CN110142107B - Double-deck ball-milling jar - Google Patents
Double-deck ball-milling jar Download PDFInfo
- Publication number
- CN110142107B CN110142107B CN201910422087.4A CN201910422087A CN110142107B CN 110142107 B CN110142107 B CN 110142107B CN 201910422087 A CN201910422087 A CN 201910422087A CN 110142107 B CN110142107 B CN 110142107B
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- tank
- inner tank
- groove
- ball milling
- double
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- 238000000498 ball milling Methods 0.000 title claims abstract description 61
- 238000003780 insertion Methods 0.000 claims description 37
- 230000037431 insertion Effects 0.000 claims description 37
- 238000005096 rolling process Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 2
- 230000033001 locomotion Effects 0.000 abstract description 18
- 239000000463 material Substances 0.000 abstract description 12
- 239000000843 powder Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 description 13
- 239000003082 abrasive agent Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 4
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000012864 cross contamination Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B02C17/10—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 with one or a few disintegrating members arranged in the container
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to a double-layer ball milling tank which comprises an inner tank and an outer tank, wherein the inner tank is sleeved in the outer tank, and the inner tank and the outer tank can rotate relatively. The double-layer ball milling tank can automatically realize the rotary motion around the axis of the ball milling tank under the condition of no external device by the relative rotation of the inner tank and the outer tank, thereby increasing one-weight rotary motion. The ball milling process has the advantages of more complete mixing of the materials, higher efficiency and more uniform granularity of the obtained powder.
Description
Technical Field
The invention relates to the technical field of ball milling, in particular to a double-layer ball milling tank.
Background
Ball mills are one type of equipment used in many industries for mixing or grinding powders. During operation, the materials to be mixed or ground are placed into a ball milling tank together with grinding balls and sealed, and the ball milling tank is clamped at a specific movement part of the ball mill. After the ball mill is started, the ball mill tank is driven to do rotation or shimmy motion. At this time, the material to be ground and the grinding balls in the ball milling tank move together with the ball milling tank, and meanwhile, the material to be ground is collided between the grinding balls or between the grinding balls and the inner wall of the ball milling tank for a plurality of times, so that the mixing or grinding of the powder is realized. Conventional ball milling tanks are generally cylindrical single-layer ball milling tanks, and suffer from a number of disadvantages. For example, during operation, multiple strong collisions occur between the grinding balls or between the grinding balls and the inner wall of the ball milling tank, giving off significant noise. Meanwhile, the single-layer ball milling tank can only make a heavy rotation motion along with the clamping of the ball mill, and the ball milling or mixing efficiency is lower. Although the planetary ball mill is designed and manufactured to replace the traditional single-shaft ball mill, the ball mill tank can rotate to a certain extent during revolution, double rotation movement is realized, and the ball milling or mixing efficiency is improved, but the complexity and cost of the ball mill are obviously improved. The damping material is filled between the inner cylinder and the outer cylinder of the ball milling tank, so that the noise generated during ball milling can be reduced to a certain extent; the corners of the inner cylinder and the bottom end of the inner cavity are respectively provided with an arc chamfer with the diameter of 30% -50% of the diameter of the inner cylinder, so that the formation of ball milling dead angles is avoided, for example, a ball milling tank with the publication number of CN204672348U is disclosed. However, this bowl still has the following disadvantages: the ball milling tank is double-layered, but the inner tank and the outer tank are actually tightly combined into a whole, and can still realize at most two rotary motions just like the traditional single-layer ball milling tank.
Disclosure of Invention
The invention aims to improve the aim that the ball milling tank in the prior art is double-layered, but the inner tank and the outer tank are actually tightly combined into a whole, and can still realize at most two rotary motions just like the traditional single-layered ball milling tank, thereby providing the double-layered ball milling tank.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the double-layer ball milling tank comprises an inner tank and an outer tank, wherein the inner tank is sleeved in the outer tank, and the inner tank and the outer tank can rotate relatively. Through the relative rotation of the inner tank and the outer tank, the inner tank can automatically realize the rotary motion around the axis of the inner tank under the condition of no external device, thereby increasing a heavy rotary motion. The ball milling process has the advantages of more complete mixing of the materials, higher efficiency and more uniform granularity of the obtained powder.
