Lithium battery material high temperature reaction continuous production equipment

Abstract

The present invention discloses a lithium battery material high temperature reaction continuous production equipment, including a feeding device, a rotary heating reaction device, a rotary cooling device and a transfer device, wherein the transfer device is respectively connected between the feeding device and the rotary heating reaction device and between the rotary heating reaction device and the rotary cooling device; the rotary heating reaction device includes a heating furnace body, a rotary drum, a heating device and a driving mechanism, wherein the heating furnace body is divided into at least two mutually insulated heating zones, the rotary drum is rotatably arranged in the heating furnace body around its own central axis and passes through each of the heating zones, the driving mechanism drives the rotary drum to rotate, and the heating device is respectively arranged in each of the heating zones to heat the rotary drum in sections. The present invention has the advantages of fully automated continuous production and high production efficiency.

Description

Technical Field

[0001] The present invention relates to a lithium battery material production device, in particular to a lithium battery material high temperature reaction continuous production device with full automation and continuous production and high production efficiency. Background Art

[0002] Lithium batteries are batteries that use lithium metal and lithium alloy as negative electrode materials and use non-aqueous electrolytic solutions. Due to the very unstable chemical properties of lithium metal, lithium batteries are very likely to burn or explode due to high temperature environments during production and processing. Therefore, the rotary kiln for processing lithium batteries needs to meet very high requirements, requiring uniform stirring and slow movement. In addition, high-nickel materials in lithium batteries are easy to stick to the furnace wall, resulting in low production capacity. Therefore, the current production method requires manual loading, rotation, and unloading, and the degree of automation is low. In addition, the prior art adopts an intermittent production method. For example, to heat 2 tons of materials to 500 to 1000 degrees Celsius, a rotary kiln is needed to heat these materials at one time, and the heating time is about 6-8 hours; after the heating is completed, these high-temperature materials need to be manually transferred to the cooling furnace for cooling, and the materials are manually unloaded and packaged after they are completely cooled. In this production method, the heating time and cooling time are very long, and the waiting time is long, which leads to low production efficiency and cannot meet production requirements. Summary of the invention

[0003] The object of the present invention is to provide a lithium battery material high temperature reaction continuous production equipment with fully automated continuous production and high production efficiency.

[0004] In order to achieve the above-mentioned purpose, the lithium battery material high-temperature reaction continuous production equipment provided by the present invention includes a feeding device, a rotary heating reaction device, a rotary cooling device and a transfer device, the feeding device, the rotary heating reaction device and the rotary cooling device are arranged in sequence, and the transfer device is respectively connected between the feeding device and the rotary heating reaction device and between the rotary heating reaction device and the rotary cooling device; the rotary heating reaction device includes a heating furnace body, a rotary drum, a heating device and a driving mechanism, the heating furnace body is divided into at least two mutually insulated heating zones, the rotary drum is rotatably arranged in the heating furnace body around its own central axis and passes through each of the heating zones, the driving mechanism drives the rotary drum to rotate, and the heating device is respectively arranged in each of the heating zones to heat the rotary drum in sections.

[0005] Compared with the prior art, the present invention provides the feeding device, the rotary heating reaction device and the rotary cooling device, and then connects these devices with the adapter device, so that the present invention can realize automatic feeding, automatic heating reaction and automatic cooling, and the whole process is fully automated. In addition, by dividing the heating furnace into at least two heating zones, and each adjacent heating zone is insulated from each other, so that the rotary drum passes through each heating zone, so that the heating device on each heating zone can heat the rotary drum located in each heating zone with different heating temperatures. Therefore, in the process of the rotary drum rotating and feeding, the heating device can gradually heat and raise the temperature of the material along the conveying direction of the material. Since the material is stirred and tumbled at the same time during the conveying process, the material is not only stirred very evenly, but also heated quickly, and the heating time is short, so that the material can be fed, heated and reacted continuously, and the rotary cooling device can cool continuously, achieving the purpose of continuous production and greatly improving the production efficiency.

[0006] Preferably, the number of the rotary heating reaction devices is at least two, and the two rotary heating reaction devices are connected by the adapter device. By dividing the heating reaction into two rotary heating reaction devices, a low-temperature reaction section and a high-temperature reaction section are formed for the material, so that the material can be gradually heated and heated, so that the material can be fully heated and reacted, thereby improving the quality of production.

