A continuous deposition furnace for producing carbon molecular sieve

Abstract

This invention relates to the field of deposition furnace technology and discloses a continuous deposition furnace for producing carbon molecular sieves. The furnace includes a continuous deposition furnace body with an end cover vertically slidably mounted on its bottom. A support plate is mounted on the end cover and is used to support the workpiece. This invention achieves nozzle switching through the driving action of a drive assembly. During nozzle switching, the regulating pipe synchronously extends and retracts under the guidance of the guide groove. In the horizontal state, it retracts to adapt to the narrow space inside the furnace; in the vertical state, it extends to adapt to the larger volume space inside the furnace. The swinging of the regulating pipe causes the regulating block and the extrusion plate to slide relative to each other, achieving synchronous and precise adjustment of the air jet volume and nozzle extension / retraction state: the air jet volume decreases in the horizontal state and increases in the vertical state, ensuring that the raw material gas covers all parts of the workpiece with a suitable gas volume and uniform spray angle, ensuring full contact between the raw material gas and the workpiece surface, and preventing local gas accumulation or insufficient spraying.

Description

Technical Field

[0001] This invention belongs to the field of deposition furnace technology, and more specifically, relates to a continuous deposition furnace for producing carbon molecular sieves. Background Technology

[0002] Currently, continuous deposition processing is the core and key step in the production of carbon molecular sieves. This step directly determines the core performance indicators of carbon molecular sieves, such as pore size structure, adsorption performance, and mechanical strength. The processing flow has the core requirements of continuity, high precision, and high stability. Moreover, the entire processing process must be continuous and stable without interruption to meet the needs of mass production of carbon molecular sieves.

[0003] However, in the existing technology, this continuous deposition process has been found that, since the gas inlet for conveying raw material gas is generally installed vertically upwards, the raw material gas, after being ejected from the inlet, will mainly concentrate in the vertically upper area of ​​the workpiece, resulting in a high gas concentration in this area. Meanwhile, the gas cannot effectively cover the lateral and horizontal areas of the workpiece, as well as the corners around the workpiece, resulting in a low gas concentration in these areas. Consequently, the deposition on the workpiece surface is uneven: the carbon molecular sieve deposition layer in the vertically upper area is thicker, and there may even be accumulation and detachment, while the deposition layer in the lateral, horizontal, and corner areas is thinner, and some areas may even have no deposition. This seriously affects the thickness uniformity and structural density of the carbon molecular sieve deposition layer.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] A continuous deposition furnace for producing carbon molecular sieves includes a continuous deposition furnace body, an end cover vertically slidably mounted on the bottom of the continuous deposition furnace body, a support plate mounted on the end cover, and the support plate is used to support the workpiece.

[0007] The end cap is equipped with a diversion pipe, and four connecting pipes are installed on the diversion pipe. Each of the four connecting pipes is rotatably equipped with a conveying pipe, and an adjusting pipe containing a nozzle is inserted into the end of the conveying pipe. The end cap is equipped with a drive assembly, which is used to drive the conveying pipe and the adjusting pipe to swing, thereby controlling the nozzle to switch in the lateral and vertical directions, and the movement trajectories of adjacent conveying pipes are opposite.

[0008] The connecting pipe has a guide groove on its side wall, and the guide groove is slidably connected to the regulating pipe. An adjusting block is inserted into the inside of the conveying pipe, and the adjusting block is conical. The adjusting block is adapted to the air inlet on the conveying pipe. The adjusting block and the extrusion plate on the connecting pipe are in close contact. When the regulating pipe is rotated from a vertical state to a horizontal state, the distance between the adjusting block and the air inlet decreases, and the corresponding air output of the regulating pipe decreases synchronously. The regulating pipe is guided to retract on the conveying pipe through the guide groove, so that the gas is sprayed evenly.

[0009] In a preferred embodiment of the present invention, a frame is installed on the continuous deposition furnace body, the frame is surrounded by a fence, and a ladder is installed at one end of the frame, which facilitates the operator to inspect and maintain the continuous deposition furnace body.

