CN221132389U - Screening structure of calcium carbonate pulverizer - Google Patents
Screening structure of calcium carbonate pulverizer Download PDFInfo
- Publication number
- CN221132389U CN221132389U CN202323193597.XU CN202323193597U CN221132389U CN 221132389 U CN221132389 U CN 221132389U CN 202323193597 U CN202323193597 U CN 202323193597U CN 221132389 U CN221132389 U CN 221132389U
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- China
- Prior art keywords
- assembly
- fixedly connected
- calcium carbonate
- filter plate
- powder
- 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.)
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 78
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 39
- 238000012216 screening Methods 0.000 title claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 51
- 238000000227 grinding Methods 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims 1
- 238000004513 sizing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model relates to the technical field of calcium carbonate, in particular to a screening structure of a calcium carbonate pulverizer. The device comprises a blanking barrel, wherein the interior of the blanking barrel is movably communicated with a grinding assembly, and the outer wall of one support plate is fixedly connected with a moving assembly; inside fixedly connected with vibrations subassembly of extension board spout, the inside activity intercommunication of vibrations subassembly has the dismouting subassembly, and two dismouting subassemblies wear out and shake fixedly connected with filter plate between the subassembly. According to the utility model, the filter plate is arranged on the vibration assembly through the disassembly and assembly, calcium carbonate is poured from the top of the blanking barrel, the calcium carbonate is rolled into powder through the grinding assembly, so that the calcium carbonate powder falls down to the top of the filter plate, the vibration assembly is driven to shake through the stamping force of the powder on the filter plate, so that the powder on the filter plate is subjected to shaking screening, finer powder is screened into the fine powder box, the brush is driven to move at the top of the filter plate through the moving assembly, and coarser powder on the filter plate is scanned into the coarse powder box.
Description
Technical Field
The utility model relates to the technical field of calcium carbonate, in particular to a screening structure of a calcium carbonate pulverizer.
Background
Calcium carbonate (CaCO 3) is a large number of raw materials used in building materials and industry. Industrial calcium carbonate can be directly processed into stone and fired into quicklime. The quick lime absorbs moisture or adds water to become slaked lime, the main component of which is Ca (OH) 2, which can be called calcium hydroxide, and the slaked lime is prepared into lime slurry, lime paste and the like to be used as coating materials and tile adhesives. Dense-texture calcium carbonate rock (limestone) can also be used directly in building, but the main purpose of limestone is to produce cement. The white stone containing more than 90% of industrial calcium carbonate is crushed, graded and separated by Raymond mill or other high-pressure mill, and the finished product can be used as filler in rubber, plastic, paper making, paint, printing ink and other industries. Is widely used in organic synthesis, metallurgy, glass, asbestos and other production, and is used as a neutralizer for industrial wastewater, a tooth powder, toothpaste and other raw materials for cosmetics.
For calcium carbonate mill sieves, there are many prior art techniques such as:
The utility model discloses a screening device for calcium carbonate production, which comprises a supporting cylinder, wherein the bottom of the arc surface of the supporting cylinder is provided with a bracket at the position close to the front end and the rear end, the inside of the supporting cylinder is provided with a screening cylinder, the two ends of the screening cylinder are rotationally connected with the supporting cylinder, one end of the screening cylinder is connected with a motor, the output end of the motor is spliced with the screening cylinder, the motor is connected with the supporting cylinder through bolts, the surface of the screening cylinder is provided with dense through holes, one end of the screening cylinder, which is not connected with the motor, is provided with an opening, the bottom end of the arc surface of the supporting cylinder is provided with a discharge hole, and the position, which is aligned with the discharge hole, of the inner side of the bracket is provided with a receiving box.
Calcium carbonate is in the in-process of production and processing according to production standard needs to sieve the calcium carbonate granule, satisfies the screening processing of granule requirement in the calcium carbonate to carry out further processing with large granule calcium carbonate and handle, make large granule calcium carbonate can satisfy all kinds of industrial production standards, and the screen cloth on the current most screening plant does not possess vibration subassembly, when filtering the sieve, leads to great particulate matter to block up the screen cloth mesh easily, influences the filter effect, thereby leads to the screening inefficiency of whole equipment.
In view of this, the present utility model provides a screening structure for a calcium carbonate mill.
