Lithium cobalt oxide coarse crushing process

Abstract

The invention discloses a lithium cobalt oxide coarse crushing process which comprises a grinding cavity shell, a first on-off valve, a second on-off valve, a fan, an adjusting mechanism, a first grinding mechanism and a second grinding mechanism, blocky lithium cobalt oxide is conveyed to the position between the first grinding mechanism and the second grinding mechanism through a feeding pipe by opening the first on-off valve, and a mechanism motor is started to drive a rotating shaft to rotate; the rotating shaft rotates to drive the first grinding mechanism to rotate so that blocky lithium cobalt oxide can be evenly distributed between the first grinding mechanism and the second grinding mechanism, and after the blocky lithium cobalt oxide is crushed to be small in granularity, the second grinding mechanism is pushed by the air cylinder to continuously get close to the first grinding mechanism. Meanwhile, a first grinding mechanism is driven by a mechanism motor to rotate at a high speed to grind small-particle lithium cobalt oxide, the first grinding mechanism is driven by the mechanism motor to swing, powdery lithium cobalt oxide is raised through centrifugal force, a draught fan is started to extract raised lithium cobalt oxide powder, and blocky lithium cobalt oxide can be crushed and ground at the same time; and the production efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium cobalt oxide production equipment, and in particular to a lithium cobalt oxide coarse crushing process. Background Art

[0002] Lithium cobalt oxide is an inorganic compound with the chemical formula Li CoO2, which is generally used as the positive electrode material of lithium-ion batteries. It has the appearance of gray-black powder. Lithium cobalt oxide is generally prepared by low-heat solid-phase reaction method. The main feature of the process is to use high-purity and high-reactivity cobalt oxide nanopowder as raw material, and carry out high-precision metering, proportioning and mixing with lithium carbonate, and then sintering once. The sintered material is crushed once, and the crushed material is mixed and sintered twice. The secondary sintered material is ground, screened and iron-removed to obtain lithium cobalt oxide powder, the positive electrode material of lithium-ion batteries.

[0003] When lithium cobalt oxide is crushed once after sintering, its particle size needs to be less than 2 mm, and it needs to be processed by a jaw crusher, a roller mill and a rotary mill, which is not conducive to improving production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a coarse crushing process for lithium cobalt oxide, so as to solve the technical problem in the prior art that when lithium cobalt oxide is crushed once after sintering, its particle size needs to be less than 2 mm, and it needs to be processed by a jaw crusher, a roller mill and a rotary mill, which is not conducive to improving production efficiency.

[0005] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0006] A lithium cobalt oxide coarse crushing process, comprising:

[0007] Step 1: Open the on-off valve 1 to transport the block of lithium cobalt oxide to between the grinding mechanism 1 and the grinding mechanism 2 through the feed pipe, and close the on-off valve 1.

[0008] Step 2: The starter mechanism motor drives the shaft to rotate, and the rotation of the shaft drives the grinding mechanism 1 to rotate. The rotation of the grinding mechanism 1 is used to evenly distribute the blocky lithium cobalt oxide between the grinding mechanism 1 and the grinding mechanism 2.

[0009] Step 3: The cylinder drives the grinding mechanism 2 to rise and fall repeatedly to impact the blocky lithium cobalt oxide, and at the same time, the mechanism motor is started to drive the grinding mechanism 1 to rotate, so as to initially crush the blocky lithium cobalt oxide between the grinding mechanism 1 and the grinding mechanism 2.

[0010] Step 4: After the blocky lithium cobalt oxide is crushed into smaller particles, the grinding mechanism 2 is pushed by the cylinder to continuously approach the grinding mechanism 1, and at the same time, the grinding mechanism 1 is driven by the mechanism motor to rotate at a high speed to grind the small particles of lithium cobalt oxide.

[0011] Step 5: After the grinding is completed, the grinding mechanism is driven to swing by the mechanism motor, the powdered lithium cobalt oxide is lifted up by centrifugal force, and the blower is started to extract the lifted lithium cobalt oxide powder.