[0010] In a preferred embodiment of the present invention, an exhaust pipe is installed on the top of the continuous deposition furnace body, a reversing valve is installed at the output end of the exhaust pipe, a vacuum tube is installed at one output end of the reversing valve, and an exhaust gas pipe is installed at the other output end of the reversing valve. The vacuum tube is connected to a vacuum pumping system, and the exhaust gas pipe is connected to an exhaust gas treatment system. The reversing valve is used to switch the working state.

[0011] In a preferred embodiment of the present invention, an electric conveying system is installed at the bottom of the continuous deposition furnace body, a lifting electric push rod is installed at the output end of the electric conveying system, a connecting frame is installed at the output end of the lifting electric push rod, the end of the connecting frame is connected to the end cover, a vertical pole is installed on the end cover, and a bearing plate is installed on the top of the vertical pole.

[0012] In a preferred embodiment of the present invention, an air inlet pipe is installed at the bottom of the diversion pipe, and a connecting flange is installed at the end of the air inlet pipe. A notch is provided on the connecting pipe, and a sealing plate is installed on the delivery pipe. The sealing plate is slidably disposed at the notch.

[0013] In a preferred embodiment of the present invention, a guide rod is installed on the side wall of the regulating tube. The guide rod is in a vertical state, and a protrusion is installed at the end of the guide rod. The protrusion is slidably disposed on the guide groove, and the guide groove is arc-shaped.

[0014] In a preferred embodiment of the present invention, a connecting rod is installed through the adjusting block, a ball bearing is installed at the bottom of the connecting rod, the bottom of the ball bearing is in contact with the extrusion plate, a fixing frame is installed on the extrusion plate, and the fixing frame is L-shaped, with the end of the fixing frame connected to the side wall of the connecting pipe.

[0015] In a preferred embodiment of the present invention, a limiting seat is sleeved on the outer wall of the connecting rod, the end of the limiting seat is installed on the conveying pipe, a limiting plate is installed on the outer wall of the connecting rod, and a limiting spring is sleeved on the connecting rod. One end of the limiting spring is engaged with the limiting plate, and the other end of the limiting spring is engaged with the limiting seat. The limiting spring is used to drive the ball to always be in contact with the extrusion plate.

[0016] In a preferred embodiment of the present invention, the driving assembly includes a pressure arm, a positioning shaft is mounted on the rotation center of the pressure arm, the positioning shaft movably passes through the connecting pipe, and the end of the positioning shaft is connected to the rotation center of the conveying pipe. A strip groove is formed on the pressure arm, a slide rod is slidably mounted on the strip groove, a top rod is mounted on the slide rod, and an arc block is mounted at the end of the top rod. A positioning frame is movably mounted through the side wall of the top rod, and the bottom of the positioning frame is mounted on the end cover. A positioning plate is mounted on the top rod, and a positioning spring is sleeved on the outer side wall of the top rod. One end of the positioning spring is engaged with the positioning plate, and the other end of the positioning spring is engaged with the positioning frame.

[0017] In a preferred embodiment of the present invention, the drive assembly further includes a turntable, a synchronous shaft is mounted at the rotation center of the turntable, the synchronous shaft movably passes through the end cover, a drive motor is mounted at the bottom of the end cover, the output end of the drive motor is connected to the end of the synchronous shaft, a plurality of top blocks are mounted on the turntable, and the positioning spring is used to drive the arc block to fit against the top block.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention achieves flexible and stable switching between horizontal and vertical directions of the nozzle through the driving action of the drive component. Adjacent conveying pipes move in opposite trajectories, ensuring comprehensive coverage of the workpiece's sides, vertical direction, and surrounding areas without any blind spots. Simultaneously, during nozzle switching, the adjusting pipe extends and retracts synchronously under the guidance of the guide groove. In the horizontal state, it retracts to fit the narrow space within the furnace, while in the vertical state, it extends to fit the larger volume space. Furthermore, the swinging of the adjusting pipe causes the adjusting block and the extrusion plate to slide relative to each other, achieving synchronous and precise adjustment of the airflow volume and nozzle extension / retraction state: the airflow volume decreases in the horizontal state and increases in the vertical state, ensuring that the raw material gas covers all parts of the workpiece with an appropriate volume and uniform spray angle, ensuring full contact between the raw material gas and the workpiece surface without localized gas accumulation or insufficient spraying.

