Tail gas filtering device with automatic gathering and centralized treatment functions for chlorinated paraffin production

Abstract

The invention relates to the technical field of tail gas treatment, in particular to an automatic gathering and centralized treatment tail gas filtering device for chlorinated paraffin production. The device comprises a production main body, a leading-out pipe for leading out tail gas is arranged at the end of the production main body, a filtering pipeline is connected to the end of the leading-out pipe, and an air blowing assembly for blowing out the tail gas along the filtering pipeline is arranged at the joint of the filtering pipeline and the leading-out pipe. Through the combined action of the production main body, the filtering pipeline, the air blowing assembly, the steering filtering mechanism and the spraying treatment mechanism, a rotating solid particle filtering structure can be formed on the inner side of the filtering pipeline, and the situation that solid particles are accumulated on the lower half portion of the filtering structure due to the gravity and influence filtering is prevented; meanwhile, the linkage shaft and the filtering structure synchronously rotate to drive the arc-shaped scraping plate to circularly scrape water vapor on the inner wall of the filtering pipeline and guide the accumulated water vapor to flow back into the ceramic box body, so that the water vapor is prevented from contaminating the interior of the filtering pipeline to form corrosion.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, in particular to a tail gas filtering device for automatic gathering and centralized treatment of chlorinated paraffin production. Background Art

[0002] Chlorinated paraffin is an organic substance, a chlorinated derivative of paraffin hydrocarbons, with the advantages of low volatility, flame retardancy, good electrical insulation, and low price. It can be used as a flame retardant and auxiliary plasticizer for polyvinyl chloride. It is widely used in the production of cable materials, floor materials, hoses, artificial leather, rubber and other products. It is also used as an additive for polyurethane waterproof coatings, polyurethane plastic tracks, lubricating oils, etc.

[0003] The production process of chlorinated paraffin mainly includes several steps, such as material preparation, paraffin chlorination, decolorization, purification, drying and granulation. In the process of paraffin chlorination, decolorization and purification, exhaust gas containing harmful gases and other particulate matter will be generated. In industrial preparation, high-efficiency activated carbon is used for adsorption and chemical agents are used to absorb harmful gases in the exhaust gas to complete the filtration treatment of the exhaust gas.

[0004] This type of exhaust gas filtration and treatment device used in the production of chlorinated paraffin, before using chemicals to treat harmful gases, mostly first uses activated carbon and other filtering structures to absorb particulate matter in the exhaust gas outlet pipe, and then sprays a chemical mixture in the pipe to allow the chemical mixture to fully contact the exhaust gas and complete the reaction, while allowing some harmful gases to dissolve in water and collect the water body. In this process, as the particulate matter tends to fall under the influence of its own gravity when passing through the pipe with the exhaust gas, it is easy for the particulate matter to accumulate in the lower half of the filter structure when passing through the filter structure, affecting the filtering effect of the lower half. At the same time, since the chemical mixture is sprayed in the pipe, water vapor is easily mixed with toxic gases when spraying and contaminates the inner wall of the pipe, corroding the inside of the pipe and causing the pipe to leak. Summary of the invention

[0005] The purpose of the present invention is to provide an exhaust gas filtering device for chlorinated paraffin production that automatically gathers and centrally processes, so as to solve the problem that particulate matter has a tendency to fall when the exhaust gas passes through the filtering structure in the pipeline, and the particulate matter is easy to accumulate in the lower half of the filtering structure, affecting the filtering effect of the lower half; at the same time, when the mixed liquid of the reagent is sprayed in the pipeline, the water vapor is easy to mix with the toxic gas and stain the inner wall of the pipeline, corroding the inside of the pipeline and causing leakage of the pipeline.

