Chemical waste gas treatment device convenient for replacing filter screen

Abstract

The chemical waste gas treatment device comprises a treatment device body and the filter screen, the filter screen is arranged in the treatment device body, a transverse plate is fixedly installed in the treatment device body, a through hole is formed in the top of the transverse plate, the filter screen is located above the transverse plate, and the filter screen is arranged in the through hole. A sealing gasket is fixedly mounted at the top of the transverse plate. The chemical waste gas filter is reasonable in design, good in practicability, convenient to operate, time-saving and labor-saving, the filter screen can be quickly disassembled, taken out, mounted and fixed, the lower surface of the filter screen can be automatically cleaned and dedusted in the process of filtering and purifying particulate pollutants in chemical waste gas by using the filter screen, and the chemical waste gas can be filtered and purified by using the filter screen. The filter holes of the filter screen are prevented from being blocked, good air permeability of the filter screen is kept, particulate pollutants in the chemical waste gas can be filtered and purified more quickly and effectively, and the number of times of dismounting, cleaning or replacing the filter screen is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste gas treatment, in particular to a chemical waste gas treatment device which is convenient for replacing a filter screen. Background Art

[0002] Chemical waste gas refers to toxic and harmful gases discharged by chemical plants during chemical production. Chemical waste gas often contains many types of pollutants, with complex physical and chemical properties and different toxicity, which seriously pollutes the environment and affects human health. The composition of chemical waste gas generated by different chemical production industries varies greatly. According to the form of pollutants, chemical waste gas can be divided into particulate pollutants and gaseous pollutants. Particulate pollutants include dust particles, dust, smoke, fog, coal dust, etc.; gaseous pollutants include sulfur compounds, chlorine compounds, carbon oxides, hydrocarbons, halogen oxides, etc. In chemical plants, in order to reduce pollution and damage to the environment, a chemical waste gas treatment device will be configured to purify the generated chemical waste gas before discharging it. The chemical waste gas treatment device is usually equipped with a filter for preliminary filtration of particulate pollutants in chemical waste gas. After long-term use, the filter needs to be regularly disassembled, cleaned or replaced.

[0003] However, when the commonly used chemical waste gas treatment device is in use, the filter is usually fixed inside the chemical waste gas treatment device using multiple bolts. When the chemical waste gas enters the chemical waste gas treatment device, due to the certain corrosiveness of the chemical waste gas, the multiple bolts used to fix the filter are easily corroded and damaged, which makes it inconvenient to disassemble and install the filter. The disassembly and assembly of the filter is cumbersome and laborious. Moreover, although the filter can be disassembled and replaced, after a period of use, more and more particulate pollutants will accumulate on its surface, which will easily clog the filter holes on the filter, resulting in poor air permeability of the filter and reduced filtering effect, thereby increasing the number of times the filter is disassembled, cleaned or replaced, resulting in an increase in the workload of the staff. For this reason, we propose a chemical waste gas treatment device that is easy to replace the filter to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a chemical waste gas treatment device that is easy to replace the filter screen, which solves the problems of inconvenient disassembly and installation of the filter screen, cumbersome and laborious disassembly and assembly of the filter screen, and more and more particulate pollutants will accumulate on the surface of the filter screen after being used for a period of time, which can easily clog the filter holes on the filter screen, causing the air permeability of the filter screen to deteriorate and the filtering effect to be reduced, thereby increasing the number of times the filter screen needs to be disassembled, cleaned or replaced, resulting in an increase in the workload of the staff.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chemical waste gas treatment device which is easy to replace the filter screen, comprising a treatment device body and a filter screen, the filter screen is arranged in the treatment device body, a horizontal plate is fixedly installed in the treatment device body, a through hole is opened on the top of the horizontal plate, the filter screen is located above the horizontal plate, a sealing gasket is fixedly installed on the top of the horizontal plate, the top of the sealing gasket is in contact with the bottom of the filter screen, two positioning grooves are opened on the top of the horizontal plate, the two positioning grooves are symmetrically arranged on both sides of the through hole, two positioning seats are fixedly installed on the bottom of the filter screen, the bottoms of the two positioning seats are respectively slidably installed in the corresponding positioning grooves, and a clamping groove is opened on the side away from each other of the two positioning seats, a clamping mechanism is arranged on the horizontal plate, and a dust removal mechanism is arranged in the treatment device body.

