Filtering device for exhaust gas treatment

Abstract

The utility model relates to exhaust treatment device technical field especially relates to a filter device for exhaust treatment, including support and filter box, the support is fixedly installed with filter box, the filter box lower part stores the clean water for use, still include the air inlet pipe, the filter box front side is connected with a plurality of air inlet pipes for leading into the filtered exhaust gas, the filter box is rotatably arranged filter drum, be provided with the drive piece that drives filter drum rotation on the filter box, the air inlet pipe is led into filter drum inside area, the clean water for use in the filter box submerges filter drum lower part, the filter box top is connected with a plurality of exhaust pipes for discharging filtered gas, the filter box bottom is provided with sewage purification tank, the utility model discloses through the filter drum of rotation to the exhaust gas carries out the filtration, utilizes the clean water for use in bottom in the filter drum rotation process automatic cleaning adhered in its inner wall pollutant simultaneously, realizes continuous, efficient exhaust gas purification and equipment self-cleaning function.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment devices, and in particular to a filtration device for waste gas treatment. Background Technology

[0002] With the accelerating pace of industrialization and increasingly stringent environmental regulations, the hazards of waste gases generated during industrial production to the environment and human health are becoming increasingly prominent. These waste gases typically contain dust particles, harmful gases, oil mist, and odorous substances. If discharged directly into the atmosphere without effective treatment, they can easily cause environmental problems such as air pollution, acid rain, and photochemical smog. Therefore, developing efficient, stable, and cost-effective waste gas treatment technologies and equipment has become a crucial issue in the field of environmental engineering.

[0003] However, existing waste gas filtration devices mostly employ fixed filter screens or filter bags, which reveal numerous shortcomings in actual operation. First, the filter media is prone to clogging due to dust accumulation or the adhesion of high-humidity, high-viscosity pollutants, leading to a rapid increase in system pressure drop and a significant decrease in filtration efficiency. Simultaneously, dust removal is difficult, hindering continuous automated operation and requiring frequent shutdowns for maintenance, thus impacting production efficiency. Especially under complex conditions of high humidity, high viscosity, or high concentration of pollutants, the performance degradation of traditional filtration devices is more pronounced, significantly shortening equipment lifespan and failing to meet the demands of modern industry for efficient, low-consumption, and intelligent environmental protection equipment. Therefore, it is necessary to design a waste gas treatment filtration device to address the shortcomings of existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a filtration device for waste gas treatment.

[0005] The technical solution of this utility model is: a filtration device for waste gas treatment, including a support and a filter box. The filter box is fixedly installed on the support. The filter box is a box with a spindle-shaped cross-section. The lower part of the filter box stores cleaning water. It also includes an air inlet pipe, a filter cylinder, an exhaust pipe, a wastewater purification tank, a wastewater filter layer, a liquid extraction pipe, a liquid extraction pump, and a return pipe. Multiple air inlet pipes for introducing waste gas to be filtered are connected to the front side of the filter box. The filter cylinder is rotatably installed inside the filter box. A driving component for driving the filter cylinder to rotate is provided on the filter box. The air inlet pipes enter the inner area of ​​the filter cylinder. The filter cylinder is used to filter waste gas. The cleaning water in the filter box submerges... The bottom of the filter cartridge and the top of the filter box are connected to multiple exhaust pipes for discharging filtered gas. A wastewater purification tank is set at the bottom of the filter box, and a wastewater filtration layer for purifying wastewater is installed inside the wastewater purification tank. One side of the wastewater purification tank is connected to the filter box through a liquid extraction pipe. The inlet of the liquid extraction pipe is located inside the filter cartridge, and the outlet of the liquid extraction pipe is located above the wastewater filtration layer. A liquid extraction pump that provides the power for liquid extraction is installed on the liquid extraction pipe. The other side of the wastewater purification tank is connected to the filter box through a return pipe. A return pump that provides the power for return flow is installed on the return pipe. The inlet of the return pipe is located below the wastewater filtration layer, and the outlet of the return pipe is located outside the filter cartridge.