[0006] In order to achieve the above-mentioned object, the present invention provides an exhaust gas filtration device for chlorinated paraffin production with automatic gathering and centralized treatment, comprising a production body, an outlet pipe for outlet exhaust gas is arranged at the end of the production body, the end of the outlet pipe is connected to a filter pipe, and a blast assembly for blowing exhaust gas out along the filter pipe is arranged at the connection between the filter pipe and the outlet pipe; A steering filter mechanism, the steering filter mechanism comprising a large annular tube, a rotating filter assembly and a driving assembly, the large annular tube is arranged in the middle of the filter pipe, and the large annular tube is coaxial with and connected to the filter pipe, the rotating filter assembly is rotatably mounted in the center of the large annular tube, the driving assembly is arranged at the outer edge of the large annular tube, and the driving end of the driving assembly acts on the rotating filter assembly inside the large annular tube, so that the rotating filter assembly can maintain a rotating state; A spraying treatment mechanism, the spraying treatment mechanism includes a reaction box, a spraying component and a reflux component, the reaction box is arranged on the filter pipe, and the reaction box is connected to the filter pipe, the spraying components are arranged in a group and are evenly arranged at the end of the reaction box, the reflux component is arranged on the inner side of the filter pipe on both sides of the reaction box, and the reflux component is connected to the rotating shaft part of the rotating filter component, so that the reflux component and the rotating filter component rotate synchronously, and the reflux component can be used in the filter pipe on both sides of the reaction box to scrape the inner wall of the filter pipe, so as to help scrape off the water vapor on the inner wall of the filter pipe and reflux it into the reaction box.

[0007] As a further improvement of the technical solution, the rotary filter assembly includes a mounting ring frame, a rotating shaft, a filter carbon plate and a rotating ring, the mounting ring frame is arranged at the connection between the large ring tube and the filter pipe, the rotating shaft is rotatably mounted at the center of the mounting ring frame, and the rotating shaft is coaxial with the filter pipe, the filter carbon plate is mounted on the rotating shaft, so that the filter carbon plate and the large ring tube are also coaxial, and the rotating ring is arranged around the outer edge of the filter carbon plate; Among them, the filter carbon plate is a cylindrical high-activated carbon plate, the tube wall of the large ring tube is provided with a penetrating annular groove, the rotating ring is an annular plate body, and the rotating ring fits the annular groove of the large ring tube, so that the rotating ring forms a shield for the large ring tube on the inner side of the annular groove, and the driving end of the driving assembly passes through the annular groove and acts on the rotating ring.

[0008] As a further improvement of the technical solution, the driving assembly includes a mounting seat, a driving motor and an extrusion turntable, wherein the mounting seat is arranged at the edge of the large ring tube, the driving motor is arranged on the mounting seat, the extrusion turntable is arranged on the output end of the driving motor, and the edge of the extrusion turntable passes through the annular groove of the large ring tube and squeezes the rotating ring; Wherein, a rubber strip for increasing the friction with the rotating ring is arranged around the outer wall of the extrusion turntable.

[0009] As a further improvement of the present technical solution, the reaction box includes a ceramic box and a collecting tube. The ceramic box is wide at the top and narrow at the bottom, and both sides of the ceramic box are connected to filtering pipes. The collecting tubes are arranged in a group at the bottom of the ceramic box.

[0010] As a further improvement of the present technical solution, the spray assembly includes a liquid storage tank, a pressurized pipe and a spray head. The liquid storage tank is arranged at the end of the ceramic box body, the pressurized pipe vertically penetrates the top wall of the ceramic box body, and the end of the pressurized pipe is connected to the liquid storage tank, and the spray head is arranged at the bottom end of the pressurized pipe.

[0011] As a further improvement of the technical solution, the reflux assembly includes a bearing frame, a linkage shaft and an arc-shaped scraper, the bearing frame is arranged on the side of the filter pipe away from the outlet pipe, one end of the linkage shaft is connected to the rotating shaft, and the other end passes through the bearing frame, so that the rotation of the rotating shaft can drive the linkage shaft to rotate synchronously, and the arc-shaped scraper is arranged around the outside of the linkage shaft, and the arc-shaped scraper is located in the filter pipe on both sides of the ceramic box; Wherein, the edge of the arc-shaped scraper is in contact with the filter pipe.

