CN109622365A - A kind of vibration grinding separator and system - Google Patents
A kind of vibration grinding separator and system Download PDFInfo
- Publication number
- CN109622365A CN109622365A CN201910010526.0A CN201910010526A CN109622365A CN 109622365 A CN109622365 A CN 109622365A CN 201910010526 A CN201910010526 A CN 201910010526A CN 109622365 A CN109622365 A CN 109622365A
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- CN
- China
- Prior art keywords
- separator
- grinding
- separation
- flange
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 76
- 238000000926 separation method Methods 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000009527 percussion Methods 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims description 22
- 230000035939 shock Effects 0.000 claims description 16
- 238000013016 damping Methods 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000001238 wet grinding Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- 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
- B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
- B02C17/163—Stirring means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Abstract
The present invention is suitable for wet grinding technical field.The present invention discloses a kind of vibration grinding separator and system, and wherein vibration grinding separator includes separator and separator is made to generate the percussion mechanism of vibration.The vibration generated when use by the percussion mechanism by electricity or high pressure gas driving, and the rigidly connected separator for being transmitted to the vibration, separate the biggish grinding material and abrasive media and separator that are blocked in separator Separation when separation or are gathered in around separator, it avoids biggish grinding material and abrasive media from blocking separator Separation, influences the separative efficiency of grinding material.
Description
Technical field
The present invention relates to wet grinding technical field, in particular to a kind of vibration grinding separator and system.
Background technique
Existing wet ball grinding system requires to separate the material that mill ball and grinding are completed, and separator is adopted more
With separating net-screen structure, due to from when mill ball and the material completed of grinding can all assemble to separator direction, be easy separating
The separating opening of mesh screen forms blocking, influences feed separation efficiency.
There are mainly two types of the material completed at present to the mill ball in milling system with grinding separates, one is will divide
Off-network sieve is fixed between material outlet and grinding chamber, is stationary state when the separate mesh of the structure works, in separation process pole
It is easy to be formed on separating net-screen surface and assemble, block separating opening；Second is that turning separator high speed by acting on using centrifugal force
It is dynamic, thus can in separator surface, there will be no mill balls or biggish particle to get lodged on the separating net-screen on separator, shadow
Separation is rung, its structure is complicated, needs that separator is driven to rotate.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of vibration grinding separator and systems, and wherein the vibration is ground
Aggregation blocking separating opening can be formed to avoid on separating net-screen surface by grinding separator, improve separative efficiency and separating effect.
To solve the above-mentioned problems, the present invention provides a kind of vibration grinding separator.Separator packet is ground in the vibration
Separator is included, further includes the percussion mechanism for shaking separator.
It further says, the separator is net screen type separator.
It further says, the percussion mechanism includes pneumatic shock or electric vibrator device.
Further say, the separator and separator fixing seat, be equipped in the separator fixing seat on separator
The material hole of inner cavity connection is separated, which is connected to the Separation on separator, is additionally provided in separator fixing seat
Discharge port, the discharge port and material hole separate inner cavity and Separation and form grinding material split tunnel.
It further says, the separator fixing seat is equipped with damping.
It further says, the damping includes first flange and second flange, and setting is in first flange and the
Shock reducing structure between two flanges.
It further says, the shock reducing structure is elastic rubber.
The present invention also provides a kind of grinding system, which includes sand cylinder and grinding separator, the grinding point
Include separator from device, further includes the percussion mechanism for shaking separator.
It further says, the percussion mechanism includes pneumatic shock or electric vibrator device.
It further says, the separator is net screen type separator.
Further say, the separator and separator fixing seat, be equipped in the separator fixing seat on separator
The material hole of inner cavity connection is separated, which is connected to the Separation on separator, is additionally provided in separator fixing seat
Discharge port, the discharge port and material hole separate inner cavity and Separation and form grinding material split tunnel.
It further says, damping is equipped between the separator fixing seat and sand cylinder.
Further say, the damping include connect separator fixing seat first flange and connection sand cylinder the
Two flanges are equipped with shock reducing structure between first flange and second flange.
It further says, the shock reducing structure is elastic rubber.
It further says, further includes the disperser for grinding main wheel connection, which includes being uniformly distributed in grinding shaft table
The stick pin in face, the sand cylinder inner wall stick pins position install the square toothing of fluted formation.
The present invention provides a kind of vibration grinding separator and system, and wherein vibration grinding separator includes separation
Device further includes the percussion mechanism for making separator generate vibration.It is generated when use by the percussion mechanism by electricity or high pressure gas driving
Vibration, and the rigidly connected separator that the vibration is transmitted to makes to be blocked in separator Separation or aggregation when separation
Biggish grinding material and abrasive media and separator around separator separate, and avoid biggish grinding material and grinding medium
Matter blocks separator Separation, influences the separative efficiency of grinding material.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is of the invention
Some embodiments to those skilled in the art without creative efforts, can also be according to this
A little attached drawings obtain other accompanying drawings.
Fig. 1 is vibration grinding separator first embodiment along axial schematic cross-sectional view.
Fig. 2 is vibration grinding separator second embodiment along axial schematic cross-sectional view.
Fig. 3 is grinding system first embodiment along axial schematic cross-sectional view.
Fig. 4 is grinding system second embodiment along axial schematic cross-sectional view.
Below with reference to embodiment, and referring to attached drawing, the realization, the function and the advantages of the object of the present invention are made furtherly
It is bright.
Specific embodiment
In order to keep the purposes, technical schemes and advantages of invention clearer, below in conjunction with attached in the embodiment of the present invention
Figure, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of vibration grinding separator embodiment.
The percussion mechanism 2 that separator includes separator 1 and shakes separator 1 in process of lapping is ground in the vibration.
Specifically, the separator 1 be not the present invention improve main points, specific structure without limitation, as long as play by
Abrasive media and grinding material are separated, and can use existing separation ring or net screen type structure, for ease of description
The present embodiment is illustrated for separating ring.The separator 1 is superimposed by multiple separation rings, is separated to be equipped between ring on adjacent two and be divided
Gap (attached drawing does not indicate) is sowed discord, is superimposed inside the separator 1 formed by multiple separation ring rings and forms separation inner cavity 11, the separation
Gap is connected to upper two sides in separator 1, i.e. 1 outside of connection separation inner cavity 11 and separator.The separator 1 is fixed on separator
In fixing seat 4, the fixing seat 4 be equipped with the material hole 41 that separates the connection of inner cavity 11, the fixing seat 4 is equipped with and material hole 41 is logical
Even discharge port 3, the material mouth 3 with material hole 41, separate inner cavity 11 and Separation formation grinding material split tunnel.
The percussion mechanism 2 uses the prior art, such as so that it is generated vibration or electrically driven (operated) shake by high yield gas-powered
Dynamic device, can control shockproofness and frequency.The percussion mechanism 2 and fixing seat 4 are rigidly connected, can also be with 1 rigidity of separator
Connection.
In use, the vibration generated by percussion mechanism 2, rigidly conduction makes separator 1 while generating property to separator 1
Vibration, biggish grinding material and the abrasive media for making the Separation being blocked on separator 1 or being distributed in around separator 1
It is separated with separator 1, is avoided that biggish grinding material and abrasive media blocking separator Separation, it is smooth to improve discharging
Property.
It is transmitted on sand cylinder to reduce the vibration generated when the work of shake mechanism, as shown in Fig. 2, can be in the separation
Device fixing seat 4 is equipped with damping 5, which will be in vibration conduction to sand cylinder when can reduce work.It is described to subtract
The second flange 52 for shaking first flange 51 and connection sand cylinder that mechanism 5 includes connection separator fixing seat 41, in first flange
Shock reducing structure 50 is equipped between 51 and second flange 52.The shock reducing structure 50 can be resilient cushion or damping spring, which can be with
Using yielding rubber, it is also possible to elastic bellows etc..
As shown in figure 3, the grinding system includes sand cylinder 6 and grinding separation dress the present invention also provides a kind of grinding system
It sets, the grinding separator includes separator 1 and makes the percussion mechanism 2 shaken when separator work.
Specifically, the grinding system includes being equipped with 12 sand cylinder 6 of feed inlet, dispersion dress is equipped in the sand cylinder 6
It sets, which includes grinding shaft 7 and the disperser 8 that is arranged on grinding shaft 7, is equipped with grinding separator in discharging.Institute
Sand cylinder 6 is stated equipped with waterway 13 and the water inlet 10 and water outlet 9 that are connected to waterway 13.
Specifically, the separator 1 be not the present invention improve main points, specific structure without limitation, as long as play by
Abrasive media and grinding material are separated, and can use existing separation ring or net screen type structure, for ease of description
The present embodiment is illustrated for separating ring.The separator 1 is superimposed by multiple separation rings, is separated to be equipped between ring on adjacent two and be divided
Gap (attached drawing does not indicate) is sowed discord, is superimposed inside the separator 1 formed by multiple separation ring rings and forms separation inner cavity 11, the separation
Gap is connected to upper two sides in separator 1, i.e. 1 outside of connection separation inner cavity 11 and separator.The separator 1 is fixed on separator
In fixing seat 4, the fixing seat 4 be equipped with the material hole 41 that separates the connection of inner cavity 11, the fixing seat 4 is equipped with and material hole 41 is logical
Even discharge port 3, the material mouth 3 with material hole 41, separate inner cavity 11 and Separation formation grinding material split tunnel.
The percussion mechanism 2 uses the prior art, such as so that it is generated vibration or electrically driven (operated) shake by high yield gas-powered
Dynamic device, can control shockproofness and frequency.The percussion mechanism 2 and fixing seat 4 are rigidly connected, can also be with 1 rigidity of separator
Connection.
In use, the vibration generated by percussion mechanism 2, rigidly conduction makes separator 1 while generating property to separator 1
Vibration, biggish grinding material and the abrasive media for making the Separation being blocked on separator 1 or being distributed in around separator 1
It is separated with separator 1, is avoided that biggish grinding material and abrasive media blocking separator Separation, it is smooth to improve discharging
Property.
It is transmitted on sand cylinder to reduce the vibration generated when the work of shake mechanism, as shown in Fig. 2, can be in the separation
Device fixing seat 4 is equipped with damping 5, which will be in vibration conduction to sand cylinder when can reduce work.It is described to subtract
The second flange 52 for shaking first flange 51 and connection sand cylinder that mechanism 5 includes connection separator fixing seat 41, in first flange
Shock reducing structure 50 is equipped between 51 and second flange 52.The shock reducing structure 50 can be resilient cushion or damping spring, which can be with
Using yielding rubber, it is also possible to elastic bellows etc..
As shown in figure 4, the grinding system includes disperser 8 and fixed dispersion the present invention also provides another grinding system
The grinding shaft 7 of device 8, the disperser 8 use stick pin, which is uniformly distributed in 7 surface of grinding shaft, 7 one end face of grinding shaft
Cavity equipped with storage separator, the sand cylinder 6 are additionally provided with abrasive media dispensing port, other structures and above-described embodiment phase
Together.
In 6 inner surface of sand cylinder, i.e. 6 inner wall stick pins position of the sand cylinder square toothing 61 that installs fluted formation should
Square toothing 61 can increase grinding material feed inlet 12 and avoid to 3 movement routine of discharge port to increase grinding collision probability
Grinding material is moved to discharge port 3 from gap between 6 inner wall of stick latch structure and sand cylinder, increases by 3 side of discharge port and is relatively large in diameter
Grinding material is concentrated, and the difficulty of discharging is increased.As needed, closed clearance position is equipped between the grinding shaft 7 and disperser 8
71, it is possible to reduce 8 weight of disperser mitigates 7 burden of grinding shaft.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features, and these modification replacements,
The spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (14)
1. vibration grinding separator, including separator, it is characterised in that: further include the percussion mechanism for shaking separator.
2. separator is ground in vibration according to claim 1, which is characterized in that the percussion mechanism includes pneumatic shock
Or electric vibrator device.
3. separator is ground in vibration according to claim 1, which is characterized in that the separator is fixed with separator
Seat, is equipped with the material hole being connected to the separation inner cavity on separator in the separator fixing seat, the separation inner cavity on separator
Separation connection, be additionally provided with discharge port in separator fixing seat, the discharge port with expect hole, separate inner cavity and Separation shape
At grinding material split tunnel.
4. separator is ground in vibration according to claim 1, which is characterized in that the separator fixing seat, which is equipped with, to be subtracted
Shake mechanism.
5. separator is ground in vibration according to claim 4, which is characterized in that the damping includes first flange
And second flange, and the shock reducing structure being arranged between first flange and second flange.