[0012] A lithium cobalt oxide coarse crushing device, comprising:

[0013] A grinding chamber shell, wherein a grinding chamber is provided in the grinding chamber shell, a feed pipe is fixedly connected to one side of the grinding chamber shell, and a discharge pipe is fixedly connected to the other side of the grinding chamber shell, and both the feed pipe and the discharge pipe are connected to the inside of the grinding chamber;

[0014] The adjusting mechanism comprises a mechanism mounting plate arranged horizontally, a rotating shaft is rotatably arranged on the lower end surface of the mechanism mounting plate, a mechanism motor for driving the rotating shaft to rotate is fixedly connected to the upper end surface of the mechanism mounting plate, a sleeve frame is movably sleeved on the rotating shaft, connecting frames are fixedly connected to both sides of the sleeve frame, connecting blocks are embedded and fixedly connected to the connecting frame, a cylinder for driving the sleeve frame and the connecting frame to rise and fall is fixedly connected to the mechanism mounting plate, the cylinder and the rotating shaft are both arranged through the top end of the grinding chamber shell, and the cylinder is fixedly connected to the grinding chamber shell;

[0015] A grinding mechanism, comprising a mechanism body, a rotating seat is fixedly connected to the upper end surface of the mechanism body, the rotating seat is coaxially fixedly connected to the rotating shaft, and a grinding gear ring is fixedly connected to the upper end surface of the mechanism body;

[0016] The second grinding mechanism comprises a second mechanism body, which is sleeved through the rotating shaft, the upper end surface of the second mechanism body is fixedly connected to the connecting block, the lower end surface of the second mechanism body is fixedly connected with a second grinding gear ring, the second grinding mechanism is arranged above the first grinding mechanism, and the first grinding gear ring and the second grinding gear ring are staggered.

[0017] As a further solution of the present invention: an on-off valve 1 is fixedly installed at the connection between the feed pipe and the grinding chamber, an on-off valve 2 is fixedly installed at the connection between the discharge pipe and the grinding chamber, and a fan is fixedly installed on the discharge pipe.

[0018] As a further solution of the present invention: a mechanism bearing is embedded through and fixedly connected to the mechanism mounting plate, the outer ring of the mechanism bearing is fixedly connected to the mechanism mounting plate, the rotating shaft is sleeved and fixedly connected to the inner ring of the mechanism bearing, a telescopic rod is fixedly connected to the driving end of the cylinder, and the telescopic rod is fixedly connected to the connecting block.

[0019] As a further solution of the present invention: a sleeve ring is embedded and fixedly connected to the top of the grinding chamber shell, and the rotating shaft is movably sleeved in the sleeve ring.

[0020] As a further solution of the present invention: the grinding gear ring 1 is a circular ring-shaped part, and a plurality of grinding gear rings 1 are arranged on the main body 1 of the mechanism. The diameters of the plurality of grinding gear rings 1 increase step by step, and the grinding gear rings with a small diameter are coaxially sleeved in the grinding gear ring with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 1 smoothly transition with the main body 1 of the mechanism to form a slope.

[0021] As a further solution of the present invention: the grinding gear ring 2 is a circular ring part, and a plurality of grinding gear rings 2 are arranged on the mechanism main body 2. The diameters of the plurality of grinding gear rings 2 increase step by step. The grinding gear ring 2 with a small diameter is coaxially sleeved in the grinding gear ring 2 with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 2 smoothly transition with the mechanism main body 2 to form a slope.

[0022] As a further solution of the present invention: a connecting end is fixedly connected to the upper end surface of the second mechanism body, the second mechanism body is fixedly connected to the connecting block through the connecting end, a sleeve hole is penetrated through the second mechanism body, the rotating shaft is movably sleeved in the sleeve hole, and a sleeve groove corresponding to the rotating seat is opened on the second mechanism body.

