Grinding and cooling device applied to rare earth oxide slurry
By designing the inner and outer shells and the double cooling cavity of the grinding transmission shaft in the grinding machine, the problem of poor cooling effect in existing technologies has been solved, and more efficient slurry heat dissipation and stable temperature control are achieved, and the granularity is achieved. Rate and energy utilization efficiency.
Patent Information
- Application Number
- CN202421006210.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During the process of refining rare earth oxide slurry, the cooling effect of the internal cooling method in the shell is not obvious, resulting in the increase of the slurry temperature, the grinding time is extended, the shear force is weakened, the powder agglomeration, and the grinding particle size is difficult to meet the requirements. Increased costs.
Design a cooling device that includes the first cooling cavity between the inner and outer shells and the second cooling cavity in the grinding transmission shaft. The cooling liquid is pumped into the cooling cavity through the cooling device and the pump to achieve the internal and external double cooling of the grinding machine and increased. The heat dissipation area increases the cooling effect.
Through the double cooling design of the inner and outer shells and the grinding transmission shaft, the heat dissipation effect of the slurry is significantly improved, the temperature of the pulp was stabilized, and the energy loss and powder reunion caused by the unable to control due to temperature, which improved the granularity achievement to achieve the grain size achievement Rate.
Smart Images
Figure CN222401763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding cooling device used for rare earth oxide slurry. Background Art
[0002] Rare earth oxides refer to oxides of 15 lanthanide elements with atomic numbers from 57 to 71 in the periodic table, as well as oxides of 17 elements with similar chemical properties to lanthanide elements, such as scandium and yttrium. Rare earth elements have been widely used in the fields of petroleum, chemical industry, metallurgy, textile, ceramics, glass, permanent magnetic materials, etc. With the advancement of science and technology and the continuous breakthrough of application technology, the value of rare earth oxides will become greater and greater. The grinder can refine the rare earth oxides while dispersing and mixing them.
[0003] In the prior art, during the process of refining the slurry, the grinder uses a circulating cooling method inside the outer shell to cool the equipment and the slurry, but the cooling effect is not obvious. The temperature gradually increases as it approaches the grinding axis, and as the grinding time of the grinder increases, the slurry temperature in the slurry barrel will gradually increase. The increase in temperature will cause the grinding time to become longer, the shear force of the grinding medium to become worse, and the powder in the slurry to agglomerate. It takes a long time to reach the grinding particle size requirement, which increases the grinding cost. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in order to overcome the problem that the prior art uses a method of circulating cooling inside the outer shell to cool the equipment and slurry, but its cooling effect is not obvious, the temperature gradually increases as it approaches the grinding shaft, and as the grinding time of the grinder increases, the slurry temperature in the slurry barrel will gradually increase, and the temperature increase will cause the grinding time to become longer. A cooling device for rare earth oxide slurry grinding is provided.
[0005] The utility model solves the technical problem by adopting the following technical solution: a rare earth oxide slurry grinding cooling device, comprising a cooling mechanism installed on a grinding machine, the grinding machine comprising a frame, a driving member, a grinding transmission shaft, a grinding disc, an outer shell and an inner shell, the outer shell and the frame are fixedly connected, the inner shell gap is arranged in the outer shell, and the gap between the inner shell and the outer shell forms a first cooling cavity, the driving member and the frame are fixedly connected, the driving member and the input end of the grinding transmission shaft are transmission-connected, the driving member is used to provide power for the rotation of the grinding transmission shaft, the output end of the grinding transmission shaft extends through the outer shell to the inner cavity of the inner shell, the grinding disc is installed on the grinding transmission shaft, and the grinding disc is located in the inner shell, and a second cooling cavity is opened in the grinding transmission shaft;
[0006] The cooling mechanism includes a cooler for cooling the coolant and a water pump for pumping the coolant into the first cooling chamber and the second cooling chamber. The input end of the water pump is connected to the output end of the cooler, the output end of the water pump is connected to the input end of the first cooling chamber and the input end of the second cooling chamber, and the input end of the cooler is connected to the output end of the first cooling chamber and the output end of the second cooling chamber. Through the design of the first cooling chamber between the inner shell and the outer shell and the second cooling chamber in the grinding drive shaft, internal and external double cooling of the grinder is achieved. The first cooling chamber is mainly used for cooling the slurry, and the second cooling chamber is mainly used for cooling the shaft, thereby improving the cooling effect, increasing the heat dissipation area, making the heat dissipation effect of the slurry better, and being able to stably control the temperature of the slurry, reducing the energy loss caused by temperature control failure during grinding and the agglomeration of the slurry causing the slurry grinding particle size to not be reduced.
