Environment-friendly gas filtering equipment capable of conveniently treating filter residues
By designing dust removal, cleaning, and dust collection mechanisms, the problem of secondary dust generation in the dust cleaning process of industrial flue gas treatment systems has been solved, achieving efficient dust removal and environmentally friendly emissions, and ensuring the safety of the working environment.
Patent Information
- Application Number
- CN202610178126.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-08
- Publication Date
- 2026-03-13
AI Technical Summary
Existing industrial flue gas treatment systems are prone to secondary dust generation during dust cleaning, collection, and transportation, leading to pollutant escape and deterioration of the working environment, thus offsetting some of the filtration benefits.
An environmentally friendly gas filtration device was designed, which includes dust removal, cleaning, dust collection and covering mechanisms. Through the cooperation of annular plate and scraper, dust is cleaned and collected in a closed manner. The scraper driven by the motor cleans the inner and outer pads. Combined with pulley and gear transmission, the dust and sludge fall evenly into the insertion box. The insertion box is sealed by a thin spring to form a closed cleaning, collection and transfer space.
It effectively prevents dust leakage during the cleaning process, ensures environmental protection, improves dust removal rate, and achieves dust-free emissions and a safe working environment.
Smart Images

Figure CN121648668A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of filtration equipment technology, specifically to a gas environmental filtration device with easily manageable filter residue. Background Technology
[0002] Currently, industrial flue gas treatment systems commonly employ multi-stage filtration technology, which efficiently captures particulate matter in the gas, ultimately achieving clean emissions that meet environmental standards. This technological approach has achieved significant results in both source control and end-of-pipe treatment, and is a key means of meeting current emission regulations.
[0003] However, while achieving "dust-free emissions," this process has created new environmental shortcomings: the dust collected by the filtration system is easily re-generated during subsequent cleaning, collection, and transportation due to operational disturbances. This not only leads to the escape of pollutants and the deterioration of the working environment, but also creates an awkward situation of "front-end filtration, back-end failure," which essentially offsets some of the filtration benefits and has a significant negative impact on the overall environmental goals. Summary of the Invention
[0004] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted in this invention is as follows: A gas filtration device for easy sludge removal includes a dust removal mechanism, a cleaning mechanism, a dust collection mechanism, and a covering mechanism. The dust removal mechanism includes an outer shell, an inner shell fixed inside the outer shell, an annular plate rotatably fitted between the outer shell and the inner shell, an inner pad fitted to the bottom of the annular plate and fixed to the outside of the inner shell, an outer pad fitted to the bottom of the annular plate and fixed to the inner wall of the outer shell, two sludge discharge pipes penetrating the bottom of the outer shell, and solenoid valves installed on the sludge discharge pipes, the two solenoid valves being connected in series. The cleaning mechanism includes a funnel fixed to the bottom end of the outer shell, a hollow turntable rotatably fitted to the bottom end of the funnel, a baffle fixedly embedded in the top of the inner shell, a plug removably installed inside the baffle, a motor fixedly connected to the top of the plug, a U-shaped rod fixed between the top surface of the annular plate and the motor output shaft, and two rubber rods fixed to the bottom of the annular plate. The scraper has its inner and outer sides respectively attached to the outer wall of the inner pad and the inner wall of the outer pad, and its bottom end is attached to the inner bottom surface of the outer shell. The dust collection mechanism includes a channel rotatably fitted onto the bottom of a hollow turntable, two insert boxes slidingly passing through the front and rear ends of the channel, multiple toothed blocks ring-fixed to the outside of the hollow turntable, gears meshing with the hollow turntable through the multiple toothed blocks, a rotating shaft fixed to the top of the gears, two pulleys respectively fitted onto the outer side of the motor output shaft and the top of the rotating shaft, a belt connecting the two pulleys, and a circular opening at the bottom of the hollow turntable. The covering mechanism includes a horizontal plate fixed inside the insert box, a cover plate attached to the top of the insert box, two guide rods slidingly passing through one side of the horizontal plate and fixed to the bottom of the cover plate, and a thin spring movably fitted onto the outside of the guide rods and fixed between the horizontal plate and the cover plate.
