CN111644228A - Vertical ore mill - Google Patents
Vertical ore mill Download PDFInfo
- Publication number
- CN111644228A CN111644228A CN202010581998.4A CN202010581998A CN111644228A CN 111644228 A CN111644228 A CN 111644228A CN 202010581998 A CN202010581998 A CN 202010581998A CN 111644228 A CN111644228 A CN 111644228A
- Authority
- CN
- China
- Prior art keywords
- grinding
- main machine
- roller
- output end
- crushing
- 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 claims abstract description 51
- 238000003860 storage Methods 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 abstract description 27
- 230000000694 effects Effects 0.000 abstract description 11
- 238000007873 sieving Methods 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 5
- 238000012216 screening Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000003801 milling Methods 0.000 description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- 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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/26—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a grid or grating
-
- 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
- B07B1/50—Cleaning
- B07B1/55—Cleaning with fluid jets
-
- 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 Grinding (AREA)
Abstract
The invention discloses a vertical ore grinding mill, and belongs to the technical field of ore processing. The grinding device comprises a main machine, wherein a material sieving plate is arranged in the middle of the main machine, a grinding device is arranged on the upper portion of the material sieving plate and consists of a hydraulic cylinder, a middle shell, a servo motor and a grinding roller, the output end of the hydraulic cylinder is connected with the middle shell, the servo motor is fixedly arranged in the middle shell, the grinding roller is sleeved at the output end of the servo motor, conical crushing heads are arranged on the outer surface of the grinding roller at intervals, and a conical grinding head is fixedly arranged at the bottom of the grinding roller. According to the invention, the grinding roller generates high-speed mechanical force, so that a cracking effect is generated on materials, hard ores can be quickly crushed, the ore crushing efficiency is improved, the ores are more fully decomposed, the air pump conveys strong airflow, the ash removal effect is generated on the screening plate, the blocking of the screening plate by the ores is avoided, and the fluidity of the internal materials is improved.
Description
Technical Field
The invention relates to the technical field of ore processing, in particular to a vertical ore grinding machine.
Background
The ore is often crushed and ground before being processed into rock wool, and the ore grinding operation is usually performed by an ore mill. The design of current ore crusher is more traditional, when moving, can only once grind the ore, because the ore volume is great, often takes place to grind insufficient problem, and can not filter the ore after grinding at the in-process that grinds, causes not abundant grinding raw materials also to be discharged, leads to current grinding machine efficiency not high, and production efficiency is lower simultaneously.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the defects and shortcomings in the prior art, the invention provides the vertical ore grinding machine, the high-speed mechanical force is generated by the grinding roller, so that the cracking effect is generated on materials, hard ores can be quickly crushed, the ore crushing efficiency is improved, the ores are more sufficiently decomposed, the air pump conveys strong airflow and the strong airflow is sprayed out through the spray head, the ash removal effect is generated on the screening plate, the blocking of the screening plate by mineral materials is avoided, and the fluidity of the internal materials is improved.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses a vertical ore grinding mill, which comprises a main machine, wherein a plurality of groups of roller type crushing devices with the same model are installed at the inner side of the main machine at intervals, each roller type crushing device consists of a driving motor, a main shaft, a crushing roller and a gear ring, the driving motor is fixedly installed at the outer side of the main machine, the output end of the driving motor is connected with the main shaft, the outer ring of the main shaft is sleeved with the crushing roller, and the gear ring is fixedly welded on the outer surface of the crushing roller;
the grinding device comprises a main machine, a grinding roller, a hydraulic cylinder, a servo motor and a grinding roller, wherein the main machine is divided into two parts, namely an operating chamber and a storage chamber, the upper part of the screening plate is provided with a grinding device, the grinding device comprises the hydraulic cylinder, a middle shell, the servo motor and the grinding roller, the hydraulic cylinder is fixedly arranged on the outer surface of the main machine, the output end of the hydraulic cylinder extends into the main machine and is fixedly connected with the middle shell, the servo motor is fixedly arranged in the middle shell, the grinding roller is sleeved at the output end of the servo motor, conical crushing heads are arranged on the outer surface of the grinding roller at intervals, and a conical grinding head is fixedly arranged at;
the jet flow device is symmetrically arranged in the storage chamber and consists of an air pump, a middle pipeline, an air injection plate, a spray head and a one-way valve, the output end of the air pump is communicated with the middle pipeline, the one-way valve is arranged on the pipeline of the middle pipeline at intervals, the output end of the middle pipeline is communicated with the air injection plate, and the spray head is arranged on the surface of the air injection plate at intervals.
