CN113578463A - Ball mill for mineral processing engineering with shock-absorbing function - Google Patents
Ball mill for mineral processing engineering with shock-absorbing function Download PDFInfo
- Publication number
- CN113578463A CN113578463A CN202110826575.9A CN202110826575A CN113578463A CN 113578463 A CN113578463 A CN 113578463A CN 202110826575 A CN202110826575 A CN 202110826575A CN 113578463 A CN113578463 A CN 113578463A
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- Prior art keywords
- fixedly connected
- ball mill
- platform
- supporting platform
- mineral processing
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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
- B02C17/10—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
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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
- B02C17/02—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 perforated container
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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
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/1835—Discharging devices combined with sorting or separating of material
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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
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- 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
- B02C17/24—Driving mechanisms
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a ball mill with shock absorption function for mineral processing engineering, which belongs to the technical field of mineral processing machinery and comprises a base, wherein a telescopic rod is fixedly connected with the base, a supporting platform is fixedly connected with the telescopic rod, a spring is sleeved on the telescopic rod, two sides of the supporting platform are both connected onto the base in a sliding manner, a second supporting frame is fixedly connected with the top of the supporting platform, a driving motor is fixedly connected with the second supporting frame, and an output shaft of the driving motor is fixedly connected with a driving wheel. Can cause damage to mechanical equipment and seriously affect the service life of the machine.
Description
Technical Field
The invention relates to the technical field of mining processing machinery, in particular to a ball mill with a damping function for mining processing engineering.
Background
The ball mill is a key equipment for crushing materials, and is characterized by that a certain quantity of steel balls are placed in the cylinder body of said mill as grinding medium, and said mill can be extensively used in the production industries of cement, silicate product, new-type building material, refractory material, chemical fertilizer, nonferrous metal mineral separation and glass ceramic, etc. and can be used for dry-type or wet-type grinding of various ores and other grindable materials.
But prior art's ball mill, the material granule that the during operation was broken out is still great, can't be put into use, needs fine crushing once more, just can use, and the ball mill can produce very big vibrations at the during operation, can cause the harm for mechanical equipment, seriously influences mechanical life.
Therefore, the technical personnel in the field provide a ball mill for the mineral processing engineering with the shock absorption function to solve the problems in the background technology.
Disclosure of Invention
The invention aims to provide a ball mill with a damping function for mineral processing engineering, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the ball mill with the damping function for the mineral processing engineering comprises a base, wherein a telescopic rod is fixedly connected with the base, a supporting platform is fixedly connected with the telescopic rod, a spring is sleeved on the telescopic rod, two sides of the supporting platform are slidably connected to the base, a supporting frame II is fixedly connected to the top of the supporting platform, a driving motor is fixedly connected to the supporting frame II, a driving wheel is fixedly connected to an output shaft of the driving motor, the driving wheel is meshed with a driven wheel, a connecting shaft is fixedly connected to the driven wheel, a crushing barrel is fixedly connected to the connecting shaft, crushing balls are arranged in the crushing barrel, a fixing barrel is arranged outside the crushing barrel, a supporting frame I is fixedly connected to two sides of the outer wall of the fixing barrel, the supporting frame I is fixedly connected to the supporting platform, and a plurality of material distributing tables are fixedly connected to the inner wall of the fixing barrel, divide all to be provided with the stock chest between the material platform, all be provided with the crush ring in the stock chest, the equal fixed connection of crush ring is on smashing the bucket outer wall, smash the bucket and keep away from one side of connecting axle and seted up the feed inlet, smash the bucket with a plurality of feed opening and discharge gate have been seted up respectively to the fixed bucket.
As a further scheme of the invention: the spout has all been seted up to the supporting platform both sides, the equal sliding connection of spout has the gag lever post, the equal fixed connection of gag lever post is on the base, the equal fixedly connected with limiting plate in supporting platform bottom both sides, the equal sliding connection of limiting plate is on the base, and this structure is favorable to increasing supporting platform's stability, avoids the supporting platform slope.
