Waste gas treatment device in carbon fiber pultrusion product production

Abstract

The invention provides a waste gas treatment device in carbon fiber pultrusion product production, which comprises a shell, a material distribution disc is arranged in the shell, a heat insulation pipe is fixedly arranged on the top side of the material distribution disc, and the interior of the heat insulation pipe is communicated with the interior of the shell through a connecting piece; the first air pump is fixedly arranged on the peripheral wall of the bottom of the heat insulation pipe, the air inlet end of the first air pump communicates with the interior of the heat insulation pipe through an air inlet pipe, and the air exhaust end of the first air pump communicates with an electric control four-way valve. The invention relates to the technical field of waste gas treatment devices. When the improved waste gas treatment device is used, VOCs in waste gas are continuously filtered out through adsorption of multiple parts of zeolite on the VOCs, thermal desorption treatment of the VOCs on the zeolite is sequentially completed at the same time so as to form gas containing high-concentration VOCs, harmless treatment of the VOCs is completed through time division of high-temperature incineration, the amount of the zeolite prepared when the device is used can be greatly reduced, and the environment is protected. And the use cost of the device is reduced.

Description

TECHNICAL FIELD

[0002] The present disclosure belongs to the technical field of waste gas treatment devices, and particularly relates to a waste gas treatment device in the production of carbon fiber pultrusion products. BACKGROUND

[0003] The carbon fiber pultrusion product is a continuous fiber reinforced composite product manufactured through a pultrusion process, which combines carbon fibers with a resin matrix, and is cured through a mold to form a profile with high strength, light weight and consistent cross-sectional shape. In the production of carbon fiber pultrusion products, various resin adhesives and other auxiliary materials are often used during the curing process. These materials often release harmful gases such as VOCs during the curing process, which are generally treated by waste gas treatment devices.

[0004] The existing waste gas treatment device generally uses zeolite to adsorb VOCs in the waste gas, and then uses thermal desorption to obtain waste gas containing high-concentration VOCs, and then uses high-temperature incineration to complete the harmless treatment of VOCs. Since there is a threshold for the adsorption of VOCs by zeolite, a large amount of zeolite needs to be prepared during use, increasing the use cost of the device. SUMMARY

[0005] Therefore, the technical problem to be solved by the present application is to provide a waste gas treatment device in the production of carbon fiber pultrusion products, which can remove VOCs in the waste gas by zeolite while simultaneously completing the thermal desorption treatment of VOCs on the zeolite and recycling, greatly reducing the amount of zeolite needed during use, thereby reducing the use cost of the device.

[0006] To solve the above problems, the present application provides a waste gas treatment device in the production of carbon fiber pultrusion products, comprising: a housing, which is provided with a distribution tray inside, a heat insulation pipe is fixedly installed on the top side of the housing, and the inside of the heat insulation pipe is connected with the inside of the housing through a connecting piece; A gas pump one is fixedly installed on the outer peripheral wall at the bottom of the heat insulation pipe, and the gas inlet end thereof is connected with the inside of the heat insulation pipe through a gas inlet pipe, and the gas outlet end thereof is connected and installed with an electrically controlled four-way valve, the top end opening of the electrically controlled four-way valve is connected and installed with a gas heater, and the gas heater is fixedly connected with the outer wall of the heat insulation pipe, and the gas outlet of the gas heater is connected with the inside of the heat insulation pipe through a gas outlet pipe; A plugging mechanism one and a plugging mechanism two are respectively arranged in the upper and lower openings of the heat insulation pipe, and are respectively used for plugging the two openings of the heat insulation pipe; A feeding mechanism is arranged on the outer peripheral side of the heat insulation pipe, and is used for sucking the VOCs emitted after the carbon fiber is heat fixed into the distribution tray.

[0007] Further, the distributing disc comprises a rotating disc which is rotatably arranged in the shell through a bearing, equal-interval storage holes one, storage holes two and storage holes three are arranged on the rotating disc, and the heat insulation pipe is located above the storage holes three and communicates with the inside of the storage holes three, a drive is fixedly arranged at the bottom side of the shell, and the driving end of the drive is inserted into the shell and fixedly connected with the rotating disc.

[0008] Further, the upper and lower ends of the rotating disc are fixedly connected with sealing pads, and the reverse sides of the two sealing pads are respectively in contact with the inner walls of the upper and lower ends of the shell.

[0009] Further, the two side openings of the electric control four-way valve are respectively communicated with a material guide pipe one and a material guide pipe two, and the material guide pipe one and the material guide pipe two are soft pipes.

[0010] Further, the connecting piece comprises an air guide pipe, the two ends of the air guide pipe are fixedly connected with the top end of the heat insulation pipe and the top side of the shell, the inside of the air guide pipe communicates with the inside of the heat insulation pipe and the inside of the storage holes two, a sieve plate is fixedly arranged at the bottom side of the shell, and the top side of the sieve plate is coplanar with the bottom side of the bottom end sealing end.