[0007] Preferably, the heating furnace body includes a first furnace body and a second furnace body combined with the first furnace body, and the combined surface between the first furnace body and the second furnace body passes through the central axis of the heating furnace body and is arranged in the vertical direction. In this way, the first furnace body and the second furnace body can be combined with each other in the horizontal direction or disassembled and separated from each other, so that the rotary drum can be directly lifted from the heating furnace body, which is very convenient for installation and disassembly, and improves the convenience of maintenance.

[0008] Preferably, a separation ring is provided in the heating furnace body, the separation ring is sleeved outside the rotary drum and supports the rotary drum, and the separation ring separates the interior of the heated furnace body to form the heating zone. The separation ring can be used to separate the heating furnace body into multiple temperature zones, thereby preventing the temperature from being mixed between the heating zones, improving the temperature control accuracy of each heating zone, and thus ensuring the quality of the material heating reaction.

[0009] Specifically, a connecting device is provided between the first furnace body and the second furnace body to combine and fix the two. The connecting device can prevent the first furnace body and the second furnace body from being accidentally separated, and effectively improve the stability and safety of use.

[0010] Specifically, the bottom surfaces of the first furnace body and the second furnace body are both provided with a moving mechanism, by which the first furnace body and the second furnace body can be easily and quickly separated and removed, or quickly assembled after being combined, thereby improving the convenience of assembly.

[0011] Preferably, the rotary drum comprises a drum and blades arranged on the inner wall of the drum, the blades are evenly distributed in the circumferential direction around the central axis of the drum to form a blade group, and a plurality of the blade groups are continuously arranged along the extension direction of the central axis of the drum. In this way, the rotary drum can continuously feed materials and avoid part of the materials from staying inside the rotary drum. By arranging the blades along the circumference of the drum, the rotary drum has a plurality of blade groups in the circumferential direction, and these blade groups are continuously arranged along the central axis direction of the drum, so that the blades form a fan blade in the circumferential direction of the drum to drive the materials forward, so that the materials move forward. At the same time, the blades of each blade group form a spiral structure along the central axis direction of the drum, so that the materials can be continuously pushed to achieve the purpose of continuous feeding. In addition, by arranging the blades in this way, the materials can be uniformly stirred and the materials can be slowly conveyed when the rotary drum rotates forward, meeting the requirements of process production, and the rotary drum can be reversely rotated at a specific time to quickly clean out the residual materials, thereby improving the convenience of maintenance.

[0012] Specifically, the blades of the latter blade group are staggered relative to the blades of the former blade group, and the staggered direction is clockwise or counterclockwise, so that the blades can be moved forward slowly and the material can be stirred more evenly, thereby improving the quality of material production.

[0013] Specifically, the blade is a flat square structure, and the angle formed by the plane where the blade side is located and the plane where the radial cross section of the cylinder is located is an acute angle; the central axis of the blade along the width extension direction intersects the central axis of the cylinder at right angles.

[0014] Preferably, the rotary cooling device includes a base, a cylinder, a driving assembly, a water inlet channel and a water outlet channel. The cylinder is rotatably arranged on the base around its own central axis. The driving assembly drives the cylinder to rotate. The water inlet channel enters the interior of the cylinder from the discharge end of the cylinder and extends to the feed end of the cylinder. The water outlet channel is arranged on the outer wall of the cylinder and extends from the feed end of the cylinder to the discharge end of the cylinder. The outlet of the water inlet channel is connected with the inlet of the water outlet channel. By arranging the water inlet channel on the inner side of the cylinder, the water inlet channel flows in the reverse direction along the feeding direction of the cylinder, so that the cooling water can fully contact with the material, thereby maximizing the heat exchange; and by arranging the water outlet channel on the outer side of the cylinder, the cooling water can cool the material for a second time, thereby maximizing the use of the cooling water, greatly improving the cooling efficiency, shortening the cooling time, and thereby improving the production efficiency.

[0015] Specifically, the rotary cooling device also includes an outlet assembly arranged at the discharge end of the cylinder, the outlet assembly has an inner tube and an outer tube sleeved outside the inner tube, the inner tube, the outer tube and the cylinder are coaxially arranged, and the inlet of the water inlet channel is connected to the inner tube, and the outlet of the water outlet channel is connected to the outer tube.

[0016] Specifically, the rotary cooling device further comprises a rotary joint arranged on the seat body, one end of the rotary joint has a water inlet and a water outlet, the outlet assembly is rotatably connected to the rotary joint, and the inner tube is connected to the water inlet, and the outer tube is connected to the water outlet. Since the cylinder body is in rotational motion, and the water inlet and the water outlet connected to the water inlet channel and the water outlet channel are fixed, therefore, by setting the rotary joint, the rotation of the cylinder body is not affected, and cooling water can be continuously provided to the cylinder body, continuous cooling is achieved, and stable operation of the entire rotary cooling device is ensured.

