Waste gas treatment device for carbon fiber production

Abstract

The utility model discloses a waste gas treatment device for carbon fiber production, which comprises a device main body, and the device main body comprises a box body in which a hollow cavity is formed; the filtering assembly is mounted in the cavity and divides the cavity into a front filtering chamber and a rear filtering chamber; a gas inlet is formed in the box body, is communicated with the filtering front chamber and is used for introducing the carbon fiber production waste gas into the filtering front chamber, and the carbon fiber production waste gas enters the filtering rear chamber after being subjected to multi-stage filtering treatment by the filtering assembly; the box cover is buckled on the box body, and an air outlet is formed in the box cover; and the gas outlet is communicated with the filtering rear chamber and is used for discharging the filtered gas out of the box body. According to the waste gas treatment device for carbon fiber production, the filter assembly is integrated into the box body, so that the device is small and exquisite and convenient to use; the waste gas is subjected to multi-stage filtration treatment, so that a water pumping pipe, a filter screen and the like in the waste gas device can be effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment, and specifically relates to a waste gas treatment device used for carbon fiber production. Background Art

[0002] The production process of polyacrylonitrile-based (PAN) carbon fibers includes raw material purification, polymerization, and spinning. The finished PAN fibers are pre-oxidized and then treated in a low-temperature carbonization furnace and a high-temperature carbonization furnace to obtain carbon fibers. A large amount of non-condensable gas is generated during the purification and polymerization of the raw materials. These tail gases contain dimethyl sulfoxide and acrylonitrile. If they are not discharged without treatment, they will pollute the environment and cause harm to the human body.

[0003] When traditional devices are in use, particulate matter is mixed in the exhaust gas, which will gather in the treatment liquid and mix with the treatment liquid during treatment, affecting the performance of the device; the residual particles in the exhaust gas will have a certain adverse effect on the air when directly discharged, and the harmful gases contained in the exhaust gas will cause harm to the human body when directly discharged.

[0004] A Chinese patent with application number 202122007850.2 discloses an exhaust gas treatment device for carbon fiber production, including a base, a treatment tank and a treatment box, the upper surface of the base is provided with a treatment box and a treatment tank side by side, a water spray pipe is provided at the top of the inside of the treatment box, and nozzles are evenly provided at the bottom of the water spray pipe, a water pump is provided in the middle of the top of the treatment box, a hose B is provided at the water inlet of the water pump, the other end of the hose B is connected to the bottom of the treatment box, a hose A is connected to the water outlet of the water pump, and the other end of the hose A is connected to the water spray pipe, a motor is provided in the middle of the top of the treatment tank, a stirring shaft is meshedly connected to the motor output shaft, a stirring paddle is provided on the stirring shaft, a filter tube is fixed to the upper end of the treatment tank close to the treatment box by a fixing buckle, the upper end of the filter tube is connected to the upper end of the treatment box through the exhaust gas discharge pipe A, an exhaust pipe is provided at the lower end of the filter tube, and the exhaust pipe extends into the bottom end of the treatment tank.

[0005] However, the above patent still has certain defects. When the treatment device is in use, the exhaust gas enters the treatment box through the exhaust gas inlet pipe, the water in the treatment box is pumped out from the hose B by the water pump, and then enters the water spray pipe, and then the larger solid particles in the exhaust gas are sprayed out through the nozzle, and then filtered by the filter pipe. The filtered gas enters the treatment tank, and the exhaust gas and the treatment liquid are fully integrated through the stirring shaft to treat the exhaust gas. However, the above operation is relatively cumbersome and inconvenient to use. In addition, when the water in the treatment box is pumped out through the hose B, since there are more particulate impurities in the water in the treatment box, when it is directly pumped out into the hose B, it may cause the hose B to be blocked, thereby affecting the normal use of the treatment device.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an exhaust gas treatment device for carbon fiber production. The exhaust gas treatment device is provided with multi-stage filtration, which can prevent the filter device from being blocked, and the box cover can be detachably installed to facilitate cleaning of the box.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0009] The utility model provides an exhaust gas treatment device for carbon fiber production, comprising a device main body,

[0010] The device body comprises: a box body, the interior of which forms a hollow chamber; a filter assembly, the filter assembly is installed in the chamber, and the chamber is divided into a front filter chamber and a rear filter chamber;

[0011] The box body is provided with an air inlet, which is connected to the filter front chamber and is used to pass the carbon fiber production waste gas into the filter front chamber and enter the filter back chamber after multi-stage filtering by the filter assembly;

[0012] The box cover is buckled on the box body, and an air outlet is arranged on the box cover; the air outlet is communicated with the post-filtering chamber and is used to discharge the filtered gas out of the box body.

