A circulating carbon removal device for improving carbon removal efficiency

Abstract

The present invention relates to a circulating decarbonization equipment for improving the decarbonization efficiency, comprising a decarbonization furnace body, a cyclone generating device, a receiving assembly and a high-temperature heating tube, wherein the cyclone generating device is installed on the top of the decarbonization furnace body. The present invention relates to a circulating decarbonization equipment for improving the decarbonization efficiency. When decarbonization is performed, aluminum nitride powder is placed in the receiving assembly and thus placed in the decarbonization furnace body, and the cyclone generating device is covered to seal the interior of the decarbonization furnace body, and the cyclone generating device and the high-temperature heating tube are started, so that the cyclone generating device forms a cyclone around the high-temperature heating tube in the decarbonization furnace body, thereby rolling up the aluminum nitride powder to rotate around the high-temperature heating tube, and the aluminum nitride powder can be heated and decarbonized uniformly and stably, and the aluminum nitride powder can be sucked by the strong attraction of the cyclone to prevent it from being carried away by the air flow, and the reaction gas coming in from the air inlet pipe can be guided to follow the aluminum nitride powder to flow around the high-temperature heating tube, so as to fully contact with the aluminum nitride powder.

Description

Technical Field

[0001] The invention belongs to the technical field of aluminum nitride carbon removal, and in particular relates to a circulating carbon removal device for improving carbon removal efficiency. Background Art

[0002] At present, the main industrial production methods of aluminum nitride include direct nitridation of aluminum powder, carbon thermal reduction of aluminum oxide, and self-propagating method. Among them, aluminum nitride prepared by carbon thermal reduction of aluminum oxide has the advantages of uniform particle size distribution, high purity, and good molding and sintering properties, so it is widely used. When aluminum nitride is prepared by carbon thermal reduction of aluminum oxide, in order to accelerate the forward reaction, excess carbon is often added, which needs to be removed in the back-end process. The current decarburization method mostly uses stacking aluminum oxide crucibles in a muffle furnace, and keeping them warm for 5 to 15 hours in an environment of 500 to 800 ° C for decarburization treatment. During the decarburization process, it is necessary to set up an air inlet and an air outlet pipe to form gas circulation, ensuring that the entire device is in a positive pressure state, which is conducive to the reaction gas entering the product raw material. However, during the flow of gas, aluminum nitride is easily brought out, resulting in the loss of aluminum nitride. Summary of the invention

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a circulating carbon removal device with improved carbon removal efficiency, which can stabilize aluminum nitride and prevent aluminum nitride from being carried away by airflow.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a circulating decarbonization equipment for improving the decarbonization efficiency, comprising a decarbonization furnace body, a cyclone generating device, a supporting assembly and a high-temperature heating tube, wherein the cyclone generating device is installed on the top of the decarbonization furnace body, the supporting assembly is located at the bottom of the decarbonization furnace body, the high-temperature heating tube is installed on the supporting assembly and placed inside the decarbonization furnace body, the high-temperature heating tube is located at the center of the decarbonization furnace body and is arranged along the height of the decarbonization furnace body, and the upper and lower parts of the side walls of the decarbonization furnace body are respectively provided with an air inlet pipe and an air outlet pipe.

[0005] The cyclone generating device includes a sealing cover, a rotating disk, a fan and a plurality of air outlets. The sealing cover is arranged on the top of the decarbonization furnace body. The rotating disk is rotatably installed on the sealing cover, and the rotating shaft of the rotating disk is coaxially arranged with the central axis of the high-temperature heating tube. The sealing cover is provided with a driving motor for driving the rotating disk to rotate. The plurality of air outlets are equidistantly arranged on the rotating disk around the high-temperature heating tube. An air duct is provided above the rotating disk and is connected to the air outlet in a one-to-one manner. The air inlet ends of the air ducts converge and are connected to form a main connecting pipe. The fan is installed on the sealing cover. The air outlet of the fan is connected to the air outlet pipe, and the main connecting pipe is rotatably connected to the air outlet pipe.

[0006] A transmission disc is fixedly mounted on the main connecting pipe, teeth are arranged on the upper periphery of the transmission disc, and a gear meshing with the teeth is arranged at the output end of the driving motor.

[0007] A sliding limit ring is arranged on the top of the transmission disc, and a sliding limit groove which is slidably matched with the sliding limit ring is arranged at a position of the fan corresponding to the sliding limit ring.

[0008] The receiving assembly includes a lifting machine and a receiving plate. The lifting machine is located below the decarbonization furnace body, and the output direction of the lifting machine is set toward the decarbonization furnace body. The receiving plate is installed on the output end of the lifting machine, and the high-temperature heating tube is installed at the center position of the receiving plate.