Disclosure of utility model
The utility model provides a screening structure of a calcium carbonate pulverizer, which comprises a blanking barrel, wherein two support plates are fixedly connected to the bottom of the blanking barrel, a fine powder box is fixedly connected between the bottoms of the two support plates, a grinding assembly is movably communicated inside the blanking barrel, a moving assembly is fixedly connected to the outer wall of one support plate, and a brush is fixedly connected to the bottom of the moving assembly;
The inside fixedly connected with vibrations subassembly of extension board spout, the inside activity intercommunication of vibrations subassembly has the dismouting subassembly, two fixedly connected with filter plate between the dismouting subassembly wears out the vibrations subassembly, two fixedly connected with coarse powder case near the outer wall department of filter plate between the extension board.
As a further improvement of the technical scheme, the grinding assembly comprises two press rolls, the two press rolls are movably communicated inside the blanking barrel, the rotating shafts of the press rolls penetrate through belt pulleys fixedly communicated with the outer wall of the blanking barrel, belts are movably communicated between the belt pulleys, one of the press rolls penetrates through the end part of the blanking barrel and is fixedly connected with a motor output shaft, and the grinding assembly is used for grinding calcium carbonate into powder.
As a further improvement of the technical scheme, the moving assembly comprises a screw, the screw is fixedly connected to the end part of the motor output shaft on the outer wall of one of the support plates, the outer wall of the screw is movably communicated with a support rod, the bottom of the support rod is fixedly connected with a brush, and the moving assembly is used for driving the brush to move at the top of the filter plate.
As the further improvement of this technical scheme, dismouting subassembly includes protruding pole, protruding pole fixed connection is in filter plate both sides outer wall department, protruding pole outer wall fixedly connected with bolt, the activity intercommunication has vibration subassembly between the outer wall of bolt and protruding pole, the dismouting subassembly is used for making things convenient for the filter plate to install on vibration subassembly and dismantle.
As the further improvement of this technical scheme, vibrations subassembly includes the flange, flange activity intercommunication is in the outer wall department of bolt and protruding pole, flange swing joint is inside the extension board spout, all fixedly connected with elastic component between the inside top and the bottom of extension board top and extension board spout, vibrations subassembly is used for driving the filter plate and rocks from top to bottom between two extension boards.
Compared with the prior art, the utility model has the beneficial effects that:
Install the filter plate on vibration subassembly through the dismouting subassembly, pour into through the calcium carbonate from the unloading bucket top, roll into powder through grinding component to calcium carbonate, make calcium carbonate powder drop to the filter plate top downwards, drive vibration subassembly through the stamping force of powder to the filter plate and rock to rock the screening to the powder on the filter plate, sieve finer powder into the fine powder incasement portion, drive the brush through the moving component and remove at the filter plate top, sweep coarser powder on the filter plate into the coarse powder incasement portion.
Drawings
The utility model is described in more detail below, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is a schematic view of a polishing structure according to the present utility model;
FIG. 4 is a schematic view of a sweeping structure according to the present utility model;
FIG. 5 is a schematic view of the structure of FIG. 2A according to the present utility model;
fig. 6 is a schematic diagram of the structure of fig. 4B according to the present utility model.
The meaning of each reference sign in the figure is: 1. discharging barrels; 11. a support plate; 12. a fine powder box; 120. a coarse powder box; 13. a grinding assembly; 130. a press roller; 131. a belt pulley; 132. a belt; 14. a moving assembly; 140. a support rod; 141. a screw; 15. a brush; 2. a filter plate; 21. disassembling and assembling the assembly; 210. a protruding rod; 211. a bolt; 22. a vibration assembly; 220. a convex plate; 221. an elastic member.