[0013] Advantageously, all the filter components are installed in one box, so that the exhaust gas treatment device has a simple structure and is easy to move and use.

[0014] Furthermore, the filter assembly is a cylindrical structure, and the space between the outer peripheral wall of the cylindrical filter assembly and the inner peripheral wall of the filter box constitutes a filter antechamber;

[0015] The interior of the cylindrical filter assembly is hollow and constitutes a filter rear chamber, and the air outlet is arranged on the box cover above the interior space of the cylindrical filter assembly.

[0016] Further, the cylindrical filter assembly includes a filter box arranged on the outer layer and a stirring box arranged inside the filter box;

[0017] The filter box is provided with a first air inlet pipe, connecting the filter box with the filter front chamber; the gas filtered in the filter front chamber is passed into the filter box through the first air inlet pipe;

[0018] The interior of the stirring box constitutes a post-filtration chamber;

[0019] The stirring box is provided with a second air inlet pipe, which connects the filter box and the stirring box; the gas filtered by the filter box is introduced into the stirring box through the second air inlet pipe.

[0020] Furthermore, a plurality of groups of first filter screens are provided between the box body and the filter box;

[0021] The inner peripheral wall of the box body is provided with a plurality of groups of first embedding grooves, and the outer peripheral wall of the filter box is provided with a plurality of groups of second embedding grooves corresponding to the first embedding grooves one by one;

[0022] The plurality of first filter screens are detachably installed between the corresponding first embedding grooves and the second embedding grooves.

[0023] Furthermore, a plurality of groups of second filter screens are provided between the filter box and the mixing box;

[0024] The inner peripheral wall of the filter box is provided with a plurality of groups of annular grooves, and the plurality of groups of second filter screens are detachably arranged on the corresponding annular grooves.

[0025] Furthermore, the exhaust gas treatment device is also provided with: a stirring device,

[0026] The stirring device comprises: a driving device and a stirring rod, wherein the driving device is arranged on the upper surface of the box cover, and the stirring rod passes through the box cover and extends into the stirring box;

[0027] The driving device drives the stirring rod to rotate in the stirring box.

[0028] Furthermore, the exhaust gas treatment device is further provided with: a water guide component,

[0029] The water guide assembly comprises: a water pump and a water pumping pipe. The water pump is arranged on the upper surface of the box cover. One end of the water pumping pipe is connected to the water inlet of the water pump, and the other end extends into the filter box.

[0030] Furthermore, the water guide assembly comprises: a water transfer chamber,

[0031] The water storage tank is arranged on the lower surface of the tank cover and is communicated with the water outlet of the water pump;

[0032] A plurality of nozzles are arranged on one side of the water transfer bin facing the mixing box.

[0033] Advantageously, the carbon fiber exhaust gas is subjected to multi-stage filtration treatment in the exhaust gas treatment device, which can effectively prevent the filter screen and the air outlet from being blocked.

[0034] Furthermore, the exhaust gas treatment device is further provided with: a sealing component,

[0035] The sealing assembly comprises: a plurality of sealing grooves, arranged on the lower surface of the box cover;

[0036] A plurality of sets of sealing rings are installed in the sealing grooves in a one-to-one correspondence.

[0037] Furthermore, the exhaust gas treatment device is further provided with: a connection seat, the connection seat is installed at the bottom end of the device body, and a drain port is provided at the center of the connection seat;

[0038] The lower end of the connecting seat is fixedly connected to a plurality of groups of supporting legs.

[0039] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0040] 1. In the waste gas treatment device of the utility model, waste gas from carbon fiber production enters the treatment device through the air inlet on the box body, undergoes multi-stage filtration treatment by the filter assembly, and is then discharged from the air outlet. The device is simple and easy to operate, and is convenient to use.

[0041] 2. The waste gas treatment device of the utility model performs multi-stage filtration on the waste gas, which can effectively prevent the filter screen, water pumping pipe and other devices from being blocked.

[0042] 3. The exhaust gas treatment device of the utility model has a box cover and a device body that can be detachably matched, so that the box cover can be easily removed from the device body, thereby facilitating the cleaning of the device body.