[0006] By adopting the above technical solution, flue gas is injected into the annular dust chamber, and then the dust and sludge adhere to the inner and outer pads to achieve filtration. After the filtration operation is completed, the motor drives the annular plate and scraper to rotate via the U-shaped rod. The scraper cleans the inner and outer pads and pushes the dust and sludge to the sludge discharge pipe, and then enters the hollow turntable. Here, two pulleys and belts work together to rotate the shaft and gears, which in turn drive the hollow turntable with toothed blocks to rotate, so that the dust and sludge inside fall evenly into the insertion box from the circular opening. When the insertion box is about to be full, it is pulled out. At the same time, a thin spring pulls the cover plate to seal the insertion box. This mechanism forms a closed cleaning, collection and transfer space, effectively ensuring environmental protection.
[0007] In a preferred embodiment, the present invention may be further configured such that an annular dust chamber is formed between the inner and outer pads, and the annular dust chamber is connected to the interior of the funnel through two slag discharge pipes.
[0008] In a preferred embodiment, the present invention may be further configured such that: the outer shell is composed of a metal shell and an air inlet pipe, the air inlet pipe penetrates the outer shell and one side wall of the outer pad, and the interior of the air inlet pipe communicates with the interior of the annular dust chamber.
[0009] In a preferred embodiment, the present invention can be further configured such that: both ends of the inner shell are solid, the middle part of the inner shell is meshed, and both ends of the inner pad are flush with the top and bottom of the mesh, respectively.
[0010] In a preferred embodiment, the present invention can be further configured such that: the plug is composed of a round cover and a filter cloth, the filter cloth is embedded inside the round cover, a clean air tube is passed through the bottom end of the inner shell, and the body of the clean air tube passes through one side wall of the funnel.
[0011] In a preferred embodiment, the present invention can be further configured such that: two bushings are movably sleeved on the outer side of the rotating shaft, and both bushings are fixedly connected to the outer wall of the outer shell.
[0012] In a preferred embodiment, the present invention can be further configured such that: both ends of the channel are provided with clamping components, the clamping components include two baffles fixed to the outer end of the channel, an insert plate inserted between the two baffles, and two compression springs fixed to the inner side of the insert plate, the inner end of the compression springs being fitted with the outer end of the insert box, and the two baffles being fitted with the two sides of the insert box respectively.
[0013] In a preferred embodiment, the present invention may be further configured such that: a vertical rod is installed inside the rubber scraper, and the top end of the vertical rod is fixedly connected to the bottom of the annular plate.
[0014] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows: 1. In this invention, flue gas is injected into the annular dust chamber, and then the dust adheres to the inner and outer pads to achieve filtration. After the filtration is completed, the motor rotates the annular plate and scraper through the U-shaped rod. The scraper cleans the inner and outer pads and pushes the dust to the slag discharge pipe, and then enters the hollow turntable. Here, two pulleys and belts cooperate to rotate the shaft and gears, and then drive the hollow turntable with toothed blocks to rotate, so that the dust inside falls evenly into the insertion box from the circular opening. When the insertion box is about to be filled, the insertion box is pulled out. At the same time, the thin spring pulls the cover plate to seal the insertion box. This mechanism forms a closed cleaning, collection and transfer space, effectively ensuring the environmental protection effect.
[0015] 2. In this invention, after the flue gas enters the annular dust chamber, most of the dust adheres to the outer side of the inner pad and the inner side of the outer pad, completing the initial filtration. Then, small dust particles pass through the mesh and enter the inner shell. At this time, clean gas is introduced through the clean gas pipe. The clean gas impacts the inner shell, causing the small dust particles to rush towards the plug with the gas. Then, the filter cloth performs secondary filtration on the flue gas, improving the dust removal rate and achieving environmentally friendly emissions. After all the flue gas has been filtered, the two solenoid valves are opened and the motor is started.
