CN106861871A - A kind of extruded layer breakdown mill formula ultrafine grinding device - Google Patents
A kind of extruded layer breakdown mill formula ultrafine grinding device Download PDFInfo
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- CN106861871A CN106861871A CN201710092333.5A CN201710092333A CN106861871A CN 106861871 A CN106861871 A CN 106861871A CN 201710092333 A CN201710092333 A CN 201710092333A CN 106861871 A CN106861871 A CN 106861871A
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- grinding
- cylinder
- extruded layer
- broken
- layer
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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
- B02C21/00—Disintegrating plant with or without drying of the 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
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
- B02C2/10—Crushing or disintegrating by gyratory or cone crushers concentrically moved; Bell crushers
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/12—Shape or construction of discs
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, discs
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of extruded layer breakdown mill formula ultrafine grinding device, the device includes frame, main shaft, main shaft is located on the center line of frame, the frame top is fixed with extruded layer crushing device, extruded layer crushing device is fixed on main shaft by key I, and extruded layer crushing device lower section is sequentially provided with lapping device and drawing mechanism；Extruded layer crushing device and lapping device are each attached on main shaft, are run simultaneously in the presence of external motor；Extruded layer crushing device includes the broken cylinder of extruded layer and the broken disk of layer, and the broken disk of layer is arranged on main shaft by key, and the alternate structure of groove, fin is provided with the broken disk card of layer and the broken outer cylinder body inwall of extruded layer；Lapping device is made up of three-level grinding mechanism, and grinding mechanism includes abrasive disk and grinding block.The present invention a large amount of materials larger to particle diameter difference can be crushed once successfully, and improving pulverizer needed the condition of screen cloth, improve crush efficiency and crushing effect, can improve the production efficiency of production superfine powder.
Description
Technical field
The present invention relates to a kind of extruded layer breakdown mill formula ultrafine grinding device, belong to powder crushing technology field.
Background technology
The demand of powder has been deep into the every field such as medical chemical machinery, especially to the making of superfine powder aspect
Through the key as decision industrial efficiency and people's livelihood quality, therefore requirement higher is proposed to powder breaker.Powder breaks
Crushing device is a lot, crushes powder using mechanism and still occupies very big component.Mechanical crushing device root common at present
It is divided into according to mechanical force mechanism：Extruding crushings, impact comminution, friction is crushed and splitting is crushed, single crumbling method needs compared with
Action time long could meet needs, virtually reduce operating efficiency.Therefore Combined type powder breaker has work
Efficiency high, flexible adjustable advantage.
The content of the invention
The present invention is intended to provide a kind of extruded layer breakdown mill formula ultrafine grinding device, low to meet current powder crushing efficiency
And the difficult deficiency of degree of grinding structure regulating；The broken of larger material is differed for particle diameter, by the broken mode of layer to big
Amount material produces crushing effect, and most material is ground to superfine powder at last, realizes disposable unified broken.
