Tail gas treatment device for chemical product production

Abstract

The utility model discloses a tail gas treatment device for chemical product production relates to tail gas treatment technical field, and the brake shaft of the filter plate is equipped in the middle part of processing jar, and the brake shaft is equipped with the brush plate structure of cleaning filter plate positive, negative face along its axial direction, and one end of brake shaft is equipped with the brake disc that drives spray water pipe swing. This design is based on the filter plate in processing jar to chemical tail gas carries out front filter treatment, and simultaneously in filter processing, utilizes brake shaft to drive cleaning brush plate rotation, carries out real -time brushing cleaning work to filter plate, always keeps the clean filtering characteristic of filter plate, and utilizes brake shaft to drive brake disc rotation, drives the combination reciprocating swing of spray water pipe and atomizing spray head, forms more diversified water curtain, and the particulate matter in tail gas adsorption settlement, and simultaneously take away the particulate matter under the brushing cleaning of filter plate, and it need not frequently replace filter plate part simultaneously, and can always keep efficient filter dust removal characteristic.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas treatment, and in particular to an exhaust gas treatment device for chemical product production. Background Technology

[0002] Chemical waste gas refers to toxic or corrosive gases emitted during chemical production processes. Its composition is complex and varies significantly across industries. In industries such as petrochemicals, building materials, and power, chemical waste gas often contains a high amount of particulate matter, including smoke, dust, and mist. Therefore, pre-treatment facilities are typically used to remove dust from the chemical waste gas to prevent clogging of subsequent treatment processes. For example, a tail gas treatment device for chemical product production (publication number CN219615121U) disclosed on the China Patent Network uses two sets of locking mechanisms to facilitate the cleaning of activated carbon filter plates one and two. Users can quickly remove activated carbon filter plates one and two from the hollow cone and the inside of the chemical production tank, greatly facilitating cleaning and improving cleaning efficiency.

[0003] However, the aforementioned patented and existing chemical waste gas treatment devices still have some shortcomings: Existing methods that use easily disassembled components for daily cleaning require shutdown for each cleaning operation, which is time-consuming and disrupts continuous treatment of chemical waste gas. Therefore, those skilled in the art have provided a waste gas treatment device for chemical product production to address the problems mentioned in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a tail gas treatment device for chemical product production, which solves the problem of inconvenient daily cleaning and maintenance of existing chemical tail gas treatment devices mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tail gas treatment device for chemical product production, comprising: a treatment tank; a partition ring frame disposed inside the treatment tank, wherein there is at least one set of partition ring frames and a filter plate is disposed inside the partition ring frame; a spray water pipe passing through the partition ring frame and disposed at the top of the treatment tank, wherein there is at least one set of spray water pipes and at least one set of atomizing nozzles is disposed along the pipe direction; and a brake shaft passing through the filter plate and disposed in the middle of the treatment tank, wherein the brake shaft is provided with a brush plate structure for cleaning the front and back sides of the filter plate along its axial direction, and a brake disc for driving the spray water pipe to swing is provided at one end of the brake shaft.

[0006] As a further technical solution of this utility model: the brush plate structure includes a first cleaning brush plate disposed on one side of the filter plate along the brake shaft axis and a second cleaning brush plate disposed on the other side of the filter plate along the brake shaft axis.

[0007] As a further technical solution of this utility model: the first cleaning brush plate and the second cleaning brush plate are arranged in a cross shape, and both the first cleaning brush plate and the second cleaning brush plate are provided with a soft cleaning brush.

[0008] As a further technical solution of this utility model: the atomizing nozzle is provided in multiple groups, and the multiple groups of atomizing nozzles are arranged on one side of the filter surface of the filter plate along the pipeline direction of the spray water pipe.

[0009] As a further technical solution of this utility model: the brake disc is provided with multiple sets of brake racks along its circumference, and one end of the spray water pipe is provided with a brake gear that meshes with the brake racks.

[0010] As a further technical solution of this utility model: the spray water pipe is provided with a bearing sleeve that is rotatably connected to the partition ring along its pipeline direction, and an eccentric wheel is provided on the pipeline of the spray water pipe.

[0011] As a further technical solution of this utility model: the inlet of the spray water pipe is connected to a branch water pipe, and the spray water pipe and the branch water pipe are connected by a sealing ring.

[0012] As a further technical solution of this utility model: a brake motor for driving the brake shaft is provided on one side of the processing tank.

[0013] As a further technical solution of this utility model: the upper end of the treatment tank is provided with an air inlet on one side, and the lower end of the treatment tank is provided with an air outlet on the other side.

[0014] As a further technical solution of this utility model: the lower end of the treatment tank has a sludge discharge trough with staggered filter plates, and the bottom of the sludge discharge trough is provided with a drain valve.