[0016] 3. In this invention, if the amount of dust and debris filtered in a single pass exceeds the volume of a single insert box, when the insert box at the right end of the channel is about to be full, the staff can remove the adjacent baffle to remove its pressing effect on the insert box. Then, an empty insert box is inserted from the left end of the channel, and the baffle is reassembled at the left end of the channel. At this time, the compression spring on the inside of the baffle will push the empty insert box into the channel, while the insert box that is full of dust and debris is pushed out of the channel from the other end. This process realizes the continuous connection of dust and debris collection and effectively prevents dust and debris from leaking out during the replacement process. Attached Figure Description
[0017] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a right sectional view of a part of the overall structure of the present invention; Figure 3 This is a schematic diagram of the assembly of the dust removal mechanism of the present invention; Figure 4 This is an exploded view of the dust removal mechanism of the present invention; Figure 5 This is a schematic diagram of the cleaning mechanism of the present invention; Figure 6 This is a schematic diagram showing the disassembled components of the baffle, plug, and motor of the present invention. Figure 7 This is a side view showing the cooperative relationship between the dust collection mechanism and the covering mechanism of the present invention; Figure 8 A bottom view showing the cooperation relationship between the dust collection mechanism and the covering mechanism of the present invention; Figure 9 This is a schematic diagram showing the connection relationship between the air purification tube and the inner shell of the present invention; Figure 10 This is a schematic diagram of the clamping component of the present invention.
[0018] Figure label: 100. Dust removal mechanism; 110. Outer shell; 111. Metal shell; 112. Inlet pipe; 120. Inner shell; 121. Solid; 122. Mesh; 130. Annular plate; 140. Inner pad; 150. Outer pad; 160. Slag discharge pipe; 170. Solenoid valve; 200. Cleaning mechanism; 210. Funnel; 220. Hollow turntable; 230. Baffle; 240. Plug; 241. Round cover; 242. Filter cloth; 250. Motor; 260. U-shaped rod ; 270, Rubber scraper; 300, Dust collection mechanism; 310, Channel; 320, Insert box; 330, Tooth block; 340, Gear; 350, Rotating shaft; 360, Pulley; 370, Belt; 400, Covering mechanism; 410, Horizontal plate; 420, Cover plate; 430, Guide rod; 440, Fine spring; 500, Clean air pipe; 600, Pressing assembly; 610, Baffle; 620, Insert plate; 630, Compression spring; 700, Vertical rod; 800, Bushing. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.
[0020] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.
[0021] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a gas environmental filtration device with easily manageable filter residue. Example 1:
[0022] Combination Figures 1-10 As shown, the present invention provides a gas environmental protection filtration device with easy filter residue treatment, including a dust removal mechanism 100, a cleaning mechanism 200, a dust collection mechanism 300, and a covering mechanism 400. The dust removal mechanism 100 includes an outer shell 110, an inner shell 120 fixed inside the outer shell 110, an annular plate 130 rotatably attached between the outer shell 110 and the inner shell 120, an inner pad 140 attached to the bottom of the annular plate 130 and fixed to the outside of the inner shell 120, an outer pad 150 attached to the bottom of the annular plate 130 and fixed to the inner wall of the outer shell 110, two slag discharge pipes 160 penetrating the bottom of the outer shell 110, and a solenoid valve 170 installed on the slag discharge pipe 160, with the two solenoid valves 170 connected in series. The cleaning mechanism 200 includes a funnel 210 fixedly connected to the bottom end of the outer shell 110, a hollow turntable 220 rotatably sleeved on the bottom end of the funnel 210, a baffle 230 fixedly embedded in the top end of the inner shell 120, a plug 240 detachably installed inside the baffle 230, a motor 250 fixedly connected to the top of the plug 240, a U-shaped rod 260 fixedly connected between the top surface of the annular plate 130 and the output shaft of the motor 250, and two rubber scrapers 270 fixedly connected to the bottom of the annular plate 130. The inner and outer sides of the rubber scrapers 270 are respectively attached to the outer wall of the inner pad 140 and the inner wall of the outer pad 150, and the bottom end of the rubber scrapers 270 is attached to the inner bottom surface of the outer shell 110. The dust collection mechanism 300 includes a channel 310 rotatably sleeved at the bottom of a hollow turntable 220, two insert boxes 320 slidingly passing through the front and rear ends of the channel 310, multiple toothed blocks 330 ring-fixed to the outside of the hollow turntable 220, a gear 340 meshing with the hollow turntable 220 through the multiple toothed blocks 330, a rotating shaft 350 fixedly connected to the top of the gear 340, two pulleys 360 respectively sleeved on the output shaft of the motor 250 and the outside of the top of the rotating shaft 350, a belt 370 connecting the two pulleys 360, and a circular opening at the bottom of the hollow turntable 220. The covering mechanism 400 includes a horizontal plate 410 fixed inside the insert box 320, a cover plate 420 attached to the top of the insert box 320, two guide rods 430 that slide through one side of the horizontal plate 410 and are fixed to the bottom of the cover plate 420, and a thin spring 440 that is movably sleeved on the outside of the guide rods 430 and fixed between the horizontal plate 410 and the cover plate 420.