[0012] As a further improvement of the technical solution, the arc-shaped scrapers are grouped into three, and one group is respectively arranged on the linkage shaft located in the filter pipes on both sides of the ceramic box body, and the edges of the arc-shaped scrapers away from the linkage shaft are arc-shaped edges; Among them, the arc scrapers in the filter pipes on both sides of the ceramic box are mirror-symmetrical, so that the two groups of arc scrapers can scrape the water vapor on the inner walls of the filter pipes on both sides of the ceramic box through the arc edges as the linkage shaft rotates, and guide the water flow to one side of the ceramic box through the arc edges.

[0013] As a further improvement of the technical solution, the blower assembly includes a mounting base and a blower, the mounting base is arranged on one side of the production body, the blower is arranged on the mounting base, and the blower is connected to the filter duct through a plurality of blower ducts.

[0014] Compared with the prior art, the present invention provides an exhaust gas filtration device for chlorinated paraffin production with automatic gathering and centralized treatment, which has the following beneficial effects: The present invention forms a rotating solid particle filtering structure on the inner side of the filter pipe through the joint action of a production body, a filter pipe, an air blowing assembly, a steering filter mechanism and a spraying treatment mechanism, thereby preventing solid particles from accumulating in the lower half of the filter structure due to their own gravity and affecting the filtration. At the same time, the synchronous rotation of the linkage shaft and the filter structure is utilized to drive the arc scraper to circulate and scrape water vapor on the inner wall of the filter pipe and guide the accumulated water vapor to flow back into the ceramic box, thereby preventing water vapor from contaminating the filter pipe and forming corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3It is a schematic diagram of the structural distribution of the filtering pipeline, the steering filtering mechanism and the spraying treatment mechanism in the present invention; Figure 4 This is a schematic diagram of the overall structure of the large ring tube after half-sectioning in the present invention; Figure 5 for Figure 4 A magnified view of the structure at center; Figure 6 It is a schematic diagram of the overall structure of the filter pipe and the ceramic box after half-section in the present invention; Figure 7 It is a front view of the filtering pipeline, the steering filtering mechanism and the spraying treatment mechanism of the present invention after half section; Figure 8 It is a schematic diagram of the overall structure of the filtering pipeline, the steering filtering mechanism and the spraying treatment mechanism in the present invention after half-section; Fig. 9 for Figure 8 Enlarged view of the structure at point B in the middle.