[0043] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0045] Figure 1 It is a schematic diagram of the appearance structure of the waste gas treatment device of the utility model;

[0046] Figure 2 This is a schematic diagram of the disassembled structure of the waste gas treatment device of the utility model when viewed from above;

[0047] Figure 3 It is a schematic diagram of the structure of the exhaust gas treatment device of the utility model from a top view;

[0048] Figure 4 It is a schematic diagram of the structure of the filter screen arranged in the waste gas treatment device of the utility model.

[0049] In the figure: 100, device body; 110, box body; 120, air inlet; 130, connecting seat; 131, supporting leg; 132, drain port; 210, first embedded groove; 220, filter box; 221, second embedded groove; 222, first air inlet pipe; 223, card slot; 230, first filter screen; 240, second filter screen; 250, stirring box; 251, second air inlet pipe; 260, sealing ring; 270, partition; 310, box cover; 311, first sealing groove; 312, second sealing groove; 313, third sealing groove; 320, driving device; 321, stirring rod; 322, stirring blade; 330, air outlet; 340, pressure detection device; 350, water pump; 351, water suction pipe; 352, water storage tank; 353, nozzle.

[0050] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0052] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] like Figures 1 to 4 As shown, the utility model provides an exhaust gas treatment device for carbon fiber production, comprising: a device body 100, the device body 100 comprises a box body 110, and a hollow chamber is formed inside the box body 110;

[0055] A filter assembly is installed in the chamber to separate the chamber into a front filter chamber and a rear filter chamber;

[0056] The box body 110 is provided with an air inlet 120, which is connected to the filter front chamber and is used to pass the carbon fiber production waste gas into the filter front chamber and enter the filter back chamber after multi-stage filtering by the filter assembly;

[0057] A box cover 310 is buckled on the box body 110, and an air outlet 330 is provided on the box cover 310;

[0058] The gas outlet 330 is communicated with the post-filtering chamber and is used to discharge the filtered gas out of the box body 110 .

[0059] In this embodiment, the exhaust gas treatment device includes an apparatus body 100, which is a cylindrical structure. The apparatus body 100 includes a box body 110, and a hollow chamber, i.e., a filter chamber, is formed inside the box body 110. An air inlet 120 is provided on the peripheral wall of the box body 110, and the exhaust gas generated by the carbon fiber production enters the box body 110 through the air inlet 120. A filter assembly is provided in the chamber of the box body 110, and the filter assembly divides the chamber into a filter front chamber and a filter rear chamber. The exhaust gas generated by the carbon fiber production enters the filter front chamber through the air inlet 120 connected to the filter front chamber, and is discharged through the air outlet 330 on the box cover 310 after multi-stage filtration by the filter assembly.

[0060] Furthermore, the filter assembly is a cylindrical structure, and the space between the outer peripheral wall of the cylindrical filter assembly and the inner peripheral wall of the box body 110 constitutes a filter antechamber;

[0061] The interior of the cylindrical filter assembly is hollow and constitutes a post-filtration chamber, and the air outlet 330 is arranged on the box cover 310 above the interior space of the cylindrical filter assembly.

[0062] In this embodiment, the filter assembly is placed in the cavity of the box body 110 and has a cylindrical structure. The space between the outer peripheral wall of the filter assembly and the inner peripheral wall of the box body 110 is the filter front chamber, that is, the carbon fiber exhaust gas entering the device body 100 through the air inlet 120 first enters the filter front chamber, that is, the space between the outer peripheral wall of the filter assembly and the inner peripheral wall of the box body 110; then after multi-stage filtration by the filter assembly, it enters the filter rear chamber formed inside the filter assembly, and is discharged from the device body 100 through the air outlet 330 arranged on the box cover 310 which is connected to the filter rear chamber.

[0063] Furthermore, the cylindrical filter assembly includes a filter box 220 disposed on the outer layer and a stirring box 250 disposed inside the filter box 220; a first air inlet pipe 222 is disposed on the filter box 220 to connect the filter box 220 with the filter antechamber; the gas filtered by the filter antechamber is passed into the filter box 220 through the first air inlet pipe 222;

[0064] The interior of the mixing box 250 constitutes a post-filtration chamber; a second air inlet pipe 251 is provided on the mixing box 250 to connect the filter box 220 and the mixing box 250 ; the gas filtered in the filter box 220 is passed into the mixing box 250 through the second air inlet pipe 251 .

