Microbial waste gas treatment device

Abstract

The utility model discloses a microbial waste gas treatment device and relates to the technical field of environmental protection equipment. Comprising a microbiological treatment box, an air supply assembly and a microbiological filler tower which are sequentially connected, at least one microbiological culture bed is arranged in the microbiological treatment box, multiple microbiological filler layers are sequentially arranged in the microbiological filler tower from bottom to top, and microbiological bacterium layers are arranged on the microbiological culture bed and the microbiological filler layers. The arranged microbiological treatment box is used for carrying out primary purification treatment on organic waste gas, the microbiological culture bed is used for attachment and reproduction of microbial colonies, the organic waste gas enters the microbiological filler tower for further purification treatment after passing through the microbiological treatment box, and the organic waste gas sequentially passes through a plurality of microbiological filler layers upwards from the tower bottom; organic waste gas is subjected to double purification of the equipment, so that the treatment effect is improved, the cleanliness of exhausted air is greatly improved, and environmental protection is more facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, and more specifically, it relates to a microbial waste gas treatment device. Background Art

[0002] A large amount of waste gas is generated in industrial production. Directly discharging waste gas will cause great harm to the environment and human body, which is not conducive to sustainable development. Based on this, China has taken various measures for waste gas emissions, mainly purifying the waste gas generated in industrial production before discharging. The existing waste gas purification methods generally include adsorption method, condensation method, combustion method, photocatalysis and biological method. As a treatment method emerging in recent years, the biological method is more environmentally friendly.

[0003] The biological method mainly uses the metabolism of microorganisms to degrade organic waste gas and convert it into harmless or less harmful simple inorganic substances, such as carbon dioxide, water, sulfate and other substances. Most of the existing biological treatment equipment has a single purification process, and the waste gas is discharged after being treated by a biological trickling device once, so the purification degree of the waste gas is not high. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a microbial waste gas treatment device. By setting a microbial treatment tank and a microbial packing tower, the microbial treatment tank conducts preliminary treatment to reduce the concentration of waste gas, and the microbial packing tower further treats the waste gas, improving the waste gas treatment effect and making the discharged air cleaner and more environmentally friendly.

[0005] The above technical purpose of the utility model is achieved by the following technical solutions: a microbial waste gas treatment device, which includes a microbial treatment tank, a air supply component and a microbial packing tower connected in sequence. One end of the microbial treatment tank is provided with an air inlet pipe. At least one microbial culture bed is arranged in the microbial treatment tank. Multiple layers of microbial packing layers are arranged in the biological packing tower from bottom to top in sequence. Microbial bacterial layers are arranged on both the microbial culture bed and the microbial packing layers. A monitoring box and a bacterial liquid mixing box are also arranged on one side of the waste gas treatment device. The bacterial liquid mixing box is communicated with the microbial packing tower, and a stirring hopper is arranged in the bacterial liquid mixing box.

[0006] The utility model is further arranged as follows: the microbial packing tower has a shell, and a purification chamber is arranged inside the shell. Multiple bearing plates are arranged on the inner cavity wall of the purification chamber from bottom to top in sequence. Each microbial packing layer is arranged on the bearing plate fixed on the inner cavity wall. A spray pipe is arranged above each microbial packing layer. Multiple spray heads are arranged at intervals along the length direction of the spray pipe. An exhaust port is opened at the top of the shell. The air supply component is connected to the bottom of the shell and at least a part of it extends into the purification chamber. A water tank is arranged at the bottom of the purification chamber.

[0007] The present utility model is further configured as follows: The stirring bucket is installed at the bottom of the bacterial liquid mixing tank through a bracket. There is a liquid delivery water pump below the stirring bucket. A liquid infusion pipe is also provided on the bacterial liquid mixing tank. A plurality of branch pipes are provided on the liquid infusion pipe. The branch pipes correspond to the microbial packing layers one by one. The liquid outlet of the branch pipe extends into the microbial packing layer. The water inlet of the liquid delivery water pump communicates with the stirring bucket. The water outlet of the liquid delivery water pump is connected to the liquid infusion pipe. A feeding port is opened on the bacterial liquid mixing tank.

[0008] The present utility model is further configured as follows: A first water circulation assembly is further provided on one side of the microbial packing tower. The first water circulation assembly includes a water storage tank, a circulation water pump, a water delivery pipe, and a return pipe. The circulation water pump has a water extraction pipe, and the water extraction pipe is connected to the water storage tank. One end of the water delivery pipe is connected to the water outlet of the circulation water pump. The water delivery pipe is respectively connected to the spray pipes. A water valve is provided on the water delivery pipe. The two ends of the return pipe are respectively connected to the water tank and the water storage tank. A sewage purification device is also provided in the water storage tank. A second water circulation assembly is provided on one side of the microbial treatment tank. The second water circulation assembly is symmetrically arranged with the first forward circulation assembly.