[0020] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

[0022] Figure 1A three-dimensional diagram of a continuous deposition furnace for producing carbon molecular sieves;

[0023] Figure 2 A front view of a continuous deposition furnace used for producing carbon molecular sieves;

[0024] Figure 3 A bottom view of a continuous deposition furnace used for producing carbon molecular sieves;

[0025] Figure 4 A partial view of a continuous deposition furnace for producing carbon molecular sieves Figure 1 ;

[0026] Figure 5 A continuous deposition furnace for producing carbon molecular sieves Figure 4 Sectional view;

[0027] Figure 6 A continuous deposition furnace for producing carbon molecular sieves Figure 5 Enlarged view of point A in the middle;

[0028] Figure 7 A partial view of a continuous deposition furnace for producing carbon molecular sieves Figure 2 ;

[0029] Figure 8 A cross-sectional view of the connecting pipe of a continuous deposition furnace for producing carbon molecular sieves;

[0030] Figure 9 A continuous deposition furnace for producing carbon molecular sieves Figure 8 Larger image at point B in the middle.

[0031] In the picture:

[0032] 1. Continuous deposition furnace body; 11. Frame; 12. Exhaust pipe; 121. Reversing valve; 122. Vacuum tube; 123. Waste gas pipe; 13. Electric conveying system; 131. Lifting electric push rod; 132. Connecting frame; 133. End cover; 134. Bearing plate; 135. Vertical pole;

[0033] 2. Diverter pipe; 21. Inlet pipe; 22. Connecting pipe; 23. Delivery pipe; 231. Adjusting pipe; 232. Guide rod; 233. Protrusion; 234. Guide groove; 235. Sealing plate; 24. Adjusting block; 241. Inlet; 242. Connecting rod; 243. Limit seat; 244. Limit plate; 245. Limit spring; 246. Ball bearing; 247. Extrusion plate; 248. Fixing bracket;

[0034] 3. Turntable; 31. Synchronous shaft; 311. Drive motor; 32. Top block; 33. Pressure arm; 331. Positioning shaft; 332. Strip groove; 333. Slide rod; 334. Top rod; 335. Arc block; 336. Positioning plate; 337. Positioning spring; 338. Positioning frame. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0036] Example 1:

[0037] like Figures 1 to 9 As shown, a continuous deposition furnace for producing carbon molecular sieves includes a continuous deposition furnace body 1. An end cover 133 is vertically slidably installed at the bottom of the continuous deposition furnace body 1. A support plate 134 is installed on the end cover 133 and is used to support the workpiece. A diversion pipe 2 is installed on the end cover 133. Four connecting pipes 22 are installed on the diversion pipe 2, and a conveying pipe 23 is rotatably installed on each of the four connecting pipes 22. An adjusting pipe 231 containing a nozzle is inserted into the end of the conveying pipe 23. A driving assembly is installed on the end cover 133. The driving assembly is used to drive the conveying pipe 23 and the adjusting pipe 231 to swing, thereby controlling the nozzle to switch in the lateral and vertical directions. The movement trajectories of adjacent conveying pipes 23 are opposite.

[0038] A guide groove 234 is provided on the side wall of the connecting pipe 22, and the guide groove 234 is slidably connected to the regulating pipe 231. An adjusting block 24 is inserted into the conveying pipe 23, and the adjusting block 24 is conical. The adjusting block 24 is adapted to the air inlet 241 on the conveying pipe 23. The adjusting block 24 and the extrusion plate 247 on the connecting pipe 22 are in close contact. When the regulating pipe 231 rotates from a vertical state to a horizontal state, the distance between the adjusting block 24 and the air inlet 241 decreases, and the corresponding air output of the regulating pipe 231 decreases synchronously. The guiding groove 234 guides the regulating pipe 231 to retract on the conveying pipe 23, so that the gas spray is uniform. The guide groove 234 can realize the precise guiding extension and retraction of the regulating pipe 231. The conical adjusting block 24 and the extrusion plate 247 adapted to the air inlet 241 can realize the synchronous adjustment of the air jet volume and the extension and retraction state of the regulating pipe 231, effectively avoiding uneven gas spraying, ensuring that the raw material gas acts uniformly on the workpiece surface, and improving the deposition effect.