[0017] Preferably, sealing components are provided between the rotary heating reaction device and the adapter device, and between the rotary cooling device and the adapter device. Since the feed ends of the rotary heating reaction device and the rotary cooling device rotate, while the discharge end of the adapter device is stationary, a gap will be generated at the joint between the two, thereby leaking heat. Therefore, the provision of the sealing components can not only ensure the respective motion states of the two, but also make the connection and sealing effect of the two better.

[0018] Specifically, the sealing component includes a sealing body, a spacer, a first sealing ring and a second sealing ring. The sealing body is a cylindrical structure with two ends through. The first sealing ring, the spacer and the second sealing ring are sequentially arranged in the sealing body. The spacer is located between the first sealing ring and the second sealing ring, so that a chamber that can be filled with protective gas is formed between the first sealing ring and the second sealing ring. By arranging the spacer in the sealing body, the spacer can limit the first sealing ring and the second sealing ring to prevent the first sealing ring and the second sealing ring from shifting and causing the sealing to fail, and can also separate the first sealing ring and the second sealing ring to form two seals, thereby improving the sealing effect. In addition, the spacer can form a chamber between the first sealing ring and the second sealing ring, and the chamber is airtight and can be filled with protective gas, thereby generating a certain air pressure. Since the internal temperature of the adapter, the rotary heating reaction device and the rotary cooling device is high and there is positive pressure, the first sealing ring and the second sealing ring are easily oxidized under high temperature conditions, and one side is prone to leak when subjected to positive pressure. Therefore, the air pressure on both sides of the first sealing ring and the second sealing ring is balanced by the air pressure of the chamber, thereby improving the sealing performance of the first sealing ring and the second sealing ring, thereby improving the overall sealing effect of the sealing component.

[0019] Specifically, a third sealing ring is provided at one end of the sealing body close to the first sealing ring, so that the contact surfaces between the rotary heating reaction device and the adapter device and between the rotary cooling device and the adapter device can also be sealed, further improving the sealing performance.

[0020] Specifically, a sealing clamping device capable of adjusting the tightness of the sealing is provided at one end of the sealing body close to the second sealing ring, and the sealing clamping device is pressed against the second sealing ring. The sealing clamping device can clamp the first sealing ring and the second sealing ring to prevent them from being separated from the sealing body, thereby ensuring the structural stability and reliability of the sealing component.

[0021] Specifically, the number of the first sealing ring and / or the second sealing ring is two or more, and they are arranged in sequence along the central axis direction of the sealing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0023] Figure 2 It is a side view of the high temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0024] Figure 3It is a stereoscopic diagram of a rotary heating reaction device of the lithium battery material high temperature reaction continuous production equipment of the present invention.

[0025] Figure 4 It is a cross-sectional view of a rotary heating reaction device of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0026] Figure 5 It is a three-dimensional diagram of the heating furnace body of the rotary heating reaction device of the present invention.

[0027] Figure 6 It is an axial cross-sectional view of the heating furnace body of the rotary heating reaction device of the present invention.

[0028] Figure 7 It is a radial cross-sectional view of the heating furnace body of the rotary heating reaction device of the present invention.

[0029] Figure 8 It is a three-dimensional view of the second furnace body of the heating furnace body of the rotary heating reaction device of the present invention.

[0030] Fig. 9 It is a three-dimensional view of the rotary drum of the rotary heating reaction device of the present invention.

[0031] Fig.10 It is an axial cross-sectional view of the rotary drum of the rotary heating reaction device of the present invention.

[0032] Fig.11 It is a radial cross-sectional view of the rotary drum of the rotary heating reaction device of the present invention.

[0033] Fig.12 It is a cross-sectional view of the rotary cooling device of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0034] Fig.13 It is a side view of the rotary cooling device of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0035] Fig.14 yes Figure 4 Enlarged view of part A.

[0036] Fig.15 It is a stereoscopic diagram of the sealing components of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention.

