Lithium iron phosphate slurry stirring system

Abstract

Provided in the present application is a lithium iron phosphate slurry stirring system, comprising: a first dispersing system formed by a first feeding mechanism, a second feeding mechanism, a first stirring tank, a homogenizing pump and a first demagnetizer; and a second dispersing system formed by a second stirring tank, a driving pump, a second demagnetizer, a heat exchanger and a grinding device, wherein the first stirring tank is further in communication connection with a remote controller; and the remote controller is configured to send a first control instruction to the first stirring tank at a first time earlier than a second time, and to send a second control instruction to the first stirring tank at the second time, the first control instruction being configured to control the stirring rate of the first stirring tank to be higher than a preset rate threshold value, and the second control instruction being configured to control the stirring rate of the first stirring tank to be lower than or equal to the preset rate threshold value. Thus, the efficiency of the lithium iron phosphate slurry stirring system and the slurry performance are improved.

Description

Lithium iron phosphate slurry mixing system Technical Field

[0001] The present application relates to, but is not limited to, a lithium iron phosphate slurry stirring system. Background Art

[0002] With the development of new energy technologies, research on battery material production equipment has become a hot topic. Lithium iron phosphate (LIFP) slurry mixing systems are used to dissolve and further grind LFP raw materials and solvents in a mixing tank, producing a slurry with small and uniform particle size distribution. Therefore, improving the efficiency of LFP slurry mixing systems is a key technical challenge that needs to be overcome. Summary of the Invention

[0003] Some embodiments of the present application provide a lithium iron phosphate slurry stirring system, which can improve the efficiency of the lithium iron phosphate slurry stirring system and enhance the slurry performance.

[0004] An embodiment of the present application provides a lithium iron phosphate slurry stirring system, comprising: a first feeding mechanism, a second feeding mechanism, a first stirring tank, a homogenizing pump, a first demagnetizer, a second stirring tank, a driving pump, a second demagnetizer, a heat exchanger, and a grinding device;

[0005] The discharge port of the first feeding mechanism is connected to the first feed port of the first stirring tank, the discharge port of the second feeding mechanism is connected to the second feed port of the first stirring tank, the first discharge port of the first stirring tank is connected to the feed port of the homogenizing pump, the discharge port of the homogenizing pump is connected to the feed port of the first demagnetizer, and the discharge port of the first demagnetizer is connected to the third feed port of the first stirring tank;

[0006] The second discharge port of the first stirring tank is connected to the first feed port of the second stirring tank, the first discharge port of the second stirring tank is connected to the feed port of the driving pump, the discharge port of the driving pump is connected to the feed port of the second demagnetizer, the discharge port of the second demagnetizer is connected to the feed port of the heat exchanger, the discharge port of the heat exchanger is connected to the feed port of the grinding device, and the discharge port of the grinding device is connected to the second feed port of the second stirring tank;

[0007] The first stirring tank is further communicatively connected to a remote controller, the remote controller being configured to send a first control instruction to the first stirring tank at a first time, the first control instruction being configured to control the stirring speed of the first stirring tank to be greater than a preset speed threshold; the remote controller being configured to send a second control instruction to the first stirring tank at a second time, the second control instruction being configured to control the stirring speed of the first stirring tank to be less than or equal to the preset speed threshold;

[0008] The grinding device includes a device body and a ceramic grinding assembly. The device body includes a grinding cylinder and a grinding shaft passing through the grinding cylinder. The ceramic grinding assembly is located in the grinding cylinder.

[0009] The ceramic grinding assembly includes a support unit, a connecting seat, a first pressing seat and a plurality of ceramic grinding members. The connecting seat and the first pressing seat are arranged opposite to each other along the axial direction of the support unit. The connecting seat is configured to be sleeved on the grinding shaft and rotate synchronously with the grinding shaft. The support unit includes a plurality of supporting members, which are located between the connecting seat and the first pressing seat and connect the connecting seat and the first pressing seat.

[0010] A plurality of ceramic grinding pieces are stacked and arranged on each support piece along the axial direction of the support piece, and are configured to rotate synchronously with the connecting seat when the connecting seat rotates.

[0011] Furthermore, the connecting seat includes a first seat body and a second seat body.

[0012] The first seat body includes a seat body and a fixing portion. The seat body has an assembly cavity in one end away from the first press-fit seat. The second seat body is sleeved in the assembly cavity and forms a conical surface with the cavity wall of the assembly cavity. The second seat body is configured to be sleeved on the grinding shaft so as to drive the first seat body to rotate synchronously when the grinding shaft rotates.

[0013] The fixing portion surrounds the circumference of the seat body and is connected to the seat body; a plurality of support members are evenly distributed on the fixing portion and are fixedly connected to the fixing portion.

[0014] Furthermore, the second seat body is a tapered sleeve, and an annular protrusion is provided on the inner wall of one end of the seat body away from the first press-fit seat, and the inner wall of the annular protrusion forms an assembly cavity;

[0015] The inner wall of the assembly cavity is a conical surface that matches the shape of the circumferential outer wall of the second seat body;

[0016] Along the direction from the connecting seat to the first press-fit seat, the radial dimension of the tapered sleeve gradually decreases.

[0017] Furthermore, the circumferential outer wall of the second seat body is provided with at least two first half holes, and the inner wall of the assembly cavity is provided with a second half hole at the position of each first half hole, and the second half hole and the first half hole form a connecting hole;

[0018] The connecting seat also includes a fastener, which is inserted into the connecting hole;

[0019] The first half hole is a threaded hole, the hole wall of the second half hole is a smooth surface, and there is a height difference between the first half hole and the second half hole on the side facing the fastener;

[0020] There is a third half hole on the circumferential outer wall of the second seat body, and the hole wall of the third half hole is a smooth surface. The inner wall of the assembly cavity is provided with a fourth half hole at the position of the third half hole. The fourth half hole is a threaded hole. The fourth half hole and the third half hole form a disassembly hole that is compatible with the structure of the fastener.

[0021] Furthermore, the ceramic grinding piece is provided with a through hole, the support piece is passed through the through hole, and is elastically connected to the hole wall of the through hole.

[0022] Furthermore, the first press-fit seat includes a first press-fit seat body and a first press-fit unit, the first press-fit unit includes an annular first pressing sheet, and the first pressing sheet is located in the first press-fit seat body;

[0023] The end of each support member is inserted into the first pressing seat; the first pressing plate has a first through-hole with an adjustable aperture, the end of the support member is inserted into the first through-hole, and is detachably connected to the first pressing plate;

[0024] A first pressing hole is further provided in the circumferential direction of the first pressing sheet. The first pressing unit further comprises a first pressing piece, which is passed through the first pressing hole to adjust the size of the first hole during the process of screwing in the first pressing hole.

[0025] Furthermore, the first pressing piece includes a pressing body, the circumferential side wall of the pressing body has a groove body corresponding to each support member, and the first pressing piece is provided with an elastic cantilever elastically connected to the pressing body in the groove body;

[0026] The pressed body and the elastic cantilever are both provided with avoidance notches at positions corresponding to the same support member, and the two avoidance notches form a first through hole;

[0027] A first hole portion is provided on the elastic cantilever, and a second hole portion is provided on the slot body at a position corresponding to the first pressing hole;

[0028] The first hole portion and the second hole portion form a first pressing hole, and the first pressing piece is sequentially inserted into the first hole portion and the second hole portion to adjust the distance between the elastic cantilever and the slot body during the screwing process.

[0029] Furthermore, the ceramic grinding assembly further includes a second pressing seat provided on each support member, the second pressing seat being located between the connecting seat and the first pressing seat and being pressed on the connecting seat and part of the ceramic grinding member;

[0030] The second pressing seat includes a second pressing seat body, a second pressing unit and a pressing cover. The second pressing unit includes an annular second pressing sheet, one side of which is located in the second pressing seat body; the pressing cover is pressed on the other side of the second pressing sheet and is configured to be detachably connected to the grinding shaft.

