Lithium battery material cooling reaction furnace

Abstract

The invention discloses a lithium battery material cooling reaction furnace, which comprises a reaction furnace, a cooling furnace, a transfer furnace, a spraying device and a driving mechanism, the reaction furnace comprises a feeding cylinder, a cooling cylinder and a discharging cylinder, the cooling furnace is internally provided with an inner cavity, the cooling cylinder is located in the inner cavity, and the feeding cylinder extends out of one end of the inner cavity and is rotatably connected with the transfer furnace; the discharging barrel extends out of the other end of the inner cavity, and the diameter of the cooling barrel is larger than that of the feeding barrel and that of the discharging barrel; the spraying device comprises a nozzle and a water supply system, the nozzle is arranged at the top of the inner cavity, and the water supply system is connected with the nozzle to spray water to the surface of the cooling cylinder; a water outlet is formed in the inner bottom of the inner cavity and is used for discharging sprayed water; the driving mechanism is arranged on the outer side of the cooling furnace and drives the reaction furnace to rotate, so that materials in the reaction furnace are uniformly cooled. The cooling device has the advantages of being simple in structure, uniform in cooling and long in service life.

Description

Technical Field

[0001] The invention relates to a cooling device, in particular to a lithium battery material cooling reaction furnace. Background Art

[0002] In the process of processing lithium battery materials, it is generally necessary to send the lithium battery materials into a rotary reactor for reaction. During the reaction, the lithium battery materials need to be heated and pressurized to speed up the reaction and improve production efficiency. After the reaction is completed, in order to unload the lithium battery materials as soon as possible and transport them to another process flow, the reacted lithium battery is usually sent to a cooling furnace for rapid cooling. However, the cooling method of the existing cooling furnace is mainly to set a plurality of cooling water pipes axially in the rotary reactor, and to pass cooling water into the water pipes so that the materials stirred in the rotary reactor can be in continuous contact with the cooling water pipes, thereby achieving the purpose of heat exchange. However, since the cooling water pipe rotates with the rotary reactor, a sealed rotary joint needs to be used at the water inlet and outlet of the cooling water pipe to connect the water pipe. This method makes the cooling structure in the rotary reactor very complicated, and the joint of the water pipe is prone to water leakage, and the operation stability is poor. In addition, the cooling water pipe cannot cool all parts of the side wall of the reactor, so it is easy to make the side wall of the rotary reactor unevenly hot and cold, which affects both the cooling effect and the service life of the rotary reactor. Summary of the invention

[0003] The object of the present invention is to provide a lithium battery material cooling reactor with simple structure, uniform cooling and long service life.

[0004] In order to achieve the above-mentioned purpose, the lithium battery material cooling reactor provided by the present invention includes a reactor, a cooling furnace, a transfer furnace, a spray device and a driving mechanism, the reactor includes a feed tube, a cooling tube and a discharge tube, an inner cavity is provided in the cooling furnace, the cooling tube is located in the inner cavity, the feed tube extends out of one end of the inner cavity and is rotatably connected to the transfer furnace; the discharge tube extends out of the other end of the inner cavity, the diameter of the cooling tube is larger than the diameters of the feed tube and the discharge tube; the spray device includes a nozzle and a water supply system, the nozzle is arranged on the top and inner wall of the inner cavity along the axial direction and circumferential direction of the cooling furnace, the water supply system is connected to the nozzle so that the nozzle sprays water to the surface of the cooling tube; a drain port is provided at the inner bottom of the inner cavity to discharge the water after spraying; the driving mechanism is arranged on the outside of the cooling furnace and drives the reactor to rotate so that the material inside the reactor is evenly cooled.

[0005] Compared with the prior art, the present invention divides the reactor into three sections, namely, a feed tube, a cooling tube and a discharge tube, so that the diameter of the cooling tube is larger than the diameter of the feed tube and the discharge tube, and the cooling tube is arranged in the inner cavity of the cooling furnace, and the feed tube and the discharge tube serve as a supporting end and a transition end, so that a spray device can be arranged in the cooling furnace. In addition, by using a nozzle to continuously spray cooling water to the upper top side wall of the cooling tube, and the lower bottom side wall of the cooling tube can be immersed in the cooling water stored in the bottom of the inner cavity, the cooling tube is continuously rotated, so that the material in the cooling tube can be continuously stirred and continuously contact and exchange heat with the side wall in the cooling tube, thereby achieving the purpose of rapid cooling. In addition, since the cooling tube is continuously rotated during cooling, the outer side wall can be evenly sprayed everywhere, the cooling is very uniform, and long-term use will not affect the service life of the reactor. In addition, since the spray device is arranged on the cooling furnace, the cooling furnace is in a stationary state, the water pipes used by the spray device are all statically connected, so that the water pipe connection structure is very simple and not prone to water leakage, which reduces the frequency of maintenance and effectively improves production efficiency.

