Analyzed gas dust filtering device with multi-stage integrated filtering function

Abstract

The invention relates to an analytic gas dust filtering device with a multi-stage integrated filtering function, which comprises two tank bodies, one side of each tank body is provided with a dust collection fan, the other side of each tank body is provided with a gas inlet pipe, one side of one dust collection fan is fixedly connected with a connecting pipe, the connecting pipe is fixedly connected with the gas inlet pipe on one side of the other tank body, and the other side of the other tank body is fixedly connected with a gas outlet pipe. Reverse blowing fans are mounted at the tops of the two tank bodies, partition plates are fixedly arranged in the tank bodies, and filtering mechanisms and reverse blowing cleaning auxiliary mechanisms are arranged in the tank bodies; according to the technical scheme, the filter element is arranged in each tank body for multi-stage filtration, the two filter elements respectively realize micro-filtration-stage filtration precision and precision-stage filtration, dust particles in desorption gas can be more comprehensively and effectively removed, the filter elements are regenerated in a reverse blowing cleaning mode, abrasion of the filter elements is reduced, and the service life of the filter elements is prolonged. Therefore, the service life of the filter element is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] This invention relates to a desorption gas dust filtration technology, and more particularly to a desorption gas dust filtration device with multi-stage integrated filtration. Background Technology

[0002] Desorbed gas is a gas produced in the coal chemical industry. Its main components are carbon monoxide and hydrogen sulfide. It is characterized by its explosiveness, large pressure fluctuations, low calorific value, and large amount of waste gas. When desorbed gas is used as a raw material for methanol production, it not only utilizes the hydrogen element in it, but also achieves chemical equilibrium with natural gas. Methanol production from natural gas has the problem of high hydrogen content and low carbon content. The excess hydrogen is generally emitted or used as fuel. However, the carbon monoxide content of desorbed gas is as high as 50%, which can be matched with hydrogen to synthesize methanol. In order to save resources, desorbed gas is usually recycled. However, desorbed gas contains a lot of dust and needs to be filtered.

[0003] Chinese patent, publication number CN216223476U, discloses a gas filtration device for desorption gas recovery and power generation. The device includes a cylinder with a primary filter screen embedded on its outer side. A collection cylinder is threaded to the bottom of the cylinder, and a sealing cap is fixedly connected to the top. An air inlet is located on one side of the upper end of the cylinder, and a cleaning mechanism is located inside the cylinder, with one side of the cleaning mechanism corresponding to the primary filter screen. This invention uses both a primary and secondary filter screen to filter the gas, resulting in better filtration. A cleaning brush is used to clean impurities from the primary filter screen, preventing clogging. To prevent clogging and ensure filtration effectiveness, the trapped impurities will fall into the collection cylinder for unified collection, facilitating later processing and making the process more convenient. In contrast, the current technology uses two layers of filter screens in a single cylinder for filtration, resulting in low filtration efficiency. Cleaning dust and impurities adhering to the filter screen with a cleaning brush causes dust to spread. When the cleaning brush stops, the scattered dust will re-adhere to the filter screen and the inner wall of the cylinder. Furthermore, cleaning with the brush can damage the filter screen structure, affecting its lifespan and making maintenance and replacement inconvenient. Summary of the Invention

[0004] In view of this, the main objective of this utility model is to provide an escalator airbag protection device. Through this technical solution, the present invention provides an integrated multi-stage filtration desorption air dust filtration device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A desorption gas dust filtration device with multi-stage integrated filtration includes two tanks connected in series by a connecting pipe. It also includes a dust collector, an air inlet pipe, a back-blowing fan, a partition, a filtration mechanism, and a back-blowing cleaning mechanism. A dust collector is installed on one side of each tank, and an air inlet pipe is installed on the other side of each tank. A connecting pipe is fixedly connected to the outside of the dust collector on one tank, and the other end of the connecting pipe is fixedly connected to the air inlet pipe on one side of the other tank. A back-blowing fan is installed on the top of each tank. A partition is horizontally fixed inside each tank. The filtration mechanism and the back-blowing cleaning auxiliary mechanism are respectively located inside the tank.

