Biological deodorization tower for waste gas treatment
By introducing filtration and purification structures into the biological deodorization tower, the contact time between waste gas and water and packing material is extended, solving the problem of insufficient contact time of the packing material structure and achieving more efficient waste gas purification.
Patent Information
- Application Number
- CN202520463842.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-17
AI Technical Summary
The contact time between the packing structure and the exhaust gas in existing biological deodorization towers is relatively short, which affects the purification effect.
A biological deodorization tower for waste gas treatment was designed, comprising a filtration structure and a purification structure. The filtration structure uses air distribution nozzles to bring the waste gas into contact with pretreated water, while the purification structure uses guide plates and push-pull plates to form a tortuous gas flow channel to extend the contact time between the waste gas and the packing material.
It significantly improves the filtration and purification effects of particulate matter in exhaust gas, enhancing the practicality of the deodorization tower.
Smart Images

Figure CN223915097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas treatment technology, specifically a biological deodorization tower for waste gas treatment. Background Technology
[0002] Biological deodorization is a biological waste gas treatment technology that uses biological methods to remove odor molecules from waste gas through a microbial membrane specially cultivated on biological packing material in a biological filter.
[0003] The exhaust gas must first undergo pretreatment to remove particulate matter and regulate the temperature and humidity of the exhaust gas. After treatment, the gas enters the biological deodorization tower through a gas distributor. The biological deodorization tower is filled with biological packing material containing microorganisms and a certain amount of moisture.
[0004] A search revealed that in an improved biological deodorization tower with patent publication number CN220758676U, it was proposed that "this utility model improves the contact time of waste gas inside the deodorization tower by using a multi-layer mounting plate and filling material structure, thereby improving the deodorization effect of the waste gas. At the same time, the mounting block and sliding groove structure facilitates the installation and disassembly of the mounting plate, making it convenient to replenish and replace the filling material later, and ensuring the deodorization effect when the device is in use."
[0005] However, the above solution still has some shortcomings in actual use. The technical solution uses multiple sets of filling material structures to treat the exhaust gas, but the contact time between the filling material structure and the exhaust gas is short, which affects the purification effect of the exhaust gas and greatly reduces the filtration effect of the deodorization tower. Utility Model Content
[0006] This invention provides a biological deodorization tower for waste gas treatment to solve the problems in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a biological deodorization tower for waste gas treatment, comprising a deodorization tower structure, wherein a filtration structure and a purification structure are provided inside the deodorization tower structure, the purification structure is located above the filtration structure, and an emission structure is provided at the top of the deodorization tower structure;
[0008] The deodorization tower structure includes a tower body, and a grid plate is fixedly installed on the inner wall of the tower body. The grid plate divides the inner cavity of the tower body into a filtration cavity and a purification cavity. The filtration structure is located inside the filtration cavity, and the purification structure is located in the purification cavity.
[0009] The filter structure includes a water inlet valve, an air inlet valve, and an exhaust valve. The water inlet valve, air inlet valve, and exhaust valve are all fixedly connected to the inner wall of the filter chamber. An air distribution nozzle is fixedly installed at the bottom of the air inlet valve.
[0010] The purification structure includes a guide plate and a push-pull plate. The guide plate is fixedly connected to the inner wall of the purification chamber, and the push-pull plate is slidably connected to the inner wall of the purification chamber. A packing material is provided at the top of the push-pull plate.
[0011] Furthermore, eight base rods are fixedly installed at the bottom of the tower body.
[0012] Furthermore, the inner wall of the filter chamber is filled with pretreated water through a water inlet valve, and the air distribution nozzle is located below the liquid level of the pretreated water.
[0013] Furthermore, the guide plate and the push-pull plate are respectively provided with a first vent and a second vent. The first vents in each push-pull plate are arranged alternately, and the second vents in each guide plate are arranged alternately.
[0014] Furthermore, the emission structure includes a top cover, the bottom of which is fixedly connected to the top of the tower body, an emission fan is installed inside the top cover, and a dustproof net is installed at the top of the emission fan.
[0015] Compared with the prior art, this utility model provides a biological deodorization tower for waste gas treatment, which has the following beneficial effects:
[0016] 1. This biological deodorization tower for waste gas treatment, by setting up a filtration structure, uses air distribution nozzles to extend into the pre-treatment water, causing the waste gas to be passed into the pre-treatment water through the air distribution nozzles, thereby achieving water washing treatment of the waste gas, so that the waste gas comes into uniform contact with the pre-treatment water, thereby contacting the particulate matter in the waste gas with the water, thus improving the filtration effect of the particulate matter in the waste gas.
