Biological deodorization device for malodorous gas in sewage station

Abstract

The utility model discloses a sewage station malodorous gas biological deodorization device which comprises an induced draft fan, an air inlet pipe connected with the outlet end of the induced draft fan and a biological deodorization device connected with the tail end of the air inlet pipe, a washing water tank is fixedly installed on one side of the outer portion of the biological deodorization device, and a washing pump is assembled at the top end of the washing water tank. And the outlet end of the washing pump is connected with a washing pipe. According to the device disclosed by the utility model, water is uniformly sprayed out through the washing pipe and the washing spray head and is in contact with malodorous gas which is uniformly distributed and passes through in the plastic filler, so that the malodorous gas can be subjected to pretreatment such as cooling, dust removal and absorption of a part of soluble gas; a nutrient solution can be injected into the mixer mounted on the water replenishing pipe through the dosing device, and is sprayed through the water distribution pipe, so that the growth and reproduction of microorganisms in the biological filtration area can be regulated and controlled, the activity of the microorganisms is maintained, and the change of the concentration and variety of organic matters in wastewater is adapted.

Description

Technical Field

[0001] The utility model relates to the technical field of biological deodorization, in particular to a biological deodorization device for malodorous gas in a sewage station. Background Art

[0002] Biological deodorization mainly utilizes the metabolism of microorganisms attached to the surface of the filler to purify the odorous substances in the malodorous gas, and has the advantages of low investment and operation cost, safety, good treatment effect, and no secondary pollution. However, during the operation of the biological deodorization device, it is still easy to cause biofilm accumulation and blockage, resulting in uneven treatment, and the malodorous gas composition is unstable, which affects the stability of the biological deodorization device. Therefore, a biological deodorization device for malodorous gas in sewage station is proposed. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted in this utility model is:

[0005] A biological deodorization device for malodorous gas in a sewage station comprises an induced draft fan, an air inlet pipe connected to the outlet end of the induced draft fan, and a biological deodorization device connected to the end of the air inlet pipe, a washing water tank is fixedly installed on one side of the outside of the biological deodorization device, a washing pump is installed on the top of the washing water tank, a washing pipe is connected to the outlet end of the washing pump, a washing nozzle is arranged at the bottom of the washing pipe, a washing area is provided inside the biological deodorization device, a plastic filler is installed in the washing area, a partition is fixedly installed in the middle of the inner cavity of the biological deodorization device, an air outlet is provided on the partition, and the biological deodorization device is fixedly installed on the inner cavity of the biological deodorization device. A biological filtration area is provided on the other side of the partition where the deodorizing device is located, a biological filler layer is fixedly installed inside the biological filtration area, a flushing pipe is fixedly installed between the biological filler layers, a water replenishment pipe is connected to the end of the flushing pipe, a water replenishment nozzle is fixedly installed at the bottom of the water replenishment pipe, and a water replenishment pump is connected to the bottom of the water replenishment pipe, a dosing device is connected to the middle of the water replenishment pipe, a water replenishment tank is provided at the bottom of the water replenishment pump, an inclined plate is provided at the bottom of the biological filtration area, an exhaust pipe is fixedly sleeved on the top of the biological deodorizing device, and a demisting area is provided on the top of the biological filtration area.

[0006] Preferably, the washing water tank and the water replenishing tank are respectively arranged on both sides of the outside of the biological deodorization device, and water replenishing float valves are provided on the washing water tank and the water replenishing tank.

[0007] Preferably, a flushing electric valve is provided at the connection between the flushing pipe and the water supply pipe, and a pressure difference sensor is installed at the bottom of the outer end of the flushing pipe.

[0008] Preferably, a slag discharge valve is fixedly installed at a position on one side of the inclined plate at the bottom of the biological deodorization device.

[0009] Preferably, a mixer is provided at the junction of the dosing device and the water supply pipe.