The invention provides a kind of extruded layer breakdown mill formula ultrafine grinding device, including frame, main shaft, main shaft is located at frame
Center line on, it is characterised in that：The frame top is fixed with extruded layer crushing device, and extruded layer crushing device is solid by key I
It is scheduled on main shaft, extruded layer crushing device lower section is sequentially provided with lapping device and drawing mechanism；Extruded layer crushing device and lapping device
It is each attached on main shaft, is run simultaneously in the presence of external motor；
The extruded layer crushing device includes charging aperture, and charging aperture lower section is the broken cylinder of extruded layer, and the broken cylinder of extruded layer passes through bolt
It is connected in frame, the broken cylinder body bottom of extruded layer is provided with the broken disk of layer, the broken disk of layer is hollow conical disks, and the broken disk of layer passes through key I
It is fixed on main shaft, the broken disk upper surface of layer is along the circumferential direction uniformly provided with some fins, shape between two neighboring fin
Into groove, groove also is provided with the broken cylinder inner surface of extruded layer, the structure that fin is alternately arranged, for coordinating in cylinder with the broken disk of layer
Triangular shape toroidal cavity is formed between portion and the broken disk of layer in vivo, extruded layer crushing device is connected with lapping device by frame；
Lapping device outside be grinding cylinder, grinding cylinder inside center be provided with three compositions to abrasive disk and grinding block, grinding
Disk end is provided with projection, and grinding block is located at abrasive disk top, and grinding cylinder middle part is vertically uniformly arranged three holes, is used for
Coordinate with the projection on abrasive disk, be connected through a screw thread outside the projection and cylinder on abrasive disk, ground by rotating threaded adjusting
Distance between mill and grinding block；
Grinding cylinder bottom connects drawing mechanism by flange；The drawing mechanism includes discharging cylinder, and discharging cylinder passes through method
Orchid is fixedly connected on grinding cylinder lower section, and discharging cylinder is cylinder-like structure, and its inner bottom is arranged to tiltedly with center to surrounding
Ramp shaped, discharging cylinder surrounding is respectively equipped with outlet, and material flows out by the slope of discharging cylinder body bottom；The master of discharging cylinder body bottom
Axle is provided with bearing, and bearing cap lower section is provided with key III.
In said apparatus, the grinding cylinder interior parallel is provided with three-level grinding mechanism, and the first abrasive disk and first are ground
Abrading block, the second abrasive disk and the second grinding block, the 3rd abrasive disk and the 3rd grinding block separately constitute one, two, three grinding mechanism,
First grinding block, the second grinding block and the 3rd grinding block are connected on main shaft by key II, the first abrasive disk, the second abrasive disk and
The structure of the 3rd abrasive disk is identical, and each abrasive disk is horn-like disc-shape, and center is provided with through hole, and disk two ends are provided with convex
Block, is provided with screw thread and is coordinated with the screw thread of grinding cylinder outer surface in the bottom of projection, the first grinding block, the second grinding block and
The structure of the 3rd grinding block is identical, and grinding block is disc-shaped structure, and disk both sides card is to centroclinal shape, grinding block center
Cylindrical boss structure is provided with for axially position, the centrally disposed axis hole of grinding block and keyway coordinate with the key II on main shaft；
The boss structure bottom of the 3rd grinding block is provided with sleeve, and the sleeve other end to withstand on be used on bearing inner race carries out axle to grinding block
To fixation.
In said apparatus, extruded layer crushing device is bolted on frame top, and connection lapping device in frame lower section grinds
Grinding cylinder is bolted and is fixed on frame lower section, and extruded layer crushing device and lapping device are linked together by main shaft, together
Shi Jinhang extruded layers are broken and grind process.
In said apparatus, the broken tray bottom taper card of layer is provided with groove, the structure that fin is alternately arranged, when main shaft drives layer
During broken disc spins, material with the broken disc spins of layer and with the broken cylinder of extruded layer on groove, fin structural collision crush, due to material
Different motion speed from the broken disk distance of layer is also different, and the phenomenons such as mutual extruding, collision, impact are produced between material, makes
Material is largely crushed.
In said apparatus, the projection bottom of abrasive disk is threaded, for being connected with threaded grinding cylinder, according to need
The distance between abrasive disk and grinding block are adjusted by rotation tabs in real time, material particles are ground.
In said apparatus, grinding cylinder is circular cylinder, and two halves circular cylinder body is symmetrically installed one cylindrical tube of composition
Body, is provided with three rectangle openings on cylinder, and external screw thread is set around grinding cylinder outer rectangular perforate, and external screw thread is used for
Connection abrasive disk, realizes adjusting the distance between abrasive disk and grinding block in process of lapping.