Furthermore, the main shaft is horizontally arranged in the main machine, and the crushing rollers are arranged in the main machine at equal intervals.
Furthermore, the upper part of the operation chamber is provided with a feed inlet, and the bottom of the storage chamber is provided with a discharge outlet.
Furthermore, the air injection plate is obliquely arranged in the storage chamber, and the output end of the spray head points to the bottom of the sieve plate.
Furthermore, the center of the sieve plate is concave, the middle part of the sieve plate is provided with a hole, and a coarse filter screen is embedded in the hole.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
according to the invention, initial extrusion force is caused to ore by the roller type crushing device, the conical grinding head at the bottom of the grinding roller can grind and grind materials stacked on the surface of the material sieving plate when rotating at high speed, and the conical crushing head at the outer ring of the grinding roller can generate high-speed mechanical force when rotating at high speed, so that a cracking effect is generated on the materials, hard ore can be quickly crushed, the ore crushing efficiency is improved, the ore is more fully decomposed, the air pump conveys strong airflow and the airflow is sprayed out through the spray head, so that an ash cleaning effect is generated on the material sieving plate, the material sieving plate is prevented from being blocked by the mineral materials, and the fluidity of the internal materials is improved.
Drawings
FIG. 1 is an internal structural view of the present invention;
FIG. 2 is a side view of the roller crusher device of the present invention;
FIG. 3 is a view showing the structure of a jet flow device according to the present invention;
figure 4 is a top view of the milling apparatus of the present invention.
In the figure: 1. a host; 11. an operation chamber; 12. a storage chamber; 13. a feed inlet; 14. a discharge port; 2. a roller crushing device; 21. a drive motor; 22. a main shaft; 23. a crushing roller; 24. a ring gear; 3. a milling device; 31. a hydraulic cylinder; 32. a middle housing; 33. a servo motor; 34. grinding the roller; 341. a conical crushing head; 342. a conical grinding head; 4. a material sieving plate; 5. a jet flow device; 51. an air pump; 52. an intermediate pipeline; 53. an air jet plate; 54. a spray head; 55. a one-way valve.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1
As can be seen from fig. 1-4, the vertical ore mill of this embodiment includes a main frame 1, a plurality of sets of roller type crushing devices 2 with the same model are installed at intervals on the inner side of the main frame 1, each roller type crushing device 2 is composed of a driving motor 21, a main shaft 22, a crushing roller 23 and a gear ring 24, the driving motor 21 is fixedly installed on the outer side of the main frame 1, the output end of the driving motor 21 is connected with the main shaft 22, the outer ring of the main shaft 22 is sleeved with the crushing roller 23, and the gear ring 24 is fixedly welded on the outer surface of the crushing.
The middle part of host computer 1 is provided with sieve flitch 4, sieve flitch 4 is cut apart into two parts with host computer 1, be operation room 11 and storage compartment 12 respectively, feed inlet 13 has been seted up on the upper portion of operation room 11, discharge gate 14 has been seted up to the bottom of storage compartment 12, the ore passes through in feed inlet 13 input operation room 11, feed inlet 13 is for opening the form, so that observe the inside storage condition of host computer 1, avoid the too much material that causes of feed to pile up, the material that grinds the completion is discharged through discharge gate 14.