[0016] In the figure: 1. production body; 2. outlet pipe; 3. filter pipe; 4. blast assembly; 401. mounting base; 402. blower; 5. steering filter mechanism; 51. large ring pipe; 52. rotating filter assembly; 521. mounting ring frame; 522. rotating shaft; 523. filter carbon plate; 524. rotating ring; 53. drive assembly; 531. mounting seat; 532. drive motor; 533. extrusion turntable; 6. spraying treatment mechanism; 61. reaction box; 611. ceramic box; 612. collecting pipe; 62. spraying assembly; 621. liquid storage tank; 622. pressurized pipe; 623. spray head; 63. reflux assembly; 631. bearing frame; 632. linkage shaft; 633. arc scraper. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] Reference Figure 1-9 , an exhaust gas filtration device for chlorinated paraffin production with automatic gathering and centralized treatment, in order to prevent the accumulation of particulate matter in the exhaust gas in the lower half of the filtering structure, affecting the filtering efficiency, and at the same time cleaning the water vapor on the inner wall of the pipeline and reflux collection, to prevent corrosion of the pipeline, the device is provided here including a production body 1, the production body 1 is a chlorinated paraffin production equipment with automatic gathering and centralized treatment, which will not be described here, and an outlet pipe 2 for outlet exhaust gas is provided at the end of the production body 1, and the end of the outlet pipe 2 is connected to the filtering pipeline 3, and the connection between the filtering pipeline 3 and the outlet pipe 2 is provided with a blast assembly 4 for blowing the exhaust gas out along the filtering pipeline 3; The steering filter mechanism 5 includes a large annular tube 51, a rotary filter assembly 52 and a drive assembly 53. The large annular tube 51 is arranged in the middle of the filter pipe 3, and the large annular tube 51 is coaxial with and connected to the filter pipe 3. The rotary filter assembly 52 is rotatably installed in the center of the large annular tube 51, so that when the exhaust gas passes through the large annular tube 51, the rotary filter assembly 52 can be used to complete the solid particle filtration. The bottom end of the large annular tube 51 is provided with an opening and closing door, which can be opened when necessary to clean the solid particles accumulated inside the large annular tube 51. The drive assembly 53 is arranged at the outer edge of the large annular tube 51, and the driving end of the drive assembly 53 acts on the rotary filter assembly 52 inside the large annular tube 51, so that the rotary filter assembly 52 can maintain a rotating state; The spraying treatment mechanism 6 includes a reaction box 61, a spraying component 62 and a reflux component 63. The reaction box 61 is arranged on the filter pipe 3, and the reaction box 61 is connected to the filter pipe 3. A plurality of spraying components 62 are evenly arranged at the end of the reaction box 61 in a group. The reflux component 63 is arranged on the inner side of the filter pipe 3 on both sides of the reaction box 61, and the reflux component 63 is connected to the rotating shaft part of the rotating filter component 52, so that the reflux component 63 rotates synchronously with the rotating filter component 52. The reflux component 63 can be used to scrape the inner wall of the filter pipe 3 on both sides of the reaction box 61 to help scrape off the water vapor on the inner wall of the filter pipe 3 and reflux it into the reaction box 61.

[0021] The rotary filter assembly 52 includes a mounting ring frame 521, a rotating shaft 522, a filter carbon plate 523 and a rotating ring 524. The mounting ring frame 521 is arranged at the connection between the large ring tube 51 and the filter pipe 3. The rotating shaft 522 is rotatably mounted at the center of the mounting ring frame 521, and the rotating shaft 522 is coaxial with the filter pipe 3. The filter carbon plate 523 is mounted on the rotating shaft 522 so that the filter carbon plate 523 and the large ring tube 51 are also coaxial. The rotating ring 524 is arranged around the outer edge of the filter carbon plate 523. Among them, the filter carbon plate 523 is a cylindrical high-activated carbon plate, a penetrating annular groove is opened on the tube wall of the large annular tube 51, the rotating ring 524 is an annular plate body, and the rotating ring 524 is in contact with the annular groove of the large annular tube 51, so that the rotating ring 524 forms a shield for the large annular tube 51 on the inner side of the annular groove, which can prevent the exhaust gas from leaking from the annular groove. The driving end of the driving component 53 passes through the annular groove and acts on the rotating ring 524.

[0022] The driving assembly 53 includes a mounting seat 531, a driving motor 532 and an extrusion turntable 533. The mounting seat 531 is arranged at the edge of the large annular tube 51, the driving motor 532 is arranged on the mounting seat 531, the extrusion turntable 533 is arranged on the output end of the driving motor 532, and the edge of the extrusion turntable 533 passes through the annular groove of the large annular tube 51 and squeezes the rotating ring 524, so that the rotation of the extrusion turntable 533 can squeeze the rotating ring 524 and the filter carbon plate 523 to rotate inside the large annular tube 51. Through the rotation of the filter carbon plate 523 in the large annular tube 51, when the exhaust gas passes through the filter carbon plate 523 to filter solid particles, the solid particles will not be accumulated on the lower half of the filter carbon plate 523 due to their own gravity, so that the filter carbon plate 523 maintains a uniform filtering state; The outer wall of the extrusion rotating disk 533 is surrounded by a rubber strip for increasing the friction with the rotating ring 524 .