Beneficial effects of the present invention：
（1）The present invention implements to crush for the wider material of a large amount of particle diameter distributions using the broken mode of layer, improves crushing efficiency；
（2）The reducing mechanism that the present invention is provided can adjust the gap of grinding mechanism in actual production so that meet actual thing
Material particle diameter, improve production efficiency；
（3）During practical adjustments gap, Grinding structural unit can be by being arranged on abrasive disk for the reducing mechanism that the present invention is provided
Screw thread pair on projection bottom and grinding cylinder is rotated, and becomes rotary motion into axially movable, convenient regulation gap is improved
Production efficiency.
Brief description of the drawings
Fig. 1 is the profile of present invention collision abrading type ultrafine grinding device.
Fig. 2 is the structural representation of the broken cylinder of extruded layer.
Fig. 3 is the structural representation of the broken disk of layer.
Fig. 4 is the structural representation of grinding cylinder.
Fig. 5 is the structural representation of abrasive disk.
Fig. 6 is the structural representation of grinding block.
Fig. 7 is abrasive disk and grinding block cooperation schematic diagram.
In figure：1 is main shaft, 2 is bearing cap, 3 is discharging cylinder, 4 is flange, 5 is grinding cylinder, 6 is the 3rd abrasive disk,
7 is the second abrasive disk, 8 is the first abrasive disk, 9 is frame, 10 is the broken cylinder of extruded layer, 11 is bearing cap, 12 is the broken disk of layer, 13
For key I, 14 be the first grinding block, 15 be the second grinding block, 16 be the 3rd grinding block, 17 be key II, 18 be sleeve, 19 be axle
Hold, 20 is key III.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment 1：
A kind of extruded layer breakdown mill formula ultrafine grinding device, including frame 9, main shaft 1, main shaft 1 are located on the center line of frame 9,
The top of the frame 9 is fixed with extruded layer crushing device, and extruded layer crushing device is fixed on main shaft 1 by key I 13, and extruded layer is broken
Device lower section is sequentially provided with lapping device and drawing mechanism；Extruded layer crushing device and lapping device are each attached on main shaft 1, outside
Connect synchronous operation in the presence of motor；
The extruded layer crushing device includes charging aperture, and charging aperture lower section is the broken cylinder 10 of extruded layer, and the broken cylinder 10 of extruded layer passes through
It is bolted in frame 9, the broken bottom of cylinder 10 of extruded layer is provided with the broken disk 12 of layer, the broken disk 12 of layer is hollow conical disks, layer
Broken disk 12 is fixed on main shaft 1 by key I 13, and the broken upper surface of disk 12 of layer is along the circumferential direction uniformly provided with some fins,
Groove is formed between two neighboring fin, groove also is provided with the broken inner surface of cylinder 10 of extruded layer, the structure that fin is alternately arranged,
Coordinate the formation triangular shape toroidal cavity between inner barrel and the broken disk of layer, extruded layer crushing device and grinding for the broken disk 12 of layer
Device is connected by frame；
Lapping device outside be grinding cylinder 5, the inside center of grinding cylinder 5 be provided with three compositions to abrasive disk and grinding block, grind
Mill end is provided with projection, and grinding block is located at abrasive disk top, and grinding cylinder middle part is vertically uniformly arranged three holes, uses
Coordinate in the projection on abrasive disk, be connected through a screw thread outside the projection and cylinder on abrasive disk, by rotating threaded adjusting
Distance between abrasive disk and grinding block；
The bottom of grinding cylinder 5 connects drawing mechanism by flange 4；The drawing mechanism includes discharging cylinder 3, and discharging cylinder 3 leads to
Cross flange and be fixedly connected on the lower section of grinding cylinder 5, discharging cylinder 3 is cylinder-like structure, and its inner bottom is set with center to surrounding
Ramped shaped is set to, the discharging surrounding of cylinder 3 is respectively equipped with outlet, and material flows out by the slope of discharging cylinder 3 bottom；Discharging cylinder
The main shaft 2 of 3 bottoms is provided with bearing 19, and the lower section of bearing cap 2 is provided with key III 20.