[0015] This utility model provides a tail gas treatment device for chemical product production, which has the following advantages compared with the prior art:

[0016] This chemical exhaust gas treatment device is designed to pre-filter chemical exhaust gas using a filter plate inside the treatment tank. Simultaneously, a brake shaft drives a cleaning brush to rotate, continuously cleaning the filter plate and maintaining its clean filtration characteristics. The brake shaft also drives a brake disc to rotate, causing a combination of spray pipes and atomizing nozzles to oscillate, creating a more diverse water curtain that adsorbs and settles particulate matter in the exhaust gas, while simultaneously carrying away the particulate matter cleaned from the filter plate. This device possesses highly efficient and durable filtration characteristics, eliminating the need for frequent filter plate replacements while maintaining consistently high-efficiency dust removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a tail gas treatment device for chemical product production.

[0018] Figure 2 A first cross-sectional view of a tail gas treatment device for chemical product production;

[0019] Figure 3 This is a second cross-sectional view of a tail gas treatment device for chemical product production.

[0020] Figure 4 This is a schematic diagram of the arrangement of cleaning brushes in a tail gas treatment device for chemical product production.

[0021] Figure 5 This is a schematic diagram of the layout of spray water pipes in a tail gas treatment device for chemical product production.

[0022] In the diagram: 1. Treatment tank; 2. Air inlet; 3. Air outlet; 4. Brake motor; 5. Brake shaft; 6. First cleaning brush plate; 7. Separating ring frame; 8. Filter plate; 9. Spray water pipe; 10. Atomizing nozzle; 11. Brake disc; 12. Brake rack; 13. Brake gear; 14. Sewage trough; 15. Drain valve; 16. Second cleaning brush plate; 17. Sealing ring sleeve; 18. Diverting water pipe; 19. Eccentric wheel; 20. Bearing sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example 1:

[0024] Please see Figure 1-4This utility model provides a technical solution for a tail gas treatment device for chemical product production: A tail gas treatment device for chemical product production includes a treatment tank 1. The upper end of the treatment tank 1 has an air inlet 2 on one side, and the lower end of the treatment tank 1 has an air outlet 3 on the other side. A partition ring frame 7 is provided inside the treatment tank 1, and a filter plate 8 is provided inside the partition ring frame 7. A brake shaft 5 is provided in the middle of the treatment tank 1, passing through the filter plate 8. A brake motor 4 driving the brake shaft 5 is provided on one side of the treatment tank 1. The brake shaft 5 has brush plate structures along its axial direction for cleaning the front and back sides of the filter plate 8, thus treating the chemical product tail gas. The exhaust gas from the product is delivered to the treatment tank 1 through the inlet 2. Utilizing the internal filter plate 8, particulate matter in the exhaust gas undergoes pre-filtration. The filtered exhaust gas is then discharged through the outlet 3 for further processing. During the exhaust gas treatment process, the brake motor 4 is controlled to rotate the brake shaft 5, driving the brush plate structure to continuously clean the front and back surfaces of the filter plate 8. This ensures that the filter plate 8 maintains its clean filtration performance without requiring frequent disassembly and cleaning, while maintaining excellent filtration and dust removal characteristics. Specifically:

[0025] The brush plate structure includes a first cleaning brush plate 6 axially disposed on one side of the filter plate 8 along the brake shaft 5 and a second cleaning brush plate 16 axially disposed on the other side of the filter plate 8 along the brake shaft 5. The first cleaning brush plate 6 and the second cleaning brush plate 16 are arranged in a cross shape, and both the first cleaning brush plate 6 and the second cleaning brush plate 16 are provided with cleaning soft brushes. By setting the brush plate structure to be in series with the first cleaning brush plate 6 and the second cleaning brush plate 16 attached to the front and back sides of the filter plate 8, the front and back sides of the filter plate 8 are cleaned simultaneously by brushing with the two sets of cleaning brush plates. Furthermore, by setting the two sets of cleaning brush plates to be staggered, it can prevent particulate matter from clogging between the two sets of cleaning brush plates when brushing. Example 2:

[0026] Please see Figure 1-3 , Figure 5 This embodiment further explains Example 1. The top of the treatment tank 1 is provided with a spray water pipe 9 that passes through the dividing ring frame 7. The spray water pipe 9 is provided with at least one set of atomizing nozzles 10 along its pipeline direction. One end of the brake shaft 5 is provided with a brake disc 11 that drives the spray water pipe 9 to swing. The brake disc 11 is provided with multiple sets of brake racks 12 along its circumference. One end of the spray water pipe 9 is provided with a brake gear 13 that meshes with the brake racks 12. When the brake shaft 5 rotates, it drives the brake disc 11 to rotate, which in turn drives the brake racks 12 and brake gears 13 on its edge to intermittently mesh and drive, pushing the spray water pipe 9 to swing intermittently, forming a diversified spray state. On the one hand, it directly atomizes and settles particulate matter in the chemical exhaust gas. On the other hand, it performs real-time adsorption and sedimentation treatment on particulate matter scraped off the filter plate 8, thereby improving the chemical exhaust gas filtration and treatment capacity while also enabling unified collection and treatment of particulate matter.