[0031] Each support member is disposed in the second pressing seat and is detachably connected to the second pressing piece;

[0032] The second pressing plate has a second through hole with an adjustable aperture, and the support member is inserted into the second through hole;

[0033] A second pressing hole is further provided in the circumferential direction of the second pressing sheet. The second pressing unit further includes a second pressing piece, which is passed through the second pressing hole to adjust the size of the second hole during the process of screwing in the second pressing hole.

[0034] Furthermore, the plurality of ceramic grinding members stacked on each support member each include a first grinding unit and a second grinding unit, the first grinding unit being located between the second pressing seat and the connecting seat, and the second grinding unit being located between the second pressing seat and the first pressing seat; and gaps for material flow are provided between adjacent second grinding units;

[0035] The ceramic grinding assembly also includes a limiting sleeve, which is arranged on the circumference of the connecting seat, and the circumference of the limiting sleeve is provided with limiting notches at positions corresponding to each support member;

[0036] The support member is inserted into the limiting notch, and the first grinding unit is clamped in the limiting notch;

[0037] The ceramic grinding assembly also includes multiple limiting rods. Each ceramic grinding piece in the second grinding unit is provided with a limiting hole. The limiting rods are sequentially inserted into the limiting holes of each ceramic grinding piece and are connected between the first pressing seat and the second pressing seat.

[0038] Furthermore, the ceramic grinding piece includes a first grinding piece and a second grinding piece, and the hardness of the first grinding piece is greater than that of the second grinding piece;

[0039] Along the axial direction of the support member, the first grinding member and the second grinding member are alternately stacked on the same support member;

[0040] The first grinding piece is provided with a grinding protrusion on its circumference, and the grinding protrusion protrudes from the outside of the second grinding piece; and an elastic gasket is sandwiched between the first grinding piece and the second grinding piece.

[0041] The lithium iron phosphate slurry stirring system provided in the embodiment of the present application is composed of a first feeding mechanism, a second feeding mechanism, a first stirring tank, a homogenizing pump and a first demagnetizer to form a first dispersion system, a second stirring tank, a driving pump, a second demagnetizer, a heat exchanger and a grinding device to form a second dispersion system, the first stirring tank is also connected to a remote controller for communication, the remote controller is used to send a first control instruction to the first stirring tank at a first time, the first time is earlier than the second time, and the second control instruction is sent to the first stirring tank at the second time, the first control instruction is used to control the stirring speed of the first stirring tank to be greater than a preset speed threshold, the second control instruction is used to control the stirring speed of the first stirring tank to be greater than a preset speed threshold, and the second control instruction is used to control the stirring speed of the first stirring tank to be greater than a preset speed threshold. The control instruction is used to control the stirring speed of the first stirring tank to be less than or equal to a preset speed threshold, so that the first stirring tank can be controlled to stir at a high speed at the first time, so that the lithium iron phosphate powder can be quickly dissolved into the solvent, and stirred at a low speed at the second time to prevent the material from settling, thereby improving the efficiency of the lithium iron phosphate slurry stirring system and improving the slurry performance; on this basis, through the setting of the ceramic grinding assembly in the grinding device, the hardness of the grinding piece and the grinding performance of the ceramic grinding assembly can be improved to meet the hardness requirements of the grinding piece in the lithium iron phosphate slurry stirring system, thereby improving the particle size of the slurry output by the lithium iron phosphate slurry stirring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] FIG1 is a schematic structural diagram of a lithium iron phosphate slurry stirring system provided in some embodiments of the present application;

[0044] FIG2 is a schematic structural diagram of a grinding device provided in an embodiment of the present application;

[0045] FIG3 is a schematic structural diagram of a ceramic grinding assembly provided in an embodiment of the present application;

[0046] FIG4 is an exploded view of a ceramic grinding assembly provided in an embodiment of the present application;

[0047] FIG5 is a cross-sectional view 1 taken along the AA direction in FIG3 ;

[0048] FIG6 is a second cross-sectional view taken along the AA direction in FIG3 ;

[0049] FIG7 is a schematic structural diagram of a first pressing tablet provided in an embodiment of the present application;

[0050] FIG8 is a schematic diagram of the internal structure of the first pressing tablet in FIG7 ;

[0051] FIG9 is a schematic diagram of the assembly of the support member in the first pressing sheet provided in an embodiment of the present application;

[0052] FIG10 is a schematic structural diagram of the anti-loosening gasket in FIG9;

[0053] FIG11 is a schematic diagram of the internal structure of a ceramic grinding assembly provided in an embodiment of the present application;

[0054] FIG12 is a partial exploded view of a second press-fit seat provided in an embodiment of the present application;

[0055] FIG13 is a partial exploded view of the ceramic grinding assembly provided in an embodiment of the present application.

[0056] Reference numerals:

[0057] 100 - ceramic grinding assembly; 1 - support member; 2 - connecting seat; 21 - first seat body; 211 - seat body; 2111 - assembly cavity; 2112 - annular protrusion; 2113 - second half hole; 2114 - fourth half hole; 212 - fixing portion; 2121 - first assembly hole; 22 - second seat body; 221 - first half hole; 222 - third half hole; 223 - keyway; 224 - gap; 23 - fastener;

[0058] 3-first press-fit seat; 31-first press-fit seat body; 311-upper cover; 312-lower cover; 32-first pressing piece; 321-first through-hole; 322-first press-fit hole; 323-disassembly slot; 324-press-fit body; 325-elastic cantilever; 33-first press-fit member; 34-locking member; 35-anti-loosening washer; 351-bending portion;

[0059] 4-ceramic grinding member; 41-first grinding member; 411-grinding protrusion; 42-second grinding member; 43-first grinding unit; 44-second grinding unit; 5-second pressing seat; 51-second pressing seat body; 52-second pressing plate; 521-second through-hole; 522-second pressing hole; 53-pressing cover;

[0060] 6-limiting sleeve; 7-limiting rod; 8-turbine disc; 81-arc-shaped protrusion; 82-channel; 9-sealing ring; 200-grinding device; 210-grinding shaft; 220-grinding cylinder; 230-separating device;

[0061] 110 - first stirring tank; 120 - first demagnetizer; 130 - homogenizing pump; 140 - second stirring tank; 150 - driving pump; 160 - second demagnetizer; 170 - heat exchanger; 180 - second feeding mechanism; 190 - first feeding mechanism. DETAILED DESCRIPTION

[0062] Figure 1 is a lithium iron phosphate slurry stirring system provided in some embodiments of the present application. As shown in Figure 1, the lithium iron phosphate slurry stirring system includes a first feeding mechanism 190, a second feeding mechanism 180, a first stirring tank 110, a homogenizing pump 130, a first demagnetizer 120, a second stirring tank 140, a driving pump 150, a second demagnetizer 160, a heat exchanger 170 and a grinding device 200.

[0063] The discharge port of the first feeding mechanism 190 is connected to the first feed port of the first stirring tank 110, the discharge port of the second feeding mechanism 180 is connected to the second feed port of the first stirring tank 110, the first discharge port of the first stirring tank 110 is connected to the feed port of the homogenizing pump 130, the discharge port of the homogenizing pump 130 is connected to the feed port of the first demagnetizer 120, and the discharge port of the first demagnetizer 120 is connected to the third feed port of the first stirring tank 110.

[0064] The second discharge port of the first stirring tank 110 is connected to the first feed port of the second stirring tank 140, the first discharge port of the second stirring tank 140 is connected to the feed port of the driving pump 150, the discharge port of the driving pump 150 is connected to the feed port of the second demagnetizer 160, the discharge port of the second demagnetizer 160 is connected to the feed port of the heat exchanger 170, the discharge port of the heat exchanger 170 is connected to the feed port of the grinding device 200, and the discharge port of the grinding device 200 is connected to the second feed port of the second stirring tank 140.

[0065] The first feeding mechanism 190 and the second feeding mechanism 180 are used to feed lithium iron phosphate powder into the first stirring tank 110, and a solvent is injected into the first stirring tank 110 through a pipeline. The first stirring tank 110 is used to mix the lithium iron phosphate powder and the solvent. The mixed slurry is broken up by the homogenizing pump 130, demagnetized by the first demagnetizer 120, and then returned to the first stirring tank 110. After repeating this cycle a preset number of times, the slurry is cut by the homogenizing pump 130 to form a slurry with a relatively small particle size, thereby improving the dispersion of the lithium iron phosphate powder in the solvent and the uniformity of the slurry.

