CN109772525B - Be suitable for magnetic force ball mill of low viscosity material - Google Patents
Be suitable for magnetic force ball mill of low viscosity material Download PDFInfo
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- CN109772525B CN109772525B CN201910192016.XA CN201910192016A CN109772525B CN 109772525 B CN109772525 B CN 109772525B CN 201910192016 A CN201910192016 A CN 201910192016A CN 109772525 B CN109772525 B CN 109772525B
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- rotary drum
- drum
- grinding
- inner rotary
- ball mill
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 238000000227 grinding Methods 0.000 claims abstract description 86
- 238000003756 stirring Methods 0.000 claims abstract description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 230000005389 magnetism Effects 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000001681 protective effect Effects 0.000 abstract description 17
- 238000005452 bending Methods 0.000 abstract description 3
- 230000004907 flux Effects 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 206010024796 Logorrhoea Diseases 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The invention provides a magnetic ball mill suitable for low-viscosity materials, and belongs to the technical field of buildings. The ball mill comprises an inner rotary drum, an outer protective drum and a machine base, wherein the machine base is fixedly connected with the outer protective drum, the inner rotary drum is rotationally connected in the outer protective drum, a plurality of magnetic flux units are uniformly arranged on the outer protective drum in the circumferential direction, each magnetic flux unit comprises a permanent magnetic strip fixed on the inner wall of the outer protective drum, a plurality of stirring convex blocks extending towards the axis direction of the inner rotary drum are uniformly arranged on the inner wall of the inner rotary drum, the stirring convex blocks are formed by bending a reticular baffle plate, an accommodating cavity is formed in each stirring convex block, and a plurality of grinding balls made of magnetic flux materials are arranged in each accommodating cavity; the inner drum is driven by a drive motor. The invention has the advantages of enabling the grinding ball to move more frequently, improving the grinding efficiency and the like.
Description
Technical Field
The invention belongs to the technical field of building construction equipment, and relates to a magnetic ball mill suitable for low-viscosity materials.
Background
Ball milling is widely applied to the fields of buildings, chemical industry, medicines and the like, the ball mill generally comprises an inner rotary drum and an outer protective drum, when the inner rotary drum of the ball mill rotates, a grinding medium is attached to a lining plate of the inner rotary drum and taken away by a drum body under the action of inertia and centrifugal force and the action of friction force, and when the ball mill is taken to a certain height, the ball mill is thrown down under the action of gravity, and fallen grinding bodies break up materials in the drum body like projectiles.
The existing ball mill has the following problems:
And (3) a step of: the ball throwing path is single, and the breaking range is small. Taking spherical grinding media with the same particle size as an example, under the condition that the rotating speed of the inner rotary drum is fixed, the grinding media are rotated to a certain height along with the inner rotary drum, the positions of the grinding media separated from the inner rotary drum are single, the throwing paths are almost the same, even if the grinding media with different particle sizes are mixed, the throwing positions are changed due to the fact that the self weights and the inertia forces of the grinding media with different particle sizes are different, the positions of the grinding media leaving the inner rotary drum are always positioned on one side of a half inner rotary drum between the lowest point of the inner rotary drum and the highest point of the inner rotary drum, the radian of a ball throwing area is generally smaller than 0.5 pi, and the ball throwing position and the ball throwing path are always positioned on the right side of the inner rotary drum as an example of clockwise rotation, even if the grinding media are thrown out in a parabolic path due to the action of the inertia force, the grinding media can not be thrown out to the other side of the inner rotary drum due to the existence of materials to be ground.
The ball throwing position is single, and the small crushing range inevitably leads to low ball milling efficiency, and under the condition that the inner wall of the inner rotary drum is relatively flat, the circulation efficiency of materials in the inner rotary drum is low, the grinding is uneven, and the grinding is insufficient.
And II: the abrasion and impact of the grinding medium on the inner wall of the inner rotary drum are serious, the abrasion of the grinding medium is serious, and the pollution of materials is serious. The grinding media are thrown out and then collide with the inner wall of the inner rotary drum, all the grinding media collide with each other, the existing grinding media are generally made of iron, stone or ceramic materials, more scraps are generated in the collision process, materials to be ground are polluted, and the inner rotary drum is seriously worn.
Thirdly,: filtering out the material is troublesome and the material waste is serious. After the material is ground, grinding media are required to be filtered out, the materials carried by the grinding media cannot be removed in a short time, waste is caused to the materials, and the materials are required to be filtered out for many times, so that the operation is inconvenient, and the overall efficiency is low.
Fourth, the method comprises the following steps: in the ball milling and dispersing process of fluid materials with low viscosity and the like, the stirring intensity of the materials is low, so that the materials are dispersed and ground unevenly.
