Catalytic exhaust gas treatment device

Abstract

The utility model discloses a catalytic waste gas treater for waste gas treatment, including processing box, filter plate, cyclone dust collector, the inside processing box is equipped with the air inlet chamber, catalytic reaction chamber and the air outlet chamber that communicate in proper order, the filter plate slidingly inserts the inside top of processing box, be equipped with the cleaning assembly for cleaning filter plate in catalytic reaction chamber, and cleaning assembly includes the brush board of adapting filter plate net face size, high pressure fan, screw rod, and the cyclone dust collector is located in the top of processing box, and the cyclone dust collector's dust inlet communicates with catalytic reaction chamber through dust -leading pipe, and the brush board reciprocating sliding cooperation high pressure fan airflow is driven through screw rod, and when the airflow of high pressure fan is delivered to the brush board through the hose, forms the multidirectional injection angle through the blowhole, can completely blow off the fine impurity that brush moves and raises from filter plate, and this on -line cleaning mode can clean without disassembling filter plate, reduces the edge wear and deformation that filter plate causes because of frequent disassembly.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, specifically relating to a catalytic waste gas processor for waste gas treatment. Background Technology

[0002] Industrial production processes generate a large amount of waste gas containing harmful substances. If this gas is discharged directly without effective treatment, it will seriously harm the ecological environment and human health. Catalytic waste gas processors, with their high-efficiency waste gas purification capabilities, have been widely used in industries such as chemical, metallurgical, and power. Existing catalytic exhaust gas processors typically employ precious metal catalysts (such as platinum and palladium) or non-precious metal catalysts (such as transition metal oxides) to induce oxidation and reduction reactions in pollutants in the exhaust gas (such as carbon monoxide, nitrogen oxides, and volatile organic compounds), transforming them into harmless substances like carbon dioxide, water, and nitrogen. Simultaneously, the processor incorporates filters, often made of metal or synthetic fibers, to remove dust, particulate matter, and other impurities from the exhaust gas, preventing them from adhering to the catalyst surface and affecting the catalytic effect. However, over long-term operation, a large amount of impurities gradually accumulates on the filters. If not cleaned promptly, this increases the resistance to exhaust gas flow, significantly reducing the processor's efficiency and potentially shortening its lifespan. Currently, many catalytic exhaust gas processors use bolt-fixed or snap-fit ​​connections for their filters, requiring removal during cleaning. This process is not only time-consuming and labor-intensive, requiring professional personnel, but also carries the risk of damaging the filters or other components of the processor during disassembly and reinstallation, causing considerable inconvenience. Utility Model Content

[0003] The purpose of this invention is to provide a catalytic waste gas processor for waste gas treatment, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a catalytic waste gas processor for waste gas treatment, comprising: The treatment box has an air inlet chamber, a catalytic reaction chamber and an air outlet chamber connected in sequence inside. The chamber walls are made of high temperature resistant and corrosion resistant alloy material and are integrally formed, which can realize the closed flow of waste gas from introduction to the exhaust after the completion of catalytic reaction. The filter plate is slidably embedded into the top of the processing box for quick insertion and assembly. The catalytic reaction chamber is equipped with a cleaning assembly for cleaning the filter plate. The cleaning assembly includes a brush plate adapted to the size of the filter plate mesh, a high-pressure blower, and a lead screw. The lead screw drives the brush plate to slide back and forth along the surface of the filter plate through forward and reverse rotation, so that the brush plate, in conjunction with the high-pressure airflow blown by the high-pressure blower, blows off the impurities brushed on the filter plate during the cleaning process. The cyclone dust collector is located at the top of the processing box, and its dust inlet is connected to the catalytic reaction chamber through a dust inlet pipe. The centrifugal force field is formed by the rotating airflow inside the cyclone dust collector, which causes dust particles to be thrown into the cyclone dust collector for collection under the action of centrifugal force.

[0005] Preferably, the lead screw is rotatably connected to the catalytic reaction chamber via a bearing, and the slider connected to one end of the brush plate is connected to the lead screw via a lead screw nut.

[0006] Preferably, a sliding rod is connected inside the catalytic reaction chamber and a slider is slidably sleeved on the sliding rod, and a base is connected to the bottom of the processing box and a high-pressure blower is located inside the base.