The center of the sieve plate 4 is concave, the middle part of the sieve plate 4 is provided with a hole, a coarse strainer is embedded in the hole, materials accumulated on the outer edge of the sieve plate 4 can move towards the center of the sieve plate 4 under the action of gravity, small-sized mineral aggregates can be led into the storage chamber 12 through the coarse strainer, and large-sized mineral aggregates are retained on the surface of the sieve plate 4 to wait for milling.
The upper portion of sieve flitch 4 is provided with milling device 3, milling device 3 comprises pneumatic cylinder 31, middle casing 32, servo motor 33 and the roller 34 of milling, pneumatic cylinder 31 fixed mounting is in the surface of host computer 1, the output of pneumatic cylinder 31 extends to the inside and fixedly connected with middle casing 32 of host computer 1, the inside fixed mounting of middle casing 32 has servo motor 33, servo motor 33's output cover is equipped with grinding roller 34, the surface interval of grinding roller 34 is provided with toper crushing head 341, the fixed toper grinding head 342 that is provided with in bottom of grinding roller 34.
The casing 32 in the middle of the pneumatic cylinder 31 can drive, servo motor 33 and grinding roller 34 carry out whole displacement, milling device 3 optional sets up 2-8 groups, ensure that milling device 3's actual work scope can effectively cover 1 host computer 1 inner chamber more than 90 percent the space can, the toper grinding head 342 of grinding roller 34 bottom can roll to piling up the material on sieve flitch 4 face when high-speed rotatory, grind, the toper crushing head 341 of grinding roller 34 outer lane can produce high-speed mechanical force when high-speed rotatory, thereby produce the schizolysis effect to the material, the certain safe distance of last face interval of toper grinding head 342 minimum height distance sieve flitch 4, when ensuring that grinding roller 34 rotates at a high speed, can not damage sieve flitch 4.
The jet flow devices 5 are symmetrically arranged in the storage chamber 12, each jet flow device 5 is composed of an air pump 51, an intermediate pipeline 52, an air injection plate 53, a spray head 54 and a one-way valve 55, the output end of the air pump 51 is communicated with the intermediate pipeline 52, the one-way valves 55 are arranged on pipelines of the intermediate pipeline 52 at intervals, the one-way valves 55 avoid air flow backflow and can also avoid dust backflow into the air pump 51, the output end of the intermediate pipeline 52 is communicated with the air injection plate 53, and the spray heads 54 are arranged on the surface of the air injection plate 53 at intervals.
The jet board 53 sets up in the inside slope of storage compartment 12, and the directional bottom of sieve flitch 4 of output of shower nozzle 54, and air pump 51 carries powerful air current and spout through shower nozzle 54 to produce the deashing effect to sieve flitch 4, avoid sieve flitch 4 to be blockked up by the mineral aggregate, improve the mobility of inside material.