[0037] Fig.16 It is an axial cross-sectional view of the sealing component of the high-temperature reaction continuous production equipment of lithium battery materials of the present invention. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figure 1 to Figure 2 As shown, the lithium battery material high temperature reaction continuous production equipment 100 of the present invention includes a feeding device 1, a rotary heating reaction device 2, a rotary cooling device 3 and a transfer device 4. The feeding device 1, the rotary heating reaction device 2 and the rotary cooling device 3 are arranged in sequence, and the transfer device 4 is respectively connected between the feeding device 1 and the rotary heating reaction device 2 and between the rotary heating reaction device 2 and the rotary cooling device 3. The feeding device 1 is a kind of elevator, which lifts the material, and then pours the material into the hopper to be transported to the transfer device 4. The transfer device 4 has a screw inside, and the screw is driven by a motor to rotate to push the material forward. The number of the rotary heating reaction devices 2 is at least two, and the number of the rotary heating reaction devices 2 of the present invention is two, and the two rotary heating reaction devices 2 are connected by the transfer device 4. By dividing into two rotary heating reaction devices 2 for heating reaction, a low-temperature reaction section and a high-temperature reaction section are formed for the material. The former rotary heating reaction device 2 can heat the material to above 500 degrees Celsius, and the latter rotary heating reaction device 2 can heat the material to above 1000 degrees Celsius. The material can be gradually heated and the material can be fully heated and reacted, thereby improving the quality of production.

[0040] See also Figure 3 , Figure 4 and Figure 6 The rotary heating reaction device 2 includes a heating furnace body 21, a rotary drum 22, a heating device 23 and a driving mechanism 24. The heating furnace body 21 is divided into at least two mutually insulated heating zones 21a. The rotary drum 22 is rotatably arranged in the heating furnace body 21 around its own central axis and passes through each of the heating zones 21a. One end of the rotary drum 22 has an inlet for introducing the material of the transfer device 4, and the other end has an outlet for discharging the material. The driving mechanism 24 drives the rotary drum 22 to rotate. The driving mechanism 24 is in the form of a motor-driven gear, so that the gear drives the rotary drum 22 to rotate. The heating device 23 is respectively arranged in each of the heating zones 21a to heat the rotary drum 22 in sections.

[0041] Please refer to Figures 5 to 8The heating furnace body 21 includes a first furnace body 211 and a second furnace body 212 combined with the first furnace body 211. The combined surface between the first furnace body 211 and the second furnace body 212 passes through the central axis of the heating furnace body 21 and extends in the vertical direction. In this way, the first furnace body 211 and the second furnace body 212 can be close to each other and combined or disassembled and separated in the horizontal direction, so that the rotary drum 22 can be directly lifted from the heating furnace body 21, and the installation and disassembly are very convenient, which improves the convenience of maintenance. A connecting device 214 is provided between the first furnace body 211 and the second furnace body 212 to combine and fix the two. The connecting device 214 is arranged above, below and at both ends of the first furnace body 211 and the second furnace body 212. The connecting device 214 can prevent the first furnace body 211 and the second furnace body 212 from being accidentally separated, effectively improving the stability and safety of use. The bottom surfaces of the first furnace body 211 and the second furnace body 212 are both provided with a moving mechanism 215. The moving mechanism 215 can be used to easily and quickly separate and remove the first furnace body 211 and the second furnace body 212 or quickly assemble the first furnace body 211 and the second furnace body 212 after merging them, thereby improving the convenience of assembly. The moving mechanism 215 in the present application is a roller.

[0042] Please refer to Figures 6 to 8 , a separator ring 213 is provided in the heating furnace body 21, and the separator ring 213 is sleeved outside the rotating drum 22 and supports the rotating drum 22. The separator ring 213 is welded and fixed to the inner wall of the heating furnace body 21, and the separator ring 213 divides the interior of the heating furnace body 21 to form the heating zone 21a. The present application is provided with four separator rings 213, which divide the interior of the heating furnace body 21 into five heating zones 21a on average. By using the separator rings 213, the heating furnace body 21 can be divided into multiple temperature zones, thereby preventing the temperature from being mixed between the heating zones 21a, improving the control accuracy of the temperature of each heating zone 21a, and thus ensuring the quality of the material heating reaction. The side wall of the separator ring 213 is provided with a heat insulation layer. By using the heat insulation layer, the temperature of each heating zone 21a can be further prevented from being mixed, thereby improving the accuracy of temperature control.

[0043] Please see again Figure 6 and Figure 8, there is a certain gap between the outer wall surface of the rotary drum 22 and the inner wall surface of the heating furnace body 21. In this way, space can be reserved to accommodate the heating device 23, making the structure of the heating furnace body 21 more compact. The heating device 23 is arranged on the lower half of the inner wall surface of the heating furnace body 21. That is, the lower half of the first furnace body 211 and the lower half of the second furnace body 212 are both provided with the heating device 23. By heating the rotary drum 22 from the bottom to the top, the heat is radiated upward, and the gas with higher temperature rises from the bottom to the top, so that the heating furnace body 21 can be heated more evenly, the heat utilization rate is high, and the energy consumption is effectively reduced.

