Catalytic combustion device for treating low-concentration organic waste gas

Abstract

The utility model discloses a catalytic combustion device for treating low-concentration organic waste gas. The catalytic combustion device comprises a box body, a catalytic combustion furnace, a cleaning mechanism, a filter plate, an activated carbon adsorption plate and a fan, the cleaning mechanism, the filter plate, the activated carbon adsorption plate and the fan are arranged in the box body, the catalytic combustion furnace is arranged on one side of the box body, and the filter plate is arranged between the cleaning mechanism and the activated carbon adsorption plate; waste gas firstly passes through the filter plate to filter dust, then organic waste gas is adsorbed through the activated carbon adsorption plate, then adsorbed clean gas is discharged, and gas discharged after combustion of the catalytic combustion furnace is sucked through the fan to heat and desorb the activated carbon adsorption plate. And the heated and desorbed organic waste gas enters a catalytic combustion furnace for catalytic combustion. According to the waste gas treatment device, waste gas can be subjected to dust removal pretreatment before combustion through the filter plate, the filter plate is cleaned through the cleaning mechanism, the amount of dust attached to the filter plate is reduced, and it can be guaranteed that continuous entering of the waste gas is not affected when settled dust is treated.

Description

Technical Field

[0001] The utility model belongs to the technical field of organic waste gas treatment, and in particular relates to a catalytic combustion device for treating low-concentration organic waste gas. Background Art

[0002] Catalytic combustion is a relatively common and widely used method for treating organic waste gas. It can quickly treat large volumes of waste gas. However, if the waste gas contains a large amount of dust, it will directly lead to incomplete combustion, thereby affecting the purification effect and efficiency of the waste gas. Therefore, it is necessary to remove dust from the waste gas and perform pre-treatment before combustion.

[0003] After searching, the prior art publication number CN216521726U discloses a catalytic combustion device for purifying organic waste gas to avoid secondary pollution. While the use of a dust filter in this solution achieves dust removal pretreatment before waste gas combustion, it has a drawback, namely, it is difficult to dispose of the filtered dust in a timely and convenient manner.

[0004] Further searches revealed a prior art publication number CN218209608U, which describes a catalytic combustion device for treating organic waste gas. This device is capable of treating dust on the filter itself, but also has corresponding drawbacks. The device comprises a base, a preheating box disposed on one side above the base, a filter assembly mounted within the preheating box, and a preheating assembly disposed on one side of the filter assembly. The device not only filters dust from the exhaust gas through the filter, but also cleans the filter after filtration, centrally treating the dust.

[0005] According to the instructions, it is clear that the dust box is connected from top to bottom, so the dust is collected and settled at the bottom of the dust box. However, when air is taken in at the air inlet, a part of the exhaust gas will sink due to the obstruction of the filter, and then the dust settled at the bottom will be blown up and lifted up, which will clog the filter again. The only way to avoid the above shortcomings is to transfer the settled dust and then let it enter the exhaust gas for treatment. However, this method will delay the treatment time and greatly reduce the treatment efficiency. Therefore, a treatment method is needed to prevent the settled dust from being blown up again by the exhaust gas, and the transfer of dust will not delay or hinder the continuous entry of the exhaust gas. Summary of the Invention

[0006] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a catalytic combustion device for treating low-concentration organic waste gas, which can pre-treat the waste gas by removing dust before combustion through a filter plate to improve the combustion efficiency; further, the filter plate can be cleaned by a cleaning mechanism to reduce the amount of dust attached to the filter plate, and at the same time, it can ensure that the treatment of settled dust will not affect the continuous entry of waste gas, thereby ensuring the waste gas treatment efficiency.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] A catalytic combustion device for treating low-concentration organic waste gas comprises a box, a catalytic combustion furnace, a cleaning mechanism, a filter plate, an activated carbon adsorption plate, and a fan; the cleaning mechanism, filter plate, activated carbon adsorption plate, and fan are arranged in the box, the catalytic combustion furnace is arranged on one side of the box, and the filter plate is arranged between the cleaning mechanism and the activated carbon adsorption plate; the waste gas first passes through the filter plate to filter dust, and then passes through the activated carbon adsorption plate to adsorb organic waste gas, and then the clean gas after adsorption is discharged, and then the gas discharged after combustion in the catalytic combustion furnace is sucked by the fan to heat and desorb the activated carbon adsorption plate, and the concentrated organic waste gas after heating and desorption enters the catalytic combustion furnace for catalytic combustion.

