CN109530019B - Silicon carbide micropowder circulation grinding system - Google Patents
Silicon carbide micropowder circulation grinding system Download PDFInfo
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- CN109530019B CN109530019B CN201811440102.XA CN201811440102A CN109530019B CN 109530019 B CN109530019 B CN 109530019B CN 201811440102 A CN201811440102 A CN 201811440102A CN 109530019 B CN109530019 B CN 109530019B
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- cooling device
- air cooling
- stirring
- grinding chamber
- grinding
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- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 34
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 133
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000003756 stirring Methods 0.000 claims description 79
- 239000000463 material Substances 0.000 claims description 32
- 239000002002 slurry Substances 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D1/00—Devices using naturally cold air or cold water
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The silicon carbide micropowder circulation grinding system comprises a frame, a grinding device, a circulating pump, a water cooling device, a first air cooling device and a second air cooling device, wherein the middle part of the frame is rotationally connected with two sides of the middle part of the grinding device, the lower end of the grinding device is provided with a feed inlet, the feed inlet of the grinding device is communicated with the discharge outlet of the water cooling device through a pipeline, the feed inlet of the water cooling device is communicated with the outlet of the circulating pump through a pipeline, the inlet of the circulating pump is communicated with the discharge outlets of the first air cooling device and the second air cooling device through pipelines, a first discharge valve and a second discharge valve are respectively arranged on the pipelines connected with the circulating pump, the feed inlet of the first air cooling device and the discharge outlet of the second air cooling device are communicated with the grinding device through pipelines, and a first feed valve and a second feed valve are arranged on the pipelines communicated with the grinding device.
Description
Technical Field
The invention relates to the technical field of crushing machinery, in particular to a silicon carbide micro powder circulating grinding system.
Background
Silicon carbide is a product generated by the reaction of quartz sand and coke in an electric furnace, and has an atomic lattice crystal structure formed by covalent bonds in the molecular structure of silicon carbide, and has extremely high hardness and certain toughness. The silicon carbide micropowder is mainly used in the abrasive industry, has special requirements on the classification of the micropowder, and cannot contain large particles. In the grinding process of the traditional grinding device, as silicon carbide is hard, the grinding device is seriously damaged, so that the equipment maintenance cost is high.
In order to reduce the abrasion of the grinding device, the Chinese patent with the patent number of 201721812814.0 and the name of silicon carbide micro powder grinding device discloses the following technical scheme: the utility model provides a carborundum miropowder grinder includes frame, grinder, agitating unit, circulating pump, cooling device, grinder, agitating unit set up in the frame, grinder's lower extreme is equipped with the feed inlet, so that carborundum thick liquids get into grinder from grinder's lower extreme, grinder's upper end is equipped with the discharge gate, so that carborundum thick liquids flow out from grinder's upper end, circulating pump's import and export communicate with grinder's discharge gate and feed inlet respectively, so that thick liquids circulation flow, grinder's inner wall is equipped with first buffer layer, in order to reduce the collision and the wearing and tearing that carborundum caused grinder, agitating unit's agitating end sets up in grinder, in order to agitate carborundum thick liquids, make carborundum collision friction become powder, grinder is equipped with the water cooling layer, in order to cool down grinder's water cooling layer intercommunication, in cooling device and the water cooling layer.
This solution can reduce the wear on the grinding device, but part of the silicon carbide located in the grinding device, the cooling device can easily deposit in the corners and cannot be sufficiently ground, thereby affecting the quality of the silicon carbide micropowder.
Disclosure of Invention
In view of the above, it is necessary to provide a silicon carbide fine powder circulation polishing system capable of sufficiently polishing silicon carbide fine powder.