[0023] Beneficial effects of the present invention:

[0024] 1. When the present invention is in use, the block of lithium cobalt oxide is transported between the grinding mechanism 1 and the grinding mechanism 2 through the feed pipe by opening the on-off valve 1, the on-off valve 1 is closed, the mechanism motor is started to drive the rotating shaft to rotate, and the rotation of the rotating shaft drives the grinding mechanism 1 to rotate. The rotation of the grinding mechanism 1 facilitates the uniform distribution of the block of lithium cobalt oxide between the grinding mechanism 1 and the grinding mechanism 2, and facilitates the grinding mechanism 1 and the grinding mechanism 2 to crush and grind the block of lithium cobalt oxide in the later stage. After the block of lithium cobalt oxide is crushed to a smaller particle size, the grinding mechanism 2 is pushed by the cylinder to continuously approach the grinding mechanism 1, and at the same time, the grinding mechanism 1 is driven by the mechanism motor to rotate at a high speed to grind the small particles of lithium cobalt oxide. The grinding mechanism 1 is driven by the mechanism motor to swing, and the powdered lithium cobalt oxide is lifted up by centrifugal force. The blower is started to extract the lifted lithium cobalt oxide powder, and the block of lithium cobalt oxide can be crushed and ground at the same time, which is beneficial to improving production efficiency.

[0025] 2. The inner and outer end surfaces of the ring of the grinding gear ring 1 of the present invention smoothly transition to the main body 1 of the mechanism to form a slope, and the inner and outer end surfaces of the ring of the grinding gear ring 2 smoothly transition to the main body 2 of the mechanism to form a slope, which can increase the contact area between the grinding mechanism 1 and the grinding mechanism 2, which is beneficial to improving the grinding effect. At the same time, the slope set between the grinding gear ring 1 and the main body 1 is beneficial to the lifting of powdered lithium cobalt oxide, which is convenient for collecting the powdered lithium cobalt oxide after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the connection relationship between the adjustment mechanism and the grinding mechanism of the present invention;

[0029] Figure 3 The present invention is a three-dimensional structure diagram of the grinding mechanism Figure 1 ;

[0030] Figure 4 The present invention is a three-dimensional structure diagram of the grinding mechanism Figure 2 .

[0031] In the figure: 1. grinding chamber shell; 2. grinding chamber; 3. feed pipe; 4. on-off valve 1; 5. discharge pipe; 6. on-off valve 2; 7. fan; 8. adjusting mechanism; 81. mechanism mounting plate; 82. mechanism motor; 83. mechanism bearing; 84. cylinder; 85. telescopic rod; 86. connecting block; 87. socket frame; 88. connecting frame; 89. rotating shaft; 9. grinding mechanism 1; 91. mechanism body 1; 92. rotating seat; 93. grinding gear ring 1; 10. grinding mechanism 2; 101. mechanism body 2; 102. connecting end; 103. socket hole; 104. socket groove; 105. grinding gear ring 2. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 4 As shown, a device for a lithium cobalt oxide coarse crushing process comprises:

[0034] A grinding chamber shell 1, a grinding chamber 2 is provided in the grinding chamber shell 1, a feed pipe 3 is fixedly connected to one side of the grinding chamber shell 1, and a discharge pipe 5 is fixedly connected to the other side of the grinding chamber shell 1, and the feed pipe 3 and the discharge pipe 5 are both connected to the inside of the grinding chamber 2;

[0035] The adjusting mechanism 8 comprises a mechanism mounting plate 81 arranged horizontally, a rotating shaft 89 is rotatably arranged on the lower end surface of the mechanism mounting plate 81, a mechanism motor 82 for driving the rotating shaft 89 to rotate is fixedly connected to the upper end surface of the mechanism mounting plate 81, a sleeve frame 87 is movably sleeved on the rotating shaft 89, connecting frames 88 are fixedly connected on both sides of the sleeve frame 87, a connecting block 86 is embedded and fixedly connected on the connecting frame 88, a cylinder 84 for driving the sleeve frame 87 and the connecting frame 88 to rise and fall is fixedly connected to the mechanism mounting plate 81, the cylinder 84 and the rotating shaft 89 are both arranged through the top end of the grinding chamber housing 1, and the cylinder 84 is fixedly connected to the grinding chamber housing 1;

[0036] The grinding mechanism 9 comprises a mechanism body 91, a rotating seat 92 is fixedly connected to the upper end surface of the mechanism body 91, the rotating seat 92 is coaxially fixedly connected to the rotating shaft 89, and a grinding gear ring 93 is fixedly connected to the upper end surface of the mechanism body 91;

[0037] The grinding mechanism 10 includes a mechanism body 101 which is inserted through the rotating shaft 89, the upper end surface of the mechanism body 101 is fixedly connected to the connecting block 86, and a grinding gear ring 105 is fixedly connected to the lower end surface of the mechanism body 101. The grinding mechanism 10 is arranged above the grinding mechanism 9, and the grinding gear ring 93 and the grinding gear ring 105 are staggered.