[0009] The box body is respectively provided with a first slot and a second slot, a slide groove is provided on the inner wall of the box body for limiting the sliding of the guide filter plate, a through slot is provided on the top of the box body, a first air inlet pipe is provided on one side of the box body, and a first exhaust pipe is provided on the other side; a first partition, a second partition and a third partition are provided inside the box body; a dust exhaust window is provided at the bottom of the box body for handling dust; a through hole is provided on the second partition body, a plug block is provided in the through hole, a second electric push rod is provided on one side of the plug block and is fixed to the third partition plate; the top shaft of the second electric push rod is fixedly connected to the plug block, and pushes the plug block to plug into the through hole and the filter plate to fix and support the filter plate.

[0010] The filter plate includes a mounting frame and a filter screen arranged on the mounting frame. Slide blocks are provided on both sides of the mounting frame for inserting into a slide groove for sliding. The mounting frame is provided with a limiting hole for inserting a plug-in block; the slide blocks fit into the slide groove.

[0011] The cleaning mechanism is arranged on one side of the filter plate, and includes a motor, a mounting bracket, a brush roller, a dust cover, a first support plate, a second support plate, a third support plate, an arc shaft, and a first spring; the first support plate is fixedly connected to the inner wall of the box, the motor is fixed to the outer wall of the box, a lead screw is provided at the end of the motor shaft, the lead screw is provided inside the box and threadedly connected to the mounting bracket, the dust cover is sleeved with the lead screw and connected to the mounting bracket, the inner wall of the box, and the first support plate; the brush roller is provided on the mounting bracket, a top rod is provided on one side of the mounting bracket, a guide rod is provided on the other side and is slidably connected to the box; the second support plate is fixedly connected to the box; the third support plate is provided with a pin shaft and is rotatably connected to the second support plate; one end of the arc shaft is fixedly connected to the third support plate, and the other end is slidably connected to the second support plate, the arc shaft is set with the pin shaft at the end of the third support plate as the center of a circle, and the first spring is sleeved on the arc shaft for guide control.

[0012] The catalytic combustion furnace is provided with a second air inlet pipe connected to the side wall of the box on one side of the activated carbon adsorption plate. A second exhaust pipe is provided at one end of the catalytic combustion furnace. The second exhaust pipe is provided with a return pipe in parallel with a fan, and the fan is connected to the third partition under the activated carbon adsorption plate for hot air supply.

[0013] Furthermore, in order to facilitate the installation of the filter plate, a lifting mechanism is provided on the outer wall of the box, including a first electric push rod and a support plate. The support plate has the same width as the second slot, and the support plate is arranged between the first partition plate and the second partition plate. A pair of first electric push rods are provided and are arranged on both sides of the box body. The top shaft of the first electric push rod is fixedly connected to the support plate. When the filter plate is replaced, the exhaust gas is stopped from entering. First, the filter plate is placed on the support plate, and then the second electric push rod controls the plug to exit the through hole and the limit hole. Then the second electric push rod lifts the support plate and pushes the filter plate above the filter plate to exit the box body along the through groove and is supported by the limit rod. It is worth noting that when the filter plate is in use, the through groove can be blocked by the installation frame to prevent air leakage.

[0014] Furthermore, in order to prevent excessive heat loss, a sealing plate slidably connected to the box body is provided above the second partition to block the channel between the activated carbon adsorption plate and the filter plate; the sealing plate can be directly inserted and pulled out through the side wall of the box body to close and open the channel; it can be inserted for sealing during thermal desorption of the activated carbon adsorption plate to avoid excessive heat dispersion.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) The present invention is provided with a filter plate and a cleaning mechanism for the filter plate, and the motor in the cleaning mechanism drives the brush roller to move up and down, which can effectively sweep away the dust attached to the filter plate; the dust cover is provided on the lead screw to effectively protect the lead screw from being attached to dust and affecting the transmission; further, when the mounting frame moves downward, the push rod can push the third support plate to rotate around the pin shaft as the axis, so that the accumulated dust sinks to the bottom of the box; when the mounting frame rises, the third support plate is pushed back to the first partition by the push of the first spring to prevent air from entering on both sides of the third support plate, thereby preventing organic waste gas from sinking and blowing up the dust deposited on the bottom under the obstruction of the filter plate after entering, causing it to attach to the filter plate again and block the filter plate, and the dust will not be delayed or delayed when transferring the dust through the dust exhaust window, thereby greatly improving and ensuring the waste gas treatment efficiency and effect.