As a still further scheme of the invention: driving motor's one side fixedly connected with support column is kept away from to supporting platform, support column fixedly connected with inlet pipe, the feed inlet is passed to inlet pipe one end, inlet pipe other end fixedly connected with link one, a link fixed connection is on the fixed bucket, and this structure is favorable to the internal menstruation of twin crushing bucket reinforced, and has ensured the stability of inlet pipe.
As a still further scheme of the invention: the material guide device is characterized in that a material guide platform is arranged at the bottom of the fixed barrel, the bottom of the material guide platform is fixedly connected with the supporting platform, the cross section of the material guide platform is of a triangular structure, and the material guide device is convenient for a user to collect materials on one side of the material guide ball mill after being processed.
As a still further scheme of the invention: the crush ring has a plurality of, and every the crush ring homorotation is connected with a plurality of rolling wheel, a plurality of the rolling wheel is located the stock chest, and this structure is favorable to improving the effect that rolls and the speed that rolls.
As a still further scheme of the invention: the protective housing is arranged between the driving motor and the crushing barrel, the protective housing is sleeved on the driving wheel and the driven wheel, the protective housing is fixedly connected with a second connecting frame, the second connecting frame is fixedly connected to a second supporting frame, and the structure avoids the driving wheel and the driven wheel from causing injury to a user.
As a still further scheme of the invention: divide the both sides of material platform inner circle all to be provided with the chamfer, this structure is convenient for the material get into in the stock chest.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the output shaft of the driving motor drives the driving wheel to rotate, the driving wheel drives the driven wheel meshed with the driving wheel to rotate, the driven wheel drives the crushing barrel to rotate through the connecting shaft, the crushing barrel crushes the materials inside through the crushing ball, the crushed granular ore materials fall from the discharge opening, the materials firstly enter the storage tank through the material distribution table, and the rolling ring finely mills the materials in the storage tank through the rolling wheel, so that the problem that the ball mill in the prior art is still large in size of the crushed material particles during working, cannot be put into use and needs to be crushed again to be used is solved.
2. According to the ball mill, the support platform is driven to slide up and down in the base through the opening and closing of the spring and the telescopic end of the telescopic rod, so that the problem that mechanical equipment is damaged due to vibration of the ball mill during working and the service life of machinery is seriously affected is solved. The sliding grooves on the supporting platform slide on the limiting rods, and the displacement of the limiting supporting platform avoids the inclination of the supporting platform, so that the ball mill is damaged.
3. In the invention, the finely ground material falls from the discharge port, and the processed material falls to one side of the ball mill through the material guide platform, so that the material is convenient for a user to collect; the protective shell prevents the driving wheel and the driven wheel from causing injury to a user; the inlet pipe facilitates the user to go through reinforced in smashing the bucket, and the inlet pipe slope is then avoided or fall down with the support column to link one.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the base of the present invention;
FIG. 3 is a schematic cross-sectional view of the stationary barrel of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is a schematic view of the connection of the driving motor according to the present invention;
FIG. 6 is a schematic view of the connection of the feed pipe in the present invention.
In the figure: 1. a base; 2. a telescopic rod; 3. a spring; 4. a support platform; 5. a chute; 6. a limiting rod; 7. a first support frame; 8. fixing the barrel; 9. a crushing barrel; 10. crushing the balls; 11. a feeding port; 12. grinding and pressing the ring; 13. a rolling wheel; 14. a material distributing table; 15. a storage tank; 16. a discharge port; 17. a feed inlet; 18. a feed pipe; 19. a first connecting frame; 20. a support pillar; 21. a material guiding platform; 22. a second support frame; 23. a drive motor; 24. a driving wheel; 25. a driven wheel; 26. a connecting shaft; 27. a protective shell; 28. a second connecting frame; 29. and a limiting plate.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the ball mill for mineral processing engineering with a damping function comprises a base 1, wherein a telescopic rod 2 is fixedly connected to the base 1, a supporting platform 4 is fixedly connected to the telescopic rod 2, a spring 3 is sleeved on the telescopic rod 2, two sides of the supporting platform 4 are both slidably connected to the base 1, a supporting frame two 22 is fixedly connected to the top of the supporting platform 4, a driving motor 23 is fixedly connected to the supporting frame two 22, an output shaft of the driving motor 23 is fixedly connected to a driving wheel 24, the driving wheel 24 is meshed with a driven wheel 25, the driven wheel 25 is fixedly connected to a connecting shaft 26, the connecting shaft 26 is fixedly connected to a crushing barrel 9, a crushing ball 10 is arranged in the crushing barrel 9, a fixed barrel 8 is arranged outside the crushing barrel 9, two sides of the outer wall of the fixed barrel 8 are both fixedly connected to supporting frames one 7, the supporting frames one 7 are both fixedly connected to the supporting platform 4, and a plurality of material distributing tables 14 are fixedly connected to the inner wall of the fixed barrel 8, divide and all be provided with stock chest 15 between the material platform 14, all be provided with milling ring 12 in the stock chest 15, the equal fixed connection of milling ring 12 is on smashing bucket 9 outer wall, smashes bucket 9 and keeps away from one side of connecting axle 26 and has seted up feed inlet 17, smashes bucket 9 and has seted up a plurality of feed opening 11 and discharge gate 16 respectively with fixed bucket 8.