[0007] Preferably, the brush plate is hollow and has a number of air holes evenly distributed on its surface, and the base is equipped with a servo motor and the output shaft of the servo motor is connected to a lead screw.

[0008] Preferably, the air outlet of the high-pressure blower is connected to a hollow brush plate via a flexible hose. The bottom of the brush plate is connected to a connector, and the bottom of the connector is connected to a nozzle. The air outlet of the nozzle faces the transmission part of the slider and the lead screw.

[0009] Preferably, ventilation filter plates are fixed to both sides of the base by screws, and a catalytic plate is provided in the catalytic reaction chamber. Both the catalytic plate and the filter plate are connected to guide rails on both sides. The catalytic plate and the filter plate are slidably embedded into the pre-set guide groove in the top of the treatment box through the guide rails, and slide longitudinally into the treatment box along the guide groove.

[0010] Preferably, the bottom of the cyclone dust collector is connected to a mounting bracket, and the bottom of the mounting bracket is connected to the processing box. The bottom of the cyclone dust collector is connected to a collection box via a flange.

[0011] Preferably, the cyclone dust collector is equipped with a dust removal fan at the top, the collection box has a hinged sealing door on its surface, and the collection box is also equipped with a collection hopper.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The brush plate is driven to slide back and forth by a lead screw, which works in conjunction with the airflow from a high-pressure blower. When the airflow from the high-pressure blower is delivered to the brush plate through a hose, it forms a multi-directional spray angle through the air holes, which can completely blow away the fine impurities raised by the brushing. This online cleaning method can clean the filter plate without disassembling it, reducing edge wear and deformation caused by frequent disassembly of the filter plate.

[0013] The dust and impurities generated during cleaning enter the cyclone dust collector through the dust inlet pipe. The centrifugal force field formed by the rotating airflow of the dust collector fan throws the dust particles against the inner wall of the dust collector and collects them into the collection box. The design of the collection hopper and the sealed door facilitates the centralized treatment of impurities, avoids the scattering of impurities and secondary pollution, and ensures the cleanliness of the treatment environment.

[0014] The filter plate and catalytic plate are slidably connected to the guide groove on the top of the treatment box via guide slides, enabling quick insertion, assembly and disassembly. This facilitates regular replacement or maintenance and significantly shortens maintenance time compared to bolt fixing or snap-fit ​​connections, thus improving the maintainability of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the structure of the cyclone dust collector of this utility model; Figure 4 This is a schematic diagram of the structure of the brush plate of this utility model; Figure 5 This is a schematic diagram of the structure of the catalyst plate of this utility model; Figure 6 This is a schematic diagram of the structure of the collection box of this utility model.