[0039] like Figures 1 to 9As shown in the specific embodiment, a frame 11 is installed on the continuous deposition furnace body 1. The frame 11 is surrounded by barriers, and a ladder is installed at one end of the frame. The ladder facilitates maintenance by operators on the continuous deposition furnace body 1. The frame 11 provides stable support for the continuous deposition furnace body 1, the barriers around the frame 11 effectively protect the equipment and prevent accidental injury to operators, and the ladder facilitates maintenance by operators, reducing maintenance difficulty and ensuring long-term stable operation of the equipment.

[0040] like Figures 1 to 9 As shown, furthermore, an exhaust pipe 12 is installed on the top of the continuous deposition furnace body 1. A reversing valve 121 is installed at the output end of the exhaust pipe 12. A vacuum pipe 122 is installed at one output end of the reversing valve 121, and an exhaust gas pipe 123 is installed at the other output end of the reversing valve 121. The vacuum pipe 122 is connected to the vacuum system, and the exhaust gas pipe 123 is connected to the exhaust gas treatment system. The reversing valve 121 is used to switch the working state. The exhaust pipe 12 can discharge the gas in the furnace in a timely manner, and the reversing valve 121 can flexibly switch the connection state between the vacuum pipe 122 and the exhaust gas pipe 123. It can both use the vacuum pipe 122 in conjunction with the vacuum system to achieve vacuuming in the furnace, providing a suitable environment for deposition, and use the exhaust gas pipe 123 in conjunction with the exhaust gas treatment system to treat the exhaust gas, meeting environmental protection requirements and improving the practicality of the equipment.

[0041] like Figures 1 to 9 As shown, furthermore, an electric conveying system 13 is installed at the bottom of the continuous deposition furnace body 1. A lifting electric push rod 131 is installed on the output end of the electric conveying system 13, and a connecting frame 132 is installed on the output end of the lifting electric push rod 131. The end of the connecting frame 132 is connected to the end cover 133. A vertical rod 135 is installed on the end cover 133, and a bearing plate 134 is installed on the top of the vertical rod 135. The electric conveying system 13 can realize continuous conveying of workpieces, improving processing efficiency. The lifting electric push rod 131 can drive the end cover 133 to rise and fall stably through the connecting frame 132, ensuring that the end cover 133 is sealed and fitted with the continuous deposition furnace body 1. The vertical rod 135 can stably support the bearing plate 134, ensuring the stability of the workpiece position during the deposition process and avoiding displacement that affects the deposition effect.

[0042] Example 2:

[0043] The difference between the above embodiments and this embodiment is that: Figures 1 to 9As shown, an inlet pipe 21 is installed at the bottom of the diversion pipe 2, and a connecting flange is installed at the end of the inlet pipe 21. A notch is opened on the connecting pipe 22, and a sealing plate 235 is installed on the conveying pipe 23. The sealing plate 235 is slidably disposed at the notch. The connecting flange at the end of the inlet pipe 21 facilitates a stable connection with an external gas source, ensuring a stable delivery of raw material gas. The notch on the connecting pipe 22 and the sealing plate 235 on the conveying pipe 23 slide together, which can effectively improve the sealing performance of the gas delivery, avoid raw material gas leakage, reduce raw material waste, and ensure a stable deposition environment inside the furnace.

[0044] like Figures 1 to 9 As shown in the specific embodiment, a guide rod 232 is installed on the side wall of the regulating pipe 231. The guide rod 232 is in a vertical state, and a protrusion 233 is installed at the end of the guide rod 232. The protrusion 233 is slidably disposed on the guide groove 234, which is arc-shaped. The protrusion 233 on the guide rod 232 and the arc-shaped guide groove 234 slide in cooperation, which can realize the smooth swinging and extension of the regulating pipe 231, ensure that the regulating pipe 231 does not deviate during the movement, improve the accuracy of nozzle angle and extension adjustment, and further ensure the uniformity of gas spraying.

