CN107225026A - A kind of new level Four ultra micro wet process disintegrator - Google Patents
A kind of new level Four ultra micro wet process disintegrator Download PDFInfo
- Publication number
- CN107225026A CN107225026A CN201610180523.8A CN201610180523A CN107225026A CN 107225026 A CN107225026 A CN 107225026A CN 201610180523 A CN201610180523 A CN 201610180523A CN 107225026 A CN107225026 A CN 107225026A
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- Prior art keywords
- pump housing
- level
- screen cloth
- bearing block
- outside
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- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 37
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 2
- 230000008450 motivation Effects 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002245 particle Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
-
- 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
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
A kind of new level Four ultra micro wet process disintegrator, including base, bearing block, the pump housing are crushed the pump housing by level Four and are formed by connecting, per level work chamber using the combination of inside and outside two layers of customization metallic sieve and blade.Pump housing top is bound by end cap, and charging aperture is provided with end cap, and discharging opening is located at pump housing bottom.The pump housing is arranged on bearing block by flange, and main shaft fixes four row's impellers and blade in the axial direction, is coordinated respectively with inside and outside screen cloth.Between each adjacent crushing chamber, using embedded positioning supporting frame structure, inside and outside two layers of customization metallic sieve is fixed on support frame as described above, is fully sealed inside and outside every grade between screen cloth.The wet method pump housing erects assembling successively, is fixed on base.By one-level coarse crushing, two grades finely divided, three-level ultra-fine grinding, and level Four ultramicro grinding is incorporated into an equipment, while product fineness quality is ensured, it is not necessary to carry out multiple precomminution, greatly improve production efficiency, reduce production cost.
Description
Technical field
Patent of the present invention is related to a kind of pulverizer, more particularly to a kind of new level Four ultra micro wet process disintegrator.
Background technology
Wet pulverizing passes through rotor and stator for the advantage that water content is high, slurry with mobility crushing has protrusion
Between powerful shear action under, crushing effect is notable.Existing wet process disintegrator is relative by single stage rotor and single stage stator
Rotation is crushed.This pulverizer can only carry out processing with setting the material that discharging particle diameter is more or less the same, by big particle diameter material
It is crushed to superfine, it is necessary to carry out precomminution step by step from big to small, next step ultra-fine grinding could be carried out after crushing certain fineness.Such as
The big particle diameter material of fruit directly carries out extremely fine crushing, can cause too high heating, equipment deformation, rotor gap obstruction and electricity
Machine burning such as ruins at the accident.And common multi-stage crushing device is the complete equipment drivetrain according to connecting by several different pulverizers
System is complicated, and power consumption is larger, less efficient especially when by the crushing material of several mm granules to hundreds of mesh.
The content of the invention
It is the further efficiency for improving and crushing for the above mentioned problem of wet process disintegrator, simplifies finely pulverized flow, reduction work(
Consumption, patent of the present invention provides a kind of new level Four ultra micro wet process disintegrator.A kind of new level Four ultra micro wet process disintegrator,
It is characterized in that introduce the concept crushed step by step, in original single coarse crushing, it is finely divided on the basis of, using level Four formula step by step
Crushing theory：One-level coarse crushing, two grades finely divided, three-level ultra-fine grinding, and level Four ultramicro grinding point level Four is crushed step by step；Level Four
Crush and use Seal Design, per level work chamber using the combination of inside and outside two layers of customization metallic sieve and blade；Each adjacent crushing chamber
Between, using embedded positioning supporting frame structure, inside and outside two layers of customization metallic sieve is fixed on support frame as described above, wherein inside and outside every grade
It is fully sealed between screen cloth；Working chamber is arranged above and below combination between the level Four pump housing, once feeds, material reaches after one-level coarse crushing
To 100 mesh, two grades it is finely divided after reach 250 mesh, reach 500 after 350 mesh, level Four ultramicro grinding are reached after three-level ultra-fine grinding
Mesh, it is to avoid final finely pulverized preceding multiple precomminution.
The solution that patent of the present invention is used is as follows：
Assembling main shaft is erect on a kind of new level Four ultra micro wet process disintegrator, including base, bearing block, bearing block, by electronic
Machine drives；The pump housing is crushed to combine above and below the pump housing and is linked and packed by four sections, passes through bolt series connection tightening, convenient dismounting；Level Four is crushed
The space that main shaft is passed through is left in the middle of the pump housing, bottom is provided with discharging opening；The pump housing is arranged on bearing block by flange, the pump housing and axle
Certain space is left between bearing, equipped with water-cooling apparatus, the cooling for main shaft and the pump housing；Main shaft fixes four rows in the axial direction
Impeller and blade, per level work chamber using the combination of inside and outside two layers of customization metallic sieve and blade, the four rows impeller and blade point
Do not coordinate with screen cloth inside and outside level Four and crushed.