Disclosure of Invention
The invention aims to solve the problems of the prior art and provide a magnetic ball mill suitable for low-viscosity materials, and the technical problem to be solved by the invention is how to partition grinding balls so as to efficiently stir and uniformly disperse the materials.
The aim of the invention can be achieved by the following technical scheme: the magnetic ball mill is characterized by comprising an inner rotary drum, an outer protective drum and a machine base, wherein the machine base is fixedly connected with the outer protective drum, the inner rotary drum is rotationally connected in the outer protective drum, a plurality of magnetic passing units are uniformly arranged on the outer protective drum in the circumferential direction, each magnetic passing unit comprises a permanent magnetic strip fixed on the inner wall of the outer protective drum, a plurality of stirring convex blocks extending towards the axis direction of the inner rotary drum are uniformly arranged on the inner wall of the inner rotary drum, the stirring convex blocks are formed by bending a reticular baffle plate, a containing cavity is formed in each stirring convex block, and a plurality of grinding balls made of magnetic passing materials are arranged in each containing cavity; the inner rotary drum is driven by a driving motor.
In the rotation process of the inner rotary drum, the grinding balls are subjected to the adsorption force of the permanent magnet strips, part of the grinding balls can overcome the centrifugal force, the inertia force and the dead weight of the grinding balls due to the large magnetic force at two sides between the lowest point and the highest point of the inner rotary drum, so that the grinding balls are adhered to the inner wall of the inner rotary drum, most of the grinding balls roll in the accommodating cavity due to the centrifugal force, the dead weight and the like which are far away from the permanent magnet strips or are subjected to the permanent magnet strips, the permanent magnet strips are distributed at intervals, the grinding balls roll continuously in the accommodating cavity along with the rotation of the inner rotary drum, the rolling paths and the intensity of the grinding balls are inconsistent at different positions of the inner rotary drum, for example, when the grinding balls are close to the permanent magnet strips, the grinding balls tend to be close to the inner wall of the inner rotary drum quickly, and move according to the corresponding centrifugal force, the inertia force and the dead weight which are applied to the positions of the grinding balls when the grinding balls are far away from the permanent magnet strips, under the condition that the same number of the grinding balls, the scheme can improve the movement efficiency and the movement frequency of the grinding balls, and the traditional grinding balls only carried to the ball grinding balls are in the idle state or low-efficiency state of the grinding balls, and the grinding balls are only carried to the grinding balls
The stirring effect of stirring lug to the material is stronger, and the grinding ball is located the position different moreover, and is also different to the shielding condition of netted baffle, changes along with the stirring resistance to the material to make grinding ball atress, motion trend and to the impact strength of material all different, the cooperation grinding ball's high-efficient roll, can play better stirring and the effect of beating the garrulous material, improved efficiency greatly.
In the magnetic ball mill suitable for low-viscosity materials, the outline of the stirring lug is in a fan shape, and the height of the stirring lug extending towards the axis direction of the inner rotary drum is more than two thirds of the radius of the inner rotary drum.
The netted baffle is the V type, and the one end of axis direction is fixed on the detachable end cover of inner rotary drum, and the other end of axis direction supports and leans on the bottom wall of inner rotary drum, and two rectangular limits are close to inner rotary drum global inner wall, easy dismounting, and get rid of the end cover of inner rotary drum and can accomplish taking out, changing and the washing to the grinding ball, need not to filter out the step after the material grinds and accomplish, directly take out stirring lug can.
The stirring lug is fan-shaped and extends out of a position close to the axis of the inner rotary drum, so that the grinding range is increased.
In the magnetic ball mill suitable for low-viscosity materials, the grinding balls comprise a hollow spherical outer shell and an iron ball body positioned in the inner shell, and a rubber layer is filled between the iron ball body and the outer shell.
The shell can be iron or other wear-resisting materials, wraps up the rubber layer earlier in the grinding ball preparation process, then welds the shell, and the effect of shell is better to the material impact and hit garrulous effect, and the rubber layer has fine buffering effect, and the iron ball can be adsorbed by the permanent magnetism strip, under the condition that does not influence the grinding effect, can effectively protect the inner wall of the inner cylinder, improves the durable degree of grinding ball simultaneously, avoids the equipment operation in-process sweeps more and the pollution material.
In the magnetic ball mill suitable for low-viscosity materials, the inner wall of the inner rotating cylinder is provided with the wear-resistant lining positioned in the accommodating cavity.
The pad is seriously worn, and the structure has the advantages of small pad area and low replacement cost after being worn.
In the magnetic ball mill suitable for low-viscosity materials, the inner cylinder is connected with the outer casing through a bearing.
In the magnetic ball mill suitable for low-viscosity materials, the inner rotary drum is provided with a driven gear ring, and a transmission gear ring meshed with the driven gear ring is fixedly arranged on an output shaft of the driving motor.
Drawings
Fig. 1 is a sectional view of the ball mill.
