A multi-stage filtration exhaust gas purification device

Abstract

This utility model discloses a multi-stage filtration-type exhaust gas purification device, including: a cyclone filter, with its lower surface outlet connected to a top cover, the top cover mounted on the upper surface of a storage tank, and a first air pipe connected to the upper surface outlet of the cyclone filter. The other end of the first air pipe is connected to three sets of connecting boxes, each containing a slidably installed filter mechanism. The three filter mechanisms are sequentially filled with a polyester filter screen, activated carbon, and a glass fiber filter screen. This application, through the design of the filter mechanism, allows for filter replacement by simply lifting and rotating the cover, making the filter material replacement process extremely convenient. Operators can complete the filter replacement with simple operations, without the need for complex tools or procedures. This design makes daily maintenance more economical.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically a multi-stage filtration exhaust gas purification device. Background Technology

[0002] Currently, industrial waste gas is a major source of pollution. The various toxic and harmful gases contained in industrial waste gas, such as sulfur dioxide and hydrogen sulfide, pollute the atmospheric environment, and some particulate matter also causes serious air pollution to the public environment. As one of the main sources of air pollution, industrial waste gas has a great destructive effect on the human living environment. Therefore, it is of great practical significance to effectively treat industrial waste gas so that it meets the appropriate emission requirements before entering the atmospheric environment.

[0003] For example, the national authorized patent announcement number CN204619626U discloses a multi-stage filtration-type waste gas purification device, which includes a main body. The main body includes a sedimentation chamber, a purification chamber, an air inlet, and an air outlet. The sedimentation chamber is located below the main body, and the air inlets are symmetrically located at both ends of the sedimentation chamber. Multiple uniformly arranged dust baffles are installed inside the sedimentation chamber. The top of the sedimentation chamber is connected to the bottom of the purification chamber through an air inlet pipe. A liquid storage tank is set at the bottom of the purification chamber. A liquid filling port is set on one side of the liquid storage tank. The left and right sides of the liquid storage tank are respectively connected to conduits. The conduits extend from the outer wall of the purification chamber and are connected to multiple spray heads installed inside the purification chamber. A first filter plate is set above the liquid storage tank. Oil-water separators are set at both ends of the first filter plate. A second filter plate is set above the first filter plate. An activated carbon fiber layer is set above the spray pipe of the main spray. A buffer device is set between the sedimentation chamber and the purification chamber. A support is set on the outer wall of the purification chamber. This utility model has the advantages of good purification effect and convenient use.

[0004] However, the aforementioned multi-stage filtration exhaust gas purification device requires periodic replacement of the filter element after filtering the exhaust gas for a long time. The process of replacing the filter element requires disassembling multiple parts, which makes it inconvenient to replace the filter element. This design increases the complexity of the filter element replacement operation and reduces the convenience of replacement. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-stage filtration exhaust gas purification device to solve the problem mentioned in the background art that after long-term filtration of exhaust gas, the filter element needs to be replaced regularly. In the process of replacing the filter element, multiple parts need to be disassembled, which makes it inconvenient to replace the filter element.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-stage filtration-type exhaust gas purification device includes: a cyclone filter, wherein the outlet on the lower surface of the cyclone filter is connected to a top cover, the top cover is installed on the upper surface of a storage tank, and the outlet on the upper surface of the cyclone filter is connected to a first air pipe, the other end of the first air pipe being connected to three sets of connecting boxes, each of the three sets of connecting boxes having a filter mechanism slidably installed inside, and each of the three sets of filter mechanisms being sequentially filled with a polyester filter screen, activated carbon, and a glass fiber filter screen.

[0008] Preferably, a second air pipe is connected to the other end of the connecting box, and the other end of the second air pipe extends into the water tank. The water tank is placed at one end of the connecting box, and an air hole is opened on the outer surface of the second air pipe located inside the water tank.

[0009] Preferably, the filter mechanism includes an insert plate that can be inserted into a mounting slot, which is located on the upper surface of the connecting box. One end of the insert plate has a vent, and a storage cylinder is fixedly installed inside the vent. A cover is threaded onto one end of the storage cylinder.

[0010] Preferably, a lifting handle is fixedly installed on the upper surface of the insert plate.

[0011] Preferably, both the storage cylinder and the cover have ventilation holes at one end, so that the insert plate is connected to the mounting groove through the storage cylinder and the cover in the ventilation hole, and the mounting groove is connected to the first air pipe.