In a further scheme, be provided with the fixed slot on the inner tank, the fixed slot is embedded to have antifriction bearing, antifriction bearing's inner ring is provided with the metal sheet, be provided with the insertion groove on the metal sheet, the inner wall of outer jar is provided with and is used for inserting the lug of insertion groove, the height of lug is greater than the degree of depth of insertion groove. The relative rotation of the inner tank and the outer tank is realized through the cooperation of the convex blocks and the insertion grooves. Meanwhile, through the cooperation of the insertion groove and the protruding block, the synchronous movement of the inner ring of the rolling bearing and the outer tank can be ensured, and the convenience of the inner tank can be ensured. The inner tank and the outer tank can be assembled by only inserting the protruding blocks into the insertion grooves and tightly covering the outer tank cover.
In a further scheme, the inner tank comprises an inner tank partition plate and an inner tank body, an annular groove is formed in the lower end face of the inner tank partition plate, an annular groove is formed in the upper end face of the inner tank body, an annular groove in the lower end face of the inner tank partition plate and an annular groove in the upper end face of the inner tank body can be closed to form an annular cavity, and a sealing ring is arranged in the annular cavity. The air tightness of the device is improved.
In a further scheme, the diameter of the cavity of the inner tank is larger than 33.4mm, and arc chamfers with the diameter of 5-10 mm are arranged between the side walls of the cavity of the inner tank and the top plate and the bottom plate of the cavity of the inner tank respectively. Avoiding ball milling or mixing dead angles, simultaneously enabling the grinding balls to be fully accelerated and improving ball milling efficiency. In addition, the circular arc chamfer angle also makes the inner tank cavity easier to clean, and abrasive materials can not remain in dead angles, so that the abrasive materials are prevented from being mixed with materials ground next time after being remained, and abrasive material cross contamination is caused.
In a further scheme, the top and the bottom of the inner tank are both provided with the insertion groove, the outer tank comprises an outer tank cover and an outer tank body, and the bottom of the outer tank cover and the inner wall of the tank bottom of the outer tank body are provided with the protruding blocks. The outer tank and the inner tank are connected with the insertion groove only through the protruding blocks, and other positions are not contacted, so that noise generated by ball milling of the inner tank is greatly attenuated, and noise pollution during the operation of the ball mill is reduced.
In a further scheme, the bottom of the fixed groove is provided with a step groove, and the groove diameter of the step groove is smaller than that of the fixed groove. The rotation of the rolling bearing is ensured.
In a further aspect, the metal plate is welded to an inner ring of the rolling bearing, and an outer ring of the rolling bearing is welded to a groove wall of the fixed groove.
In a further aspect, the insertion groove is a polygonal groove.
In further scheme, still include the locating rod, the inner tank still includes interior tank cap, the up end of interior tank cap is provided with the through-hole, outer tank cap is provided with the locating hole, is provided with spacing hole on the metal sheet that is located the insertion groove at the top of inner tank, the locating rod can run through in proper order the through-hole, locating hole insert spacing hole. The positioning and the assembly of the outer tank and the inner tank are convenient.
In a further scheme, the inner wall of the inner tank cover is in threaded connection with the outer wall of the inner tank body, the inner wall of the outer tank cover is in threaded connection with the outer wall of the outer tank body, and patterns are formed on the outer wall of the inner tank cover and the outer wall of the outer tank cover. Friction force is increased through the decorative pattern, so that the inner and outer tank covers can be conveniently screwed or unscrewed.
Compared with the prior art, the invention has the beneficial effects that:
1. the double-layer ball milling tank rotates relative to the outer tank through the inner tank. The inner tank can automatically realize the rotary motion around the axis of the double-layer ball milling tank without an external device, thereby increasing one-time rotary motion. The ball milling process has the advantages of more complete mixing of the materials, higher efficiency and more uniform granularity of the obtained powder.
2. This double-deck ball-milling jar has avoided ball-milling or mixed dead angle through the circular arc chamfer, also makes the grinding ball fully accelerate simultaneously, improves ball-milling efficiency. In addition, the circular arc chamfer angle also makes the inner tank cavity easier to clean, and abrasive materials can not remain in dead angles, so that the abrasive materials are prevented from being mixed with materials ground next time after being remained, and abrasive material cross contamination is caused.