[0044] like Figures 9 to 11 As shown, the rotary drum 22 includes a cylinder 221 and blades 222 arranged on the inner wall of the cylinder 221. The blades 222 are evenly distributed in the circumferential direction around the central axis of the cylinder 221 to form a blade group 223. A plurality of blade groups 223 are continuously arranged along the extension direction of the central axis of the cylinder 221. In this way, the rotary drum 22 can continuously feed materials and prevent part of the materials from staying inside the rotary drum 22. By arranging the blades 222 along the circumference of the cylinder 221, the rotary drum 22 has a plurality of blade groups 223 in the circumferential direction, and these blade groups 223 are continuously arranged along the central axis direction of the cylinder 221, so that the blades 222 form a fan blade in the circumferential direction of the cylinder 221 to drive the materials forward, thereby realizing the forward movement of the materials. Of course, the blade groups 223 can also be arranged in an overlapping form. At the same time, the blades 222 of each blade group 223 form a spiral structure along the central axis direction of the cylinder 221, so that the material can be pushed continuously to achieve the purpose of continuous feeding. In addition, by arranging the blades 222 in this way, the material can be uniformly stirred and the material can be slowly conveyed when the rotary drum 22 rotates forward, meeting the requirements of process production, and the rotary drum 22 can be reversely rotated at a specific time to quickly clean out the remaining material, thereby improving the convenience of maintenance.

[0045] like Fig. 9 and Fig.10 As shown, the blades 222 of the latter blade set 223 are staggered relative to the blades 222 of the former blade set 223, and the staggered direction is clockwise or counterclockwise. In this way, the blades 222 can be slowly moved forward and the material can be stirred more evenly, thereby improving the quality of material production.

[0046] The blade 222 has a flat square structure, and the angle formed by the plane where the side of the blade 222 is located and the plane where the radial section of the cylinder 221 is located is an acute angle; the acute angle ranges from 55 degrees to 80 degrees; the central axis of the blade 222 along the width extension direction intersects the central axis of the cylinder 221 at right angles.

[0047] See also Fig.12 and Fig.13 The rotary cooling device 3 includes a base 31, a cylinder 32, a driving assembly 33, a water inlet channel 34 and a water outlet channel 35. The cylinder 32 is rotatably arranged on the base 31 around its own central axis, and the driving assembly 33 drives the cylinder 32 to rotate. The inner wall of the cylinder 32 is provided with blades to drive the material to flip and move forward. The water inlet channel 34 enters the interior of the cylinder 32 from the discharge end of the cylinder 32 and extends to the feed end of the cylinder 32. The water inlet channel 34 is coaxially arranged with the cylinder 32. The water outlet channel 35 is arranged on the outer side wall of the cylinder 32 and extends from the feed end of the cylinder 32 to the discharge end of the cylinder 32. The outlet of the water inlet channel 34 is connected with the inlet of the water outlet channel 35. By arranging a water inlet channel 34 on the inner side of the cylinder 32, the water inlet channel 34 flows in the opposite direction of the material conveying direction of the cylinder 32, so that the cooling water can fully contact with the material, thereby maximizing the heat exchange; and by arranging a water outlet channel 35 on the outer side of the cylinder 32, the cooling water can cool the material for a second time, thereby maximizing the use of the cooling water, greatly improving the cooling efficiency, shortening the cooling time, and thus improving the production efficiency.

[0048] For example Fig.12As shown, the rotary cooling device 3 also includes an outlet assembly 36 disposed at the discharge end of the barrel 32, the outlet assembly 36 having an inner tube and an outer tube sleeved outside the inner tube, the inner tube, the outer tube and the barrel 32 are coaxially disposed, and the inlet of the water inlet channel 34 is connected to the inner tube, the water outlet channel 35 is bent from the edge of the barrel 32 and extends toward the center of the discharge end of the barrel 32, and the outlet of the water outlet channel 35 is connected to the outer tube. The rotary cooling device 3 also includes a rotary joint 37 disposed on the seat 31, one end of the rotary joint 37 has a water inlet 371 and a water outlet 372, the outlet assembly 36 is rotatably connected to the rotary joint 37, and the inner tube is connected to the water inlet 371, and the outer tube is connected to the water outlet 372. Since the cylinder 32 is in rotational motion, and the water inlet 371 and the water outlet 372 connected to the water inlet channel 34 and the water outlet channel 35 are fixed, the rotary joint 37 is provided, which not only does not affect the rotation of the cylinder 32, but also can continuously provide cooling water to the cylinder 32, thereby achieving continuous cooling and ensuring the stable operation of the entire rotary cooling device 3.