[0016] In the diagram: 1. Processing box; 2. Inlet chamber; 3. Catalytic reaction chamber; 4. Outlet chamber; 5. Filter plate; 6. Brush plate; 7. High-pressure blower; 8. Lead screw; 9. Cyclone dust collector; 10. Dust collection pipe; 11. Slide bar; 12. Slider; 13. Base; 14. Hose; 15. Air blowing hole; 16. Servo motor; 17. Ventilation filter plate; 18. Catalytic plate; 19. Guide slide bar; 20. Mounting bracket; 21. Collection box; 22. Dust removal fan; 23. Sealing door; 24. Collection hopper; 25. Connector; 26. Nozzle. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] This utility model provides, for example Figure 1-6 A catalytic converter for waste gas treatment is shown, comprising: The treatment chamber 1 has an air inlet chamber 2, a catalytic reaction chamber 3 and an air outlet chamber 4 connected in sequence inside. The chamber walls are made of high temperature resistant and corrosion resistant alloy material and are integrally formed. It can realize the closed flow of waste gas from introduction to the exhaust after the catalytic reaction is completed. It can effectively prevent waste gas leakage and can withstand the high temperature and corrosive environment in the waste gas treatment process, ensuring stable operation of the equipment. The filter plate 5 is slidably embedded into the top of the treatment box 1, allowing for quick insertion and assembly, facilitating installation and subsequent maintenance and replacement. Simultaneously, the filter plate 5 uses a uniformly distributed micron-level mesh structure on its surface to physically intercept and filter solid impurities such as particulate matter and dust in the exhaust gas. The catalytic reaction chamber 3 is equipped with a cleaning assembly for cleaning the filter plate 5. This assembly includes a brush plate 6 adapted to the mesh size of the filter plate 5, a high-pressure blower 7, and a lead screw 8. The lead screw 8 drives the brush plate 6 to slide back and forth along the surface of the filter plate 5 via forward and reverse rotation. During the cleaning process, the brush plate 6, in conjunction with the high-pressure airflow from the high-pressure blower 7, blows off the impurities brushed onto the filter plate 5, thus achieving online cleaning of the filter plate 5 without disassembly, reducing damage to the filter plate 5 caused by frequent disassembly. Cyclone dust collector 9 is located on top of the processing box 1, and the dust inlet of the cyclone dust collector 9 is connected to the catalytic reaction chamber 3 through the dust inlet pipe 10. The cyclone dust collector 9 can form a centrifugal force field through the rotating airflow inside the cyclone dust collector 9, so that dust particles are thrown into the cyclone dust collector 9 for collection under the action of centrifugal force, thereby achieving effective collection of impurities generated during cleaning and avoiding secondary pollution. The lead screw 8 is rotatably connected to the catalytic reaction chamber 3 via a bearing, which ensures the stability of the lead screw 8's rotation. The slider 12 connected to one end of the brush plate 6 is connected to the lead screw 8 via a lead screw nut, which can convert the rotational motion of the lead screw 8 into the linear motion of the slider 12, thereby driving the brush plate 6 to move stably and ensuring the orderly progress of the cleaning work. The catalytic reaction chamber 3 is connected to a slide rod 11 and a slider 12 is slidably sleeved on the slide rod 11, which can guide and limit the movement of the slider 12, ensuring that the brush plate 6 moves smoothly along the predetermined trajectory. The bottom of the treatment box 1 is connected to a base 13 and the high-pressure blower 7 is located in the base 13, which can provide a stable installation position for the high-pressure blower 7 and at the same time protect it. The brush plate 6 is hollow and has several air holes 15 evenly distributed on its surface, which can spray high-pressure airflow from multiple directions to enhance the cleaning effect on impurities. The base 13 is equipped with a servo motor 16 and the output shaft of the servo motor 16 is connected to the lead screw 8, which can provide power for the rotation of the lead screw 8 and can accurately control the forward and reverse rotation and speed of the lead screw 8, so as to achieve precise control of the reciprocating sliding of the brush plate 6. The outlet of the high-pressure blower 7 is connected to the hollow brush plate 6 via a flexible hose 14. The hose 14 has a certain length to flexibly deliver high-pressure airflow to the brush plate 6 while also accommodating the reciprocating motion of the brush plate 6, ensuring a continuous and stable airflow supply. The bottom of the brush plate 6 is connected to a connector 25, and the bottom of the connector 25 is connected to a nozzle 26. The outlet of the nozzle 26 faces the transmission point between the slider 12 and the lead screw 8. When the high-pressure blower 7 is started, the high-pressure airflow is delivered to the hollow brush plate 6 via the hose 14. Part of the airflow blows the filter plate 5 through the air holes 15 on the surface of the brush plate 6, while a small portion of the airflow passes through the connector 25. The airflow enters the nozzle 26. Since the outlet of the nozzle 26 is directed towards the transmission point between the slider 12 and the lead screw 8, the high-pressure airflow blown out of the nozzle 26 can directly and directionally clean the surface of the lead screw 8 and the contact gap between the slider 12 and the lead screw 8. As the servo motor 16 drives the lead screw 8 to rotate forward and backward, and drives the brush plate 6 to slide back and forth along the filter plate 5, the nozzle 26 moves synchronously with the brush plate, realizing dynamic cleaning of the entire section of the lead screw 8. This process can promptly remove the fine impurities attached to the surface of the lead screw 8, prevent the formation of carbon deposits and scale, ensure smooth transmission between the lead screw 8 and the slider 12, reduce mechanical wear, and extend the maintenance cycle and service life of the equipment.