[0066] Subsequently, the slurry in the first stirring tank 110 enters the second stirring tank 140. After the discharge port of the second stirring tank 140 is opened, the pump 150 is driven to extract the slurry from the second stirring tank 140, and the slurry passes through the second demagnetizer 160 and the heat exchanger 170 and enters the grinding device 200. After being ground in the grinding device 200, it returns to the second stirring tank 140. This process is repeated. After the slurry passes through the grinding device 200, it forms a slurry with a smaller particle size, thereby further improving the dispersion of the lithium iron phosphate powder in the solvent and the uniformity of the slurry.

[0067] The lithium iron phosphate slurry stirring system further includes a remote controller 202, and the first stirring tank 110 is also communicatively connected to the remote controller 202. The remote controller 202 is configured to send a first control instruction to the first stirring tank 110 at a first time, wherein the first control instruction is configured to control the stirring speed of the first stirring tank 110 to be greater than a preset speed threshold. The remote controller 202 is configured to send a second control instruction to the first stirring tank 110 at a second time, wherein the second control instruction is configured to control the stirring speed of the first stirring tank 110 to be less than or equal to a preset speed threshold, with the first time being earlier than the second time. In this way, the first stirring tank 110 can be controlled to stir at a high speed at the first time, allowing the lithium iron phosphate powder (hereinafter referred to as the powder) to quickly dissolve into the solvent, and to stir at a low speed at the second time to prevent the material (hereinafter referred to as the powder) from settling, thereby improving the efficiency of the lithium iron phosphate slurry stirring system and enhancing the slurry performance.

[0068] In some embodiments, the center of the stirring shaft of the first stirring tank 110 is a high-speed dispersion disk with a speed of up to 1400 rpm, which is used for the preliminary dispersion and dissolution between the powder and the solvent. After the dispersion is completed, low-speed stirring (speed greater than 0 and less than or equal to 89 rpm) can be used. A stirring method combining ribbon stirring, frame stirring, double-layer folding blade paddle and anchor stirring in the prior art is used to increase axial flow and longitudinal flow. The main purpose is to fully make the material flow during the circulation process to prevent the material from settling. The anchor stirring at the lowest point can prevent the sedimentation of the material at low liquid level; adding a baffle on the inner wall of the liquid tank to increase the turbulence of the material can make the material stirred more evenly. The structure of the first stirring tank 110 can refer to the structure of the stirring tank in the prior art, and the structure of the first stirring tank 110 will not be described in detail here.

[0069] Grinding devices often have multiple grinding elements for grinding materials. The hardness of these elements significantly impacts the grinding effect. Generally, when other grinding conditions, such as the particle size and the rotational speed of the grinding device, remain constant, the harder the elements, the better the grinding effect. To meet the increasing demands for fineness in the ground slurry, even higher hardness requirements are placed on the elements.

[0070] The grinding parts in the existing grinding devices are mainly plastic products made of polymer materials, so the hardness of the grinding parts cannot meet the grinding requirements of the grinding devices in the lithium iron phosphate slurry stirring system, which will affect the particle size of the slurry output by the lithium iron phosphate slurry stirring system.

[0071] In view of this, an embodiment of the present application provides a grinding device 200, which includes a ceramic grinding assembly. Since ceramics have higher hardness than plastic products made of polymer materials, the arrangement of multiple ceramic grinding parts in the ceramic grinding assembly can improve the hardness of the grinding parts and the grinding performance of the ceramic grinding assembly to meet the hardness requirements of the grinding parts in the lithium iron phosphate slurry stirring system, thereby improving the particle size of the slurry output by the lithium iron phosphate slurry stirring system.

[0072] The structures of the grinding device and ceramic grinding assembly of the present application are further described below with reference to the accompanying drawings and embodiments.

[0073] As shown in FIG2 , the grinding device 200 includes a device body and a ceramic grinding assembly 100. The device body includes a grinding cylinder 220 and a grinding shaft 210 that passes through the grinding cylinder 220. The ceramic grinding assembly 100 is located within the grinding cylinder 220 and is connected to the grinding shaft 210 so as to rotate under the drive of the grinding shaft 210 and grind the material between the grinding cylinder 220 and the ceramic grinding assembly 100. A grinding chamber of the grinding device 200 is formed between the grinding cylinder 220 and the ceramic grinding assembly 100. The grinding cylinder 220 has a feed port (not shown) on the grinding cylinder 220. Slurry can enter the grinding chamber through the feed port on the grinding cylinder 220, so that the ceramic grinding assembly 100 can grind the material in the slurry.

[0074] The device body can include a grinding motor with a grinding shaft 210. Once the motor is activated, it drives the grinding shaft 210 to rotate, which in turn drives the ceramic grinding assembly 100 to grind the material within the grinding chamber. After grinding, the material enters the ceramic grinding assembly 100, where a separation device 230 assembled within the ceramic grinding assembly 100 separates the grinding media entrained in the slurry to obtain the desired slurry.

[0075] The apparatus body may further include a separation device 230, which may include, but is not limited to, a centrifugal separation device or a spiral separation device. Referring to FIG. 2 and FIG. 11 , at least a portion of the separation device may be located within the ceramic grinding assembly 100, between the first pressing seat 3 and the second pressing seat 5 of the ceramic grinding assembly 100. This allows the separation device 230 to separate the slurry from the grinding media when it rotates, yielding the desired slurry.

[0076] The structures of the first pressing seat 3 and the second pressing seat 5 and their positions in the ceramic grinding assembly 100 will be further described below with reference to specific drawings.

[0077] It should be noted that the equipment body can be understood as the structure in the grinding device 200 except the ceramic grinding component 100. In addition to the grinding motor and the separation device 230, the equipment body can also include structures such as the grinding motor. The grinding motor can be connected to the separation device 230 to drive the separation device 230 to rotate to separate the material and the grinding medium.

[0078] As shown in Figures 3 and 4, the ceramic grinding assembly 100 includes a support unit, a connecting seat 2, a first press-fit seat 3, and a plurality of ceramic grinding members 4. The connecting seat 2 and the first press-fit seat 3 are arranged opposite each other along the axial direction of the support unit. In other words, the connecting seat 2 and the first press-fit seat 3 are arranged face to face along the axial direction of the support unit to facilitate the arrangement of the support unit. The axial direction of the support unit can be seen in the Y direction of Figure 1.

[0079] 4 and 2 , the connecting base 2 is configured to be sleeved on the grinding shaft 210 and to rotate synchronously with the grinding shaft 210. It should be noted that synchronous rotation can be understood as rotating simultaneously in the same direction. By sleeved on the grinding shaft 210, the connecting base 2 is assembled on the grinding shaft 210 and can also rotate simultaneously in the same direction as the grinding shaft 210 when the grinding shaft 210 rotates.

[0080] As shown in Figure 4, the support unit includes a plurality of support members 1, and the plurality of support members 1 are located between the connecting seat 2 and the first pressing seat 3, and connect the connecting seat 2 and the first pressing seat 3, so as to achieve the fixation of the support members 1 between the connecting seat 2 and the first pressing seat 3. The support member 1 can be a support rod, and the end face of the support rod along its own axial direction can be circular or other shapes. The number of support members 1 can be four, five, six or eight, etc. Six support members 1 are shown in Figure 4, which does not constitute a limitation on the structure of the ceramic grinding assembly 100. In this application, the structure and number of the support members 1 are not further limited.

[0081] Multiple ceramic grinding members 4 are stacked on each support member 1 along the axial direction of the support member 1, and are constructed to rotate synchronously with the connecting seat 2 when the connecting seat 2 rotates, so that the multiple ceramic grinding members 4 rotate under the drive of the connecting seat 2 and the support member 1, so as to grind the material during the rotation of the ceramic grinding members 4, thereby realizing the grinding function of the ceramic grinding assembly 100.