3. The double-layer ball milling tank can ensure the synchronous movement of the inner ring of the rolling bearing and the outer tank and ensure the convenience of the inner tank through the matching of the insertion groove and the convex blocks. The inner tank and the outer tank can be assembled by only inserting the protruding blocks into the insertion grooves and tightly covering the outer tank cover.
4. This double-deck ball-milling jar increases frictional force through the decorative pattern, is convenient for screw up or unscrew of inside and outside cover.
5. The outer tank and the inner tank of the double-layer ball milling tank are connected with the insertion groove only through the protruding blocks, and other positions are not contacted, so that noise generated by ball milling of the inner tank is greatly attenuated, and noise pollution during the operation of the ball mill is reduced.
Drawings
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, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a double-layer ball milling tank according to an embodiment of the present invention.
Description of the drawings
The outer tank 1, the outer tank cover 101, the outer tank body 102, the inner tank 2, the inner tank cover 201, the inner tank partition 202, the inner tank body 203, the insertion groove 3, the rolling bearing 4, the metal plate 5, the annular groove 6, the convex block 7, the step groove 8, the circular arc chamfer 9, the positioning rod 10, the through hole 11, the positioning hole 12, the limiting hole 13 and the fixing groove 14.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Referring to fig. 1, the embodiment schematically discloses a double-layer ball milling tank, which comprises an outer tank 1 and an inner tank 2, wherein the inner tank 2 is sleeved in the outer tank 1, and the inner tank 2 and the outer tank 1 can rotate relatively. As a specific embodiment, the inner tank 2 is provided with a fixing groove 14, the fixing groove 14 is embedded with the rolling bearing 4, the inner ring of the rolling bearing 4 is provided with a metal plate 5, the metal plate 5 is provided with an insertion groove 3, the inner wall of the outer tank 1 is provided with a protruding block 7 for being inserted into the insertion groove 3, and the height of the protruding block 7 is larger than the depth of the insertion groove. The outer pot and the rolling bearing keep synchronous movement. Preferably, a deep groove ball bearing with an outer diameter of 30mm and an inner diameter of 17mm is used in this solution. Of course, other rolling bearings 4 of the prior art may be used while ensuring a relative rotation of the inner and outer cans 2, 1. The outer can 1 is fixed by external clamping by inserting the projection 7 into the insertion groove 3, so that the metal plate 5 connected with the projection 7 and the inner ring of the rolling bearing 4 welded or interference-fitted with the metal plate 5 are fixed. When the outer clamp rotates or swings in the ball mill, the grinding balls and materials in the inner tank move along with the outer clamp. The impact of the grinding ball and the inner tank drives the inner tank and the outer ring of the rolling bearing 4 to rotate under the limit of the rolling bearing 4, thereby forming the relative rotation of the inner tank and the outer tank. However, it is easy to understand that the rotation speeds of the outer ring and the inner ring of the rolling bearing 4 are decreased by a certain degree according to the ball transmission efficiency, so that the rotation speeds of the outer ring and the inner ring are inconsistent, and the outer pot 1 is not contacted with other positions of the inner pot 2 because the height of the protruding block 7 is larger than the depth of the insertion groove 3, so that the relative rotation of the inner pot 2 and the outer pot 1 is finally realized, and the inner pot 2 can automatically realize the rotation movement around the axis of the ball milling pot without an external device, thereby increasing a heavy rotation movement. For example, when the ball mill is applied to a single-shaft ball mill, the ball mill drives the outer tank 1 and the inner tank 2 to rotate, and the inner tank 2 and the outer tank 1 rotate relatively, so that double rotary ball milling can be realized; and in the same way, when the ball mill is applied to a planetary ball mill, triple rotary ball milling can be realized. This results in more thorough mixing of the materials after ball milling, higher efficiency and more uniform particle size of the resulting powder.