[0012] Preferably, the storage cylinders inside the three sets of connecting box inserts are respectively filled with polyester filter screen, activated carbon and glass fiber filter screen, for the exhaust gas to pass through in sequence.

[0013] Preferably, each set of mounting slots can accommodate three sets of insert plates, and each set of insert plates has a sealing ring fixedly installed on both sides, so that the three sets of insert plates inserted in the mounting slots can be sealed by the sealing rings on both sides, so that the exhaust gas can only be discharged through the storage cylinder in the vent.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Through the design of a cyclone filter, storage tank, connecting box, water tank, and filtration mechanism, the exhaust gas is filtered by introducing it into the cyclone filter. The cyclone filter initially filters out particulate matter in the exhaust gas and stores it in the storage tank connected at the lower end. The filtered exhaust gas then enters the connecting box through the first air pipe, allowing it to pass through the filtration mechanism in the connecting box in sequence. The three sets of filtration mechanisms in the connecting box are sequentially filled with polyester filter screen, activated carbon, and glass fiber filter screen. This process ensures that the exhaust gas first passes through the polyester filter screen to remove larger particles, then through the activated carbon to remove organic gases and odors, and finally through the glass fiber filter screen to ensure that even smaller particles are removed. Particulate matter is captured, achieving triple filtration for a more comprehensive air purification effect. The exhaust gas, after triple filtration, is discharged from the connecting box into the second air pipe, which then guides the triple-filtered exhaust gas into the water tank. When the exhaust gas is injected into the water, bubbles are formed. As the bubbles rise, they come into full contact with the water, which physically captures some solid particles in the air, such as dust and bacteria, because solid particles do not easily rise with the bubbles in water and are thus removed. Some water-soluble gases, such as ammonia and sulfur dioxide, can also dissolve in the water, further removing pollutants and greatly improving the exhaust gas purification effect, ensuring the purity of the emitted exhaust gas.

[0016] 2. The design, including the insert plate, pull handle, vent, storage cylinder, and cover, allows exhaust gas to be introduced into the connecting box. The exhaust gas passes through the connecting box into the vent of the insert plate, and then into the storage cylinder within the vent. The three storage cylinders in the connecting box respectively store polyester filters, activated carbon, and glass fiber filters, thus performing three-stage filtration of the exhaust gas. When the filter material in the storage cylinder needs to be replaced after long-term filtration, the operator simply needs to hold the outer surface of the pull handle and pull the insert plate out of the mounting slot in the connecting box. Then, the staff only needs to unscrew the cover of the storage cylinder to empty the used filter material, fill it with new filter material, and screw the cover back on. Then, the staff can reinsert the insert plate into the installation slot, thus completing the filter replacement operation. The process only requires the staff to lift and rotate the cover, making the filter material replacement step very convenient. The staff can complete the filter replacement with simple operations without complicated tools or procedures. This design makes daily maintenance more economical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the multi-stage filtration waste gas purification device of this utility model;

[0018] Figure 2This is a structural schematic diagram of the cyclone filter and water tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection box and mounting groove of this utility model;

[0020] Figure 4 This is a schematic diagram of the filtration mechanism of this utility model.

[0021] In the diagram: 1. Cyclone filter; 101. Top cover; 102. Storage tank; 103. Connecting box; 104. Second air pipe; 105. Water tank; 106. First air pipe; 107. Mounting slot; 2. Filtering mechanism; 201. Insert plate; 202. Lifting handle; 203. Sealing ring; 204. Vent; 205. Storage tank; 206. Cover. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This embodiment provides the following technical solution:

[0024] like Figures 1-3 As shown, a multi-stage filtration-type exhaust gas purification device includes: a cyclone filter 1, the outlet of the lower surface of the cyclone filter 1 is connected to the top cover 101, the top cover 101 is installed on the upper surface of the storage tank 102, the air outlet of the upper surface of the cyclone filter 1 is connected to the first air pipe 106, the other end of the first air pipe 106 is connected to three sets of connecting boxes 103, and each of the three sets of connecting boxes 103 is slidably installed with a filter mechanism 2, and the three sets of filter mechanisms 2 are sequentially filled with a polyester filter screen, activated carbon and glass fiber filter screen.

[0025] The other end of the connecting box 103 is connected to a second air pipe 104, and the other end of the second air pipe 104 extends into the water tank 105. The water tank 105 is placed at one end of the connecting box 103, and the outer surface of the second air pipe 104 located in the water tank 105 has air holes.