[0082] Furthermore, since the ceramic grinding piece 4 has a higher hardness than the grinding pieces in the existing grinding device, it not only meets the hardness requirement of the grinding device 200 for the ceramic grinding piece 4, but also enables the ceramic grinding assembly 100 to achieve better grinding of the material.

[0083] Since ceramics are generally brittle and cannot be directly connected to the grinding shaft 210 through interference, the present application provides a connecting seat 2 and multiple support members 1, so that the ceramic grinding member 4 can be assembled on the grinding shaft 210 through the support members 1 and the connecting seat 2, thereby avoiding a direct interference connection between the ceramic grinding member 4 and the grinding shaft 210. In addition, when the grinding shaft 210 rotates, the power of the grinding shaft 210 is first indirectly transmitted to the multiple support members 1 through the connecting seat 2, and then the torque generated by the grinding shaft 210 is transmitted to the ceramic grinding member 4 through the multiple support members 1, so as to achieve synchronous rotation of the ceramic grinding member 4 and realize the grinding function of the ceramic grinding assembly 100.

[0084] 4 , in some embodiments, the connecting seat 2 may include a first seat body 21 and a second seat body 22. The ends of the plurality of support members 1 are fixed to the circumference of the first seat body 21 to enable the support members 1 to be assembled on the connecting seat 2. The second seat body 22 is nested within the first seat body 21 and is configured to be sleeved on the grinding shaft 210.

[0085] As shown in FIG4 , the first seat 21 includes a seat body 211 and a fixing portion 212. The seat body 211 has an assembly cavity 2111 in one end away from the first press-fit seat 3. The second seat 22 is located in the assembly cavity 2111 and forms a conical surface with the cavity wall of the assembly cavity 2111. The second seat 22 is configured to be sleeved on the grinding shaft 210 so as to drive the first seat 21 to rotate synchronously when the grinding shaft 210 rotates. The first seat 21 can be assembled on the grinding shaft 210 through the second seat 22, thereby achieving the connection between the support member 1 and the grinding shaft 210. When the grinding shaft 210 rotates, the first seat 21 can also drive the multiple ceramic grinding members 4 on the support member 1 to rotate synchronously through the support member 1.

[0086] By setting the second seat body 22 and the cavity wall of the assembly cavity 2111 in a conical fit, the second seat body 22 can be set in the first seat body 21 and the second seat body 22 can be transmitted between the first seat body 21. Compared with the non-conical fit between the second seat body 22 and the cavity wall of the assembly cavity 2111, it is easy to disassemble the first seat body 21.

[0087] The fixing portion 212 surrounds the circumference of the seat body 211 and is connected to the seat body 211. A plurality of support members 1 are evenly distributed on the fixing portion 212 and fixedly connected to the fixing portion 212 to achieve the connection between each support member 1 and the first seat body 21. The position of each support member 1 relative to the first seat body 21 is fixed so that the support members 1 can rotate synchronously with the first seat body 21 when the first seat body 21 rotates, and transmit the torque generated by the grinding shaft 210 to the ceramic grinding member 4, thereby driving the ceramic grinding member 4 to rotate.

[0088] The fixing portion 212 may be integrally connected to the seat body 211, or the fixing portion 212 may be connected to the seat body 211 by a non-integrated connection method such as a snap connection or a fastener. In this application, the connection method between the fixing portion 212 and the seat body 211 is not further limited.

[0089] It should be noted that the fixing portion 212 is provided with a first assembly hole 2121 at a position corresponding to each support member 1, so that the end of each support member 1 can be inserted into the corresponding first assembly hole 2121 and form an interference fit with the fixing portion 212, thereby achieving a fixed connection between the support member 1 and the fixing portion 212, thereby fixing the position of each support member 1 relative to the first base 21. Alternatively, each support member 1 can be connected to the fixing portion 212 by welding or other means, and fixed relative to the position of the first base 21. In this application, the connection method between the support member 1 and the fixing portion 212 is not further limited.

[0090] As shown in FIG4 , the second seat body 22 may be a tapered sleeve. An annular protrusion 2112 is formed on the inner wall of the seat body 211 at one end away from the first press-fit seat 3. The inner wall of the annular protrusion 2112 forms an assembly cavity 2111. The inner wall of the assembly cavity 2111 is a tapered surface that matches the shape of the circumferential outer wall of the second seat body 22. The circumferential outer wall of the second seat body 22 can be understood as the outer wall of the second seat body 22 that faces the inner wall of the assembly cavity 2111. The tapered surface of the assembly cavity 2111 matches the shape of the circumferential outer wall of the second seat body 22. It can be understood that the tapered surface of the assembly cavity 2111 and the circumferential outer wall of the second seat body 22 have the same or similar shapes. This ensures that when the second seat body 22 is located within the assembly cavity 2111, it can achieve a good fit with the cavity wall of the assembly cavity 2111 and achieve tapered fit between the second seat body 22 and the cavity wall of the assembly cavity 2111.

[0091] Moreover, since the annular protrusion 2112 is located on the inner wall of the end of the seat body 211 away from the first press-fit seat 3, while achieving the conical fit between the second seat body 22 and the cavity wall of the assembly cavity 2111, a certain disassembly and assembly space can be reserved in the end of the seat body 211 facing the first press-fit seat 3 to facilitate the disassembly and assembly of the first seat body 21.

[0092] As shown in FIG4 , in some embodiments, the radial dimension of the tapered sleeve gradually decreases along the direction from the connecting seat 2 to the first press-fit seat 3. The direction from the connecting seat 2 to the first press-fit seat 3 can be seen in the Y+ direction in FIG4 . The radial dimension of the tapered sleeve may include the inner diameter and outer diameter of the tapered sleeve. By limiting the radial dimension of the tapered sleeve, the radial dimension of the second seat body 22 toward the connecting seat 2 can be made larger than the radial dimension toward the first press-fit seat 3, so that the first seat body 21 can be mounted on the second seat body 22 along the Y- direction, or detached from the second seat body 22 along the Y+ direction and removed from the second seat body 22.

[0093] The angle formed by the two outermost edges of the second base body 22 along the axial sides can be 6 degrees to 10 degrees, for example, the angle can be 6 degrees, 7 degrees, 8 degrees, 9 degrees or 10 degrees, etc. In this application, the angle of the second base body 22 at this angle is not further limited.

[0094] As shown in Figures 4 and 5 , the circumferential outer wall of the second base body 22 has at least two first half holes 221. The inner wall of the assembly cavity 2111 is provided with a second half hole 2113 at the location of each first half hole 221. The second half holes 2113 and the first half holes 221 form a connecting hole. The connecting base 2 also includes a fastener 23, which is inserted into the connecting hole to connect the first base body 21 to the second base body 22.

[0095] The first half holes 221 may be two, three, or four, and the number of the first half holes 221 is not further limited in this application. At least two first half holes 221 may be evenly distributed on the circumferential outer wall of the second base 22 to enhance the stability of the connection between the first base 21 and the second base 22.

[0096] In some embodiments, the first half hole 221 can be a threaded hole, and the hole wall of the second half hole 2113 is a smooth surface. The first half hole 221 and the second half hole 2113 have a height difference on the side facing the fastener 23, so that the fastener 23 can be passed through the connecting hole and pressed on the first seat body 21 during the process of screwing in the first half hole 221, so that the first seat body 21 can move relative to the second seat body 22 along the Y-direction, thereby forming a conical surface fit with the second seat body 22.

[0097] Referring to Figure 5, in order to achieve the pressing of the fastener 23 on the first seat body 21, an avoidance groove (not marked) is further provided on one end of the second seat body 22 facing the fastener 23. The avoidance groove is located on the circumferential side of the first half hole 221 and is connected to the first half hole 221, so that the side of the first half hole 221 facing the fastener 23 is lower than the side of the second half hole 2113 facing the fastener 23, so that the fastener 23 can be first pressed on the first seat body 21, and in the process of being screwed in the first half hole 221, the first seat body 21 is prompted to move relative to the second seat body 22 along the Y-direction.