[0006] Furthermore, the driving component includes a gear ring, a motor, and a gear. A gear ring is fixedly installed on one side wall of the filter cylinder. A motor is fixedly installed on the side of the filter box near the gear ring. A gear is fixedly connected to the output shaft of the motor. The gear and the tooth groove on the outer side of the gear ring mesh with each other.

[0007] Furthermore, one end of the inlet of the suction pipe extends and is connected to a suction pipe, and suction ports are evenly spaced on the lower side wall of the suction pipe. The suction ports of the suction pipe are close to the inner wall of the filter cylinder, and the suction pipe is used to more evenly draw sewage from the filter box.

[0008] Furthermore, one end of the liquid extraction pipe extends and connects to a dispersion pipe. The dispersion pipe has evenly spaced openings on its wall, so that the sewage drawn into the sewage purification tank can be evenly distributed, preventing sewage from accumulating in one place in the sewage filter layer and affecting the filtration efficiency of the sewage filter layer.

[0009] Furthermore, a scraper is fixedly installed on the filter box, and the scraper slides against one side of the inner wall of the filter cylinder. The scraper is used to scrape off the pollutants attached to the inner wall of the filter cylinder.

[0010] Furthermore, observation windows are installed on both sides of the filter box, which allow users to easily observe the filtration status of the exhaust gas inside the filter box.

[0011] The beneficial effects of this utility model are: 1. This utility model filters exhaust gas through a rotating filter cylinder, and at the same time uses cleaning water at the bottom to automatically clean pollutants adhering to its inner wall during the rotation of the filter cylinder, thereby achieving continuous and efficient exhaust gas purification and equipment self-cleaning function.

[0012] 2. This utility model sends the wastewater generated during cleaning into a wastewater purification tank via a pump. After being purified by the wastewater filtration layer, it is then sent back to the bottom of the filtration tank by a return pump for reuse, which significantly saves water resources and reduces operating costs.

[0013] 3. The liquid suction pipe of this utility model is connected to a liquid suction pipe with a suction port, which can evenly draw sewage close to the inner wall of the filter cylinder. At the same time, a dispersion pipe is set at the outlet of the liquid suction pipe so that the sewage is evenly sprinkled onto the sewage filter layer, avoiding local blockage, improving purification efficiency and extending the service life of the sewage filter layer. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the components of this utility model, including the filter box, air inlet pipe, filter cylinder, and exhaust pipe.

[0016] Figure 3 This diagram shows the connection relationships of the components of this utility model, including the liquid extraction tube, liquid extraction pump, return tube, and suction tube.

[0017] Figure 4 This is a schematic diagram of the wastewater purification tank, wastewater filter layer, extraction pipe, and extraction pump of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the filter cylinder and scraper of this utility model.

[0019] In the attached diagram, the following labels are used: 1: support, 2: filter box, 21: observation window, 3: air inlet pipe, 4: filter cylinder, 5: exhaust pipe, 6: drive component, 61: gear ring, 62: motor, 63: gear, 7: wastewater purification tank, 71: wastewater filter layer, 8: liquid extraction pipe, 9: liquid extraction pump, 10: return pipe, 101: return pump, 11: suction pipe, 111: suction port, 12: dispersion pipe, 13: scraper. Detailed Implementation