[0008] Preferably, the clamping mechanism includes two push plates, two clamping rods and two springs, and sliding grooves are provided on the inner walls on the sides of the two positioning grooves away from each other. The two push plates are slidably installed in the relative sliding grooves, and the two clamping rods are fixedly installed on the sides of the two push plates close to each other. The ends of the two clamping rods close to each other are slidably installed in the corresponding clamping grooves, and the two springs are fixedly installed on the sides of the two push plates away from each other. The ends of the two springs away from the corresponding push plates are fixedly connected to the inner walls of one side of the corresponding sliding grooves, and guide holes are provided on the top inner walls of the two sliding grooves, and the tops of the two push plates pass through the corresponding guide holes.

[0009] Preferably, a transversely arranged sliding rod is fixedly installed in each of the two guide holes, and the two push plates are respectively slidably sleeved on the corresponding sliding rods.

[0010] Preferably, the dust removal mechanism includes a reciprocating screw, a movable seat, a brush plate, first bristles, a support plate and a motor. The reciprocating screw is rotatably installed in the processing device body and is located below the cross plate. The movable seat is threadedly sleeved on the reciprocating screw. The brush plate is fixedly installed on the top of the movable seat. The first bristles are fixedly installed on the top of the brush plate. The top ends of the first bristles pass through the through holes and the sealing gaskets in sequence and contact the bottom of the filter. The support plate is fixedly installed on the right outer wall of the processing device body. The motor is fixedly installed on the top of the support plate. The right end of the reciprocating screw extends outside the processing device body and is fixedly connected to the output shaft end of the motor.

[0011] Preferably, two vertical plates are fixedly installed at the bottom of the brush plate, the movable seat is located between the two vertical plates, circular holes are opened on the sides of the two vertical plates close to each other, the two ends of the reciprocating screw respectively pass through the corresponding circular holes, second bristles are fixedly installed on the inner walls of the two circular holes, and the two second bristles are in contact with the reciprocating screw.

[0012] Preferably, a transverse guide rod located below the reciprocating screw is fixedly installed in the body of the processing device, two baffle rods are fixedly installed on the transverse guide rod, and the movable seat is slidably sleeved on the transverse guide rod and located between the two baffle rods.

[0013] Preferably, a cleaning port is provided on the front inner wall of the processing device body, and a cleaning door is fixedly installed on the front outer wall of the processing device body by screws, and the cleaning door is adapted to the cleaning port.

[0014] (III) Beneficial effects

[0015] The utility model provides a chemical waste gas treatment device which is easy to replace the filter screen. It has the following beneficial effects:

[0016] (1) The chemical waste gas treatment device that is easy to replace the filter screen can realize the rapid disassembly and rapid installation and fixation of the filter screen by utilizing the connection and cooperation of the clamping column mechanism. The operation is simple and convenient, saving time and effort.

[0017] (2) This chemical waste gas treatment device, which is easy to replace the filter screen, can automatically clean and remove dust from the lower surface of the filter screen by utilizing the connection and cooperation of the dust removal mechanism, thereby preventing particulate pollutants from gathering on the lower surface of the filter screen and causing clogging of the filter holes. The filter screen can maintain good air permeability, and can filter and purify particulate pollutants in chemical waste gas faster and more effectively, reducing the number of times the filter screen needs to be disassembled, cleaned or replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a partial cross-sectional structural schematic diagram of the main view of the utility model;

[0020] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged portion B.

[0022] In the figure: 1. treatment device body; 2. filter screen; 3. horizontal plate; 4. through hole; 5. sealing gasket; 6. positioning groove; 7. positioning seat; 8. card slot; 9. slide groove; 10. push plate; 11. card rod; 12. spring; 13. guide hole; 14. reciprocating screw; 15. movable seat; 16. brush plate; 17. first bristle; 18. support plate; 19. motor; 20. vertical plate; 21. round hole; 22. second bristle; 23. horizontal guide rod; 24. cleaning door. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a chemical waste gas treatment device that is easy to replace the filter screen, including a treatment device body 1 and a filter screen 2, the filter screen 2 is arranged in the treatment device body 1, a horizontal plate 3 is fixedly installed in the treatment device body 1, a through hole 4 is opened on the top of the horizontal plate 3, the filter screen 2 is located above the horizontal plate 3, a sealing gasket 5 is fixedly installed on the top of the horizontal plate 3, the top of the sealing gasket 5 is in contact with the bottom of the filter screen 2, and the sealing gasket 5 can be used to seal the gap between the horizontal plate 3 and the filter screen 2, two positioning grooves 6 are opened on the top of the horizontal plate 3, and the two positioning grooves 6 are symmetrically arranged on both sides of the through hole 4, and two positioning seats 7 are fixedly installed on the bottom of the filter screen 2 The bottoms of the two positioning seats 7 are slidably installed in the corresponding positioning grooves 6 respectively. The two positioning seats 7 are provided with a card slot 8 on the side away from each other. The cross plate 3 is provided with a card installation mechanism. The processing device body 1 is provided with a dust removal mechanism. The card column mechanism can be used to quickly disassemble and quickly install and fix the filter 2. The operation is simple and convenient. The dust removal mechanism can be used to clean and remove dust from the lower surface of the filter 2 to avoid the accumulation of particulate pollutants on the lower surface of the filter 2 and cause the filter holes to be blocked, thereby maintaining the good air permeability of the filter 2, and can filter and purify the particulate pollutants in the chemical waste gas faster and more effectively, reducing the number of times the filter 2 is disassembled, cleaned or replaced.