In said apparatus, the grinding cylinder interior parallel is provided with three-level grinding mechanism, and the first abrasive disk 8 and first are ground
Abrading block 14, the second abrasive disk 7 and the second grinding block 15, the 3rd abrasive disk 6 and the 3rd grinding block 16 separately constitute one, two, three
Grinding mechanism, the first grinding block 14, the second grinding block 15 and the 3rd grinding block 16 are connected on main shaft 1 by key II 17, and first
Abrasive disk 8, the second abrasive disk 7 are identical with the structure of the 3rd abrasive disk 6, and each abrasive disk is horn-like disc-shape, and center sets
There is through hole, disk two ends are provided with projection, be provided with screw thread in the bottom of projection is coordinated with the screw thread of grinding cylinder outer surface, the
The structure of one grinding block, the second grinding block and the 3rd grinding block is identical, and grinding block is disc-shaped structure, disk both sides card be to
Centroclinal shape, grinding block center is provided with cylindrical boss structure for axially position, the centrally disposed axis hole of grinding block and keyway
Coordinate with the key II on main shaft；The boss structure bottom of the 3rd grinding block 16 is provided with sleeve 18, the other end of sleeve 18 withstands on
It is used to carry out axial restraint to grinding block on bearing inner race,
In said apparatus, extruded layer crushing device is bolted on frame top, frame lower section connection lapping device, sand cylinder
Body 5 is bolted and is fixed on frame lower section, and extruded layer crushing device and lapping device are linked together by main shaft, while entering
Row extruded layer is broken and grinds process.
In said apparatus, the broken structure that bottom pyramidal card is provided with groove, fin is alternately arranged of disk 12 of layer, when main shaft drives
Layer broken disc spins when, material with the broken disc spins of layer and with the broken cylinder of extruded layer on groove, fin structural collision crush, due to thing
Material is also different from the different motion speed of the broken disk distance of layer, and the phenomenons such as mutual extruding, collision, impact are produced between material,
Material is set largely to crush.
In said apparatus, the projection bottom of abrasive disk is threaded, for being connected with threaded grinding cylinder, according to need
The distance between abrasive disk and grinding block are adjusted by rotation tabs in real time, material particles are ground.
Grinding cylinder is circular cylinder in said apparatus, and two halves circular cylinder body is symmetrically installed one cylindrical tube of composition
Body, is provided with three rectangle openings on cylinder, and external screw thread is set around grinding cylinder outer rectangular perforate, and external screw thread is used for
Connection abrasive disk, realizes adjusting the distance between abrasive disk and grinding block in process of lapping.
Operation principle of the invention is as follows：
（1）After pouring into powder from funnel, material is largely fallen the sky that the broken cylinder of extruded layer is formed with the broken disk of layer by Action of Gravity Field
In chamber.
（2）Extruded layer crushing device is made up of the broken cylinder of extruded layer and the broken disk of layer, and the broken disk of layer is connected by material leakage pipe by key I
Connect and be fixed on main shaft, when material enters in extruded layer crushing device cavity, main shaft rotarily drives the broken disc spins of layer, and material is subject to layer
Broken disk is rotated, material under the cavity portion when it is broken by panel surface and the concavo-convex type groove extrusion and collision of cylinder inner surface, in sky
The material on chamber middle part and top forms that the material bed rotary speed of nearly disk is big when rotated and the material bed rotary speed of remote disk is small shows
As, form material bed relative motion, it is material bed between mutually extrude, collision, friction it is broken.Broken small particle material particles lead to
The gap crossed between material particles moves downward and gradually move to cavity bottom and crushed again, until grain diameter is less than cavity
Diameter at lower part outlet is fallen among lapping device.