According to the invention, the roller type crushing device 2 causes initial extrusion force to ore, the conical grinding head 342 at the bottom of the grinding roller 34 can grind and grind the material stacked on the surface of the material sieving plate 4 when rotating at high speed, the conical crushing head 341 at the outer ring of the grinding roller 34 can generate high-speed mechanical force when rotating at high speed, so that a cracking effect is generated on the material, hard ore can be quickly crushed, the ore crushing efficiency is improved, the ore is more fully decomposed, the air pump 51 can deliver strong airflow and spray the airflow through the spray head 54, so that a dust cleaning effect is generated on the material sieving plate 4, the material sieving plate 4 is prevented from being blocked by the ore, and the fluidity of the internal material is improved.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (5)
1. A vertical ore mill, comprising a main machine (1), characterized in that: the roller type crushing device comprises a main machine (1), wherein a plurality of groups of roller type crushing devices (2) with the same model are installed on the inner side of the main machine (1) at intervals, each roller type crushing device (2) consists of a driving motor (21), a main shaft (22), a crushing roller (23) and a gear ring (24), the driving motor (21) is fixedly installed on the outer side of the main machine (1), the output end of the driving motor (21) is connected with the main shaft (22), the outer ring of the main shaft (22) is sleeved with the crushing roller (23), and the gear ring (24) is fixedly welded on the outer surface;
the middle part of the main machine (1) is provided with a sieve plate (4), the sieve plate (4) divides the main machine (1) into two parts, namely an operation chamber (11) and a storage chamber (12), the upper part of the sieve plate (4) is provided with a grinding device (3), the grinding device (3) consists of a hydraulic cylinder (31), a middle shell (32), a servo motor (33) and a grinding roller (34), the hydraulic cylinder (31) is fixedly arranged on the outer surface of the main machine (1), the output end of the hydraulic cylinder (31) extends into the main machine (1) and is fixedly connected with the middle shell (32), the servo motor (33) is fixedly arranged in the middle shell (32), the output end of the servo motor (33) is sleeved with the grinding roller (34), conical crushing heads (341) are arranged on the outer surface of the grinding roller (34) at intervals, and conical grinding heads (342) are fixedly arranged at the bottom of the grinding roller (34);
the jet flow device (5) is symmetrically arranged in the storage chamber (12), the jet flow device (5) is composed of an air pump (51), a middle pipeline (52), an air injection plate (53), a spray head (54) and a one-way valve (55), the output end of the air pump (51) is communicated with the middle pipeline (52), the one-way valve (55) is arranged on the pipeline of the middle pipeline (52) at intervals, the output end of the middle pipeline (52) is communicated with the air injection plate (53), and the spray head (54) is arranged on the plate surface of the air injection plate (53) at intervals.
2. A vertical ore mill according to claim 1, characterized in that: the main shaft (22) is horizontally arranged in the main machine (1), and the crushing rollers (23) are arranged in the main machine (1) at equal intervals.
3. A vertical ore mill according to claim 1, characterized in that: the upper part of the operation chamber (11) is provided with a feed inlet (13), and the bottom of the storage chamber (12) is provided with a discharge outlet (14).
4. A vertical ore mill according to claim 1, characterized in that: the air injection plate (53) is obliquely arranged in the storage chamber (12), and the output end of the spray head (54) points to the bottom of the sieve plate (4).
5. A vertical ore mill according to claim 1, characterized in that: the center of the sieve plate (4) is concave, the middle part of the sieve plate (4) is provided with a hole, and a coarse filter screen is embedded in the hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581998.4A CN111644228A (en) | 2020-06-23 | 2020-06-23 | Vertical ore mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010581998.4A CN111644228A (en) | 2020-06-23 | 2020-06-23 | Vertical ore mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111644228A true CN111644228A (en) | 2020-09-11 |