[0006] Preferably, a first sealing device is provided between the feed barrel and the converter, and the first sealing device can prevent material, energy and gas from leaking from the gap between the feed barrel and the converter, thereby ensuring the safety and reliability of operation.

[0007] Preferably, a second sealing device is provided between the feed tube and the cooling furnace and between the discharge tube and the cooling furnace. The second sealing device can prevent moisture and hot air from leaking from the gap between the feed tube and the cooling furnace, thereby improving the stability of operation.

[0008] Preferably, a circulation device is further included, the circulation device includes a water pump, a control valve and a water pipe, the drain port is arranged at one end of the inner cavity close to the water outlet cylinder, the input end of the water pump is connected to the drain port, the output end of the water pump is connected to the control valve, the control valve is connected to the water pipe, and the water pipe is connected to the water supply system. The circulation device can make the cooled water flow back to the water supply system for reuse, thereby greatly saving water and reducing production costs.

[0009] Specifically, the outer wall of the cooling cylinder is provided with paddles along the circumferential direction, and the paddles have multiple groups, which are arranged along the axial direction of the cooling cylinder respectively; the paddles drive the water at the bottom of the inner cavity to flow from one end close to the feed cylinder to one end close to the discharge cylinder. Since the inner bottom of the inner cavity can store a certain amount of water, thereby forming a pool of water that can soak the lower side of the cooling cylinder, therefore, by providing paddles on the outer wall of the cooling cylinder, the power of the rotation of the cooling cylinder can be used to push the water in the pool, so that the water in the pool flows from one end close to the feed cylinder to one end close to the discharge cylinder, so that it can fully contact and cool with the cooling cylinder, effectively improving the cooling effect. And it is conducive to pushing the water to the vicinity of the drain port, which is conducive to drainage. In addition, the paddles can also push the airflow on the top of the inner cavity to the other end under the action of rotation, so as to facilitate the rapid discharge of the hot air in the inner cavity and improve the heat dissipation effect.

[0010] Specifically, an air inlet connecting the outside with the inner cavity is provided at one end of the top of the cooling furnace close to the feeding tube, and an air outlet connecting the outside with the inner cavity is provided at one end of the top of the cooling furnace close to the discharging tube. This can speed up the discharge of hot gas in the inner cavity, thereby improving the cooling effect of the reaction furnace.

[0011] Specifically, the air outlet is provided with an exhaust fan, which can speed up the outflow of air from the inner cavity, thereby speeding up the cooling speed.

[0012] Preferably, the feed barrel, cooling barrel and discharge barrel are provided with push blades, and the push blades in the feed barrel and cooling barrel drive the material to move toward the discharge barrel; the setting direction of the push blades in the discharge barrel is opposite to the setting direction of the push blades in the cooling barrel. The use of the push blades can not only make the material evenly stirred in the reaction furnace, but also make the material fully touch the side wall of the reaction furnace; and by setting the push blades in the discharge barrel in the opposite direction to the setting direction of the push blades in the cooling barrel, the material discharge speed in the discharge barrel can be slowed down.

[0013] Preferably, the diameters between the feed cylinder and the cooling cylinder and between the discharge cylinder and the cooling cylinder gradually increase. This allows for smoother material conduction between the cooling cylinder and the feed cylinder or the discharge cylinder, and at the same time, allows the outer diameter of the cooling cylinder to be larger than the outer diameters of the feed cylinder and the discharge cylinder, so that when the cooling cylinder is placed in the inner cavity, the lower side of its outer wall is at a height lower than the through hole of the cooling furnace that supports the feed cylinder and the discharge cylinder, thereby ensuring that the lower side of the cooling cylinder can be immersed below the water surface of the pool at the bottom of the inner cavity, thereby accelerating the cooling speed.

[0014] Preferably, the cooling furnace includes an upper furnace body and a lower furnace body, and semicircular upper openings are provided at both ends of the upper furnace body, and semicircular lower openings are provided at both ends of the lower furnace body, so that when the upper furnace body is covered on the lower furnace body, the two upper openings and the lower openings respectively form through holes for the feed barrel and the discharge barrel to extend out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the lithium battery material cooling reaction furnace of the present invention.

[0016] Figure 2 It is a structural diagram of the reactor of the lithium battery material cooling reactor of the present invention.