[0049] A water receiving tray 38 is provided below the connection between the outlet assembly 36 and the rotary joint 37. The water receiving tray 38 can prevent water leakage at the connection between the outlet assembly 36 and the rotary joint 37, thereby ensuring a clean and tidy surrounding environment.

[0050] For example Fig.13 As shown, the driving assembly 33 includes a motor 331, a chain 332 and a sprocket 333, the sprocket 333 is fixedly sleeved on the outer wall of the cylinder 32, the motor 331 is arranged on the seat 31, and the chain 332 is wound between the sprocket 333 and the output end of the motor 331.

[0051] For example Fig.12 and Fig.13As shown, the rotary cooling device 3 also includes a support wheel assembly 39, and the support wheel assembly 39 includes an annular guide rail 391, a support wheel 392 and a guide wheel 393. The support wheel 392 is pivotally connected to the seat body 31 and is located at the lower side of the cylinder 32. The central axis of the support wheel 392 is parallel to the central axis of the cylinder 32. The annular guide rail 391 is fixedly sleeved on the outer wall of the cylinder 32. The annular guide rail 391 is supported on the support wheel 392 and the surface is in rolling contact with the support wheel 392. Since the cylinder 32 of the rotary cooling device 3 is relatively long, a large support force is required at both ends of the cylinder 32, and the middle of the cylinder 32 is easily deformed due to the influence of gravity. Therefore, by using the support wheel assembly 39 to support the cylinder 32, the cylinder 32 can be supported at both ends and in the middle, ensuring that the cylinder 32 will not be deformed, thereby improving the stability of the structure. The guide wheel 393 is pivotally connected to the seat body 31 and is in rolling contact with the side of the annular guide rail 391. The guide wheel 393 is provided to prevent the cylinder body 32 from shifting along the axial direction, thereby ensuring that the cylinder body 32 is more stable during rotation.

[0052] See also Figure 4 and Fig.14 A sealing component 5 is provided between the rotary heating reaction device 2 and the adapter device 4 and between the rotary cooling device 3 and the adapter device 4. Since the feed ends of the rotary heating reaction device 2 and the rotary cooling device 3 rotate, and the discharge end of the adapter device 4 is stationary, in order to prevent the two from interfering, a gap will be left at the joint of the two, and the gap will cause heat leakage. Therefore, the sealing component 5 can ensure the respective motion states of the above two and make the connection and sealing effect of the above two better.

[0053] like Fig.15 and Fig.16As shown, the sealing component 5 includes a sealing body 51, a spacer 52, a first sealing ring 53 and a second sealing ring 54. The sealing body 51 is a cylindrical structure with two ends through. The first sealing ring 53, the spacer 52 and the second sealing ring 54 are arranged in the sealing body 51 in sequence. The spacer 52 is located between the first sealing ring 53 and the second sealing ring 54, so that a chamber 56 that can be filled with protective gas is formed between the first sealing ring 53 and the second sealing ring 54. The spacer 52 is an annular structure, and the cross section is an I-shaped structure. The spacer 52 is fixed to the inner wall of the sealing body 51 through a connecting member. By arranging the spacer 52 in the sealing body 51, the spacer 52 can not only limit the first sealing ring 53 and the second sealing ring 54 to prevent the first sealing ring 53 and the second sealing ring 54 from shifting and causing the sealing to fail, but also separate the first sealing ring 53 and the second sealing ring 54 to form two seals, thereby improving the sealing effect. In addition, the isolation member 52 can form a chamber 56 between the first sealing ring 53 and the second sealing ring 54. The chamber 56 is airtight and can be filled with protective gas, thereby generating a certain air pressure to form a gas seal. Since the internal temperature of the adapter 4, the rotary heating reaction device 2 and the rotary cooling device 3 is high and there is a positive pressure, the first sealing ring 53 and the second sealing ring 54 are easily oxidized under high temperature conditions, and one side is prone to leaking when subjected to positive pressure. Therefore, the air pressure on both sides of the first sealing ring 53 and the second sealing ring 54 is balanced by the air pressure of the chamber 56, thereby improving the sealing performance of the first sealing ring 53 and the second sealing ring 54, thereby improving the overall sealing effect of the sealing component 5.

[0054] For example Fig.16 As shown, a third sealing ring 55 is provided at one end of the sealing body 51 close to the first sealing ring 53. In this way, the contact surfaces between the rotary heating reaction device 2 and the adapter 4 and between the rotary cooling device 3 and the adapter 4 can also be sealed, further improving the sealing performance.