[0098] The assembly effect of the fastener 23 in the connection hole can be seen in Figure 6. After the first base body 21 and the second base body 22 are connected, the fastener 23 can be located in the assembly and disassembly space.

[0099] It should be noted that, in other embodiments, the first half hole 221 and the second half hole 2113 may also be semi-threaded holes connected to each other. In this application, the structures of the first half hole 221 and the second half hole 2113 are not further limited.

[0100] As shown in Figure 6, to facilitate disassembly of the first base body 21, the second base body 22 has a smooth third half-hole 222 on its circumferential outer wall. A threaded fourth half-hole 2114 is provided on the inner wall of the assembly cavity 2111, located at the location of the third half-hole 222. The fourth half-hole 2114 is a threaded hole. The fourth half-hole 2114 and the third half-hole 222 form a disassembly hole that matches the structure of the fastener 23. This allows the fastener 23 to be assembled into the disassembly hole after being unscrewed from the connection hole, thus enabling disassembly of the first base body 21 from the second base body 22.

[0101] As shown in FIG6 , in some embodiments, the length of the third half hole 222 can be shorter than the length of the fourth half hole 2114, so that when the first base body 21 and the second base body 22 form a conical surface, the bottom of the third half hole 222 is higher than the bottom of the fourth half hole 2114. In this way, when the fastener 23 is inserted into the removal hole and screwed in, it can first abut against the bottom of the third half hole 222. Continued screwing in the removal hole allows the first base body 21 to smoothly move relative to the second base body 22 along the Y+ direction (not shown, see FIG4 or FIG5 ) and detach from the second base body 22, ultimately achieving removal of the first base body 21 from the second base body 22.

[0102] The third half hole 222 can be one, two, or similar. In this application, the number of third half holes 222 is not further limited. When there are two or more third half holes 222, the third half holes 222 can be evenly distributed along the circumferential outer wall of the second base body 22 to enhance the stability of the second base body 22 during removal of the first base body 21. The third half hole 222 and the first half hole 221 can be spaced apart along the circumference of the second base body 22.

[0103] In other embodiments, the third half hole 222 and the fourth half hole 2114 may also be semi-threaded holes connected to each other. In this application, the structures of the third half hole 222 and the fourth half hole 2114 are not further limited.

[0104] As shown in FIG6 , a keyway 223 is formed on the circumferential inner wall of the second seat body 22, and an elongated slit 224 is formed on the second seat body 22. The length direction of the slit 224 is parallel to the axial direction of the second seat body 22. When the second seat body 22 is sleeved on the grinding shaft 210 and keyed to the grinding shaft 210 via the keyway 223, the slit 224 facilitates an interference fit between the second seat body 22 and the grinding shaft 210. The axial direction of the second seat body 22 can be seen in the Y direction of FIG1 .

[0105] If the first base body 21 and the second base body 22 are made of corresponding metal materials, the contact surfaces of the first base body 21 and the second base body 22 may adhere to each other under the action of molecular motion, making it difficult to remove the first base body 21.

[0106] To this end, in this application, the first base body 21 and the second base body 22 are made of different metal materials to prevent adhesion between the contact surfaces of the first base body 21 and the second base body 22 when the first base body 21 and the second base body 22 are made of the same metal and form a conical surface, thereby facilitating the removal of the first base body 21. For example, the first base body 21 can be made of alloy steel such as martensitic stainless steel or other metal materials, and the second base body 22 can be made of gray cast iron or other metal materials. In this application, the materials used for the first base body 21 and the second base body 22 are not further limited.

[0107] It should be noted that, in other embodiments, the connecting seat 2 may also only include the first seat body 21, and the first seat body 21 can be sleeved on the grinding shaft 210, so that the connecting seat 2 can be assembled on the grinding shaft 210 while still being able to indirectly transmit the power of the grinding shaft 210 to the support member 1.

[0108] As shown in Figure 6, the ceramic grinding piece 4 has a through hole (not marked), the support piece 1 is passed through the through hole, and is elastically connected to the hole wall of the through hole, so that the support piece 1 is passed through the ceramic grinding piece 4, and the ceramic grinding piece 4 is interference fitted on the support piece 1. At the same time, it can avoid direct contact between the support piece 1 and the ceramic grinding piece 4 and pressure on the ceramic grinding piece 4, so as to ensure the structural integrity of the ceramic grinding piece 4.

[0109] Specifically, the circumferential outer wall of the ceramic grinding member 4 can be covered with an elastic sleeve (not shown) so that the support member 1 can be inserted into the through-hole and elastically connected to the wall of the through-hole through the elastic sleeve. The elastic sleeve can be made of an elastic polymer material. The polymer material used to make the elastic sleeve can include, but is not limited to, polytetrafluoroethylene or other elastic polymer materials.

[0110] As shown in Figure 4, the first press-fit seat 3 includes a first press-fit seat body 31 and a first press-fit unit. The first press-fit unit includes an annular first pressing piece 32. The first pressing piece 32 is located within the first press-fit seat body 31 to enable the first pressing piece 32 to be assembled within the first press-fit seat body 31. The end of each support member 1 is inserted into the first press-fit seat body 31 and is detachably connected to the first pressing piece 32 to secure each support member 1 within the first press-fit seat body 31.

[0111] It should be noted that the provision of the first pressing seat 3 can secure the multiple ceramic grinding members 4 on each support member 1 to prevent the multiple ceramic grinding members 4 from moving axially along the support member 1. In use, when the length of the support member 1 and the number of connected ceramic grinding members 4 are fixed, the distance between the first pressing seat 3 and the connecting seat 2 can be adjusted to prevent the ceramic grinding members 4 from being subjected to excessive pressure.

[0112] As shown in Figure 4 , the first press-fit seat 31 includes an upper cover 311 and a lower cover 312. The upper cover 311 and the lower cover 312 are arranged axially opposite each other to form the first press-fit seat 31 with a cavity therein. Through holes are provided in the upper cover 311 and the lower cover 312 at positions corresponding to each support member 1, so that the support member 1 can pass through the through holes in the upper cover 311 and the lower cover 312 and be removably connected to the upper cover 311 via fasteners (not shown).

[0113] The first pressing piece 32 is accommodated in the cavity of the first pressing seat 31. In some embodiments, the first pressing seat 3 may further include a gasket (not shown) and a washer (not shown). Gaskets may be respectively provided between the first pressing piece 32 and the lower cover 312 and between the first pressing piece 32 and the upper cover 311. The gasket may also be provided around the circumference of the first pressing piece 32. The provision of the gasket and the gasket can prevent the first pressing piece 32 from directly contacting the upper cover 311 and the lower cover 312.

[0114] It should be noted that the upper cover 311, the lower cover 312, and the first pressing plate 32 can all be made of metal. To prevent the lower cover 312 from directly contacting the ceramic grinding members 4 on each support member 1, an elastic gasket is further provided between each ceramic grinding member 4 and the lower cover 312 to prevent the ceramic grinding members 4 from being subjected to excessive pressure when pressed by the first pressing seat 31.

[0115] 7 and 9 , the first pressing plate 32 has a first through hole 321 with an adjustable aperture. The end of the support member 1 is passed through the first through hole 321 and is detachably connected to the first pressing plate 32 .

[0116] As shown in Figures 7 and 8, a first pressing hole 322 is also provided in the circumference of the first pressing plate 32, and the first pressing unit also includes a first pressing part 33, which is passed through the first pressing hole 322 to adjust the size of the first hole 321 during the process of screwing in the first pressing hole 322.

[0117] 4 , 7 , 8 and 9 , when the end of the support member 1 passes through the through hole of the lower cover 312 and is penetrated into the first penetration hole 321, the first pressing member 33 can be pressed into the portion of the first pressing plate 32 where the first pressing hole 322 is provided in the process of continuously rotating in the first pressing hole 322 toward the side where the first penetration hole 321 is located, so as to shrink the first penetration hole 321, so that the support member 1 fits into the hole wall of the first penetration hole 321, and forms a tight fit (such as an interference fit) with the first pressing plate 32 in the first penetration hole 321, so that the first pressing plate 32 can rotate synchronously with the support member 1.