[0020] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0021] A filtration device for waste gas treatment, such as Figures 1-5As shown, the system includes a support frame 1 and a filter box 2. The filter box 2 is fixedly mounted on the support frame 1. The filter box 2 has a spindle-shaped cross-section and stores clean water at its lower part. It also includes an air inlet pipe 3, a filter cartridge 4, an exhaust pipe 5, a wastewater purification tank 7, a wastewater filter layer 71, a liquid extraction pipe 8, a liquid extraction pump 9, and a return pipe 10. Multiple air inlet pipes 3 are connected to the front of the filter box 2 for introducing the waste gas to be filtered. The filter cartridge 4 is rotatably mounted inside the filter box 2, and a mechanism for driving the filter cartridge 4 to rotate is provided on the filter box 2. The drive unit 6 and the air inlet pipe 3 enter the inner area of ​​the filter cartridge 4. The filter cartridge 4 is used to filter exhaust gas. The cleaning water in the filter box 2 submerges the lower part of the filter cartridge 4. The top of the filter box 2 is connected to multiple exhaust pipes 5 for discharging the filtered gas. A sewage purification tank 7 is set at the bottom of the filter box 2. A sewage filter layer 71 for purifying sewage is installed inside the sewage purification tank 7. One side of the sewage purification tank 7 is connected to the filter box 2 through a liquid extraction pipe 8. The inlet of the liquid extraction pipe 8 is located inside the filter cartridge 4, and the outlet of the liquid extraction pipe 8 is located inside the sewage filter cartridge 4. Above the filter layer 71, a pump 9 is installed on the suction pipe 8 to provide suction power. The other side of the wastewater purification tank 7 is connected to the filter tank 2 via a return pipe 10. A return pump 101 is installed on the return pipe 10 to provide return flow power. The inlet of the return pipe 10 is located below the wastewater filter layer 71, and the outlet of the return pipe 10 is located outside the filter cylinder 4. The waste gas to be filtered is introduced into the inside of the filter cylinder 4 of the filter tank 2 through multiple air inlet pipes 3. At this time, the driving component 6 drives the filter cylinder 4 to rotate synchronously, and the filter cylinder 4... The filtered exhaust gas is discharged from the exhaust pipe 5, while the pollutants in the exhaust gas are blocked on the inner wall of the filter cylinder 4. As the filter cylinder 4 rotates continuously, the pollutants attached to the inner wall of the filter cylinder 4 will be washed by the cleaning water at the bottom of the filter box 2. Then, the liquid pump 9 pumps the cleaning wastewater into the wastewater purification tank 7 through the liquid pumping pipe 8. The wastewater filter layer 71 will filter and purify the wastewater. Finally, the filtered water is pumped back to the bottom of the filter box 2 by the return pump 101, realizing the recycling of the cleaning water.

[0022] like Figure 1 and Figure 3 As shown, the driving component 6 includes a gear ring 61, a motor 62, and a gear 63. A gear ring 61 is fixedly installed on one side wall of the filter cylinder 4. A motor 62 is fixedly installed on the side of the filter box 2 near the gear ring 61. A gear 63 is fixedly connected to the output shaft of the motor 62. The gear 63 and the tooth groove on the outer side of the gear ring 61 mesh with each other.

[0023] like Figure 3 and Figure 4 As shown, the inlet end of the suction pipe 8 extends and is connected to the suction pipe 11. Suction ports 111 are evenly spaced on the lower side wall of the suction pipe 11. The suction ports 111 of the suction pipe 11 are close to the inner wall of the filter cylinder 4. The suction pipe 11 is used to more evenly suck up the sewage in the filter box 2.

[0024] like Figure 3and Figure 4 As shown, one end of the outlet of the liquid extraction pipe 8 is connected to a dispersion pipe 12. The dispersion pipe 12 has evenly spaced openings on its wall so that the sewage drawn into the sewage purification tank 7 can be evenly distributed, avoiding the sewage from accumulating in one place in the sewage filter layer 71 and affecting the filtration efficiency of the sewage filter layer 71.

[0025] like Figure 2 and Figure 5 As shown, a scraper 13 is fixedly installed on the filter box 2. The scraper 13 slides against one side of the inner wall of the filter cylinder 4. The scraper 13 is used to scrape off the pollutants attached to the inner wall of the filter cylinder 4.

[0026] like Figure 2 As shown, observation windows 21 are installed on both sides of the filter box 2, which allows users to observe the filtration status of the exhaust gas inside the filter box 2.