[0026] Through the design of the cyclone filter 1, storage tank 102, connecting box 103, water tank 105, and filtration mechanism 2, when filtering exhaust gas, the exhaust gas is introduced into the cyclone filter 1, which initially filters the particulate matter in the exhaust gas and stores it in the storage tank 102 connected at the lower end. The filtered exhaust gas then enters the connecting box 103 through the first air pipe 106, allowing the exhaust gas to pass through the filtration mechanism 2 in the connecting box 103 in sequence. The three sets of filtration mechanisms 2 in the connecting box 103 are sequentially filled with polyester filter screen, activated carbon, and glass fiber filter screen. Thus, the exhaust gas first passes through the polyester filter screen to remove larger particulate matter, then through the activated carbon to remove organic gases and odors, and finally through the glass fiber filter screen. The filter ensures that smaller particles are captured, thus achieving triple filtration and providing a more comprehensive air purification effect. The exhaust gas that has passed through triple filtration is discharged from the connecting box 103 into the second air pipe 104, which then guides the triple-filtered exhaust gas into the water tank 105. When the exhaust gas is injected into the water, bubbles are formed. As the bubbles rise, they come into full contact with the water, which can physically capture some solid particles in the air, such as dust and bacteria, because solid particles do not easily rise with the bubbles in water and are thus removed. Some water-soluble gases, such as ammonia and sulfur dioxide, can also dissolve in the water, further removing pollutants and greatly improving the exhaust gas purification effect, ensuring the purity of the emitted exhaust gas.

[0027] like Figure 4 As shown, the filter mechanism 2 includes an insert plate 201, which can be inserted into the mounting groove 107. The mounting groove 107 is opened on the upper surface of the connecting box 103. One end of the insert plate 201 is provided with an air vent 204. A storage cylinder 205 is fixedly installed in the air vent 204. A cover 206 is threaded onto one end of the storage cylinder 205.

[0028] A lifting handle 202 is fixedly installed on the upper surface of the insert plate 201.

[0029] Both the storage cylinder 205 and the cover 206 have ventilation holes at one end, so that the insert plate 201 can be connected to the mounting groove 107 through the storage cylinder 205 and the cover 206 in the ventilation port 204, and the mounting groove 107 is connected to the first air pipe 106.

[0030] The storage cylinders 205 inside the three sets of connecting boxes 103 and insert plates 201 are respectively filled with polyester filter screen, activated carbon and glass fiber filter screen, for the exhaust gas to pass through in sequence.

[0031] Three sets of insert plates 201 can be inserted into each set of mounting slots 107. Each set of insert plates 201 has a sealing ring 203 fixedly installed on both sides, so that the three sets of insert plates 201 inserted into the mounting slots 107 can be sealed by the sealing rings 203 on both sides, so that the exhaust gas can only be discharged through the storage cylinder 205 in the vent 204.

[0032] The design of the insert plate 201, lifting handle 202, vent 204, storage cylinder 205, and cover 206 allows exhaust gas to be introduced into the connecting box 103. The exhaust gas then enters the vent 204 of the insert plate 201 through the connecting box 103, and subsequently enters the storage cylinder 205 within the vent 204. The storage cylinders 205 in the three sets of connecting boxes 103 respectively store polyester filters, activated carbon, and glass fiber filters, thus enabling three-stage filtration of the exhaust gas. When the filter material in the storage cylinder 205 needs to be replaced after long-term filtration, the operator simply holds the outer surface of the lifting handle 202 and removes the insert plate 201 from the connecting box. The filter element is removed from the mounting slot 107 of the housing 103. Then, the operator simply needs to unscrew the cover 206 of the storage cylinder 205 to empty the used filter material from the storage cylinder 205, fill it with new filter material, and screw the cover 206 back on. The operator can then reinsert the insert plate 201 into the mounting slot 107, thus completing the filter element replacement operation. The process only requires the operator to lift and rotate the cover 206, making the filter material replacement step very convenient. The operator can complete the filter element replacement with simple operations without complicated tools or procedures. This design makes daily maintenance more economical.

