Waste gas microorganism deodorization device

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a waste gas microorganism deodorization device which comprises a box body and an atomizer, the atomizer is arranged on one side of the outer wall of the box body, a fixing plate is arranged on the inner wall of one side of the box body, a rotating shaft is arranged on the inner wall of the other side of the box body, and a rotating frame is arranged on the outer side of the rotating shaft. A rotating frame is arranged on one side of the box body, a fixing plate is arranged on the other side of the rotating frame, U-shaped clamping grooves are formed in one side of the rotating frame and one side of the fixing plate, filler frames are arranged in the U-shaped clamping grooves, biological membranes are arranged on the two sides of each filler frame, and elastic rubber strips are arranged between the filler frames on the two sides of the inner wall of the box body. And when the pressure of the waste gas is small, a gap is reserved between the filler frames on the two sides, the pressure loss of the waste gas is reduced through the gap, the purification effect of the waste gas is guaranteed, and meanwhile the purification efficiency of the waste gas is improved when the pressure of the waste gas is low.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a waste gas microbial deodorization device. Background Art

[0002] Waste gas microbial deodorization technology is an environmentally friendly method that uses specific microorganisms to degrade odorous substances in organic waste gas and convert them into harmless substances.

[0003] The existing Chinese patent (CN202237790U) discloses a waste gas biological deodorization purifier, including a box body, an air inlet is formed on the left side of the box body, an air outlet is formed on the right side of the box body, and several longitudinal fillers are arranged in the box body. The fillers are made of porous ester material, and the fillers are spaced from left to right. The four sides of each filler extend outward to the inner wall of the box body. Each filler is attached with a biofilm. Several nozzles facing the filler are respectively arranged on the left side of each filler. A water pipe connecting and conducting all the nozzles is provided in the box body, and several water outlets are formed at the bottom of the box body. A water reservoir connected to each water outlet is provided below the box body. A water pump that sends water in the water reservoir to each nozzle is also installed on the box body. The water reservoir is provided with a flow meter, and a discharge port for discharging the products of microbial decomposition is formed at the bottom of the water reservoir.

[0004] In the above technical solution, biofilm fillers arranged in rows are used to deodorize and purify the waste gas. However, during use, the pressure of the waste gas is often unstable. When the waste gas pressure is high, the waste gas is likely to pass through the biofilm quickly, and the contact time with the microorganisms is short, affecting the effect of waste gas purification. When the waste gas pressure is low, multiple rows of biofilms will cause waste gas attenuation, affecting the efficiency of waste gas purification. Utility Model Content

[0005] The purpose of the utility model is to provide a waste gas microbial deodorization device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas microbial deodorization device, comprising: a box body and an atomizer, an atomizer is provided on one side of the outer wall of the box body, an air guide plate is provided on one side of the inner wall of the box body, an air inlet pipe is provided on the side of the box body close to the air guide plate, a fixed plate is provided on the inner wall of one side of the box body, a rotating shaft is provided on the inner wall of the other side, a rotating frame is provided on the outer side of the rotating shaft, a U-shaped groove is provided on one side of the rotating frame and the fixed plate, a filling frame is provided inside the U-shaped groove, biofilms are provided on both sides of the filling frame, and elastic rubber strips are provided between the filling frames located on both sides of the inner wall of the box body, and there are a plurality of elastic rubber strips, and gaps are left between the plurality of elastic rubber strips.

[0007] Furthermore, the filling frames located on both sides of the inner wall of the box are arranged in a V shape, there are multiple fixed plates, and the multiple fixed plates are arranged equidistantly on one side of the box, and there are multiple rotating shafts, and the multiple rotating shafts are arranged equidistantly on one side of the box.

[0008] Furthermore, strip ventilation slots are provided inside the air guide plate, and there are a plurality of the strip ventilation slots, which are evenly spaced from top to bottom on the air guide plate.

[0009] Furthermore, an air outlet pipe is provided on one side of the box body away from the air inlet pipe, and a sewage valve is provided on one side of the bottom of the box body.

[0010] Furthermore, the width of the filling frame is greater than half of the width of the box body.

[0011] Furthermore, a spray conduit is provided at one end of the mist outlet of the atomizer, one end of the mist outlet of the spray conduit is close to one side of the air inlet pipe, and a one-way valve is provided at one end of the spray conduit.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model will cause unstable pressure during the process of exhaust gas intake through the intake pipe. When the exhaust gas pressure is relatively high, the force with which the exhaust gas is blown toward the filler rack becomes greater. At this time, the filler rack on one side of the rotating rack will be blown toward the filler rack on the side of the fixed plate, forming a V-shaped wind receiving surface with one side open, thereby increasing the contact area between the exhaust gas and the biofilm, thereby improving the purification effect of the exhaust gas. When the exhaust gas pressure is relatively low, a gap will be left between the filler racks on both sides, thereby reducing the pressure loss of the exhaust gas through the gap, thereby ensuring the purification effect of the exhaust gas and improving the exhaust gas purification efficiency when the exhaust gas pressure is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a waste gas microbial deodorization device of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the internal structure of a waste gas microbial deodorization device of the utility model;

[0016] Figure 3 This is a top view of the internal structure of a waste gas microbial deodorization device of the utility model;

[0017] Figure 4 This is a front view of a waste gas microbial deodorization device according to the utility model.