The utility model provides a carborundum miropowder circulation grinding system includes frame, grinder, circulating pump, water cooling device, first air cooling device, second air cooling device, the middle part of frame rotates with the both sides at grinder's middle part and is connected, grinder's lower extreme is equipped with the feed inlet, grinder's feed inlet and water cooling device's discharge gate pass through the pipeline intercommunication, water cooling device's feed inlet and circulating pump's export pass through the pipeline intercommunication, the import of circulating pump and respectively with first air cooling device and second air cooling device's discharge gate pass through the pipeline intercommunication, and be equipped with first bleeder valve and second bleeder valve on the pipeline that circulating pump and first air cooling device, second air cooling device are connected respectively, in order to control thick liquids get into the circulating pump from first air cooling device or second air cooling device, first air cooling device's feed inlet and second air cooling device's feed inlet pass through the pipeline intercommunication with grinder's discharge gate, be equipped with first feeder valve and second feeder valve on the pipeline of first air cooling device and grinder intercommunication, in order to control thick liquids get into first air cooling device or second air cooling device from grinder.
The beneficial effects are that: the silicon carbide micropowder circulating grinding system comprises a frame, a grinding device, a circulating pump, a water cooling device, a first air cooling device and a second air cooling device, wherein when the silicon carbide micropowder circulating grinding system is used, the first air cooling device is firstly turned on, the second air cooling device is turned off, after slurry is ground for a period of time, the first air cooling device is turned off, and the second air cooling device is turned on, so that the operation is repeated. Therefore, materials in the silicon carbide micro powder circulating grinding system can be fully ground, and the quality of the silicon carbide micro powder is improved.
Drawings
FIG. 1 is a schematic view of a preferred angle configuration of the circulating grinding system for silicon carbide powder according to the present invention.
FIG. 2 is a schematic view of another preferred angle of the circulating grinding system for silicon carbide micropowder according to the present invention.
Fig. 3 is a partial cross-sectional view of a silicon carbide micropowder circulation grinding system of the present invention.
FIG. 4 is a functional block diagram of the silicon carbide micropowder circulation grinding system of the present invention.
In the figure: the silicon carbide micro powder circulation grinding system 10, a frame 20, a grinding device 30, a circulating pump 40, a water cooling device 50, a first air cooling device 60, a first discharge valve 601, a first feed valve 602, a first containing tank 603, a second stirring motor 604, a first stirring rod 605, a first stirring blade 606, a second air cooling device 70, a second discharge valve 701, a second feed valve 702, a control device 80, a controller 801, a first pressure sensor 802 and a second pressure sensor 803.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Referring to fig. 1 to 3, a silicon carbide micropowder circulation grinding system 10 includes a frame 20, a grinding device 30, a circulation pump 40, a water cooling device 50, a first air cooling device 60 and a second air cooling device 70, wherein the middle part of the frame 20 is rotationally connected with two sides of the middle part of the grinding device 30, a feed inlet is arranged at the lower end of the grinding device 30, the feed inlet of the grinding device 30 is communicated with the discharge outlet of the water cooling device 50 through a pipeline, the feed inlet of the water cooling device 50 is communicated with the outlet of the circulation pump 40 through a pipeline, the inlet of the circulation pump 40 is communicated with the discharge outlets of the first air cooling device 60 and the second air cooling device 70 through a pipeline, a first discharge valve 601 and a second discharge valve 701 are respectively arranged on the pipelines connecting the circulation pump 40 with the first air cooling device 60 and the second air cooling device 70 so as to control slurry to enter the circulation pump 40 from the first air cooling device 60 or the second air cooling device 70, the feed inlet of the first air cooling device 60 and the second air cooling device 70 are communicated with the feed inlet of the grinding device 30 through a pipeline, and the first air cooling device 60 and the second air cooling device 70 are respectively arranged on the pipeline 702 connecting the circulation pump 40 and the first air cooling device 70 and the second air cooling device 70.
When the silicon carbide micropowder circulating grinding system 10 is used, the first air cooling device 60 is firstly turned on, the second air cooling device 70 is turned off, the first air cooling device 60 is turned off after slurry is ground for a period of time, and the second air cooling device 70 is turned on, so that the operation is repeated. Specifically, in a preferred embodiment, the first air cooling device 60 is turned off and the second air cooling device 70 is turned on after the circulating pump 40 pumps all the material from the first air cooling device 60. In this way, the fluidity of the slurry is enhanced, and the slurry can be sufficiently ground. Meanwhile, if the material is deposited at the bottom of the first air cooling device 60, the operator can observe the deposition of the material by eyes, thereby making a countermeasure to grind the deposited slurry again, thereby reducing the generation of the deposited material, and facilitating the material to be sufficiently ground.