[0009] The present utility model is further configured as follows: The air supply assembly includes a first air duct, a fan, and a second air duct. The first air duct is used to connect the microbial treatment tank and the air inlet of the fan. The second air duct is used to connect the air outlet of the fan and the microbial packing tower.

[0010] The present utility model is further configured as follows: A pH value monitoring sensor is further provided in the purification cavity. The pH value monitoring sensor is electrically connected to the monitoring box.

[0011] In summary, the present utility model has the following beneficial effects: The provided microbial treatment tank is used for the preliminary purification treatment of organic waste gas. The microbial culture bed is used for the attachment and reproduction of microbial colonies. The organic waste gas enters the microbial packing tower for further purification treatment after passing through the microbial treatment tank. The organic waste gas sequentially passes through multiple layers of microbial packing layers from the bottom of the tower upward, and is gradually degraded and purified and then discharged from the exhaust port. The organic waste gas is purified by the double purification of the equipment, improving the treatment effect, greatly improving the cleanliness of the discharged air, and being more conducive to environmental protection. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the structural schematic diagram of the microbial packing tower of the present utility model;

[0014] Figure 3 is the structural schematic diagram of the microbial treatment tank of the present utility model.

[0015] In the figure: 1. Microbial treatment tank; 11. Second water circulation component; 12. Air inlet pipe; 13. Microbial culture bed; 2. Microbial packing tower; 21. Exhaust port; 22. Housing; 23. Purification chamber; 24. Water tank; 3. Air supply component; 31. First air duct; 32. Fan; 33. Second air duct; 4. Bacterial liquid mixing tank; 41. Infusion pipe; 5. Monitoring box; 6. First water circulation component; 61. Water storage pool; 62. Circulation water pump; 63. Water supply pipe; 64. Return pipe; 65. Spraying pipe; 66. Spraying head; 7. Microbial packing layer. Detailed implementation manners

[0016] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0017] As Figure 1 、 Figure 2 、 Figure 3 shown, a microbial waste gas treatment device of the present utility model includes a microbial treatment tank 1, an air supply component 3 and a microbial packing tower 2 which are connected in sequence. One end of the microbial treatment tank 1 is connected with an air inlet pipe 12. The air inlet pipe 12 is used to convey the organic waste gas generated by the waste gas source into the microbial treatment tank 1. The microbial culture bed 13 is provided with a nutrient solution and a microbial bacterial layer. The entering organic waste gas is sprayed by the second water circulation component 11, and is dissolved from the gas phase into the water to become a liquid-phase waste gas, which falls on the microbial culture bed 13. The microorganisms absorb the nutrients in the organic waste gas through their own metabolism, and decompose the organic waste gas into harmless or less harmful simple inorganic substances, such as carbon dioxide, water, sulfate and other substances. For the organic waste gas entering the microbial treatment tank 1 that fails to be effectively treated, the air supply component 3 plays a role of transfer and transportation. The air supply component 3 is arranged between the microbial treatment tank 1 and the microbial packing tower 2, and is used to convey the preliminarily purified organic waste gas in the microbial treatment tank 1 into the microbial packing tower 2. The air supply component 3 includes a first air duct 31, a fan 32 and a second air duct 33. The first air duct 31 is used to connect the microbial treatment tank 1 and the air inlet of the fan 32, and the second air duct 33 is used to connect the air outlet of the fan 32 and the microbial packing tower 2.

[0018] As Figure 1 、 Figure 2As shown, the microbial packing tower 2 has a housing 22 with a purification chamber 23. In the purification chamber 23, multiple bearing plates are fixedly arranged on the inner wall thereof in sequence from bottom to top. Each bearing plate is provided with a microbial packing layer 7. At the edge position of the upper end face of each bearing plate, there is an upward convex block. A fence is formed between the three-sided block and the inner cavity wall to enclose the microbial packing layer 7 therein to prevent the microbial packing layer 7 from falling. A layer of biofilm is laid on each bearing plate, and micropores penetrating the plate body are evenly formed on the bearing plate; the microbial bacterial layer on the microbial packing layer 7 is a microbial colony formed by microorganisms. A spray pipe 65 is horizontally arranged above each microbial packing layer 7. A plurality of spray heads 66 are arranged at intervals along the length direction of the spray pipe 65. The spray pipe 65 corresponds to the microbial packing layer 7 one by one. One end of the spray pipe 65 passes through the housing 22 and is connected to a water supply pipe 63. During use, the circulating water pump 62 in the first water circulation assembly 6 extracts water from the storage tank 61, conveys the extracted water to each spray pipe 65 along the water supply pipe 63, and then sprays the water on the gaseous organic waste gas through the spray heads 66. After it becomes liquid phase, it falls on the microbial packing layer 7 and is decomposed by microorganisms. The water falling after being sprayed by the spray heads 66 is collected in the water tank 24 at the bottom of the purification chamber 23, and then the water in the water tank 24 is refluxed to the storage tank 61 through the reflux pipe 64 for reciprocating circulation to achieve the purification of the organic waste gas. The purified organic waste gas is discharged from the exhaust port 21.