[0027] As a further embodiment of this invention, multiple sets of atomizing nozzles 10 are provided. These multiple sets of atomizing nozzles 10 are arranged along the pipeline direction of the spray water pipe 9 on one side of the filter surface of the filter plate 8. The lower end of the treatment tank 1 is provided with a drain trough 14 that is staggered with the filter plate 8. A drain valve 15 is provided at the bottom of the drain trough 14. By setting the atomizing nozzles 10 close to the filter surface of the filter plate 8, the chemical exhaust gas in the flow and transportation is atomized, adsorbed, and settled. The atomized and adsorbed particulate matter and sewage mixture are discharged into the drain trough 14 and can be discharged and cleaned in one piece through the drain valve 15.

[0028] Furthermore, the spray pipe 9 is provided with a bearing sleeve 20 that is rotatably connected to the partition ring 7 along its pipeline direction, and an eccentric wheel 19 is provided on the pipeline of the spray pipe 9. When the spray pipe 9 swings intermittently, the bearing sleeve 20 enables the spray pipe 9 to maintain a rotating state relative to the partition ring 7. While the spray pipe 9 swings, the gravity of the eccentric wheel 19 causes it to drop downwards, which enables the spray pipe 9 to quickly return to its original position after swinging, always maintaining a certain angle of swing spray state, spraying the spray into the tank, and fully combining and reacting with the chemical exhaust gas.

[0029] It should be noted that the inlet of the spray pipe 9 is connected to the branch pipe 18, and the spray pipe 9 and the branch pipe 18 are connected by a sealing ring 17. The branch pipe 18 is connected to the external water supply equipment, and the clean water source is diverted and delivered to the spray pipe 9 through the branch pipe 18. While the spray pipe 9 is swinging back and forth, the sealing ring 17 is used to seal the connection between the spray pipe 9 and the branch pipe 18 and rotate in parallel, so that the spray pipe 9 always maintains the swing state to spray mist.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A tail gas treatment device for chemical product production, characterized in that, include: Processing tank (1); A separator ring (7) is provided inside the processing tank (1). There is no less than one set of separator rings (7), and a filter plate (8) is provided inside the separator ring (7). A spray water pipe (9) is provided on the top of the treatment tank (1) through the partition ring frame (7). There is no less than one set of spray water pipes (9), and no less than one set of atomizing nozzles (10) are provided along the pipeline direction of the spray water pipe (9). The brake shaft (5) passes through the filter plate (8) and is located in the middle of the treatment tank (1). The brake shaft (5) is provided with a brush plate structure for cleaning the front and back of the filter plate (8) along its axial direction, and a brake disc (11) is provided at one end of the brake shaft (5) to drive the spray water pipe (9) to swing.

2. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The brush plate structure includes a first cleaning brush plate (6) axially disposed on one side of the filter plate (8) along the brake shaft (5) and a second cleaning brush plate (16) axially disposed on the other side of the filter plate (8) along the brake shaft (5).

3. The tail gas treatment device for chemical product production according to claim 2, characterized in that, The first cleaning brush plate (6) and the second cleaning brush plate (16) are arranged in a cross shape, and both the first cleaning brush plate (6) and the second cleaning brush plate (16) are provided with cleaning soft brushes.

4. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The atomizing nozzles (10) are configured in multiple groups, and the multiple groups of atomizing nozzles (10) are arranged on one side of the filter surface of the filter plate (8) along the pipeline direction of the spray water pipe (9).

5. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The brake disc (11) is provided with multiple sets of brake racks (12) along its circumference, and one end of the spray water pipe (9) is provided with a brake gear (13) that meshes with the brake racks (12).

6. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The spray pipe (9) is provided with a bearing sleeve (20) that is rotatably connected to the partition ring frame (7) along its pipeline direction, and an eccentric wheel (19) is provided on the pipeline of the spray pipe (9).

7. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The inlet of the spray pipe (9) is connected to a branch pipe (18), and the spray pipe (9) and the branch pipe (18) are connected by a sealing ring (17).

8. The tail gas treatment device for chemical product production according to claim 1, characterized in that, The processing tank (1) is provided with a brake motor (4) that drives the brake shaft (5) on one side.

9. A tail gas treatment device for chemical product production according to claim 1, characterized in that, The processing tank (1) has an air inlet (2) on one side of the upper end of the tank body and an air outlet (3) on the other side of the lower end of the tank body.

10. A tail gas treatment device for chemical product production according to claim 1, characterized in that, The lower end of the treatment tank (1) is provided with a drain trough (14) on the staggered filter plate (8), and the bottom of the drain trough (14) is provided with a drain valve (15).

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