Meanwhile, in the scheme, the inserting grooves 3 are formed in the top and the bottom of the inner tank, and the outer tank 1 comprises an outer tank cover 101 and an outer tank body 102. The bottom of the outer tank cover 101 and the inner wall of the tank bottom of the outer tank body 102 are both provided with the convex blocks 7, and through the cooperation of the insertion grooves and the convex blocks, the synchronous movement of the inner ring of the rolling bearing and the outer tank can be ensured, the convenience of the inner tank can be ensured, the insertion grooves can be also provided with through holes, and the convex columns need to be prevented from touching the bottom of the fixing groove after the inner tank and the outer tank are sealed during design. And the outer tank is connected with the inner tank only through the convex blocks and the insertion grooves, other fixing devices are not needed, and other positions of the outer tank and the inner tank are not contacted, so that noise generated by ball milling of the inner tank is greatly attenuated, and noise pollution during the working of the ball mill is reduced. The inner tank and the outer tank can be assembled by only inserting the protruding blocks into the insertion grooves and tightly covering the outer tank cover.
In a further embodiment, in order to ensure that the rolling bearing 4 can rotate, the groove bottom of the fixed groove 14 is provided with a stepped groove 8, the groove diameter of the stepped groove 8 being smaller than the groove diameter of the fixed groove 14. Preferably, the depth of the stepped groove 8 in this embodiment is 1mm. It is easy to understand that the groove depth of the step groove 8 is not limited under the condition that the rolling bearing is ensured to be rotatable. At the same time, the metal plate 5 is welded and combined with the inner ring of the rolling bearing 4, and the outer ring of the rolling bearing 4 is welded and combined with the groove wall of the fixed groove 14. Of course, other combination modes in the prior art, such as interference fit, can also be adopted under the condition that the metal plate 5 and the inner ring, the inner tank partition plate and the inner tank body and the outer ring can respectively move integrally.
In addition, the insertion groove in this embodiment is a polygonal groove, and as a specific embodiment, the insertion groove 3 in this embodiment is a rectangular groove, so that the insertion groove 3 and the bump 7 are prevented from sliding during rotation. It is easy to understand that the shape of the insertion groove is not limited and may be triangular, diamond, etc. while ensuring that the insertion groove 3 and the projection 7 do not slide relatively when the ball mill pot moves as a whole.
In this embodiment, the diameter of the cavity of the inner tank 2 is greater than 33.4mm, and an arc chamfer 9 with a diameter of 5-10 mm is arranged between the side wall of the cavity of the inner tank 2 and the top plate and the bottom plate of the cavity of the inner tank 2. The design of the arc chamfer 9 avoids ball milling or mixing dead angles, and simultaneously ensures that the grinding balls can be sufficiently accelerated, thereby improving the ball milling efficiency. In addition, the circular arc chamfer 9 also enables the cavity of the inner tank 2 to be cleaned more easily, abrasive materials cannot remain in dead corners, and the abrasive materials are prevented from being mixed with materials ground next time after being remained, so that abrasive material cross contamination is caused.
Meanwhile, in this embodiment, the outer can 1 further comprises a positioning rod 10, the outer can cover 101 is provided with a through hole 11, the inner can cover 201 is provided with a positioning hole 12, the metal plate 5 in the insertion groove 3 at the top of the inner can 2 is provided with a limiting hole 13, and the positioning rod 10 can penetrate through the through hole 11 and the positioning hole 12 and be inserted into the limiting hole 13. When the outer can cover 101 is installed, the positioning rod 10 is inserted into the through hole 11 of the outer can cover 101 and the positioning hole 12 of the inner can cover 201 in sequence, then the positioning rod 10 is inserted into the limit hole 13 on the metal plate 5 in the insertion groove 3 at the top of the inner can 2, and then the outer can cover 101 and the outer can body 102 are screwed tightly, and then the positioning rod 10 is taken out. By the temporary matching of the positioning rod 10, the correct positioning of the convex block of the outer tank cover 201 and the insertion groove 3 on the inner tank is realized