[0009] The receiving surface of the receiving tray is arranged from high to low from the edge of the tray toward the center of the tray, and the cross section of the receiving surface of the receiving tray forms an arc.

[0010] A filtering storage device is installed on the air outlet pipe.

[0011] The filter storage device includes a filter pipe and a plurality of filter plates. The air outlet pipe is provided with an external threaded port, the filter pipe is provided with a threaded connection port connected to the external threaded port, and the plurality of filter plates are arranged equidistantly along the width of the filter pipe and installed in the filter pipe.

[0012] A cleaning component is installed on each filter plate, and a storage box communicated with the filter pipe is installed at the bottom of the filter pipe.

[0013] The cleaning assembly includes a rotary motor and a cleaning leaf, wherein the rotary motor and the cleaning leaf are respectively located on two sides corresponding to the filter plate, the cleaning leaf is fixedly connected to the rotary motor for rotation, and the cleaning leaf is provided with bristles that fit the filter plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a circulating carbon removal equipment for improving carbon removal efficiency. When performing carbon removal, aluminum nitride powder is placed in a receiving assembly and then placed in a carbon removal furnace body, a cyclone generating device is covered to seal the interior of the carbon removal furnace body, and the cyclone generating device and the high-temperature heating tube are started, so that the cyclone generating device forms a cyclone around the high-temperature heating tube in the carbon removal furnace body, thereby rolling up the aluminum nitride powder and rotating it around the high-temperature heating tube, which can heat and decarbonize the aluminum nitride powder evenly and stably, and can also absorb the aluminum nitride powder through the strong attraction of the cyclone to prevent it from being carried away by the air flow, and can guide the reaction gas coming in from the air inlet pipe to follow the aluminum nitride powder and flow around the high-temperature heating tube, so as to fully contact with the aluminum nitride powder.

[0016] 2. The present invention provides a circulating decarbonization equipment for improving decarbonization efficiency, which is provided with a receiving assembly. The receiving plate can be driven by a lifting machine to move away from or close to the bottom of the decarbonization furnace body, so that the aluminum nitride can be placed on the receiving plate and automatically placed in the decarbonization furnace body. The cross-section of the receiving surface of the receiving plate is arranged in an arc shape, so that the aluminum nitride can be gathered at the bottom of the receiving plate after the decarbonization is completed, thereby facilitating collection.

[0017] 3. The present invention provides a circulating carbon removal device for improving carbon removal efficiency, which further prevents aluminum nitride from being carried away by airflow by setting a filter pipe and a plurality of filter plates, and can be recovered by disassembling the filter pipe to prevent losses.

[0018] 4. The present invention provides a circulating carbon removal device for improving carbon removal efficiency, which is provided with a cleaning component and a storage box. The cleaning leaves are driven to rotate by a rotating motor. The cleaning leaves clean the aluminum nitride attached to the filter plate, causing the aluminum nitride to fall into the storage box for collection, thereby further reducing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the circulating carbon removal equipment of the present invention;

[0020] Figure 2 is a schematic cross-sectional structure diagram of a cyclone generating device of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the rotating disk of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the holding component of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the filtering and storing device of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the circulating carbon removal equipment of the present invention when in use.

[0025] Markings in the figure: 1. Carbon removal furnace body; 2. Cyclone generating device; 3. Supporting assembly; 4. High-temperature heating tube; 5. Air inlet pipe; 6. Air outlet pipe; 7. Sealing cover; 8. Rotating disk; 9. Fan; 10. Air outlet; 11. Driving motor; 12. Air guide pipe; 13. Main connecting pipe; 14. Air outlet pipe; 15. Transmission disk; 16. Sliding limit ring; 17. Sliding limit groove; 18. Lifting machine; 19. Supporting disk; 20. Filter storage device; 21. Filter pipe; 22. Filter plate; 23. Storage box; 24. Rotating motor; 25. Cleaning blade. DETAILED DESCRIPTION

[0026] In order to make the above features and advantages of the present invention more obvious and easy to understand, embodiments are given below with reference to the accompanying drawings for detailed description as follows.

