CN105665103A - Drying and smashing device with grading function - Google Patents
Drying and smashing device with grading function Download PDFInfo
- Publication number
- CN105665103A CN105665103A CN201610057293.6A CN201610057293A CN105665103A CN 105665103 A CN105665103 A CN 105665103A CN 201610057293 A CN201610057293 A CN 201610057293A CN 105665103 A CN105665103 A CN 105665103A
- Authority
- CN
- China
- Prior art keywords
- conical shell
- grading
- shaft
- cloth bag
- sleeve
- 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
- 238000001035 drying Methods 0.000 title claims abstract description 24
- 238000010298 pulverizing process Methods 0.000 claims description 28
- 239000004744 fabric Substances 0.000 claims description 27
- 210000004907 gland Anatomy 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 10
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 230000000740 bleeding effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000843 powder Substances 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- DSSYKIVIOFKYAU-XVKPBYJWSA-N (1s,4r)-4,7,7-trimethylbicyclo[2.2.1]heptan-3-one Chemical compound C1C[C@@]2(C)C(=O)C[C@H]1C2(C)C DSSYKIVIOFKYAU-XVKPBYJWSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002994 raw material 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
- B02C19/00—Other disintegrating devices or methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/10—Ultraviolet radiation
-
- 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
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- 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
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a drying and smashing device with a grading function. The drying and smashing device comprises a conical shell, a grading shaft is arranged in the conical shell and sleeved with a sleeve shaft, the sleeve shaft is connected with the grading shaft through bearings at the two ends of the sleeve shaft, and the sleeve shaft and the grading shaft both penetrate through the bottom of the conical shell and extend out of the conical shell. A feed inlet is formed in the left side of the bottom of the conical shell. A plurality of smashing discs are arranged at the bottom, located in the conical shell, of the sleeve shaft. A supporting block is arranged above the smashing discs, and a pressing cover is arranged above the supporting block. A conical smashing barrel is arranged between the supporting block and the pressing cover, and a smashing ring is arranged in the position, corresponding to the smashing barrel, of the conical shell. The drying and smashing device is reasonable in structure design and convenient to use, materials can be fully smashed, and ultrafine powder can be produced or the yield can be increased. Meanwhile, an airflow grading wheel and an airflow guiding ring are arranged at the upper end of the grading shaft, so that thick powder is not prone to being mixed in fine powder, and good smashing and grading precision is achieved; drying and sterilization effects are achieved.
Description
Technical field
The present invention relates to a kind of reducing mechanism, specifically a kind of drying and crushing device with grading function.
Background technology
In the processing such as nonmetallic mineral, macromolecular material, the raw material of industry, chemicals, food and feedstuff, owing to the characteristic of some materials is different, the particularly material of some big specific volumes, during as white carbon, Ac foaming agent, camphor powder etc. are carried out superfine grinding, its its crushing effect of existing pulverizer is undesirable, product fineness does not reach requirement, does not have grading function, and crush efficiency is low, be difficult to the problems such as the material processing various characteristic and shape. Further, existing pulverizer can not carry out the dry of material, and the moisture content of material is on crush efficiency impact greatly.
Therefore, be badly in need of a kind of can the crushing effect reducing mechanism that material can be dried again of ideal.
Summary of the invention
It is an object of the invention to provide a kind of drying and crushing device with grading function, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of drying and crushing device with grading function, including conical shell, it is provided with grading shaft in described conical shell, it is set with sleeve outside described grading shaft, described sleeve is connected with grading shaft by the bearing at its two ends, described sleeve and grading shaft both pass through and extend to outside conical shell bottom conical shell, and described grading shaft bottom is provided with classification belt pulley, and described sleeve bottom is provided with set shaft pulley; Described conical shell bottom left is provided with charging aperture; It is positioned on bottom the sleeve of conical shell and is provided with multiple grating disk, the conical shell inwall of described grating disk and correspondence is provided with spiral fluted and pulverizes rod; Described grating disk upper end is provided with tray, and described tray upper end is provided with gland, and described tray and gland are all set in outside sleeve; Being provided with the pulverization cylinder of taper between described tray and gland, described conical shell and pulverization cylinder corresponding position are provided with pulverizing circle, and outside described pulverization cylinder and pulverizing circle inner side is provided with cone tooth;Described conical shell upper end is provided with top board, it is provided with cloth bag in the space that described top board and gland exist, described cloth bag upper end and top board are fixedly linked, described cloth bag lower end and conical shell inwall are fixedly linked, described cloth bag is circular cone shape, described cloth bag constitutes pneumatic conveying drying chamber with top board and conical shell inwall, it is provided with air inlet pipe on the left of described pneumatic conveying drying chamber, described air inlet pipe is provided with impulse electromagnetic valve, on the left of described pneumatic conveying drying chamber, right side is provided with air vent, and described air vent is provided with air bleeding valve; Being provided with air flow guiding circle in described cloth bag, described air flow guiding snare is loaded on outside grading shaft, and described top board lower end is provided with the annular groove adaptive with air flow guiding circle, is provided with the discharging opening of through top board in the middle part of described annular groove; Described discharging opening lower end is provided with air current classifying wheel adaptive with it, and described air current classifying wheel is fixed on the top of grading shaft by retainer ring, and described air current classifying wheel is positioned at air flow guiding circle.
