A volatile organic waste gas biological filtration device

Abstract

The utility model discloses a volatile organic waste gas biological filter device relates to filter equipment technical field, this biological filter device includes device main frame, and device main frame one side is provided with gas injection fan, and the top intercommunication of device main frame is provided with top cover frame, and the upper end intercommunication of top cover frame is provided with exhaust top seat, still include: built -in water pool, and it is integrally formed setting in device main frame bottom position, and the exhaust end of gas injection fan is provided with the flow guide air pipe, and the one end of flow guide air pipe penetrates device main frame and inserts the inside of built -in water pool, and inserts the groove, and it sets up the position on the top of built -in water pool, and inserts the groove and is provided with three, solved the existing biological filter device through the setting waste gas pre -moistening mechanism and assist organic waste gas to filter processing, but the biological filter is short of effective insurance agency in the process of filtering waste gas, leads to the gas of discharging and is easy to remain the problem of volatile harmful substance.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a biological filtration device for volatile organic waste gas. Background Technology

[0002] Volatile organic compounds (VOCs) are organic compounds that are easily volatilized at room temperature. These compounds are widely present in industrial production, daily life, and the natural environment. Some VOCs are harmful to the environment and human health and are one of the important sources of air pollution. VOCs need to be filtered by biological filtration devices when they are treated.

[0003] For example, the announcement number CN206082160U (named "A High-Efficiency Organic Waste Gas Biological Filtration Device") includes a waste gas pre-humidification device and a biological filter tower. The inlet of the waste gas pre-humidification device is connected to an organic waste gas conveying pipeline, and the outlet of the waste gas pre-humidification device is connected to the top inlet of the biological filter tower via a pipeline. The biological filter tower is equipped with a gas distributor, an active packing layer, and an inert packing layer. The gas distributor is located at the top of the tower, and the active packing layer and the inert packing layer are arranged alternately below the gas distributor. The inert packing layer is located at the bottom of the tower, and the active packing layer is located at the top. The bottom outlet pipeline of the biological filter tower is connected to a return pipeline and an exhaust pipeline. The other end of the return pipeline is connected to the organic waste gas conveying pipeline, and a return fan is installed on the return pipeline. The exhaust pipeline directly discharges the purified gas. By installing the waste gas pre-humidification device before the biological filter tower, no additional spray facilities are needed in the biological filter tower; only the waste gas needs to be pre-humidified.

[0004] The aforementioned biological filtration device uses a pre-humidification mechanism to assist in the filtration of organic waste gas. However, the biological filtration process lacks an effective safety mechanism, which leads to the problem that volatile harmful substances are easily left in the discharged gas. Therefore, we provide a biological filtration device for volatile organic waste gas. Utility Model Content

[0005] The purpose of this invention is to provide a biological filtration device for volatile organic waste gas, in order to solve the problem mentioned in the background art that existing biological filtration devices use a waste gas pre-humidification mechanism to assist in the filtration of organic waste gas, but lack an effective safety mechanism during the filtration process, resulting in the easy retention of volatile harmful substances in the discharged gas.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a volatile organic waste gas biological filtration device, comprising a main frame of the device, an air injection fan provided on one side of the main frame of the device, a top cover frame connected to the top of the main frame of the device, and an exhaust top seat connected to the upper end of the top cover frame.

[0007] Also includes:

[0008] The built-in water tank is integrally formed and located at the bottom of the main frame of the device, and a guide pipe is provided on the exhaust end of the air injection blower. One end of the guide pipe passes through the main frame of the device and is inserted into the interior of the built-in water tank.

[0009] The insert slots are located above the built-in water tank. There are three insert slots, and all three insert slots are integral with the main frame of the device. Each insert slot has a carrier frame installed inside it. The three carrier frames are respectively equipped with a microporous filter, a microbial filter layer and an activated carbon filter.

[0010] A volatile exhaust gas alarm is installed at the front end of the exhaust top seat, and a return pump is installed at the rear end of the exhaust top seat. The inlet and outlet ends of the return pump are respectively equipped with a suction pipe and a return pipe, which are connected to the exhaust top seat and the main frame of the device.

[0011] Preferably, a front end block is welded to the front end face of each of the three carrier frames, and a fastening bolt is provided at the connection position between the front end block and the main frame of the device. The three carrier frames are fixedly connected to the main frame of the device by the fastening bolt.

[0012] Preferably, each of the three front end blocks is provided with a handle bar on its outer wall, and the handle bar is welded to the front end block.

[0013] Preferably, a water injection conduit is provided on the outer wall of the other side of the main frame of the device. One end of the water injection conduit passes through the main frame of the device and is connected to the built-in water tank. A water inlet valve is provided at the end of the water injection conduit.

[0014] Preferably, the top of the exhaust top seat is provided with an exhaust pipe, which is connected to the interior of the exhaust top seat.

[0015] Preferably, a drain valve is provided at the center of the bottom of the built-in water tank, and the drain valve is connected to the interior of the built-in water tank.