Detailed Description
As shown in fig. 1-6, the device comprises a blanking barrel 1, wherein two support plates 11 are fixedly connected to the bottom of the blanking barrel 1, a fine powder box 12 is fixedly connected between the bottoms of the two support plates 11, a grinding assembly 13 is movably communicated inside the blanking barrel 1, a moving assembly 14 is fixedly connected to the outer wall of one support plate 11, and a brush 15 is fixedly connected to the bottom of the moving assembly 14;
The inside of the chute of the support plate 11 is fixedly connected with a vibration assembly 22, the inside of the vibration assembly 22 is movably communicated with a disassembly and assembly 21, a filter plate 2 is fixedly connected between the two disassembly and assembly assemblies 21 penetrating out of the vibration assembly 22, and a coarse powder box 120 is fixedly connected between the two support plates 11 and close to the outer wall of the filter plate 2;
Firstly, a specific structure of a grinding assembly 13 is disclosed, the grinding assembly 13 comprises two press rolls 130, the two press rolls 130 are movably communicated inside a blanking barrel 1, rotating shafts of the two press rolls 130 penetrate through the outer wall of the blanking barrel 1 and are fixedly communicated with belt pulleys 131, a belt 132 is movably communicated between the two belt pulleys 131, one of the press rolls 130 penetrates through the end part of the blanking barrel 1 and is fixedly connected with a motor output shaft, the grinding assembly 13 is used for grinding calcium carbonate into powder, the motor output shaft drives one of the press rolls 130 to rotate, so that the belt pulleys 131 on the rotating shafts of the press rolls 130 rotate, the belt pulleys 131 are driven to rotate by the belt pulleys 131, the two belt pulleys 131 and the rotating shafts of the two press rolls 130 are driven to rotate simultaneously by the belt 132, and the calcium carbonate passing through the press rolls 130 is ground into powder;
According to the above disclosure for the specific structure of the moving assembly 14, the moving assembly 14 includes a screw 141, the screw 141 is fixedly connected to the end of the motor output shaft on the outer wall of one of the support plates 11, the outer wall of the screw 141 is movably connected with a support rod 140, the bottom of the support rod 140 is fixedly connected with a brush 15, the moving assembly 14 is used for driving the brush 15 to move on the top of the filter plate 2, the screw 141 is driven to rotate by the motor output shaft, the support rod 140 is driven to move on the screw 141 by the rotation of the screw 141, and the brush 15 is driven to move on the top of the filter plate 2 by the support rod 140, so that the brush 15 sweeps the powder on the filter plate 2 into the coarse powder box 120;
according to the above disclosure of the specific structure of the dismounting assembly 21, the dismounting assembly 21 includes the protruding rod 210, the protruding rod 210 is fixedly connected to the outer walls of two sides of the filter plate 2, the outer wall of the protruding rod 210 is fixedly connected with the bolt 211, the vibration assembly 22 is movably connected between the bolt 211 and the outer wall of the protruding rod 210, the dismounting assembly 21 is used for facilitating the installation and the disassembly of the filter plate 2 on the vibration assembly 22, the protruding rod 210 is driven to rotate by rotating the filter plate 2, the bolt 211 is driven to screw into the protruding plate 220 by rotating the protruding rod 210, thereby fixing the protruding rod 210 in the protruding plate 220, and facilitating the installation of the filter plate 2 between the two protruding plates 220;
According to the above disclosure for the concrete structure of the vibration assembly 22, the vibration assembly 22 includes the convex plate 220, the convex plate 220 is movably connected to the outer wall of the bolt 211 and the convex rod 210, the convex plate 220 is movably connected to the inside of the chute of the support plate 11, the elastic members 221 are fixedly connected between the top and the bottom of the convex plate 220 and the top and the bottom of the inside of the chute of the support plate 11, the vibration assembly 22 is used for driving the filter plate 2 to shake up and down between the two support plates 11, the filter plate 2 is pressed down by the gravity of the powder, so that the elastic members 221 at the bottom of the convex plate 220 contract down, the filter plate 2 is rebound by the elastic members 221 at the bottom of the convex plate 220, the instantaneous impact force drives the elastic members 221 at the top of the convex plate 220 to contract, and the elastic members 221 at the top of the convex plate 220 rebound again, so as to drive the convex plate 220 to reciprocate inside the chute of the support plate 11, thereby continuously shake up and down, and the powder is screened.
The improvement of the embodiment is that: the filter plate 2 is rotated to drive the convex rods 210 to rotate, the bolts 211 are driven to be screwed into the convex plates 220 through the rotation of the convex rods 210, so that the convex rods 210 are fixed in the convex plates 220, the filter plate 2 is conveniently arranged between the two convex plates 220, calcium carbonate is poured in from the top of the blanking barrel 1, the motor output shaft drives one of the press rolls 130 to rotate, so that the belt pulley 131 on the rotating shaft of the press roll 130 is rotated, the belt 132 is driven to rotate through the rotation of the belt pulley 131, the two belt pulleys 131 and the rotating shaft of the two press rolls 130 are driven to rotate simultaneously through the belt 132, calcium carbonate passing through the press rolls 130 is crushed into powder, the filter plate 2 is pressed downwards through the gravity of the powder, the elastic piece 221 at the bottom of the convex plates 220 is contracted downwards, the elastic piece 221 at the bottom of the convex plates 220 is elastically contracted, the impact force at one moment drives the top of the convex plates 220 to be elastically contracted, the elastic piece 221 at the top of the convex plates 220 is elastically rebounded again, the convex plates 220 are driven to reciprocate in the sliding grooves of the support plate 11, so that the filter plate 2 is continuously rocked up and down, the powder is filtered, the motor output shaft drives the two belt pulleys 131 and the rotating shafts of the two press rolls 130 to rotate simultaneously, so that the powder is driven to rotate simultaneously, the powder is driven to move up and down through the screw rod 141, and the brush rod 140 is driven to move through the screw rod 141, and the brush 15 to move through the screw rod 140, and the rotation 15 is driven to move through the screw rod to move through the rotation 15, and the top rod 2, and the rotation is driven to move up and the rod 15.