[0017] 2) In order to prevent excessive heat loss, a sealing plate slidably connected to the box body is provided above the second partition to block the passage between the activated carbon adsorption plate and the filter plate; the sealing plate can be directly inserted and withdrawn through the closable opening provided on the side wall of the box body to close and open the passage; it can be inserted to seal during thermal desorption of the activated carbon adsorption plate to prevent excessive dispersion of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attachment Figure 1 This is a schematic structural diagram of a catalytic combustion device for treating low-concentration organic waste gas in the utility model;

[0019] Attachment Figure 2This is a schematic diagram of the internal structure of the box Figure 1 ;

[0020] Attachment Figure 3 This is a schematic diagram of the internal structure of the box Figure 2 ;

[0021] Attachment Figure 4 It is a structural diagram of the filter plate;

[0022] Attachment Figure 5 It is a structural diagram of the plug-in block;

[0023] Attachment Figure 6 It is a structural diagram of the box;

[0024] In the figure: 1. Box; 101. First slot; 102. Second slot; 103. Slide; 104. Through slot; 11. First air inlet pipe; 12. First exhaust pipe; 13. Dust exhaust window; 14. First baffle; 15. Second baffle; 151. Through hole; 152. Insert; 153. Second electric push rod; 16. Third baffle; 17. Limit rod; 2. Catalytic combustion furnace; 21. Second exhaust pipe; 22. Return pipe; 23. Second air inlet pipe;

[0025] 3. Cleaning mechanism; 31. Motor; 32. Mounting frame; 321. Push rod; 322. Guide rod; 33. Brush roller; 34. Dust cover; 35. First support plate; 36. Second support plate; 37. Third support plate; 38. Arc shaft; 39. First spring; 4. Filter plate; 41. Mounting frame; 42. Filter screen; 43. Slider; 44. Limiting hole; 5. Lifting mechanism; 51. First electric push rod; 52. Support plate; 6. Activated carbon adsorption plate; 8. Fan; 9. Sealing plate. DETAILED DESCRIPTION

[0026] To facilitate understanding by those skilled in the art, Figure 1-6 The technical solution of the utility model is further described in detail.

[0027] A catalytic combustion device for treating low-concentration organic waste gas, comprising a housing 1, a catalytic combustion furnace 2, a cleaning mechanism 3, a filter plate 4, an activated carbon adsorption plate 6, and a fan 8; the cleaning mechanism 3, the filter plate 4, the activated carbon adsorption plate 6, and the fan 8 are arranged in the housing 1, the catalytic combustion furnace 2 is arranged on one side of the housing 1, and the filter plate 4 is arranged between the cleaning mechanism 3 and the activated carbon adsorption plate 6; the waste gas first passes through the filter plate 4 to filter dust, and then passes through the activated carbon adsorption plate 6 to adsorb organic waste gas, and then the clean gas after adsorption is discharged, and then the gas discharged after combustion in the catalytic combustion furnace 2 is sucked by the fan 8 to heat and desorb the activated carbon adsorption plate 6, and the concentrated organic waste gas after heating and desorption enters the catalytic combustion furnace 2 for catalytic combustion.

[0028] A first slot 101 and a second slot 102 are respectively provided on both sides of the box body 1, a slide groove 103 is provided on the inner wall of the box body 1 for limiting the sliding of the guide filter plate 4, a through slot 104 is provided on the top of the box body 1, a first air inlet pipe 11 is provided on one side of the box body 1, and a first exhaust pipe 12 is provided on the other side; a first partition plate 14, a second partition plate 15 and a third partition plate 16 are provided inside the box body 1; a dust exhaust window 13 is provided at the bottom of the box body 1 for handling dust; a through hole 151 is provided on the second partition plate 15, a plug block 152 is provided in the through hole 151, a second electric push rod 153 is provided on one side of the plug block 152 and is fixed on the third partition plate 16; the top shaft of the second electric push rod 153 is fixedly connected to the plug block 152, and pushes the plug block 152 to plug into the through hole 151 and the filter plate 4 to fix and support the filter plate 4.

