and incline upwards from inside to outside, and the inner diameter of the air vents (52) is gradually reduced from inside to outside; The motion assembly (7) comprises a motor (71), a chain (72), a mounting pipe (73), gears (74) and a cam (75), wherein the motor (71) is mounted on the outer side of the decomposition tank (1), the mounting pipe (73) is mounted in a compartment (11), a plurality of gears (74) are mounted on the mounting pipe (73), oval matching holes (54) are formed in two sides of the grid plate (5), the cam (75) is mounted in the oval matching holes (54) and penetrates through the compartment (11) to be connected with the gears (74), and the chain (72) is connected with the motor (71) and the gears (74); the initial angle of each cam (75) is not uniform; when the vent (52) corresponds to the vent groove (811), gas is ejected from the vent groove (811) and moves into the decomposition tank (1), and when the vent (52) does not correspond to the vent groove (811), gas cannot flow out, and at this time, liquid can enter the bottom end of the decomposition tank (1) along the gap between the adjacent flow plates (81).
2. The non-filtering type biological decomposition waste gas treatment device according to claim 1, wherein the atomization assembly (9) comprises a biological reaction tank (91), a high-pressure cyclone nozzle (92) and a multi-layer spoiler (93), the biological reaction tank (91) is arranged at the lower end of the return tank (6), the high-pressure cyclone nozzle (92) is arranged at the upper end of the biological reaction tank (91) and is communicated with the return tank (6), and the multi-layer spoiler (93) is arranged in the biological reaction tank (91).
3. The non-filtering type biological decomposition waste gas treatment device according to claim 1, wherein the top end of the grid plate (5) is provided with a protrusion (53), and the top end of the protrusion (53) is elliptical.
4. The non-filtering type biological decomposition waste gas treatment device according to claim 1, wherein the flow assembly (8) comprises a flow plate (81) and fixing frames (82), a plurality of fixing frames (82) are arranged on two sides of the decomposition tank (1), the flow plate (81) is fixed on the fixing frames (82), the flow plate (81) is L-shaped, a plurality of ventilation grooves (811) corresponding to the ventilation openings (52) are formed in the surface of the flow plate (81), and the width of each ventilation groove (811) is slightly larger than that of each ventilation opening (52).
5. The non-filtering type biological decomposition waste gas treatment device according to claim 1, wherein a groove (12) is formed in the bottom end of the decomposition tank (1), the lowest point of the groove (12) is communicated with the feed back tank (6), and a filter screen (121) is arranged in the groove (12).
6. The non-filtering type biological decomposition waste gas treatment device according to claim 2, wherein a nutrient bin (61) and an electric control pump nozzle (62) are arranged on one side of the feed back tank (6), a detection module (911) is arranged at the joint of the bottom end of the biological reaction tank (91) and the ventilation pipe (3), and the detection module (911) is electrically connected with the electric control pump nozzle (62).
7. The non-filtering type biological decomposition waste gas treatment device according to claim 2, wherein a reflux pump (912) is arranged at the bottom end of the biological reaction tank (91), and the reflux pump (912) is connected with the spray head (4).

Description

Non-filtering type biological decomposition waste gas treatment device Technical Field The invention relates to the technical field of waste gas treatment, in particular to a non-filtering type biological decomposition waste gas treatment device. Background The energy-saving and environment-friendly waste gas treatment technology is also an environmental protection engineering construction link, and the biological waste gas treatment technology is an important one. The currently predominant biological waste gas treatment technologies include biofilters, biotrickling towers and biological scrubbers. These exhaust gas treatment technologies mainly treat pollutants in exhaust gas by using porous fillers as carriers for propagation and growth of microorganisms and degrading organic pollutants and malodorous substances contained in the exhaust gas by using metabolic activities of the microorganisms. The biological waste gas treatment technology is widely applied due to the advantages of relatively low cost, no secondary pollution and the like, but the biological waste gas treatment technology still has some problems in practical application, namely, a packed bed is easy to be blocked and hardened, especially when the amount of waste gas to be treated is large, the particles contained in the waste gas are increased, so that a large amount of particles are blocked in the pores of the packing, and meanwhile, the increase of the amount of waste gas is often accompanied by the increase of the amount of pollutants, the pollutants can provide excessive nutrient substances for microorganisms and stimulate excessive propagation of the microorganisms, so that the mass of the biomass in the packed bed is greatly increased in a short time, and the particles in the pores of the packing are mutually bonded with the excessive biomass due to the viscosity of the biomass, so that the pores among the packing are further blocked. And when the high gas flow is operated, the distribution requirement on the flow path of the gas is extremely high, the gas preferentially selects the passage with smaller resistance to pass, and other areas with larger resistance are easy to accumulate biomass and particulate matters due to insufficient gas flow, further cause the aggravation of blocking and hardening phenomena, further cause the remarkable increase of the pressure drop of the whole system, seriously reduce the biological purification efficiency, and even easily cause the shutdown of the system. In view of the above, the invention designs a non-filtering type biological decomposition waste gas treatment device for solving the problems that a packed bed is easy to be blocked and hardened when the amount of waste gas to be treated is large. Disclosure of Invention The invention designs a non-filtering type biological decomposition waste gas treatment device, which is characterized in that a liquid containing microorganisms in a decomposition tank is recovered through a recycling tank, waste gas is primarily decomposed through an atomization component, the pollutant content in the waste gas is reduced, the decomposed waste gas is circulated into a packed bed through a grid plate for secondary decomposition and then is discharged, excessive propagation of the microorganisms is prevented, meanwhile, the grid plate is driven by a motion component to move up and down to prevent the packed bed from hardening, the liquid containing the microorganisms is guided to flow into the recycling tank while the surface of the grid plate is prevented from being blocked by a flow component, and the problem that the packed bed is easy to be blocked and hardened when the waste gas treatment amount is large is solved. In order to achieve the technical purpose, the invention provides the following technical scheme: the utility model provides a non-filtration formula biological decomposition waste gas treatment device, includes decomposition pond, filler bed, breather pipe, shower nozzle, grid tray, feed back pond, motion subassembly, flow subassembly and atomization component, the filler bed is installed in decomposition pond mid portion, the shower nozzle is installed in decomposition pond inboard upper end, a plurality of the grid tray is installed in decomposition pond bottom, the feed back pond is offered at decomposition pond lower extreme, the compartment has been offered to decomposition pond both sides, motion subassembly is installed and is connected with the grid tray in the compartment, atomization component installs in the feed back pond lower extreme, breather pipe intercommunication atomization component bottom, the liquid in the decomposition pond is retrieved to waste gas through atomization component and is carried out preliminary decomposition, and waste gas is discharged after carrying out secondary decomposition in passing through the grid tray circulation to the filler bed after the decomposition, motion subassembly is used for driving the g