[0026] The two clamping rods 11 are respectively fixedly mounted on the sides where the two push plates 10 are close to each other. The ends of the two clamping rods 11 close to each other are respectively slidably mounted in the corresponding clamping grooves 8. The two springs 12 are respectively fixedly mounted on the sides where the two push plates 10 are close to each other. The ends of the two clamping rods 11 close to each other are respectively slidably mounted in the corresponding clamping grooves 8. The two springs 12 are respectively fixedly mounted on the sides where the two push plates 10 are close to each other. The ends of the two springs 12 away from the corresponding push plates 10 are respectively fixedly connected to the inner walls of one side of the corresponding clamping grooves 9. The top inner walls of the two clamping grooves 9 are provided with guide holes 13. The tops of the two push plates 10 respectively penetrate the corresponding guide holes 13. The installation position of the filter screen 2 can be fixed by the clamping cooperation between the two clamping rods 11 and the corresponding clamping grooves 8. The two push plates 10 are convenient for pushing the corresponding clamping rods 11 to move horizontally. The elastic force of the two springs 12 can be used to control the corresponding push plates 10 to automatically reset.

[0027] In this embodiment, transversely arranged sliding rods are fixedly installed in the two guide holes 13, and the two push plates 10 are respectively slidably mounted on the corresponding sliding rods. The sliding connection of the push plates 10 in the guide holes 13 and the cooperation with the sliding rods play a role in guiding the sliding direction of the push plates 10, so that the two push plates 10 can slide horizontally.

[0028] In this embodiment, the dust removal mechanism includes a reciprocating screw 14, a movable seat 15, a brush plate 16, a first brush 17, a support plate 18 and a motor 19. The reciprocating screw 14 is rotatably installed in the processing device body 1 and is located below the cross plate 3. The movable seat 15 is threadedly sleeved on the reciprocating screw 14. The brush plate 16 is fixedly installed on the top of the movable seat 15. The first brush 17 is fixedly installed on the top of the brush plate 16. The top of the first brush 17 passes through the through hole 4 and the sealing gasket 5 in sequence and contacts the bottom of the filter screen 2. The support plate 18 is fixedly installed on the right outer wall of the processing device body 1. The motor 19 is fixedly installed on the top of the support plate 18. The right end of the reciprocating screw 14 extends to the outside of the processing device body 1 and is fixedly connected to the output shaft end of the motor 19. The threaded connection between the reciprocating screw 14 and the movable seat 15 can be used to control the brush plate 16 and the first brush 17 to move back and forth horizontally. The first brush 17 can be used to clean up the particulate pollutants adhered to the lower surface of the filter screen 2.

[0029] In this embodiment, two vertical plates 20 are fixedly installed at the bottom of the brush plate 16, and the movable seat 15 is located between the two vertical plates 20. Circular holes 21 are opened on the side where the two vertical plates 20 are close to each other. The two ends of the reciprocating screw 14 respectively pass through the corresponding circular holes 21. Second bristles 22 are fixedly installed on the inner walls of the two circular holes 21. The two second bristles 22 are in contact with the reciprocating screw 14. The second bristles 22 can be used to clean and remove dust from the surface of the reciprocating screw 14, so that the movable seat 15 can move smoothly on the reciprocating screw 14 without jamming.

[0030] In this embodiment, the first bristles 17 and the second bristles 22 can be made of nylon material or other corrosion-resistant materials.

[0031] In this embodiment, a cross guide rod 23 located below the reciprocating screw 14 is fixedly installed in the processing device body 1, and two baffle rods are fixedly installed on the cross guide rod 23. The movable seat 15 is slidably sleeved on the cross guide rod 23 and is located between the two baffle rods. The cross guide rod 23 can be used to guide the movement direction of the movable seat 15 so that the movable seat 15 can move horizontally smoothly. The two baffle rods can be used to limit the moving stroke of the movable seat 15.