[0027] When the device is running, the waste gas to be treated is introduced through multiple air inlet pipes 3 on the front side of the filter box 2 and directly enters the internal space of the filter cylinder 4. As the core filtration component, the filter cylinder 4 is driven by the motor 62 to rotate slowly and continuously through the meshing of the gear 63 and the gear ring 61. When the waste gas passes through the wall of the filter cylinder 4, the particulate matter and other pollutants are trapped and adhered to the inner wall of the cylinder. At the same time, the cleaning water stored at the bottom of the filter box 2 submerges the lower part of the filter cylinder 4. As the filter cylinder 4 rotates, the pollutants attached to the inner wall of the filter cylinder continuously penetrate and pass through the cleaning water area, where they are effectively flushed and washed by the water. To further improve the cleaning effect, the scraper 13 fixed on the filter box 2 is tightly attached to the inner wall of the filter cylinder 4, which can scrape off some of the more adhesive pollutants and let them fall into the water. The wastewater generated after washing is mainly stored in the filter cylinder 4. Inside the filter box 2, the pump 9 starts and draws out the wastewater evenly through the pump pipe 8 and the suction pipe 11 extending from its inlet end. The wastewater is then transported to the wastewater purification tank 7 located at the bottom of the filter box 2. The wastewater is evenly distributed above the wastewater filter layer 71 through the dispersion pipe 12 extending from the outlet end of the pump pipe 8. Under the action of gravity, the wastewater passes through the wastewater filter layer 71, and the suspended solids and impurities are filtered out by the wastewater filter layer 71, thus purifying the wastewater. The purified water accumulates below the wastewater filter layer 71 and is drawn back to the bottom of the filter box 2 by the return pump 101 through the return pipe 10, thereby realizing the closed-loop circulation and reuse of clean water. The clean gas purified by the filter cylinder 4 rises to the top of the filter box 2 and is discharged through multiple exhaust pipes 5. The operating status of the entire device can be monitored in real time through the observation windows 21 installed on both sides of the filter box 2.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A filtration device for treating exhaust gas, comprising a support (1) and a filter box (2), wherein the filter box (2) is fixedly installed on the support (1), and the lower part of the filter box (2) stores cleaning water; Its features are: The filter box (2) has multiple air inlet pipes (3) connected to its front side. A filter cylinder (4) is rotatably installed inside the filter box (2). A drive unit (6) is provided on the filter box (2) to drive the filter cylinder (4) to rotate. The air inlet pipes (3) are connected to the inner area of ​​the filter cylinder (4). The cleaning water in the filter box (2) submerges the lower part of the filter cylinder (4). Multiple exhaust pipes (5) are connected to the top of the filter box (2). A sewage purification tank (7) is provided at the bottom of the filter box (2). A sewage filtration layer (71) is installed inside the sewage purification tank (7). The wastewater purification tank (7) is connected to the filter tank (2) on one side through a liquid extraction pipe (8). The inlet of the liquid extraction pipe (8) is located inside the filter cylinder (4), and the outlet of the liquid extraction pipe (8) is located above the wastewater filter layer (71). A liquid extraction pump (9) is installed on the liquid extraction pipe (8). The wastewater purification tank (7) is connected to the filter tank (2) on the other side through a return pipe (10). A return pump (101) is installed on the return pipe (10). The inlet of the return pipe (10) is located below the wastewater filter layer (71), and the outlet of the return pipe (10) is located outside the filter cylinder (4).

2. The filtration device for waste gas treatment as described in claim 1, characterized in that: The driving component (6) includes a toothed ring (61), a motor (62) and a gear (63). A toothed ring (61) is fixedly installed on one side wall of the filter cylinder (4). A motor (62) is fixedly installed on the side of the filter box (2) near the toothed ring (61). A gear (63) is fixedly connected to the output shaft of the motor (62). The gear (63) and the tooth grooves on the outer side of the toothed ring (61) mesh with each other.

3. The filtration device for waste gas treatment as described in claim 1, characterized in that: The inlet end of the suction tube (8) is connected to the suction tube (11), and the suction port (111) is evenly spaced on the lower side wall of the suction tube (11). The suction port (111) of the suction tube (11) is close to the inner wall of the filter cylinder (4).

4. The filtration device for waste gas treatment as described in claim 1, characterized in that: One end of the outlet of the liquid extraction tube (8) is connected to a dispersion tube (12), and the dispersion tube (12) has openings evenly spaced on its wall.

5. The filtration device for waste gas treatment as described in claim 1, characterized in that: A scraper (13) is fixedly installed on the filter box (2), and the scraper (13) slides against one side of the inner wall of the filter cylinder (4).

6. The filtration device for waste gas treatment as described in claim 1, characterized in that: The filter box (2) has observation windows (21) installed on both sides of its side walls.

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