[0029] The filter plate 4 includes a mounting frame 41 and a filter screen 42 arranged on the mounting frame 41. Sliders 43 are provided on both sides of the mounting frame 41 for inserting into the slide groove 103 for sliding. The mounting frame 41 is provided with limiting holes 44 for inserting the plug 152; the slides 43 fit into the slide groove 103.

[0030] The cleaning mechanism 3 is arranged on one side of the filter plate 4, and includes a motor 31, a mounting bracket 32, a brush roller 33, a dust cover 34, a first support plate 35, a second support plate 36, a third support plate 37, an arc shaft 38, and a first spring 39; the first support plate 35 is fixedly connected to the inner wall of the box body 1, the motor 31 is fixed to the outer wall of the box body 1, a screw is provided at the end of the motor 31 shaft, the screw is arranged inside the box body 1 and is threadedly connected to the mounting bracket 32, the dust cover 34 is sleeved with the screw and connected to the mounting bracket 32, the inner wall of the box body 1, the first support plate 35; The brush roller 33 is arranged on the mounting frame 32, and a top rod 321 is provided on one side of the mounting frame 32, and a guide rod 322 is provided on the other side and is slidably connected to the box body 1; the second support plate 36 is fixedly connected to the box body 1; the third support plate 37 is provided with a pin shaft and is rotatably connected to the second support plate 36; one end of the arc shaft 38 is fixedly connected to the third support plate 37, and the other end is slidably connected to the second support plate 36. The arc shaft 38 is set with the pin shaft at the end of the third support plate 37 as the center of the circle, and the first spring 39 is sleeved on the arc shaft 38 for guiding control.

[0031] The catalytic combustion furnace 2 is provided with a second air inlet pipe 23 which is connected to the side wall of the box body 1 on one side of the activated carbon adsorption plate 6. A second exhaust pipe 21 is provided at one end of the catalytic combustion furnace 2. The second exhaust pipe 21 is provided with a return pipe 22 which is connected in parallel with a fan 8. The fan 8 is connected to the third partition 16 under the activated carbon adsorption plate 6 for hot air supply.

[0032] Furthermore, in order to facilitate the installation of the filter plate 4, a lifting mechanism 5 is provided on the outer wall of the box body 1, including a first electric push rod 51 and a support plate 52. The support plate 52 has the same width as the second slot 102, and the support plate 52 is arranged between the first partition plate 14 and the second partition plate 15. The first electric push rod 51 is provided with a pair and is arranged on both sides of the box body 1. The top shaft of the first electric push rod 51 is fixedly connected to the support plate 52. When the filter plate 4 is replaced, the exhaust gas is stopped from entering. First, the filter plate 4 is placed on the support plate 52, and then the second electric push rod 153 controls the plug 152 to exit the through hole 151 and the limit hole 44. Then the second electric push rod 153 lifts the support plate 52 and the filter plate 4 to push the upper filter plate 4 along the through groove 104 to exit the box body 1 and is supported by the limit rod 17. It is worth noting that when the filter plate 4 is in use, the through groove 104 can be blocked by the installation frame 41 to prevent air leakage.

[0033] Furthermore, in order to prevent excessive heat loss, a sealing plate 9 is provided above the second partition 15 and is slidably connected to the box body 1 to block the channel between the activated carbon adsorption plate 6 and the filter plate 4; the sealing plate 9 can be directly inserted and pulled out through the side wall of the box body 1 to close and open the channel; it can be inserted for sealing when performing thermal desorption of the activated carbon adsorption plate 6 to avoid excessive heat dispersion.

[0034] A catalytic combustion device for treating low-concentration organic waste gas, the working process is as follows:

[0035] First, the exhaust gas enters the box body 1 through the first air inlet pipe 11 and passes through the filter plate 4 to filter the dust and then enters the activated carbon adsorption plate 6 for adsorption treatment; the clean gas after adsorption is discharged through the first exhaust pipe 12, and then the fan 8 sucks the superheated gas discharged after incineration in the catalytic combustion furnace 2 through the return pipe 22 and transfers it to the activated carbon adsorption plate 6 for heating and desorption. The preheated concentrated organic waste gas after desorption enters the catalytic combustion furnace 2 through the second air inlet pipe 23 for incineration treatment, and is then discharged through the second exhaust pipe 21, thus forming a cycle.