[0045] like Figures 1 to 9 As shown, a connecting rod 242 is further installed through the adjusting block 24. A ball bearing 246 is installed at the bottom of the connecting rod 242, and the bottom of the ball bearing 246 contacts the extrusion plate 247. A fixing bracket 248 is installed on the extrusion plate 247, and the fixing bracket 248 is L-shaped. The end of the fixing bracket 248 is connected to the side wall of the connecting pipe 22. The connecting rod 242 can drive the adjusting block 24 to move stably, the ball bearing 246 can reduce the friction between the adjusting block 24 and the extrusion plate 247, making the movement of the adjusting block 24 smoother, and the L-shaped fixing bracket 248 can stably fix the extrusion plate 247 on the connecting pipe 22, ensuring the stability of the position of the extrusion plate 247, ensuring the stable fit between the adjusting block 24 and the extrusion plate 247, and improving the accuracy of jet volume adjustment.

[0046] Example 3:

[0047] The difference between the above embodiments and this embodiment is that: Figures 1 to 9As shown, a limiting seat 243 is sleeved on the outer wall of the connecting rod 242. The end of the limiting seat 243 is installed on the conveying pipe 23. A limiting plate 244 is installed on the outer wall of the connecting rod 242. A limiting spring 245 is sleeved on the connecting rod 242. One end of the limiting spring 245 is engaged with the limiting plate 244, and the other end is engaged with the limiting seat 243. The limiting spring 245 is used to drive the ball 246 to always be in contact with the extrusion plate 247. The limiting seat 243 can limit and guide the connecting rod 242 to prevent the connecting rod 242 from deviating from its movement. The limiting spring 245 can always push the connecting rod 242 downward through the limiting plate 244, ensuring that the ball 246 is in close contact with the extrusion plate 247, ensuring that the adjusting block 24 is adjusted synchronously with the swing of the adjusting pipe 231, and further improving the stability and accuracy of the jet volume adjustment.

[0048] like Figures 1 to 9 As shown, in a specific embodiment, the drive assembly includes a pressure arm 33. A positioning shaft 331 is mounted on the rotation center of the pressure arm 33. The positioning shaft 331 is movably connected to the connecting pipe 22, and the end of the positioning shaft 331 is connected to the rotation center of the conveying pipe 23. A strip groove 332 is provided on the pressure arm 33. A slide rod 333 is slidably mounted on the strip groove 332. A top rod 334 is mounted on the slide rod 333. An arc block 335 is mounted at the end of the top rod 334. A positioning frame 338 is movably mounted through the side wall of the top rod 334. The bottom of the positioning frame 338 is mounted on the end cover 133. A positioning plate 336 is mounted on the top rod 334. A positioning spring 337 is sleeved on the outer side wall of the top rod 334. One end of the positioning spring 337 is engaged with the positioning plate 336, and the other end of the positioning spring 337 is engaged with the positioning frame 338. The positioning shaft 331 ensures the stable rotation of the pressure arm 33. The cooperation between the strip groove 332 and the slide rod 333 enables the flexible transmission between the pressure arm 33 and the top rod 334. The positioning frame 338 can limit and guide the top rod 334. The positioning spring 337 can push the top rod 334 through the positioning plate 336, ensuring that the arc block 335 is always in contact with the top block 32, ensuring the stable transmission of the drive component, and thus realizing the smooth swing of the conveying pipe 23 and the regulating pipe 231.

[0049] like Figures 1 to 9As shown, the drive assembly further includes a turntable 3. A synchronous shaft 31 is mounted at the center of rotation of the turntable 3. The synchronous shaft 31 movably passes through the end cover 133. A drive motor 311 is mounted at the bottom of the end cover 133. The output end of the drive motor 311 is connected to the end of the synchronous shaft 31. Several pairs of top blocks 32 are mounted on the turntable 3, and a positioning spring 337 is used to drive the arc block 335 to engage with the top blocks 32. The drive motor 311 can drive the turntable 3 to rotate stably via the synchronous shaft 31. The top blocks 32 on the turntable 3 can push the top rod 334 to move. With the elastic action of the positioning spring 337, continuous and stable transmission of the drive assembly can be achieved, providing stable power for the swing of the delivery pipe 23 and the regulating pipe 231, ensuring accurate and smooth switching of the nozzle angle.