[0017] Figure 3 It is a structural diagram of a cooling furnace of a lithium battery material cooling reaction furnace of the present invention. DETAILED DESCRIPTION

[0018] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0019] like Figures 1 to 3 As shown, the lithium battery material cooling reactor 100 of the present invention includes a reactor 1, a cooling furnace 2, a transfer furnace 3, a spray device 4, a driving mechanism 5 and a support frame 6. The reactor 1 includes a feed cylinder 11, a cooling cylinder 12 and a discharge cylinder 13. The cooling furnace 2 is provided with an inner cavity 21. The cooling cylinder 12 is located in the inner cavity 21. The feed cylinder 11 extends out of one end of the inner cavity 21 and is rotatably connected to the transfer furnace 3; the discharge cylinder 13 extends out of the other end of the inner cavity 21. The diameter of the cooling cylinder 12 is larger than that of the feed cylinder 11 and the discharge cylinder 13. The diameter of the cylinder 13; the spray device 4 includes a nozzle 41 and a water supply system 42, the nozzle 41 is arranged on the top and inner wall of the inner cavity 21 along the axial direction and circumferential direction of the cooling furnace 2, and the water supply system 42 is connected to the nozzle 41 so that the nozzle 41 sprays water to the surface of the cooling cylinder 12; the inner bottom of the inner cavity 21 is provided with a drain port 22 to discharge the water after spraying; the driving mechanism 5 is arranged outside the cooling furnace 2 and drives the reaction furnace 1 to rotate so that the material inside the reaction furnace 1 is evenly cooled. One end of the feed cylinder 11 and one end of the discharge cylinder 13 are rotatably supported on the support frame 6 through bearings. The transfer furnace 3 and the cooling furnace 2 are fixed on the support frame 6.

[0020] For example Figure 1As shown, a first sealing device 7 is provided between the feed barrel 11 and the converter 3. The first sealing device 7 can prevent material, energy and gas from leaking from the gap between the feed barrel 11 and the converter 3, thereby ensuring the safety and reliability of operation.

[0021] For example Figure 1 As shown, a second sealing device 8 is provided between the feed barrel 11 and the cooling furnace 2 and between the discharge barrel 13 and the cooling furnace 2. The second sealing device 8 can prevent moisture and hot air from leaking from the gap between the feed barrel 11 and the cooling furnace 2, thereby improving the stability of operation.

[0022] Please see again Figure 1 The lithium battery material cooling reactor 100 further includes a circulation device 9, which includes a water pump 91, a control valve 92 and a water pipe 93. The drain port 22 is provided at one end of the inner cavity 21 close to the water outlet cylinder. The input end of the water pump 91 is connected to the drain port 22, and the output end of the water pump 91 is connected to the control valve 92. The control valve 92 is connected to the water pipe 93, and the water pipe 93 is connected to the water supply system 42. The circulation device 9 is provided so that the cooled water can flow back to the water supply system 42 for reuse, thereby greatly saving water and reducing production costs.

[0023] See also Figure 1 and Figure 2 The outer wall of the cooling cylinder 12 is provided with paddles 121 along the circumferential direction. The paddles 121 have multiple groups and are arranged along the axial direction of the cooling cylinder 12. The paddles 121 drive the water at the bottom of the inner cavity 21 to flow from one end close to the feed cylinder 11 to one end close to the discharge cylinder 13. Since the inner bottom of the inner cavity 21 can store a certain amount of water, thereby forming a pool 211 that can soak the lower side of the cooling cylinder 12, by providing the paddles 121 on the outer wall of the cooling cylinder 12, the rotation power of the cooling cylinder 12 can be used to enable the paddles 121 to push the water in the pool 211, so that the water in the pool 211 flows from one end close to the feed cylinder 11 to one end close to the discharge cylinder 13, so that it can fully contact with the cooling cylinder 12 for cooling, effectively improving the cooling effect. In addition, it is beneficial to push the water to the vicinity of the drain port 22, which is beneficial for drainage. In addition, the blades 121 can also push the airflow on the top of the inner cavity 21 to flow to the other end under the action of rotation, so as to facilitate the rapid discharge of hot air in the inner cavity 21 and improve the heat dissipation effect.

[0024] Please see again Figure 1The top of the cooling furnace 2 near the feeding tube 11 is provided with an air inlet 23 connecting the outside with the inner cavity 21, and the top of the cooling furnace 2 near the discharging tube 13 is provided with an air outlet 24 connecting the outside with the inner cavity 21. In this way, the hot gas discharge in the inner cavity 21 can be accelerated, thereby improving the cooling effect of the reaction furnace 1. Specifically, the air outlet 24 is provided with an exhaust fan 10. The exhaust fan 10 can accelerate the outflow of the airflow of the inner cavity 21, thereby accelerating the cooling speed.