Fig. 2 is a cross-sectional view of a grinding ball.
In the figure, 11, an inner rotary drum; 12. an outer casing; 13. a base; 2. a permanent magnet strip; 3. grinding balls; 31. a housing; 32. iron ball; 33. a rubber layer; 41. a driving motor; 42. a passive gear ring; 43. a transmission gear ring; 5. stirring the protruding blocks; 51. the accommodating cavity.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the ball mill comprises an inner rotary drum 11, an outer protective drum 12 and a machine base 13, wherein the machine base 13 is fixedly connected with the outer protective drum 12, the inner rotary drum 11 is rotationally connected in the outer protective drum 12, a plurality of magnetic passing units are uniformly arranged on the outer protective drum 12 in the circumferential direction, each magnetic passing unit comprises a permanent magnetic strip 2 fixed on the inner wall of the outer protective drum 12, a plurality of stirring protruding blocks 5 extending towards the axial direction of the inner rotary drum 11 are uniformly arranged on the inner wall of the inner rotary drum 11, the stirring protruding blocks 5 are formed by bending a net-shaped partition plate, a containing cavity 51 is formed in the stirring protruding blocks 5, and a plurality of grinding balls 3 made of magnetic passing materials are uniformly arranged in each containing cavity 51; the inner drum 11 is driven by a drive motor 41.
During the rotation of the inner drum 11, the grinding balls 3 are subjected to the adsorption force of the permanent magnet strips 2, part of the grinding balls 3 can overcome the centrifugal force, the inertia force and the dead weight of the grinding balls 3 by larger magnetic force at two sides between the lowest point and the highest point of the inner drum 11, so that the grinding balls 3 are adhered to the inner wall of the inner drum 11, most of the grinding balls 3 roll in the accommodating cavity 51 due to the centrifugal force, the dead weight and the like which are far away from the permanent magnet strips 2, as the permanent magnet strips 2 are distributed at intervals, the grinding balls 3 roll continuously in the accommodating cavity 51 along with the rotation of the inner drum 11, and the rolling paths and the strength of the grinding balls 3 are inconsistent at different positions of the inner drum 11, for example, when the grinding balls 3 are close to the permanent magnet strips 2, the grinding balls 3 tend to be close to the inner drum 11 rapidly, and move according to the corresponding centrifugal force, the inertia force and the dead weight which are applied to the positions of the grinding balls 3, under the condition that the same number of the grinding balls 3, the scheme can improve the movement efficiency and the movement frequency of the grinding balls 3, and the traditional ball mill can only impact the grinding balls 3 to the point of the grinding balls 3 to be in the idle state or the grinding balls 3, and the grinding balls 3 are in the idle state only when the grinding balls 3 are in the idle state, or the grinding balls are in the idle state, if the grinding balls are in the grinding balls 3, and the grinding balls are low
The stirring effect of the stirring lug 5 on the materials is stronger, the positions of the grinding balls 3 are different, the shielding condition of the net-shaped partition plates is different, and the stirring resistance to the materials is changed accordingly, so that the stress, the movement trend and the impact strength to the materials of the grinding balls 3 are different, and the grinding balls 3 are matched for efficient rolling, so that better stirring and crushing effects on the materials can be achieved, and the efficiency is greatly improved.
The outer contour of the stirring lug 5 is fan-shaped, and the height of the stirring lug 5 extending towards the axial direction of the inner rotary drum 11 is more than two thirds of the radius of the inner rotary drum 11. The netted baffle is the V type, and the one end of axis direction is fixed on the detachable end cover of inner rotary drum 11, and the other end of axis direction is supported and is leaned on the bottom wall of inner rotary drum 11, and two rectangular limits are close to inner rotary drum 11 global inner wall, easy dismounting, and get rid of the end cover of inner rotary drum 11 and can accomplish taking out, changing and the washing to grinding ball 3, need not to filter out the step after the material grinds and accomplish, directly take out stirring lug 5 can.
The stirring lug 5 is fan-shaped and extends out to a position close to the axis of the inner rotary drum 11, so that the grinding range is increased.
As shown in fig. 2, the grinding ball 3 includes a hollow spherical outer shell 31 and a ferrous sphere 32 located within the inner shell, and a rubber layer 33 is filled between the ferrous sphere 32 and the outer shell 31. The shell 31 can be iron or other wear-resistant materials, the rubber layer 33 is wrapped up in earlier in the grinding ball 3 preparation process, then the welding shell 31, the effect of shell 31 is to the material has better impact and the effect of beating garrulous, the rubber layer 33 has fine cushioning effect, the iron spheroid 32 can be adsorbed by permanent magnetism strip 2, under the condition that does not influence the grinding effect, can effectively protect the inner wall of inner cylinder 11, improve the durable degree of grinding ball 3 simultaneously, avoid equipment operation in-process sweeps more and pollute the material.
The inner wall of the inner drum 11 has wear-resistant lining in the receiving chamber 51. The pad is seriously worn, and the structure has the advantages of small pad area and low replacement cost after being worn.
The inner rotary drum 11 is connected with the outer protective drum 12 through a bearing. The inner drum 11 is provided with a driven gear ring 42, and a transmission gear ring 43 meshed with the driven gear ring 42 is fixedly arranged on an output shaft of the driving motor 41.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides a be suitable for magnetic force ball mill of low viscosity material, its characterized in that, this ball mill includes interior rotary drum (11), outer barrel casing (12) and frame (13), frame (13) are fixed to link to each other with outer barrel casing (12), interior rotary drum (11) rotate and connect in outer barrel casing (12), evenly be provided with a plurality of logical magnetic unit on outer barrel casing (12) circumference, every logical magnetic unit includes a permanent magnetism strip (2) of fixing on the inner wall of outer barrel casing (12), interior rotary drum (11) inner wall evenly is provided with a plurality of stirring lug (5) that stretch out to interior rotary drum (11) axis direction, stirring lug (5) are buckled and are formed by a netted baffle, have a holding chamber (51) in stirring lug (5), a plurality of grinding balls (3) that are made by logical magnetic material are all put in each holding chamber (51); the inner rotary drum (11) is driven by a driving motor (41);
The outer contour of the stirring lug (5) is fan-shaped, and the height of the stirring lug (5) extending towards the axis direction of the inner rotary drum (11) is more than two thirds of the radius of the inner rotary drum (11);
The grinding ball (3) comprises a hollow spherical outer shell (31) and an iron ball body (32) positioned in the inner shell, and a rubber layer (33) is filled between the iron ball body (32) and the outer shell (31);
the inner wall of the inner rotary cylinder (11) is provided with a wear-resistant lining which is positioned in the accommodating cavity (51).
2. A magnetic ball mill for low viscosity materials according to claim 1, characterized in that the inner drum (11) and the outer cage (12) are connected by bearings.
3. A magnetic ball mill for low viscosity materials according to claim 1 or 2, characterized in that the inner drum (11) has a driven gear ring (42), and the output shaft of the driving motor (41) is fixedly provided with a driving gear ring (43) engaged with the driven gear ring (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192016.XA CN109772525B (en) | 2019-03-14 | 2019-03-14 | Be suitable for magnetic force ball mill of low viscosity material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910192016.XA CN109772525B (en) | 2019-03-14 | 2019-03-14 | Be suitable for magnetic force ball mill of low viscosity material |
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| Publication Number | Publication Date |
|---|---|
| CN109772525A CN109772525A (en) | 2019-05-21 |
| CN109772525B true CN109772525B (en) | 2024-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910192016.XA Active CN109772525B (en) | 2019-03-14 | 2019-03-14 | Be suitable for magnetic force ball mill of low viscosity material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204816707U (en) * | 2015-07-22 | 2015-12-02 | 青岛世纳机械设备有限公司 | Hard material grinds special ball mill |
| CN106735260A (en) * | 2016-12-29 | 2017-05-31 | 广西梧州港德硬质合金制造有限公司 | A kind of efficient hard alloy agitating ball mill |
| CN206240561U (en) * | 2016-11-04 | 2017-06-13 | 江西省汉氏贵金属有限公司 | The ball mill of material is extracted for grinding noble metal |
| RU173066U1 (en) * | 2017-01-30 | 2017-08-08 | Евгений Федорович Чижик | BALL MILL AND HALF-MILLING MILLS |
| CN209680245U (en) * | 2019-03-14 | 2019-11-26 | 湖北科技学院 | A Magnetic Ball Mill Suitable for Low Viscosity Materials |
-
2019
- 2019-03-14 CN CN201910192016.XA patent/CN109772525B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204816707U (en) * | 2015-07-22 | 2015-12-02 | 青岛世纳机械设备有限公司 | Hard material grinds special ball mill |
| CN206240561U (en) * | 2016-11-04 | 2017-06-13 | 江西省汉氏贵金属有限公司 | The ball mill of material is extracted for grinding noble metal |
| CN106735260A (en) * | 2016-12-29 | 2017-05-31 | 广西梧州港德硬质合金制造有限公司 | A kind of efficient hard alloy agitating ball mill |
| RU173066U1 (en) * | 2017-01-30 | 2017-08-08 | Евгений Федорович Чижик | BALL MILL AND HALF-MILLING MILLS |
| CN209680245U (en) * | 2019-03-14 | 2019-11-26 | 湖北科技学院 | A Magnetic Ball Mill Suitable for Low Viscosity Materials |
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| Publication number | Publication date |
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| CN109772525A (en) | 2019-05-21 |
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