In addition, in order to maintain the air tightness of the inner tank 1, as a preferred embodiment, the inner tank 2 further includes an inner tank partition 202 and an inner tank body 203, the lower end surface of the inner tank partition 202 is provided with an annular groove 6, the upper end surface of the inner tank body 203 is provided with an annular groove 6, the annular groove 6 of the lower end surface of the inner tank partition 202 and the annular groove 6 of the upper end surface of the inner tank body 103 can be closed to form an annular cavity, and a sealing ring is arranged in the annular cavity, so that the air tightness of the inner tank is improved. In this embodiment, the inner wall of the inner can lid 201 is in threaded connection with the outer wall of the inner can body 203, the inner wall of the outer can lid 101 is in threaded connection with the outer wall of the outer can body 102, and the outer wall of the inner can lid 201 and the outer wall of the outer can lid 101 are provided with patterns. The friction force is increased through the patterns, so that the outer tank cover can be conveniently screwed or unscrewed.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (8)
1. The utility model provides a double-deck ball-milling jar, its characterized in that, includes inner tank and outer jar, the inner tank cover is located in the outer jar, the inner tank with but outer jar relative rotation, the cavity diameter of inner tank is greater than 33.4mm, just should the lateral wall of the cavity of inner tank respectively with have the circular arc chamfer that the diameter is 5~10 mm between roof, the bottom plate of the cavity of inner tank, be provided with the fixed slot on the inner tank, the fixed slot is embedded to have antifriction bearing, antifriction bearing's inner ring is provided with the sheetmetal, be provided with the insertion groove on the sheetmetal, the inner wall of outer jar is provided with and is used for inserting the lug of insertion groove, the height of lug is greater than the degree of depth of insertion groove, and outer jar and other positions of inner tank are not contacted, have realized the relative rotation of inner tank and outer jar, realize triple ball-milling when using on the planetary ball mill.
2. The double-layer ball milling tank according to claim 1, wherein the inner tank comprises an inner tank partition plate and an inner tank body, an annular groove is formed in the lower end face of the inner tank partition plate, an annular groove is formed in the upper end face of the inner tank body, the annular groove in the lower end face of the inner tank partition plate and the annular groove in the upper end face of the inner tank body can be closed to form an annular cavity, and a sealing ring is arranged in the annular cavity.
3. The double-layer ball milling tank according to claim 1, wherein the insertion grooves are formed in the top and the bottom of the inner tank, the outer tank comprises an outer tank cover and an outer tank body, and the protruding blocks are arranged on the bottom of the outer tank cover and the inner wall of the bottom of the outer tank body.
4. The double-layer ball milling pot according to claim 1, wherein the bottom of the fixing groove is provided with a step groove, and the diameter of the step groove is smaller than that of the fixing groove.
5. The double-layer ball milling pot according to claim 1, wherein the metal plate and the inner ring of the rolling bearing are combined through interference fit or welding, and the outer ring of the rolling bearing and the groove wall of the fixed groove are combined through interference fit or welding.
6. The double layer ball milling pot of claim 1, wherein the insertion groove is a polygonal groove.
7. The double layer ball milling pot of claim 3, further comprising a locating bar; the inner tank still includes the inner tank lid, the up end of inner tank lid is provided with the through-hole, outer tank lid is provided with the locating hole, is provided with spacing hole on the metal sheet that is located the insertion groove at the top of inner tank, the locating rod can run through in proper order the through-hole, locating hole insert spacing hole.
8. The double-layer ball milling tank according to claim 7, wherein the inner wall of the inner tank cover is in threaded connection with the outer wall of the inner tank body, the inner wall of the outer tank cover is in threaded connection with the outer wall of the outer tank body, and the outer wall of the inner tank cover and the outer wall of the outer tank cover are provided with patterns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422087.4A CN110142107B (en) | 2019-05-21 | 2019-05-21 | Double-deck ball-milling jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910422087.4A CN110142107B (en) | 2019-05-21 | 2019-05-21 | Double-deck ball-milling jar |
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| Publication Number | Publication Date |
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| CN110142107A CN110142107A (en) | 2019-08-20 |
| CN110142107B true CN110142107B (en) | 2024-03-29 |
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| CN201910422087.4A Active CN110142107B (en) | 2019-05-21 | 2019-05-21 | Double-deck ball-milling jar |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114653437A (en) * | 2022-02-28 | 2022-06-24 | 寿县中能新材料科技有限公司 | Double-layer ball-milling equipment for processing high-purity quartz sand |
| CN116493096B (en) * | 2023-04-26 | 2023-09-19 | 邹平伟佳新型材料科技有限公司 | Cooling device and method for ball mill |
| CN117960317B (en) * | 2024-04-01 | 2024-07-02 | 西华大学 | Turnover vibration type grinding device and method |
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