According to the invention, after the material is coarsely crushed by the crushing ball 10, the material falls from the feed opening 11 and falls into the material storage tank 15 through the material separating table 14, the material is further crushed and milled by the milling ring 12, so that the problems that the material particles crushed during operation of the ball mill in the prior art are still large, cannot be put into use and need to be finely crushed again to be used are solved, and the ball mill generates great vibration during operation through the cooperation of the spring 3 and the telescopic rod 2, so that the ball mill can damage mechanical equipment and seriously influence the service life of machinery.
The structure is beneficial to increasing the stability of the supporting platform 4 and avoiding the inclination of the supporting platform 4;
the supporting column 20 is fixedly connected to one side, away from the driving motor 23, of the supporting platform 4, the feeding pipe 18 is fixedly connected to the supporting column 20, one end of the feeding pipe 18 penetrates through the feeding hole 17, the other end of the feeding pipe 18 is fixedly connected with the first connecting frame 19, and the first connecting frame 19 is fixedly connected to the fixed barrel 8;
the bottom of the fixed barrel 8 is provided with a material guide platform 21, the bottom of the material guide platform 21 is fixedly connected with the supporting platform 4, and the section of the material guide platform 21 is of a triangular structure, so that the processed material is conveniently guided to one side of the ball mill, and a user can conveniently collect the material;
the grinding rings 12 are provided with a plurality of grinding wheels 13, each grinding ring 12 is rotatably connected with the plurality of grinding wheels 13, and the plurality of grinding wheels 13 are positioned in the storage tank 15, so that the structure is favorable for improving the grinding effect and the grinding speed;
a protective shell 27 is arranged between the driving motor 23 and the crushing barrel 9, the protective shell 27 is sleeved on the driving wheel 24 and the driven wheel 25, the protective shell 27 is fixedly connected with a second connecting frame 28, the second connecting frame 28 is fixedly connected to a second supporting frame 22, and the structure avoids the driving wheel 24 and the driven wheel 25 from causing damage to a user;
both sides of the inner ring of the material distribution table 14 are provided with chamfers, and the material can conveniently enter the material storage groove 15 through the structure.
The working principle of the invention is as follows:
during the use, the ore material is added in smashing bucket 9 from inlet pipe 18, then start driving motor 23, driving motor 23 drives drive wheel 24 through the output shaft and rotates, drive wheel 24 drives rather than the driven wheel 25 rotation of meshing, it rotates to drive smashing bucket 9 through connecting axle 26 from driving wheel 25, it smashes the material of inside through smashing ball 10 to smash bucket 9, granule ore material after smashing falls down from feed opening 11, at first the material gets into storage tank 15 through passing through material distribution table 14 in, grind ring 12 is through grinding wheel 13 to the material in the storage tank 15 through going meticulously grinding, the ball mill of prior art has been solved, the material granule that the during operation breakage comes out is still great, can't put into use, need finely cut again, the problem that just can use.