[0055] Please see again Fig.14 and Fig.16, a sealing clamping device 57 capable of adjusting the tightness of the seal is provided at one end of the sealing body 51 close to the second sealing ring 54, and the sealing clamping device 57 is pressed against the second sealing ring 54. The sealing clamping device 57 can clamp the first sealing ring 53 and the second sealing ring 54 to prevent the two from being separated from the sealing body 51, thereby ensuring the structural stability and reliability of the sealing component 5. Specifically, the sealing clamping device 57 is a circular structure with a connecting ear 571 extending from the edge, and the sealing body 51 extends a connecting portion 511, and the connecting ear 571 is connected to the connecting portion 511 through a connecting piece. The connecting piece is a bolt and nut connection structure, and the position of the sealing clamping device 57 relative to the sealing body 51 is adjusted by adjusting the distance that the bolt is screwed into the nut, thereby adjusting the pressure of the sealing clamping device 57 against the second sealing ring 54, thereby achieving the purpose of adjusting the tightness of the seal.

[0056] Please see again Fig.14 and Fig.16 The number of the first sealing rings 53 is two or more, and in this application, there are two, and the first sealing rings 53 are arranged in sequence along the central axis direction of the sealing body 51. The number of the second sealing rings 54 is two or more, and in this application, there are also two, and the second sealing rings 54 are arranged in sequence along the central axis direction of the sealing body 51.

[0057] In summary, the production process of the high temperature reaction continuous production equipment 100 of lithium battery materials of the present invention is described in detail as follows:

[0058] First, the feeding device 1 feeds the material, and the transfer device 4 rotates to push the material forward to enter the rotary drum 22 of the rotary heating reaction device 2. At this time, the driving mechanism 24 drives the rotary drum 22 to rotate, and the heating device 23 in each heating zone 21a generates heat to heat the respective heating zone 21a. The temperature to be maintained in each heating zone 21a is different, but the temperature of each heating zone 21a increases successively along the conveying direction, so that the temperature of the material can be increased to more than 500 degrees Celsius after passing through the previous rotary heating reaction device 2, and the temperature can be increased to more than 1000 degrees Celsius after passing through the next rotary heating reaction device 2. While heating, the blades 222 in the rotary drum 22 stir the material as the cylinder 221 rotates, and push the material to move forward slowly. In this process, the material fully undergoes a high-temperature reaction.

[0059] When the material is transferred from the rotary heating reaction device 2 to the rotary cooling device 3, the material reaction is completed. The rotary cooling device 3 starts to cool the material. At this time, the driving assembly 33 drives the cylinder 32 to rotate, and the blades in the cylinder 32 stir the material while driving the material to buffer and move forward. At the same time, the cooling water enters the water inlet channel 34 from the water inlet 371 through the rotary joint 37, and when it flows to the other end of the cylinder 32, it flows back from the water outlet channel 35, and finally flows out from the water outlet 372. In this process, the cooling water fully contacts the material to achieve heat exchange. Finally, after the material is cooled, it can be discharged from the discharge end of the cylinder 32 and discharged to the next process through the unloading device.

[0060] Compared with the prior art, the present invention provides the feeding device 1, the rotary heating reaction device 2 and the rotary cooling device 3, and then connects these devices with the adapter device 4, so that the present invention can realize automatic feeding, automatic heating reaction and automatic cooling, and the whole process is fully automated. In addition, by dividing the heating furnace body 21 into at least two heating zones 21a, and each adjacent heating zone 21a is insulated from each other, so that the rotary drum 22 passes through each heating zone 21a, so that the heating device 23 on each heating zone 21a can heat the rotary drum 22 located in each heating zone 21a with different heating temperatures. Therefore, in the process of the rotary drum 22 rotating and feeding, the heating device 23 can gradually heat and raise the temperature of the material along the conveying direction of the material. Since the material is stirred and tumbled at the same time during the conveying process, the material is not only stirred very evenly, but also heated quickly and the heating time is short, so that the material can be continuously fed, heated and reacted, and the rotary cooling device 3 can continuously cool, so as to achieve the purpose of continuous production and greatly improve the production efficiency.