[0023] Furthermore, an annular dust chamber is formed between the inner pad 140 and the outer pad 150. The annular dust chamber is connected to the inside of the funnel 210 through two slag discharge pipes 160. The annular dust chamber is set to plan the flow path of the flue gas and improve the adsorption effect of the inner pad 140 and the outer pad 150 on the dust in the flue gas.
[0024] Furthermore, the outer shell 110 is composed of a metal shell 111 and an air inlet pipe 112. The air inlet pipe 112 penetrates the outer shell 110 and one side wall of the outer pad 150. The interior of the air inlet pipe 112 is connected to the interior of the annular dust chamber. The structure of the outer shell 110 allows external flue gas to smoothly enter the interior of the annular dust chamber.
[0025] Furthermore, both ends of the inner shell 120 are solid 121, and the middle part of the inner shell 120 is mesh 122. The two ends of the inner pad 140 are flush with the top and bottom of the mesh 122, respectively. The structural design of the inner shell 120 provides conditions for secondary filtration of flue gas and improves the filtration effect of flue gas.
[0026] Furthermore, two bushings 800 are movably sleeved on the outer side of the shaft 350. Both bushings 800 are fixed to the outer wall of the outer shell 110. The bushings 800 can stabilize the shaft 350 and make its rotation more stable.
[0027] Furthermore, a vertical rod 700 is installed inside the rubber scraper 270. The top end of the vertical rod 700 is fixedly connected to the bottom of the annular plate 130. The purpose of setting the vertical rod 700 is to strengthen the structure of the rubber scraper 270, reduce the probability of deformation and cracking, and ensure its service life. Example 2:
[0028] Combination Figure 1 , 2 5, 6, 7 and Figure 9As shown, based on Embodiment 1, the plug 240 is composed of a round cover 241 and a filter cloth 242. The filter cloth 242 is embedded inside the round cover 241. A clean air pipe 500 passes through the bottom of the inner shell 120. The body of the clean air pipe 500 passes through one side wall of the funnel 210. The structural design of the plug 240 can effectively filter smaller dust particles, thereby creating conditions for environmentally friendly flue gas emissions. When a "mud cake" accumulates at the bottom of the filter cloth 242, the filter cloth 242 can be removed from the inside of the baffle 230 by loosening the plug 240, making it easy to clean its bottom. This design helps to maintain the filtration performance of the filter cloth 242 and ensures that the device can maintain a stable flue gas filtration effect during long-term use. Example 3:
[0029] Combination Figure 1-2 and Figure 10 As shown in the above embodiment, both ends of the channel 310 are provided with pressing components 600. The pressing component 600 includes two baffles 610 fixed to the outer end of the channel 310, an insert plate 620 inserted between the two baffles 610, and two compression springs 630 fixed to the inner side of the insert plate 620. The inner end of the compression spring 630 is in contact with the outer end of the insert box 320. The two baffles 610 are respectively in contact with the two sides of the insert box 320. After the insert box 320 is installed inside the channel 310, by installing the baffles 610, the compression springs 630 can be made to press the insert box 320. Here, the compression springs 630 are in a naturally extended state, which can push the insert box 320 into the middle of the channel 310, ensuring that the dust and debris falling from the hollow turntable 220 can be evenly filled into the interior of the insert box 320.