[0118] Similarly, as the first pressing member 33 is continuously screwed in the first pressing hole 322 toward the side away from the first penetration hole 321, the pressure applied to the first pressing plate 32 can be released to enlarge the first penetration hole 321, which is conducive to the disassembly of the support member 1.

[0119] As shown in Figures 7 and 9, in some embodiments, in order to facilitate the disassembly of the support member 1, the first pressing plate 32 is further provided with a disassembly groove 323 on the surrounding side of the first penetration hole 321, and the disassembly groove 323 is communicated with the first penetration hole 321, so that when the staff disassembles the support member 1, the fingers can be located in the disassembly groove 323, which is conducive to the disassembly of the support member 1.

[0120] As shown in Figures 8 and 9, the first pressing piece 32 includes a press-fit body 324. The circumferential sidewalls of the press-fit body 324 have grooves (not labeled) corresponding to each support member 1. The first pressing piece 32 is provided with an elastic cantilever 325 within the grooves, which is elastically connected to the press-fit body 324. The press-fit body 324 and the elastic cantilever 325 are both provided with an escape notch (not labeled) at the position corresponding to the same support member 1. The two escape notches enclose a first perforation 321, so that the size of the first perforation 321 can be adjusted when the elastic cantilever 325 is displaced relative to the press-fit body 324 under pressure.

[0121] As shown in Figures 7 and 8 , the elastic cantilever 325 is provided with a first hole (not labeled), and the slot body is provided with a second hole (not labeled) at a position corresponding to the first press-fit hole 322. The first and second hole portions form the first press-fit hole 322. The first press-fit member 33 is sequentially inserted into the first and second hole portions to adjust the distance between the elastic cantilever 325 and the slot body during the screwing process. This allows the elastic cantilever 325 to displace relative to the press-fit body 324 under the pressure of the first press-fit member 33, thereby adjusting the size of the first hole 321.

[0122] At least one of the first hole portion and the second hole portion may be a threaded hole to facilitate the screwing of the first pressing member 33. Specifically, as the first pressing member 33 is continuously screwed into the second hole portion from the first hole portion, the elastic cantilever 325 can be pressed and moved toward the side of the slot body where the second hole portion is provided, thereby reducing the size of the first through-hole 321. Similarly, as the first pressing member 33 is continuously screwed into the first hole portion from the side away from the second hole portion, the pressure applied to the elastic cantilever 325 can be released, causing the elastic cantilever 325 to move toward the side away from the second hole portion from the slot body, thereby increasing the size of the first through-hole 321.

[0123] It should be noted that the elastic cantilever 325 is integrally connected to the first side groove wall of the groove body, and the end of the elastic cantilever 325 extends toward the second side groove wall of the groove body along the circumference of the pressed body 324, and there is a gap between the second side groove wall and the groove bottom of the groove body. The second hole portion is located on the groove bottom of the groove body, so that the elastic cantilever 325 is displaced relative to the pressed body 324 under the action of pressure, thereby adjusting the size of the first through hole 321.

[0124] 7 and 9 , in some embodiments, when the end of the support member 1 is passed through the first penetration hole 321 , it can be threadedly connected to a locking member 34 such as a nut to achieve a detachable connection between the support member 1 and the first pressing plate 32 .

[0125] As shown in Figure 9, in some embodiments, in order to prevent the locking member 34 from loosening during the rotation of the support member 1, an anti-loosening gasket 35 is further provided inside the first pressing seat 31 and at each support member 1. The anti-loosening gasket 35 can be mounted on the end of the support member 1 and located between the upper cover 311 and the first pressing plate 32, so that during the rotation of the support member 1, the anti-loosening gasket 35 can limit the rotation of the locking member 34 relative to the support member 1, thereby ensuring a stable connection between the locking member 34 and the support member 1.

[0126] As shown in Figure 10, the anti-loosening gasket 35 has two bent portions 351 bent in different directions on the circumference. When the anti-loosening gasket 35 is mounted on the end of the support member 1, the two bent portions 351 can be located on different sides of the locking member 34 respectively, so as to prevent the locking member 34 from rotating relative to the support member 1, thereby achieving an anti-loosening effect.

[0127] It should be noted that, in some embodiments, the number of the bent portion 351 can be one or more. Alternatively, the anti-loosening gasket 35 can also adopt other structures. In this application, the structure of the anti-loosening gasket 35 is not further limited.

[0128] As shown in Figure 11, in some embodiments, the ceramic grinding assembly 100 may further include a second pressing seat 5 passed through each support member 1, and the second pressing seat 5 is located between the connecting seat 2 and the first pressing seat 3, and is pressed on the connecting seat 2 and part of the ceramic grinding member 4 to prevent the connecting seat 2 or part of the ceramic grinding member 4 from moving along the Y direction, while also being able to block one end of the connecting seat 2 toward the first pressing seat 3.

[0129] 2 and 11 , part of the second press-fit seat 5 is configured to be detachably connected to the grinding shaft 210 , so that the second press-fit seat 5 can be pressed onto the connecting seat 2 while being connected to the grinding shaft 210 .

[0130] As shown in Figure 11, the second pressing seat 5 can include a second pressing seat body 51, a second pressing unit (not marked) and a pressing cover 53. The second pressing unit includes an annular second pressing plate 52, and one side of the second pressing plate 52 is located in the second pressing seat body 51.

[0131] 11 and 12 , the pressure cover 53 is pressed onto the other side of the second pressing piece 52 and is configured to be detachably connected to the grinding shaft 210. After the pressure cover 53 is connected to the grinding shaft 210, it can be pressed onto the first seat 21 and seal the end of the first seat 21 facing the first press-fit seat 3. The pressure cover 53 can be connected to the grinding shaft 210 using fasteners such as bolts or screws to facilitate disassembly of the second press-fit seat 5 and the connecting seat 2.

[0132] 11 , each support member 1 (not shown) is inserted into the second pressing seat 51 and is detachably connected to the second pressing piece 52 to fix each support member 1 in the second pressing seat 51 .

[0133] The structure of the second pressing seat 5 is the same as that of the upper cover 311 , and will not be described in detail here.

[0134] As shown in FIG12 , the second pressing plate 52 has a second through-hole 521 with an adjustable aperture, and the support member 1 is inserted into the second through-hole 521. Second pressing holes 522 are also provided around the circumference of the second pressing plate 52. The second pressing unit further includes a second pressing member (not shown) inserted into the second pressing hole 522 to adjust the size of the second through-hole 521 during screwing within the second pressing hole 522, thereby achieving a tight fit between the support member 1 and the second pressing plate 52 within the second through-hole 521 or facilitating removal of the support member 1 from the second pressing seat 5.

[0135] It should be noted that the formation of the second through hole 521 and the second pressing hole 522 on the second pressing plate 52, as well as the principle of adjusting the size of the second through hole 521 by the second pressing part, can be found in the above description of the first pressing seat 3, and will not be repeated here.

[0136] As shown in FIG11 , the plurality of ceramic grinding members 4 stacked on each support member 1 each include a first grinding unit 43 and a second grinding unit 44. The first grinding unit 43 is located between the second pressing seat 5 and the connecting seat 2, and the second grinding unit 44 is located between the second pressing seat 5 and the first pressing seat 3. Gaps are provided between adjacent second grinding units 44 for material flow. As the ceramic grinding members 4 rotate and grind the material, the ground material can enter the interior of the ceramic grinding assembly 100 through the gaps between adjacent second grinding units 44, facilitating subsequent material separation.

[0137] 11 , in some embodiments, the ceramic grinding member 4 may include a first grinding member 41 and a second grinding member 42, wherein the first grinding member 41 has a greater hardness than the second grinding member 42. Along the axial direction of the support member 1, the first grinding members 41 and the second grinding members 42 are alternately stacked on the same support member 1, thereby meeting the hardness requirements of the grinding device 200 for the ceramic grinding members 4 while also reducing the manufacturing costs of the ceramic grinding members 4 and the ceramic grinding assembly 100.

[0138] Taking silicon nitride as an example for the first grinding member 41, zirconium oxide or other ceramic materials with a hardness lower than silicon nitride can be used for the second grinding member 42. In this application, the ceramic materials for making the first grinding member 41 and the second grinding member 42 are not further limited.

