CN211216904U - Special equipment for processing quartz material - Google Patents
Special equipment for processing quartz material Download PDFInfo
- Publication number
- CN211216904U CN211216904U CN201921808876.3U CN201921808876U CN211216904U CN 211216904 U CN211216904 U CN 211216904U CN 201921808876 U CN201921808876 U CN 201921808876U CN 211216904 U CN211216904 U CN 211216904U
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- grinding box
- side wall
- fixedly arranged
- primary
- box
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000010453 quartz Substances 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 title claims description 22
- 238000000227 grinding Methods 0.000 claims abstract description 125
- 238000011084 recovery Methods 0.000 claims description 29
- 238000001914 filtration Methods 0.000 claims description 11
- 239000011229 interlayer Substances 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 7
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 4
- 206010006514 bruxism Diseases 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 abstract description 26
- 239000002245 particle Substances 0.000 abstract description 18
- 239000008187 granular material Substances 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 238000012216 screening Methods 0.000 abstract description 3
- 238000003913 materials processing Methods 0.000 abstract description 2
- 241000220317 Rosa Species 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 description 15
- 238000004064 recycling Methods 0.000 description 11
- 239000002994 raw material Substances 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model discloses a quartz materials processing professional equipment, including elementary grinding case and inlet pipe, the inlet pipe is fixed to be set up lateral wall on elementary grinding case, and inlet pipe and elementary rose box inner chamber intercommunication, elementary rose box internal fixation is provided with the slope filter screen, and the fixed first motor that is provided with in elementary grinding case lateral wall upper end, the crushing pole of first motor output shaft fixedly connected with, the crushing pole inwards runs through elementary grinding case one side lateral wall and rotates with elementary grinding case opposite side inner wall and be connected, elementary grinding case is provided with the first bearing of matching with crushing pole junction, the fixed crushing leaf that is provided with multiunit evenly distributed on the crushing pole, and crushing leaf is located slope filter screen top. The utility model discloses can retrieve the too big not complete quartz sand granule of smashing of granule, autoloading, regrinding has reduced the cost of artifical screening, can produce the less quartz sand dust of department's particle diameter simultaneously, and the practicality is stronger.
Description
Technical Field
The utility model relates to a material processing technology field on the quartz especially relates to a quartz materials processing professional equipment.
Background
Quartz is a mineral resource with very stable physical and chemical properties, quartz blocks are also called silica and mainly used as raw materials for producing quartz sand, quartz is a mineral composed of silicon dioxide, and pure quartz is colorless and transparent, has various colors due to containing trace pigment ions or finely dispersed inclusions or having color centers and is reduced in transparency. The quartz material has glass luster, fractures are grease luster, and special quartz material processing equipment is often needed in the processing production of quartz.
The existing material processing equipment cannot automatically recover quartz sand particles which are too large and do not meet the size requirement, secondary feeding is performed, manual regular cleaning is needed, labor cost and labor intensity of workers are improved, and on the other hand, quartz sand dust with small particle diameter cannot be processed, so that certain limitation is realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects that the quartz sand increased by the particles in the prior art can not be automatically recovered, secondarily crushed and processed to obtain quartz sand dust with smaller particle diameter, and providing a quartz material processing special equipment.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a quartz material processing special device comprises a primary grinding box and a feeding pipe, wherein the feeding pipe is fixedly arranged on the upper side wall of the primary grinding box, the feeding pipe is communicated with the inner cavity of the primary filtering box, an inclined filtering net is fixedly arranged in the primary filtering box, a first motor is fixedly arranged on the upper end of the side wall of the primary grinding box, a grinding rod is fixedly connected with an output shaft of the first motor, the grinding rod inwards penetrates through the side wall of one side of the primary grinding box and is rotatably connected with the inner wall of the other side of the primary grinding box, a matched first bearing is arranged at the joint of the primary grinding box and the grinding rod, a plurality of groups of uniformly distributed grinding leaves are fixedly arranged on the grinding rod and are positioned above the inclined filtering net, a discharging port is fixedly arranged on the side wall of the lower side of the primary grinding box, a fine grinding box is arranged below the primary grinding box, and the fine grinding box is communicated with the discharging port through a discharging, the fine grinding box is characterized in that a third motor is fixedly arranged on the lower side wall of the fine grinding box, a rotating rod is fixedly connected with an output shaft of the third motor, the rotating rod upwards penetrates through the lower side wall of the fine grinding box, a matched third bearing is arranged at the joint of the lower side wall of the fine grinding box and the rotating rod, a turntable and a plurality of groups of grinding discs which are uniformly distributed are fixedly sleeved on the rotating rod, the plurality of groups of grinding discs are all positioned above the turntable, grinding teeth matched with the grinding discs are arranged on the inner side wall of the fine grinding box, ventilating interlayers are fixedly arranged in the peripheral side walls of the fine grinding box, the ventilating interlayers are communicated with the inner cavity of the fine grinding box through a centrifugal port, the centrifugal port is matched with the turntable, an air blower is fixedly arranged on the lower side wall of the fine grinding box, the air blower is communicated with the ventilating interlayers, and an annular opening communicated with the ventilating interlayers is fixedly, and a barrel support is fixedly arranged above the inner cavity of the fine grinding box, and a material receiving barrel is arranged in the barrel support.