[0038] In some specific embodiments, an on-off valve 4 is fixedly installed at the connection between the feed pipe 3 and the grinding chamber 2, an on-off valve 6 is fixedly installed at the connection between the discharge pipe 5 and the grinding chamber 2, and a fan 7 is fixedly installed on the discharge pipe 5.

[0039] A mechanism bearing 83 is embedded through and fixedly connected to the mechanism mounting plate 81, the outer ring of the mechanism bearing 83 is fixedly connected to the mechanism mounting plate 81, the rotating shaft 89 is sleeved on and fixedly connected to the inner ring of the mechanism bearing 83, and a telescopic rod 85 is fixedly connected to the driving end of the cylinder 84, and the telescopic rod 85 is fixedly connected to the connecting block 86.

[0040] In some specific embodiments, a sleeve ring is embedded and fixedly connected to the top of the grinding chamber housing 1, and the rotating shaft 89 is movably sleeved in the sleeve ring. The rotating shaft 89 and the sleeve ring are tightly connected via an oil seal.

[0041] The grinding gear ring 93 is a circular ring-shaped part. A plurality of grinding gear rings 93 are arranged on the mechanism main body 91. The diameters of the plurality of grinding gear rings 93 are gradually increased. The grinding gear ring 93 with a small diameter is coaxially sleeved in the grinding gear ring 93 with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 93 smoothly transition with the mechanism main body 91 to form a slope.

[0042] The grinding gear ring 105 is a circular ring-shaped part. Several grinding gear rings 105 are arranged on the mechanism main body 101. The diameters of the several grinding gear rings 105 increase step by step. The grinding gear rings 105 with a small diameter are coaxially sleeved in the grinding gear ring 105 with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 105 and the mechanism main body 101 smoothly transition to form a slope. A connecting end 102 is fixedly connected to the upper end surface of the mechanism main body 101. The mechanism main body 101 is fixedly connected to the connecting block 86 through the connecting end 102. A sleeve hole 103 is penetrated through the mechanism main body 101. The rotating shaft 89 is movably sleeved in the sleeve hole 103. The mechanism main body 101 is provided with a sleeve groove 104 corresponding to the rotating seat 92.

[0043] In some specific implementation schemes, both the on-off valve 1 4 and the on-off valve 2 6 are in a closed state.

[0044] In some specific implementation schemes, a flange ring is fixedly connected to the bottom surface of the grinding chamber shell 1, and the mechanism body 91 is movably arranged on the flange ring.

[0045] A lithium cobalt oxide coarse crushing process comprises the following steps:

[0046] Step 1: Open the on-off valve 1 4 to transport the block of lithium cobalt oxide through the feed pipe 3 to between the grinding mechanism 1 9 and the grinding mechanism 2 10, and close the on-off valve 1 4.

[0047] Step 2: The starter motor 82 drives the rotating shaft 89 to rotate. The rotation of the rotating shaft 89 drives the grinding mechanism 1 9 to rotate. The rotation of the grinding mechanism 1 9 is used to evenly distribute the blocky lithium cobalt oxide between the grinding mechanism 1 9 and the grinding mechanism 2 10 .

[0048] Step 3: The cylinder 84 drives the grinding mechanism 2 10 to rise and fall repeatedly to impact the blocky lithium cobalt oxide, and at the same time, the mechanism motor 82 is started to drive the grinding mechanism 1 9 to rotate, so as to initially crush the blocky lithium cobalt oxide between the grinding mechanism 1 9 and the grinding mechanism 2 10.

[0049] Step 4: After the blocky lithium cobalt oxide is crushed into smaller particles, the grinding mechanism 2 10 is pushed by the cylinder 84 to continuously approach the grinding mechanism 1 9, and at the same time, the mechanism motor 82 drives the grinding mechanism 1 9 to rotate at a high speed to grind the small particles of lithium cobalt oxide.