[0016] Preferably, two support rods are welded to the outer walls of both sides of the main frame of the device, and a guide air pipe is welded between two adjacent support rods.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention utilizes a microporous filter, a microbial filter layer, and an activated carbon filter for bio-adsorption filtration before the exhaust gas is discharged into the exhaust top seat. A volatile organic compound (VOC) alarm detects the gas inside the exhaust top seat. If the detected VOC levels still exceed the standard, the alarm sounds. At this point, a return pump is activated, drawing the gas out of the exhaust top seat through a suction pipe and returning it to the main frame of the device via a return pipe. This process continues until the gas reaching the exhaust top seat no longer triggers the VOC alarm. This improves the cleanliness of the bio-filtration of VOCs and overcomes the problem of existing bio-filtration devices, which use a pre-humidification mechanism to assist in filtering organic waste gas. However, existing bio-filtration devices often lack effective safety mechanisms during the filtration process, leading to residual VOCs in the discharged gas. Attached Figure Description

[0019] Figure 1 This is a front view of the volatile organic waste gas biological filtration device of this utility model;

[0020] Figure 2 This is a bottom view of the volatile organic waste gas biological filtration device of this utility model;

[0021] Figure 3 This is a top view of the volatile organic waste gas biological filtration device of this utility model;

[0022] Figure 4 This is a cross-sectional view of the internal structure of the volatile organic waste gas biological filtration device of this utility model.

[0023] In the diagram: 1. Main frame of the device; 2. Support rod; 3. Reinforcing connecting rod; 4. Air injection fan; 5. Guide air pipe; 6. Insert slot; 7. Carrier frame; 8. Front end block; 9. Handle rod; 10. Fastening bolt; 11. Top cover frame; 12. Exhaust top seat; 13. Return pump; 14. Exhaust pipe; 15. Return pipe; 16. Volatile exhaust gas alarm; 17. Exhaust pipe; 18. Built-in water tank; 19. Drain valve; 20. Water injection pipe; 21. Water inlet valve; 22. Microporous filter screen; 23. Microbial filter media layer; 24. Activated carbon filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-4An embodiment of this utility model is provided: a volatile organic waste gas biological filtration device, including a main frame 1, an air injection fan 4 is provided on one side of the main frame 1, a top cover frame 11 is connected to the top of the main frame 1, and an exhaust top seat 12 is connected to the upper end of the top cover frame 11.

[0026] Also includes:

[0027] The built-in water tank 18 is integrally formed and set at the bottom of the main frame 1 of the device, and the exhaust end of the air injection blower 4 is provided with a guide pipe 5. One end of the guide pipe 5 passes through the main frame 1 of the device and is inserted into the interior of the built-in water tank 18.

[0028] Insertion slot 6 is located above the built-in water tank 18. There are three insertion slots 6. All three insertion slots 6 are integral with the main frame 1 of the device. Each of the three insertion slots 6 has a carrier frame 7 inserted into it. The three carrier frames 7 are respectively provided with a microporous filter screen 22, a microbial filter layer 23 and an activated carbon filter screen 24.

[0029] A volatile exhaust gas alarm 16 is installed at the front end of the exhaust top seat 12, and a return pump 13 is installed at the rear end of the exhaust top seat 12. The inlet and outlet ends of the return pump 13 are respectively provided with a suction pipe 14 and a return pipe 15. The suction pipe 14 and the return pipe 15 are respectively connected to the exhaust top seat 12 and the main frame 1 of the device.

[0030] In use, the volatile organic compounds (VOCs) requiring filtration are drawn in by the air injection fan 4 and injected into the built-in water tank 18 through the guide pipe 5. The built-in water tank 18 is pre-filled with clean water through the water injection pipe 20. After the VOCs enter the built-in water tank 18, the waste gas is discharged from the surface of the built-in water tank 18 in the form of bubbles. Most of the pollutants are suppressed in the clean water inside the built-in water tank 18, achieving the purpose of preliminary filtration of the VOCs. Then, the waste gas undergoes biological adsorption filtration through the microporous filter screen 22, the microbial filter layer 23, and the activated carbon filter screen 24 before being discharged into the interior of the exhaust top seat 12. The gas inside the exhaust top seat 12 is detected by the volatile waste gas alarm 16. When the volatile harmful substances are still detected to be exceeding the standard, the volatile waste gas alarm 16 will sound an alarm. The model of the volatile waste gas alarm 16 is SGA-500. At this time, the return pump 13 is turned on, and the gas inside the exhaust top seat 12 is extracted through the extraction pipe 14 and injected back into the main frame 1 of the device through the return pipe 15. It then undergoes secondary bio-adsorption filtration treatment until the gas reaching the exhaust top seat 12 will not trigger the alarm of the volatile waste gas alarm 16. Finally, the treated gas is discharged into the atmosphere through the exhaust pipe 17.