[0050] The implementation principle of a continuous deposition furnace for producing carbon molecular sieves according to the present invention is as follows:

[0051] First, the electric conveying system 13 transports the support plate 134, which carries the carbon molecular sieve workpiece to be processed, to the bottom of the continuous deposition furnace body 1. The support plate 134 is installed on the end cover 133 by the upright 135. Then, the lifting electric push rod 131 is activated. The lifting electric push rod 131 drives the end cover 133 to slide vertically upward through the connecting frame 132 until the end cover 133 is sealed and fitted with the bottom of the continuous deposition furnace body 1, thus completing the workpiece feeding and sealing operation. This provides a sealed and clean basic environment for the subsequent carbon molecular sieve deposition, avoiding gas leakage or impurity interference during the deposition process.

[0052] After the feeding and sealing are completed, the furnace pretreatment stage begins. The reversing valve 121 is switched to the vacuum tube 122 connection state, and the vacuum system is used to evacuate the interior of the continuous deposition furnace 1 until the preset vacuum level is reached, providing a suitable environment for carbon molecular sieve deposition. After pretreatment, the gas delivery and nozzle adjustment process is initiated. An external gas source (containing the raw material gas required for carbon molecular sieve deposition, such as a carbon-containing gas source) is connected to the inlet pipe 21 through the connecting flange at the end of the inlet pipe 21. The raw material gas enters the distribution pipe 2 through the inlet pipe 21, and the distribution pipe 2 distributes the gas... The gas is diverted to four connecting pipes 22. At the same time, according to the processing space requirements inside the continuous deposition furnace body 1, the drive motor 311 at the bottom of the end cover 133 is started. With the help of the drive assembly, the swing adjustment of the conveying pipe 23 and the regulating pipe 231 is completed, realizing the switching of the nozzle in the lateral (horizontal state) and vertical directions. The movement trajectories of adjacent conveying pipes 23 are opposite, ensuring that the nozzle can spray gas evenly and comprehensively on the workpiece on the support plate 134, so that the raw material gas can fully contact the workpiece surface, ensuring the deposition effect of carbon molecular sieve and creating conditions for the full occurrence of deposition reaction.

[0053] When the drive assembly is running, the output end of the drive motor 311 drives the synchronous shaft 31 to rotate, and the synchronous shaft 31 drives the turntable 3 to rotate synchronously. Several pairs of top blocks 32 on the turntable 3 rotate together with the turntable 3. Under the elastic action of the positioning spring 337, the arc block 335 on the top rod 334 is always in contact with the top block 32. When the top block 32 rotates to different positions, it will push the top rod 334 to slide horizontally along the positioning frame 338. The top rod 334 drives the slide rod 333 to slide in the strip groove 332 of the pressure arm 33, thereby driving the pressure arm 33 to rotate around the positioning shaft 331. The positioning shaft 331 is connected to the rotation center of the delivery pipe 23, thereby realizing the stable swing switching of the delivery pipe 23 and the regulating pipe 231, ensuring the uniformity of the spray from the nozzle, and providing support for uniform deposition.

[0054] Specifically: When the nozzle is switched to the horizontal state, the processing width inside the continuous deposition furnace body 1 is relatively narrow. The regulating pipe 231 will retract on the conveying pipe 23 under the guidance of the guide groove 234. At the same time, during the process of the regulating pipe 231 rotating from the vertical state to the horizontal state, it will cause the regulating block 24 and the extrusion plate 247 on the connecting pipe 22 to slide relative to each other. This will reduce the distance between the regulating block 24 and the air inlet 241 on the conveying pipe 23, thereby reducing the corresponding air output of the regulating pipe 231. This avoids uneven gas spraying caused by excessive air jet and excessive nozzle extension, and adapts to the narrow processing space requirements in the horizontal state. When the nozzle is switched to the vertical state, the processing volume inside the continuous deposition furnace body 1 is relatively larger. At this time, the regulating pipe 231 will extend from the conveying pipe 23 under the guidance of the guide groove 234. At the same time, the distance between the regulating block 24 and the air inlet 241 will increase, and the air jet will increase accordingly. This can fully cover the larger processing space in the vertical state and ensure that all parts of the workpiece can be uniformly deposited with gas.