[0010] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0011] In the utility model, water is sprayed out evenly through the washing pipe and the washing nozzle, and contacts with the malodorous gas uniformly distributed through the plastic filler, so that the malodorous gas can be pre-treated by cooling, dust removal, absorption of part of soluble gas, etc., and when the waste gas composition is unstable or the long-term operation time is unstable, nutrient solution can be injected into the mixer installed on the water supply pipe through the dosing device, and sprayed through the water distribution pipe, so as to regulate the growth and reproduction of microorganisms in the biological filtration area, maintain the activity of microorganisms, and adapt to the changes in the concentration and type of organic matter in the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0013] Figure 2 A schematic diagram of a flushing pipe according to an embodiment of the utility model;

[0014] Figure 3 This is a schematic cross-sectional view of a flushing pipe according to an embodiment of the utility model.

[0015] Reference numerals:

[0016] 1. induced draft fan; 2. air inlet pipe; 3. biological deodorization device; 4. washing area; 5. washing pump; 6. washing water tank; 7. washing pipe; 8. washing nozzle; 9. plastic filler; 10. partition; 11. air inlet; 12. biological filtration area; 13. water supply pump; 14. water supply tank; 15. water supply pipe; 16. water supply nozzle; 17. biological filler layer; 18. demisting area; 19. exhaust pipe; 20. flushing pipe; 21. differential pressure sensor; 22. flushing electric valve; 23. inclined plate; 24. slag discharge valve; 25. water supply float valve; 26. dosing device; 27. mixer. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] A biological deodorization device for malodorous gases in a sewage station provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0019] Example:

[0020] Combination Figure 1-3 As shown, the utility model provides a biological deodorization device for malodorous gas in a sewage station, comprising an induced draft fan 1, an air inlet pipe 2 connected to the outlet end of the induced draft fan 1, and a biological deodorization device 3 connected to the end of the air inlet pipe 2. A washing water tank 6 is fixedly installed on one side of the outside of the biological deodorization device 3, a washing pump 5 is installed on the top of the washing water tank 6, a washing pipe 7 is connected to the outlet end of the washing pump 5, and a washing nozzle 8 is arranged at the bottom of the washing pipe 7. A washing area 4 is provided inside the biological deodorization device 3, and a plastic filler 9 is installed in the washing area 4. A partition 10 is fixedly installed in the middle of the inner cavity of the biological deodorization device 3, and an air outlet 11 is provided on the partition 10. The biological deodorization device 3 is provided with a biological filtration area 12 on the other side of the partition 10, and a biological filler layer 17 is fixedly installed inside the biological filtration area 12. A flushing pipe 20 is fixedly installed between the biological filler layers 17, and the end of the flushing pipe 20 is connected to a filling A water pipe 15, a water replenishment nozzle 16 is fixedly installed at the bottom of the water replenishment pipe 15, and a water replenishment pump 13 is connected to the bottom end of the water replenishment pipe 15, a dosing device 26 is connected to the middle part of the water replenishment pipe 15, a flushing electric valve 22 is arranged at the connection between the flushing pipe 20 and the water replenishment pipe 15, and a pressure difference sensor 21 is installed at the bottom of the outer end of the flushing pipe 20, a mixer 27 is arranged at the intersection of the dosing device 26 and the water replenishment pipe 15, a water replenishment tank 14 is arranged at the bottom of the water replenishment pump 13, the washing water tank 6 and the water replenishment tank 14 are respectively arranged on both sides of the outside of the biological deodorization device 3, and a water replenishment float valve 25 is arranged on the washing water tank 6 and the water replenishment tank 14, an inclined plate 23 is arranged at the bottom of the biological filtration area 12, a slag discharge valve 24 is fixedly installed at the position on one side of the inclined plate 23 at the bottom of the biological deodorization device 3, an exhaust pipe 19 is fixedly sleeved on the top of the biological deodorization device 3, and a demisting area 18 is arranged on the top of the biological filtration area 12.