[0007] In order to solve the problem of how to connect the cooling mechanism to the grinding drive shaft and input the coolant into the second cooling chamber, the cooling mechanism further includes a connecting head, the connecting head is rotatably connected to the grinding drive shaft, the input end of the connecting head is connected to the output end of the water pump, and the output end of the connecting head is connected to the input end of the second cooling chamber.
[0008] In order to solve the problem of how the connector realizes the transition between the water pump and the grinding transmission shaft, the connector further includes an annular structure, a first annular connecting channel is provided on the inner ring of the connector, a second connecting channel is provided on the connector and extends radially along the connector, one end of the second connecting channel is connected to the first connecting channel, and the other end of the second connecting channel extends to the surface of the connector and is connected to the output end of the water pump.
[0009] In order to solve the problem of inconvenient connection between the second cooling chamber and the connecting head, the second cooling chamber further includes a first cooling channel extending axially along the grinding transmission shaft and a second cooling channel extending radially along the grinding transmission shaft, the first cooling channel and the second cooling channel are connected, the output end of the first cooling channel is connected to the input end of the cooler, and the second cooling channel is connected to the first connecting channel.
[0010] In order to solve the problems of low installation stability and low installation efficiency of the connector, a positioning portion is further protruded from the inner ring of the connector, a positioning groove matching the positioning portion is opened on the grinding transmission shaft, and the positioning portion is arranged in the positioning groove.
[0011] The grinder further includes a filtering mechanism, which includes a mounting seat and a screen. The mounting seat is fixedly connected to the inner shell, a filtering hole is opened on the mounting seat, the screen is arranged in the filtering hole, and the output end of the grinding transmission shaft is rotatably connected to the mounting seat.
[0012] In order to solve the problem of low structural connection strength between the outer shell and the inner shell, the outer shell and the inner shell are further fixedly connected.
[0013] The beneficial effect of the utility model is as follows: the utility model provides a cooling device for rare earth oxide slurry grinding, which realizes internal and external double cooling of the grinder through the design of the first cooling chamber between the inner shell and the outer shell and the second cooling chamber in the grinding drive shaft. The first cooling chamber is mainly used for cooling the slurry, and the second cooling chamber is mainly used for cooling the shaft, thereby improving the cooling effect, increasing the heat dissipation area, making the heat dissipation effect of the slurry better, and being able to stably control the temperature of the slurry, reducing the energy loss caused by the temperature failure during the grinding process and the agglomeration of the slurry causing the slurry grinding particle size to not be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] Figure 1 It is a structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the grinding machine of the utility model;
[0017] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;
[0018] In the figure: 1, grinding machine, 11, frame, 12, driving member, 13, grinding transmission shaft, 131, positioning groove, 14, grinding disc, 15, outer shell, 16, inner shell, 17, first cooling cavity, 18, second cooling cavity, 181, first cooling channel, 182, second cooling channel;
[0019] 2. Cooling mechanism, 21. Cooler, 22. Water pump, 23. Connector, 231. First connecting flow channel, 232. Second connecting flow channel, 233. Positioning portion;
[0020] 3. Filter mechanism, 31. Mounting seat, 32. Screen. DETAILED DESCRIPTION
[0021] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0022] like Figure 1The utility model is a schematic diagram of the structure of the utility model, a rare earth oxide slurry grinding cooling device, including a cooling mechanism 2 installed on a grinder 1, the grinder 1 includes a frame 11, a driving member 12, a grinding transmission shaft 13, a grinding disc 14, an outer shell 15 and an inner shell 16, the outer shell 15 is fixedly connected to the frame 11, the outer shell 15 is fixedly connected to the inner shell 16, the stability of the connection between the outer shell 15 and the inner shell 16 is increased, the inner shell 16 is arranged in the outer shell 15, and the gap between the inner shell 16 and the outer shell 15 forms a first cooling chamber 17, the driving member 12 is fixedly connected to the frame 11, the driving member 12 is transmission-connected to the input end of the grinding transmission shaft 13, the driving member 12 is used to provide power for the rotation of the grinding transmission shaft 13, the output end of the grinding transmission shaft 13 extends through the outer shell 15 to the inner cavity of the inner shell 16, the grinding disc 14 is installed on the grinding transmission shaft 13, and the grinding disc 14 is located in the inner shell 16, and a second cooling chamber 18 is opened in the grinding transmission shaft 13;