As the further scheme of the present invention: be provided with deflector between described air inlet pipe and cloth bag.
As the present invention further scheme: described gland lower end is provided with annular fixture block, and described pulverization cylinder upper end is provided with the annular slot matched, and described gland is fixed on pulverization cylinder upper end by clamping screw.
Compared with prior art, the invention has the beneficial effects as follows: utilize air-flow to be sucked from bottom charging aperture by material, material first passes through and carries out the staggered pulverizing of one-level between grating disk and conical shell corresponding thereto, band spiral fluted is set and pulverizes rod, strengthen crushing effect, then material is further through with the pulverization cylinder of cone tooth and corresponding be arranged on conical shell internal face and jointly carry out two grades with the pulverizing circle of cone tooth staggered pulverize, effectively expand crushed zone, strengthen grindability, so that high shear force when material is subject to forced flow, fully pulverized, significant increase nonferromagnetic substance, can effectively process the material of various characteristic and shape, be conducive to producing micropowder or improving yield, pass through cloth bag simultaneously, the setting of air inlet pipe and impulse electromagnetic valve makes the material after pulverizing quickly carry out exchange of moisture, dampness is discharged through air vent, dried material passes through conical shell overdraught baffle liner, the air current classifying wheel place on grading shaft is entered then through annular groove, material is carried out grading, final finished is discharged by air current classifying wheel top discharging opening, described discharge outlet is provided with Burdick lamp, finished product can be sterilized. arranging deflector, the compression air for blocking air inlet pipe makes it can not directly blow to cloth bag, in order to avoid compression air at a high speed damages cloth bag, described grading shaft and sleeve are arranged concentrically, and classification belt pulley and set shaft pulley are positioned at homonymy, convenient driving.
In sum, present configuration is reasonable in design, easy to use, material is fully pulverized, and is conducive to producing micropowder or improving yield, and grading shaft upper end is provided with the setting of air current classifying wheel and air flow guiding circle simultaneously, make coarse powder not easily be mixed in fine powder, there is good crushing and classification precision; There is dry and sterilizing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drying and crushing device with grading function.
In figure: 1-charging aperture, 2-conical shell, 3-pulverization cylinder, 4-pulverizes circle, 5-bores tooth, 6-deflector, 7-impulse electromagnetic valve, 8-air inlet pipe, 9-retainer ring, 10-air current classifying is taken turns, 11-discharging opening, 12-Burdick lamp, 13-annular groove, 14-air flow guiding circle, 15-pneumatic conveying drying chamber, 16-cloth bag, 17-air vent, 18-air bleeding valve, 19-gland, 20-fixture block, 21-draw-in groove, 22-clamping screw, 23-tray, 24-pulverizes rod, 25-grating disk, 26-bearing, 27-classification belt pulley, 28-grading shaft, 29-sleeve, 30-overlaps shaft pulley, 31-top board.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, a kind of drying and crushing device with grading function, including conical shell 2, it is provided with grading shaft 28 in described conical shell 2, being set with sleeve 29 outside described grading shaft 28, described sleeve 29 is connected with grading shaft 28 by the bearing 26 at its two ends, and described sleeve 29 and grading shaft 28 both pass through and extend to outside conical shell 2 bottom conical shell 2, described grading shaft 28 bottom is provided with classification belt pulley 27, and described sleeve 29 bottom is provided with set shaft pulley 30, at the bottom of described conical shell, 2 left sides are provided with charging aperture 1, it is positioned on bottom the sleeve 29 of conical shell 2 and is provided with multiple grating disk 25, conical shell 2 inwall of described grating disk 25 and correspondence is provided with spiral fluted and pulverizes rod 24, described grating disk 25 upper end is provided with tray 23, and described tray 23 upper end is provided with gland 19, and described tray 23 and gland 19 are all set in outside sleeve 29, being provided with the pulverization cylinder 3 of taper between described tray 23 and gland 19, described conical shell 2 and pulverization cylinder 3 corresponding position are provided with pulverizing circle 4, are provided with cone tooth 5 outside described pulverization cylinder 3 and inside pulverizing circle 4, described conical shell 2 upper end is provided with top board 31, it is provided with cloth bag 16 in the space that described top board 31 and gland 19 exist, described cloth bag 16 upper end and top board 31 are fixedly linked, described cloth bag 16 lower end and conical shell 2 inwall are fixedly linked, described cloth bag 16 is in circular cone shape, described cloth bag 16 constitutes pneumatic conveying drying chamber 15 with top board 31 and conical shell 2 inwall, it is provided with air inlet pipe 8 on the left of described pneumatic conveying drying chamber 15, described air inlet pipe 8 is provided with impulse electromagnetic valve 7, on the left of described pneumatic conveying drying chamber 15, right side is provided with air vent 17, described air vent 17 is provided with air bleeding valve 18, it is provided with air flow guiding circle 14 in described cloth bag 16, described air flow guiding circle 14 is set in outside grading shaft 28, described top board 31 lower end is provided with and the annular groove 13 of air flow guiding circle 14 adaptation, is provided with the discharging opening 11 of through top board 31 in the middle part of described annular groove 13, described discharging opening 11 lower end is provided with air current classifying wheel 10 adaptive with it, and described air current classifying wheel 10 passes through retainer ring 9 and is fixed on the top of grading shaft 28, and described air current classifying wheel 10 is positioned at air flow guiding circle 14.