（3）Lapping device is equipped with three groups of grinders being made up of abrasive disk and grinding block by grinding cylinder and inner barrel
Structure, grinding cylinder set two be the cylinder of similar shape half just to install, cylinder middle and lower part set three with shape perforate, be used to
Through the projection of grinding plate edge, and it is threaded in tapping；The angled different pitch on abrasive disk and grinding block,
With grinding carry out particle be sheared, attrition crushing into the smaller particle of particle diameter, ground as particle is fractured into more little particle
Mill apparatus gap is also smaller, until grain diameter is less than the gap between abrasive disk and grinding block, into next grinding mechanism,
The projection bottom for grinding plate edge is provided with screw thread corresponding with cylinder, between being used to finely tune between abrasive disk and grinding block
Gap, when abrasive disk passes through screw thread rotation, abrasive disk adjusts the gap and grinding block between axially movable, and material enters grinding
During mechanism, by adjusting the gap length between grinding block and abrasive disk, material particles are ground.
（4）The material being crushed afterwards in process of lapping naturally falls in drawing mechanism, the discharge barrel in drawing mechanism
Having coniform disk in body makes material self gravitation effect, pass through four outlet outflows.
The device course of work that the present invention is provided is as follows：The block or different granulate mixture material of particle diameter is entered by bell mouth
Material, in extruded layer crushing device cavity, material is rotated with solid accumulation during layer broken disc spins, because material is in cavity inside shape
Into material bed movement velocity difference material is extruded between layers, collide, rub broken, realize material by for the first time
It is broken, afterwards because material self gravitation is fallen into lapping device along extruded layer crushing device cavity bottom tapping, abrasive disk
Coordinate that side angle degree is different with the card of grinding block, material enters from larger gap, as the particle that carries out for grinding is sheared, squeezes
Crush and be broken into the smaller particle of particle diameter, flowed out from small―gap suture, as particle is fractured into more little particle lapping device gap
It is smaller, until grain diameter is less than the centrifugation that the gap between abrasive disk and grinding block, particle are produced by self gravitation and rotation
Power is fallen along and into next grinding mechanism from grinding block edge, and material is crushed for the second time；Material is crushed by second
Particle diameter is more unified afterwards, and now the appropriate second level grinding mechanism that reduces is the distance between the second abrasive disk and the second grinding block, is fallen
The material for getting off enters the gap of second level grinding mechanism, by diminishing cooperation on abrasive disk and grinding block, by grinding
Mill and the smaller particles of screening are fallen from grinding block edge, and material is crushed for the third time；It is appropriate again to reduce tertiary grinding
The gap of mechanism, by the 3rd abrasive disk regrinding, material is crushed by the 4th time, by the powder of grinding by discharging unit
Discharging opening is fitted into retracting device.
Claims (6)
1. a kind of extruded layer breakdown mill formula ultrafine grinding device, including frame, main shaft, main shaft are located on the center line of frame, its
It is characterised by：The frame top is fixed with extruded layer crushing device, and extruded layer crushing device is fixed on main shaft by key I, is squeezed
Laminate layer crushing device lower section is sequentially provided with lapping device and drawing mechanism；Extruded layer crushing device and lapping device are each attached to main shaft
On, run simultaneously in the presence of external motor；
The extruded layer crushing device includes charging aperture, and charging aperture lower section is the broken cylinder of extruded layer, and the broken cylinder of extruded layer passes through bolt
It is connected in frame, the broken cylinder body bottom of extruded layer is provided with the broken disk of layer, the broken disk of layer is hollow conical disks, and the broken disk of layer passes through key I
It is fixed on main shaft, the broken disk upper surface of layer is along the circumferential direction uniformly provided with some fins, shape between two neighboring fin
Into groove, groove also is provided with the broken cylinder inner surface of extruded layer, the structure that fin is alternately arranged, for coordinating in cylinder with the broken disk of layer
Triangular shape toroidal cavity is formed between portion and the broken disk of layer in vivo, extruded layer crushing device is connected with lapping device by frame；
Lapping device outside be grinding cylinder, grinding cylinder inside center be provided with three compositions to abrasive disk and grinding block, grinding
Disk end is provided with projection, and grinding block is located at abrasive disk top, and grinding cylinder middle part is vertically uniformly arranged three holes, is used for
Coordinate with the projection on abrasive disk, be connected through a screw thread outside the projection and cylinder on abrasive disk, ground by rotating threaded adjusting
Distance between mill and grinding block；
Grinding cylinder bottom connects drawing mechanism by flange；The drawing mechanism includes discharging cylinder, and discharging cylinder passes through method
Orchid is fixedly connected on grinding cylinder lower section, and discharging cylinder is cylinder-like structure, and its inner bottom is arranged to tiltedly with center to surrounding
Ramp shaped, discharging cylinder surrounding is respectively equipped with outlet, and material flows out by the slope of discharging cylinder body bottom；The master of discharging cylinder body bottom
Axle is provided with bearing, and bearing cap lower section is provided with key III.