[0032] In this embodiment, a cleaning port is opened on the front inner wall of the processing device body 1, and a cleaning door 24 is fixedly installed on the front outer wall of the processing device body 1 by screws. The cleaning door 24 is adapted to the cleaning port. By setting the cleaning door 24 and the cleaning port, it is convenient to clean out the particulate contaminants inside the processing device body 1, and it is also convenient to disassemble and install the filter 2.

[0033] In this embodiment, a control switch is fixedly installed on the right outer wall of the processing device body 1, and the motor 19 and the control switch are electrically connected to the external power line through a wire to form a loop. The control switch can control the opening and closing of the motor 19.

[0034] In this embodiment, the treatment device body 1 is provided with accessories such as an exhaust gas inlet pipe and an exhaust gas exhaust pipe, and other exhaust gas purification components or structures are also provided inside the treatment device body 1, which are all conventional technical means in the prior art field and will not be described in detail.

[0035] When in use, the treatment device body 1 is opened to purify the chemical waste gas. When the waste gas enters the treatment device body 1, the filter 2 can be used to intercept and filter the particulate pollutants in the waste gas, and the particulate pollutants are blocked and intercepted in the space below the filter 2. When the filter 2 needs to be disassembled, cleaned or replaced, the cleaning door 24 is first disassembled, and then the two push plates 10 are pushed away from each other. The two push plates 10 drive the corresponding clamping rods 11 to slide out of the corresponding clamping slots 8 respectively. The two springs 12 are compressed and deformed to generate elastic force. When the two clamping rods 11 are pushed out of the corresponding clamping slots 8 respectively, , that is, release the fixation of the filter screen 2, so that the filter screen 2 can be removed to the outside of the processing device body 1, thereby realizing the quick disassembly and removal of the filter screen 2, which is simple and convenient to operate. When the filter screen 2 needs to be installed back into the processing device body 1, first push the two push plates 10 to move away from each other. At this time, the two springs 12 are compressed and deformed to generate elastic force. When the two push plates 10 drive the corresponding clamping rods 11 to move out of the corresponding positioning grooves 6 respectively, keep the positions of the two push plates 10 fixed, and then insert the two positioning seats 7 at the bottom of the filter screen 2 into the corresponding positioning grooves 6 respectively, and then release the two push plates 10. At this time, under the elasticity of the two springs 12 Under the action of force, the two clamping rods 11 can be controlled to be inserted into the corresponding clamping grooves 8 respectively, thus completing the quick installation and fixation of the filter screen 2, which is convenient to operate, saves time and effort, and in the process of using the treatment device body 1 to purify the chemical waste gas, by starting the motor 19, the motor 19 drives the reciprocating screw 14 to rotate, so that the brush plate 16 drives the first brush 17, the two vertical plates 20 and the two groups of second brushes 22 to reciprocate horizontally, and the horizontal reciprocating motion of the first brush 17 can be used to clean up the particulate pollutants adhered to the lower surface of the filter screen 2, thereby realizing the function of automatically cleaning and removing dust from the lower surface of the filter screen 2, and avoiding the particulate pollutants from being deposited on the lower surface of the filter screen 2. The more particles gather on the surface, the more clogged the filter holes will be. This can maintain the good air permeability of the filter 2, and can filter and purify the particulate pollutants in the chemical waste gas faster and more effectively, reducing the number of times the filter 2 needs to be disassembled, cleaned or replaced. The horizontal reciprocating motion of the second bristles 22 can be used to clean and remove dust from the surface of the reciprocating screw 14, avoiding the adhesion of particulate pollutants to the surface of the reciprocating screw 14, so that the movable seat 15 can move smoothly on the reciprocating screw 14 without jamming, thereby ensuring that the lower surface of the filter 2 is cleaned and removed smoothly. At the same time, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0036] In summary, the chemical waste gas treatment device that is easy to replace the filter screen is convenient for quick disassembly and removal and quick installation and fixing of the filter screen 2, which is easy to operate, saves time and effort, and in the process of using the filter screen 2 to filter and purify the particulate pollutants in the chemical waste gas, the lower surface of the filter screen 2 can be automatically cleaned and dusted to avoid clogging of the filter holes of the filter screen 2, and the good air permeability of the filter screen 2 can be maintained. The particulate pollutants in the chemical waste gas can be filtered and purified faster and more effectively, and the number of times the filter screen 2 is disassembled, cleaned or replaced can be reduced.