Family
ID=72344279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010581998.4A Pending CN111644228A (en) | 2020-06-23 | 2020-06-23 | Vertical ore mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111644228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625001A (en) * | 2022-12-20 | 2023-01-20 | 保定旗开得胜办公设备制造有限公司 | Even granularity carbon dust grinds preparation facilities for printer |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561980A (en) * | 1983-08-08 | 1985-12-31 | R. A. Couche & Associates Pty. Ltd. | Screening device |
| CN106269105A (en) * | 2016-08-25 | 2017-01-04 | 王辉 | A kind of shock-absorbing type capsule disintegrating mechanism |
| CN107138255A (en) * | 2017-06-14 | 2017-09-08 | 郑州永泰澳新商贸有限公司 | A kind of medical waste refuse treatment plant with sterilizing function |
| CN107470003A (en) * | 2017-09-29 | 2017-12-15 | 尚许静 | A kind of fire extinguisher dry powder grinds screening plant |
| CN207126589U (en) * | 2017-08-08 | 2018-03-23 | 天津北方创业市政工程集团有限公司 | A kind of high-efficiency multi-function building castoff pulverizer |
| CN108837881A (en) * | 2016-10-15 | 2018-11-20 | 充红娣 | A kind of solid-state drug grinder |
| CN208390106U (en) * | 2018-02-28 | 2019-01-18 | 邱云波 | A kind of reciprocation cycle food processing material pressing device not changing motor steering |
| CN208583448U (en) * | 2017-12-15 | 2019-03-08 | 唐成吉 | A kind of coal crushing device |
| CN208600449U (en) * | 2018-05-16 | 2019-03-15 | 广东全美花卉科技有限公司 | A kind of safe contaminated soil flushing screening installation |
| CN208695232U (en) * | 2018-07-06 | 2019-04-05 | 乌海市西部煤化工有限责任公司 | A kind of anticlogging wet coal crusher |
| CN109590211A (en) * | 2019-01-15 | 2019-04-09 | 杭州富义仓米业有限公司 | A kind of anti-clogging rice grading plant |
| CN110947448A (en) * | 2019-12-16 | 2020-04-03 | 枣庄鑫金山智能机械股份有限公司 | Gravel grinding and crushing safety screening device |
| CN210386008U (en) * | 2019-07-05 | 2020-04-24 | 山东惠民齐发果蔬有限责任公司 | Milling machine for mushroom |
| CN212309724U (en) * | 2020-06-23 | 2021-01-08 | 马鞍山市北大益丰环保科技有限责任公司 | Vertical ore mill |
-
2020
- 2020-06-23 CN CN202010581998.4A patent/CN111644228A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561980A (en) * | 1983-08-08 | 1985-12-31 | R. A. Couche & Associates Pty. Ltd. | Screening device |
| CN106269105A (en) * | 2016-08-25 | 2017-01-04 | 王辉 | A kind of shock-absorbing type capsule disintegrating mechanism |
| CN108837881A (en) * | 2016-10-15 | 2018-11-20 | 充红娣 | A kind of solid-state drug grinder |
| CN107138255A (en) * | 2017-06-14 | 2017-09-08 | 郑州永泰澳新商贸有限公司 | A kind of medical waste refuse treatment plant with sterilizing function |
| CN207126589U (en) * | 2017-08-08 | 2018-03-23 | 天津北方创业市政工程集团有限公司 | A kind of high-efficiency multi-function building castoff pulverizer |
| CN107470003A (en) * | 2017-09-29 | 2017-12-15 | 尚许静 | A kind of fire extinguisher dry powder grinds screening plant |
| CN208583448U (en) * | 2017-12-15 | 2019-03-08 | 唐成吉 | A kind of coal crushing device |
| CN208390106U (en) * | 2018-02-28 | 2019-01-18 | 邱云波 | A kind of reciprocation cycle food processing material pressing device not changing motor steering |
| CN208600449U (en) * | 2018-05-16 | 2019-03-15 | 广东全美花卉科技有限公司 | A kind of safe contaminated soil flushing screening installation |
| CN208695232U (en) * | 2018-07-06 | 2019-04-05 | 乌海市西部煤化工有限责任公司 | A kind of anticlogging wet coal crusher |
| CN109590211A (en) * | 2019-01-15 | 2019-04-09 | 杭州富义仓米业有限公司 | A kind of anti-clogging rice grading plant |
| CN210386008U (en) * | 2019-07-05 | 2020-04-24 | 山东惠民齐发果蔬有限责任公司 | Milling machine for mushroom |
| CN110947448A (en) * | 2019-12-16 | 2020-04-03 | 枣庄鑫金山智能机械股份有限公司 | Gravel grinding and crushing safety screening device |
| CN212309724U (en) * | 2020-06-23 | 2021-01-08 | 马鞍山市北大益丰环保科技有限责任公司 | Vertical ore mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115625001A (en) * | 2022-12-20 | 2023-01-20 | 保定旗开得胜办公设备制造有限公司 | Even granularity carbon dust grinds preparation facilities for printer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200911 |