[0055] During gas spraying, the notch on the connecting pipe 22 slides into the sealing plate 235 on the conveying pipe 23, effectively ensuring the airtightness of the gas delivery, preventing gas leakage from affecting the deposition effect, and preventing waste of raw material gas and uneven deposition layer thickness. The connecting rod 242 on the adjusting block 24 slides stably under the limiting action of the limiting seat 243. The limiting spring 245 pushes the connecting rod 242 downward through the limiting plate 244, so that the ball 246 at the bottom of the connecting rod 242 is always in contact with the extrusion plate 247, ensuring that the adjusting block 24 is adjusted synchronously with the swing of the adjusting pipe 231, ensuring the accuracy of the jet volume adjustment, further ensuring the uniformity of deposition, and providing a guarantee for the stable progress of the carbon molecular sieve deposition reaction. After the raw material gas comes into full contact with the workpiece surface, under the preset temperature and pressure conditions inside the continuous deposition furnace body 1, the carbon components in the raw material gas are gradually adsorbed, attached and penetrated into the workpiece surface and surface pores. After a series of physicochemical reactions, a carbon molecular sieve deposition layer with a specific pore structure and adsorption performance is gradually formed.

[0056] During the processing, the exhaust pipe 12 at the top of the continuous deposition furnace body 1 is used to discharge the internal waste gas or excess gas. The working state is switched by the reversing valve 121. When the furnace needs to be replenished with gas or the vacuuming is completed, the reversing valve 121 is switched to the state of connection with the waste gas pipe 123. The waste gas generated by the deposition reaction in the furnace is transported to the waste gas treatment system through the waste gas pipe 123. After treatment, it is discharged after meeting the standards, which meets the environmental protection requirements. At the same time, it avoids the accumulation of waste gas in the furnace, which affects the continuity and stability of the deposition reaction, and prevents impurities in the waste gas from contaminating the deposition layer.

[0057] After the carbon molecular sieve deposition process is completed, the gas supply is stopped, the drive motor 311 is shut down and the drive components are stopped, the external gas source is closed, and the waste gas pipe 123 is connected through the reversing valve 121 to discharge the remaining gas in the furnace. After the pressure in the furnace returns to normal pressure and the temperature drops to a safe range, the lifting electric push rod 131 is started to drive the end cover 133 to slide vertically downward, so that the bearing plate 134 descends with the end cover 133 to the initial position. Then, the bearing plate 134 carrying the processed workpiece is transported to the designated position through the electric conveying system 13 to complete the workpiece discharge.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A continuous deposition furnace for producing carbon molecular sieves, comprising a continuous deposition furnace body (1), characterized in that: The bottom of the continuous deposition furnace body (1) is vertically slidably fitted with an end cover (133), and a bearing plate (134) is installed on the end cover (133), and the bearing plate (134) is used to support the workpiece; A diversion pipe (2) is installed on the end cap (133), and four connecting pipes (22) are installed on the diversion pipe (2). A conveying pipe (23) is rotatably installed on each of the four connecting pipes (22). An adjusting pipe (231) containing a nozzle is inserted into the end of the conveying pipe (23). A driving assembly is installed on the end cap (133). The driving assembly is used to drive the conveying pipe (23) and the adjusting pipe (231) to swing, thereby controlling the nozzle to switch in the lateral and vertical directions. The movement trajectories of adjacent conveying pipes (23) are opposite. The connecting pipe (22) has a guide groove (234) on its side wall, and the guide groove (234) is slidably connected to the regulating pipe (231). The conveying pipe (23) has an adjusting block (24) inserted inside, and the adjusting block (24) is conical. The adjusting block (24) is adapted to the air inlet (241) on the conveying pipe (23). The adjusting block (24) is in close contact with the extrusion plate (247) on the connecting pipe (22). When the regulating pipe (231) rotates from a vertical state to a horizontal state, the distance between the adjusting block (24) and the air inlet (241) becomes smaller, and the corresponding air output of the regulating pipe (231) decreases synchronously. The regulating pipe (231) is guided to retract on the conveying pipe (23) through the guide groove (234), so that the gas is sprayed evenly.