2. extruded layer breakdown mill formula ultrafine grinding device according to claim 1, it is characterised in that：In the grinding cylinder
Portion is arranged with three-level grinding mechanism in parallel, and the first abrasive disk and the first grinding block, the second abrasive disk and the second grinding block, the 3rd grind
Mill and the 3rd grinding block separately constitute one, two, three grinding mechanism, the first grinding block, the second grinding block and the 3rd grinding block
It is connected on main shaft by key II, the structure of the first abrasive disk, the second abrasive disk and the 3rd abrasive disk is identical, each abrasive disk is
Horn-like disc-shape, center is provided with through hole, and disk two ends are provided with projection, is provided with outside screw thread and grinding cylinder in the bottom of projection
The screw thread on surface is coordinated, and the structure of the first grinding block, the second grinding block and the 3rd grinding block is identical, and grinding block is discoid
Structure, disk both sides card is that, to centroclinal shape, grinding block center is provided with cylindrical boss structure for axially position, grinding
The centrally disposed axis hole of block and keyway coordinate with the key II on main shaft；The boss structure bottom of the 3rd grinding block is provided with sleeve,
The sleeve other end to withstand on be used on bearing inner race carries out axial restraint to grinding block.
3. extruded layer breakdown mill formula ultrafine grinding device according to claim 1, it is characterised in that：The broken dress of extruded layer
Put and be bolted on frame top, frame lower section connection lapping device, grinding cylinder is bolted on frame lower section,
Extruded layer crushing device and lapping device are linked together by main shaft, while it is broken and grind process to carry out extruded layer.
4. extruded layer breakdown mill formula ultrafine grinding device according to claim 1, it is characterised in that：The broken tray bottom of layer
The structure that taper card is provided with groove, fin is alternately arranged.
5. extruded layer breakdown mill formula ultrafine grinding device according to claim 1, it is characterised in that：The abrasive disk it is convex
Block bottom is threaded, and is connected through a screw thread grinding cylinder, and the distance between abrasive disk and grinding block are adjusted by rotation tabs,
Material particles are ground.
6. extruded layer breakdown mill formula ultrafine grinding device according to claim 1, it is characterised in that：Grinding cylinder is semicircle
Shape cylinder, two halves circular cylinder body is symmetrically installed one cylindrical tube of composition, and three rectangle openings are provided with cylinder, is grinding
External screw thread is set around grinding cylinder outer rectangular perforate, abrasive disk is connected through a screw thread, by adjusting screw thread in process of lapping
To adjust the distance between abrasive disk and grinding block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092333.5A CN106861871B (en) | 2017-02-21 | 2017-02-21 | A kind of extruded layer breakdown mill formula ultrafine grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710092333.5A CN106861871B (en) | 2017-02-21 | 2017-02-21 | A kind of extruded layer breakdown mill formula ultrafine grinding device |
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| Publication Number | Publication Date |
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| CN106861871A true CN106861871A (en) | 2017-06-20 |
| CN106861871B CN106861871B (en) | 2018-12-28 |
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| CN201710092333.5A Expired - Fee Related CN106861871B (en) | 2017-02-21 | 2017-02-21 | A kind of extruded layer breakdown mill formula ultrafine grinding device |
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