[0023] like Figure 1 As shown, the cooling mechanism 2 includes a cooler 21 for cooling the coolant and a water pump 22 for pumping the coolant into the first cooling chamber 17 and the second cooling chamber 18. The input end of the water pump 22 is connected to the output end of the cooler 21, and the output end of the water pump 22 is connected to the input end of the first cooling chamber 17 and the input end of the second cooling chamber 18. The input end of the cooler 21 is connected to the output end of the first cooling chamber 17 and the output end of the second cooling chamber 18. Through the design of the first cooling chamber 17 between the inner shell 16 and the outer shell 15 and the second cooling chamber 18 in the grinding transmission shaft 13, the internal and external double cooling of the grinder 1 is realized. The first cooling chamber 17 is mainly used for cooling the slurry, and the second cooling chamber 18 is mainly used for cooling the shaft, thereby improving the cooling effect, increasing the heat dissipation area, making the heat dissipation effect of the slurry better, and being able to stably control the temperature of the slurry, reducing the energy loss caused by the temperature control failure during the grinding process and the agglomeration of the slurry causing the slurry grinding particle size to not be reduced.
[0024] like Figure 2 , Figure 3 As shown, the cooling mechanism 2 includes a connector 23, which is composed of two semi-annular connectors, to facilitate quick installation, disassembly and replacement of the connector 23. The two connectors are fixed by bolts, the connector 23 is rotatably connected to the grinding drive shaft 13, the input end of the connector 23 is connected to the output end of the water pump 22, and the output end of the connector 23 is connected to the input end of the second cooling chamber 18.
[0025] like Figure 1 , Figure 2As shown, the connector 23 is annular in structure, and a first annular connecting flow channel 231 is provided on the inner ring of the connector 23, and a second connecting flow channel 232 extending radially along the connector 23 is provided on the connector 23, that is, the first connecting flow channel 231 extends along the circumference of the connector 23 and is connected end to end, one end of the second connecting flow channel 232 is connected to the first connecting flow channel 231, and the other end of the second connecting flow channel 232 extends to the surface of the connector 23 and is connected to the output end of the water pump 22, so that the coolant input by the water pump 22 can fill the first connecting flow channel 231 after passing through the second connecting flow channel 232, and the water pump 22, the cooler 21, the first cooling chamber 17 and the second cooling chamber 18 are connected by a pipeline.
[0026] like Figure 1 , Figure 2 As shown, the second cooling chamber 18 includes a first cooling channel 181 extending axially along the grinding drive shaft 13 and a second cooling channel 182 extending radially along the grinding drive shaft 13. The first cooling channel 181 and the second cooling channel 182 are connected, the output end of the first cooling channel 181 is connected to the input end of the cooler 21, and the second cooling channel 182 is connected to the first connecting channel 231. During the rotation of the grinding drive shaft 13, the second cooling channel 182 can continue to be connected to the first connecting channel 231, so that the coolant continues to enter the first cooling channel 181 and form a circulation loop of the cooler 21, the water pump 22 and the second cooling chamber 18.
[0027] like Figure 2 As shown, a positioning portion 233 is protruded on the inner ring of the connector 23, and a positioning groove 131 matching the positioning portion 233 is opened on the grinding transmission shaft 13. The positioning portion 233 is arranged in the positioning groove 131, so that the connector 23 can be quickly positioned and installed conveniently and quickly.
[0028] like Figure 3 As shown, the grinding machine 1 includes a filtering mechanism 3, which includes a mounting seat 31 and a screen 32. The mounting seat 31 is fixedly connected to the inner shell 16, a filtering hole is opened on the mounting seat 31, and the screen 32 is arranged in the filtering hole. The output end of the grinding transmission shaft 13 is rotatably connected to the mounting seat 31, and the filtering mechanism 3 is used to screen qualified slurry and allow qualified slurry to pass.