6. separator is ground in vibration according to claim 5, which is characterized in that the shock reducing structure is elastic rubber.
7. a kind of grinding system, including sand cylinder and grinding separator, which includes separator, and feature exists
In, further include make separator shake percussion mechanism.
8. grinding system according to claim 7, which is characterized in that the percussion mechanism includes pneumatic shock or electronic shake
Dynamic device.
9. grinding system according to claim 7, which is characterized in that the separator and separator fixing seat, the separation
The material hole being connected to the separation inner cavity on separator is equipped in device fixing seat, the Separation on the separation inner cavity and separator connects
It is logical, it is additionally provided with discharge port in separator fixing seat, the discharge port and material hole separate inner cavity and Separation formation grinding material
Split tunnel.
10. grinding system according to claim 7, which is characterized in that set between the separator fixing seat and sand cylinder
There is damping.
11. grinding system according to claim 10, which is characterized in that the damping includes that connection separator is fixed
The first flange of seat and the second flange of connection sand cylinder, are equipped with shock reducing structure between first flange and second flange.
12. grinding system according to claim 11, which is characterized in that the shock reducing structure is elastic rubber.
13. grinding system according to claim 7, which is characterized in that further include the disperser for grinding main wheel connection, this point
Scattered device includes the stick pin for being uniformly distributed in grinding shaft surface, and the sand cylinder inner wall stick pins position installs the square tooth knot of fluted formation
Structure.
14. grinding system according to claim 13, which is characterized in that be equipped between the grinding shaft and disperser closed
Clearance position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018115836404 | 2018-12-24 | ||
| CN201811583640 | 2018-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622365A true CN109622365A (en) | 2019-04-16 |
Family
ID=66057918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910010526.0A Pending CN109622365A (en) | 2018-12-24 | 2019-01-07 | A kind of vibration grinding separator and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622365A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09193019A (en) * | 1996-01-19 | 1997-07-29 | Fuji Seisakusho:Kk | Foreign matter separating-classifying method and device in grinding/polishing/cleaning material |
| CN201419107Y (en) * | 2009-06-05 | 2010-03-10 | 陈波 | Grinding device |
| CN202162036U (en) * | 2011-05-31 | 2012-03-14 | 陈波 | Grinding and separating device |
| CN202823514U (en) * | 2012-08-21 | 2013-03-27 | 向小月 | Multiple circulation grinding system |
| JP5404955B1 (en) * | 2013-06-03 | 2014-02-05 | アシザワ・ファインテック株式会社 | Medium agitating crusher |
| CN103657802A (en) * | 2013-12-31 | 2014-03-26 | 占天义 | Agitating type grinding device |
| CN204074173U (en) * | 2013-12-31 | 2015-01-07 | 占天义 | Stirring-type lapping device |
| CN104888900A (en) * | 2015-06-10 | 2015-09-09 | 占天义 | Novel dispersion grinding device |
| CN209935198U (en) * | 2018-12-24 | 2020-01-14 | 深圳市科力纳米工程设备有限公司 | Vibration grinding and separating device and system |
-
2019
- 2019-01-07 CN CN201910010526.0A patent/CN109622365A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09193019A (en) * | 1996-01-19 | 1997-07-29 | Fuji Seisakusho:Kk | Foreign matter separating-classifying method and device in grinding/polishing/cleaning material |
| CN201419107Y (en) * | 2009-06-05 | 2010-03-10 | 陈波 | Grinding device |
| CN202162036U (en) * | 2011-05-31 | 2012-03-14 | 陈波 | Grinding and separating device |
| CN202823514U (en) * | 2012-08-21 | 2013-03-27 | 向小月 | Multiple circulation grinding system |
| JP5404955B1 (en) * | 2013-06-03 | 2014-02-05 | アシザワ・ファインテック株式会社 | Medium agitating crusher |
| CN103657802A (en) * | 2013-12-31 | 2014-03-26 | 占天义 | Agitating type grinding device |
| CN204074173U (en) * | 2013-12-31 | 2015-01-07 | 占天义 | Stirring-type lapping device |
| CN104888900A (en) * | 2015-06-10 | 2015-09-09 | 占天义 | Novel dispersion grinding device |
| CN209935198U (en) * | 2018-12-24 | 2020-01-14 | 深圳市科力纳米工程设备有限公司 | Vibration grinding and separating device and system |
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