The operation principle of the present invention is: utilize air-flow to be sucked from bottom charging aperture 1 by material, material first passes through and carries out the staggered pulverizing of one-level between grating disk 25 and conical shell corresponding thereto 2, band spiral fluted is set and pulverizes rod 24, strengthen crushing effect, then material is further through with the pulverization cylinder 3 of cone tooth 5 and corresponding be arranged on conical shell 2 internal face and jointly carry out two grades with the pulverizing circle 4 of cone tooth 5 staggered pulverize, effectively expand crushed zone, strengthen grindability, so that high shear force when material is subject to forced flow, fully pulverized, significant increase nonferromagnetic substance, can effectively process the material of various characteristic and shape, be conducive to producing micropowder or improving yield, simultaneously by cloth bag 16, the setting of air inlet pipe 8 and impulse electromagnetic valve 7 makes the material after pulverizing quickly carry out exchange of moisture, dampness is discharged through air vent 17, dried material passes through conical shell 2 overdraught baffle liner 14, enter the air current classifying on grading shaft 28 then through annular groove 13 and take turns 10 places, material is carried out grading, final finished is taken turns discharging opening 11 above in the of 10 by air current classifying and is discharged, described discharging opening 11 place is provided with Burdick lamp 12, finished product can be sterilized.Arranging deflector 6, the compression air for blocking air inlet pipe 8 makes it can not directly blow to cloth bag 16, in order to avoid compression air at a high speed damages cloth bag 16; Described grading shaft 28 and sleeve 29 are arranged concentrically, and classification belt pulley 27 and set shaft pulley 30 are positioned at homonymy, convenient driving.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in the present invention. Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should be made as a whole by those skilled in the art, and the technical scheme in each embodiment through appropriately combined, can also form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. a drying and crushing device with grading function, including conical shell, it is characterized in that, it is provided with grading shaft in described conical shell, being set with sleeve outside described grading shaft, described sleeve is connected with grading shaft by the bearing at its two ends, and described sleeve and grading shaft both pass through and extend to outside conical shell bottom conical shell, described grading shaft bottom is provided with classification belt pulley, and described sleeve bottom is provided with set shaft pulley; Described conical shell bottom left is provided with charging aperture; It is positioned on bottom the sleeve of conical shell and is provided with multiple grating disk, the conical shell inwall of described grating disk and correspondence is provided with spiral fluted and pulverizes rod; Described grating disk upper end is provided with tray, and described tray upper end is provided with gland, and described tray and gland are all set in outside sleeve; Being provided with the pulverization cylinder of taper between described tray and gland, described conical shell and pulverization cylinder corresponding position are provided with pulverizing circle, and outside described pulverization cylinder and pulverizing circle inner side is provided with cone tooth; Described conical shell upper end is provided with top board, it is provided with cloth bag in the space that described top board and gland exist, described cloth bag upper end and top board are fixedly linked, described cloth bag lower end and conical shell inwall are fixedly linked, described cloth bag is circular cone shape, described cloth bag constitutes pneumatic conveying drying chamber with top board and conical shell inwall, it is provided with air inlet pipe on the left of described pneumatic conveying drying chamber, described air inlet pipe is provided with impulse electromagnetic valve, on the left of described pneumatic conveying drying chamber, right side is provided with air vent, and described air vent is provided with air bleeding valve; Being provided with air flow guiding circle in described cloth bag, described air flow guiding snare is loaded on outside grading shaft, and described top board lower end is provided with the annular groove adaptive with air flow guiding circle, is provided with the discharging opening of through top board in the middle part of described annular groove; Described discharging opening lower end is provided with air current classifying wheel adaptive with it, and described air current classifying wheel is fixed on the top of grading shaft by retainer ring, and described air current classifying wheel is positioned at air flow guiding circle.