Further, referring to fig. 4, the silicon carbide micro powder circulation grinding system 10 further includes a control device 80, where the control device 80 includes a controller 801, a first pressure sensor 802, and a second pressure sensor 803, the first pressure sensor 802, the second pressure sensor 803, the first discharge valve 601, the second discharge valve 701, the first feed valve 602, and the second discharge valve 701 are electrically connected to the controller 801, the first pressure sensor 802 is disposed at the bottom of the first air cooling device 60, the second pressure sensor 803 is disposed at the bottom of the second air cooling device 70, the controller 801 is provided with a low pressure threshold and a high pressure threshold, the first pressure sensor 802 collects pressure information of slurry in the first air cooling device 60, and transmits the pressure information to the controller 801, the controller 801 generates a first real-time pressure value according to the pressure information, and when the first real-time pressure value is lower than the low pressure threshold, the controller 801 closes the first discharge valve 601 and simultaneously opens the first feed valve 602; when the first real-time pressure value is higher than the high pressure threshold, the controller 801 opens the first discharge valve 601 while closing the first feed valve 602; the second pressure sensor 803 collects pressure information of the slurry in the second air cooling device 70 and transmits the pressure information to the controller 801, the controller 801 generates a second real-time pressure value according to the pressure information, and when the second real-time pressure value is lower than the low pressure threshold value, the controller 801 closes the second discharge valve 701 while opening the second feed valve 702; when the second real-time pressure value is above the high pressure threshold, the controller 801 opens the second outlet valve 701 while closing the second inlet valve 702.
Further, the grinding device 30 includes a support frame, a grinding chamber, a first stirring motor, a first stirring rod, and a plurality of stirring plates, the grinding chamber and the first stirring motor are disposed on the support frame, bearings are disposed on two sides of the support frame and are located in the middle of the support frame, corresponding support shafts are disposed on two sides of the grinding chamber, the support shafts are located in the middle of the grinding chamber, the support shafts are disposed in the bearings in a sleeved manner, so that the grinding chamber can be inverted by matching the bearings with the support shafts, first flanges are disposed at the upper end and the lower end of the grinding chamber, second flanges matched with the first flanges of the grinding chamber are disposed at the bottom of the support frame, so that the grinding chamber is fixed on the support frame, a water cooling cavity is disposed on the side wall of the grinding chamber, so as to cool slurry in the grinding chamber, the first stirring motor is disposed above the grinding chamber, the upper end of the first stirring rod is fixedly connected with a rotating shaft of the first stirring motor, the stirring plates are sleeved on the first stirring rod at equal intervals and fixedly connected with the first stirring rod, so that the first stirring motor drives the stirring plates to rotate, silicon carbide in slurry is mutually collided and ground, a plurality of through holes are formed in the disc surfaces of the stirring plates, slurry passes through the through holes of the stirring plates, a feed inlet is formed in the lower end of a grinding chamber, the feed inlet of the grinding chamber is communicated with a discharge port of a water cooling device 50 through a pipeline, a discharge port is formed in the upper end of the grinding chamber, the feed inlet of the grinding chamber and the discharge port of the grinding chamber are symmetrical about a supporting shaft, the grinding chamber is conveniently connected with the pipeline after being inverted, the discharge port of the grinding chamber is communicated with the feed inlet of a first air cooling device 60 and a second air cooling device 70 through pipelines, and the ground slurry enters the air cooling device from the discharge port of the grinding chamber, the circulation pump 40 is provided on a connection pipe between the air cooling device and the water cooling device 50 to circulate slurry between the air cooling device, the water cooling device 50, and the grinding chamber.
Further, the water cooling device 50 includes a water cooling chamber, a water cooling coil, a water cooling tank, and a water pump, wherein the upper end of the water cooling chamber is opened, the water cooling coil is disposed in the water cooling chamber, the water inlet and the water outlet of the water cooling coil are communicated with the water cooling tank through pipes, the upper end of the water cooling tank is opened so as to dissipate heat, and the water pump is disposed on the pipe between the water cooling coil and the water cooling tank so as to circulate water.