[0029] During the operation of the grinder 1, the water pump 22 pumps the coolant into the first cooling chamber 17 and the second cooling chamber 18. The first cooling chamber 17 is mainly used for cooling the slurry, and the second cooling chamber 18 is mainly used for cooling the shaft. The coolant in the first cooling chamber 17 and the second cooling chamber 18 flows back to the cooler 21 for heat dissipation and cooling, thereby continuously cooling the grinder, making the heat dissipation effect of the slurry better, and being able to stably control the temperature of the slurry, reducing the energy loss caused by the uncontrollable temperature during the grinding process and the agglomeration of the slurry causing the slurry grinding particle size to not be reduced, and extending the service life of the grinding drive shaft 13.
[0030] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A cooling device for rare earth oxide slurry grinding, comprising a cooling mechanism (2) mounted on a grinding machine (1), characterized in that: The grinding machine (1) comprises a frame (11), a driving member (12), a grinding transmission shaft (13), a grinding disc (14), an outer shell (15) and an inner shell (16); the outer shell (15) and the frame (11) are fixedly connected; the inner shell (16) is arranged in a gap inside the outer shell (15); and the gap between the inner shell (16) and the outer shell (15) forms a first cooling chamber (17); the driving member (12) and the frame (11) are fixedly connected; the driving member (12) and the frame (11) are fixedly connected; and the inner shell (16) and the frame (15) are fixedly connected. The driving member (12) is in driving connection with the input end of the grinding transmission shaft (13), the driving member (12) is used to provide power for the rotation of the grinding transmission shaft (13), the output end of the grinding transmission shaft (13) passes through the outer shell (15) and extends into the inner cavity of the inner shell (16), the grinding disc (14) is mounted on the grinding transmission shaft (13), and the grinding disc (14) is located in the inner shell (16), and a second cooling cavity (18) is opened in the grinding transmission shaft (13); The cooling mechanism (2) comprises a cooler (21) for cooling the cooling liquid and a water pump (22) for pumping the cooling liquid into the first cooling chamber (17) and the second cooling chamber (18); the input end of the water pump (22) is connected to the output end of the cooler (21); the output end of the water pump (22) is connected to the input end of the first cooling chamber (17) and the input end of the second cooling chamber (18); and the input end of the cooler (21) is connected to the output end of the first cooling chamber (17) and the output end of the second cooling chamber (18).
2. The rare earth oxide slurry grinding and cooling device according to claim 1, characterized in that: The cooling mechanism (2) comprises a connector (23), the connector (23) being rotatably connected to the grinding transmission shaft (13), the input end of the connector (23) being connected to the output end of the water pump (22), and the output end of the connector (23) being connected to the input end of the second cooling chamber (18).
3. The rare earth oxide slurry grinding and cooling device according to claim 2, characterized in that: The connector (23) is annular in structure, a first connecting flow channel (231) in the shape of an annulus is provided on the inner ring of the connector (23), a second connecting flow channel (232) extending radially along the connector (23) is provided on the connector (23), one end of the second connecting flow channel (232) is connected to the first connecting flow channel (231), and the other end of the second connecting flow channel (232) extends to the surface of the connector (23) and is connected to the output end of the water pump (22).
4. The rare earth oxide slurry grinding and cooling device as claimed in claim 3, characterized in that: The second cooling chamber (18) comprises a first cooling channel (181) extending axially along the grinding transmission shaft (13) and a second cooling channel (182) extending radially along the grinding transmission shaft (13); the first cooling channel (181) and the second cooling channel (182) are connected; the output end of the first cooling channel (181) is connected to the input end of the cooler (21); and the second cooling channel (182) is connected to the first connecting channel (231).
5. The rare earth oxide slurry grinding and cooling device according to claim 2, characterized in that: A positioning portion (233) is protruded from the inner ring of the connector (23), a positioning groove (131) matching the positioning portion (233) is formed on the grinding transmission shaft (13), and the positioning portion (233) is arranged in the positioning groove (131).
6. The rare earth oxide slurry grinding and cooling device according to claim 1, characterized in that: The grinding machine (1) comprises a filtering mechanism (3), the filtering mechanism (3) comprising a mounting seat (31) and a screen (32), the mounting seat (31) and an inner shell (16) are fixedly connected, a filtering hole is provided on the mounting seat (31), the screen (32) is arranged in the filtering hole, and the output end of the grinding transmission shaft (13) is rotatably connected to the mounting seat (31).
7. The rare earth oxide slurry grinding and cooling device according to claim 1, characterized in that: The outer shell (15) and the inner shell (16) are fixedly connected.