[0021] Specifically, by connecting the flushing pipe 20 with the water supply pipe 15 and extending the flushing pipe 20 into the biological filler layer 17, the flushing electric valve 22 can be controlled by the pressure difference of the pressure difference sensor 21 installed above and below the biological filtration area 12 to flush the biological filler layer 17 to prevent blockage. The biofilm that falls off after flushing is discharged from the slag discharge valve 24 after being precipitated through the inclined plate 23 at the bottom of the biological filtration area 12. The washing water tank 6 and the water supply tank 14 are both equipped with a water supply float valve 25 to replenish the water tank and maintain water level balance.

[0022] The working principle and use process of the utility model are as follows: first, the induced draft fan 1 brings the malodorous gas into the washing area 4 of the biological deodorizing device 3 along the air inlet pipe 2, and in the washing area 4, the washing water in the washing water tank 6 is sprayed out evenly through the washing pipe 7 and the washing nozzle 8 by the washing pump 5, and the washing water is contacted with the evenly distributed malodorous gas in the plastic filler 9 to pre-treat the malodorous gas, and the pre-treated malodorous gas enters the biological filtration area 12 through the air port 11 reserved by the partition 10, and in the biological filtration area 12, the water replenishment pump 13 evenly sprays the water in the water replenishment tank 14 through the water replenishment pipe 15 and the water replenishment nozzle 16 to replenish water to the microorganisms attached to the biological filler layer 17 that purify the malodorous gas, and maintain appropriate humidity, and finally, the humidified waste gas after biological filtration passes through the demisting area 18 and then along the exhaust pipe 19 to meet the discharge standards.

[0023] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A biological deodorization device for malodorous gas in a sewage station, comprising an induced draft fan (1), an air inlet pipe (2) connected to the outlet end of the induced draft fan (1), and a biological deodorization device (3) connected to the end of the air inlet pipe (2), characterized in that: A washing water tank (6) is fixedly installed on one side of the exterior of the biological deodorization device (3), a washing pump (5) is installed on the top of the washing water tank (6), the outlet end of the washing pump (5) is connected to a washing pipe (7), a washing nozzle (8) is arranged at the bottom of the washing pipe (7), a washing area (4) is provided inside the biological deodorization device (3), a plastic filler (9) is installed inside the washing area (4), a partition (10) is fixedly installed in the middle of the inner cavity of the biological deodorization device (3), an air outlet (11) is provided on the partition (10), a biological filtration area (12) is provided on the other side of the biological deodorization device (3) located on the other side of the partition (10), and the interior of the biological filtration area (12) is provided with a plastic filler (9). A biological filler layer (17) is fixedly installed, a flushing pipe (20) is fixedly installed between the biological filler layers (17), the end of the flushing pipe (20) is connected to a water replenishment pipe (15), a water replenishment nozzle (16) is fixedly installed at the bottom of the water replenishment pipe (15), and a water replenishment pump (13) is connected to the bottom of the water replenishment pipe (15), a dosing device (26) is connected to the middle of the water replenishment pipe (15), a water replenishment tank (14) is arranged at the bottom of the water replenishment pump (13), an inclined plate (23) is arranged at the bottom of the biological filtration area (12), an exhaust pipe (19) is fixedly sleeved on the top of the biological deodorization device (3), and a demisting area (18) is arranged at the top of the biological filtration area (12).

2. A biological deodorization device for malodorous gases in a sewage station according to claim 1, characterized in that: The washing water tank (6) and the water replenishing tank (14) are respectively arranged on two sides of the outside of the biological deodorization device (3), and a water replenishing float valve (25) is arranged on both the washing water tank (6) and the water replenishing tank (14).

3. A biological deodorization device for malodorous gas from a sewage station according to claim 1, characterized in that: A flushing electric valve (22) is provided at the connection between the flushing pipe (20) and the water supply pipe (15), and a pressure difference sensor (21) is installed at the bottom of the outer end of the flushing pipe (20).

4. A biological deodorization device for malodorous gas from a sewage station according to claim 1, characterized in that: A slag discharge valve (24) is fixedly installed at a position on one side of the inclined plate (23) at the bottom of the biological deodorization device (3).

5. The biological deodorization device for malodorous gas in a sewage station according to claim 1 is characterized in that: A mixer (27) is provided at the junction of the dosing device (26) and the water supply pipe (15).

Images