[0011] Further, the first plugging mechanism comprises a limiting ring one which is fixedly arranged in the top end opening of the heat insulation pipe, the bottom side of the limiting ring one is provided with a sealing plate one, the bottom side of the sealing plate one is fixedly arranged with a piston rod, the bottom end of the piston rod is slidably sleeved with a piston cylinder, and the piston cylinder is fixedly connected with the inner wall of the heat insulation pipe through a connecting rod, and the top end of the exhaust pipe is located between the bottom side of the piston cylinder and the bottom side of the sealing plate one.

[0012] Further, the second plugging mechanism comprises a limiting ring two which is fixedly arranged in the bottom end opening of the heat insulation pipe, the bottom side of the limiting ring two is provided with a sealing plate two, the bottom side of the sealing plate two is fixedly arranged with a guide rod, the outer circumferential side of the guide rod is slidably sleeved with a sleeve ring, and the sleeve ring is fixedly connected with the inner wall of the heat insulation pipe through a supporting rod.

[0013] Further, the top sides of the limiting ring one and the limiting ring two are provided in a slope shape, the top sides of the sealing plate one and the sealing plate two are provided in an arc shape, and the arc surfaces of the sealing plate one and the sealing plate two are respectively in contact with the inner ring edges of the bottom ends of the limiting ring one and the limiting ring two.

[0014] Further, the ring wall of the limiting ring two is provided in a hollow shape, and a plurality of filter holes are arranged at equal intervals on the inner hole wall of the limiting ring two, and the bottom end of the air inlet pipe is fixedly inserted into the limiting ring two.

[0015] Further, the feeding mechanism comprises a rectangular tube, the two ends of which are provided with sealing members in the openings thereof for sealing the gap between the carbon fiber extruded product and the inner wall of the openings of the two ends of the rectangular tube, the upper and lower sides of the shell are both fixedly provided with flared tubes corresponding to the position of the storage hole one, the interiors of the two flared tubes are both in communication with the interior of the storage hole one, the bottom end of the flared tube is provided with a gas pump two in communication, the gas inlet end of the gas pump two and the interior of the top flared tube are both in communication with the interior of the rectangular tube through a flow guide member.

[0016] Further, the sealing member comprises a plurality of rotating shafts which are rotatably arranged in the openings of the two ends of the rectangular tube, the outer circumferential side of the rotating shaft is fixedly provided with a soft sleeve, the outer wall of the soft sleeve is in contact with the inner wall of the rectangular tube and the outer circumferential wall of the adjacent soft sleeve, the sleeve wall of the soft sleeve is hollow and filled with air.

[0017] Further, the flow guide member comprises a shunt pipe, the two shunt pipes are fixedly and penetratingly arranged on the middle part of the upper and lower sides of the rectangular tube, the shape of the cross section of the inner hole of the shunt pipe is trapezoidal, the interiors of the two shunt pipes are both in communication with the gas inlet end of the gas pump two and the interior of the top flared tube through a conduit respectively.

[0018] To sum up, the present application has the following beneficial technical effects: 1. The improved waste gas treatment device uses a plurality of zeolites to adsorb VOCs, continuously filters out VOCs in the waste gas, and at the same time, sequentially completes the thermal desorption treatment of VOCs on the zeolite to form a gas containing high concentration VOCs, and the harmless treatment of VOCs is completed by high temperature incineration, which can greatly reduce the amount of zeolite prepared during the use of the device and reduce the use cost of the device.

[0019] 2. According to the above, during the use of the device, the thermal desorption treatment of the zeolite and the reuse of the zeolite are completed synchronously during the continuous waste gas treatment process, which avoids the replacement operation of the zeolite and reduces the working intensity of the operator during the use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the overall structure of the present application; Figure 2 It is a front view of the internal structure of the shell and the heat insulation pipe of the present application; Figure 3 It is a perspective view of the distribution disc of the present application; Figure 4 It is a perspective view of the internal structure of the shell of the present application; Figure 5 It is a perspective view of the internal structure of the limiting ring one and the sealing plate one of the present application; Figure 6 It is a perspective view of the internal structure of the limiting ring two and the sealing plate two of the present application; Figure 7 It is a perspective view of the internal structure of the shell and the soft sleeve of the present application. Figure 8 It is a perspective view of the internal structure of the shell and the shunt pipe of the present application.

[0021] The reference signs are shown as follows: 1, shell; 2, distribution disc; 21, rotating disc; 22, storage hole one; 23, storage hole two; 24, storage hole three; 25, sealing gasket; 26, driver; 3, connecting piece; 31, air guide pipe; 32, sieve plate; 4, plugging mechanism one; 41, limiting ring one; 42, sealing plate one; 43, piston rod; 44, piston cylinder; 5, plugging mechanism two; 51, limiting ring two; 52, sealing plate two; 53, guide rod; 54, sleeve ring; 55, filter hole; 6, feeding mechanism; 61, rectangular tube; 62, plugging piece; 621, rotating shaft; 622, soft sleeve; 63, flared tube; 64, flow guide piece; 641, shunt pipe; 642, guide pipe; 65, air pump two; 7, air pump one; 8, air inlet pipe; 9, electric control four-way valve; 10, gas heater; 11, air outlet pipe; 12, material guide pipe one; 13, material guide pipe two; 14, heat insulation pipe. DETAILED DESCRIPTION

[0022] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0024] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0025] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0026] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , according to embodiment 1 of the present application, a waste gas treatment device in carbon fiber pultrusion production is provided, comprising: a shell 1, which is provided with a distribution tray 2, the top side of which is fixedly provided with a heat insulation pipe 14, and the inside of the heat insulation pipe 14 is connected with the inside of the shell 1 through a connecting piece 3; A gas pump 7 is fixedly arranged on the outer wall of the bottom of the heat insulation pipe 14, and the gas inlet end thereof is connected with the inside of the heat insulation pipe 14 through a gas inlet pipe 8, and the gas outlet end thereof is connected with an electrically controlled four-way valve 9, the top end opening of the electrically controlled four-way valve 9 is connected with a gas heater 10, and the gas heater 10 is fixedly connected with the outer wall of the heat insulation pipe 14, and the gas outlet of the gas heater 10 is connected with the inside of the heat insulation pipe 14 through a gas outlet pipe 11; A blocking mechanism 4 and a blocking mechanism 5 are arranged in the upper and lower openings of the heat insulation pipe 14 respectively, and are used for blocking the two openings of the heat insulation pipe 14 respectively; A feeding mechanism 6 is arranged on the outer circumferential side of the heat insulation pipe 14, which is used for sucking the VOCs emitted after the heat fixation of the carbon fiber into the distribution tray 2.

[0027] In this embodiment, the improved waste gas treatment device is used, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the gas around the carbon fiber product after heat fixation is continuously extracted by the feeding mechanism 6, and injected into the distribution tray 2, (the distribution tray 2 is filled with several portions of zeolite, the gas extracted by the feeding mechanism 6 is injected into the gap between the zeolite of each portion, and the filled zeolite is in the form of small particles), and then the gas reflows to the outer circumferential side of the carbon fiber product after passing through the gap between the zeolite, to form a gas circulation, so that the carbon fiber product after heat fixation emits VOCs is fully removed by the gas flow and the zeolite, and the VOCs are intercepted from the gas flow by the adsorption of the zeolite to the VOCs; Please refer to Figure 2 , Figure 3 and Figure 4As shown, the distribution disc 2 rotates in time, adjusting the position of each portion of zeolite in the shell 1, when the zeolite containing VOCs is moved to the position of the connecting piece 3, the air pump one 7 starts to continuously extract the gas at the bottom of the heat insulation pipe 14, and discharges to the outside of the heat insulation cylinder through one side opening of the electric control four-way valve 9, at this time, the pressure difference is formed between the heat insulation pipe 14 and the distribution disc 2, and the external gas continuously flows into the heat insulation cylinder after passing through the distribution disc 2, thereby moving the zeolite containing VOCs into the heat insulation pipe 14 by air flow, and the zeolite containing VOCs is stably placed in the heat insulation pipe 14 due to the blocking of the bottom opening of the heat insulation pipe 14 by the blocking mechanism, (at this time, the gas blowing on the zeolite is a gas with lower temperature, which almost does not cause the VOCs adsorbed by the zeolite to be desorbed from the zeolite), then the electric control four-way valve 9 is started, so that the gas discharged by the air pump one 7 is directly injected into the gas heater 10, (the gas heater 10 is a micro tube heater, and the model can be OMEGACSH-202300, etc.), then the gas flows out of the gas heater 10 and is re-injected into the top of the heat insulation pipe 14 through the exhaust pipe 11, due to the blocking of the top opening of the heat insulation pipe 14 by the blocking mechanism one 4, the gas circulation in the heat insulation pipe 14 is formed, in the process of the gas circulation in the heat insulation pipe 14, the gas is gradually heated to 200-300 degrees, thereby heating the zeolite containing VOCs to complete the thermal desorption of VOCs on the zeolite, and the VOCs only dissolve in a small amount of gas in the heat insulation pipe 14 to form a gas containing high-concentration VOCs, finally, the electric control four-way valve 9 is started, and the air pump one 7 extracts the gas containing high-concentration VOCs and discharges it from another side opening of the electric control four-way valve 9, after the gas containing high-concentration VOCs in the heat insulation pipe 14 is discharged, the electric control four-way valve 9 is started, so that the exhaust end of the air pump one 7 is communicated with one side opening of the electric control four-way valve 9, thereby making the air pump one 7 continuously extract the external gas and discharge it from one side opening of the electric control four-way valve 9, so as to complete the cooling treatment of the zeolite by continuously blowing the zeolite with the gas with lower temperature, after the cooling treatment of the zeolite is completed, the air pump stops running, at this time, due to the pressing of the zeolite on the blocking mechanism two 5, the blocking of the bottom opening of the heat insulation pipe 14 by the blocking mechanism two 5 is automatically released, and the zeolite after thermal desorption falls into the distribution disc 2 again for reuse; As described above, in the process of treating VOCs in waste gas by using zeolite, the thermal desorption of VOCs on the zeolite can be sequentially completed, the amount of zeolite required for use of the device can be greatly reduced, the use cost of the device is reduced, the replacement operation of the zeolite is avoided, and the working intensity of the operator is reduced when the device is used; It should be noted that the operation of the whole device is automatically controlled by an external control host.

[0028] In a further preferred embodiment of the present application, as shown in Figure 2 , Figure 3 and Figure 4As shown, the distribution tray 2 comprises a rotating disc 21 rotatably arranged in the shell 1 through bearings, the rotating disc 21 is provided with the storage holes one 22, the storage holes two 23 and the storage holes three 24 at equal intervals, the heat insulation pipe 14 is located above the storage holes three 24 and communicates with the inside of the storage holes three 24, and the bottom side of the shell 1 is fixedly provided with a driver 26, and the driving end of the driver 26 is inserted into the shell 1 and fixedly connected with the rotating disc 21.

[0029] In the embodiment, as shown in Figure 2 , Figure 3 and Figure 4 , during the use of the device, the rotating disc 21 is driven by the driver 26 to rotate in the shell 1 by a corresponding angle at a fixed time, (the driver 26 is composed of the shell 1, a servo motor and a gear transmission structure and the like), and two of the storage holes one 22, the storage holes two 23 and the storage holes three 24 store zeolite, so as to provide a transfer space for the zeolite for the thermal desorption reuse of the zeolite.

[0030] In a further preferred embodiment of the present application, as shown in Figure 3 and Figure 4 , the upper and lower ends of the rotating disc 21 are fixedly connected with sealing pads 25, and the reverse sides of the two sealing pads 25 respectively contact the inner walls of the upper and lower ends of the shell 1.

[0031] In the embodiment, as shown in Figure 3 and Figure 4 , during the rotation of the rotating disc 21 in the shell 1, the gaps between the upper and lower sides of the rotating disc 21 and the inner walls of the shell 1 are blocked by the sealing pads 25, so that the gas can be injected into the storage holes one 22, the storage holes two 23 or the storage holes three 24 during the injection of the gas into the storage holes one 22, the storage holes two 23 or the storage holes three 24.

[0032] In a further preferred embodiment of the present application, as shown in Figure 1 , the two side openings of the electrically controlled four-way valve 99 are respectively communicated with a material guide pipe one 1212 and a material guide pipe two 1313, and the material guide pipe one 1212 and the material guide pipe two 1313 are soft pipes.

[0033] In the embodiment, as shown in Figure 1 and Figure 2 , when the gas containing almost no VOCs is discharged from one side opening of the electrically controlled four-way valve 9, it is directly discharged into the material guide pipe one 12, and then the gas is guided by the material guide pipe one 12 to be discharged outside the factory; When the gas containing high concentration of VOCs is discharged from the other side opening of the electrically controlled four-way valve 9, it is directly discharged into the material guide pipe two 13, and then the gas is guided by the material guide pipe two 13 into the existing high-temperature incineration equipment for harmless treatment of the waste gas, so as to avoid the influence of a large amount of leakage of VOCs during storage on the health of the operators.

[0034] In further preferable embodiments of the present application, as shown in Figure 2 The connecting member 3 comprises an air duct 31, the two ends of which are fixedly connected with the top end of the heat insulation pipe 14 and the top side of the housing 1 respectively, and the inside of the air duct 31 communicates with the inside of the heat insulation pipe 14 and the inside of the storage hole two 23. The bottom side of the housing 1 is fixedly provided with a sieve plate 32, and the top side of the sieve plate 32 is coplanar with the bottom side of the bottom end sealing end 25.

[0035] In the present embodiment, as shown in Figure 2 When the air pump one 7 extracts the gas at the bottom of the heat insulation pipe 14, the electrically controlled four-way valve 9 is started at the same time, so that the inside of the heat insulation pipe 14 communicates with the inside of the storage hole one 22, the storage hole two 23 or the storage hole three 24 through the air duct 31. (The duct 642 is divided into a corrugated pipe and two flared connecting pipes, which are fixedly provided at the top end of the heat insulation pipe 14 and the position of the storage hole two 23 on the top side of the housing 1 respectively, and the two ends of the corrugated pipe are screwed into the top end openings of the two flared connecting pipes respectively), at this time, the gas in the storage hole one 22, the storage hole two 23 or the storage hole three 24 flows into the heat insulation pipe 14 through the air duct 31 to supplement the lost gas in the heat insulation pipe 14, at the same time, a pressure difference is formed on both sides of the sieve plate 32, (the sieve plate 32 simultaneously filters the dust in the air), the external gas flows into the storage hole one 22, the storage hole two 23 or the storage hole three 24 through the sieve holes of the sieve plate 32 to supplement the lost gas in the storage hole one 22, the storage hole two 23 or the storage hole three 24, so that a directional airflow is continuously formed in the storage hole one 22, the storage hole two 23 or the storage hole three 24 and the air duct 31, (the airflow formation time is controlled by the electrically controlled four-way valve 9), so that the zeolite is pushed into the heat insulation pipe 14 by the airflow flowing in the corresponding time; When the zeolite is cooled, the above-mentioned continuous suction of the gas with lower external temperature can also be used to cool the zeolite; At the same time, in the process of pushing the zeolite into the heat insulation pipe 14 or cooling the zeolite, the zeolite is backflushed by the airflow to blow off the dust and other small particle impurities attached to the zeolite, and the zeolite is discharged through the material guide pipe one 12 to complete the cleaning of the zeolite, without the need to set up an extra structure, thereby reducing the production cost of the device.

[0036] In further preferable embodiments of the present application, as shown in Figure 2 and Figure 5As shown, the plugging mechanism one 4 includes a limiting ring one 41 fixedly arranged in the top opening of the heat insulation pipe 14, the bottom side of the limiting ring one 41 is provided with a sealing plate one 42, the bottom side of the sealing plate one 42 is fixedly arranged with a piston rod 43, the bottom end of the piston rod 43 is slidingly sleeved with a piston cylinder 44, and the piston cylinder 44 is fixedly connected with the inner wall of the heat insulation pipe 14 through a connecting rod. The top end of the exhaust pipe 11 is located between the bottom side of the piston cylinder 44 and the bottom side of the sealing plate one 42.

[0037] In this embodiment, please refer to Figure 2 and Figure 5 As shown, when the air pump one 7 extracts the external gas, the pressure difference is generated between the upper and lower sides of the sealing plate one 42 with the loss of the gas in the heat insulation pipe 14. At this time, the sealing plate one 42 is separated from the limiting ring one 41 due to the pushing of the gas to the sealing plate one 42, and the plugging state of the top opening of the heat insulation pipe 14 is automatically released. When the air pump one 7 drives the gas in the heat insulation pipe 14 to circulate, the negative pressure state in the heat insulation pipe 14 is released. At this time, the sealing plate one 42 is automatically moved up and attached to the limiting ring due to the pushing of the gas in the piston cylinder 44 to the piston rod 43 (the piston cylinder 44 is filled with gas, so that a high-pressure cavity is formed in the piston cylinder 44, thereby making the piston cylinder 44, the piston rod 43 and the gas form an elastic structure to continuously exert an upward pushing force on the sealing plate one 42), and the plugging of the top opening of the heat insulation pipe 14 is re-completed. The device has high automation degree.

[0038] In a further preferred embodiment of the present application, as shown in Figure 2 and Figure 6 The plugging mechanism two 5 includes a limiting ring two 51 fixedly arranged in the bottom opening of the heat insulation pipe 14, the bottom side of the limiting ring two 51 is provided with a sealing plate two 52, the bottom side of the sealing plate two 52 is fixedly arranged with a guide rod 53, the outer circumferential side of the guide rod 53 is slidingly sleeved with a sleeve ring 54, and the sleeve ring 54 is fixedly connected with the inner wall of the heat insulation pipe 14 through a support rod.

[0039] In this embodiment, please refer to Figure 2 and Figure 6 As shown, when the air pump one 7 extracts the gas at the bottom of the heat insulation pipe 14, part of the gas in the storage hole one 22, the storage hole two 23 or the storage hole three 24 flows upward and flows into the bottom opening of the heat insulation pipe 14, thereby pushing the sealing plate two 52 and the limiting ring two 51 to be attached, so as to automatically plug the bottom opening of the heat insulation pipe 14. When the air pump one 7 stops running, the negative pressure state in the heat insulation pipe 14 disappears due to the inflow of the external gas. At this time, the sealing plate two 52 is automatically moved down and reset due to the action of its own gravity, so as to release the plugging state of the bottom opening of the heat insulation pipe 14. During the up and down movement of the second sealing plate 52, the second sealing plate 52 moves in a linear track to avoid position deviation during the movement of the second sealing plate 52 and affect the use of the device, due to the mutual interference between the guide rod 53 and the inner wall of the sleeve ring 54.

[0040] In further preferable embodiments of the present application, as shown in Figure 2 、 Figure 5 and Figure 6 , the top side of the first limiting ring 41 and the top side of the second limiting ring 51 are both provided in a slope shape, the top side of the first sealing plate 42 and the top side of the second sealing plate 52 are both provided in an arc shape, and the arc of the first sealing plate 42 and the arc of the second sealing plate 52 are in contact with the inner ring edge of the bottom end of the first limiting ring 41 and the inner ring edge of the bottom end of the second limiting ring 51, respectively.

[0041] In the present embodiment, as shown in Figure 2 、 Figure 5 and Figure 6 , the slope of the top side of the first limiting ring 41 and the second limiting ring 51 can make the zeolite particles falling on the top side of the first limiting ring 41 and the second limiting ring 51 directly slide along the slope, so as to avoid a small amount of zeolite particles being intercepted by the first limiting ring 41 or the second limiting ring 51 and affect the use of the device.

[0042] In further preferable embodiments of the present application, as shown in Figure 2 and Figure 6 , the ring wall of the second limiting ring 51 is provided in a hollow shape, and a plurality of filter holes 55 are arranged on the inner hole wall of the second limiting ring 51 at equal intervals, and the bottom end of the air inlet pipe 8 is fixedly inserted into the second limiting ring 51.

[0043] In the present embodiment, as shown in Figure 2 and Figure 6 , when the air pump 7 draws the gas at the bottom of the heat insulation pipe 14 through the air inlet pipe 8, the gas in the second limiting ring 51 is drawn first, and then the gas in the inner hole of the second limiting ring 51 is drawn through the filter holes 55. Since the amount of gas passing through a single filter hole 55 is limited, the gas at the bottom of the heat insulation pipe 14 can be drawn from multiple positions at the bottom of the zeolite particles in the heat insulation pipe 14 at the same time, so as to avoid the gas passing through the zeolite particles in the heat insulation pipe 14 all the time and affect the use of the device.

[0044] In further preferable embodiments of the present application, as shown in Figure 1 、 Figure 7 and Figure 8As shown, the feeding mechanism 6 comprises a rectangular tube 61, two ends of which are provided with a blocking member 62 for blocking the gap between the carbon fiber extruded product and the inner wall of the two end openings of the rectangular tube 61. The upper and lower sides of the shell 1 are both provided with a flared tube 63 corresponding to the position of the storage hole 22, and the interiors of the two flared tubes 63 are both communicated with the interior of the storage hole 22. The bottom end of the bottom flared tube 63 is communicated with a gas pump 2 65. The gas inlet end of the gas pump 2 65 and the interior of the top flared tube 63 are both communicated with the interior of the rectangular tube 61 through a flow guide member 64.

[0045] In this embodiment, the rectangular tube 61 is supported by the bracket and placed in the air, and the carbon fiber product after heating and curing is passed through the inner hole of the rectangular tube 61. Please refer to Figure 1 and Figure 7 As shown, due to the blocking of the blocking member 62 to the gap between the carbon fiber product and the inner wall of the two end openings of the rectangular tube 61, the carbon fiber product in the middle of the rectangular tube 61 is in a closed cavity. Please refer to Figure 1 , Figure 4 , Figure 7 and Figure 8 When removing the VOCs emitted by the carbon fiber product after heating and curing, the gas pump 2 65 starts to continuously extract the gas in the storage hole 22, the storage hole 23 or the storage hole 24 through the bottom flared tube 63, and then guides the gas into the rectangular tube 61 from the bottom side of the rectangular tube 61 through the flow guide member 64. Then the gas in the rectangular tube 61 is guided out from the bottom side of the rectangular tube 61 through the flow guide member 64, and then guided into the top flared tube 63, and then flows into the storage hole 22, the storage hole 23 or the storage hole 24, so as to form the circulation of the gas in the rectangular tube 61 and the interior of the storage hole 22, the storage hole 23 or the storage hole 24. Therefore, the VOCs emitted by the carbon fiber product are carried into the storage hole 22, the storage hole 23 or the storage hole 24 by the airflow, and pass through the gap between the zeolite particles, so as to be filtered out from the airflow by the adsorption of the zeolite to the VOCs, which can greatly avoid the emission of VOCs to the air outside the device. The setting of the flared tube 63 can enlarge the blowing area of the gas and reduce the flow rate of the gas when the gas in the flow guide member 64 flows into the top flared tube 63.

[0046] In a further preferred embodiment of the present application, as shown in Figure 7 The blocking member 62 comprises a plurality of rotating shafts 621 which are rotatably arranged in the openings of the two ends of the rectangular tube 61. The rotating shafts 621 are fixedly sleeved with soft sleeves 622, and the outer wall of the soft sleeve 622 is in contact with the inner wall of the rectangular tube 61 and the outer peripheral wall of the adjacent soft sleeve 622. The sleeve wall of the soft sleeve 622 is hollow and filled with air.

[0047] In this embodiment, please refer toFigure 7 As shown, when the carbon fiber product is threaded through the inner hole of the rectangular tube 61, the corresponding positions of the soft sleeve 622 are deformed to form corresponding gaps between the two soft sleeves 622 for the carbon fiber product to pass through. During the threading of the carbon fiber product in the rectangular tube 61, as the carbon fiber product is threaded in the rectangular tube 61, the soft sleeve 622 rotates around the rotating shaft 621, and the corresponding positions of the soft sleeve 622 are correspondingly deformed by rotation, while maintaining the gap between the carbon fiber product and the inner wall of the opening of the rectangular tube 61, to avoid mutual friction between the surface of the carbon fiber product and external objects, so as to avoid surface wear of the carbon fiber product affecting the quality of the carbon fiber product.

[0048] In further preferred embodiments of the present application, as shown in Figure 1 and Figure 8 The flow guide 64 includes a shunt pipe 641, which is fixed and penetrates the middle of the upper and lower sides of the rectangular tube 61. The inner hole of the shunt pipe 641 is in the shape of a trapezoid, and the interiors of the two shunt pipes 641 are respectively connected to the gas inlet end of the air pump two 65 and the interior of the top flared pipe 63 through the conduit 642.

[0049] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 8 The gas extracted by the air pump two 65 is injected into the shunt pipe 641 through the conduit 642. Due to the restriction of the flow rate of the gas passing through the opening of the shunt pipe 641, the gas injected into the shunt pipe 641 will simultaneously diffuse in the shunt pipe 641, and then linear gas flow will be sprayed out of the opening of the shunt pipe 641, increasing the blowing area of the gas flow at the shunt pipe 641 to the carbon fiber product.

[0050] Working principle: When the improved waste gas treatment device is in use, the air pump two 65 drives the circulation of the gas in the rectangular tube 61 and the gas in the storage hole one 22, the storage hole two 23 or the storage hole three 24, so as to drive the VOCs emitted by the carbon fiber product after heating and solidification to contact the zeolite, and then the VOCs are stripped out of the gas flow by the adsorption of the zeolite to the VOCs. Then, through the rotation of the rotating disc 21 in the housing 1 and the cooperation of the air pump and the gas heater 10, the thermal desorption of the zeolite attached to the VOCs is completed, and the gas containing high concentration of VOCs is formed and guided out of the heat insulation pipe 14. The harmless treatment of VOCs is completed by high temperature incineration, and then after the thermal desorption treatment is completed, the zeolite is cooled and reused by falling into the storage hole one 22, the storage hole two 23 or the storage hole three 24.

[0051] Those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0052] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A waste gas treatment device in the production of carbon fiber pultrusions, characterized by, Include: The shell (1) is provided with a distribution disc (2) inside, the top side of which is fixedly provided with a heat insulation pipe (14), and the inside of the heat insulation pipe (14) is connected with the inside of the shell (1) through a connecting piece (3); Air pump one (7) is fixedly provided on the outer wall of the bottom of the heat insulation pipe (14), and the air inlet end thereof is communicated with the inside of the heat insulation pipe (14) through an air inlet pipe (8), and the air outlet end thereof is communicated with an electrically controlled four-way valve (9), and the top opening of the electrically controlled four-way valve (9) is communicated with a gas heater (10), and the gas heater (10) is fixedly connected with the outer wall of the heat insulation pipe (14), and the air outlet of the gas heater (10) is communicated with the inside of the heat insulation pipe (14) through an air outlet pipe (11); The blocking mechanism one (4) and the blocking mechanism two (5) are respectively arranged in the upper and lower openings of the heat insulation pipe (14), and are respectively used for blocking the two openings of the heat insulation pipe (14); The feeding mechanism (6) is arranged on the outer circumferential side of the heat insulation pipe (14), and is used for sucking the VOCs emitted after the carbon fiber is heat fixed into the distribution disc (2).

2. The exhaust gas treatment device for carbon fiber pultrusion production according to claim 1, wherein The distribution disc (2) comprises a rotating disc (21) which is rotatably arranged in the shell (1) through a bearing, and the rotating disc (21) is provided with a first storage hole (22), a second storage hole (23) and a third storage hole (24) at equal intervals, and the heat insulation pipe (14) is located above the third storage hole (24) and is communicated with the inside of the third storage hole (24), and the bottom side of the shell (1) is fixedly provided with a driver (26), and the driving end of the driver (26) is inserted into the shell (1) and is fixedly connected with the rotating disc (21), and the upper and lower ends of the rotating disc (21) are fixedly connected with sealing pads (25), and the reverse sides of the two sealing pads (25) are respectively in contact with the inner walls of the upper and lower ends of the shell (1).

3. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 2, characterized in that, The two side openings of the electrically controlled four-way valve (9) are respectively communicated with a first material guide pipe (12) and a second material guide pipe (13), and the first material guide pipe (12) and the second material guide pipe (13) are both soft pipes.

4. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 3, characterized in that, The connecting piece (3) comprises a gas guide pipe (31), the two ends of which are fixedly connected with the top end of the heat insulation pipe (14) and the top side of the shell (1), and the inside of the gas guide pipe (31) is communicated with the inside of the heat insulation pipe (14) and the inside of the second storage hole (23), and the bottom side of the shell (1) is fixedly provided with a sieve plate (32), and the top side of the sieve plate (32) is coplanar with the bottom side of the bottom end (25).

5. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 4, characterized in that, The blocking mechanism one (4) comprises a limiting ring one (41) which is fixedly arranged in the top opening of the heat insulation pipe (14), and the bottom side of the limiting ring one (41) is provided with a sealing plate one (42), and the bottom side of the sealing plate one (42) is fixedly provided with a piston rod (43), and the bottom end of the piston rod (43) is slidably sleeved with a piston cylinder (44), and the piston cylinder (44) is fixedly connected with the inner wall of the heat insulation pipe (14) through a connecting rod, and the top end of the air outlet pipe (11) is located between the bottom side of the piston cylinder (44) and the bottom side of the sealing plate one (42).

6. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 5, characterized in that, The sealing mechanism two (5) includes a limiting ring two (51) fixedly arranged in the bottom opening of the heat insulation pipe (14), the bottom side of the limiting ring two (51) is provided with a sealing plate two (52), the bottom side of the sealing plate two (52) is fixedly arranged with a guide rod (53), the outer circumferential side of the guide rod (53) is slidingly sleeved with a sleeve ring (54), and the sleeve ring (54) is fixedly connected with the inner wall of the heat insulation pipe (14) through a support rod.

7. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 6, characterized in that The top side of the limiting ring one (41) and the top side of the limiting ring two (51) are both provided in a slope shape, the top side of the sealing plate one (42) and the top side of the sealing plate two (52) are both provided in an arc shape, the arc surface of the sealing plate one (42) and the arc surface of the sealing plate two (52) are respectively in contact with the inner ring edge of the bottom end of the limiting ring one (41) and the inner ring edge of the bottom end of the limiting ring two (51), the ring wall of the limiting ring two (51) is provided in a hollow shape, and a plurality of filter holes (55) are arranged at equal intervals on the inner hole wall of the limiting ring two (51), and the bottom end of the air inlet pipe (8) is fixedly inserted into the limiting ring two (51).

8. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 7, characterized in that, The feeding mechanism (6) includes a rectangular tube (61), the two end openings of which are provided with sealing members (62) for sealing the gap between the carbon fiber drawn extruded product and the inner wall of the two end openings of the rectangular tube (61), the upper and lower sides of the shell (1) are both fixedly arranged with flared tubes (63) corresponding to the positions of the storage holes one (22), the interiors of the two flared tubes (63) are both in communication with the interior of the storage hole one (22), the bottom end of the flared tube (63) is communicated and arranged with an air pump two (65), and the air inlet end of the air pump two (65) and the interior of the top flared tube (63) are both in communication with the interior of the rectangular tube (61) through a flow guide member (64).

9. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 8, characterized in that, The sealing member (62) includes a plurality of rotating shafts (621) rotatably arranged in the two end openings of the rectangular tube (61), the outer circumferential side of the rotating shaft (621) is fixedly sleeved with a soft sleeve (622), the outer wall of the soft sleeve (622) is in contact with the inner wall of the rectangular tube (61) and the outer circumferential wall of the adjacent soft sleeve (622), and the sleeve wall of the soft sleeve (622) is provided in a hollow shape and filled with air.

10. A device for treating exhaust gas in the production of a carbon fiber pultrusion product according to claim 9, characterized in that, The flow guide member (64) includes a shunt pipe (641), the two shunt pipes (641) are fixedly and penetratingly arranged on the middle portions of the upper and lower sides of the rectangular tube (61), the shape of the cross section of the inner hole of the shunt pipe (641) is provided in a trapezoidal shape, and the interiors of the two shunt pipes (641) are both in communication with the air inlet end of the air pump two (65) and the interior of the top flared tube (63) through a conduit (642).

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