[0139] The first grinding member 41 has a grinding protrusion 411 on its circumference. The grinding protrusion 411 protrudes from the outside of the second grinding member 42. When the support member 1 rotates, the grinding protrusion 411 can be driven to rotate synchronously, thereby grinding the material. The grinding protrusion 411 can be a trapezoidal protrusion, with the top of the trapezoidal protrusion protruding from the outside of the second grinding member 42. This can change the direction of force applied to the material during grinding, thereby forming a stable turbulent flow of the material within the grinding chamber of the grinding device 200.

[0140] Moreover, since the first grinding members 41 and the second grinding members 42 are alternately stacked on the same support member 1, multiple first grinding members 41 can be arranged on the same support member 1 along the axial intervals of the support member 1 to reduce the resistance of the grinding protrusions 411 to the material during grinding, so as to facilitate the flow of material between adjacent grinding protrusions 411.

[0141] Among them, an elastic gasket (not shown) is sandwiched between the first grinding piece 41 and the second grinding piece 42, and the support piece 1 is passed through the elastic gasket so that the elastic gasket isolates the adjacent first grinding piece 41 and the second grinding piece 42 to avoid a hard collision between the first grinding piece 41 and the second grinding piece 42. At the same time, when the first pressing seat 3 and the second pressing seat 5 are pressed onto the ceramic grinding piece 4, the setting of the elastic gasket can also prevent the ceramic grinding piece 4 on the same support piece 1 from being subjected to excessive pressure when being pressed by the first pressing seat 31 and the second pressing seat 5, so that the first grinding piece 41 and the second grinding piece 42 are in a state of both being pressed and not being pressed.

[0142] It should be noted that, in other embodiments, the first grinding member 41 and the second grinding member 42 may also be made of ceramic materials with the same hardness.

[0143] As shown in Figure 6, the ceramic grinding assembly 100 may also include a limiting sleeve 6, which is sleeved on the circumference of the connecting seat 2. For example, the limiting sleeve 6 can be sleeved on the circumference of the seat body 211 of the first seat body 21. The circumference of the limiting sleeve 6 is provided with limiting notches at the positions corresponding to each support member 1. The support member 1 is passed through the limiting notch, and the first grinding unit 43 is clamped in the limiting notch, so that under the action of the support member 1, the first grinding unit 43 can be clamped and fixed in the limiting notch, and the first grinding member 41 and the second grinding member 42 in the first grinding unit 43 are limited by the limiting notch to prevent the ceramic grinding member 4 from being offset relative to the support member 1 during the rotation of the support member 1.

[0144] It should be noted that Figure 6 illustrates the structure of the limiting sleeve 6 with six limiting notches, which does not constitute a limitation on the structure of the limiting sleeve 6. When the number of support members 1 changes, the number of limiting sleeves 6 also changes accordingly.

[0145] As shown in Figure 4, the ceramic grinding assembly 100 can also include a plurality of limiting rods 7. Each ceramic grinding piece 4 in the second grinding unit 44 is provided with a limiting hole (not shown). The limiting rods 7 are sequentially passed through the limiting holes of each ceramic grinding piece 4 and connected between the first pressing seat 3 and the second pressing seat 5, so that the first grinding piece 41 and the second grinding piece 42 in the second grinding unit 44 are limited from positionally offset relative to the support member 1 during the grinding process through the cooperation between the limiting rods 7 and the limiting holes.

[0146] Specifically, one end of the limiting rod 7 can be inserted into the first press-fit seat 3 and connected to at least part of the structure of the first press-fit seat 3 via a fastener or interference fit. Similarly, the other end of the limiting rod 7 can also be inserted into the second press-fit seat 5 and connected to at least part of the structure of the second press-fit seat 5 via a fastener or interference fit. In this application, the connection method of the limiting rod 7 to the first press-fit seat 3 and the second press-fit seat 5 is not further limited.

[0147] Referring to Figure 13 and in combination with Figure 2, the ceramic grinding assembly 100 may also include a turbine disc 8, which has a mounting groove on the side facing the connecting seat 2 and is constructed to be sleeved on the grinding shaft 210. Part of the structure of the connecting seat 2 is located in the mounting groove and is detachably connected to the turbine disc 8. Specifically, the fixing portion 212 of the first seat body 21 can be located in the mounting groove. In this way, while the turbine disc 8 is assembled on the connecting seat 2, when the turbine disc 8 rotates with the grinding shaft 210, the material of the grinding device 200 at the grinding shaft 210 can also be thrown to the outside of the turbine disc 8 to avoid the accumulation of material on the grinding shaft 210 or the turbine disc 8.

[0148] The side of the turbine disk 8 facing away from the connector 2 is equipped with a plurality of arcuate protrusions 81. These arcuate protrusions 81 are evenly spaced along the circumference of the turbine disk 8. A channel 82 for ejecting material is formed between adjacent arcuate protrusions 81. The width of the channel 82 on the side facing the center of the turbine disk 8 is greater than the width on the side facing away from the center of the turbine disk 8. This allows the centrifugal force to move the material within the channel 82 and eject it to the outside of the turbine disk 8 as the turbine disk 8 rotates with the grinding shaft 210.

[0149] As shown in Figure 13, in some embodiments, the protrusion height of the arc-shaped protrusion 81 on the side facing the turbine disk 8 is greater than the protrusion height on the side facing the turbine disk 8, so that when the material moves along the direction a in the channel 82, the turbine disk 8 can apply less and less pressure to the material, so that the kinetic energy of the material becomes greater and greater.

[0150] It should be noted that, in other embodiments, the protrusion height of the arc-shaped protrusion 81 on the side facing the turbine disc 8 may also be equal to the protrusion height on the side facing the turbine disc 8. In this application, the protrusion height of the arc-shaped protrusion 81 is not further limited.

[0151] It should be noted that a sealing ring 9 may also be provided inside the turbine disc 8, and part of the structure of the sealing ring 9 may be located inside the fixing portion 212, so that after the turbine disc 8 is connected to the fixing portion 212, a sealed connection between the turbine disc 8 and the fixing portion 212 may be achieved through the sealing ring 9.

[0152] In the above technical solution, the connection seat 2, the support member 1 and the first pressing seat 3 are arranged in the ceramic grinding assembly 100. Since the multiple support members 1 are located between the connection seat 2 and the first pressing seat 3 and connect the connection seat 2 and the first pressing seat 3, the support members 1 can be fixed between the connection seat 2 and the first pressing seat 3. In addition, since the multiple ceramic grinding members 4 are stacked on each support member 1 along the axial direction of the support member 1 and are constructed to rotate synchronously with the connection seat 2 when the connection seat 2 rotates, the multiple ceramic grinding members 4 rotate under the drive of the connection seat 2 and the support member 1. While realizing the grinding function of the ceramic grinding assembly 100, compared with the grinding members of plastic products in the existing grinding device, the ceramic grinding members 4 have a higher hardness, which can meet the hardness requirements of the grinding device for the grinding members, so as to achieve better grinding of the material. In addition, the ceramic grinding piece 4 is assembled on the grinding shaft 210 through the support member 1 and the connecting seat 2, avoiding direct interference connection between the ceramic grinding piece 4 and the grinding shaft 210. When the grinding shaft 210 rotates, the power of the grinding shaft 210 is first indirectly transmitted to the multiple support members 1 through the connecting seat 2, and then the torque generated by the grinding shaft 210 is transmitted to the ceramic grinding piece 4 through the multiple support members 1, so as to realize the synchronous rotation of the ceramic grinding piece 4.

[0153] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0154] In the description of this application, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, display structure, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or are inherent to these processes, methods, products or apparatuses.

[0155] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," "fixed," etc. should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration. They can be directly connected or indirectly connected through an intermediate medium, allowing internal communication between two elements or an interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated.

[0156] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lithium iron phosphate slurry stirring system, characterized in that: include: A first feeding mechanism, a second feeding mechanism, a first stirring tank, a homogenizing pump, a first demagnetizer, a second stirring tank, a driving pump, a second demagnetizer, a heat exchanger and a grinding device; The discharge port of the first feeding mechanism is connected to the first feed port of the first stirring tank, the discharge port of the second feeding mechanism is connected to the second feed port of the first stirring tank, the first discharge port of the first stirring tank is connected to the feed port of the homogenizing pump, the discharge port of the homogenizing pump is connected to the feed port of the first demagnetizer, and the discharge port of the first demagnetizer is connected to the third feed port of the first stirring tank; The second discharge port of the first stirring tank is connected to the first feed port of the second stirring tank, the first discharge port of the second stirring tank is connected to the feed port of the driving pump, the discharge port of the driving pump is connected to the feed port of the second demagnetizer, the discharge port of the second demagnetizer is connected to the feed port of the heat exchanger, the discharge port of the heat exchanger is connected to the feed port of the grinding device, and the discharge port of the grinding device is connected to the second feed port of the second stirring tank; The first stirring tank is also in communication connection with a remote controller, and the remote controller is used to send a first control instruction to the first stirring tank at a first time, and the first control instruction is used to control the stirring speed of the first stirring tank to be greater than a preset speed threshold; the remote controller is used to send a second control instruction to the first stirring tank at a second time, and the second control instruction is used to control the stirring speed of the first stirring tank to be less than or equal to the preset speed threshold, and the first time is earlier than the second time; The grinding device comprises a device body and a ceramic grinding assembly, wherein the device body comprises a grinding cylinder and a grinding shaft passing through the grinding cylinder, and the ceramic grinding assembly is located in the grinding cylinder; The ceramic grinding assembly comprises a support unit, a connecting seat, a first pressing seat and a plurality of ceramic grinding pieces, wherein the connecting seat and the first pressing seat are arranged opposite to each other along the axial direction of the support unit, and the connecting seat is configured to be sleeved on the grinding shaft and rotate synchronously with the grinding shaft; the support unit comprises a plurality of supporting pieces, and the plurality of supporting pieces are located between the connecting seat and the first pressing seat and connect the connecting seat and the first pressing seat; A plurality of the ceramic grinding members are stacked on each of the support members along the axial direction of the support member, and are configured to rotate synchronously with the connection seat when the connection seat rotates; The ceramic grinding piece has a through hole, the support piece is inserted into the through hole and elastically connected to the hole wall of the through hole; The first pressing seat comprises a first pressing seat body and a first pressing unit, the first pressing unit comprises an annular first pressing sheet, and the first pressing sheet is located in the first pressing seat body; The end of each of the supporting members is inserted through the first pressing seat, the first pressing sheet has a first insertion hole with an adjustable aperture, the end of the supporting member is inserted through the first insertion hole and is detachably connected to the first pressing sheet; The first pressing sheet is also provided with a first pressing hole in its circumference, and the first pressing unit further includes a first pressing piece, and the first pressing piece is penetrated in the first pressing hole to adjust the size of the first penetration hole during the process of screwing in the first pressing hole; The first pressing sheet comprises a pressing body, the circumferential side wall of the pressing body has a groove body corresponding to each of the supporting members, and the first pressing sheet is provided with an elastic cantilever elastically connected to the pressing body in the groove body; The pressed body and the elastic cantilever are both provided with avoidance notches at positions corresponding to the same support member, and the two avoidance notches surround the first penetration hole; The elastic cantilever is provided with a first hole portion, and the slot body is provided with a second hole portion at a position corresponding to the first pressing hole; The first hole portion and the second hole portion form the first pressing hole, and the first pressing piece is sequentially inserted into the first hole portion and the second hole portion to adjust the distance between the elastic cantilever and the slot body during the screwing process.

2. The lithium iron phosphate slurry stirring system according to claim 1, characterized in that: The connecting seat includes a first seat body and a second seat body, the first seat body includes a seat body and a fixing portion, the seat body has an assembly cavity in one end away from the first press-fit seat, the second seat body is sleeved in the assembly cavity and is conically matched with the cavity wall of the assembly cavity; the second seat body is constructed to be sleeved on the grinding shaft to drive the first seat body to rotate synchronously when the grinding shaft rotates; the fixing portion surrounds the circumference of the seat body and is connected to the seat body; the plurality of support members are evenly distributed on the fixing portion and are fixedly connected to the fixing portion.

3. The lithium iron phosphate slurry stirring system according to claim 2, characterized in that: The second seat body is a conical sleeve, and the inner wall of the seat body at one end away from the first press-fit seat has an annular protrusion, and the inner wall of the annular protrusion surrounds the assembly cavity; the inner wall of the assembly cavity is a conical surface that is adapted to the shape of the circumferential outer wall of the second seat body; along the direction from the connecting seat to the first press-fit seat, the radial dimension of the conical sleeve gradually decreases.

4. The lithium iron phosphate slurry stirring system according to claim 3, characterized in that: The circumferential outer wall of the second seat body is provided with at least two first half holes, the inner wall of the assembly cavity is provided with second half holes at the positions of the first half holes, and the second half holes and the first half holes form a connecting hole; The connection seat further includes a fastener, and the fastener is inserted into the connection hole; the first half hole is a threaded hole, the hole wall of the second half hole is a smooth surface, and the first half hole and the second half hole have a height difference on the side facing the fastener; A third half hole is provided on the circumferential outer wall of the second seat body, and the hole wall of the third half hole is a smooth surface. A fourth half hole is provided on the inner wall of the assembly cavity at the position of the third half hole, and the fourth half hole is a threaded hole. The fourth half hole and the third half hole form a disassembly hole that is compatible with the structure of the fastener.

5. The lithium iron phosphate slurry stirring system according to any one of claims 1 to 4, characterized in that: The ceramic grinding assembly further comprises a second pressing seat penetrating each of the supporting members, the second pressing seat being located between the connecting seat and the first pressing seat and being pressed on the connecting seat and a portion of the ceramic grinding member; The second pressing seat comprises a second pressing seat body, a second pressing unit and a pressing cover, wherein the second pressing unit comprises an annular second pressing sheet, one side of the second pressing sheet is located in the second pressing seat body; the pressing cover is pressed on the other side of the second pressing sheet and is configured to be detachably connected to the grinding shaft; each of the supporting members is inserted into the second pressing seat body and is detachably connected to the second pressing sheet; The second pressing plate has a second through hole with adjustable aperture size, and the support member is penetrated in the second through hole; the second pressing plate is also provided with a second pressing hole in the circumference, and the second pressing unit also includes a second pressing member, and the second pressing member is penetrated in the second pressing hole to adjust the size of the second through hole during the process of screwing in the second pressing hole.

6. The lithium iron phosphate slurry stirring system according to claim 5, characterized in that: The plurality of ceramic grinding members stacked on each of the supporting members each comprises a first grinding unit and a second grinding unit, the first grinding unit is located between the second pressing seat and the connecting seat, and the second grinding unit is located between the second pressing seat and the first pressing seat; adjacent second grinding units have gaps for material flow; The ceramic grinding assembly further comprises a limiting sleeve, which is arranged on the circumference of the connecting seat, and the circumference of the limiting sleeve is provided with limiting notches at positions corresponding to each of the supporting members; The support member is inserted into the limiting notch, and the first grinding unit is clamped in the limiting notch; The ceramic grinding assembly also includes a plurality of limiting rods. Each of the ceramic grinding pieces in the second grinding unit is provided with a limiting hole. The limiting rods are sequentially inserted into the limiting holes of each of the ceramic grinding pieces and are connected between the first pressing seat and the second pressing seat.

7. The lithium iron phosphate slurry stirring system according to any one of claims 1 to 4, characterized in that: The ceramic grinding piece includes a first grinding piece and a second grinding piece, and the hardness of the first grinding piece is greater than that of the second grinding piece; Along the axial direction of the support member, the first grinding member and the second grinding member are alternately stacked on the same support member; The first grinding member has a grinding protrusion on its circumference, and the grinding protrusion protrudes and is exposed on the circumferential edge of the second grinding member; An elastic gasket is sandwiched between the first grinding member and the second grinding member.

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