[0023] The reaction box 61 includes a ceramic box 611 and a collecting tube 612. The ceramic box 611 is wide at the top and narrow at the bottom, and both sides of the ceramic box 611 are connected to the filter pipe 3, so that the exhaust gas in the filter pipe 3 will pass through the ceramic box 611 when flowing, and the box made of ceramic material can avoid the corrosion of the box by chemical liquid and maintain the integrity of the box. A plurality of collecting tubes 612 are arranged at the bottom end of the ceramic box 611 in a group. The ceramic box 611, which is wide at the top and narrow at the bottom, can allow the water flow in the ceramic box 611 to accumulate at the bottom end of the ceramic box 611 and be discharged and collected outward through the collecting tube 612.

[0024] The spray assembly 62 includes a liquid storage tank 621, a pressurized pipe 622 and a spray head 623. The liquid storage tank 621 is arranged at the end of the ceramic box 611. The liquid storage tank 621 stores chemical agents for exhaust gas reaction treatment. The pressurized pipe 622 vertically penetrates the top wall of the ceramic box 611, and the end of the pressurized pipe 622 is connected to the liquid storage tank 621. The liquid storage tank 621 and the pressurized pipe 622 are common storage and pressurization equipment, which will not be described here. The spray head 623 is arranged at the bottom of the pressurized pipe 622. Water with reaction treatment agents is sprayed into the ceramic box 611 through the spray head 623 to fully contact and react with the passing exhaust gas. After the reaction, the water will slide to the bottom of the ceramic box 611 and be discharged using the collection pipe 612.

[0025] The reflux assembly 63 includes a bearing frame 631, a linkage shaft 632 and an arc scraper 633. The bearing frame 631 is arranged on the side of the filter pipe 3 away from the outlet pipe 2. One end of the linkage shaft 632 is connected to the rotating shaft 522, and the other end passes through the bearing frame 631, so that the rotation of the rotating shaft 522 can drive the linkage shaft 632 to rotate synchronously. The arc scraper 633 is arranged around the outer side of the linkage shaft 632, and the arc scraper 633 is located in the filter pipe 3 on both sides of the ceramic box 611; The edge of the arc scraper 633 is in contact with the filter pipe 3 .

[0026] Furthermore, three arc-shaped scrapers 633 are grouped together, and one group is respectively arranged on the linkage shaft 632 in the filter pipe 3 on both sides of the ceramic box 611, and the edge of the arc-shaped scraper 633 away from the linkage shaft 632 is an arc-shaped edge; Among them, the arc scrapers 633 in the filter pipes 3 on both sides of the ceramic box 611 are mirror-symmetrical, so that the two groups of arc scrapers 633 can scrape the water vapor on the inner walls of the filter pipes 3 on both sides of the ceramic box 611 through the arc edges as the linkage shaft 632 rotates, and guide the water flow to one side of the ceramic box 611 through the arc edges, so that the water vapor on the inner walls of the filter pipes 3 on both sides of the ceramic box 611 can flow back into the ceramic box 611.

[0027] The blower assembly 4 includes a mounting base 401 and a blower 402. The mounting base 401 is arranged on one side of the production body 1, and the blower 402 is arranged on the mounting base 401. The blower 402 is connected to the filter pipe 3 through multiple blower pipes. The multiple blower pipes of the blower 402 can form an all-round blow at the connection between the filter pipe 3 and the outlet pipe 2, thereby helping the exhaust gas to pass through the filter pipe 3 evenly.