Claims

1. A chemical waste gas treatment device that is easy to replace a filter screen, comprising a treatment device body (1) and a filter screen (2), wherein the filter screen (2) is arranged in the treatment device body (1), and is characterized in that: A transverse plate (3) is fixedly installed in the processing device body (1), a through hole (4) is provided on the top of the transverse plate (3), the filter screen (2) is located above the transverse plate (3), a sealing gasket (5) is fixedly installed on the top of the transverse plate (3), the top of the sealing gasket (5) is in contact with the bottom of the filter screen (2), two positioning grooves (6) are provided on the top of the transverse plate (3), the two positioning grooves (6) are symmetrically arranged on both sides of the through hole (4), two positioning seats (7) are fixedly installed at the bottom of the filter screen (2), the bottoms of the two positioning seats (7) are respectively slidably installed in the corresponding positioning grooves (6), and the two positioning seats (7) are provided with a clamping groove (8) on the side away from each other, a clamping mechanism is provided on the transverse plate (3), and a dust removal mechanism is provided in the processing device body (1).

2. A chemical waste gas treatment device that is easy to replace the filter screen according to claim 1, characterized in that: The clamping mechanism comprises two push plates (10), two clamping rods (11) and two springs (12). A sliding groove (9) is provided on the inner wall of the two positioning grooves (6) on the side away from each other. The two push plates (10) are respectively slidably installed in the opposite sliding grooves (9). The two clamping rods (11) are respectively fixedly installed on the side where the two push plates (10) are close to each other. The ends of the two clamping rods (11) close to each other are respectively slidably installed in the corresponding clamping grooves (8). The two springs (12) are respectively fixedly installed on the side where the two push plates (10) are away from each other. The ends of the two springs (12) away from the corresponding push plates (10) are respectively fixedly connected to the inner wall of one side of the corresponding sliding groove (9). The top inner walls of the two sliding grooves (9) are provided with guide holes (13). The tops of the two push plates (10) respectively penetrate the corresponding guide holes (13).

3. A chemical waste gas treatment device that is easy to replace the filter screen according to claim 2, characterized in that: A transversely arranged sliding rod is fixedly installed in each of the two guide holes (13), and the two push plates (10) are respectively slidably sleeved on the corresponding sliding rods.

4. The chemical waste gas treatment device that is easy to replace the filter screen according to claim 1 is characterized in that: The dust removal mechanism comprises a reciprocating screw (14), a movable seat (15), a brush plate (16), first bristles (17), a support plate (18) and a motor (19); the reciprocating screw (14) is rotatably mounted in the processing device body (1) and is located below the cross plate (3); the movable seat (15) is threadedly sleeved on the reciprocating screw (14); the brush plate (16) is fixedly mounted on the top of the movable seat (15); the first bristles (17) are fixedly mounted on the top of the brush plate (16); the top ends of the first bristles (17) pass through the through holes (4) and the sealing gasket (5) in sequence and contact the bottom of the filter screen (2); the support plate (18) is fixedly mounted on the right outer wall of the processing device body (1); the motor (19) is fixedly mounted on the top of the support plate (18); the right end of the reciprocating screw (14) extends outside the processing device body (1) and is fixedly connected to the output shaft end of the motor (19).

5. A chemical waste gas treatment device that is easy to replace the filter screen according to claim 4, characterized in that: Two vertical plates (20) are fixedly mounted on the bottom of the brush plate (16), the movable seat (15) is located between the two vertical plates (20), and circular holes (21) are provided on the sides of the two vertical plates (20) close to each other. The two ends of the reciprocating screw (14) respectively penetrate the corresponding circular holes (21), and second bristles (22) are fixedly mounted on the inner walls of the two circular holes (21), and the two second bristles (22) are in contact with the reciprocating screw (14).

6. The chemical waste gas treatment device that is easy to replace the filter screen according to claim 4 is characterized in that: A transverse guide rod (23) located below the reciprocating screw (14) is fixedly installed in the processing device body (1), two blocking rods are fixedly installed on the transverse guide rod (23), and the movable seat (15) is slidably sleeved on the transverse guide rod (23) and located between the two blocking rods.

7. The chemical waste gas treatment device that is easy to replace the filter screen according to claim 1 is characterized in that: A cleaning opening is provided on the front inner wall of the processing device body (1), and a cleaning door (24) is fixedly mounted on the front outer wall of the processing device body (1) by means of screws, wherein the cleaning door (24) is adapted to the cleaning opening.

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