[0017] 2. This biological deodorization tower for waste gas treatment, through the setting of a purification structure, utilizes the first and second air inlets opened inside the guide plate and push-pull plate to form a tortuous gas flow channel inside the purification chamber. This effectively prolongs the contact time between the waste gas and the packing material inside the gas flow channel, significantly improving the purification effect of the packing material on the waste gas, thereby enhancing the practicality of the deodorization tower. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a side sectional view of the structure of this utility model;
[0020] Figure 3 This is an exploded view of the structure of this utility model;
[0021] Figure 4 This is a schematic diagram of the emission structure of this utility model.
[0022] In the diagram: 1. Deodorization tower structure; 101. Tower body; 102. Grating plate; 103. Filter chamber; 104. Purification chamber; 2. Bottom rod; 3. Filter structure; 301. Water inlet valve; 302. Air inlet valve; 303. Discharge valve; 304. Air distribution nozzle; 4. Purification structure; 401. Guide plate; 402. Push-pull plate; 403. Packing material; 404. First air inlet; 405. Second air inlet; 5. Discharge structure; 501. Top cover; 502. Discharge fan; 503. Dustproof net. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 This utility model discloses a biological deodorization tower for waste gas treatment, including a deodorization tower structure 1. The deodorization tower structure 1 is provided with a filter structure 3 and a purification structure 4 inside. The purification structure 4 is located above the filter structure 3. The top of the deodorization tower structure 1 is provided with an emission structure 5.
[0025] The deodorization tower structure 1 includes a tower body 101, and a grid plate 102 is fixedly installed on the inner wall of the tower body 101. The grid plate 102 divides the inner cavity of the tower body 101 into a filtration cavity 103 and a purification cavity 104. The filtration structure 3 is located inside the filtration cavity 103, and the purification structure 4 is located in the purification cavity 104.
[0026] The filter structure 3 includes a water inlet valve 301, an air inlet valve 302, and an exhaust valve 303. The water inlet valve 301, the air inlet valve 302, and the exhaust valve 303 are all fixedly connected to the inner wall of the filter chamber 103. An air distribution nozzle 304 is fixedly installed at the bottom of the air inlet valve 302. Pretreated water is injected into the inner wall of the filter chamber 103 through the water inlet valve 301. The air distribution nozzle 304 is located below the liquid level of the pretreated water.
[0027] The working principle of pre-treated water has been proposed in a biological deodorization tower for waste gas with patent publication number CN220125898U, and will not be repeated here.
[0028] By setting up the filter structure 3, the air distribution nozzle 304 is inserted into the pretreatment water, causing the exhaust gas to be passed into the pretreatment water through the air distribution nozzle 304, thereby achieving water washing treatment of the exhaust gas. This allows the exhaust gas to come into uniform contact with the pretreatment water, thereby bringing the particulate matter in the exhaust gas into contact with the water, thus improving the filtration effect of the particulate matter in the exhaust gas.
[0029] The purification structure 4 includes a guide plate 401 and a push-pull plate 402. The guide plate 401 is fixedly connected to the inner wall of the purification chamber 104, and the push-pull plate 402 is slidably connected to the inner wall of the purification chamber 104. The guide plate 401 and the push-pull plate 402 are respectively provided with a first vent 404 and a second vent 405. The first vents 404 in each push-pull plate 402 are arranged alternately, and the second vents 405 in each guide plate 401 are arranged alternately. A packing body 403 is provided at the top of the push-pull plate 402. The packing body 403 can be an organic packing, an inorganic packing, or a composite packing to treat the waste gas.
[0030] By setting up the purification structure 4, the first vent 404 and the second vent 405 opened inside the guide plate 401 and the push-pull plate 402 can form a tortuous gas flow channel inside the purification chamber 104. This effectively prolongs the contact time between the exhaust gas and the packing body 403 inside the gas flow channel, significantly improving the purification effect of the packing body 403 on the exhaust gas, thereby enhancing the practicality of the deodorization tower.
[0031] Specifically, eight bottom rods 2 are fixedly installed at the bottom end of the tower body 101.
[0032] In this embodiment, the base rod 2 allows the tower body 101 to be stably placed on the ground.
[0033] Specifically, the emission structure 5 includes a top cover 501, the bottom end of which is fixedly connected to the top end of the tower body 101. An emission fan 502 is installed inside the top cover 501, and a dustproof net 503 is installed at the top end of the emission fan 502.
[0034] In this embodiment, the exhaust gas after secondary treatment will eventually reach the bottom of the top cover 501, and then the exhaust fan 502 will be started to discharge the treated gas from the inside of the tower body 101.