[0030] Working principle and usage process of this invention: In the initial state, the insert box 320 is inserted from the right end of the channel 310, while the left end of the channel 310 is empty. During insertion, the cover plate 420, which acts as a seal on the insert box 320, is pushed by the top of the channel 310, and the thin spring 440 is stretched. The cover plate 420 remains outside the channel 310, thus ensuring that the dust and slag inside the hollow turntable 220 can fall smoothly into the insert box 320 through the round opening. Then, the two solenoid valves 170 are closed to prevent unfiltered flue gas from leaking from the two slag discharge pipes 160. After the device is put into actual use, flue gas is introduced from the inlet pipe 112 and enters the annular dust chamber. Most of the dust adheres to the outer side of the inner pad 140 and the inner side of the outer pad 150, completing the initial filtration. Then, small dust particles pass through the mesh 122 and enter the inner shell 120. At this time, clean gas is introduced through the clean gas pipe 500. The clean gas impacts the inner shell 120, causing the small dust particles to rush to the plug 240 with the gas. Then, the filter cloth 242 performs secondary filtration on the flue gas, improving the dust removal rate and achieving environmentally friendly emissions. After all the flue gas has been filtered, the two solenoid valves 170 are opened and the motor 250 is started. The output shaft of motor 250 drives U-shaped rod 260 and pulley 360 directly connected to it to rotate. U-shaped rod 260 drives two rubber scrapers 270 to make circular motion, scraping off the dust attached to inner pad 140 and outer pad 150, and pushing it into slag discharge pipe 160 from the bottom of rubber scraper 270. Then the dust enters the hollow turntable 220 through funnel 210. At the same time, the aforementioned pulley 360 drives the pulley 360 at the top of the rotating shaft 350 to rotate via the belt 370, thereby causing the gear 340 to rotate. Under mechanical transmission, the hollow turntable 220 with multiple tooth blocks 330 begins to rotate, and the dust and debris fall evenly into the insertion box 320 under the action of centrifugal force. The process continues until the cassette 320 is filled with dust and debris to a predetermined level. Then, the staff removes the adjacent baffle 610 and slowly pulls the cassette 320 full of dust and debris outward. As the cassette 320 moves outward, the thin spring 440 reshapes, causing the cover 420 to gradually close and finally completely seal the top of the cassette 320. This mechanism forms a closed space for cleaning, collection and transfer, effectively ensuring environmental protection. During this process, if the amount of dust filtered in a single session exceeds the volume of a single cartridge 320, when the cartridge 320 at the right end of the channel 310 is about to be full, the staff can remove the adjacent baffle 610 to remove its clamping effect on the cartridge 320. Then, an empty cartridge 320 is inserted from the left end of the channel 310, and the baffle 610 is reassembled at the left end of the channel 310. At this time, the compression spring 630 on the inner side of the baffle 610 will push the empty cartridge 320 into the channel 310, while pushing the cartridge 320 that is full of dust out of the channel 310 from the other end. This process realizes the continuous connection of dust collection and effectively prevents dust leakage during replacement.
[0031] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A gas environmental filtration device with easily treatable filter residue, characterized in that, include: The dust removal mechanism (100) includes an outer shell (110), an inner shell (120) fixed inside the outer shell (110), an annular plate (130) rotatably attached between the outer shell (110) and the inner shell (120), an inner pad (140) attached to the bottom of the annular plate (130) and fixed to the outside of the inner shell (120), an outer pad (150) attached to the bottom of the annular plate (130) and fixed to the inner wall of the outer shell (110), two slag discharge pipes (160) penetrating the bottom of the outer shell (110), and a solenoid valve (170) installed on the slag discharge pipe (160), the two solenoid valves (170) being connected in series; The cleaning mechanism (200) includes a funnel (210) fixedly connected to the bottom end of the outer shell (110), a hollow turntable (220) rotatably sleeved on the bottom end of the funnel (210), a baffle (230) fixedly embedded in the top end of the inner shell (120), a plug (240) detachably installed inside the baffle (230), a motor (250) fixedly connected to the top of the plug (240) and the body, a U-shaped rod (260) fixedly connected between the top surface of the annular plate (130) and the output shaft of the motor (250), and two rubber scrapers (270) fixedly connected to the bottom of the annular plate (130). The inner and outer sides of the rubber scrapers (270) are respectively attached to the outer wall of the inner pad (140) and the inner wall of the outer pad (150), and the bottom end of the rubber scrapers (270) is attached to the inner bottom surface of the outer shell (110). The dust collection mechanism (300) includes a channel (310) rotatably sleeved on the bottom of the hollow turntable (220), two insert boxes (320) slidingly passing through the front and rear ends of the channel (310), multiple tooth blocks (330) ring-fixed on the outside of the hollow turntable (220), a gear (340) meshing with the hollow turntable (220) through the multiple tooth blocks (330), a rotating shaft (350) fixed to the top of the gear (340), two pulleys (360) respectively sleeved on the output shaft of the motor (250) and the outside of the top of the rotating shaft (350), a belt (370) connected between the two pulleys (360), and a circular opening at the bottom of the hollow turntable (220). The covering mechanism (400) includes a horizontal plate (410) fixed inside the insert box (320), a cover plate (420) attached to the top of the insert box (320), two guide rods (430) that slide through one side of the horizontal plate (410) and are fixed to the bottom of the cover plate (420), and a thin spring (440) that is movably sleeved on the outside of the guide rods (430) and fixed between the horizontal plate (410) and the cover plate (420).
2. The gas environmental protection filtration device with easily treatable filter residue according to claim 1, characterized in that, An annular dust chamber is formed between the inner pad (140) and the outer pad (150), and the annular dust chamber is connected to the inside of the funnel (210) through two slag discharge pipes (160).
3. The gas environmental filtration device with easily treatable filter residue according to claim 2, characterized in that, The outer shell (110) is composed of a metal shell (111) and an air inlet pipe (112). The air inlet pipe (112) penetrates the outer shell (110) and one side wall of the outer pad (150). The interior of the air inlet pipe (112) is connected to the interior of the annular dust chamber.
4. The gas environmental protection filtration device with easily treatable filter residue according to claim 1, characterized in that, Both ends of the inner shell (120) are solid (121), the middle part of the inner shell (120) is mesh (122), and the two ends of the inner pad (140) are flush with the top and bottom of the mesh (122) respectively.
5. The gas environmental filtration device with easily treatable filter residue according to claim 1, characterized in that, The plug (240) is composed of a round cover (241) and a filter cloth (242). The filter cloth (242) is embedded inside the round cover (241). A clean air tube (500) is passed through the bottom of the inner shell (120). The body of the clean air tube (500) passes through one side wall of the funnel (210).
6. The gas environmental protection filtration device with easily treatable filter residue according to claim 1, characterized in that, The rotating shaft (350) has two bushings (800) movably sleeved on the outer side of the shaft body, and both bushings (800) are fixed to the outer wall of the outer shell (110).
7. A gas environmental filtration device with easily treatable filter residue as described in claim 1, characterized in that, Both ends of the channel (310) are provided with clamping components (600). The clamping components (600) include two baffles (610) fixed to the outer end of the channel (310), a plug plate (620) inserted between the two baffles (610), and two compression springs (630) fixed to the inner side of the plug plate (620). The inner end of the compression spring (630) is in contact with the outer end of the plug box (320), and the two baffles (610) are respectively in contact with both sides of the plug box (320).
8. A gas environmental protection filtration device with easily treatable filter residue as described in claim 1, characterized in that, The rubber scraper (270) has a vertical rod (700) installed inside, and the top of the vertical rod (700) is fixedly connected to the bottom of the annular plate (130).