[0036] During this period, the filter plate 4 is cleaned by the cleaning mechanism 3, the motor 31 drives the screw to rotate and then drives the mounting frame 32 to move, the filter plate 4 is brushed and dusted by the brush roller 33, and the push rod 321 moves down to push the third support plate 37 so that the dust enters the bottom and is collected and transferred through the dust exhaust window 13 for processing, so as to avoid the dust accumulating on the third support plate 37 and being blown up by the air during the subsequent air intake to block the filter plate 4.

[0037] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In summary, the electronic or electrical components including but not limited to electric push rods, motors, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art, and are not within the scope of protection of the present invention;

[0039] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A catalytic combustion device for treating low-concentration organic waste gas, comprising a housing, a catalytic combustion furnace, a cleaning mechanism, a filter plate, an activated carbon adsorption plate, and a fan; the cleaning mechanism, filter plate, activated carbon adsorption plate, and fan are arranged in the housing, the catalytic combustion furnace is arranged on one side of the housing, and the filter plate is arranged between the cleaning mechanism and the activated carbon adsorption plate; It is characterized by The cleaning mechanism is arranged on one side of the filter plate, and includes a motor, a mounting bracket, a brush roller, a dust cover, a first support plate, a second support plate, a third support plate, an arc shaft, and a first spring; the first support plate is fixedly connected to the inner wall of the box, the motor is fixed to the outer wall of the box, a lead screw is provided at the end of the motor shaft, the lead screw is arranged inside the box and threadedly connected to the mounting bracket, the dust cover is sleeved with the lead screw and connected to the mounting bracket, the inner wall of the box, and the first support plate; the brush roller is arranged on the mounting bracket, a push rod is provided on one side of the mounting bracket, a guide rod is provided on the other side and is slidably connected to the box body; the second support plate is fixedly connected to the box body; the third support plate is provided with a pin shaft and is rotatably connected to the second support plate; one end of the arc shaft is fixedly connected to the third support plate, and the other end is slidably connected to the second support plate, the arc shaft is set with the pin shaft at the end of the third support plate as the center of a circle, and the first spring sleeves the arc shaft for guide control; The box body is respectively provided with a first slot and a second slot, a slide groove is provided on the inner wall of the box body for limiting the sliding of the guide filter plate, a through slot is provided on the top of the box body, a first air inlet pipe is provided on one side of the box body, and a first exhaust pipe is provided on the other side; a first partition, a second partition and a third partition are provided inside the box body; a dust exhaust window is provided at the bottom of the box body for handling dust; a through hole is provided on the second partition body, a plug block is provided in the through hole, a second electric push rod is provided on one side of the plug block and is fixed to the third partition plate; the top shaft of the second electric push rod is fixedly connected to the plug block, and pushes the plug block to plug into the through hole and the filter plate to fix and support the filter plate.

2. A catalytic combustion device for treating low-concentration organic waste gas according to claim 1, characterized in that The filter plate includes a mounting frame and a filter screen arranged on the mounting frame. Slide blocks are provided on both sides of the mounting frame for inserting into a slide groove for sliding. The mounting frame is provided with a limiting hole for inserting a plug-in block; the slide blocks fit into the slide groove.

3. A catalytic combustion device for treating low-concentration organic waste gas according to claim 1, characterized in that The catalytic combustion furnace is provided with a second air inlet pipe connected to the side wall of the box on one side of the activated carbon adsorption plate. A second exhaust pipe is provided at one end of the catalytic combustion furnace. The second exhaust pipe is provided with a return pipe in parallel with a fan, and the fan is connected to the third partition under the activated carbon adsorption plate for hot air supply.

4. A catalytic combustion device for treating low-concentration organic waste gas according to claim 1, characterized in that In order to facilitate the installation of the filter plate, a lifting mechanism is provided on the outer wall of the box, including a first electric push rod and a support plate. The support plate has the same width as the second slot and is arranged between the first partition plate and the second partition plate. A pair of first electric push rods are provided and are arranged on both sides of the box body. The top shaft of the first electric push rod is fixedly connected to the support plate.

5. A catalytic combustion device for treating low-concentration organic waste gas according to claim 1, characterized in that A sealing plate slidably connected to the box body is provided above the second partition plate to block the passage between the activated carbon adsorption plate and the filter plate.

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