[0018] In the figure: 1. box body; 2. atomizer; 3. spray duct; 4. air inlet pipe; 5. air outlet pipe; 6. air guide plate; 7. fixing plate; 8. U-shaped slot; 9. packing rack; 10. biofilm; 11. rotating shaft; 12. rotating rack; 13. elastic rubber strip; 14. drain valve. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a waste gas microbial deodorization device, comprising: a box body 1 and an atomizer 2, an atomizer 2 is provided on one side of the outer wall of the box body 1, an air guide plate 6 is provided on one side of the inner wall of the box body 1, an air inlet pipe 4 is provided on the side of the box body 1 close to the air guide plate 6, a fixed plate 7 is provided on the inner wall of one side of the box body 1, a rotating shaft 11 is provided on the inner wall of the other side, a rotating frame 12 is provided on the outer side of the rotating shaft 11, a U-shaped groove 8 is provided on one side of the rotating frame 12 and the fixed plate 7, a filling frame 9 is provided inside the U-shaped groove 8, biofilms 10 are provided on both sides of the filling frame 9, and elastic rubber strips 13 are provided between the filling frames 9 on both sides of the inner wall of the box body 1. There are a plurality of elastic rubber strips 13, with gaps between the plurality of elastic rubber strips 13. The exhaust gas enters the interior of the box body 1 through the air inlet pipe 4, and the atomizer 2 atomizes the water and sends the water mist into the box body 1 through the spray duct 3 to humidify the exhaust gas. When the moist exhaust gas passes through the air guide plate 6 and then through the filler frame 9 with the biofilm 10, the malodorous substances in the gas are dissolved in water and are captured, adsorbed and absorbed by the microorganisms attached to the surface of the biofilm 10. Then, the pollutants are decomposed into harmless small molecules such as CO2, H2O, NO3- or some metabolic byproducts in the microbial cells, and finally the purified gas is discharged through the exhaust pipe 5.

[0021] The biofilm 10 is composed of a microbial community. The autotrophic microorganisms commonly used in waste gas microbial deodorization include nitrifying bacteria and sulfidizing bacteria, while the heterotrophic microorganisms include yeast, actinomycetes and lactic acid bacteria. Under suitable environmental conditions, these microorganisms form a thin film on the surface of the filler, which can utilize the inorganic and organic substances in the waste gas as carbon sources and energy sources. Through the metabolism of microorganisms, malodorous substances are decomposed and converted into odorless substances such as water, carbon dioxide and minerals, thereby achieving the purpose of purifying malodorous gases.

[0022] The filler rack 9 is used to place fillers, which play a role in supporting the biofilm and increasing the gas-liquid contact area in the biofiltration deodorization system to promote the absorption and transformation of malodorous substances. Commonly used fillers include composite fillers or high-quality activated carbon fillers, which have a flower-shaped structure and can cut malodorous gases multiple times and at multiple angles, effectively avoiding gas turbulence and improving deodorization efficiency.

[0023] The packing frames 9 located on both sides of the inner wall of the box body 1 are arranged in a V shape, there are multiple fixing plates 7, and the multiple fixing plates 7 are arranged equidistantly on one side of the box body 1, and there are multiple rotating shafts 11, and the multiple rotating shafts 11 are arranged equidistantly on one side of the box body 1. The multiple rows of biofilms 10 are arranged to ensure the purification effect of the exhaust gas.

[0024] The air guide plate 6 is provided with strip ventilation slots inside. There are a plurality of strip ventilation slots. The strip ventilation slots are evenly arranged from top to bottom on the air guide plate 6 to facilitate the exhaust gas to be evenly blown toward the biofilm 10 .

[0025] An air outlet pipe 5 is provided on one side of the box body 1 away from the air inlet pipe 4 for discharging the purified waste gas, and a sewage valve 14 is provided on one side of the bottom of the box body 1 for discharging metabolic waste produced by microorganisms.

[0026] The width of the filling frame 9 is greater than half the width of the box body 1. It is ensured that when the exhaust gas blows toward the filling frame 9, the filling frame 9 on the rotating frame 12 side will be blown toward the filling frame 9 on the fixed plate 7 side, and the filling frame 9 on the rotating frame 12 side and the filling frame 9 on the fixed plate 7 side can abut and stop, forming a V-shaped wind receiving surface with one side open.