Further, the first air cooling device 60 includes a first material containing tank 603, a second stirring motor 604, a first stirring rod 605, and a first stirring blade 606, where the first material containing tank 603 is provided with a feed inlet and a discharge outlet, the feed inlet of the first material containing tank 603 is the feed inlet of the first air cooling device 60, the discharge outlet of the first material containing tank 603 is the discharge outlet of the first air cooling device 60, the second stirring motor 604 is disposed above the first material containing tank 603, a rotating shaft of the second stirring motor 604 is fixedly connected with an upper end of the first stirring rod 605, a lower end of the first stirring rod 605 is fixedly connected with the first stirring blade 606, the first stirring blade 606 is located in the material containing tank, and the first stirring blade 606 stirs the slurry in the material containing tank under the driving of the second stirring motor 604.
Further, the second air cooling device 70 includes second Cheng Liaoguan, third stirring motor, second stirring rod, second stirring blade, the second holds the material jar and is equipped with feed inlet and discharge gate, and the feed inlet that holds the material jar for the feed inlet of second air cooling device 70, the discharge gate that holds the material jar for the discharge gate of second air cooling device 70, third stirring motor set up in the top that holds the material jar of second, the pivot and the upper end fixed connection of second stirring rod of third stirring motor, the lower extreme and the second stirring blade fixed connection of second stirring rod, second stirring blade is located the material jar that holds of second, and under the drive of third stirring motor, the second stirring blade stirs the thick liquids in the material jar that holds of second.
The foregoing disclosure is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the scope of the invention, as it is understood by those skilled in the art that all or part of the above-described embodiments may be practiced with equivalents thereof, which fall within the scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a carborundum miropowder circulation grinding system which characterized in that: the slurry treatment device comprises a frame, a grinding device, a circulating pump, a water cooling device, a first air cooling device and a second air cooling device, wherein the middle part of the frame is rotationally connected with two sides of the middle part of the grinding device; the silicon carbide micro powder circulating grinding system further comprises a control device, the control device comprises a controller, a first pressure sensor and a second pressure sensor, the first pressure sensor, the second pressure sensor, a first discharge valve, a second discharge valve, a first feed valve and a second discharge valve are electrically connected with the controller, the first pressure sensor is arranged at the bottom of the first air cooling device, the second pressure sensor is arranged at the bottom of the second air cooling device, the controller is provided with a low pressure threshold value and a high pressure threshold value, the first pressure sensor collects pressure information of slurry in the first air cooling device and transmits the pressure information to the controller, the controller generates a first real-time pressure value according to the pressure information, and when the first real-time pressure value is lower than the low pressure threshold value, the controller closes the first discharge valve and simultaneously opens the first feed valve; when the first real-time pressure value is higher than the high-pressure threshold value, the controller opens the first discharge valve and simultaneously closes the first feed valve; the second pressure sensor collects pressure information of the slurry in the second air cooling device and transmits the pressure information to the controller, the controller generates a second real-time pressure value according to the pressure information, and when the second real-time pressure value is lower than a low-pressure threshold value, the controller closes the second discharge valve and simultaneously opens the second feed valve; when the second real-time pressure value is higher than the high-pressure threshold value, the controller opens the second discharge valve and simultaneously closes the second feed valve;
the first air cooling device comprises a first material containing tank, a second stirring motor, a first stirring rod and a first stirring blade, wherein the first material containing tank is provided with a feed inlet and a discharge outlet, the feed inlet of the first material containing tank is the feed inlet of the first air cooling device, the discharge outlet of the first material containing tank is the discharge outlet of the first air cooling device, the second stirring motor is arranged above the first material containing tank, a rotating shaft of the second stirring motor is fixedly connected with the upper end of the first stirring rod, the lower end of the first stirring rod is fixedly connected with the first stirring blade, the first stirring blade is positioned in the material containing tank, and the first stirring blade stirs slurry in the material containing tank under the driving of the second stirring motor;
