A volatile organic compound waste gas catalytic oxidation reaction device with low resistance

Abstract

The utility model discloses a volatile organic compound waste gas catalytic oxidation reaction device of low resistance belongs to waste gas treatment technical field, and it includes: the installation bottom plate, the top fixed mounting of installation bottom plate has the fixed shell, the lower inner wall fixed mounting of fixed shell has the absorption box, the top of absorption box is opened and is connected the mouth, the lateral wall of absorption box and the top fixed mounting of installation bottom plate all have the gas duct, reaction device, including the fixed frame of fixed connection in the inner wall of fixed shell, the inner wall of fixed frame is slidably installed with catalytic board, and the fixed mouth is opened to catalytic board, and the inner wall of fixed frame is slidably connected with fixed scraper. The utility model can clean the water on catalytic board through the scraper, and cooperate the up and down vibration of catalytic board, thereby just love that catalytic board surface water is cleaned thoroughly, avoids catalytic board to be covered with water, leads to the takeoff and cannot fully contact with catalytic class, and the speed of waste gas decomposition is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a low-resistance catalytic oxidation reaction device for volatile organic waste gas. Background Technology

[0002] With the development of technology, factories are generating more and more waste gas during production. In order to protect the environment, the waste gas needs to be treated before it can be discharged. Catalytic oxidation is one of the methods used to treat organic waste gas. Through a catalyst, the waste gas is decomposed into water and carbon dioxide and discharged.

[0003] Existing catalytic oxidation reactors for organic waste gas lack the ability to clean water during use. The water generated during the reaction coats the outside of the catalyst, preventing the catalyst from fully contacting the waste gas. As a result, the waste gas is difficult to decompose quickly, which is detrimental to the use of the equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a low-resistance catalytic oxidation reaction device for volatile organic compound waste gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-resistance catalytic oxidation reactor for volatile organic compound (VOC) waste gas includes: a mounting base plate, a fixed outer shell fixedly mounted on the top of the mounting base plate, an absorption box fixedly mounted on the lower inner wall of the fixed outer shell, a connection port at the top of the absorption box, and gas guide pipes fixedly mounted on both the side wall of the absorption box and the top of the mounting base plate; a reaction device including a fixed frame fixedly connected to the inner wall of the fixed outer shell, a catalytic plate slidably mounted between the inner walls of the fixed frame, a fixed through-hole on the catalytic plate, a fixed scraper slidably connected between the inner walls of the fixed frame, the bottom end of the fixed scraper abutting against the catalytic plate, the fixed scraper employing a telescopic structure with a built-in spring, and a driving structure mounted on the fixed outer shell.

[0007] Preferably, the drive structure includes a motor fixedly connected to the side wall of the fixed housing, a reciprocating lead screw rotatably connected between the left and right inner walls of the fixed frame, the reciprocating lead screw passing through the corresponding fixed scraper and mechanically matching the fixed scraper, wherein one of the reciprocating lead screws passes through the inner wall of the fixed housing and is fixedly connected to the output end of the motor, and the reciprocating lead screws are connected to each other by a belt drive assembly.

[0008] Preferably, a sliding block is fixedly connected to the side wall of the catalyst plate, a sliding groove corresponding to the sliding block is opened on the fixed frame, a fixed spring is fixedly connected between the sliding block and the inner wall of the sliding groove, a fixed cam is slidably sleeved on the reciprocating screw, and the fixed cam is rotatably connected to the corresponding fixed scraper.

[0009] Preferably, the fixed openings on the two catalyst plates are located at different positions, and the catalyst plates are tilted downwards toward the fixed openings.

[0010] Preferably, a control valve is rotatably mounted on the air guide pipe.

[0011] Preferably, the top of the absorption box is inclined downwards towards the middle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: it can clean the water on the catalytic plate by scraping, and with the up and down vibration of the catalytic plate, the water on the surface of the catalytic plate is cleaned, avoiding the catalytic plate being covered by water, which would prevent the fly from fully contacting the catalytic plate, thus accelerating the decomposition of waste gas, improving the operating efficiency of the device, and benefiting the use of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a low-resistance catalytic oxidation reaction device for volatile organic compound waste gas proposed in this utility model.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a side-view three-dimensional structural diagram of a low-resistance catalytic oxidation reaction device for volatile organic waste gas proposed in this utility model.