[0050] Step 5: After the grinding is completed, the grinding mechanism 9 is driven to swing by the mechanism motor 82, and the powdered lithium cobalt oxide is lifted up by centrifugal force, and the blower 7 is started to extract the lifted lithium cobalt oxide powder.

[0051] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0052] Open the on-off valve 4 to transport the block of lithium cobalt oxide to between the grinding mechanism 1 9 and the grinding mechanism 2 10 through the feed pipe 3, close the on-off valve 4, start the mechanism motor 82 to drive the rotating shaft 89 to rotate, and the rotation of the rotating shaft 89 drives the grinding mechanism 1 9 to rotate. The rotation of the grinding mechanism 1 9 facilitates the uniform distribution of the block of lithium cobalt oxide between the grinding mechanism 1 9 and the grinding mechanism 2 10, and facilitates the grinding mechanism 1 9 and the grinding mechanism 2 10 to crush and grind the block of lithium cobalt oxide in the later stage. After the block of lithium cobalt oxide is crushed to a smaller particle size, the grinding mechanism 2 10 is pushed by the cylinder 84 to continue to approach the grinding mechanism 1 9, and at the same time, the mechanism motor 82 drives the grinding mechanism 1 9 to rotate at a high speed to grind the small particles. Lithium cobalt oxide is ground, and the grinding mechanism 9 is driven to swing by the mechanism motor 82, and the powdered lithium cobalt oxide is lifted up by centrifugal force, and the blower 7 is started to extract the lifted lithium cobalt oxide powder. The inner and outer end surfaces of the circular ring of the grinding gear ring 93 and the mechanism body 91 smoothly transition to form a slope, and the inner and outer end surfaces of the circular ring of the grinding gear ring 2 105 and the mechanism body 2 101 smoothly transition to form a slope, which can increase the contact area between the grinding mechanism 9 and the grinding mechanism 2 10, which is beneficial to improving the grinding effect. At the same time, the slope set between the grinding gear ring 1 93 and the mechanism body 1 91 is beneficial to lifting the powdered lithium cobalt oxide, which is convenient for collecting the powdered lithium cobalt oxide after grinding.

[0053] Several embodiments of the present invention are described in detail above, but the embodiments of the present invention are not limited thereto and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A lithium cobalt oxide coarse crushing process, characterized in that: The steps include: S1: Open the on-off valve 1 (4) to transport the block of lithium cobalt oxide through the feed pipe (3) to between the grinding mechanism 1 (9) and the grinding mechanism 2 (10), and close the on-off valve 1 (4); S2: The starting mechanism motor (82) drives the rotating shaft (89) to rotate, and the rotation of the rotating shaft (89) drives the first grinding mechanism (9) to rotate, and the rotation of the first grinding mechanism (9) is used to evenly distribute the blocky lithium cobalt oxide between the first grinding mechanism (9) and the second grinding mechanism (10); S3: The cylinder (84) drives the grinding mechanism (10) to rise and fall repeatedly to impact the blocky lithium cobalt oxide, and at the same time, the mechanism motor (82) is started to drive the grinding mechanism (9) to rotate, so as to initially crush the blocky lithium cobalt oxide between the grinding mechanism (9) and the grinding mechanism (10); S4: After the blocky lithium cobalt oxide is crushed into smaller particles, the second grinding mechanism (10) is pushed by the cylinder (84) to continuously approach the first grinding mechanism (9), and at the same time, the mechanism motor (82) drives the first grinding mechanism (9) to rotate at a high speed to grind the small particles of lithium cobalt oxide; S5: After the grinding is completed, the grinding mechanism (9) is driven to swing by the mechanism motor (82), and the powdered lithium cobalt oxide is lifted up by centrifugal force, and the blower (7) is started to extract the lifted lithium cobalt oxide powder.