[0025] Please see again Figure 1 and Figure 2 The feed barrel 11, the cooling barrel 12 and the discharge barrel 13 are provided with push blades 1a, and the push blades 1a in the feed barrel 11 and the cooling barrel 12 drive the material to move toward the discharge barrel 13; the setting direction of the push blades 1a in the discharge barrel 13 is opposite to the setting direction of the push blades 1a in the cooling barrel 12, so that the push blades 1a in the discharge barrel 13 drive the material to move toward the inside of the cooling barrel 12. The push blades 1a can be used to evenly stir the material in the reactor 1 and fully touch the side wall of the reactor 1; and the setting direction of the push blades 1a in the discharge barrel 13 is opposite to the setting direction of the push blades 1a in the cooling barrel 12, which can slow down the discharge speed of the material in the discharge barrel 13, delay the time for the lithium battery material to flow out of the cooling barrel 12, and thus improve the cooling effect. The diameters between the feed cylinder 11 and the cooling cylinder 12 and between the discharge cylinder 13 and the cooling cylinder 12 gradually increase. This allows for smoother material conduction between the cooling cylinder 12 and the feed cylinder 11 or the discharge cylinder 13, and at the same time, allows the outer diameter of the cooling cylinder 12 to be larger than the outer diameters of the feed cylinder 11 and the discharge cylinder 13, so that when the cooling cylinder 12 is accommodated in the inner cavity 21, the lower side of its outer wall is at a height lower than the through hole of the cooling furnace 2 that supports the feed cylinder 11 and the discharge cylinder 13, thereby ensuring that the lower side of the cooling cylinder 12 can be immersed below the water surface of the water pool 211 at the bottom of the inner cavity 21, thereby accelerating the cooling speed.

[0026] See also Figure 3 The cooling furnace 2 includes an upper furnace body 2a and a lower furnace body 2b. Semicircular upper openings are provided at both ends of the upper furnace body 2a, and semicircular lower openings are provided at both ends of the lower furnace body 2b, so that when the upper furnace body is covered on the lower furnace body, the two upper openings and the lower openings respectively form through holes for the feed barrel 11 and the discharge barrel 13 to extend out. The second sealing device 8 is arranged at the through hole, and the second sealing device 8 can be a sealed bearing.

[0027] Combining the above and Figure 1The working principle of the lithium battery material cooling reactor 100 of the present invention is described in detail as follows:

[0028] First, the lithium battery material enters the transfer furnace 3, and the driving mechanism 5 drives the reaction furnace 1 to rotate in the cooling furnace 2. Then, the lithium battery material passes through the feed barrel 11 of the reaction furnace 1 and enters the cooling barrel 12. The lithium battery material moves forward in the cooling barrel 12 under the push of the pushing blade 1a, and is continuously mixed and stirred and in contact with the barrel wall for heat conduction. In this process, the spray device 4 is started, and the nozzle 41 sprays water to the outer wall of the cooling barrel 12. The cooling water flows from the top to the bottom along the side wall of the cooling barrel 12, so that the side wall of the cooling barrel 12 is completely covered by the cooling water, so that the heat of the cooling barrel 12 can be evenly taken away, and the cooling barrel 12 is cooled. When the cooling water falls to the lower bottom of the inner cavity 21, a pool of water 211 is formed at the lower bottom of the inner cavity 21, and the pool of water 211 can immerse the lower side wall of the cooling barrel 12, thereby cooling the cooling barrel 12 again. At the same time, the cooling cylinder 12 rotates to drive the paddle 121, so that the paddle 121 continuously stirs the water in the pool 211, and uses the water to flow toward the direction close to the discharge cylinder 13, so that the cooling water at one end close to the feed cylinder 11 can flow to cool the cooling cylinder 12, and at the same time form a moving water flow, which is convenient for flowing out of the drain port 22 and is re-delivered to the water supply system 42 by the circulation system to achieve circulating cooling. Finally, the lithium battery is output from the discharge cylinder 13 after being cooled.