[0065] In this embodiment, the cylindrical filter assembly is arranged in multiple layers, including a filter box 220 arranged in the outer layer and a stirring box 250 arranged inside the filter box 220; a first air inlet pipe 222 is provided on the filter box 220, and a second air inlet pipe 251 is provided on the stirring box 250; the waste gas generated by the carbon fiber production enters the filter antechamber through the air inlet 120 on the box body 110, and after being filtered in the filter antechamber, enters the filter box 220 through the first air inlet pipe 222, and after the filtering in the filter box 220 is completed, enters the stirring box 250 through the second air inlet pipe 251, and after the filtering in the stirring box 250 is completed, it is discharged through the air outlet 330 set on the box cover 310.

[0066] Furthermore, a first filter screen 230 is provided between the box body 110 and the filter box 220;

[0067] The inner peripheral wall of the box body 110 is provided with a plurality of groups of first embedded grooves 210, and the outer peripheral wall of the filter box 220 is provided with a plurality of groups of second embedded grooves 221 corresponding to the majority of the first embedded grooves 210 one by one;

[0068] The plurality of first filter screens 230 are detachably installed between the corresponding first embedding grooves 210 and the second embedding grooves 221 to perform primary filtering on the carbon fiber exhaust gas.

[0069] In this embodiment, a plurality of first filter screens 230 are provided between the box body 110 and the filter box 220 to perform primary filtration on the carbon fiber exhaust gas entering the box body 110. A partition 270 is provided between the filter box 220 and the box body 110, and the partition 270 fixedly connects the filter box 220 and the box body 110.

[0070] In this embodiment, a plurality of groups of first embedded grooves 210 are provided on the inner peripheral wall of the box body 110, a plurality of groups of second embedded grooves 221 corresponding to the first embedded grooves 210 are provided on the outer peripheral wall of the filter box 220, and a plurality of groups of first filter screens 230 are installed between the corresponding first embedded grooves 210 and second embedded grooves 221. When filtering the carbon fiber exhaust gas, the carbon fiber exhaust gas enters the interior of the box body 110, that is, the filter antechamber between the box body 110 and the filter box 220, through the air inlet 120 provided on the box body 110, and then passes through the first filter screen 230 for primary filtration. After the primary filtration, the carbon fiber exhaust gas enters the filter box 220 through the first air inlet pipe 222 provided on the filter box 220 for subsequent treatment.

[0071] In this embodiment, the exhaust gas treatment device body 100 is a cylindrical structure, and the shape of the box body 110 and the filter assembly is also a cylindrical structure. The first embedding groove 210 is vertically arranged on the inner wall of the box body 110, that is, it is arranged along the axial direction of the box body 110. Correspondingly, the second embedding groove 221 arranged on the outer surface of the filter box 220 is also vertically arranged, that is, it is arranged along the axial direction of the filter box 220. The first filter screen 230 is a rectangular structure, and the two vertical side edges are respectively inserted into the first embedding groove 210 and the second embedding groove 221. The length of the two lateral side edges ensures that the first filter screen 230 can be placed in the first embedding groove 210 and the second embedding groove 221 without tilting.

[0072] Furthermore, a plurality of groups of second filter screens 240 are provided between the filter box 220 and the mixing box 250;

[0073] The inner wall of the filter box 220 is provided with a plurality of groups of annular slots 223 , and the plurality of groups of second filter screens 240 are detachably arranged on the corresponding annular slots 223 to perform secondary filtration on the carbon fiber exhaust gas.

[0074] In this embodiment, the mixing box 250 is arranged inside the filter box 220, and the diameter of the mixing box 250 is smaller than the diameter of the filter box. A slot 223 is provided on the inner wall of the filter box 220. The slot 223 is arranged in a ring shape along the inner wall of the filter box 220. The second filter screen 240 is snapped into the annular slot 223, so the second filter screen 240 is an annular structure, and the difference between the inner circle diameter and the outer circle diameter is slightly larger than the distance between the mixing box 250 and the filter box 220, thereby ensuring that the second filter screen 240 can be snapped between the mixing box 250 and the filter box 220 and will not fall off.