[0033] Based on the above technical solution, the working steps of this solution are summarized as follows: When filtering exhaust gas, the exhaust gas can be introduced into the cyclone filter 1. The cyclone filter 1 will initially filter the particulate matter in the exhaust gas and store it in the storage tank 102 connected at the lower end. The filtered exhaust gas will then enter the connecting box 103 through the first air pipe 106, and then enter the air inlet 204 of the insert plate 201 through the connecting box 103. The exhaust gas will then enter the storage tank 205 in the air inlet 204 through the air inlet 204. The storage tanks 205 in the three sets of connecting boxes 103 sequentially store polyester filter screen, activated carbon and glass fiber filter screen. Thus, the exhaust gas first passes through the polyester filter screen to remove larger particulate matter, and then passes through the activated carbon to remove smaller particulate matter. The system filters out air fumes and odors, and finally uses a glass fiber filter to ensure that even smaller particles are captured, thus achieving triple filtration and providing a more comprehensive air purification effect. The exhaust gas after triple filtration is discharged from the connecting box 103 into the second air pipe 104, which then guides the triple-filtered exhaust gas into the water tank 105. When the exhaust gas is injected into the water, bubbles are formed. As the bubbles rise, they come into full contact with the water, which can physically capture some solid particles in the air, such as dust and bacteria, because solid particles do not easily rise with the bubbles in water and are thus removed. Some water-soluble gases, such as ammonia and sulfur dioxide, can also dissolve in water, further removing pollutants and greatly improving the exhaust gas purification effect, ensuring the purity of the emitted exhaust gas.

[0034] When the filter material in the storage cylinder 205 needs to be replaced after long-term filtration of exhaust gas, the operator only needs to hold the outer surface of the lifting handle 202 to pull the insert plate 201 out from the mounting slot 107 of the connecting box 103. Then, the operator only needs to unscrew the cover 206 of the storage cylinder 205, so that the operator can pour out the used filter material in the storage cylinder 205, fill in the new filter material, and screw the cover 206 back on. Then, the operator can insert the insert plate 201 back into the mounting slot 107, thus realizing the filter element replacement operation.

[0035] In summary, the process of replacing the filter element in this device only requires the operator to lift and rotate the cover 206, making the replacement of the filter material very convenient. The operator only needs to perform simple operations to complete the replacement of the filter element without complicated tools or procedures. This design makes daily maintenance more economical and affordable.

[0036] All parts not described in this utility model are the same as or can be implemented using existing technology. Although embodiments of this utility model 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 this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtration-type waste gas purification device, characterized in that, include: Cyclone filter (1), the outlet of the lower surface of the cyclone filter (1) is connected to the top cover (101), the top cover (101) is installed on the upper surface of the storage tank (102), the air outlet of the upper surface of the cyclone filter (1) is connected to the first air pipe (106), the other end of the first air pipe (106) is connected to three sets of connecting boxes (103), each of the three sets of connecting boxes (103) is slidably installed with a filter mechanism (2), and each of the three sets of filter mechanisms (2) is sequentially filled with a polyester filter, activated carbon and a glass fiber filter.

2. The multi-stage filtration-type waste gas purification device according to claim 1, characterized in that: The other end of the connecting box (103) is connected to a second air pipe (104), and the other end of the second air pipe (104) extends into the water tank (105). The water tank (105) is placed at one end of the connecting box (103), and the outer surface of the second air pipe (104) located inside the water tank (105) has an air hole.

3. The multi-stage filtration-type waste gas purification device according to claim 1, characterized in that: The filter mechanism (2) includes an insert plate (201) that can be inserted into a mounting groove (107). The mounting groove (107) is located on the upper surface of the connecting box (103). One end of the insert plate (201) has a vent (204). A storage cylinder (205) is fixedly installed in the vent (204). A cover (206) is threaded onto one end of the storage cylinder (205).

4. The multi-stage filtration-type waste gas purification device according to claim 3, characterized in that: A lifting handle (202) is fixedly installed on the upper surface of the insert plate (201).

5. The multi-stage filtration-type waste gas purification device according to claim 3, characterized in that: Both the storage cylinder (205) and the cover (206) have ventilation holes at one end, so that the insert plate (201) can be connected to the mounting groove (107) through the storage cylinder (205) and the cover (206) in the ventilation port (204), and the mounting groove (107) is connected to the first air pipe (106).

6. The multi-stage filtration-type waste gas purification device according to claim 3, characterized in that: The storage cylinders (205) inside the three sets of connecting boxes (103) insert plates (201) are respectively filled with polyester filter screen, activated carbon and glass fiber filter screen, so that the exhaust gas can pass through in sequence.

7. A multi-stage filtration-type waste gas purification device according to claim 5 or 6, characterized in that: Each set of mounting slots (107) can accommodate three sets of insert plates (201). Each set of insert plates (201) has a sealing ring (203) fixedly installed on both sides, so that the three sets of insert plates (201) inserted in the mounting slots (107) can be sealed by the sealing rings (203) on both sides, so that the exhaust gas can only be discharged through the storage cylinder (205) in the vent (204).

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