[0016] In the diagram: 1. Mounting base plate, 2. Fixed outer shell, 3. Absorption box, 4. Connection port, 5. Air guide pipe, 6. Fixed frame, 7. Catalytic plate, 8. Fixed scraper, 9. Reciprocating screw, 10. Fixed cam, 11. Sliding groove, 12. Fixed spring, 13. Motor, 14. Fixed port, 15. Belt drive assembly. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Reference Figures 1-3A low-resistance catalytic oxidation reactor for volatile organic compound waste gas includes: a mounting base plate 1, a fixed outer shell 2 fixedly mounted on the top of the mounting base plate 1, an absorption box 3 fixedly mounted on the lower inner wall of the fixed outer shell 2, a connection port 4 opened at the top of the absorption box 3, and air guide pipes 5 fixedly mounted on both the side wall of the absorption box 3 and the top of the mounting base plate 1. Waste gas enters the absorption box 3 from the lower air guide pipe 5, water in the absorption box 3 washes away dust and other impurities in the waste gas, and then the clean waste gas is discharged from the absorption box 3 from the connection port 4.

[0019] The reaction device includes a fixed frame 6 fixedly connected to the inner wall of the fixed housing 2. A catalyst plate 7 is slidably installed between the inner walls of the fixed frame 6. The catalyst plate 7 is a mesh plate with a catalyst installed. When the exhaust gas passes over the catalyst plate 7, it will react under the action of the catalyst to produce hydrated carbon dioxide. A fixed opening 14 is opened on the catalyst plate 7. A fixed scraper 8 is slidably connected between the inner walls of the fixed frame 6. The bottom end of the fixed scraper 8 abuts against the catalyst plate 7. The fixed scraper 8 adopts a telescopic structure with a built-in spring to ensure that the fixed scraper 8 and the catalyst plate 7 are kept in abutting state. A driving structure is installed on the fixed housing 2.

[0020] After the exhaust gas reacts through the catalyst plate 7, the generated water will remain on the catalyst plate 7. Under the action of the drive structure, the reciprocating screw 9 rotates, causing the fixed scraper 8 that is mechanically matched with it to move back and forth. When the fixed scraper 8 moves back and forth, it scrapes off the water on the surface of the catalyst plate 7. The water flows out from the fixed opening 14. After the water is scraped off, the catalyst is no longer wrapped inside the water, so that the reaction can proceed.

[0021] The drive structure includes a motor 13 fixedly connected to the side wall of the fixed housing 2, and a reciprocating screw 9 rotatably connected between the left and right inner walls of the fixed frame 6. The reciprocating screw 9 passes through the corresponding fixed scraper 8 and is mechanically matched with the fixed scraper 8. One of the reciprocating screws 9 passes through the inner wall of the fixed housing 2 and is fixedly connected to the output end of the motor 13. The reciprocating screws 9 are connected to each other through a belt drive assembly 15.

[0022] After the motor 13 starts, its output end drives the corresponding reciprocating screw 9 to rotate. Under the action of the belt drive assembly 15, both fixed reciprocating screws 9 rotate.

[0023] A sliding block is fixedly connected to the side wall of the catalyst plate 7. A sliding groove 11 corresponding to the sliding block is opened on the fixed frame 6. A fixed spring 12 is fixedly connected between the sliding block and the inner wall of the sliding groove 11. A fixed cam 10 is slidably sleeved on the reciprocating screw 9. The fixed cam 10 is rotatably connected to the corresponding fixed scraper 8. When the reciprocating screw 9 rotates, the fixed cam 10 fixedly sleeved on the reciprocating screw 9 rotates accordingly, thereby pushing the catalyst plate 7 to move. In conjunction with the fixed spring 12, the catalyst plate 7 vibrates up and down, shaking the water at the bottom of the catalyst plate 7 off.