[0027] A spray conduit 3 is provided at one end of the mist outlet of the atomizer 2, and one end of the mist outlet of the spray conduit 3 is close to the side of the air inlet pipe 4. After the atomizer 2 atomizes the water, the water mist is sent into the box 1 through the spray conduit 3 to humidify the exhaust gas. The pollutants in the exhaust gas first contact with the water and dissolve in the water, while ensuring that the humidity conditions inside the box 1 are suitable for the activity of microorganisms. A one-way valve is provided at one end of the spray conduit 3 to prevent the exhaust gas from entering the atomizer 2 through the spray conduit 3.

[0028] When the waste gas microbial deodorization device is in use, the waste gas enters the box body 1 through the air inlet pipe 4, the atomizer 2 atomizes the water and sends the water mist into the box body 1 through the spray pipe 3 to humidify the waste gas. When the moist waste gas passes through the air guide plate 6 and then through the filler frame 9 with the biofilm 10, the malodorous substances in the gas are dissolved in water and captured, adsorbed and absorbed by the microorganisms attached to the surface of the biofilm 10. Then, the pollutants are decomposed into harmless small molecules such as CO2, H2O, NO3- or some metabolic byproducts in the microbial cells, and finally the purified gas is discharged through the gas outlet pipe 5;

[0029] When the exhaust gas is inhaled through the intake pipe 4, the pressure is unstable. When the exhaust gas pressure is high, the force of the exhaust gas blowing toward the filler frame 9 becomes stronger. At this time, the filler frame 9 on the side of the rotating frame 12 will be blown toward the filler frame 9 on the side of the fixed plate 7 until the filler frame 9 on the side of the rotating frame 12 stops contacting the filler frame 9 on the side of the fixed plate 7. The elastic rubber strip 13 is compressed by force. When the filler frames 9 on both sides contact, a V-shaped wind receiving surface with one side open is formed. At this time, the exhaust gas is purified by the biofilm 10 with a V-shaped structure. For the biofilm with a single-plane structure, the contact area between the exhaust gas and the biofilm 10 is increased, thereby improving the purification effect of the exhaust gas. On the contrary, when the exhaust gas pressure is relatively low, under the elastic force of the elastic rubber strip 13, a gap will be left between the filler frames 9 on both sides, and the direction of the gap is exactly toward the biofilm 10 in the rear row. The pressure loss of the exhaust gas is reduced through the gap. By setting up multiple rows of biofilms 10, the purification effect of the exhaust gas is guaranteed, while the exhaust gas purification efficiency is improved when the exhaust gas pressure is low.

[0030] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A waste gas microbial deodorization device, comprising: A box body (1) and an atomizer (2), characterized in that: an atomizer (2) is provided on one side of the outer wall of the box body (1), an air guide plate (6) is provided on one side of the inner wall of the box body (1), an air inlet pipe (4) is provided on the side of the box body (1) close to the air guide plate (6), a fixed plate (7) is provided on the inner wall of one side of the box body (1), and a rotating shaft (11) is provided on the inner wall of the other side, a rotating frame (12) is provided on the outer side of the rotating shaft (11), a U-shaped groove (8) is provided on one side of the rotating frame (12) and the fixed plate (7), a filling frame (9) is provided inside the U-shaped groove (8), and biofilms (10) are provided on both sides of the filling frame (9), and elastic rubber strips (13) are provided between the filling frames (9) located on both sides of the inner wall of the box body (1), and there are a plurality of elastic rubber strips (13), and gaps are left between the plurality of elastic rubber strips (13).

2. The waste gas microbial deodorization device according to claim 1, characterized in that: The filling frames (9) located on both sides of the inner wall of the box body (1) are arranged in a V shape, there are a plurality of fixing plates (7), and the plurality of fixing plates (7) are arranged at equal distances on one side of the box body (1), and there are a plurality of rotating shafts (11), and the plurality of rotating shafts (11) are arranged at equal distances on one side of the box body (1).

3. The waste gas microbial deodorization device according to claim 1, characterized in that: The air guide plate (6) is provided with strip-shaped ventilation slots inside, and there are a plurality of the strip-shaped ventilation slots. The plurality of the strip-shaped ventilation slots are arranged at equal distances from top to bottom on the air guide plate (6).

4. The waste gas microbial deodorization device according to claim 1, characterized in that: An air outlet pipe (5) is provided on the side of the box body (1) away from the air inlet pipe (4), and a sewage discharge valve (14) is provided on the bottom side of the box body (1).

5. The waste gas microbial deodorization device according to claim 2, characterized in that: The width of the filling frame (9) is greater than half the width of the box body (1).

6. The waste gas microbial deodorization device according to claim 1, characterized in that: A spray conduit (3) is provided at one end of the mist outlet of the atomizer (2), one end of the mist outlet of the spray conduit (3) is close to one side of the air inlet pipe (4), and a one-way valve is provided at one end of the spray conduit (3).

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