2. the drying and crushing device with grading function according to claim 1, it is characterised in that be provided with deflector between described air inlet pipe and cloth bag.
3. the drying and crushing device with grading function according to claim 1, it is characterized in that, described gland lower end is provided with annular fixture block, and described pulverization cylinder upper end is provided with the annular slot matched, and described gland is fixed on pulverization cylinder upper end by clamping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057293.6A CN105665103A (en) | 2016-01-26 | 2016-01-26 | Drying and smashing device with grading function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610057293.6A CN105665103A (en) | 2016-01-26 | 2016-01-26 | Drying and smashing device with grading function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105665103A true CN105665103A (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610057293.6A Pending CN105665103A (en) | 2016-01-26 | 2016-01-26 | Drying and smashing device with grading function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178851A (en) * | 2016-08-15 | 2016-12-07 | 宁波德泰化学有限公司 | A kind of centrifugal classification dehydrating unit |
| CN106733014A (en) * | 2016-11-29 | 2017-05-31 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of stagewise industrial chemicals disintegrating machine |
| CN107101495A (en) * | 2017-05-09 | 2017-08-29 | 贵州务川灿烂鑫铖农业科技发展有限公司 | Sheep feed process equipment |
| CN113680472A (en) * | 2021-08-28 | 2021-11-23 | 徐阳 | Efficient chinese-medicinal material rubbing crusher |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2673505Y (en) * | 2004-01-08 | 2005-01-26 | 尤晓栋 | High speed rotating grinding drying machine |
| JP2005279613A (en) * | 2004-03-31 | 2005-10-13 | Jdc Corp | Method for crushing brittle material and crusher |
| CN203116435U (en) * | 2013-03-13 | 2013-08-07 | 南通市纳百园化工有限公司 | Pneumatic drying device used for powder products |
| CN103706458A (en) * | 2013-12-29 | 2014-04-09 | 无锡科技职业学院 | Conical superfine grinding grading machine |
| CN103736572A (en) * | 2013-12-31 | 2014-04-23 | 昆明特康科技有限公司 | Circulating fluidized bed equipment with drying, crushing and sterilizing functions |
| CN104525341A (en) * | 2014-12-31 | 2015-04-22 | 江苏天琦生物科技有限公司 | Flash dryer |
| CN204730608U (en) * | 2015-06-15 | 2015-10-28 | 山阳奥科粉体有限公司 | A kind of drying and crushing classification integral type superfine powder treating apparatus |
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2016
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2673505Y (en) * | 2004-01-08 | 2005-01-26 | 尤晓栋 | High speed rotating grinding drying machine |
| JP2005279613A (en) * | 2004-03-31 | 2005-10-13 | Jdc Corp | Method for crushing brittle material and crusher |
| CN203116435U (en) * | 2013-03-13 | 2013-08-07 | 南通市纳百园化工有限公司 | Pneumatic drying device used for powder products |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178851A (en) * | 2016-08-15 | 2016-12-07 | 宁波德泰化学有限公司 | A kind of centrifugal classification dehydrating unit |
| CN106733014A (en) * | 2016-11-29 | 2017-05-31 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of stagewise industrial chemicals disintegrating machine |
| CN107101495A (en) * | 2017-05-09 | 2017-08-29 | 贵州务川灿烂鑫铖农业科技发展有限公司 | Sheep feed process equipment |
| CN113680472A (en) * | 2021-08-28 | 2021-11-23 | 徐阳 | Efficient chinese-medicinal material rubbing crusher |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |