A waste gas treatment device in carbon fiber pultrusion production

Abstract

The present disclosure provides a kind of waste gas disposal device in carbon fiber pultrusion production, comprising: shell, it is equipped with distribution tray in, the top side of it is fixedly equipped with heat insulation pipe, and the inside of heat insulation pipe is connected with the inside of shell by connecting piece and communicates;Gas pump one, it is fixedly equipped on the outer wall of the bottom of heat insulation pipe, and its air inlet end is communicated with the inside of heat insulation pipe by air inlet pipe, and its exhaust end is communicatedly equipped with electric control four-way valve.The present disclosure relates to waste gas disposal device technical field.This improved waste gas disposal device uses, by the adsorption of several parts zeolite to VOCs, continuously filter out VOCs in waste gas, and simultaneously sequentially complete the thermal desorption treatment of VOCs on zeolite, to form the gas containing high concentration VOCs, by high-temperature incineration Time-sharing complete VOCs harmless treatment, can greatly reduce the amount of zeolite prepared when using device, and reduce the use cost of device.

Description

Technical Field

[0001] This disclosure belongs to the technical field of waste gas treatment devices, specifically relating to a waste gas treatment device in the production of carbon fiber pultruded products. Background Technology

[0002] Carbon fiber pultrusion products are continuous fiber-reinforced composite materials manufactured through a pultrusion molding process. This process combines carbon fibers with a resin matrix and heats and cures them through a mold to form high-strength, lightweight profiles with consistent cross-sectional shapes. During the production of carbon fiber pultrusion products, various resin adhesives and other auxiliary materials are often used during the heat curing process. These materials often release harmful gases such as VOCs during the heat curing process, and the harmful gases in the waste gas are generally treated to render them harmless through waste gas treatment devices.

[0003] Existing waste gas treatment devices generally use zeolite to adsorb VOCs in waste gas, then obtain waste gas containing high concentrations of VOCs through thermal desorption, and finally complete the harmless treatment of VOCs through high-temperature incineration. Since zeolite has a threshold for VOCs adsorption, a large amount of zeolite is often required during the operation of the device, which increases the operating cost of the device. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a waste gas treatment device in the production of carbon fiber pultrusion products. While removing VOCs from the waste gas through zeolite, the device simultaneously completes the thermal desorption treatment of VOCs on the zeolite and reuses them, which greatly reduces the amount of zeolite that needs to be prepared when using the device, thereby reducing the cost of using the device.

[0005] To address the aforementioned problems, the present invention provides a waste gas treatment device for the production of carbon fiber pultruded products, comprising: an outer shell, wherein a material distribution plate is provided inside, and a heat insulation pipe is fixedly installed on the top side of the outer shell, and the interior of the heat insulation pipe is connected to the interior of the outer shell through a connector.

[0006] Air pump 1 is fixedly installed on the outer peripheral wall of the bottom of the heat insulation tube, and its air inlet end is connected to the inside of the heat insulation tube through an air inlet pipe. Its exhaust end is connected to an electrically controlled four-way valve. The top opening of the electrically controlled four-way valve is connected to a gas heater, and the gas heater is fixedly connected to the outer wall of the heat insulation tube. The exhaust port of the gas heater is connected to the inside of the heat insulation tube through an exhaust pipe.

[0007] The sealing mechanism one and the sealing mechanism two are respectively located in the upper and lower openings of the heat insulation pipe, and are used to seal the two openings of the heat insulation pipe respectively;

[0008] The feeding mechanism, located on the outer periphery of the heat insulation pipe, is used to draw the VOCs emitted after the carbon fiber is thermally fixed into the distribution tray.

[0009] Furthermore, the material distribution plate includes a turntable, which is rotatably mounted inside the housing via bearings. The turntable has three storage holes at equal intervals: a first storage hole, a second storage hole, and a third storage hole. The heat insulation tube is located above the third storage hole and communicates with the interior of the third storage hole. A driver is fixedly mounted on the bottom side of the housing, and the driving end of the driver is inserted into the housing and fixedly connected to the turntable.

[0010] Furthermore, sealing gaskets are fixedly connected to both the upper and lower ends of the turntable, and the opposite sides of the two sealing gaskets are in contact with the inner walls of the upper and lower ends of the outer casing, respectively.

[0011] Furthermore, the two side openings of the electrically controlled four-way valve are respectively connected to a guide pipe one and a guide pipe two, and both the guide pipe one and the guide pipe two are soft pipes.

[0012] Furthermore, the connector includes an air guide pipe, the two ends of which are fixedly connected to the top of the heat insulation pipe and the top side of the outer shell, respectively, and the interior of the air guide pipe is connected to the interior of the heat insulation pipe and the interior of the second storage hole. A sieve plate is fixedly installed on the bottom side of the outer shell, and the top side of the sieve plate is coplanar with the bottom side of the bottom sealing end.

[0013] Furthermore, the sealing mechanism includes a limiting ring, which is fixedly installed in the top opening of the heat insulation pipe. A sealing plate is provided on the bottom side of the limiting ring, and a piston rod is fixedly installed on the bottom side of the sealing plate. A piston cylinder is slidably sleeved on the bottom end of the piston rod, and the piston cylinder is fixedly connected to the inner wall of the heat insulation pipe through a connecting rod. 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.

[0014] Furthermore, the second sealing mechanism includes a second limiting ring, which is fixedly installed in the bottom opening of the heat insulation pipe. The bottom side of the second limiting ring is provided with a second sealing plate, and the bottom side of the second sealing plate is fixedly provided with a guide rod. The outer periphery of the guide rod is slidably fitted with a collar, and the collar is fixedly connected to the inner wall of the heat insulation pipe through a support rod.

[0015] Furthermore, the top sides of the first limiting ring and the second limiting ring are both inclined, and the top sides of the first sealing plate and the second sealing plate are both arc-shaped. The arc surfaces of the first sealing plate and the second sealing plate are in contact with the inner ring edge at the bottom of the first limiting ring and the inner ring edge at the bottom of the second limiting ring, respectively.

[0016] Furthermore, the inner wall of the second limiting ring is hollow, and a number of filter holes are equally spaced on the inner wall of the second limiting ring. The bottom end of the air intake pipe is fixedly inserted into the second limiting ring.

[0017] Furthermore, the feeding mechanism includes a rectangular tube with sealing components inside its two end openings to seal the gap between the carbon fiber pultruded product and the inner walls of the openings at both ends of the rectangular tube. Flared tubes are fixedly installed on the upper and lower sides of the outer shell at positions corresponding to the storage hole one, and the interiors of the two flared tubes are connected to the interior of the storage hole one. An air pump two is connected to the bottom end of the flared tube. The air inlet end of the air pump two and the interior of the top flared tube are connected to the interior of the rectangular tube through a guide component.

[0018] Furthermore, the sealing component includes several rotating shafts, which are rotatably mounted in the openings at both ends of the rectangular tube. A soft sleeve is fixedly sleeved on the outer periphery of the rotating shaft, and the outer wall of the soft sleeve is in contact with the inner wall of the rectangular tube and the outer periphery of the adjacent soft sleeve. The sleeve wall of the soft sleeve is hollow and filled with air.

[0019] Furthermore, the flow guide includes a diverter pipe, and two diverter pipes are fixedly installed through the middle of the upper and lower sides of the rectangular tube. The cross-sectional shape of the inner hole of the diverter pipe is trapezoidal, and the interior of the two diverter pipes are respectively connected to the air inlet end and the top flared pipe of the second air pump through conduits.

[0020] In summary, the present invention has the following beneficial technical effects:

[0021] 1. When this improved waste gas treatment device is in use, it continuously filters out VOCs from the waste gas through the adsorption of VOCs by several zeolites, and at the same time, it sequentially completes the thermal desorption treatment of VOCs on the zeolites to form a gas containing high concentration of VOCs. The harmless treatment of VOCs is then completed by time-sharing high-temperature incineration, which can greatly reduce the amount of zeolite required for the device and reduce the operating cost of the device.

[0022] 2. As described above, during the continuous waste gas treatment process of the device, the thermal desorption treatment of zeolite and the reuse of zeolite are completed simultaneously, avoiding the need for zeolite replacement and reducing the workload of the operator during device use. Attached Figure Description

[0023] Figure 1 This is a perspective view of the overall structure of the present invention;

[0024] Figure 2 This is a front view of the outer casing and the internal structure of the heat insulation tube of the present invention;

[0025] Figure 3 This is a perspective view of the material distribution tray of the present invention;

[0026] Figure 4 This is a perspective view of the internal structure of the outer shell of the present invention;

[0027] Figure 5This is a perspective view of the internal structure of the limiting ring and the sealing plate of the present invention;

[0028] Figure 6 This is a perspective view of the internal structure of the second limiting ring and the second sealing plate of the present invention;

[0029] Figure 7 This is a perspective view of the internal structure of the outer shell and the soft sleeve of the present invention;

[0030] Figure 8 This is a perspective view of the outer casing and the internal structure of the shunt tube of the present invention.

[0031] The reference numerals in the attached figures are as follows:

[0032] 1. Outer shell; 2. Distributor plate; 21. Turntable; 22. Storage hole one; 23. Storage hole two; 24. Storage hole three; 25. Sealing gasket; 26. Driver; 3. Connecting parts; 31. Air guide pipe; 32. Screen plate; 4. Sealing mechanism one; 41. Limiting ring one; 42. Sealing plate one; 43. Piston rod; 44. Piston cylinder; 5. Sealing mechanism two; 51. Limiting ring two; 52. Sealing plate two; 53. Guide rod; 5 4. Collar; 55. Filter hole; 6. Feeding mechanism; 61. Rectangular tube; 62. Sealing component; 621. Rotating shaft; 622. Soft sleeve; 63. Flared tube; 64. Flow guide; 641. Diverter tube; 642. Guide tube; 65. Air pump II; 7. Air pump I; 8. Air inlet pipe; 9. Electrically controlled four-way valve; 10. Gas heater; 11. Exhaust pipe; 12. Feed guide pipe I; 13. Feed guide pipe II; 14. Insulation pipe. Detailed Implementation

[0033] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Embodiment 1 of the present invention, a waste gas treatment device for the production of carbon fiber pultruded products is provided, comprising: a shell 1, which is provided with a material distribution plate 2, and a heat insulation pipe 14 is fixedly installed on the top side of the shell 1, and the interior of the heat insulation pipe 14 is connected to the interior of the shell 1 through a connector 3.

[0038] Air pump 7 is fixedly installed on the outer peripheral wall of the bottom of the heat insulation tube 14, and its air inlet end is connected to the inside of the heat insulation tube 14 through the air inlet pipe 8. Its exhaust end is connected to an electrically controlled four-way valve 9. The top opening of the electrically controlled four-way valve 9 is connected to a gas heater 10, and the gas heater 10 is fixedly connected to the outer wall of the heat insulation tube 14. The exhaust port of the gas heater 10 is connected to the inside of the heat insulation tube 14 through the exhaust pipe 11.

[0039] The sealing mechanism 4 and the sealing mechanism 5 are respectively located in the upper and lower openings of the heat insulation pipe 14 and are used to seal the two openings of the heat insulation pipe 14.

[0040] The feeding mechanism 6 is located on the outer periphery of the heat insulation pipe 14 and is used to draw the VOCs emitted after the carbon fiber is thermally fixed into the distribution plate 2.

[0041] In this embodiment, when using the improved waste gas treatment device, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the feeding mechanism 6 continuously extracts the gas surrounding the carbon fiber product after heat fixation and injects the gas into the distribution plate 2 (the distribution plate 2 is filled with several portions of zeolite, and the gas extracted by the feeding mechanism 6 is injected into the gap between a single portion of zeolite each time, and the zeolite is small granular zeolite). Then, after passing through the gap between the zeolite, the gas flows back to the outer periphery of the carbon fiber product to form a gas circulation. Thus, the airflow drives the VOCs emitted after the carbon fiber product is heat-fixed to fully dissolve with the zeolite, and the VOCs are trapped in the airflow by the adsorption of VOCs by the zeolite.

[0042] Please refer to Figure 2 , Figure 3 and Figure 4As shown, the distribution plate 2 rotates periodically, adjusting the position of each portion of zeolite within the outer shell 1. When the zeolite containing VOCs is moved to the position of the connector 3, the air pump 7 starts to continuously extract the gas at the bottom of the insulation tube 14 and discharges it to the outside of the insulation cylinder through one side opening of the electrically controlled four-way valve 9. At this time, a pressure difference is formed between the insulation tube 14 and the distribution plate 2. The outside gas flows continuously into the insulation cylinder after passing through the distribution plate 2, thereby moving the VOCs-containing zeolite into the insulation tube 14 through the airflow. Simultaneously, the sealing mechanism seals the bottom opening of the insulation tube 14, preventing the zeolite containing VOCs from being discharged. The zeolite containing VOCs is stably stored inside the heat insulation tube 14 (at this time, the gas blown on the zeolite is a low-temperature gas, which hardly causes the VOCs adsorbed by the zeolite to desorb from the zeolite). Then, the electrically controlled four-way valve 9 is activated, so that the gas discharged by the gas pump 7 is directly injected into the gas heater 10 (the gas heater 10 is a miniature tube heater, such as the OMGACSH-202300). Then, the gas flows out of the gas heater 10 and is reinjected into the top of the heat insulation tube 14 through the exhaust pipe 11. Due to the sealing mechanism 4, the gas is stored in the heat insulation tube 14. The sealing of the opening at the top of heat pipe 14 allows for gas circulation within the insulation pipe 14. During this circulation, the gas is gradually heated to 200-300 degrees Celsius, thus heating the zeolite containing VOCs to achieve thermal desorption of VOCs from the zeolite. Only a small amount of VOCs dissolve in the gas within the insulation pipe 14, resulting in a gas with a high concentration of VOCs. Finally, the electrically controlled four-way valve 9 is activated, and the gas pump 7 draws the gas containing the high concentration of VOCs and discharges it through the other opening of the electrically controlled four-way valve 9. The gas within the insulation pipe 14 contains a high concentration of VOCs. After the gas from Cs is discharged, the electrically controlled four-way valve 9 is activated, which connects the exhaust end of the air pump 7 with one side opening of the electrically controlled four-way valve 9. This allows the air pump 7 to continuously draw in external gas and discharge it through one side opening of the electrically controlled four-way valve 9. The zeolite is cooled by continuously blowing it with lower temperature gas. After the zeolite is cooled, the air pump stops running. At this time, due to the pressure of the zeolite on the sealing mechanism 2 5, the sealing mechanism 2 5 can automatically release the seal on the bottom opening of the heat insulation tube 14. The zeolite that has completed thermal desorption falls back into the distribution plate 2 for reuse.

[0043] In summary, the thermal desorption of VOCs from waste gas can be completed sequentially during the VOCs treatment process using zeolite, which can greatly reduce the amount of zeolite required for the equipment, reduce the operating cost of the equipment, and avoid the need for zeolite replacement, thereby reducing the workload of the operator during equipment use.

[0044] It should be noted that the overall operation of the device is automatically controlled by an external control host.

[0045] In a further preferred embodiment of the invention, such as Figure 2 , Figure 3 and Figure 4 As shown, the material distribution plate 2 includes a turntable 21, which is rotatably mounted inside the housing 1 via bearings. The turntable 21 is provided with storage holes 1 22, 23 and 3 24 at equal intervals. The heat insulation tube 14 is located above the storage hole 3 24 and communicates with the interior of the storage hole 3 24. The bottom side of the housing 1 is fixedly equipped with a driver 26, and the driving end of the driver 26 is inserted into the housing 1 and fixedly connected to the turntable 21.

[0046] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 4 As shown, during the use of the device, the turntable 21 is driven by the driver 26 to rotate at a corresponding angle within the housing 1 at regular intervals (the driver 26 consists of the housing 1, a servo motor, and a gear transmission structure, etc.), and two of the storage holes 1 22, 23 and 24 store zeolite to provide a transfer space for zeolite for thermal desorption and reuse.

[0047] In a further preferred embodiment of the invention, such as Figure 3 and Figure 4 As shown, sealing gaskets 25 are fixedly connected to both the upper and lower ends of the turntable 21, and the opposite sides of the two sealing gaskets 25 are in contact with the inner walls of the upper and lower ends of the outer casing 1, respectively.

[0048] In this embodiment, please refer to Figure 3 and Figure 4 As shown, during the rotation of the turntable 21 inside the outer casing 1, the gaps between the upper and lower sides of the turntable 21 and the inner wall of the outer casing 1 are sealed by the sealing gasket 25, so that the gas can be completely injected into the storage holes 22, 23, or 24 respectively during the injection of the gas into the storage holes 1, 23, or 24 respectively.

[0049] In a further preferred embodiment of the invention, such as Figure 1 As shown, the two side openings of the electrically controlled four-way valve 99 are respectively connected to a guide pipe 1212 and a guide pipe 2 1313, and both the guide pipe 1212 and the guide pipe 2 1313 are soft pipes.

[0050] In this embodiment, please refer to Figure 1 and Figure 2 When gas containing almost no VOCs is discharged from one side opening of the electronically controlled four-way valve 9, it is directly discharged into the feed pipe 12, and then the feed pipe 12 guides the gas to be discharged outside the factory area.

[0051] When gas containing high concentrations of VOCs is discharged from the other side opening of the electrically controlled four-way valve 9, it is directly discharged into the feed pipe 2 13. Subsequently, the feed pipe 2 13 guides the gas into the existing high-temperature incineration equipment for harmless treatment of the waste gas, thus avoiding the large-scale leakage of VOCs during storage and its impact on the health of the operators.

[0052] In a further preferred embodiment of the invention, such as Figure 2 As shown, the connector 3 includes an air guide pipe 31, whose two ends are fixedly connected to the top of the heat insulation pipe 14 and the top side of the outer shell 1, respectively. The interior of the air guide pipe 31 is connected to the interior of the heat insulation pipe 14 and the interior of the storage hole 23. A sieve plate 32 is fixedly installed on the bottom side of the outer shell 1, and the top side of the sieve plate 32 is coplanar with the bottom side of the bottom sealing end 25.

[0053] In this embodiment, please refer to Figure 2 As shown, when the air pump 7 draws gas from the bottom of the heat insulation tube 14, the electrically controlled four-way valve 9 is simultaneously activated, connecting the inside of the heat insulation tube 14 to the inside of storage holes 22, 23, or 34 via the air guide pipe 31. (The guide pipe 642 consists of a corrugated pipe and two flared connecting pipes, which are fixedly installed at the top of the heat insulation tube 14 and the top side of the outer casing 1 at the position corresponding to storage hole 23, respectively, with both ends of the corrugated pipe threaded into the top openings of the two flared connecting pipes.) At this time, the gas in storage holes 22, 23, or 34 flows into the heat insulation tube 14 through the air guide pipe 31 to replenish the gas. The gas lost from the heat insulation pipe 14 creates a pressure difference on both sides of the sieve plate 32 (the sieve plate 32 simultaneously filters dust from the air). External gas passes through the sieve holes of the sieve plate 32 and flows into the storage holes 1 22, 23, or 3 24 to replenish the gas lost from the storage holes 1 22, 23, or 3 24. This creates a continuous directional airflow in the storage holes 1 22, 23, or 3 24 and in the air guide pipe 31 (the airflow formation time is controlled by the electrically controlled four-way valve 9). The airflow flowing within the corresponding time carries the zeolite and pushes it into the heat insulation pipe 14.

[0054] When cooling zeolite, the cooling process can also be carried out by continuously absorbing gas with a lower ambient temperature, as described above.

[0055] Meanwhile, during the process of the gas pushing the zeolite into the heat insulation tube 14 or cooling the zeolite, the gas flow backflows the zeolite to blow off small particles of impurities such as dust attached to the zeolite, which are then discharged through the feed pipe 12 to complete the cleaning of the zeolite. No additional structure is required, which reduces the production cost of the device.

[0056] In a further preferred embodiment of the invention, such as Figure 2 and Figure 5As shown, the sealing mechanism 4 includes a limiting ring 41, which is fixedly installed in the top opening of the heat insulation pipe 14. A sealing plate 42 is provided on the bottom side of the limiting ring 41. A piston rod 43 is fixedly installed on the bottom side of the sealing plate 42. A piston cylinder 44 is slidably sleeved on the bottom end of the piston rod 43. The piston cylinder 44 is fixedly connected to 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 42.

[0057] In this embodiment, please refer to Figure 2 and Figure 5 As shown, when the air pump 7 draws in external gas, as the gas in the heat insulation tube 14 is lost, a pressure difference is generated on the upper and lower sides of the sealing plate 42. At this time, due to the push of the gas on the sealing plate 42, the sealing plate 42 moves down and separates from the limiting ring 41, automatically releasing the sealing state of the top opening of the heat insulation tube 14.

[0058] When the gas in the heat insulation tube 14 is circulated by the air pump 7, the negative pressure in the heat insulation tube 14 is released. At this time, the gas in the piston cylinder 44 pushes the piston rod 43 (the piston cylinder 44 is filled with gas, which makes the piston cylinder 44 a high-pressure chamber, so that the piston cylinder 44, piston rod 43 and gas form an elastic structure and continuously apply an upward thrust to the sealing plate 42). The sealing plate automatically moves up and fits with the limiting ring, and the top opening of the heat insulation tube 14 is sealed again. The device has a high degree of automation.

[0059] In a further preferred embodiment of the invention, such as Figure 2 and Figure 6 As shown, the sealing mechanism 2 5 includes a limiting ring 2 51, which is fixedly installed in the bottom opening of the heat insulation pipe 14. A sealing plate 2 52 is provided on the bottom side of the limiting ring 2 51. A guide rod 53 is fixedly installed on the bottom side of the sealing plate 2 52. A collar 54 is slidably sleeved on the outer periphery of the guide rod 53, and the collar 54 is fixedly connected to the inner wall of the heat insulation pipe 14 through a support rod.

[0060] In this embodiment, please refer to Figure 2 and Figure 6 As shown, when the air pump 7 draws gas from the bottom of the heat insulation tube 14, as the gas in the heat insulation tube 14 is lost, some of the gas in the storage hole 1 22, storage hole 23 or storage hole 3 24 flows upward and into the bottom opening of the heat insulation tube 14, thereby pushing the sealing plate 2 52 to stick tightly to the limiting ring 2 51, thereby automatically sealing the bottom opening of the heat insulation tube 14.

[0061] When the air pump 7 stops running, the negative pressure in the heat insulation tube 14 disappears as outside gas flows into it. At this time, due to the gravity of the sealing plate 52, the sealing plate automatically moves down and resets to release the sealing state of the bottom opening of the heat insulation tube 14.

[0062] During the up-and-down movement of the sealing plate 52, due to the mutual contact between the guide rod 53 and the inner wall of the collar 54, the sealing plate 52 moves along a linear trajectory to avoid positional deviation during the movement of the sealing plate 52, which would affect the use of the device.

[0063] In a further preferred embodiment of the invention, such as Figure 2 , Figure 5 and Figure 6 As shown, the top sides of the first limiting ring 41 and the second limiting ring 51 are both inclined, and the top sides of the first sealing plate 42 and the second sealing plate 52 are both arc-shaped. The arc surfaces of the first sealing plate 42 and 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.

[0064] In this embodiment, please refer to Figure 2 , Figure 5 and Figure 6 As shown, the inclined surfaces on the top sides of the limiting ring 41 and the limiting ring 51 allow zeolite particles falling onto the top sides of the limiting ring 41 and the limiting ring 51 to slide directly down the inclined surfaces, preventing a very small number of zeolite particles from being intercepted by the limiting ring 41 or the limiting ring 51 and affecting the use of the device.

[0065] In a further preferred embodiment of the invention, such as Figure 2 and Figure 6 As shown, the inner wall of the limiting ring 2 51 is hollow, and several filter holes 55 are equally spaced on the inner wall of the limiting ring 2 51. The bottom end of the air inlet pipe 8 is fixedly inserted into the limiting ring 2 51.

[0066] In this embodiment, please refer to Figure 2 and Figure 6 As shown, when the air pump 7 draws gas from the bottom of the heat insulation tube 14 through the air inlet pipe 8, it first draws gas from the limiting ring 51, and then draws gas from the inner hole of the limiting ring 51 through the filter hole 55. Since the amount of gas passing through a single filter hole 55 is limited, the gas at the bottom of the heat insulation tube 14 can be drawn simultaneously from multiple locations at the bottom of the zeolite particles, thus avoiding the gas passing through the heat insulation tube 14 always passing through the gaps in the zeolite part, which would affect the use of the device.

[0067] In a further preferred embodiment of the invention, such as Figure 1 , Figure 7 and Figure 8As shown, the feeding mechanism 6 includes a rectangular tube 61 with sealing parts 62 in the openings at both ends to seal the gap between the carbon fiber pultruded product and the inner wall of the openings at both ends of the rectangular tube 61. The upper and lower sides of the outer shell 1 are fixedly equipped with flared tubes 63 at the positions corresponding to the storage hole 22, and the interior of the two flared tubes 63 is connected to the interior of the storage hole 22. The bottom end of the bottom flared tube 63 is connected to the air pump 65. The air inlet of the air pump 65 and the interior of the top flared tube 63 are connected to the interior of the rectangular tube 61 through the guide 64.

[0068] In this embodiment, (when using the device, the rectangular tube 61 is supported in mid-air by a bracket, and the carbon fiber product that has been heated and cured passes through the inner hole of the rectangular tube 61, please refer to...) Figure 1 and Figure 7 As shown, due to the sealing component 62 sealing the gap between the carbon fiber product and the inner walls of the openings at both ends of the rectangular tube 61, the carbon fiber product in the middle of the rectangular tube 61 is located in a closed cavity. (Please refer to...) Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, when removing VOCs emitted after the carbon fiber product has been heat-cured, the second air pump 65 is started to continuously draw gas from storage holes 22, 23, or 24 through the flared tube 63 at the bottom. The gas is then guided into the rectangular tube 61 from the bottom side through the guide 64. Subsequently, the gas is discharged from the rectangular tube 61 from the bottom side through the guide 64 and guided into the flared tube 63 at the top, and then flows into storage hole 22. The gas inside the rectangular tube 61 is circulated with the gas inside the storage hole 22, storage hole 23, or storage hole 24. This allows the VOCs emitted from the carbon fiber products to be carried into the storage hole 22, storage hole 23, or storage hole 24 by the airflow. The VOCs then pass through the gaps between the zeolite particles, where they are adsorbed by the zeolite and filtered out of the airflow. This greatly reduces the emission of VOCs into the outside air.

[0069] The flared tube 63 is designed to increase the blowing area of ​​the gas and reduce the gas flow rate when the gas in the guide member 64 flows into the top flared tube 63.

[0070] In a further preferred embodiment of the invention, such as Figure 7 As shown, the sealing component 62 includes several rotating shafts 621, which are rotatably mounted in the openings at both ends of the rectangular tube 61. A soft sleeve 622 is fixedly sleeved on the outer periphery of the rotating shaft 621, and the outer wall of the soft sleeve 622 is in contact with the inner wall of the rectangular tube 61 and the outer periphery of the adjacent soft sleeve 622. The sleeve wall of the soft sleeve 622 is hollow and filled with air.

[0071] In this embodiment, please refer to Figure 7 As shown, when the carbon fiber product passes through the inner hole of the rectangular tube 61, the corresponding position of the soft sleeve 622 shrinks and deforms, thereby forming a gap of corresponding shape between the two soft sleeves 622 to allow the carbon fiber product to pass through.

[0072] As the carbon fiber product moves through the rectangular tube 61, the soft sleeve 622 rotates around the pivot 621. The corresponding position of the soft sleeve 622 undergoes corresponding expansion and contraction deformation as it rotates. This maintains the sealing of the gap between the carbon fiber product and the inner wall of the opening of the rectangular tube 61, while preventing the surface of the carbon fiber product from rubbing against external objects, thus avoiding wear on the surface of the carbon fiber product that could affect its quality.

[0073] In a further preferred embodiment of the invention, such as Figure 1 and Figure 8 As shown, the flow guide 64 includes a diversion pipe 641. Two diversion pipes 641 are fixedly installed in the middle of the upper and lower sides of the rectangular tube 61. The cross-sectional shape of the inner hole of the diversion pipe 641 is trapezoidal. The interior of the two diversion pipes 641 are connected to the air inlet end and the top flared pipe 63 of the air pump 65 respectively through the conduit 642.

[0074] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 8 As shown, the gas drawn by the air pump 65 is injected into the split pipe 641 through the conduit 642. Due to the limitation of the gas flow rate at the opening of the split pipe 641, the gas injected into the split pipe 641 will diffuse synchronously within the split pipe 641. Then, a linear airflow is ejected from the opening of the split pipe 641, increasing the blowing area of ​​the exhaust airflow at the split pipe 641 on the carbon fiber product.

[0075] Working principle: When this improved waste gas treatment device is in use, the gas in the rectangular tube 61 and the gas in the storage holes 22, 23 or 24 are circulated by the second air pump 65. This causes the VOCs emitted after the carbon fiber products are heated and cured to come into contact with the zeolite. The VOCs are adsorbed by the zeolite and stripped from the airflow. Then, the rotation of the turntable 21 located in the outer shell 1, together with the cooperation of the air pump and the gas heater 10, completes the thermal desorption of the VOCs attached to the zeolite, forming a gas containing a high concentration of VOCs. This gas is then discharged through the heat insulation pipe 14 and the VOCs are rendered harmless through high-temperature incineration. After the thermal desorption treatment, the zeolite is cooled and then falls back into the storage holes 22, 23 or 24 for reuse.

[0076] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0077] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A waste gas treatment device for the production of carbon fiber pultruded products, characterized in that, include: The outer shell (1) has a material distribution plate (2) inside, and a heat insulation pipe (14) is fixedly installed on its top side. The interior of the heat insulation pipe (14) is connected to the interior of the outer shell (1) through a connector (3). Air pump 1 (7) is fixedly installed on the outer peripheral wall of the bottom of the heat insulation pipe (14), and its air inlet end is connected to the inside of the heat insulation pipe (14) through the air inlet pipe (8). Its exhaust end is connected to an electrically controlled four-way valve (9). The top opening of the electrically controlled four-way valve (9) is connected to a gas heater (10), and the gas heater (10) is fixedly connected to the outer wall of the heat insulation pipe (14). The exhaust port of the gas heater (10) is connected to the inside of the heat insulation pipe (14) through the exhaust pipe (11). Sealing mechanism 1 (4) and sealing mechanism 2 (5) are respectively installed in the upper and lower openings of the heat insulation pipe (14) and are used to seal the two openings of the heat insulation pipe (14). The feeding mechanism (6) is located on the outer periphery of the heat insulation pipe (14) and is used to draw the VOCs emitted after the carbon fiber is thermally fixed into the distribution plate (2). The material distribution plate (2) includes a turntable (21), which is rotatably mounted inside the outer shell (1) via a bearing. The turntable (21) is provided with storage holes 1 (22), 2 (23) and 3 (24) at equal intervals. The heat insulation pipe (14) is located above the storage hole 3 (24) and communicates with the interior of the storage hole 3 (24). The bottom side of the outer shell (1) is fixedly equipped with a driver (26), and the driving end of the driver (26) is inserted into the outer shell (1) and fixedly connected to the turntable (21). Both the upper and lower ends of the turntable (21) are fixedly connected with sealing gaskets (25), and the opposite sides of the two sealing gaskets (25) are in contact with the inner walls of the upper and lower ends of the outer shell (1), respectively. The connector (3) includes an air guide pipe (31), whose two ends are fixedly connected to the top of the heat insulation pipe (14) and the top side of the outer shell (1) respectively. The interior of the air guide pipe (31) is connected to the interior of the heat insulation pipe (14) and the interior of the storage hole (23). A sieve plate (32) is fixedly installed on the bottom side of the outer shell (1), and the top side of the sieve plate (32) is coplanar with the bottom side of the bottom sealing gasket (25). The sealing mechanism 1 (4) includes a limiting ring 1 (41), which is fixedly installed in the top opening of the heat insulation pipe (14). The bottom side of the limiting ring 1 (41) is provided with a sealing plate 1 (42). The bottom side of the sealing plate 1 (42) is fixedly installed with a piston rod (43). The bottom end of the piston rod (43) is slidably sleeved with a piston cylinder (44), and the piston cylinder (44) is fixedly connected to 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 1 (42). The second sealing mechanism (5) includes a second limiting ring (51), which is fixedly installed in the bottom opening of the heat insulation pipe (14). The second limiting ring (51) has a second sealing plate (52) on its bottom side. The second sealing plate (52) has a guide rod (53) fixedly installed on its bottom side. The guide rod (53) has a collar (54) slidably sleeved on its outer periphery. The collar (54) is fixedly connected to the inner wall of the heat insulation pipe (14) through a support rod.

2. The waste gas treatment device in the production of carbon fiber pultruded products according to claim 1, characterized in that, The two side openings of the electrically controlled four-way valve (9) are respectively connected to a guide pipe one (12) and a guide pipe two (13), and both the guide pipe one (12) and the guide pipe two (13) are soft pipes.

3. The waste gas treatment device in the production of carbon fiber pultruded products according to claim 2, characterized in that, The top sides of the first limiting ring (41) and the second limiting ring (51) are both inclined, the top sides of the first sealing plate (42) and the second sealing plate (52) are both arc-shaped, and the arc surfaces of the first sealing plate (42) and the second sealing plate (52) respectively contact 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). The inner wall of the second limiting ring (51) is hollow, and several filter holes (55) are equally spaced on the inner wall of the second limiting ring (51). The bottom end of the air inlet pipe (8) is fixedly inserted into the second limiting ring (51).

4. The waste gas treatment device in the production of carbon fiber pultruded products according to claim 3, characterized in that, The feeding mechanism (6) includes a rectangular tube (61) with sealing parts (62) in the openings at both ends to seal the gap between the carbon fiber pultruded product and the inner wall of the openings at both ends of the rectangular tube (61). The upper and lower sides of the outer shell (1) are fixedly equipped with flared tubes (63) at the positions corresponding to the storage hole one (22), and the interiors of the two flared tubes (63) are connected to the interior of the storage hole one (22). The bottom end of the flared tube (63) is connected to the air pump two (65). The air inlet end of the air pump two (65) and the interior of the top flared tube (63) are connected to the interior of the rectangular tube (61) through the guide part (64).

5. The waste gas treatment device in the production of carbon fiber pultruded products according to claim 4, characterized in that, The sealing component (62) includes several rotating shafts (621), which are rotatably mounted in the openings at both ends of the rectangular tube (61). A soft sleeve (622) is fixedly sleeved on the outer periphery of the rotating shaft (621), and the outer wall of the soft sleeve (622) is in contact with the inner wall of the rectangular tube (61) and the outer periphery of the adjacent soft sleeve (622). The sleeve wall of the soft sleeve (622) is hollow and filled with air.

6. The waste gas treatment device in the production of carbon fiber pultruded products according to claim 5, characterized in that, The flow guide (64) includes a diverter pipe (641). Two diverter pipes (641) are fixedly installed in the middle of the upper and lower sides of the rectangular tube (61). The cross-sectional shape of the inner hole of the diverter pipe (641) is trapezoidal. The interior of the two diverter pipes (641) is connected to the air inlet end of the second air pump (65) and the interior of the top flared pipe (63) through the conduit (642).

Images