[0027] like Figure 1-6 As shown, this embodiment provides a circulating carbon removal equipment for improving carbon removal efficiency, including a carbon removal furnace body 1, a cyclone generating device 2, a receiving assembly 3 and a high-temperature heating tube 4. The carbon removal furnace body 1 is hollow, the cyclone generating device 2 is installed on the top of the carbon removal furnace body 1, the receiving assembly 3 is located at the bottom of the carbon removal furnace body 1, the high-temperature heating tube 4 is installed on the receiving assembly 3 and is placed inside the carbon removal furnace body 1, the high-temperature heating tube 4 is located at the center of the carbon removal furnace body 1 and is arranged along the height of the carbon removal furnace body 1, and the upper and lower parts of the side wall of the carbon removal furnace body 1 are respectively provided with an air inlet pipe 5 and an air outlet pipe 6, and the air outlet speed and air inlet speed of the air inlet pipe 5 and the air outlet pipe 6 are less than the rotation speed of the cyclone generated by the cyclone generating device 2. During decarbonization, the aluminum nitride powder is placed on the receiving assembly 3 and then placed in the decarbonization furnace body 1, the cyclone generating device 2 is covered to seal the interior of the decarbonization furnace body 1, and the cyclone generating device 2 and the high-temperature heating tube 4 are started, so that the cyclone generating device 2 forms a cyclone around the high-temperature heating tube 4 in the decarbonization furnace body 1, thereby rolling up the aluminum nitride powder and rotating it around the high-temperature heating tube 4, which can heat and decarbonize the aluminum nitride powder evenly and stably, and can also use the strong attraction of the cyclone to absorb the aluminum nitride powder to prevent it from being carried away by the airflow, and can guide the reaction gas coming in from the air inlet pipe 5 to follow the aluminum nitride powder and flow around the high-temperature heating tube 4, so as to fully contact with the aluminum nitride powder.

[0028] Furthermore, the cyclone generating device 2 includes a sealing cover 7, a rotating disk 8, a fan 9 and a plurality of air outlets 10. The sealing cover 7 is provided on the top of the decarbonizing furnace body 1. The rotating disk 8 is rotatably mounted on the sealing cover 7, and the rotating shaft of the rotating disk 8 is coaxially arranged with the central axis of the high-temperature heating tube 4. The sealing cover 7 is provided with a driving motor 11 for driving the rotating disk 8 to rotate. A plurality of air outlets 10 are equidistantly arranged on the rotating disk 8 around the high-temperature heating tube 4. An air duct 12 is provided above the rotating disk 8 and is connected to the air outlets 10 in a one-to-one correspondence. The air inlet ends of the air ducts 12 converge and are connected to form a total connecting pipe 13. The fan 9 is installed on the sealing cover 7. The air outlet of the fan 9 is connected with an air outlet pipe 14. The total connecting pipe 13 is sealed and rotatably connected with the air outlet pipe 14. Specifically, a transmission disk 15 is fixedly mounted on the total connecting pipe 13, and teeth are provided on the periphery above the transmission disk 15. A gear meshing with the teeth is provided at the output end of the driving motor 11. The fan 9 is started, and the main connecting pipe 13 rotates with the air outlet pipe 14 to make the wind blow out from the multiple air outlets 10 through the air guide pipe 12. Then, the entire rotating disk 8 is rotated by the driving motor 11 and the transmission disk 15, thereby driving the multiple air outlets 10 to rotate, so that the blown wind also follows the rotation to form a cyclone, so that the aluminum nitride rotates with the cyclone.

[0029] Furthermore, a sliding limit ring 16 is provided on the top of the transmission disc 15, and a sliding limit groove 17 that is slidably matched with the sliding limit ring 16 is provided at the position of the fan 9 corresponding to the sliding limit ring 16. The transmission disc 15 is limited to rotate stably to prevent derailment.

[0030] Furthermore, the receiving assembly 3 includes a lifting machine 18 and a receiving tray 19. The lifting machine 18 is located below the decarbonization furnace body 1, and the output direction of the lifting machine 18 is set toward the decarbonization furnace body 1. The receiving tray 19 is installed on the output end of the lifting machine 18, and the high-temperature heating tube 4 is installed at the center of the receiving tray 19. A controller for controlling the heating and temperature rise of the high-temperature heating tube 4 is installed on one side of the lifting machine 18. Specifically, the receiving surface of the receiving tray 19 is set from high to low from the edge of the tray to the center of the tray, and the cross section of the receiving surface of the receiving tray 19 forms an arc. The receiving tray 19 can be driven away from or attached to the bottom of the decarbonization furnace body 1 by the lifting machine 18, so that the aluminum nitride can be placed on the receiving tray 19 and automatically placed in the decarbonization furnace body 1, and the cross section of the receiving surface of the receiving tray 19 is set in an arc shape, which is convenient for aluminum nitride to gather at the bottom of the receiving tray 19 after the decarbonization is completed, so as to facilitate collection.