[0029] Compared with the prior art, the present invention divides the reactor 1 into three sections, namely, a feed tube 11, a cooling tube 12 and a discharge tube 13, so that the diameter of the cooling tube 12 is larger than the diameters of the feed tube 11 and the discharge tube 13, and the cooling tube 12 is arranged in the inner cavity 21 of the cooling furnace 2, while the feed tube 11 and the discharge tube 13 serve as supporting ends and transition ends, so that a spray device 4 can be arranged in the cooling furnace 2. In addition, by using a nozzle 41 to continuously spray cooling water to the upper top side wall of the cooling tube 12, and the lower bottom side wall of the cooling tube 12 can be immersed in the cooling water stored in the bottom of the inner cavity 21, and the cooling tube 12 is continuously rotating, so that the material in the cooling tube 12 can be continuously stirred and continuously contact and exchange heat with the side wall in the cooling tube 12, thereby achieving the purpose of rapid cooling. In addition, since the cooling cylinder 12 rotates continuously during cooling, the outer wall thereof can be sprayed uniformly everywhere, and the cooling is very uniform, and long-term use will not affect the service life of the reaction furnace 1. In addition, since the spray device 4 is arranged on the cooling furnace 2, and the cooling furnace 2 is in a stationary state, the water pipes 93 used by the spray device 4 are all statically connected, so that the connection structure of the water pipes 93 is very simple, and it is not easy to leak, which reduces the frequency of maintenance and effectively improves production efficiency.

[0030] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A lithium battery material cooling reactor, characterized in that: It includes a reaction furnace, a cooling furnace, a transfer furnace, a spray device and a driving mechanism. The reaction furnace includes a feed tube, a cooling tube and a discharge tube. An inner cavity is provided in the cooling furnace, and the cooling tube is located in the inner cavity. The feed tube extends out of one end of the inner cavity and is rotatably connected to the transfer furnace; the discharge tube extends out of the other end of the inner cavity, and the diameter of the cooling tube is larger than the diameters of the feed tube and the discharge tube; the spray device includes a nozzle and a water supply system. The nozzles are arranged on the top and inner wall of the inner cavity along the axial direction and circumferential direction of the cooling furnace, and the water supply system is connected to the nozzles so that the nozzles spray water onto the surface of the cooling tube; a drain port is provided at the inner bottom of the inner cavity to discharge the water after spraying; the driving mechanism is arranged on the outside of the cooling furnace and drives the reaction furnace to rotate so that the material inside the reaction furnace is evenly cooled.

2. The lithium battery material cooling reactor according to claim 1, characterized in that: A first sealing device is provided between the feed tube and the transfer furnace.

3. The lithium battery material cooling reactor according to claim 1, characterized in that: A second sealing device is provided between the feed cylinder and the cooling furnace and between the discharge cylinder and the cooling furnace.

4. The lithium battery material cooling reactor according to claim 1, characterized in that: It also includes a circulation device, which includes a water pump, a control valve and a water pipe. The drain outlet is arranged at one end of the inner cavity close to the water outlet cylinder, the input end of the water pump is connected to the drain outlet, the output end of the water pump is connected to the control valve, the control valve is connected to the water pipe, and the water pipe is connected to the water supply system.

5. The lithium battery material cooling reactor as claimed in claim 4, characterized in that: The outer wall of the cooling cylinder is circumferentially provided with paddles, and the paddles have multiple groups and are arranged along the axial direction of the cooling cylinder respectively; the paddles drive the water at the bottom of the inner cavity to flow from one end close to the feed cylinder to one end close to the discharge cylinder.

6. The lithium battery material cooling reactor according to claim 4, characterized in that: An air inlet connecting the outside and the inner cavity is provided at one end of the top of the cooling furnace close to the feed tube, and an air outlet connecting the outside and the inner cavity is provided at one end of the top of the cooling furnace close to the discharge tube.

7. The lithium battery material cooling reactor according to claim 6, characterized in that: The air outlet is provided with an exhaust fan.

8. The lithium battery material cooling reactor according to claim 1, characterized in that: The feed cylinder, cooling cylinder and discharge cylinder are provided with push blades, and the push blades in the feed cylinder and cooling cylinder drive the material to move toward the discharge cylinder; the setting direction of the push blades in the discharge cylinder is opposite to the setting direction of the push blades in the cooling cylinder.

9. The lithium battery material cooling reactor according to claim 1, characterized in that: The diameters between the feed cylinder and the cooling cylinder and between the discharge cylinder and the cooling cylinder gradually increase.

10. The lithium battery material cooling reactor according to claim 1, characterized in that: The cooling furnace includes an upper furnace body and a lower furnace body. Semicircular upper openings are provided at both ends of the upper furnace body, and semicircular lower openings are provided at both ends of the lower furnace body. When the upper furnace body is covered on the lower furnace body, the two upper openings and the lower openings respectively form through holes for the feed barrel and the discharge barrel to extend out.

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