2. The device for the coarse crushing process of lithium cobalt oxide according to claim 1, characterized in that: include: A grinding chamber shell (1), wherein a grinding chamber (2) is provided in the grinding chamber shell (1), a feed pipe (3) is fixedly connected to one side of the grinding chamber shell (1), and a discharge pipe (5) is fixedly connected to the other side of the grinding chamber shell (1), and both the feed pipe (3) and the discharge pipe (5) are in communication with the interior of the grinding chamber (2); The adjusting mechanism (8) comprises a mechanism mounting plate (81) arranged horizontally, a rotating shaft (89) being rotatably arranged on the lower end surface of the mechanism mounting plate (81), a mechanism motor (82) being fixedly connected to the upper end surface of the mechanism mounting plate (81) for driving the rotating shaft (89) to rotate, a sleeve frame (87) being movably sleeved on the rotating shaft (89), connecting frames (88) being fixedly connected to both sides of the sleeve frame (87), a connecting block (86) being embedded and fixedly connected to the connecting frame (88), a cylinder (84) being fixedly connected to the mechanism mounting plate (81) for driving the sleeve frame (87) and the connecting frame (88) to rise and fall, the cylinder (84) and the rotating shaft (89) both being arranged to pass through the top end of the grinding chamber housing (1), and the cylinder (84) being fixedly connected to the grinding chamber housing (1); A grinding mechanism (9) comprises a mechanism body (91), a rotating seat (92) is fixedly connected to the upper end surface of the mechanism body (91), the rotating seat (92) is coaxially fixedly connected to the rotating shaft (89), and a grinding gear ring (93) is fixedly connected to the upper end surface of the mechanism body (91); The second grinding mechanism (10) comprises a second mechanism body (101), which is sleeved through the rotating shaft (89), the upper end surface of the second mechanism body (101) is fixedly connected to the connecting block (86), and the lower end surface of the second mechanism body (101) is fixedly connected to a second grinding gear ring (105). The second grinding mechanism (10) is arranged above the first grinding mechanism (9), and the first grinding gear ring (93) and the second grinding gear ring (105) are arranged alternately.

3. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: A first on-off valve (4) is fixedly installed at the connection between the feed pipe (3) and the grinding chamber (2), a second on-off valve (6) is fixedly installed at the connection between the discharge pipe (5) and the grinding chamber (2), and a fan (7) is fixedly installed on the discharge pipe (5).

4. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: A mechanism bearing (83) is embedded and fixedly connected to the mechanism mounting plate (81), the outer ring of the mechanism bearing (83) is fixedly connected to the mechanism mounting plate (81), the rotating shaft (89) is sleeved and fixedly connected to the inner ring of the mechanism bearing (83), the driving end of the cylinder (84) is fixedly connected to a telescopic rod (85), and the telescopic rod (85) is fixedly connected to a connecting block (86).

5. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: A sleeve ring is embedded and fixedly connected to the top of the grinding chamber shell (1), and the rotating shaft (89) is movably sleeved in the sleeve ring.

6. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: The grinding gear ring 1 (93) is a circular ring-shaped part. A plurality of grinding gear rings 1 (93) are arranged on the mechanism main body 1 (91). The diameters of the plurality of grinding gear rings 1 (93) are gradually increased. The grinding gear ring 1 (93) with a small diameter is coaxially sleeved in the grinding gear ring 1 (93) with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 1 (93) smoothly transition with the mechanism main body 1 (91) to form a slope.

7. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: The grinding gear ring 2 (105) is a circular ring-shaped part. A plurality of grinding gear rings 2 (105) are arranged on the mechanism main body 2 (101). The diameters of the plurality of grinding gear rings 2 (105) are gradually increased. The grinding gear ring 2 (105) with a small diameter is coaxially sleeved in the grinding gear ring 2 (105) with a large diameter. The inner and outer end surfaces of the circular ring of the grinding gear ring 2 (105) smoothly transition with the mechanism main body 2 (101) to form a slope.

8. The device for the coarse crushing process of lithium cobalt oxide according to claim 2, characterized in that: A connecting end (102) is fixedly connected to the upper end surface of the second mechanism body (101), and the second mechanism body (101) is fixedly connected to the connecting block (86) through the connecting end (102). A sleeve hole (103) is provided through the second mechanism body (101), and the rotating shaft (89) is movably sleeved in the sleeve hole (103). The second mechanism body (101) is provided with a sleeve groove (104) corresponding to the rotating seat (92).

Images