Use on embedded positioning supporting frame structure design, support and erect as a modification of the present invention, between every layer of pump housing and the pump housing
Vertical to fix two layers of screen cloth, outer screen cloth is engaged with blade, and interior screen cloth is engaged with impeller, is fully sealed between inside and outside screen cloth, sieve
Net is sequentially reduced to outer layer aperture from top to bottom and by internal layer；Embedded positioning supporting frame structure both ensure that customization metallic sieve peace
The problem of intensity and inner screen hardly possible positioning is filled, the runner that higher level's material is circulated to subordinate's crushing chamber is provided again.
As a modification of the present invention, crush the distance between the pump housing and main shaft and adjusted by adjusting packing ring, prevent letting out for material
Leak into and crush pump chamber into next stage, it is ensured that the steady running of main shaft.
As a modification of the present invention, crushing inside and outside screen cloth in the pump housing, from top to bottom, the space of screen cloth is sequentially reduced；Original
Grain 3-5mm material, reaches 100 mesh after one-level coarse crushing, the Particle size requirements of second level crushing is met, by one or two grades
Support frame between the pump housing, reaches the second level and crushes the pump housing；Two grades it is finely divided after reach 250 mesh, reach 350 after three-level ultra-fine grinding
500 mesh are reached after mesh, level Four ultramicro grinding.
As a modification of the present invention, it is connected at the top of the pump housing by bolt with end cap, upward charging aperture is provided with the middle of end cap,
Discharging opening is opened in the bottom of the pump housing.Crush the pump housing and erect series connection tightening successively, facilitate material to pass through the pump housing.
As a modification of the present invention, crush the pump housing and be fixed on motor on the base with ground tightening, it is ensured that equipment is transported
The stability turned.
Beneficial effects of the present invention：The concept that the introducing of innovation is crushed step by step, in original single coarse crushing, finely divided basis
On, using level Four, formula crushes theory step by step, and by one-level coarse crushing, two grades are finely divided, three-level ultra-fine grinding, level Four ultramicro grinding
It is incorporated into an equipment, simplifies production procedure；Level Four, which is crushed, uses Seal Design, per level work chamber using inside and outside two layers
Customize the combination of metallic sieve and blade, the working chamber of level Four macerator pump is arranged above and below combination.It is complete between screen cloth inside and outside wherein every grade
Hermetically sealed structure design, has evaded the material short circuit phenomenon between ectonexine working chamber, it is ensured that it is thin that every grade of screen cloth blade is crushed
Degree is required；Innovation uses embedded positioning supporting frame structure design, and up-down structure is compact reasonable without losing, and both ensure that customization gold
Belong to the problem of screen cloth installation strength and inner screen hardly possible positioning, the runner that higher level's material is circulated to subordinate's crushing chamber provided again,
Prevent feed back short circuit；Particle 3-5mm material, reaches 100 mesh after one-level coarse crushing, two grades it is finely divided after reach
250 mesh, 500 mesh are reached after 350 mesh, level Four ultramicro grinding are reached after three-level ultra-fine grinding.Ensureing product fineness quality
Simultaneously, it is not necessary to carry out multiple precomminution, greatly improve production efficiency, reduce production cost.
Brief description of the drawings
Fig. 1 is patent structure schematic diagram of the present invention.
In figure：1st, charging aperture, 2, stator, 3 impellers one, 4, end cap, 5, blade one, 6, interior screen cloth one, 7, support frame
One, 8, packing ring one, 9, the pump housing one, 10, impeller two, 11, interior screen cloth two, 12, inner support frame two, 13, outer screen cloth two,
14 outer support frames two, 15, the pump housing two, 16, discharging opening, 17, oil seal seat, 18, main shaft, 19, bearing block, 20, motor
Case, 21, motor, 22, base 23, foundation bolt
Embodiment
As shown in figure 1, being bolted bearing block 19 and motor 21 on base 22.The pump housing is crushed by the bearing block fixed
19th, oil seal seat 17, main shaft 18, four the crushing pump housings, end caps 4 are constituted, and four pump housings are connected by bolt and fixed.Macerator pump
Constituted in body 1 comprising impeller 1, support frame 1, interior screen cloth 1, blade 1, outer screen cloth one.Impeller 1 and knife
The concentrically circle distribution of piece 1, impeller 1 is crushed with interior screen cloth 1, and blade 1 is crushed with outer screen cloth one；Institute
The aperture for stating the outer screen cloth one of aperture ratio for crushing the interior screen cloth 1 in the pump housing one is slightly larger, and material is by impeller 1 and interior screen cloth one
6 it is broken after, can directly carry out the broken of blade 1 and outer screen cloth one.