the second air cooling device comprises a second Cheng Liaoguan, a third stirring motor, a second stirring rod and a second stirring blade, wherein the second material accommodating tank is provided with a feed inlet and a discharge outlet, the feed inlet of the second material accommodating tank is the feed inlet of the second air cooling device, the discharge outlet of the second material accommodating tank is the discharge outlet of the second air cooling device, the third stirring motor is arranged above the second material accommodating tank, a rotating shaft of the third stirring motor is fixedly connected with the upper end of the second stirring rod, the lower end of the second stirring rod is fixedly connected with the second stirring blade, the second stirring blade is positioned in the second material accommodating tank, and the second stirring blade stirs slurry in the second material accommodating tank under the driving of the third stirring motor;
the grinding device comprises a support frame, a grinding chamber, a first stirring motor, a first stirring rod and a plurality of stirring discs, wherein the grinding chamber and the first stirring motor are arranged on the support frame, bearings are arranged on two sides of the support frame and are positioned in the middle of the support frame, corresponding support shafts are arranged on two sides of the grinding chamber, the support shafts are positioned in the middle of the grinding chamber, the support shafts are sleeved in the bearings, so that the grinding chamber can be inverted through the cooperation of the bearings and the support shafts, the upper end and the lower end of the grinding chamber are also provided with first flanges, the bottom of the support frame is provided with second flanges matched with the first flanges of the grinding chamber so as to fix the grinding chamber on the support frame, the side wall of the grinding chamber is provided with a water cooling cavity so as to cool slurry in the grinding chamber, the first stirring motor is arranged above the grinding chamber, the upper end of the first stirring rod is fixedly connected with a rotating shaft of the first stirring motor, the stirring plates are sleeved on the first stirring rod at equal intervals and fixedly connected with the first stirring rod, so that the first stirring motor drives the stirring plates to rotate, silicon carbide in slurry is mutually collided and ground, a plurality of through holes are formed in the disc surfaces of the stirring plates, slurry passes through the through holes of the stirring plates, a feed inlet is formed in the lower end of the grinding chamber, the feed inlet of the grinding chamber is communicated with a discharge port of the water cooling device through a pipeline, a discharge port is formed in the upper end of the grinding chamber, the feed inlet of the grinding chamber and the discharge port of the grinding chamber are symmetrical about a supporting shaft, the grinding chamber is conveniently connected with the pipeline after being inverted, the discharge port of the grinding chamber is communicated with the feed inlet of the first air cooling device and the feed inlet of the second air cooling device through the pipeline, and the ground slurry alternately enters the first air cooling device from the discharge port of the grinding chamber through the first feed valve and the second feed valve, and the circulating pump is arranged on a connecting pipeline among the first air cooling device, the second air cooling device and the water cooling device so as to enable slurry to circulate among the first air cooling device, the second air cooling device, the water cooling device and the grinding chamber.
2. The silicon carbide micro powder circulation grinding system according to claim 1, wherein: the water cooling device comprises a water cooling chamber, a water cooling coil pipe, a water cooling pool and a water pump, wherein the upper end of the water cooling chamber is opened, the water cooling coil pipe is arranged in the water cooling chamber, a water inlet and a water outlet of the water cooling coil pipe are communicated with the water cooling pool through pipelines, the upper end of the water cooling pool is opened so as to facilitate heat dissipation, and the water pump is arranged on the pipeline between the water cooling coil pipe and the water cooling pool so as to enable water to circularly flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440102.XA CN109530019B (en) | 2018-11-29 | 2018-11-29 | Silicon carbide micropowder circulation grinding system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811440102.XA CN109530019B (en) | 2018-11-29 | 2018-11-29 | Silicon carbide micropowder circulation grinding system |
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| CN109530019A CN109530019A (en) | 2019-03-29 |
| CN109530019B true CN109530019B (en) | 2024-03-01 |
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| CN114950241A (en) * | 2022-06-08 | 2022-08-30 | 包头市开元数码有限公司 | Intelligent rare earth nanoscale wet grinding equipment and processing technology thereof |
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