[0075] In this embodiment, the waste gas generated by the carbon fiber production enters the box body 110 through the air inlet 120, that is, enters the filter antechamber between the box body 110 and the filter box 220, and the carbon fiber waste gas is filtered through the first filter screen 230 between the box body 110 and the filter box 220; the filtered carbon fiber waste gas enters the filter box 220 through the first air inlet pipe 222 set on the filter box 220, that is, enters the space between the filter box 220 and the mixing box 250, and is filtered through the second filter screen 240 in this space. The carbon fiber waste gas filtered by the second filter screen 240 enters the mixing box 250 through the second air inlet pipe 251 set on the mixing box 250 for subsequent treatment.

[0076] Furthermore, the exhaust gas treatment device is further provided with: a stirring device, the stirring device comprising: a driving device 320 and a stirring rod 321, the driving device 320 is provided on the upper surface of the box cover 310, the stirring rod 321 passes through the box cover 310 and extends into the stirring box 250;

[0077] The driving device 320 drives the stirring rod 321 to rotate in the stirring box 250 .

[0078] Furthermore, the exhaust gas treatment device is further provided with: a water guide component, which pumps the water in the filter box 220 into the mixing box 250;

[0079] The water guide assembly includes: a water pump 350 and a water suction pipe 351 . The water pump 350 is disposed on the upper surface of the box cover 310 . One end of the water suction pipe 351 is connected to the water inlet of the water pump 350 , and the other end extends into the filter box 220 .

[0080] Further, the water guide assembly includes: a water transfer chamber 352;

[0081] The water storage tank 352 is disposed on the lower surface of the tank cover 310 and is connected to the water outlet of the water pump 350;

[0082] A plurality of nozzles 353 are disposed on one side of the water storage tank 352 facing the mixing box 250 .

[0083] In this embodiment, the carbon fiber exhaust gas entering the filter box 220 is filtered by the second filter screen 240 and then enters the mixing box 250 through the second air inlet pipe 251. At this time, the water pump 350 of the water guide assembly is running, driving the water pump 351 to extract the liquid in the filter box 220. The liquid in the filter box 220 enters the water pump 350 through the water pump 351, and then enters the water tank 352 from the water outlet of the water pump 350, and then is sprayed into the mixing box 250 by the nozzle 353 of the water tank 352. At the same time, the driving device 320 of the stirring device drives the stirring rod 321 to rotate, and the stirring rod 321 stirs in the mixing box 250 to treat the carbon fiber exhaust gas entering the mixing box 250.

[0084] In this embodiment, the driving device 320 of the stirring device is a motor, which is arranged on the upper surface of the box cover 310. The output end of the motor is fixedly connected to the stirring rod 321, and the stirring rod 321 passes through the box cover 310 and extends to the inside of the stirring box 250. The stirring blades 322 are evenly arranged on the peripheral wall of the stirring rod 321. When the stirring device is working, the driving device 320 drives the stirring rod 321 to rotate, and the stirring blades 322 rotate with the rotation of the stirring rod 321, so as to realize the filtering treatment of the carbon fiber waste gas in the stirring box 250, and the treated gas is discharged through the gas outlet 330 on the box cover 310.

[0085] In this embodiment, the water pump 350 of the water guide assembly is arranged on the upper surface of the box cover 310, and the water inlet of the water pump 350 is connected to the water pumping pipe 351, and the water pumping pipe 351 passes through the box cover 310 and goes deep into the filter box 220 to extract the liquid in the filter box 220; the water storage tank 352 is arranged on the lower surface of the box cover 310, and the water outlet of the water pump 350 is connected to the water inlet tank, and the water storage tank 352 is an annular structure, and a plurality of groups of nozzles 353 are arranged on the side of the water storage tank 352 facing the mixing box 250. When the water guide assembly is working, the water pump 350 is running, and the water pumping pipe 351 extracts the liquid in the filter box 220, and introduces it into the water storage tank 352 through the operation of the water pump 350, and then sprays it into the mixing box 250 through the nozzles 353 arranged in the water storage tank 352.

[0086] In this embodiment, a pressure detection device 340 is also provided on the upper surface of the box cover 310 to detect the pressure in the exhaust gas treatment device and adjust the amount of gas entering the box body 110 according to the pressure in the exhaust gas treatment device detected by the pressure detection device 340 to prevent accidents.

[0087] Furthermore, the exhaust gas treatment device is further provided with: a sealing assembly for achieving sealing of the exhaust gas treatment device;

[0088] The sealing assembly includes: a plurality of sealing grooves, which are arranged on the lower surface of the box cover 310;

[0089] A plurality of sealing rings 260 are installed in the sealing grooves one by one.

[0090] In this embodiment, a sealing groove is provided on the lower surface of the box cover 310, and a sealing ring 260 is provided in the sealing groove to enhance the sealing performance between the box cover 310 and the device body 100. Specifically, in order to correspond to the box body 110, the filter box 220 and the mixing box 250 provided in the device body 100, the sealing groove is provided with a first sealing groove 311, a second sealing groove 312 and a third sealing groove 313, and the calibers of the three sealing grooves are successively reduced to correspond to the calibers of the box body 110, the filter box 220 and the mixing box 250. A sealing ring 260 is provided in the corresponding sealing groove, and the caliber of the sealing ring 260 corresponds to the caliber of the sealing groove. More specifically, the first sealing groove 311 and the sealing ring 260 placed in the first sealing groove 311 cooperate to seal the box body 110; the second sealing groove 312 and the sealing ring 260 placed in the second sealing groove 312 cooperate to seal the filter box 220; the third sealing groove 313 and the sealing ring 260 placed in the third sealing groove 313 cooperate to seal the stirring box 250, and the sealing grooves correspond one-to-one to the settings of the device body 100 to achieve the sealing of the device body 100.

[0091] In this embodiment, the sealing ring 260 is a rubber sealing ring.

[0092] Furthermore, the exhaust gas treatment device is further provided with: a connection seat 130, the connection seat 130 is installed at the bottom end of the device body 100; a drain port 132 is provided at the center of the connection seat 130 for discharging the treatment liquid in the treatment device;

[0093] The lower end of the connecting seat 130 is fixedly connected to a plurality of supporting legs 131 .

[0094] In this embodiment, a connecting seat 130 is provided at the bottom of the device body 100, and the connecting seat 130 realizes the sealing of the bottom of the device body 100; a plurality of groups of supporting legs 131 are fixedly connected to the lower surface of the connecting seat 130, which are used to support the entire exhaust gas treatment device; a drain port 132 is provided at the center of the connecting seat 130, and the carbon fiber exhaust gas enters the exhaust gas treatment device through the air inlet 120 of the box body 110, and the treated gas is discharged through the air outlet 330 on the box cover 310, and the liquid used to treat the exhaust gas inside the device body 100 becomes waste liquid after the treatment is completed, and is discharged from the drain port 132 of the connecting seat 130.

[0095] In this embodiment, when treating carbon fiber waste gas, first open the box cover 310, pour clean water into the filter box 220, then pour the treated liquid into the mixing box 250, cover the box cover 310, and transport the waste gas generated by carbon fiber production to the inside of the box body 110 through the air inlet 120. After the waste gas enters the box body 110, it is filtered through the first filter screen 230 set between the box body 110 and the filter box 220. The filtered waste gas is discharged into the filter box 220 through the first air inlet pipe 222; after entering the filter box 220, it is discharged through the filter box 220 and the mixing box 250. The second filter screen 240 arranged in the middle is used for filtering, and the filtered exhaust gas is discharged into the mixing box 250 through the second air inlet pipe 251; at the same time, the clean water in the filter box 220 is pumped into the water storage tank 352 through the water pump 350 and the water pump pipe 351, and the clean water is sprayed into the mixing box 250 through the nozzle 353. The driving device 320 drives the stirring rod 321 and the stirring blade 322 to rotate, so that the exhaust gas and the treated liquid are fully integrated, and the treated gas is discharged through the air outlet 330, and the waste liquid that treats the exhaust gas in the exhaust gas treatment device is discharged through the drain port 132.

[0096] In this embodiment, the carbon fiber exhaust gas enters through the air inlet 120 arranged on the exhaust gas treatment device box 110, and is filtered in multiple stages through the filter assembly, which can effectively prevent the blockage of the water suction pipe 351, the filter net, the air outlet 330, etc.; at the same time, the filter assembly is integrated into the box 110, so that the exhaust gas treatment device is compact, easy to move and easy to use.

[0097] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. An exhaust gas treatment device for carbon fiber production, comprising: The device body (100) is characterized in that: The device body (100) comprises: a box body (110) having a hollow chamber formed therein; A filter assembly is installed in the chamber to separate the chamber into a front filter chamber and a rear filter chamber; The box body (110) is provided with an air inlet (120), and the air inlet (120) is connected to the filter front chamber, and is used to pass the carbon fiber production waste gas into the filter front chamber, and enter the filter back chamber after multi-stage filtering treatment by the filter assembly; A box cover (310) is buckled onto the box body (110), and an air outlet (330) is provided on the box cover (310); The gas outlet (330) is in communication with the post-filtration chamber and is used to discharge the filtered gas out of the box body (110).

2. The exhaust gas treatment device for carbon fiber production according to claim 1, characterized in that: The filter assembly is a cylindrical structure, and the space between the outer peripheral wall of the cylindrical filter assembly and the inner peripheral wall of the box body (110) constitutes a filter front chamber; The internal space of the cylindrical filter assembly constitutes a filter rear chamber, and the air outlet (330) is arranged on the box cover (310) above the internal space of the cylindrical filter assembly.

3. The exhaust gas treatment device for carbon fiber production according to claim 2, characterized in that: The cylindrical filter assembly comprises a filter box (220) arranged on the outer layer and a stirring box (250) arranged inside the filter box (220); The filter box (220) is provided with a first air inlet pipe (222) which connects the filter box (220) and the filter front chamber; the gas filtered in the filter front chamber is passed into the filter box (220) through the first air inlet pipe (222); The interior of the stirring box (250) constitutes a post-filtration chamber; The stirring box (250) is provided with a second air inlet pipe (251) which connects the filter box (220) and the stirring box (250); the gas filtered in the filter box (220) is passed into the stirring box (250) through the second air inlet pipe (251).

4. The exhaust gas treatment device for carbon fiber production according to claim 3, characterized in that: A plurality of groups of first filter screens are provided between the box body (110) and the filter box (220); The inner peripheral wall of the box body (110) is provided with a plurality of groups of first embedded grooves (210), and the outer peripheral wall of the filter box (220) is provided with a plurality of groups of second embedded grooves (221) corresponding one-to-one to the first embedded grooves (210); The plurality of groups of first filter screens are detachably installed between the corresponding first embedding grooves (210) and the second embedding grooves (221).

5. The exhaust gas treatment device for carbon fiber production according to claim 3, characterized in that: A plurality of groups of second filter screens are provided between the filter box (220) and the mixing box (250); The inner peripheral wall of the filter box (220) is provided with a plurality of groups of annular grooves (223), and the plurality of groups of second filter screens are detachably arranged on the corresponding annular grooves (223).

6. The exhaust gas treatment device for carbon fiber production according to any one of claims 3 to 5, characterized in that: The exhaust gas treatment device is also provided with: a stirring device, The stirring device comprises: a driving device (320) and a stirring rod, wherein the driving device (320) is arranged on the upper surface of the box cover (310), and the stirring rod passes through the box cover (310) and extends into the stirring box (250); The driving device (320) drives the stirring rod to rotate in the stirring box (250).

7. The exhaust gas treatment device for carbon fiber production according to claim 6, characterized in that: The exhaust gas treatment device is further provided with: a water guide component, The water guide assembly comprises: a water pump (350) and a water suction pipe, wherein the water pump (350) is arranged on the upper surface of the box cover (310), one end of the water suction pipe is connected to the water inlet of the water pump (350), and the other end extends into the filter box (220).

8. The exhaust gas treatment device for carbon fiber production according to claim 7, characterized in that: The water guide assembly comprises: a water transfer chamber; The water transfer chamber is arranged on the lower surface of the tank cover (310) and is connected to the water outlet of the water pump (350); A plurality of groups of spray heads (353) are provided on one side of the water transfer chamber facing the mixing box (250).

9. The exhaust gas treatment device for carbon fiber production according to claim 7, characterized in that: The exhaust gas treatment device is further provided with: a sealing component, The sealing assembly comprises: A plurality of sealing grooves are provided on the lower surface of the box cover (310); A plurality of sets of sealing rings (260), wherein the sealing rings (260) are installed in the sealing grooves in a one-to-one correspondence.

10. The exhaust gas treatment device for carbon fiber production according to claim 9, characterized in that: The exhaust gas treatment device is further provided with: a connection seat (130), the connection seat (130) being installed at the bottom end of the device body (100); a liquid discharge port being provided at the center of the connection seat (130); The lower end of the connecting seat (130) is fixedly connected to a plurality of groups of supporting legs (131).

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