[0061] 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 high temperature reaction continuous production equipment, characterized in that: The invention comprises a feeding device, a rotary heating reaction device, a rotary cooling device and a transfer device, wherein the feeding device, the rotary heating reaction device and the rotary cooling device are arranged in sequence, and the transfer device is respectively connected between the feeding device and the rotary heating reaction device and between the rotary heating reaction device and the rotary cooling device; the rotary heating reaction device comprises a heating furnace body, a rotary roller, a heating device and a driving mechanism, the heating furnace body is divided into at least two mutually insulated heating zones, the rotary roller is rotatably arranged in the heating furnace body around its own central axis and passes through each of the heating zones, the driving mechanism drives the rotary roller to rotate, and the heating device is respectively arranged in each of the heating zones to heat the rotary roller in sections; the heating furnace body comprises a first furnace body and a second furnace body merged with the first furnace body, the merging surface between the first furnace body and the second furnace body passes through the central axis of the heating furnace body and extends in the vertical direction Setting: a connecting device is provided between the first furnace body and the second furnace body to combine and fix the two together; a moving mechanism is provided on the bottom surface of the first furnace body and the second furnace body; a sealing component is provided between the rotary heating reaction device and the adapter device and between the rotary cooling device and the adapter device respectively; the sealing component comprises a sealing body, an isolating member, a first sealing ring and a second sealing ring, the sealing body is a cylindrical structure with two ends through, the first sealing ring, the isolating member and the second sealing ring are arranged in sequence in the sealing body, the isolating member is located between the first sealing ring and the second sealing ring, so that a chamber that can be filled with protective gas is formed between the first sealing ring and the second sealing ring; a third sealing ring is provided at one end of the sealing body close to the first sealing ring; a sealing clamping device with adjustable sealing tightness is provided at one end of the sealing body close to the second sealing ring, and the sealing clamping device presses against the second sealing ring.

2. The high temperature reaction continuous production equipment for lithium battery materials according to claim 1, characterized in that: The number of the rotary heating reaction devices is at least two, and the two rotary heating reaction devices are connected via the adapter device.

3. The lithium battery material high temperature reaction continuous production equipment according to claim 1, characterized in that: A separation ring is provided in the heating furnace body, the separation ring is sleeved outside the rotating drum and supports the rotating drum, and the separation ring separates the interior of the heated furnace body to form the heating zone.

4. The lithium battery material high temperature reaction continuous production equipment according to claim 1, characterized in that: The rotary drum comprises a cylinder and blades arranged on the inner wall of the cylinder. The blades are evenly distributed circumferentially around the central axis of the cylinder to form a blade group. A plurality of blade groups are continuously arranged along the extension direction of the central axis of the cylinder.

5. The high temperature reaction continuous production equipment for lithium battery materials according to claim 4, characterized in that: The blades of the latter blade group are staggered relative to the blades of the former blade group, and the staggered direction is clockwise or counterclockwise.

6. The high temperature reaction continuous production equipment for lithium battery materials according to claim 4, characterized in that: The blade is a flat square structure, and the angle formed by the plane where the side surface of the blade is located and the plane where the radial section of the cylinder is located is an acute angle; the central axis of the blade along the width extension direction intersects the central axis of the cylinder at right angles.

7. The lithium battery material high temperature reaction continuous production equipment according to claim 1, characterized in that: The rotary cooling device includes a base, a cylinder, a driving assembly, a water inlet channel and a water outlet channel. The cylinder is rotatably arranged on the base around its own central axis. The driving assembly drives the cylinder to rotate. The water inlet channel enters the interior of the cylinder from the discharge end of the cylinder and extends to the feed end of the cylinder. The water outlet channel is arranged on the outer side wall of the cylinder and extends from the feed end of the cylinder to the discharge end of the cylinder. The outlet of the water inlet channel is connected with the inlet of the water outlet channel.

8. The high temperature reaction continuous production equipment for lithium battery materials according to claim 7, characterized in that: The rotary cooling device also includes an outlet assembly arranged at the discharge end of the cylinder, the outlet assembly has an inner tube and an outer tube sleeved outside the inner tube, the inner tube, the outer tube and the cylinder are coaxially arranged, and the inlet of the water inlet channel is connected to the inner tube, and the outlet of the water outlet channel is connected to the outer tube.

9. The lithium battery material high temperature reaction continuous production equipment according to claim 8, characterized in that: The rotary cooling device also includes a rotary joint arranged on the base body, one end of the rotary joint has a water inlet and a water outlet, the outlet assembly is rotatably connected to the rotary joint, and the inner tube is connected to the water inlet, and the outer tube is connected to the water outlet.

10. The lithium battery material high temperature reaction continuous production equipment according to claim 1, characterized in that: The number of the first sealing ring and / or the second sealing ring is two or more, and they are arranged in sequence along the central axis direction of the sealing body.

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