[0024] The fixed openings 14 on the two catalyst plates 7 are located at different positions, and the catalyst plates 7 are tilted downwards towards the fixed openings 14 so that the scraped water can flow down; a control valve is rotatably installed on the gas pipe 5 to prevent the water in the absorption tank 3 from flowing back into the gas pipe 5; the top of the absorption tank 3 is tilted downwards towards the middle so that the falling water can flow into the absorption tank 3 from the connection port 4.

[0025] In use, the waste gas is first introduced into the absorption box 3. The water in the absorption box 3 washes away dust and other impurities in the waste gas. Then, the clean waste gas is discharged from the connection port 4. The gas flows upward through the catalytic plate 7, thereby reacting to generate water and carbon dioxide. The motor 13 is started. After the motor 13 starts, its output end drives the corresponding reciprocating screw 9 to rotate. Under the action of the belt drive assembly 15, both fixed reciprocating screws 9 rotate, causing the fixed scraper 8 that is mechanically matched with them to move back and forth. When the fixed scraper 8 moves back and forth, it scrapes off the water on the surface of the catalytic plate 7. At the same time, when the reciprocating screw 9 rotates, the fixed cam 10 fixedly sleeved on the reciprocating screw 9 rotates accordingly, thereby pushing the catalytic plate 7 to move. With the help of the fixed spring 12, the catalytic plate 7 vibrates up and down, shaking off the water at the bottom of the catalytic plate 7. The water flows out from the fixed opening 14. After the water is scraped off, the catalyst is no longer wrapped inside the water, so that the reaction can proceed.

Claims

1. A volatile organic compound exhaust gas catalytic oxidation reaction device of low resistance, characterized by comprising: include: The mounting base plate (1) is fixedly mounted with a fixed outer shell (2) at the top. An absorption box (3) is fixedly mounted on the lower inner wall of the fixed outer shell (2). A connection port (4) is opened at the top of the absorption box (3). A gas guide pipe (5) is fixedly mounted on both the side wall of the absorption box (3) and the top of the mounting base plate (1). The reaction device includes a fixed frame (6) fixedly connected to the inner wall of the fixed outer shell (2). A catalyst plate (7) is slidably mounted between the inner walls of the fixed frame (6). A fixed through-hole (14) is opened on the catalyst plate (7). A fixed scraper (8) is slidably connected between the inner walls of the fixed frame (6). The bottom end of the fixed scraper (8) abuts against the catalyst plate (7). The fixed scraper (8) adopts a telescopic structure with a built-in spring. A driving structure is installed on the fixed outer shell (2).

2. The volatile organic compound waste gas catalytic oxidation reaction device of claim 1, wherein, The drive structure includes a motor (13) fixedly connected to the side wall of the fixed housing (2), and a reciprocating screw (9) rotatably connected between the left and right inner walls of the fixed frame (6). The reciprocating screw (9) passes through the corresponding fixed scraper (8) and is mechanically matched with the fixed scraper (8). One of the reciprocating screws (9) passes through the inner wall of the fixed housing (2) and is fixedly connected to the output end of the motor (13). The reciprocating screws (9) are connected to each other through a belt drive assembly (15).

3. The low resistance volatile organic compound exhaust gas catalytic oxidation reaction apparatus according to claim 2, characterized by, A sliding block is fixedly connected to the side wall of the catalyst plate (7), and a sliding groove (11) corresponding to the sliding block is opened on the fixed frame (6). A fixed spring (12) is fixedly connected between the sliding block and the inner wall of the sliding groove (11). A fixed cam (10) is slidably sleeved on the reciprocating screw (9), and the fixed cam (10) is rotatably connected to the corresponding fixed scraper (8).

4. The low resistance volatile organic compound exhaust gas catalytic oxidation reaction apparatus according to claim 1, characterized by, The fixed openings (14) on the two catalyst plates (7) are located at different positions, and the catalyst plates (7) are tilted downwards toward the fixed openings (14).

5. The low resistance volatile organic compound exhaust gas catalytic oxidation reaction apparatus according to claim 1, characterized by, A control valve is rotatably mounted on the air duct (5).

6. The low-resistance catalytic oxidation reactor for volatile organic compound waste gas according to claim 1, characterized in that, The top of the absorption box (3) is tilted downwards towards the middle.

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