[0028] In this embodiment, the exhaust gas produced in the production body 1 is discharged into the filter pipe 3 through the outlet pipe 2, and the exhaust gas is blown to the other side through the filter pipe 3 by the blower 402. During the process, the exhaust gas first passes through the large annular pipe 51, and the drive motor 532 is started to drive the extrusion turntable 533 to rotate. The rotation of the extrusion turntable 533 will squeeze the rotating ring 524 and the filter carbon plate 523, so that the filter carbon plate 523 rotates inside the large annular pipe 51 through the rotating shaft 522. At this time, when the exhaust gas passes through the filter carbon plate 523 to filter solid particles, it will not accumulate on the lower half of the filter carbon plate 523 due to the gravity of the solid particles themselves, so that the filter carbon plate 523 maintains a uniform filtering state, and the exhaust gas after filtering the solid particles continues to pass through the filter carbon plate 523. The filter pipe 3 moves forward, and at this time, a mixed liquid of a reagent for removing harmful gases in the exhaust gas is sprayed into the ceramic box 611 by using the spray head 623, so that the exhaust gas can react with the reagent in an all-round way. During the process, water vapor will float and be contaminated in the filter pipe 3 on both sides of the ceramic box 611. At this time, with the rotation of the rotating shaft 522, the linkage shaft 632 and the arc scraper 633 will be driven to rotate synchronously. When the arc scraper 633 located in the filter pipe 3 on both sides of the ceramic box 611 rotates, the water vapor on the inner wall of the filter pipe 3 will be scraped by the arc edge, and the water flow will be guided into the ceramic box 611 through the arc edge, completing the reflux and collection of water vapor, and finally the treated exhaust gas is discharged from the other end of the filter pipe 3.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic gathering and centralized treatment tail gas filtration device for chlorinated paraffin production, It is characterized in that include: A production body (1), wherein an outlet pipe (2) for outlet exhaust gas is disposed at an end of the production body (1), the end of the outlet pipe (2) is connected to a filter pipe (3), and a blast assembly (4) for blowing the exhaust gas out along the filter pipe (3) is disposed at the connection between the filter pipe (3) and the outlet pipe (2); A steering filter mechanism (5), the steering filter mechanism (5) comprising a large annular tube (51), a rotating filter assembly (52) and a driving assembly (53), the large annular tube (51) being arranged in the middle of the filter pipe (3), the large annular tube (51) being coaxial with and in communication with the filter pipe (3), the rotating filter assembly (52) being rotatably mounted in the center of the large annular tube (51), the driving assembly (53) being arranged at the outer edge of the large annular tube (51), and the driving end of the driving assembly (53) acting on the rotating filter assembly (52) inside the large annular tube (51), so that the rotating filter assembly (52) can maintain a rotating state; A spraying treatment mechanism (6), the spraying treatment mechanism (6) comprising a reaction box (61), a spraying assembly (62) and a reflux assembly (63), the reaction box (61) being arranged on the filter pipe (3), and the reaction box (61) being in communication with the filter pipe (3), a plurality of the spraying assemblies (62) being arranged in a group and uniformly arranged at the end of the reaction box (61), the reflux assembly (63) being arranged inside the filter pipe (3) on both sides of the reaction box (61), and the reflux assembly (63) being connected to the rotating shaft portion of the rotating filter assembly (52), so that the reflux assembly (63) and the rotating filter assembly (52) rotate synchronously, and the reflux assembly (63) can be used to scrape the inner wall of the filter pipe (3) in the filter pipe (3) on both sides of the reaction box (61), thereby helping to scrape off the water vapor on the inner wall of the filter pipe (3) and reflux it into the reaction box (61).

2. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 1, It is characterized in that The rotary filter assembly (52) comprises a mounting ring frame (521), a rotating shaft (522), a filter carbon plate (523) and a rotating ring (524); the mounting ring frame (521) is arranged at the connection between the large ring tube (51) and the filter pipe (3); the rotating shaft (522) is rotatably mounted at the center of the mounting ring frame (521), and the rotating shaft (522) and the filter pipe (3) are coaxial; the filter carbon plate (523) is mounted on the rotating shaft (522) so that the filter carbon plate (523) and the large ring tube (51) also remain coaxial; and the rotating ring (524) is arranged around the outer edge of the filter carbon plate (523); The filter carbon plate (523) is a cylindrical high-activated carbon plate, a penetrating annular groove is provided on the tube wall of the large annular tube (51), the rotating ring (524) is an annular plate body, and the rotating ring (524) is in contact with the annular groove of the large annular tube (51), so that the rotating ring (524) forms a shield for the large annular tube (51) on the inner side of the annular groove, and the driving end of the driving component (53) passes through the annular groove and acts on the rotating ring (524).

3. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 2, It is characterized in that The driving assembly (53) comprises a mounting seat (531), a driving motor (532) and an extrusion rotating disk (533); the mounting seat (531) is arranged at the edge of the large annular tube (51); the driving motor (532) is arranged on the mounting seat (531); the extrusion rotating disk (533) is arranged on the output end of the driving motor (532); and the edge of the extrusion rotating disk (533) passes through the annular groove of the large annular tube (51) and extrudes the rotating ring (524); Wherein, a rubber strip is arranged around the outer wall of the extrusion rotating disk (533) to increase the friction force with the rotating ring (524).

4. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 1, It is characterized in that The reaction box (61) comprises a ceramic box (611) and a collecting tube (612); the ceramic box (611) is wide at the top and narrow at the bottom, and both sides of the ceramic box (611) are connected to the filtering pipe (3); a plurality of collecting tubes (612) are arranged in a group at the bottom end of the ceramic box (611).

5. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 4, It is characterized in that The spray assembly (62) comprises a liquid storage tank (621), a pressurized pipe (622) and a spray head (623); the liquid storage tank (621) is arranged at the end of the ceramic box (611); the pressurized pipe (622) vertically penetrates the top wall of the ceramic box (611); the end of the pressurized pipe (622) is connected to the liquid storage tank (621); and the spray head (623) is arranged at the bottom end of the pressurized pipe (622).

6. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 4, It is characterized in that The reflux assembly (63) comprises a bearing frame (631), a linkage shaft (632) and an arc-shaped scraper (633); the bearing frame (631) is arranged on a side of the filter pipe (3) away from the outlet pipe (2); one end of the linkage shaft (632) is connected to the rotating shaft (522) and the other end passes through the bearing frame (631), so that the rotation of the rotating shaft (522) can drive the linkage shaft (632) to rotate synchronously; the arc-shaped scraper (633) is arranged around the outside of the linkage shaft (632), and the arc-shaped scraper (633) is located in the filter pipe (3) on both sides of the ceramic box (611); The edge of the arc-shaped scraper (633) is in contact with the filter pipe (3).

7. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 6, It is characterized in that The arc-shaped scrapers (633) are grouped into three, and one group is respectively arranged on the linkage shaft (632) located in the filter pipe (3) on both sides of the ceramic box (611), and the edges of the arc-shaped scrapers (633) away from the linkage shaft (632) are arc-shaped edges; The arc-shaped scrapers (633) in the filter pipes (3) on both sides of the ceramic box (611) are mirror-symmetrical, so that the two sets of arc-shaped scrapers (633) can scrape the water vapor on the inner walls of the filter pipes (3) on both sides of the ceramic box (611) through the arc-shaped edges as the linkage shaft (632) rotates, and guide the water flow to one side of the ceramic box (611) through the arc-shaped edges.

8. The tail gas filtering device for chlorinated paraffin production with automatic gathering and centralized treatment according to claim 1, It is characterized in that The air blowing assembly (4) comprises a mounting base (401) and a blower (402); the mounting base (401) is arranged on one side of the production body (1); the blower (402) is arranged on the mounting base (401); and the blower (402) is connected to the filter pipe (3) via a plurality of air blowing pipes.

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