[0019] As Figure 1 shown, the monitoring box 5 arranged on one side of the microbial packing tower 2 detects the pH value in the purification chamber 23 through a pH value monitoring sensor to observe whether the environment in the purification chamber 23 is suitable for the reproduction of microorganisms. At the same time, equipment such as an exhaust gas concentration detector and a pressure gauge can also be installed to detect the working state in the purification chamber 23 in real time; a stirring hopper is arranged in the bacterial liquid mixing box 4. The stirring hopper is in an inverted conical shape, and stirring blades are arranged in the stirring hopper. A feeding port is formed on the bacterial liquid mixing box 4, and the feeding port is opposite to the opening of the stirring hopper. The bottom of the stirring hopper is communicated with the water inlet of the liquid delivery water pump; during use, the bacterial liquid mixing box 4 is used to add bacterial strains and nutrient solutions. The bacterial strains and nutrient solutions are simultaneously or respectively put into the stirring hopper, and after being mixed, the liquid delivery water pump is used to send the bacterial strains and nutrient solutions to the microbial packing layer 7 through the liquid delivery pipe 41 and the branch pipe to supplement the consumed microorganisms and add nutrients to promote the growth and reproduction of microorganisms so as to improve the decomposition effect of the organic waste gas.

[0020] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A microbial waste gas treatment device, characterized in that: The waste gas treatment device includes a microbial treatment tank (1), a air supply component (3) and a microbial packing tower (2) connected in sequence. One end of the microbial treatment tank (1) is provided with an air inlet pipe (12). At least one microbial culture bed (13) is arranged in the microbial treatment tank (1). A plurality of layers of microbial packing layers (7) are arranged in the biological packing tower from bottom to top in sequence. Microbial bacterial layers are arranged on both the microbial culture bed (13) and the microbial packing layer (7). A monitoring box (5) and a bacterial liquid mixing tank (4) are also arranged on one side of the waste gas treatment device. The bacterial liquid mixing tank (4) communicates with the microbial packing tower (2). A stirring hopper is arranged in the bacterial liquid mixing tank (4).

2. The microbial waste gas treatment device according to claim 1, characterized in that: The microbial packing tower (2) has a housing (22). A purification chamber (23) is arranged inside the housing (22). A plurality of bearing plates are arranged on the inner cavity wall of the purification chamber (23) from bottom to top in sequence. Each microbial packing layer (7) is arranged on the bearing plate fixed to the inner cavity wall. A spray pipe (65) is arranged above each microbial packing layer (7). A plurality of spray heads (66) are arranged at intervals along the length direction of the spray pipe (65). An exhaust port (21) is opened at the top of the housing (22). The air supply component (3) is connected to the bottom of the housing (22) and at least a part of it extends into the purification chamber (23). A water tank (24) is arranged at the bottom of the purification chamber (23).

3. The microbial waste gas treatment device according to claim 2, characterized in that: The stirring hopper is installed at the bottom of the bacterial liquid mixing tank (4) through a bracket. A liquid delivery water pump is arranged below the stirring hopper. A liquid delivery pipe (41) is also arranged on the bacterial liquid mixing tank (4). A plurality of branch pipes are arranged on the liquid delivery pipe (41). The branch pipes correspond to the microbial packing layers (7) one by one. The liquid outlet of the branch pipe extends into the microbial packing layer (7). The water inlet of the liquid delivery water pump communicates with the stirring hopper. The water outlet of the liquid delivery water pump is connected to the liquid delivery pipe (41). A feeding port is opened on the bacterial liquid mixing tank (4).

4. The microbial waste gas treatment device according to claim 3, characterized in that: A first water circulation component (6) is also arranged on one side of the microbial packing tower (2). The first water circulation component (6) includes a water storage pool (61), a circulation water pump (62), a water delivery pipe (63) and a return pipe (64). A water extraction pipe is arranged on the circulation water pump (62). The water extraction pipe is connected to the water storage pool (61). One end of the water delivery pipe (63) is connected to the water outlet of the circulation water pump (62). The water delivery pipe (63) is respectively connected to the spray pipes (65). A water valve is arranged on the water delivery pipe (63). The two ends of the return pipe (64) are respectively connected to the water tank (24) and the water storage pool (61). A sewage purification device is also arranged in the water storage pool (61). A second water circulation component (11) is arranged on one side of the microbial treatment tank (1). The second water circulation component (11) is symmetrically arranged with the first water circulation component.

5. The microbial waste gas treatment device according to claim 1, characterized in that: The air supply assembly (3) includes a first air duct (31), a fan (32), and a second air duct (33). The first air duct (31) is used to connect the microbial treatment tank (1) and the air inlet of the fan (32), and the second air duct (33) is used to connect the air outlet of the fan (32) and the microbial packing tower (2).

6. The microbial waste gas treatment device according to claim 2, wherein: A pH value monitoring sensor is further provided in the purification chamber (23), and the pH value monitoring sensor is electrically connected to the monitoring box (5).

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