The finely ground materials fall from the discharge port 16, and the processed materials fall to one side of the ball mill through the material guide platform 21, so that the materials are convenient for a user to collect; the protective shell 27 prevents the driving wheel 24 and the driven wheel 25 from causing injury to a user; the feed pipe 18 is convenient for a user to feed materials into the crushing barrel 9, and the first connecting frame 19 and the supporting column 20 prevent the feed pipe 18 from inclining or falling down.
In addition, when the ball mill works, the supporting platform 4 is driven by the opening and closing of the spring 3 and the telescopic end of the telescopic rod 2 to slide up and down in the base 1, so that the problem that the ball mill shakes to damage mechanical equipment during working and seriously influences the service life of machinery is solved. The spout 5 on supporting platform 4 slides on gag lever post 6, and the displacement of spacing supporting platform 4 avoids supporting platform 4 to incline, leads to the ball mill to damage.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a ball mill for mineral processing engineering with shock-absorbing function, includes base (1), its characterized in that: the grinding device is characterized in that the base (1) is fixedly connected with an expansion link (2), the expansion link (2) is fixedly connected with a supporting platform (4), the expansion link (2) is sleeved with a spring (3), two sides of the supporting platform (4) are connected to the base (1) in a sliding mode, the top of the supporting platform (4) is fixedly connected with a second supporting frame (22), the second supporting frame (22) is fixedly connected with a driving motor (23), an output shaft of the driving motor (23) is fixedly connected with a driving wheel (24), the driving wheel (24) is meshed with a driven wheel (25), the driven wheel (25) is fixedly connected with a connecting shaft (26), the connecting shaft (26) is fixedly connected with a grinding barrel (9), grinding balls (10) are arranged in the grinding barrel (9), a fixing barrel (8) is arranged outside the grinding barrel (9), and two sides of the outer wall of the fixing barrel (8) are fixedly connected with a first supporting frame (7), the utility model discloses a crushing machine, including support frame (7), storage tank (15), grinding ring (12), crushing bucket (9), connecting axle (26), crushing bucket (9), support frame (7) equal fixed connection on supporting platform (4), just gu fixed bucket (8) inner wall fixedly connected with a plurality of divides material platform (14), it all is provided with stock chest (15) between material platform (14) to divide, all be provided with grinding ring (12) in stock chest (15), the equal fixed connection of grinding ring (12) is on crushing bucket (9) outer wall, one side of connecting axle (26) is kept away from in crushing bucket (9) has seted up feed inlet (17), crushing bucket (9) with a plurality of feed opening (11) and discharge gate (16) have been seted up respectively in fixed bucket (8).
2. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: spout (5) have all been seted up to supporting platform (4) both sides, the equal sliding connection of spout (5) has gag lever post (6), the equal fixed connection of gag lever post (6) is on base (1), the equal fixedly connected with limiting plate (29) in supporting platform (4) bottom both sides, the equal sliding connection of limiting plate (29) is on base (1).
3. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: one side fixedly connected with support column (20) of driving motor (23) is kept away from in supporting platform (4), support column (20) fixedly connected with inlet pipe (18), feed inlet (17) is passed to inlet pipe (18) one end, inlet pipe (18) other end fixedly connected with link (19), link (19) fixed connection is on fixed bucket (8).
4. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: the material guide device is characterized in that a material guide platform (21) is arranged at the bottom of the fixed barrel (8), the bottom of the material guide platform (21) is fixedly connected with the supporting platform (4), and the cross section of the material guide platform (21) is of a triangular structure.
5. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: the milling ring (12) is provided with a plurality of milling wheels (13) and a plurality of storage tanks (15), and each milling ring (12) is connected with a plurality of milling wheels (13) in a rotating mode.
6. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: a protective shell (27) is arranged between the driving motor (23) and the crushing barrel (9), the protective shell (27) is sleeved on the driving wheel (24) and the driven wheel (25), a second connecting frame (28) is fixedly connected to the protective shell (27), and the second connecting frame (28) is fixedly connected to the second supporting frame (22).