Preferably, a recycling cylinder is fixedly arranged on the side wall of the primary grinding box far away from the first motor, a separation port matched with the inclined filter screen is fixedly arranged on the side wall of the primary grinding box far away from the first motor, the separation port is communicated with the recycling cylinder, a second motor is fixedly arranged on the side wall of the primary grinding box, a feeding screw is rotatably connected to the center of the lower side wall of the recycling cylinder, the lower end of the feeding screw is fixedly connected with an output shaft of the second motor, the upper end of the feeding screw upwards penetrates through the lower side wall of the recycling cylinder and is rotatably connected with the inner wall of the upper side of the recycling cylinder, a first recycling port is fixedly arranged on the upper end of the side wall of the recycling cylinder, a second recycling port is fixedly arranged on the side wall of the feeding pipe, the first recycling port is higher than the second recycling port, and the first recycling port is communicated.
Preferably, the inner wall of the lower side of the primary grinding box is fixedly provided with an inclined angle matched with the discharge port.
Preferably, the inlet pipe upper end opening part is fixed and is provided with the feed hopper of matching, feed hopper adopts manganese steel preparation to form.
Preferably, an inclined pipe communicated with the discharge pipe is fixedly arranged in the fine grinding box, and an opening at one end, far away from the discharge pipe, of the inclined pipe corresponds to the position of the circle center of the grinding disc.
Compared with the prior art, the beneficial effects of the utility model are that: through the cooperation use of slope filter screen and recovery unit, can retrieve the too big not complete quartzy sand granule of smashing of granule, autoloading, the regrinding, the cost of artifical screening has been reduced, staff's intensity of labour has been reduced, the practicality is stronger, the pipe discharge end sets up directly over the abrasive disc centre of a circle, can let the quartzy sand granule that unloads through the pipe that inclines evenly fall on the abrasive disc top, thereby receive the even grinding of abrasive disc, avoid quartzy sand granule to pile up in one, lead to grinding inadequately, still influence the result of use of abrasive disc, the layering setting of multilayer abrasive disc ensures that the quartzy sand granule that gets into the fine grinding incasement grinds fully, reach the dimensional requirement, can produce the less quartzy sand dust of granule diameter, the practicality is stronger.
Drawings
Fig. 1 is a schematic structural view of a special apparatus for processing quartz material according to the present invention;
fig. 2 is an enlarged view of a point a in fig. 1.
In the figure: the grinding machine comprises a primary grinding box 1, a feeding pipe 2, an inclined filter screen 3, a first motor 4, a second motor 5, a recovery cylinder 6, a feeding screw 7, a recovery pipe 8, a fine grinding box 9, a discharge pipe 10, a third motor 11, a rotating rod 12, a grinding disc 13, a blower 14, a vent pipe 15, a vent interlayer 16, a material receiving barrel 17 and a rotating disc 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, a quartz material processing special device comprises a primary grinding box 1 and a feeding pipe 2, wherein a matched feeding funnel is fixedly arranged at an opening at the upper end of the feeding pipe 2, the feeding funnel is made of manganese steel, the feeding funnel is arranged to avoid raw material scattering when quartz sand raw materials are added into the feeding pipe 2, unnecessary waste is reduced, the quartz sand raw materials are granular and collide with the inner wall of the feeding funnel back and forth in the feeding process, the feeding funnel made of manganese steel has strong wear resistance and collision resistance, the service life of the feeding funnel is improved in a phase change manner, the feeding pipe 2 is fixedly arranged on the upper side wall of the primary grinding box 1, the feeding pipe 2 is communicated with the inner cavity of the primary filtering box, an inclined filtering net 3 is fixedly arranged in the primary filtering box, and a first motor 4 is fixedly arranged at the upper end of the side wall of the primary grinding box 1, a crushing rod is fixedly connected to an output shaft of the first motor, the crushing rod penetrates through the side wall of one side of the primary grinding box 1 inwards to be rotatably connected with the inner wall of the other side of the primary grinding box 1, a matched first bearing is arranged at the joint of the primary grinding box 1 and the crushing rod, a plurality of groups of crushing leaves which are uniformly distributed are fixedly arranged on the crushing rod, and the crushing leaves are positioned above the inclined filter screen 3;
a recovery cylinder 6 is fixedly arranged on the side wall of the primary grinding box 1 far away from the first motor 4, a separation port matched with the inclined filter screen 3 is fixedly arranged on the side wall of the primary grinding box 1 far away from the first motor 4, the separation port is communicated with the recovery cylinder 6, a second motor 5 is fixedly arranged on the side wall of the primary grinding box 1, a feeding screw 7 is rotatably connected at the center of the lower side wall of the recovery cylinder 6, the lower end of the feeding screw 7 is fixedly connected with an output shaft of the second motor, the upper end of the feeding screw 7 upwards penetrates through the lower side wall of the recovery cylinder 6 to be rotatably connected with the upper side inner wall of the recovery cylinder 6, a first recovery port is fixedly arranged at the upper end of the side wall of the recovery cylinder 6, a second recovery port is fixedly arranged on the side wall of the feeding pipe 2, the first recovery port is higher than the second recovery port, the first recovery port is communicated with the second, the quartz sand particles which are too large and not completely crushed can be recycled, automatic feeding and secondary crushing are realized, the manual screening cost is reduced, the labor intensity of workers is reduced, the practicability is high, the discharge port is fixedly arranged on the side wall of the lower side of the primary grinding box 1, the inclined angle matched with the discharge port is fixedly arranged on the inner wall of the lower side of the primary grinding box 1, the arrangement of the inclined angle is convenient for the crushed quartz sand particles to enter the discharge port and then enter the discharge pipe 10, the discharge speed of the primary grinding box 1 is improved, and the quartz sand particles are prevented from being blocked at the discharge port;
a fine grinding box 9 is arranged below the primary grinding box 1, the fine grinding box 9 is communicated with a discharge port through a discharge pipe 10, a third motor 11 is fixedly arranged on the lower side wall of the fine grinding box 9, a rotating rod 12 is fixedly connected with an output shaft of the third motor, the rotating rod 12 upwards penetrates through the lower side wall of the fine grinding box 9, a matched third bearing is arranged at the joint of the lower side wall of the fine grinding box 9 and the rotating rod 12, a rotating disk 18 and a plurality of groups of uniformly distributed grinding disks 13 are fixedly sleeved on the rotating rod 12, the plurality of groups of grinding disks 13 are all positioned above the rotating disk 18, an inclined pipe communicated with the discharge pipe 10 is fixedly arranged in the fine grinding box 9, an opening at one end of the inclined pipe, far away from the discharge pipe 10, of the inclined pipe corresponds to the position of the circle center of the grinding disk 13, the discharge end of the inclined pipe is arranged right above the circle center of the grinding disk 13, and quartz sand particles discharged through the, thereby receive the even grinding of abrasive disc 13, avoid quartz sand granule to pile up in one, lead to grinding inadequately, still influence abrasive disc 13's result of use, the inside wall of fine grinding case 9 is provided with and grinds the tooth with abrasive disc 13 assorted, fine grinding case 9 is fixed all around the lateral wall internal fixation is provided with the intermediate layer 16 of ventilating, the intermediate layer 16 of ventilating passes through centrifugal orifice intercommunication with fine grinding case 9 inner chamber, centrifugal orifice and 18 matching settings of carousel, the fixed air-blower 14 that is provided with of side wall under the fine grinding case 9, air-blower 14 and ventilate and communicate through breather pipe 15 between the intermediate layer 16, the fixed annular opening that is provided with and ventilates intermediate layer 16 intercommunication in fine grinding case 9 inside wall upper end, and the fixed bucket support that is provided with in fine grinding case 9 inner chamber top, be provided.
In the utility model, the first motor 4 is started, the first motor output shaft drives the crushing rod to rotate, the crushing blade rotates along with the crushing rod, then quartz sand raw material is added into the primary grinding box 1 through the feeding pipe 2, the quartz sand raw material entering the primary grinding box 1 is crushed by the crushing blade, the quartz sand particles with smaller particle diameter pass through the inclined filter screen 3, the quartz sand particles enter the fine grinding box 9 through the discharging pipe 10 and fall on the grinding disc 13, at the moment, the third motor 11 and the air blower 14 are started, the third motor output shaft drives the rotating rod 12 to rotate, the grinding disc 13 fixedly sleeved on the rotating rod 12 and the rotating disc 18 rotate along with the quartz sand particles, the quartz sand particles on the grinding disc 13 gradually move to the edge of the grinding disc 13 under the action of centrifugal force, and after the grinding disc 13 and the grinding teeth arranged on the inner wall of the fine grinding box 9 are ground and crushed, the quartz sand particles fall on the rotating disc 18 under the, the quartz sand dust with smaller diameter falling on the rotary table 18 passes through the centrifugal opening to enter the ventilation interlayer 16 under the action of centrifugal force, moves to the annular opening communicated with the ventilation interlayer 16 to do horizontal throw movement under the action of the air blower 14 and the ventilation pipe 15, the quartz sand dust with smaller particles falls into the material receiving barrel 17 with longer horizontal throw distance, the quartz sand dust with larger particle diameter is closer to the horizontal throw distance and does not fall into the material receiving barrel 17, falls on the grinding disc 13 again to be ground for the second time until the diameter reaches the requirement, when the material receiving barrel 17 is full of the quartz sand dust, the cover plate on the upper side wall of the fine grinding box 9 is opened, the material receiving barrel 17 is taken out, in addition, the quartz sand with larger particles blocked by the inclined filter screen 3 in the primary grinding box 1 passes through the separation opening to enter the recovery barrel 6, enters the recovery pipe 8 and the feeding pipe 2 under the conveying of the feeding screw 7 to enter the primary grinding box 1 again, and (5) carrying out secondary crushing until the diameter of the powder meets the requirement.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The special quartz material processing equipment comprises a primary grinding box (1) and a feeding pipe (2), wherein the feeding pipe (2) is fixedly arranged on the upper side wall of the primary grinding box (1), and the feeding pipe (2) is communicated with the inner cavity of the primary filtering box, and is characterized in that an inclined filtering net (3) is fixedly arranged in the primary filtering box, a first motor (4) is fixedly arranged at the upper end of the side wall of the primary grinding box (1), a grinding rod is fixedly connected with an output shaft of the first motor, the grinding rod penetrates through the side wall of one side of the primary grinding box (1) inwards and is rotatably connected with the inner wall of the other side of the primary grinding box (1), a first bearing matched with the joint of the primary grinding box (1) and the grinding rod is arranged, a plurality of groups of uniformly distributed grinding leaves are fixedly arranged on the grinding rod, and the grinding leaves are positioned above the inclined filtering net (3), a discharge port is fixedly arranged on the lower side wall of the primary grinding box (1), a fine grinding box (9) is arranged below the primary grinding box (1), the fine grinding box (9) is communicated with the discharge port through a discharge pipe (10), a third motor (11) is fixedly arranged on the lower side wall of the fine grinding box (9), a rotating rod (12) is fixedly connected with an output shaft of the third motor, the rotating rod (12) upwards penetrates through the lower side wall of the fine grinding box (9), a third bearing matched with the rotating rod (12) is arranged at the joint of the lower side wall of the fine grinding box (9) and the rotating rod (12), a rotating disk (18) and a plurality of groups of uniformly distributed grinding disks (13) are fixedly sleeved on the rotating rod (12), the plurality of groups of grinding disks (13) are all positioned above the rotating disk (18), and grinding teeth matched with the grinding disks (13) are arranged on the inner side wall of the fine grinding box (9), the fine grinding box is characterized in that an air-permeable interlayer (16) is fixedly arranged in the peripheral side wall of the fine grinding box (9), the air-permeable interlayer (16) is communicated with the inner cavity of the fine grinding box (9) through a centrifugal port, the centrifugal port is matched with the rotary table (18), an air blower (14) is fixedly arranged on the lower side wall of the fine grinding box (9), the air blower (14) is communicated with the air-permeable interlayer (16) through an air pipe (15), an annular opening communicated with the air-permeable interlayer (16) is fixedly arranged at the upper end of the inner side wall of the fine grinding box (9), a barrel support is fixedly arranged above the inner cavity of the fine grinding box (9), and a material receiving barrel (17) is arranged in the barrel support.
2. The special equipment for processing the quartz material according to claim 1, wherein a recovery cylinder (6) is fixedly arranged on a side wall of the primary grinding box (1) far away from the first motor (4), a separation port matched with the inclined filter screen (3) is fixedly arranged on a side wall of the primary grinding box (1) far away from the first motor (4), the separation port is communicated with the recovery cylinder (6), a second motor (5) is fixedly arranged on a side wall of the primary grinding box (1), a feeding screw (7) is rotatably connected to the center of the lower side wall of the recovery cylinder (6), the lower end of the feeding screw (7) is fixedly connected with an output shaft of the second motor, the upper end of the feeding screw (7) upwards penetrates through the lower side wall of the recovery cylinder (6) to be rotatably connected with the inner wall of the upper side of the recovery cylinder (6), and a first recovery port is fixedly arranged at the upper end of the side wall of the recovery cylinder (6), the second recovery opening is fixedly arranged on the side wall of the feeding pipe (2), the first recovery opening is higher than the second recovery opening, and the first recovery opening is communicated with the second recovery opening through a recovery pipe (8).
3. The special equipment for processing the quartz material as claimed in claim 1, wherein the inner wall of the lower side of the primary grinding box (1) is fixedly provided with an inclination angle matched with the discharge port.
4. The special quartz material processing equipment according to claim 1, wherein a matched feeding funnel is fixedly arranged at an opening at the upper end of the feeding pipe (2), and the feeding funnel is made of manganese steel.
5. The special equipment for processing the quartz material as claimed in claim 1, wherein an inclined pipe communicated with the discharge pipe (10) is fixedly arranged in the fine grinding box (9), and an opening at one end of the inclined pipe far away from the discharge pipe (10) corresponds to the position of the circle center of the grinding disc (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808876.3U CN211216904U (en) | 2019-10-25 | 2019-10-25 | Special equipment for processing quartz material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921808876.3U CN211216904U (en) | 2019-10-25 | 2019-10-25 | Special equipment for processing quartz material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211216904U true CN211216904U (en) | 2020-08-11 |
Family
ID=71928753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921808876.3U Expired - Fee Related CN211216904U (en) | 2019-10-25 | 2019-10-25 | Special equipment for processing quartz material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211216904U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028082A (en) * | 2020-08-31 | 2020-12-04 | 江苏康祥实业集团有限公司 | Preparation method of potassium silicate solution based on hydrothermal method |
| CN112495286A (en) * | 2020-12-23 | 2021-03-16 | 许建新 | Industrial slag environment-friendly treatment recycling device |
| CN112588791A (en) * | 2020-12-18 | 2021-04-02 | 北京鼎翰建筑有限公司 | Compression device for treating building solid waste |
| CN112844708A (en) * | 2020-12-24 | 2021-05-28 | 宁接桂 | Raw material cleaning and fine crushing treatment equipment for plastic processing |
| CN117206048A (en) * | 2023-09-20 | 2023-12-12 | 东海硅产(江苏)科技有限公司 | Multistage grinder of quartz sand |
| CN117583067A (en) * | 2023-11-21 | 2024-02-23 | 江苏盐城盐都现代农业产业园发展有限公司 | Agricultural product cereal classified grinding device |
-
2019
- 2019-10-25 CN CN201921808876.3U patent/CN211216904U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112028082A (en) * | 2020-08-31 | 2020-12-04 | 江苏康祥实业集团有限公司 | Preparation method of potassium silicate solution based on hydrothermal method |
| CN112588791A (en) * | 2020-12-18 | 2021-04-02 | 北京鼎翰建筑有限公司 | Compression device for treating building solid waste |
| CN112495286A (en) * | 2020-12-23 | 2021-03-16 | 许建新 | Industrial slag environment-friendly treatment recycling device |
| CN112844708A (en) * | 2020-12-24 | 2021-05-28 | 宁接桂 | Raw material cleaning and fine crushing treatment equipment for plastic processing |
| CN117206048A (en) * | 2023-09-20 | 2023-12-12 | 东海硅产(江苏)科技有限公司 | Multistage grinder of quartz sand |
| CN117583067A (en) * | 2023-11-21 | 2024-02-23 | 江苏盐城盐都现代农业产业园发展有限公司 | Agricultural product cereal classified grinding device |
| CN117583067B (en) * | 2023-11-21 | 2024-06-04 | 江苏盐城盐都现代农业产业园发展有限公司 | Agricultural product cereal classified grinding device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |