Efficient biological waste gas treatment device

Abstract

The utility model relates to the technical field of waste gas treatment, in particular to an efficient biological method waste gas treatment device which comprises a treatment tank, the treatment tank is composed of a lower tank body, a middle tank body and an upper tank body, a gas inlet pipe is arranged on the left side of the lower tank body, and a conical cover is arranged in the lower tank body and located above the gas inlet pipe. A filler assembly used for attaching microorganisms is arranged in the middle tank body, the filler assembly is composed of a plurality of filler mechanisms which are connected with one another, each filler mechanism comprises a fixing frame and a filler frame, and a gas guide mechanism used for guiding waste gas is arranged at the inner bottom of each filler frame. And a spraying mechanism for spraying microorganisms and nutrient solution is arranged at the top of the upper tank body. The annular frame and the grating frame are used as gas guide mechanisms in a matched mode, the flowing mode of waste gas is optimized, it is guaranteed that the waste gas is evenly distributed in the filler frame, and the contact opportunity and the contact efficiency of the waste gas and filler in the filler frame are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a high-efficiency biological waste gas treatment device. Background Technique

[0002] Biological waste gas treatment is a method that uses the metabolic ability of microorganisms to treat and degrade waste gas. It is commonly used to treat waste gas containing organic pollutants. Specific microorganisms are used to decompose organic substances in the waste gas and convert harmful substances into harmless or less harmful substances.

[0003] In the prior art, a Chinese patent with the publication number CN209173738U, a biological waste gas high-efficiency treatment device, adopts the following scheme: "including a box body, a cover is fixedly installed at the upper end of the box body, exhaust pipes are communicated with both upper parts of the two sides of the box body, an air inlet pipe is communicated with the lower part of one side of the box body, a bacterial body culture box is fixedly installed on one side of the upper surface of the cover, a valve is fixedly installed on the liquid outlet pipe, the lower end of the liquid outlet pipe penetrates through the cover and is communicated with a spray pipe, and a plurality of spray heads are fixedly installed on the spray pipe. A partition plate is fixedly installed in the middle and lower part of the box body, a plurality of through holes are opened on the partition plate, fillers are filled above the partition plate, and a stirring mechanism is arranged between the fillers". This biological waste gas high-efficiency treatment device has high efficiency, simple structure and strong practicability.

[0004] However, the above scheme still has some deficiencies. For example, when treating waste gas, the flow mode of the waste gas to the filler is relatively single. When the waste gas flows to the filler, more dead zones are easily generated, resulting in local concentration of the waste gas, inability to be evenly distributed inside the filler, insufficient effective contact area with the filler, and affecting the waste gas treatment efficiency. By using water to absorb particulate matter in the waste gas, sediment can be generated at the bottom of the box body during a long-term treatment process, and the sediment is not easy to discharge. In view of this, the utility model provides a high-efficiency biological waste gas treatment device. Summary of the Invention

[0005] The purpose of the utility model is to provide a high-efficiency biological waste gas treatment device, which optimizes the flow mode of the waste gas and enables the waste gas to have a high contact efficiency with microorganisms, so as to solve the problems that the waste gas cannot be evenly distributed inside the filler and the effective contact area with the filler is insufficient as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An efficient biological waste gas treatment device, comprising a treatment tank, the treatment tank is composed of a lower tank body, a middle tank body and an upper tank body, an air inlet pipe is arranged on the left side of the lower tank body, a conical cover is arranged inside the lower tank body and above the air inlet pipe, a packing assembly for attaching microorganisms is arranged inside the middle tank body, the packing assembly is composed of a number of interconnected packing mechanisms, the packing mechanism includes a fixing frame and a packing frame, the inside of the packing frame is filled with packing, a transmission rod connected to the fixing frame is arranged at the center of the packing frame, and a gas guiding mechanism for guiding the waste gas is arranged at the inner bottom of the packing frame, a spraying mechanism for spraying microorganisms and nutrient solution is arranged at the top of the upper tank body, and the spraying mechanism includes a nutrient tank and an annular spray pipe.

[0008] As a preferred technical solution, fixing rings are arranged between the lower tank body and the middle tank body and between the middle tank body and the upper tank body for connection and fixation. The bottom end of the lower tank body is of a conical structure, and a sewage discharge pipe is arranged at the bottom of the lower tank body. An air outlet pipe is arranged on the right side of the upper tank body and near the top end.

[0009] As a preferred technical solution, a coarse filter box is installed on the air inlet pipe on the left side of the treatment tank. A diffusion box is arranged at the end of the air inlet pipe and inside the lower tank body. The top of the diffusion box is welded and fixed to the conical cover. A number of uniformly distributed diffusion grooves are formed on the side wall of the diffusion box. A liquid level sensor is installed on the lower tank body, and the liquid level sensor is on the same horizontal plane as the top surface of the conical cover.

[0010] As a preferred technical solution, the fixing frame is fixedly connected to the inner wall of the middle tank body by bolts. A number of uniformly distributed vertical plates are welded and fixed to the bottom of the fixing frame, and two groups of inclined blades are arranged on the vertical plates.

[0011] As a preferred technical solution, the top of the packing frame is rotatably connected to the fixing frame. A movable ring rotatably connected to the fixing frame is arranged on the transmission rod near the top end. A connecting head is arranged at the top of the transmission rod. The bottom of the transmission rod is clamped and matched with the connecting head. A motor is installed at the center of the top of the upper tank body, a driving rod is installed on the output shaft of the motor, and the bottom of the driving rod is clamped and matched with the topmost connecting head.

[0012] As a preferred technical solution, the gas guiding mechanism is composed of a number of annular frames with the same center. A number of obliquely distributed scattering blades are arranged between adjacent annular frames, and the annular frames and the scattering blades are integrally formed.

[0013] As a preferred technical solution, the gas guiding mechanism is composed of a grid frame, and the grid frame includes four groups of fan-shaped grids distributed in an annular array. A number of obliquely distributed gas guiding grids are arranged inside the fan-shaped grids.

[0014] As a preferred technical solution, the nutrient tank is arranged at the top of the upper tank body and near the left end. The annular spray pipe is arranged on the inner top wall of the upper tank body and is communicated with the nutrient tank. A control valve is installed at the top of the annular spray pipe. Electric heating rings are installed on the outer wall of the nutrient tank in parallel distribution, and a temperature sensor is installed at the top of the nutrient tank.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By providing a fixing frame, a packing frame and a gas guiding mechanism, and using the annular frame and the grid frame as the gas guiding mechanism to cooperate, the flow mode of the waste gas is optimized, ensuring that the waste gas is evenly distributed in the packing frame, avoiding local over-flow or insufficiency, and thus increasing the contact opportunity and contact efficiency between the waste gas and the packing in the packing frame, and improving the contact effect on the waste gas.

[0017] 2. By providing a diffusion box and a conical cover, the waste gas can be evenly diffused in the water body, enabling the waste gas to fully contact the water body, effectively removing particulate impurities in the waste gas, and collecting the particulate sediment through the conical lower tank body, facilitating the discharge of the sediment outwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a cross-sectional view of the overall structure of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the air inlet pipe of the present utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the nutrient tank of the present utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the packing mechanism of the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the gas guiding mechanism of the present utility model I;

[0025] Figure 7 It is a schematic diagram of the structure of the gas guiding mechanism of the present utility model II.

[0026] In the figure: 1. treatment tank; 11. lower tank body; 111. sewage discharge pipe; 12. middle tank body; 13. upper tank body; 14. fixing ring; 15. air outlet pipe; 2. air inlet pipe; 21. coarse filter box; 22. diffusion box; 221. diffusion groove; 23. conical cover; 24. liquid level sensor; 3. fixing frame; 31. vertical plate; 32. inclined blade; 4. packing rack; 41. transmission rod; 42. movable ring; 43. connecting head; 44. motor; 45. driving rod; 5. annular rack; 51. scattering blade; 6. grille rack; 61. sector grille; 62. air guiding grid; 7. nutrient tank; 71. annular spray pipe; 72. control valve; 73. electric heating ring; 74. temperature sensor. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] According to the attached Figure 1-7 As shown, the embodiment of the present invention provides an efficient biological method waste gas treatment device, including a treatment tank 1. The treatment tank 1 is composed of a lower tank body 11, a middle tank body 12 and an upper tank body 13. An air inlet pipe 2 is arranged on the left side of the lower tank body 11. A conical cover 23 is arranged above the air inlet pipe 2 inside the lower tank body 11. A packing assembly for attaching microorganisms is arranged inside the middle tank body 12. The packing assembly is composed of a plurality of interconnected packing mechanisms. The packing mechanism includes a fixing frame 3 and a packing rack 4. The inside of the packing rack 4 is filled with packing. A transmission rod 41 connected to the fixing frame 3 is arranged at the center of the packing rack 4. An air guiding mechanism for guiding waste gas is arranged at the inner bottom of the packing rack 4. A spraying mechanism for spraying microorganisms and nutrient solution is arranged at the top of the upper tank body 13. The spraying mechanism includes a nutrient tank 7 and an annular spray pipe 71.

[0029] The waste gas treatment device is composed of a split lower tank body 11, a middle tank body 12 and an upper tank body 13, which is convenient for inspection and maintenance of the interior of the treatment tank 1. When treating the waste gas, the filler is filled into the interior of the filler rack 4. The interior of the nutrient tank 7 is filled with nutrient solution and microorganisms, which can be evenly sprayed into the interior of the treatment tank 1 through the annular nozzle 71, so that the microorganisms are attached to the filler on the inner side of the filler rack 4. When the waste gas enters the interior of the treatment tank 1 through the air intake pipe 2, the conical cover 23 allows the waste gas to fully contact the water body, effectively removing particulate debris in the waste gas. After that, the waste gas flows upward and is degraded by the microorganisms. During the degradation process, the waste gas is guided by the air guide mechanism to ensure that the waste gas is evenly distributed on the inner side of the filler rack 4, thereby improving the contact efficiency between the microorganisms and the waste gas, and then treating the waste gas.

[0030] Furthermore, in order to expand the contact area between the microorganisms and the exhaust gas, the filler filled in the filler frame 4 is composed of a porous material with a high specific surface area, and specifically zeolite or honeycomb activated carbon can be used as the filler.

[0031] A fixing ring 14 is provided between the lower tank body 11 and the middle tank body 12, and between the middle tank body 12 and the upper tank body 13 for connection and fixation. The bottom end of the lower tank body 11 is a conical structure, and a sewage pipe 111 is provided at the bottom of the lower tank body 11. A sewage valve is installed on the sewage pipe 111. When there are a lot of particulate sediments inside the sewage pipe 111, they can be discharged outward through the sewage pipe 111. An air outlet pipe 15 is provided on the right side of the upper tank body 13 and near the top.

[0032] A coarse filter box 21 is installed on the intake pipe 2 and located on the left side of the treatment tank 1. Multiple groups of filter screens are installed inside the coarse filter box 21, which can perform preliminary filtration of large particle pollutants in the exhaust gas. A diffusion box 22 is provided at the end of the intake pipe 2 and located on the inner side of the lower tank body 11. The top of the diffusion box 22 is welded and fixed to the conical cover 23. A number of evenly distributed diffusion grooves 221 are opened on the side wall of the diffusion box 22. A liquid level sensor 24 is installed on the lower tank body 11, and the liquid level sensor 24 and the top surface of the conical cover 23 are on the same horizontal plane.

[0033] The liquid level sensor 24 detects the liquid level inside the lower tank body 11, while ensuring that the water body completely submerges the conical cover 23, preventing the water level from being too high and affecting the filler in the filler rack 4. When the exhaust gas flows to the diffusion box 22 through the air intake pipe 2, the exhaust gas can be evenly diffused along the lower surface of the conical cover 23 through the diffusion groove 221, and the contact effect between the exhaust gas and the water body is improved, thereby efficiently removing particulate matter in the exhaust gas and dissolving part of the exhaust gas. At the same time, the humidity of the exhaust gas is improved. When the exhaust gas contacts the microorganisms, a moist environment can be provided for the microorganisms, facilitating the growth of the microorganisms.

[0034] The fixing frame 3 is fixedly connected to the inner wall of the middle tank body 12 by bolts. A number of uniformly distributed vertical plates 31 are fixedly welded to the bottom of the fixing frame 3, and two groups of inclined blades 32 are arranged on the vertical plates 31.