[0020] The base 13 has ventilation filter plates 17 fixed to both sides by screws, which can provide ventilation and heat dissipation for the internal equipment of the base 13 and prevent external impurities from entering. The catalytic reaction chamber 3 is equipped with a catalytic plate 18, and both the catalytic plate 18 and the filter plate 5 are connected to guide rails 19 on both sides. The catalytic plate 18 and the filter plate 5 are slidably embedded into the pre-set guide groove in the top of the processing box 1 through the guide rails 19, and slide longitudinally into the processing box 1 along the guide groove. This can realize the quick assembly and disassembly of the catalytic plate 18 and the filter plate 5, which is convenient for regular replacement or maintenance and improves the equipment maintenance efficiency. The inner side wall of the guide groove is embedded with a high-temperature resistant silicone sealing gasket. The sealing gasket is tightly attached to the surface of the guide rail 19 to form a sealing surface, which effectively avoids air leakage when inserted. When the catalytic plate 18 and the filter plate 5 need to be disassembled and replaced for long-term use, they can be separated simply by pulling them upward along the guide groove. This can realize the quick assembly and disassembly of the catalytic plate 18 and the filter plate 5, and effectively avoid air leakage when inserted, which is convenient for regular replacement or maintenance and improves the equipment maintenance efficiency.

[0021] The bottom of the cyclone dust collector 9 is connected to the mounting bracket 20, and the bottom of the mounting bracket 20 is connected to the processing box 1, which can provide a stable support for the cyclone dust collector 9 and ensure its secure installation. The bottom of the cyclone dust collector 9 is connected to the collection box 21 through a flange, which facilitates the installation and disassembly of the collection box 21 and makes it convenient to clean the collected impurities. The top of the cyclone dust collector 9 is equipped with a dust removal fan 22, which can provide power for the rotating airflow inside the cyclone dust collector 9 and enhance the dust removal effect. The surface of the collection box 21 is hinged with a sealing door 23 and the collection box 21 is also equipped with a collection hopper 24. The sealing door 23 can ensure the sealing of the collection box 21 and prevent impurities from leaking. The collection hopper 24 facilitates the centralized collection and cleaning of impurities.

[0022] This waste gas treatment uses a catalytic converter. Waste gas enters the intake chamber 2 of the treatment chamber 1 through an external intake pipe, allowing it to flow through a filter plate 5. The filter plate 5 filters the incoming waste gas, preventing impurities from adhering to the surface of the catalytic plate 18 and forming a covering layer, which would affect the contact efficiency of the subsequent catalytic reaction. The filtered waste gas then enters the catalytic reaction chamber 3 and comes into contact with the catalytic plate 18. The catalytic plate 18 is loaded with a honeycomb catalyst carrier, on which the catalyst is uniformly coated. The waste gas is guided by baffles inside the catalytic plate 18, ensuring full contact with the catalytic plate 18. Under the action of the catalyst, harmful substances are activated and undergo oxidation reactions (such as organic oxidation). The catalytic reaction chamber 3 is wrapped with an insulation layer, and an electric heating element is embedded in the outer wall of the catalytic reaction chamber 3 in the treatment box 1. At the beginning of the start-up, the electrical energy is converted into heat energy to preheat the chamber to the basic temperature required for the reaction, maintain the appropriate temperature required for the reaction, and ensure the stability of the catalyst activity. The clean gas that has completed the catalytic reaction enters the gas outlet chamber 4. Finally, the purified gas is discharged through the gas outlet chamber 4 to the gas outlet pipe set externally. The end of the gas outlet pipe is equipped with an activated carbon adsorption layer to perform final purification on any trace amounts of harmful substances that may remain, ensuring the safety of the emitted gas.