As shown in figure 1, the inside and outside fixation for customizing metallic sieve in per one-level macerator pump body, using embedded positioning supporting frame structure
Design.Interior screen cloth 2 11 is fixed on support frame 2 12.It is fully sealed, evades between interior screen cloth 2 11 and outer screen cloth 2 13
Material short circuit phenomenon between ectonexine working chamber, it is ensured that the fineness requirement that every grade of screen cloth blade is crushed.Support frame 1 and packing ring
One 8 coordinate, and have adjusted main shaft with crushing the gap of the pump housing, it is ensured that the sealing of the pump housing.Support frame 1 exists with the pump housing 1
Outer screen cloth one is externally provided with passage there is provided the runner that higher level's material is circulated to subordinate's crushing chamber, can by embedded location structure
To block feed back short-circuit conditions to occur completely.
As shown in figure 1, the pump housing two, the pump housing three, the composition of the pump housing four and the pump housing one are identical, the pump housing is assembled successively from down to up.
From top to bottom, mesh size is sequentially reduced the pump housing, and interior mesh size is slightly larger than outer mesh size, each pump housing in each pump housing
China and foreign countries' mesh size is all slightly larger than the interior mesh size of next pump housing, 100 mesh is reached after one-level coarse crushing, two grades finely divided
After reach 250 mesh, reach 500 mesh after 350 mesh, level Four ultramicro grinding are reached after three-level ultra-fine grinding.Four pump housings are folded successively
Add up, by bolt tightening, there is washer sealing between the pump housing, formd between the pump housing and support frame from top to bottom into circuitous channel,
Material in the presence of gravity and centrifugal force, passes sequentially through four crushing pump housings, carried out step by step eight times after charging aperture entrance
Crush.
As shown in figure 1, the pump housing uses assembly type, when level Four, which crushes the pump housing, all to be used, most fine crushing can be carried out.When
, can be by adjusting the aperture of screen cloth in the wheel cylinder body of bottom, to adjust discharging particle diameter, according to actual life when the particle diameter of crushing is smaller
Production needs, and meets the crushing of different requirements.The method of the bolt tightening pump housing, easy assembly and disassembly cleaning.
As shown in figure 1, the pump housing and motor are located in the middle of pump housing top cover using placement, charging aperture is erect, opening upwards, discharging
Mouthfuls 16 are located at pump housing bottommost, not only improve material by charging aperture 1 enter after once by each layer pump housing, space is saved again, is made
Compact equipment.
Base fixes bearing block and motor, it is ensured that stability when equipment pulverizer runs at high speed.Between bearing block and the pump housing
Added with chilled water unit, it can effectively alleviate temperature rise of the main shaft 18 when high speed rotates, protection equipment, it is ensured that the quality of production.
Claims (5)
1. assembling main shaft is erect on a kind of new level Four ultra micro wet process disintegrator, including base, bearing block, bearing block, by electricity
Motivation drives；Using level Four, formula is crushed step by step, and by one-level coarse crushing, two grades finely divided, three-level ultra-fine grinding, level Four Ultramicro-powder
It is broken to be incorporated into an equipment；The pump housing is crushed to combine above and below the pump housing and is linked and packed by four sections；The pump housing is arranged on bearing block by flange
On, certain space is left between the pump housing and bearing block, equipped with water-cooling apparatus；Main shaft fixes four row's impellers and blade in the axial direction,
Per level work chamber using the combination of inside and outside two layers of customization metallic sieve and blade, the four rows impeller and blade respectively with inside and outside level Four
Screen cloth, which coordinates, to be crushed；It is connected at the top of the pump housing by bolt with end cap, upward charging aperture is provided with the middle of end cap, discharging opening is opened
In the bottom of the pump housing.
2. a kind of super wet micro comminution machine of new level Four as claimed in claim 1, is further characterized in that：It is solid in each pump housing
Surely there is inside and outside two layers of customization metallic sieve, it is small that outer mesh size at the same level is slightly less than mesh size in inner screen aperture, lower floor's pump housing
The mesh size in the pump housing of upper strata；It is described two layers customization metallic sieve be fixed on embedded positioning supporting frame, support frame with it is next
It is material channel between the level pump housing, makes material after two layers of screen cloth, crushed again in the interior screen cloth that next pump housing can be travelled back across.