7. The ball mill with the shock absorption function for the mineral processing engineering according to claim 1, characterized in that: chamfers are arranged on two sides of the inner ring of the material distribution table (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826575.9A CN113578463A (en) | 2021-07-21 | 2021-07-21 | Ball mill for mineral processing engineering with shock-absorbing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826575.9A CN113578463A (en) | 2021-07-21 | 2021-07-21 | Ball mill for mineral processing engineering with shock-absorbing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113578463A true CN113578463A (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110826575.9A Pending CN113578463A (en) | 2021-07-21 | 2021-07-21 | Ball mill for mineral processing engineering with shock-absorbing function |
Country Status (1)
| Country | Link |
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| CN (1) | CN113578463A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976259A (en) * | 2021-11-22 | 2022-01-28 | 山东省舜泰工程检测鉴定集团有限公司 | Vibrating soil grinder |
| CN114309626A (en) * | 2022-01-13 | 2022-04-12 | 中南大学 | Powder metallurgy uses high-efficient ball mill |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB587752A (en) * | 1945-01-15 | 1947-05-05 | John Somerville Highfield | Improvements relating to crushing or pulverizing apparatus |
| JPH07256131A (en) * | 1994-03-23 | 1995-10-09 | Fratelli Buzzi Spa | Bearing ring type roller pulverizer and abrasion board for said pulverizer |
| KR101863696B1 (en) * | 2018-01-26 | 2018-06-01 | 환경시설관리 주식회사 | Bioreactor Sludge Reduction System |
| CN207563009U (en) * | 2017-11-20 | 2018-07-03 | 江西华硕陶瓷集团有限公司 | A kind of entire body Rome stone raw material ball mill |
| CN108787054A (en) * | 2018-08-07 | 2018-11-13 | 李思模 | A kind of ball mill convenient for high-efficient grinding |
| CN208526817U (en) * | 2018-06-29 | 2019-02-22 | 遂宁市凤平合金耐磨材料有限公司 | A kind of twin-stage ball mill |
| CN212284256U (en) * | 2020-04-30 | 2021-01-05 | 湖北鑫荣矿业有限公司 | Ball mill for mineral processing engineering with shock-absorbing function |
| CN212663740U (en) * | 2020-03-13 | 2021-03-09 | 杭州勤俭电机材料有限公司 | Ball mill that performance of making an uproar is good falls |
-
2021
- 2021-07-21 CN CN202110826575.9A patent/CN113578463A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB587752A (en) * | 1945-01-15 | 1947-05-05 | John Somerville Highfield | Improvements relating to crushing or pulverizing apparatus |
| JPH07256131A (en) * | 1994-03-23 | 1995-10-09 | Fratelli Buzzi Spa | Bearing ring type roller pulverizer and abrasion board for said pulverizer |
| CN207563009U (en) * | 2017-11-20 | 2018-07-03 | 江西华硕陶瓷集团有限公司 | A kind of entire body Rome stone raw material ball mill |
| KR101863696B1 (en) * | 2018-01-26 | 2018-06-01 | 환경시설관리 주식회사 | Bioreactor Sludge Reduction System |
| CN208526817U (en) * | 2018-06-29 | 2019-02-22 | 遂宁市凤平合金耐磨材料有限公司 | A kind of twin-stage ball mill |
| CN108787054A (en) * | 2018-08-07 | 2018-11-13 | 李思模 | A kind of ball mill convenient for high-efficient grinding |
| CN212663740U (en) * | 2020-03-13 | 2021-03-09 | 杭州勤俭电机材料有限公司 | Ball mill that performance of making an uproar is good falls |
| CN212284256U (en) * | 2020-04-30 | 2021-01-05 | 湖北鑫荣矿业有限公司 | Ball mill for mineral processing engineering with shock-absorbing function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976259A (en) * | 2021-11-22 | 2022-01-28 | 山东省舜泰工程检测鉴定集团有限公司 | Vibrating soil grinder |
| CN114309626A (en) * | 2022-01-13 | 2022-04-12 | 中南大学 | Powder metallurgy uses high-efficient ball mill |
| CN114309626B (en) * | 2022-01-13 | 2023-02-07 | 中南大学 | Powder metallurgy uses high-efficient ball mill |
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Application publication date: 20211102 |