[0023] When impurities accumulate to a certain thickness on the surface of filter plate 5, after the equipment stops, the operator can start the servo motor 16 via an external controller. The servo motor 16 drives the lead screw 8 to rotate through the reduction gear set. The nut on the lead screw 8 drives the slider 12 to reciprocate along the slide bar 11 parallel to the filter plate 5. The brush plate 6 connected to the slider 12 moves synchronously, and the bristles penetrate into the mesh of the filter plate 5 for mechanical cleaning. At the same time, the compressed air generated by the high-pressure blower 7 is delivered to the hollow brush plate 6 through the hose 14 and sprayed out through the air blowing holes 15 distributed on the surface of the brush plate 6. The airflow direction forms an angle with the movement direction of the brush plate 6, blowing the brushed impurities toward the dust collection pipe 10. Meanwhile, the dust removal blower 22 blows from the top of the dust collector. The air is drawn out, and the impurities in the treatment box 1 enter the dust inlet pipe 10 under the negative pressure of the airflow and are transported to the cyclone dust collector 9. Under the action of the dust removal fan 22, a rotating airflow from top to bottom is formed inside the cyclone dust collector 9. The impurity particles move towards the cylinder wall under the action of centrifugal force and slide down the cylinder wall to the bottom collection hopper 24. The conical structure at the bottom of the cyclone dust collector 9 can enhance the rotation intensity of the airflow, so that even fine particles can be effectively separated. The separated dust particles can fall into the collection hopper 24 in the collection box 21. When the impurities in the collection hopper 24 accumulate to a certain amount, the valve of the dust inlet pipe 10 can be closed and the sealing door 23 can be opened to pull out the collection hopper 24 and clean the impurities in the collection hopper 24.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A catalytic exhaust gas treatment device for exhaust gas treatment, characterized by comprising: include: The treatment box (1) is provided with an air inlet chamber (2), a catalytic reaction chamber (3) and an air outlet chamber (4) connected in sequence, which can realize the closed-loop flow of waste gas from introduction to exhaust after the completion of catalytic reaction; The filter plate (5) is slidably embedded in the top of the processing box (1) to achieve quick insertion and assembly. The catalytic reaction chamber (3) is provided with a cleaning component for cleaning the filter plate (5). The cleaning component includes a brush plate (6) adapted to the mesh size of the filter plate (5), a high-pressure blower (7), and a screw (8). The brush plate (6) is driven to slide back and forth along the surface of the filter plate (5) by the forward and reverse rotation of the screw (8), so that the brush plate (6) cooperates with the high-pressure airflow blown out by the high-pressure blower (7) during the cleaning process to blow off the impurities brushed on the filter plate (5). Cyclone dust collector (9) is located on the top of the processing box (1), and the dust inlet of the cyclone dust collector (9) is connected to the catalytic reaction chamber (3) through the dust inlet pipe (10). The centrifugal force field is formed by the rotating airflow inside the cyclone dust collector (9), so that the dust particles are thrown into the cyclone dust collector (9) for collection under the action of centrifugal force.

2. The catalytic waste gas processor for waste gas treatment according to claim 1, characterized in that: The lead screw (8) is rotatably connected to the catalytic reaction chamber (3) via a bearing, and the slider (12) connected to one end of the brush plate (6) is connected to the lead screw (8) via a lead screw nut.

3. The catalytic exhaust processor for treating exhaust gas according to claim 1, characterized by: The catalytic reaction chamber (3) is connected to a slide rod (11) and a slider (12) is slidably sleeved on the slide rod (11). The bottom of the processing box (1) is connected to a base (13) and a high-pressure blower (7) is located in the base (13).

4. The catalytic type exhaust gas treatment device for exhaust gas treatment according to claim 3, characterized by: The brush plate (6) is hollow and has several air holes (15) evenly distributed on its surface. The base (13) is equipped with a servo motor (16) and the output shaft of the servo motor (16) is connected to the lead screw (8).

5. The catalytic exhaust processor for treating exhaust gas according to claim 2, characterized by: The outlet of the high-pressure blower (7) is connected to the hollow brush plate (6) through the hose (14). The bottom of the brush plate (6) is connected to the connector (25) and the bottom of the connector (25) is connected to the nozzle (26). The outlet of the nozzle (26) faces the transmission point of the slider (12) and the lead screw (8).

6. The catalytic exhaust processor for treating exhaust gas according to claim 3, wherein: The base (13) is fixed with ventilation filter plates (17) by screws on both sides. The catalytic reaction chamber (3) is provided with a catalytic plate (18) and both the catalytic plate (18) and the filter plate (5) are connected with guide slides (19). The catalytic plate (18) and the filter plate (5) are slidably embedded into the pre-set guide slide groove in the top of the processing box (1) through the guide slides (19) and slide longitudinally into the processing box (1).

7. The catalytic exhaust processor for treating exhaust gas according to claim 1, characterized by: The bottom of the cyclone dust collector (9) is connected to a mounting bracket (20), and the bottom of the mounting bracket (20) is connected to the processing box (1). The bottom of the cyclone dust collector (9) is connected to a collection box (21) via a flange.

8. The catalytic type exhaust gas treatment device for waste gas treatment according to claim 7, characterized in that: The cyclone dust collector (9) is equipped with a dust removal fan (22) on top, and the surface of the collection box (21) is hinged with a sealing door (23) and the collection box (21) is also equipped with a collection hopper (24).

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