[0035] The top of the packing frame 4 is rotatably connected to the fixing frame 3. A movable ring 42 rotatably connected to the fixing frame 3 is arranged on the driving rod 41 near the top. A connecting head 43 is arranged at the top of the driving rod 41. The bottom of the driving rod 41 is in snap-fit connection with the connecting head 43. A motor 44 is installed at the center of the top of the upper tank body 13. A driving rod 45 is installed on the output shaft of the motor 44. The bottom of the driving rod 45 is in snap-fit connection with the uppermost connecting head 43.

[0036] When the motor 44 operates, it is transmitted through the driving rod 45, the connecting head 43 and the driving rod 41, which can drive multiple groups of packing frames 4 to rotate simultaneously. The bottom of the packing frame 4 guides the waste gas through the air guiding mechanism to ensure the uniform distribution of the waste gas, improve the contact efficiency between the microorganisms and the waste gas. At the same time, the packing is driven to move during the rotation of the packing frame 4. The vertical plates 31 and the inclined blades 32 cooperate with each other to continuously turn the packing inside the packing frame 4, thus avoiding mutual blockage between the packings.

[0037] As Figure 6 shown, the air guiding mechanism is composed of several annular frames 5 with the same center. A number of obliquely distributed scattering blades 51 are arranged between adjacent annular frames 5. The annular frames 5 and the scattering blades 51 are integrally formed. Through the cooperation of multiple groups of different annular frames 5 and scattering blades 51, the waste gas can be guided and the waste gas at different positions can flow at different speeds, thereby reducing eddy currents and dead zones and improving the waste gas contact efficiency.

[0038] As Figure 7 shown, in order to further enhance the guiding effect of the air guiding mechanism on the waste gas, another air guiding mechanism composed of a grid frame 6 is used in cooperation with the annular frame 5. The grid frame 6 includes four groups of fan-shaped grids 61 distributed in an annular array. A number of obliquely distributed air guiding grids 62 are arranged inside the fan-shaped grids 61. When the packing frame 4 drives the grid frame 6 to rotate, a large area of air can be driven to flow upward through the fan-shaped grids 61, and the waste gas at different positions can flow upward evenly through the uniformly distributed air guiding grids 62, thereby optimizing the flow mode of the waste gas, ensuring the uniform distribution of the waste gas in the packing frame 4, avoiding local over-flow or insufficiency, and further increasing the contact opportunity between the waste gas and the packing in the packing frame 4.

[0039] The nutrient tank 7 is arranged at the top of the upper tank body 13 and near the left end. The annular spray pipe 71 is arranged on the inner top wall of the upper tank body 13 and is communicated with the nutrient tank 7. A control valve 72 is installed at the top of the annular spray pipe 71. Electric heating rings 73 are installed on the outer wall of the nutrient tank 7 in parallel distribution. A temperature sensor 74 is installed at the top of the nutrient tank 7.

[0040] The temperature of the nutrient solution inside the nutrient tank 7 can be monitored and controlled through the temperature sensor 74, which facilitates the heating of the nutrient solution to a temperature suitable for the growth of microorganisms by the electric heating ring 73. When the nutrient solution is sprayed into the interior of the treatment tank 1 through the annular nozzle 71, it can provide a suitable temperature and humidity environment for the microorganisms, facilitating the rapid reproduction of the microorganisms to improve the waste gas treatment efficiency.

[0041] When the high-efficiency biological waste gas treatment device of the present utility model is in use, the fixing frame 3 and the packing frame 4 are installed inside the middle tank body 12, and packing is filled into the packing frame 4. At the same time, the annular frame 5 and the grid frame 6 installed at the bottom of the packing frame 4, which serve as the air guiding mechanism, are distributed at intervals to optimize the gas flow effect inside the treatment tank 1. Then, the nutrient solution and microorganisms are evenly sprayed into the interior of the treatment tank 1 through the annular nozzle 71;

[0042] Furthermore, the waste gas flows downward into the interior of the lower tank body 11 through the air inlet pipe 2. Through the cooperation of the diffusion box 22 and the conical cover 23, the waste gas is evenly diffused in the water body, and the water body removes the particulate matter in the waste gas. Then the waste gas flows upward, and the motor 44 is operated. Through the transmission of the driving rod 45, the connecting head 43, and the transmission rod 41, multiple groups of packing frames 4 are driven to rotate simultaneously. The waste gas is guided through the air guiding mechanism to ensure that the waste gas comes into large-area contact with the microorganisms, improving the waste gas treatment efficiency.