[0035] In use, pre-treatment water is first injected into the inner wall of the filter chamber 103 through the water inlet valve 301, so that the liquid level of the pre-treatment water gradually submerges the air distribution nozzle 304. Then, the exhaust gas is introduced into the air distribution nozzle 304 through the air inlet valve 302, so that the exhaust gas is introduced into the pre-treatment water through the air distribution nozzle 304, so that the particulate matter in the exhaust gas can fully contact the pre-treatment water, thereby realizing the water washing treatment of the exhaust gas and achieving the effect of preliminary treatment of the exhaust gas.
[0036] After being washed with water, the exhaust gas will gradually float out of the pretreated water, and this part of the exhaust gas will pass through the grid plate 102 and enter the interior of the purification chamber 104.
[0037] The exhaust gas begins to pass through the first vent 404 and the second vent 405 sequentially through the packing body 403. Since the first vent 404 and the second vent 405 are connected, the first vent 404 and the second vent 405 opened inside the guide plate 401 and the push-pull plate 402 can form a tortuous gas flow channel inside the purification chamber 104, so that the packing and the exhaust gas can be in uniform and sufficient contact. The packing can be organic packing, inorganic packing or composite packing, to treat the exhaust gas.
[0038] The exhaust gas, after secondary treatment, eventually reaches the area below the top cover 501, whereupon the exhaust fan 502 is activated, causing the treated gas to be discharged from inside the tower body 101.
[0039] In summary, this biological deodorization tower for waste gas treatment, by setting up a filter structure 3 and using an air distribution nozzle 304 to extend into the pre-treatment water, causes the waste gas to be passed into the pre-treatment water through the air distribution nozzle 304, thereby achieving water washing treatment of the waste gas. This allows the waste gas to come into uniform contact with the pre-treatment water, thereby bringing the particulate matter in the waste gas into contact with the water, thus improving the filtration effect on the particulate matter in the waste gas.
[0040] By setting up the purification structure 4, the first vent 404 and the second vent 405 opened inside the guide plate 401 and the push-pull plate 402 can form a tortuous gas flow channel inside the purification chamber 104. This effectively prolongs the contact time between the exhaust gas and the packing body 403 inside the gas flow channel, significantly improving the purification effect of the packing body 403 on the exhaust gas, thereby enhancing the practicality of the deodorization tower.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A biological deodorization tower for waste gas treatment, comprising a deodorization tower structure (1), characterized in that: The deodorization tower structure (1) is provided with a filtration structure (3) and a purification structure (4) inside. The purification structure (4) is located above the filtration structure (3). The top of the deodorization tower structure (1) is provided with an exhaust structure (5). The deodorization tower structure (1) includes a tower body (101), and a grid plate (102) is fixedly installed on the inner wall of the tower body (101). The grid plate (102) divides the inner cavity of the tower body (101) into a filtration cavity (103) and a purification cavity (104). The filtration structure (3) is located inside the filtration cavity (103), and the purification structure (4) is located in the purification cavity (104). The filter structure (3) includes a water inlet valve (301), an air inlet valve (302), and an exhaust valve (303). The water inlet valve (301), the air inlet valve (302), and the exhaust valve (303) are all fixedly connected to the inner wall of the filter chamber (103). An air distribution nozzle (304) is fixedly installed at the bottom of the air inlet valve (302). The purification structure (4) includes a guide plate (401) and a push-pull plate (402). The guide plate (401) is fixedly connected to the inner wall of the purification chamber (104), and the push-pull plate (402) is slidably connected to the inner wall of the purification chamber (104). A filler body (403) is provided at the top of the push-pull plate (402).
2. The biological deodorization tower for waste gas treatment according to claim 1, characterized in that: The bottom end of the tower body (101) is fixedly installed with a bottom rod (2), and the number of bottom rods (2) is eight.
3. The biological deodorization tower for waste gas treatment according to claim 1, characterized in that: The inner wall of the filter chamber (103) is filled with pretreated water through the water inlet valve (301), and the air distribution nozzle (304) is located below the liquid level of the pretreated water.
4. The biological deodorization tower for waste gas treatment according to claim 1, characterized in that: The guide plate (401) and the push-pull plate (402) are respectively provided with a first vent (404) and a second vent (405). The first vents (404) in each push-pull plate (402) are arranged alternately, and the second vents (405) in each guide plate (401) are arranged alternately.
5. A biological deodorization tower for waste gas treatment according to claim 1, characterized in that: The discharge structure (5) includes a top cover (501), the bottom end of which is fixedly connected to the top end of the tower body (101), and an exhaust fan (502) is provided inside the top cover (501), with a dustproof net (503) provided at the top end of the exhaust fan (502).
Citation Information
Patent Citations
Biological deodorization tower for waste gas
CN220125898U
Improved biological deodorization tower
CN220758676U