[0031] Please see Figure 1Each of the three carrier frames 7 has a front end block 8 welded to its front face. Fastening bolts 10 are installed at the connection points between the front end blocks 8 and the main frame 1 of the device. The three carrier frames 7 are fixedly connected to the main frame 1 of the device by the fastening bolts 10. The front end blocks 8 welded to the front faces of the three carrier frames 7 facilitate the installation and fixing of the carrier frames 7 to the main frame 1 of the device. Please refer to [link / reference]. Figure 1 Each of the three front end blocks 8 has a handle 9 on its outer wall. The handle 9 is welded to the front end block 8. The handle 9 on the outer wall of each of the three front end blocks 8 serves to facilitate the pulling and unloading of the loading seat frame 7. Please refer to [link / reference]. Figure 3 A water injection conduit 20 is installed on the outer wall of the other side of the main frame 1 of the device. One end of the water injection conduit 20 passes through the main frame 1 and is connected to the built-in water tank 18. A water inlet valve 21 is installed at the end of the water injection conduit 20. The water injection conduit 20 installed on the outer wall of the other side of the main frame 1 of the device facilitates the injection of water from the outside of the main frame 1 into the built-in water tank 18. Please refer to [link / reference]. Figure 1 An exhaust pipe 17 is provided on the top of the exhaust top seat 12. The exhaust pipe 17 is connected to the interior of the exhaust top seat 12. The exhaust pipe 17 on the top of the exhaust top seat 12 serves to discharge the gas after biological filtration. Please refer to [link / reference]. Figure 2 A drain valve 19 is located at the center of the bottom of the built-in water tank 18. The drain valve 19 is connected to the interior of the built-in water tank 18. The drain valve 19 located at the center of the bottom of the built-in water tank 18 facilitates the discharge of sewage from the built-in water tank 18. Please refer to [link / reference]. Figure 1 Two support rods 2 are welded to the outer walls on both sides of the main frame 1 of the device. A guide gas pipe 5 is welded between two adjacent support rods 2. The two support rods 2 welded to the outer walls on both sides of the main frame 1 of the device serve to support the main frame 1 of the device.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A volatile organic waste gas biological filtration device, comprising a main frame (1), an air injection fan (4) is provided on one side of the main frame (1), a top cover frame (11) is connected to the top of the main frame (1), and an exhaust top seat (12) is connected to the upper end of the top cover frame (11). Its features are: Also includes: The built-in water tank (18) is integrally formed and located at the bottom of the main frame (1) of the device, and a guide pipe (5) is provided on the exhaust end of the air injection fan (4). One end of the guide pipe (5) passes through the main frame (1) of the device and is inserted into the interior of the built-in water tank (18). Insertion slots (6) are located above the built-in water tank (18). There are three insertion slots (6). All three insertion slots (6) are integral with the main frame (1) of the device. Each of the three insertion slots (6) has a carrier frame (7) installed inside. The three carrier frames (7) are respectively provided with a microporous filter (22), a microbial filter layer (23) and an activated carbon filter (24). A volatile exhaust gas alarm (16) is installed at the front end of the exhaust top seat (12), and a return pump (13) is installed at the rear end of the exhaust top seat (12). The inlet and outlet ends of the return pump (13) are respectively provided with a suction pipe (14) and a return pipe (15). The suction pipe (14) and the return pipe (15) are respectively connected to the exhaust top seat (12) and the main frame (1) of the device.

2. The biological filtration device for volatile organic waste gas according to claim 1, characterized in that: Each of the three carrier frames (7) has a front end block (8) welded on its front end face. A fastening bolt (10) is provided at the connection position between the front end block (8) and the main frame (1) of the device. The three carrier frames (7) are fixedly connected to the main frame (1) of the device by the fastening bolt (10).

3. The biological filtration device for volatile organic waste gas according to claim 2, characterized in that: Each of the three front end blocks (8) is provided with a handle (9) on its outer wall, and the handle (9) is welded to the front end block (8).

4. The biological filtration device for volatile organic waste gas according to claim 1, characterized in that: A water injection conduit (20) is provided on the outer wall of the other side of the main frame (1) of the device. One end of the water injection conduit (20) passes through the main frame (1) of the device and is connected to the built-in water tank (18). A water inlet valve (21) is provided at the end of the water injection conduit (20).

5. The biological filtration device for volatile organic waste gas according to claim 1, characterized in that: The top of the exhaust top seat (12) is provided with an exhaust pipe (17), and the exhaust pipe (17) is connected to the interior of the exhaust top seat (12).

6. The biological filtration device for volatile organic waste gas according to claim 1, characterized in that: A drain valve (19) is provided at the bottom center of the built-in water tank (18), and the drain valve (19) is connected to the interior of the built-in water tank (18).

7. The biological filtration device for volatile organic waste gas according to claim 1, characterized in that: Two support rods (2) are welded to the outer walls on both sides of the main frame (1) of the device, and a guide air pipe (5) is welded between two adjacent support rods (2).

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