3. a kind of new level Four ultra micro wet process disintegrator as claimed in claim 1, it is characterised in that：The pump housing is crushed by level Four
The pump housing is connected, and top end cap is bound, and bottom is fixed on bearing block, by bolt tightening；Between the wet method pump housing and main shaft away from
Adjust, be fully sealed inside and outside every grade between screen cloth from by adjusting bed course.
4. a kind of new level Four ultra micro wet process disintegrator as claimed in claim 1, is further characterized in that：It is simultaneously solid on main shaft
Four row's impellers and four row's blades are determined；Include one group of impeller and one group of blade in each pump housing, the impeller coordinates with interior screen cloth
Crushed, while blade is located at outside interior screen cloth, cooperation crushing is carried out with outer screen cloth.
5. a kind of new level Four ultra micro wet process disintegrator as claimed in claim 1, is further characterized in that：The pump housing erects assembling
On bearing block, bearing block and motor are erect and are fixed on base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180523.8A CN107225026A (en) | 2016-03-26 | 2016-03-26 | A kind of new level Four ultra micro wet process disintegrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610180523.8A CN107225026A (en) | 2016-03-26 | 2016-03-26 | A kind of new level Four ultra micro wet process disintegrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107225026A true CN107225026A (en) | 2017-10-03 |
Family
ID=59932507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610180523.8A Pending CN107225026A (en) | 2016-03-26 | 2016-03-26 | A kind of new level Four ultra micro wet process disintegrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107225026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844637A (en) * | 2021-01-08 | 2021-05-28 | 无锡赫普轻工设备技术有限公司 | Self-circulation multistage rubbing crusher |
| CN113731576A (en) * | 2021-08-20 | 2021-12-03 | 华中科技大学 | Dynamic compression layered crusher |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126848A (en) * | 1994-10-31 | 1996-05-21 | Masuko Sangyo Co Ltd | Production of pulverized fine powder and device therefor |
| CN201454634U (en) * | 2009-09-16 | 2010-05-12 | 湖南金能科技股份有限公司 | Multilevel circulating pulverizer |
| CN201978783U (en) * | 2010-12-20 | 2011-09-21 | 无锡赫普轻工设备技术有限公司 | Cutting type super-large flow wet-process grinder |
| CN202021077U (en) * | 2010-12-20 | 2011-11-02 | 无锡赫普轻工设备技术有限公司 | Wet ultrafine grinding equipment for fiber material |
| CN204685225U (en) * | 2015-05-21 | 2015-10-07 | 无锡赫普轻工设备技术有限公司 | Wetting pulverizer |
| CN204974076U (en) * | 2015-09-15 | 2016-01-20 | 江西现代职业技术学院 | Material grinding device |
| CN205435902U (en) * | 2016-03-26 | 2016-08-10 | 无锡赫普轻工设备技术有限公司 | Novel super little waterproof pulverization of level four machine |
-
2016
- 2016-03-26 CN CN201610180523.8A patent/CN107225026A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08126848A (en) * | 1994-10-31 | 1996-05-21 | Masuko Sangyo Co Ltd | Production of pulverized fine powder and device therefor |
| CN201454634U (en) * | 2009-09-16 | 2010-05-12 | 湖南金能科技股份有限公司 | Multilevel circulating pulverizer |
| CN201978783U (en) * | 2010-12-20 | 2011-09-21 | 无锡赫普轻工设备技术有限公司 | Cutting type super-large flow wet-process grinder |
| CN202021077U (en) * | 2010-12-20 | 2011-11-02 | 无锡赫普轻工设备技术有限公司 | Wet ultrafine grinding equipment for fiber material |
| CN204685225U (en) * | 2015-05-21 | 2015-10-07 | 无锡赫普轻工设备技术有限公司 | Wetting pulverizer |
| CN204974076U (en) * | 2015-09-15 | 2016-01-20 | 江西现代职业技术学院 | Material grinding device |
| CN205435902U (en) * | 2016-03-26 | 2016-08-10 | 无锡赫普轻工设备技术有限公司 | Novel super little waterproof pulverization of level four machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112844637A (en) * | 2021-01-08 | 2021-05-28 | 无锡赫普轻工设备技术有限公司 | Self-circulation multistage rubbing crusher |
| CN113731576A (en) * | 2021-08-20 | 2021-12-03 | 华中科技大学 | Dynamic compression layered crusher |
| WO2023019755A1 (en) * | 2021-08-20 | 2023-02-23 | 华中科技大学 | Dynamic compression layered crusher |
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Application publication date: 20171003 |