[0006] As a further technical solution, the filtration mechanism includes a support frame, a sealing ring, a circular groove, a filter element, a pressure ring, a connecting ring, a block, and a pulley. The support frame is located below the partition, the sealing ring is embedded in the top of the support frame, the circular groove is formed on the bottom surface of the partition, the support frame is inserted into the circular groove, the top of the sealing ring presses against the bottom surface of the circular groove on the partition, the filter element is fitted onto the outside of the support frame, the connecting ring is located at the bottom of the filter element and is connected to the support frame via a thread at the bottom, the pressure ring is tightened and pressed against the filter element via an internal thread on the upper part of the support frame, the block is vertically fixed on the bottom of the support frame, and the pulley is movably connected to the lower end of the block via a rotating shaft.

[0007] As a further technical solution, the backflushing cleaning auxiliary mechanism includes a connecting shell, a supporting shell, a side groove, a telescopic cover, a motor, a drive shaft, a first reciprocating screw, a first bevel gear, a second bevel gear, a rotating rod, a third bevel gear, a fourth bevel gear, a second reciprocating screw, a connecting plate, and a dust-proof belt. The connecting shell is located inside the tank, the supporting shell is located on the front side of the connecting shell, and a side groove is formed on one side of the supporting shell. The telescopic cover is located on the top of the connecting shell. The motor is fixed to the outer end of the connecting shell, and the output end of the motor is fixedly connected to the drive shaft. The drive shaft is connected to one end of the first reciprocating screw, and the other end of the first reciprocating screw is hinged to the inner wall of the inner end of the connecting shell. The first bevel gear is fitted and fixed to the drive shaft. The rotating rod passes through the connecting shell and into the supporting shell, and is hinged to the corresponding side walls of the connecting shell and the supporting shell. The second bevel gear is fixedly mounted on the rotating rod inside the connecting shell. The first bevel gear meshes with the second bevel gear. The third bevel gear is fixedly mounted on the rotating rod inside the supporting shell. The second reciprocating screw is vertically hinged inside the supporting shell. The inner end of the connecting plate is connected to the sliding pair of the second reciprocating screw. The outer end of the connecting plate passes through the side groove on the supporting shell and connects to the upper outer side wall of the telescopic cover. The fourth bevel gear is fixedly mounted on the lower end of the second reciprocating screw. The third bevel gear meshes with the fourth bevel gear. A dustproof belt is provided inside the supporting shell. The connecting plate passes through the dustproof belt and is fixedly connected to the dustproof belt.

[0008] As a further technical solution, a clamping assembly is also included. The clamping assembly is disposed within the connecting shell. The clamping assembly includes a top block, a pulley, a limiting plate, and a square shell. The top block is sleeved on the first reciprocating screw sliding pair, and the upper part of the top block presses against the pulley at an angle. The limiting plate is horizontally fixed inside the connecting shell, and the limiting plate passes through the top block and is slidably connected to the top block. The square shell is fixedly disposed inside the telescopic cover, and the square block at the lower part of the telescopic cover is inserted into the square shell, and the square block slides inside the square shell.

[0009] As a further technical solution, the backflushing cleaning auxiliary mechanism also includes an annular magnet, which is fixedly installed on the top of the telescopic cover and is attracted to the partition.

[0010] As a further technical solution, it also includes a slide, a limiting slide rod, and a connecting rod. The slide is fixedly installed on both sides of the corresponding connecting shell. The limiting slide rod passes through the slide and is slidably connected to the slide. One end of the connecting rod is fixedly connected to the inner wall of the tank, and the other end of the connecting rod is fixedly connected to the inner wall of the tank.

[0011] As a further technical solution, it also includes a waste discharge hose and a dust collection bag, one end of which is connected to the bottom of the telescopic cover, and the other end of which is connected to the dust collection bag.

[0012] As a further technical solution, it also includes a mounting shell, a door panel, a sealing gasket, a support cylinder, a spring, a fixing rod, and a pressure block groove. The mounting shell is set on one side surface of the tank body. The door panel is pressed into the mounting shell. A sealing gasket is fixedly provided on one side of the door panel. Support cylinders are fixedly provided on the lower left and right sides and the upper middle of the door panel. The spring and the fixing rod are respectively inserted into the support cylinder. The other end of the fixing rod located in the upper middle extends out of the support cylinder and is fixedly connected to the support shell. The waste discharge hose passes through the door panel and is fixedly connected to the dust collection bag. The other ends of the two fixing rods located at the bottom are fixedly connected to the slide frame. Several pressure block grooves are respectively provided on the door panel.

[0013] As a further technical solution, it also includes a sliding groove, a slider, and a fixing component. The fixing component includes a support block, a handwheel, a threaded rod, a pressure block, and a pressure block guide groove. Two sliding grooves are horizontally arranged on the upper and lower sides of the mounting shell, respectively. A slider is provided in each of the two sliding grooves. The two ends of the support block are fixedly connected to the inner ends of the two sliders. Several threaded rods are screwed onto the support block. The handwheel is fixed to the outer end of the threaded rod. The pressure block is hinged to the inner end of the threaded rod. In use, the handwheel rotates to drive the threaded rod, and the threaded rod pushes the pressure block inward along the pressure block guide groove, pushing the pressure block into the corresponding pressure block groove on the door plate.

[0014] As a further technical solution, a housing is also included, which is fitted onto the outside of the motor and is fixedly connected to the connecting shell.

[0015] The beneficial effects of adopting the above technical solution are as follows: A technical solution for a desorption gas dust filtration device with multi-stage integrated filtration has the following advantages: 1. The technical solution of this invention employs two tanks, each containing a filter element for multi-stage filtration. The two filter elements respectively achieve microfiltration and precision filtration, enabling more comprehensive and effective removal of dust particles from the desorbed gas, significantly improving filtration efficiency and quality, and ensuring that the emitted gas or gas entering subsequent processes meets higher cleanliness standards. 2. The backflushing cleaning auxiliary mechanism, through structures such as a telescopic hood and dust-separating belt, effectively isolates dust during backflushing of the filter element, preventing dust from scattering into the tank. After the telescopic hood unfolds, it adheres to the partition, forming a relatively enclosed space, allowing the backflushed dust to smoothly enter the dust collection bag through the waste discharge hose for collection, improving the cleaning effect and reducing secondary pollution. The backflushing cleaning method is used to clean the filter element... Regeneration reduces filter element wear, thereby extending filter element lifespan and lowering operating costs; 3. The filter element is fixed to the support frame via a threaded connection using a support frame, pressure ring, and connecting ring, making installation and disassembly simple and quick, facilitating filter element replacement and maintenance. Simultaneously, a mounting shell and support assembly are located on one side of the tank. By pushing the support frame and filter element into the tank, and using support blocks and fixing components to secure the door panel, the assembly and maintenance of the entire device becomes more convenient, reducing maintenance costs and downtime. A sealing ring is located at the top of the support frame. When the top block pushes the support frame and filter element upwards, the sealing ring makes tight contact with the circular groove. Simultaneously, the door panel is tightly connected to the mounting shell via a sealing gasket, effectively preventing desorption gas leakage and ensuring stable operation and filtration efficiency of the device. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall external structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the external three-dimensional structure of the tank in this invention.

[0019] Figure 3 This is a cross-sectional view of the tank in this invention.

[0020] Figure 4 This is a perspective view of the backflushing cleaning auxiliary mechanism in this invention.

[0021] Figure 5 This is a perspective view of the door panel in this invention.

[0022] Figure 6 This is a perspective view of the telescopic cover in this invention.

[0023] Figure 7 This is a partial cross-sectional view of the support component in this invention.

[0024] Figure 8 This is a cross-sectional view of the backflushing cleaning auxiliary mechanism in this invention.

[0025] Figure 9 This is a cross-sectional view of the telescopic cover in this invention.

[0026] Figure 10 This is a partial cross-sectional view of the backflushing cleaning auxiliary mechanism in this invention.

[0027] Figure 11 This is a top sectional view of the support shell in this invention.

[0028] Figure 12 This is an exploded view of the filter mechanism components in this invention.

[0029] Figure 13 for Figure 8 Enlarged view of the structure in direction A.

[0030] Figure 14 for Figure 9 Enlarged view of the structure of the B-section.

[0031] Figure 15 This is a schematic diagram of the three-dimensional structure of the mounting shell in this invention.

[0032] Figure 16 This is a three-dimensional view of the dust-proof belt in this invention.

[0033] Figure 17 This is a three-dimensional structural diagram of the fixing component in this invention.

[0034] Figure 18 This is a three-dimensional structural diagram of the support block in this invention.

[0035] In the diagram, 1 is the tank body, 2 is the vacuum fan, 3 is the air inlet pipe, 4 is the back blower, 5 is the partition, 6 is the support frame, 7 is the sealing ring, 8 is the circular groove, 9 is the filter element, 10 is the pressure ring, 11 is the connecting ring, 12 is the square block, 13 is the pulley, 14 is the connecting shell, 15 is the support shell, 16 is the side groove, 17 is the telescopic cover, 18 is the motor, 19 is the drive shaft, 20 is the first reciprocating screw, 21 is the first bevel gear, 22 is the second bevel gear, 23 is the rotating rod, 24 is the third bevel gear, 25 is the fourth bevel gear, 26 is the second reciprocating screw, 27 is the connecting plate, 28 is the dustproof belt, 29 is the top block, 30 is the connecting pipe, 31 is the limiting plate, and 32 is the square shell. 33 Ring magnet, 34 Slide, 35 Limiting slide rod, 36 Connecting rod, 37 Waste discharge hose, 38 Dust collection bag, 39 Mounting shell, 40 Door panel, 41 Sealing gasket, 42 Support cylinder, 43 Spring, 44 Fixing rod, 45 Pressing block groove, 46 Slide groove, 47 Slider, 48 Support block, 49 Handwheel, 50 Threaded rod, 51 Pressing block, 52 Pressing block guide groove, 53 Outer shell. Detailed Implementation

[0036] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings.

[0037] like Figures 1-18 As shown, the desorption gas dust filtration device with multi-stage integrated filtration involved in this invention includes two tanks 1 connected in series by a connecting pipe 30. It also includes a dust collector 2, an air inlet pipe 3, a back-blowing fan 4, a partition 5, a filtration mechanism, and a back-blowing cleaning mechanism. A dust collector 2 is provided on one side of each tank 1, and an air inlet pipe 3 is provided on the other side of each tank 1. A connecting pipe 30 is fixedly connected to the outside of the dust collector 2 on one of the tanks 1, and the other end of the connecting pipe 30 is fixedly connected to the air inlet pipe 3 on one side of the other tank 1. A back-blowing fan 4 is installed on the top of each tank 1. A partition 5 is horizontally fixed inside each tank 1. The filtration mechanism and the back-blowing cleaning auxiliary mechanism are respectively arranged inside the tank 1.

[0038] As a further embodiment, the filtration mechanism includes a support frame 6, a sealing ring 7, a circular groove 8, a filter element 9, a pressure ring 10, a connecting ring 11, a block 12, and a pulley 13. The support frame 6 is located below the partition 5. The sealing ring 7 is embedded in the top of the support frame 6. The circular groove 8 is formed on the bottom surface of the partition 5. The support frame 6 is inserted into the circular groove 8. The sealing ring 7 presses against the bottom surface of the circular groove 8 on the partition 5. The filter element 9 is fitted onto the outside of the support frame 6. The connecting ring 11 is located at the bottom of the filter element 9 and is connected to the support frame 6 via a thread at the bottom. The pressure ring 10 is screwed onto the filter element 9 via an internal thread on the upper part of the support frame 6. The block 12 is vertically fixed on the bottom of the support frame 6. The pulley 13 is movably connected to the lower end of the block 12 via a rotating shaft.

[0039] As a further embodiment, the backflushing cleaning auxiliary mechanism includes a connecting shell 14, a support shell 15, a side groove 16, a telescopic cover 17, a motor 18, a drive shaft 19, a first reciprocating screw 20, a first bevel gear 21, a second bevel gear 22, a rotating rod 23, a third bevel gear 24, a fourth bevel gear 25, a second reciprocating screw 26, a connecting plate 27, and a dust-proof belt 28. The connecting shell 14 is disposed inside the tank body 1. The support shell 15 is disposed on the front side of the connecting shell 14, and a side groove 16 is provided on one side of the support shell 15. The telescopic cover 17 is disposed on the top of the connecting shell 14. The motor 18 is fixed to the outer end of the connecting shell 14, and the output end of the motor 18 is fixedly connected to the drive shaft 19. The drive shaft 19 is connected to one end of the first reciprocating screw 20, and the other end of the first reciprocating screw 20 is hinged to the inner wall of the inner end of the connecting shell 14. The first bevel gear 21 is fitted and fixed on the drive shaft 19. The rotating rod 23 passes through the connecting shell 14 into the supporting shell 15. The rotating rod 23 is hinged to the corresponding side walls of the connecting shell 14 and the supporting shell 15. The second bevel gear 22 is fixedly mounted on the rotating rod 23 inside the connecting shell 14. The first bevel gear 21 meshes with the second bevel gear 22. The third bevel gear 24 is fixedly mounted on the rotating rod 23 inside the supporting shell 15. The second reciprocating screw 26 is vertically hinged inside the supporting shell 15. The inner end of the connecting plate 27 is connected to the sliding pair of the second reciprocating screw 26. The outer end of the connecting plate 27 passes through the side groove 16 on the supporting shell 15 and connects to the upper outer side wall of the telescopic cover 17. The fourth bevel gear 25 is fixedly mounted on the lower end of the second reciprocating screw 26. The third bevel gear 24 meshes with the fourth bevel gear 25. The supporting shell 15 is provided with a dustproof belt 28. The connecting plate 27 passes through the dustproof belt 28 and is fixedly connected to the dustproof belt 28.

[0040] As a further embodiment, a clamping assembly is also included, which is disposed within the connecting shell 14. The clamping assembly includes a top block 29, a pulley 13, a limiting plate 31, and a square shell 32. The top block 29 is sleeved on the moving pair of the first reciprocating screw 20, and the upper part of the top block 29 presses against the pulley 13 at an angle. The limiting plate 31 is horizontally fixedly disposed inside the connecting shell 14, and the limiting plate 31 passes through the top block 29 and is slidably connected to the top block 29. The square shell 32 is fixedly disposed within the telescopic cover 17, and the square block 12 at the lower part of the telescopic cover 17 is inserted into the square shell 32, and the square block 12 slides inside the square shell 32.

[0041] As a further embodiment, the backflushing cleaning auxiliary mechanism also includes an annular magnet 33, which is fixedly mounted on the top of the telescopic cover 17 and is attracted to the partition 5.

[0042] As a further embodiment, it also includes a slide 34, a limiting slide rod 35, and a connecting rod 36. The slide 34 is fixedly installed on both sides of the corresponding connecting shell 14. The limiting slide rod 35 passes through the slide 34 and is slidably connected to the slide 34. One end of the connecting rod 36 is fixedly connected to the inner wall of the tank 1, and the other end of the connecting rod 36 is fixedly connected to the inner wall of the tank 1.

[0043] As a further embodiment, it also includes a waste discharge hose 37 and a dust collection bag 38, one end of which is connected to the bottom of the telescopic cover 17, and the other end of which is connected to the dust collection bag 38.

[0044] As a further embodiment, it also includes a mounting shell 39, a door panel 40, a sealing gasket 41, a support cylinder 42, a spring 43, a fixing rod 44, and a pressure block groove 45. The mounting shell 39 is disposed on one side surface of the tank body 1. The door panel 40 is pressed into the mounting shell 39. A sealing gasket 41 is fixedly provided on one side of the door panel 40. Support cylinders 42 are fixedly provided on the lower left and right sides and the upper middle of the door panel 40, respectively. The spring 43 and the fixing rod 44 are respectively inserted into the support cylinder 42. The other end of the fixing rod 44 located in the upper middle extends out of the support cylinder 42 and is fixedly connected to the support shell 15. The waste discharge hose 37 passes through the door panel 40 and is fixedly connected to the dust collection bag 38. The other ends of the two fixing rods 44 located at the bottom are fixedly connected to the slide 34, respectively. Several pressure block grooves 45 are respectively provided on the door panel 40.

[0045] As a further embodiment, it also includes a sliding groove 46, a slider 47, a support block 48, a handwheel 49, a threaded rod 50, a pressure block 51, and a pressure block guide groove 52. Two sliding grooves 46 are respectively horizontally arranged on the upper and lower sides of the mounting shell 39, and sliders 47 are respectively provided in the two sliding grooves 46. The two ends of the support block 48 are respectively fixedly connected to the inner ends of the two sliders 47. Several threaded rods 50 are respectively screwed onto the support block 48. The handwheel 49 is fixed on the outer end of the threaded rod 50. The pressure block 51 is hinged to the inner end of the threaded rod 50. In use, the handwheel 49 rotates to drive the threaded rod 50, and the threaded rod 50 pushes the pressure block 51 inward along the pressure block guide groove 52, pushing the pressure block 51 into the corresponding pressure block groove 45 on the door plate 40.

[0046] As a further embodiment, a housing 53 is also included, which is fitted onto the outside of the motor 18 and is fixedly connected to the connecting housing 14.

[0047] In an embodiment of the present invention, the first bevel gear 21, which is fixed on the transmission shaft 19, is a one-way rotating gear equipped with a one-way drive clutch. The transmission shaft 19 and the first reciprocating screw 20 are connected by a one-way clutch, so that when the transmission shaft 19 rotates clockwise, the first bevel gear 21 has no power output, and the transmission shaft 19 only drives the first reciprocating screw 20 to work; when the transmission shaft 19 rotates counterclockwise, the first reciprocating screw 20 has no power output, and the second reciprocating screw 26 is driven to work through the first bevel gear 21, the second bevel gear 22, the third bevel gear 24 and the fourth bevel gear 25.

[0048] In the embodiment of the present invention, during operation, the filter element 9 is first fitted onto the outside of the support frame 6, and the connecting ring 11 at the bottom of the filter element 9 is threadedly connected and fixed to the bottom of the support frame 6. Then, the pressure ring 10 is fitted on, and the pressure ring 10 is threadedly connected to the upper part of the support frame 6, so that the pressure ring 10 presses and fixes the filter element 9 and the support frame 6 tightly. The square block 12 at the bottom of the support frame 6 is inserted into the square shell 32, and the pulley 13 at the bottom of the square block 12 contacts the top block 29. Then, the support frame 6 and the filter element 9 are pushed from the mounting shell 39 side into the tank 1. The slides 34 on both sides of the connecting shell 14 are fitted onto the limiting slides. The slide bar 35 slides until the slide carriage 34 stops at the middle position of the limit slide bar 35. The support frame 6 is then at the bottom of the circular groove 8. The motor 18 is then started, controlling the drive shaft 19 to rotate. The drive shaft 19 drives the first reciprocating screw 20 and the first bevel gear 21 to rotate. The drive shaft 19 can only drive the first reciprocating screw 20 to rotate clockwise; it can only drive the first bevel gear 21 to rotate counterclockwise. The clockwise rotation of the first reciprocating screw 20 will cause the top block 29 to reciprocate. The top block 29 moves to the other side of the connecting shell 14. The top block 29 pushes... The movable pulley 13 moves upward, causing the block 12 to move upward. The block 12 then moves the support frame 6 and the filter element 9 upward, causing the sealing ring 7 at the top of the support frame 6 to come into tight contact with the circular groove 8. The support frame 6 is then locked in the circular groove 8, improving the sealing at the connection. Then, the support block 48 is pushed to move. The slider 47 on one side of the support block 48 slides in the groove 46. After the support block 48 moves to the side of the door panel 40, the handwheel 49 is turned. The handwheel 49 drives the threaded rod 50 to rotate. The threaded rod 50 drives the pressure block 51 to engage inside the pressure block groove 45 and press the door panel 40 tightly against the mounting shell 39. The connection is tight, the fixing rod 44 on one side of the door panel 40 retracts into the support cylinder 42 and the spring 43 is compressed, the sealing gasket 41 improves the sealing of the connection; filtration is carried out, the desorbed gas is delivered into the tank 1 through the air inlet pipe 3, the dust collector fan 2 starts to generate suction, the tank 1 forms a negative pressure, causing the desorbed gas to pass through the filter element 9 and enter the top of the partition 5, and then is delivered to the second tank 1 through the dust collector fan 2 and the connecting pipe 30, and then undergoes a second stage of filtration through the filter element 9 inside the second tank 1. The two filter elements 9 respectively perform microfiltration with a precision of 1 micron and precision filtration with a precision of 0.When the filter element 9 traps too much dust on its outer surface, affecting the filtration effect, it can be backflushed for cleaning. The motor 18 is started, rotating counterclockwise and controlling the first bevel gear 21 to rotate. The first bevel gear 21 drives the second bevel gear 22 to rotate, which in turn drives the rotating rod 23 to rotate. The rotating rod 23 drives the third bevel gear 24 to rotate, which in turn drives the fourth bevel gear 25 to rotate. The fourth bevel gear 25 drives the second reciprocating screw 26 to rotate, which in turn drives the connecting plate 27 to reciprocate, causing the connecting plate 27 to unfold the telescopic cover 17 until the annular magnet 33 at the top of the telescopic cover 17 is reached. The dust is adsorbed at the bottom of the partition plate 5. A groove for the sliding dust-proof belt 28 is provided inside the support shell 15. The lifting and lowering of the connecting plate 27 causes the dust-proof belt 28 to slide within the groove. The dust-proof belt 28 isolates the dust, preventing it from contacting the second reciprocating screw 26. Then, the back-blowing fan 4 is activated, and the back-blowing gas enters the tank 1. The gas back-blowing the filter element 9 causes the dust on the outer surface of the filter element 9 to be blown off. The dust is separated by the telescopic cover 17, preventing it from entering the tank 1. The dust enters the dust collection bag 38 through the waste discharge hose 37, where it is intercepted and collected. The filter element 9 is regenerable, extending its service life. The filter element 9 quickly reaches its dust holding capacity.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

1. A desorption gas dust filtration device with multi-stage integrated filtration, comprising two tanks connected in series via a connecting pipe, characterized in that, It also includes a vacuum cleaner fan, an air inlet pipe, a back-blowing fan, a partition, a filter mechanism, and a back-blowing cleaning mechanism. Each tank has a vacuum cleaner fan on one side and an air inlet pipe on the other side. A connecting pipe is fixedly connected to the outside of the vacuum cleaner fan on one of the tanks, and the other end of the connecting pipe is fixedly connected to the air inlet pipe on the side of the other tank. A back-blowing fan is installed on the top of each tank. A partition is fixedly installed horizontally inside the tank. The filter mechanism and the back-blowing cleaning auxiliary mechanism are respectively located inside the tank.

2. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 1, characterized in that, The filtration mechanism includes a support frame, a sealing ring, a circular groove, a filter element, a pressure ring, a connecting ring, a block, and a pulley. The support frame is located below the partition plate, the sealing ring is embedded in the top of the support frame, the circular groove is formed on the bottom surface of the partition plate, the support frame is inserted into the circular groove, and the top of the sealing ring presses against the bottom surface of the circular groove on the partition plate. The filter element is fitted onto the outside of the support frame, the connecting ring is located at the bottom of the filter element, and the connecting ring is connected to the bottom of the support frame via a thread. The pressure ring is tightened and pressed against the filter element via an internal thread on the upper part of the support frame. The block is vertically fixed on the bottom of the support frame, and the pulley is movably connected to the lower end of the block via a rotating shaft.

3. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 1, characterized in that, The backflushing cleaning auxiliary mechanism includes a connecting shell, a supporting shell, a side groove, a telescopic cover, a motor, a drive shaft, a first reciprocating screw, a first bevel gear, a second bevel gear, a rotating rod, a third bevel gear, a fourth bevel gear, a second reciprocating screw, a connecting plate, and a dust-proof belt. The connecting shell is located inside the tank, and the supporting shell is located on the front side of the connecting shell. A side groove is opened on one side of the supporting shell. The telescopic cover is located on the top of the connecting shell. The motor is fixed to the outer end of the connecting shell, and the output end of the motor is fixedly connected to the drive shaft. The drive shaft is connected to one end of the first reciprocating screw, and the other end of the first reciprocating screw is hinged to the inner wall of the inner end of the connecting shell. The first bevel gear is fitted and fixed to the drive shaft. The rotating rod... The connecting plate passes through the supporting shell and is hinged to the corresponding side walls of the connecting shell and the supporting shell. The second bevel gear is fixedly mounted on the rotating rod inside the connecting shell. The first bevel gear meshes with the second bevel gear. The third bevel gear is fixedly mounted on the rotating rod inside the supporting shell. The second reciprocating screw is vertically hinged inside the supporting shell. The inner end of the connecting plate is connected to the sliding pair of the second reciprocating screw. The outer end of the connecting plate passes through the side groove on the supporting shell and connects to the upper outer wall of the telescopic cover. The fourth bevel gear is fixedly mounted on the lower end of the second reciprocating screw. The third bevel gear meshes with the fourth bevel gear. A dustproof belt is provided inside the supporting shell. The connecting plate passes through the dustproof belt and is fixedly connected to the dustproof belt.

4. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 3, characterized in that, It also includes a clamping assembly, which is disposed within the connecting shell. The clamping assembly includes a top block, a pulley, a limiting plate, and a square shell. The top block is sleeved on the first reciprocating screw sliding pair, and the upper part of the top block presses against the pulley at an angle. The limiting plate is horizontally fixed inside the connecting shell, and the limiting plate passes through the top block and is slidably connected to the top block. The square shell is fixedly disposed inside the telescopic cover, and the square block at the lower part of the telescopic cover is inserted into the square shell, and the square block slides inside the square shell.

5. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 3, characterized in that, The backflush cleaning auxiliary mechanism also includes a ring magnet, which is fixedly installed on the top of the telescopic cover and is attracted to the partition.

6. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 3, characterized in that, It also includes a slide, a limiting slide rod, and a connecting rod. The slide is fixedly installed on both sides of the corresponding connecting shell. The limiting slide rod passes through the slide and is slidably connected to the slide. One end of the connecting rod is fixedly connected to the inner wall of the tank, and the other end of the connecting rod is fixedly connected to the inner wall of the tank.

7. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 3, characterized in that, It also includes a waste discharge hose and a dust collection bag. One end of the waste discharge hose is connected to the bottom of the telescopic cover, and the other end of the waste discharge hose is connected to the dust collection bag.

8. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 6, characterized in that, It also includes a mounting shell, a door panel, a sealing gasket, a support cylinder, a spring, a fixing rod, and a pressure block groove. The mounting shell is set on one side surface of the tank body. The door panel is pressed into the mounting shell. A sealing gasket is fixedly provided on one side of the door panel. Support cylinders are fixedly provided on the lower left and right sides and the upper middle of the door panel. The spring and the fixing rod are respectively inserted into the support cylinder. The other end of the fixing rod located in the upper middle extends out of the support cylinder and is fixedly connected to the support shell. The waste discharge hose passes through the door panel and is fixedly connected to the dust collection bag. The other ends of the two fixing rods located at the bottom are fixedly connected to the slide frame. Several pressure block grooves are respectively provided on the door panel.

9. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 8, characterized in that, It also includes a sliding groove, a slider, and a fixing component. The fixing component includes a support block, a handwheel, a threaded rod, a pressure block, and a pressure block guide groove. Two sliding grooves are horizontally arranged on the upper and lower sides of the mounting shell, and sliders are provided in the two sliding grooves. The two ends of the support block are fixedly connected to the inner ends of the two sliders. Several threaded rods are screwed onto the support block. The handwheel is fixed to the outer end of the threaded rod. The pressure block is hinged to the inner end of the threaded rod. In use, the handwheel rotates to drive the threaded rod, and the threaded rod pushes the pressure block inward along the pressure block guide groove, pushing the pressure block into the corresponding pressure block groove on the door plate.

10. The desorption gas dust filtration device with multi-stage integrated filtration according to claim 3, characterized in that, It also includes a housing, which is fitted onto the outside of the motor and is fixedly connected to the connecting shell.

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