[0043] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A highly efficient biological waste gas treatment device, comprising a treatment tank (1), wherein the treatment tank (1) is composed of a lower tank body (11), a middle tank body (12) and an upper tank body (13), characterized in that: An air intake pipe (2) is arranged on the left side of the lower tank body (11), a conical cover (23) is arranged inside the lower tank body (11) and above the air intake pipe (2), a filler assembly for attaching microorganisms is arranged inside the middle tank body (12), the filler assembly is composed of a plurality of mutually connected filler mechanisms, the filler mechanisms include a fixing frame (3) and a filler frame (4), the inside of the filler frame (4) is filled with filler, a transmission rod (41) connected to the fixing frame (3) is arranged at the center of the filler frame (4), and an air guide mechanism for guiding exhaust gas is arranged at the inner bottom of the filler frame (4); A spray mechanism for spraying microorganisms and nutrient solution is provided on the top of the upper tank body (13), and the spray mechanism comprises a nutrient tank (7) and an annular spray pipe (71).

2. The high-efficiency biological waste gas treatment device according to claim 1 is characterized in that: A fixing ring (14) is provided between the lower tank body (11) and the middle tank body (12), and between the middle tank body (12) and the upper tank body (13) for connection and fixing. The bottom end of the lower tank body (11) is a conical structure, and a sewage pipe (111) is provided at the bottom of the lower tank body (11). An air outlet pipe (15) is provided on the right side of the upper tank body (13) and near the top.

3. The high-efficiency biological waste gas treatment device according to claim 1 is characterized in that: A coarse filter box (21) is installed on the air intake pipe (2) and located on the left side of the treatment tank (1); a diffusion box (22) is provided at the end of the air intake pipe (2) and located on the inner side of the lower tank body (11); the top of the diffusion box (22) is welded and fixed to the conical cover (23); a plurality of evenly distributed diffusion grooves (221) are provided on the side wall of the diffusion box (22); a liquid level sensor (24) is installed on the lower tank body (11); and the liquid level sensor (24) and the top surface of the conical cover (23) are on the same horizontal plane.

4. The high-efficiency biological waste gas treatment device according to claim 1 is characterized in that: The fixing frame (3) is fixedly connected to the inner wall of the middle tank body (12) by means of bolts, and a plurality of evenly distributed vertical plates (31) are welded and fixed to the bottom of the fixing frame (3), and two groups of oblique leaves (32) are arranged on the vertical plates (31).

5. The high-efficiency biological waste gas treatment device according to claim 4 is characterized in that: The top of the filling frame (4) is rotatably connected to the fixing frame (3); a movable ring (42) rotatably connected to the fixing frame (3) is provided on the transmission rod (41) and near the top; a connecting head (43) is provided on the top of the transmission rod (41); the bottom of the transmission rod (41) is snap-fitted with the connecting head (43); a motor (44) is installed at the top center of the upper tank body (13); a driving rod (45) is installed on the output shaft of the motor (44); the bottom of the driving rod (45) is snap-fitted with the uppermost connecting head (43).

6. The high-efficiency biological waste gas treatment device according to claim 1 is characterized in that: The air guide mechanism is composed of a plurality of annular frames (5) with the same center, a plurality of obliquely distributed scattering leaves (51) are arranged between adjacent annular frames (5), and the annular frames (5) and the scattering leaves (51) are integrally formed.

7. The high-efficiency biological waste gas treatment device according to claim 1 is characterized in that: The air guide mechanism is composed of a grid frame (6), the grid frame (6) comprising four groups of fan-shaped grids (61) distributed in a ring array, and a plurality of obliquely distributed air guide grids (62) are arranged inside the fan-shaped grids (61).

8. The high-efficiency biological waste gas treatment device according to claim 1 is characterized by: The nutrient tank (7) is arranged at the top of the upper tank body (13) and near the left end. The annular nozzle (71) is arranged on the inner top wall of the upper tank body (13) and is connected to the nutrient tank (7). A control valve (72) is installed on the top of the annular nozzle (71). Electric heating rings (73) arranged in parallel with each other are installed on the outer wall of the nutrient tank (7). A temperature sensor (74) is installed on the top of the nutrient tank (7).

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