[0031] Furthermore, a filter storage device 20 is installed on the air outlet pipe 6. Specifically, the filter storage device 20 includes a filter pipe 21 and a plurality of filter plates 22. The air outlet pipe 6 is provided with an external threaded port, the filter pipe 21 is provided with a threaded connection port connected to the external threaded port, and the plurality of filter plates 22 are arranged equidistantly along the width of the filter pipe 21 and installed in the filter pipe 21. The filter pipe 21 and the plurality of filter plates 22 are provided to further prevent aluminum nitride from being carried away by the airflow, and the filter pipe 21 can be disassembled for recovery to prevent loss.

[0032] Furthermore, a cleaning assembly is installed on each filter plate 22, and a storage box 23 communicating with the filter pipe 21 is installed at the bottom of the filter pipe 21, and the storage box 23 is connected to the filter pipe 21 by a snap. Specifically, the cleaning assembly includes a rotary motor 24 and a cleaning leaf 25, which are respectively located on the corresponding sides of the filter plate 22, and the cleaning leaf 25 is fixedly connected to the rotation of the rotary motor 24, and the cleaning leaf 25 is provided with bristles that fit the filter plate 22. The rotary motor 24 drives the cleaning leaf 25 to rotate, and the cleaning leaf 25 cleans the aluminum nitride attached to the filter plate 22, so that the aluminum nitride falls into the storage box 23 for collection, further reducing the loss.

[0033] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circulating carbon removal device for improving carbon removal efficiency, Features: It includes a decarbonization furnace body, a cyclone generating device, a receiving assembly and a high-temperature heating tube, wherein the cyclone generating device is installed on the top of the decarbonization furnace body, the receiving assembly is located at the bottom of the decarbonization furnace body, the high-temperature heating tube is installed on the receiving assembly and is placed inside the decarbonization furnace body, the high-temperature heating tube is located at the center of the decarbonization furnace body and is arranged along the height of the decarbonization furnace body, and the upper and lower parts of the side walls of the decarbonization furnace body are respectively provided with an air inlet pipe and an air outlet pipe; the cyclone generating device includes a sealing cover, a rotating disk, a fan and a plurality of air outlets, the sealing cover is arranged on the top of the decarbonization furnace body, the rotating disk is rotatably installed on the sealing cover, and the rotating axis of the rotating disk is coaxially arranged with the central axis of the high-temperature heating tube, the sealing cover A driving motor for driving the rotating disk to rotate is provided on it, and a plurality of air outlets are equidistantly arranged on the rotating disk around the high-temperature heating tube, and an air guide duct is provided above the rotating disk and is connected to the air outlet in a one-to-one manner, and the air inlet ends of the air guide ducts converge and are connected to form a main connecting pipe, and the fan is installed on a sealing cover, and the air outlet of the fan is connected to the air outlet duct, and the main connecting pipe is rotatably connected to the air outlet duct; a transmission disk is fixedly installed on the main connecting pipe, and teeth are provided on the periphery of the upper part of the transmission disk, and a gear meshing with the teeth is provided at the output end of the driving motor; a sliding limit ring is provided on the top of the transmission disk, and a sliding limit groove that slidably cooperates with the sliding limit ring is provided at the position of the fan corresponding to the sliding limit ring.

2. A circulating carbon removal device for improving carbon removal efficiency according to claim 1, Features: The receiving assembly includes a lifting machine and a receiving plate. The lifting machine is located below the decarbonization furnace body, and the output direction of the lifting machine is set toward the decarbonization furnace body. The receiving plate is installed on the output end of the lifting machine, and the high-temperature heating tube is installed at the center position of the receiving plate.

3. A circulating carbon removal device for improving carbon removal efficiency according to claim 2, Features: The receiving surface of the receiving tray is arranged from high to low from the edge of the tray toward the center of the tray, and the cross section of the receiving surface of the receiving tray forms an arc.

4. A circulating carbon removal device for improving carbon removal efficiency according to claim 1, Features: A filtering storage device is installed on the air outlet pipe.

5. A circulating carbon removal device for improving carbon removal efficiency according to claim 4, Features: The filter storage device includes a filter pipe and a plurality of filter plates. The air outlet pipe is provided with an external threaded port, the filter pipe is provided with a threaded connection port connected to the external threaded port, and the plurality of filter plates are arranged equidistantly along the width of the filter pipe and installed in the filter pipe.

6. A circulating carbon removal device for improving carbon removal efficiency according to claim 5, Features: A cleaning component is installed on each filter plate, and a storage box communicated with the filter pipe is installed at the bottom of the filter pipe.

7. A circulating carbon removal device for improving carbon removal efficiency according to claim 6, Features: The cleaning assembly includes a rotary motor and a cleaning leaf, wherein the rotary motor and the cleaning leaf are respectively located on two sides corresponding to the filter plate, the cleaning leaf is fixedly connected to the rotary motor for rotation, and the cleaning leaf is provided with bristles that fit the filter plate.

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