2. The continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, A frame (11) is installed on the continuous deposition furnace body (1). The frame (11) is surrounded by a fence, and a ladder is installed at one end of the frame. The ladder facilitates the operator to inspect and maintain the continuous deposition furnace body (1).

3. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, The continuous deposition furnace body (1) is equipped with an exhaust pipe (12) on top. A reversing valve (121) is installed at the output end of the exhaust pipe (12). A vacuum pipe (122) is installed at one output end of the reversing valve (121), and an exhaust gas pipe (123) is installed at the other output end of the reversing valve (121). The vacuum pipe (122) is connected to the vacuum system, and the exhaust gas pipe (123) is connected to the exhaust gas treatment system. The reversing valve (121) is used to switch the working state.

4. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, The bottom of the continuous deposition furnace body (1) is equipped with an electric conveying system (13). A lifting electric push rod (131) is installed on the output end of the electric conveying system (13). A connecting frame (132) is installed on the output end of the lifting electric push rod (131). The end of the connecting frame (132) is connected to the end cover (133). A vertical rod (135) is installed on the end cover (133), and a bearing plate (134) is installed on the top of the vertical rod (135).

5. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, The bottom of the diversion pipe (2) is equipped with an air inlet pipe (21), and the end of the air inlet pipe (21) is equipped with a connecting flange. The connecting pipe (22) has a notch, and the conveying pipe (23) is equipped with a sealing plate (235). The sealing plate (235) is slidably disposed at the notch.

6. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, The regulating tube (231) is equipped with a guide rod (232) on its side wall. The guide rod (232) is in a vertical state. A protrusion (233) is installed at the end of the guide rod (232). The protrusion (233) is slidably disposed on the guide groove (234). The guide groove (234) is arc-shaped.

7. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, A connecting rod (242) is installed through the adjusting block (24). A ball bearing (246) is installed at the bottom of the connecting rod (242). The bottom of the ball bearing (246) is in contact with the extrusion plate (247). A fixing frame (248) is installed on the extrusion plate (247). The fixing frame (248) is L-shaped. The end of the fixing frame (248) is connected to the side wall of the connecting pipe (22).

8. A continuous deposition furnace for producing carbon molecular sieves according to claim 7, characterized in that, A limiting seat (243) is sleeved on the outer wall of the connecting rod (242). The end of the limiting seat (243) is installed on the conveying pipe (23). A limiting plate (244) is installed on the outer wall of the connecting rod (242). A limiting spring (245) is sleeved on the connecting rod (242). One end of the limiting spring (245) is engaged with the limiting plate (244), and the other end of the limiting spring (245) is engaged with the limiting seat (243). The limiting spring (245) is used to drive the ball (246) to always be in contact with the extrusion plate (247).

9. A continuous deposition furnace for producing carbon molecular sieves according to claim 1, characterized in that, The driving assembly includes a pressure arm (33), a positioning shaft (331) is mounted on the rotation center of the pressure arm (33), the positioning shaft (331) is movably connected to the connecting pipe (22), and the end of the positioning shaft (331) is connected to the rotation center of the conveying pipe (23). A strip groove (332) is provided on the pressure arm (33), a slide rod (333) is slidably mounted on the strip groove (332), and a push rod (334) is mounted on the slide rod (333). The end of the push rod (334) is... An arc block (335) is installed at the end. A positioning frame (338) is movably installed through the side wall of the top rod (334), and the bottom of the positioning frame (338) is installed on the end cover (133). A positioning plate (336) is installed on the top rod (334). A positioning spring (337) is sleeved on the outer side wall of the top rod (334). One end of the positioning spring (337) is snapped onto the positioning plate (336), and the other end of the positioning spring (337) is snapped onto the positioning frame (338).

10. A continuous deposition furnace for producing carbon molecular sieves according to claim 9, characterized in that, The drive assembly also includes a turntable (3), on which a synchronous shaft (31) is mounted at the rotation center. The synchronous shaft (31) passes through the end cover (133). A drive motor (311) is mounted at the bottom of the end cover (133). The output end of the drive motor (311) is connected to the end of the synchronous shaft (31). Several pairs of top blocks (32) are mounted on the turntable (3), and the positioning spring (337) is used to drive the arc block (335) to fit against the top block (32).

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