To sum up, the working principle of the scheme is as follows:
The filter plate 2 is arranged on the vibration component 22 through the disassembly and assembly component 21, wherein the disassembly and assembly component 21 drives the convex rods 210 to rotate through rotating the filter plate 2, the convex rods 210 are fixed in the convex plates 220 through rotating the convex rods 210 to drive the bolts 211 to screw into the convex plates 220, the filter plate 2 is conveniently arranged between the two convex plates 220, calcium carbonate is poured from the top of the blanking barrel 1 and is crushed into powder through the grinding component 13, so that the calcium carbonate powder falls down to the top of the filter plate 2, the grinding component 13 drives one of the compression rollers 130 to rotate through the output shaft of a motor, so that the belt pulley 131 on the rotating shaft of the compression roller 130 rotates, the belt 132 is driven to rotate through the rotation of the belt pulley 131, the two belt pulleys 131 and the rotating shafts of the two compression rollers 130 are simultaneously driven to rotate through the belt 132, the calcium carbonate passing through the compression rollers 130 is crushed into powder, the vibration component 22 is driven to shake by the stamping force of powder on the filter plate 2, so that the powder on the filter plate 2 is subjected to shaking screening, finer powder is screened into the fine powder box 12, the vibration component 22 presses the filter plate 2 downwards by the gravity of the powder, the elastic piece 221 at the bottom of the convex plate 220 is enabled to shrink downwards, the filter plate 2 is driven to rebound upwards by the elastic piece 221 at the bottom of the convex plate 220, the elastic piece 221 at the top of the convex plate 220 is enabled to shrink by the instantaneous impact force, the convex plate 220 is driven to reciprocate in the chute of the support plate 11 by rebound again by the elastic piece 221 at the top of the convex plate 220, the filter plate 2 is enabled to shake up and down continuously, the powder is screened, the brush 15 is driven to move at the top of the filter plate 2 by the moving component 14, coarser powder on the filter plate 2 is swept into the coarse powder box 120, the moving component 14 drives the screw 141 to rotate by the motor output shaft, the rotation of the screw 141 drives the rod 140 to move on the screw 141, and the rod 140 drives the brush 15 to move on top of the filter plate 2, so that the brush 15 sweeps the powder on the filter plate 2 into the coarse powder box 120.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a calcium carbonate milling machine screening structure, includes blanking barrel (1), its characterized in that: two support plates (11) are fixedly connected to the bottom of the blanking barrel (1), a fine powder box (12) is fixedly connected between the bottoms of the two support plates (11), a grinding assembly (13) is movably communicated inside the blanking barrel (1), a moving assembly (14) is fixedly connected to the outer wall of one support plate (11), and a brush (15) is fixedly connected to the bottom of the moving assembly (14);
The novel filter is characterized in that vibration components (22) are fixedly connected inside the sliding grooves of the support plates (11), disassembly and assembly components (21) are movably communicated inside the vibration components (22), filter plates (2) are fixedly connected between the disassembly and assembly components (21) penetrating out of the vibration components (22), and coarse powder boxes (120) are fixedly connected between the support plates (11) and close to the outer walls of the filter plates (2).
2. The calcium carbonate mill screening structure according to claim 1, wherein: the grinding assembly (13) comprises two pressing rollers (130), the two pressing rollers (130) are movably communicated inside the blanking barrel (1), the two pressing rollers (130) are fixedly communicated with belt pulleys (131) through the rotating shaft of the outer wall of the blanking barrel (1), the two belt pulleys (131) are movably communicated with a belt (132), one end part of the pressing rollers (130) penetrating out of the blanking barrel (1) is fixedly connected with a motor output shaft, and the grinding assembly (13) is used for grinding calcium carbonate into powder.
3. The calcium carbonate mill screening structure according to claim 1, wherein: the movable assembly (14) comprises a screw rod (141), the screw rod (141) is fixedly connected to the end part of the motor output shaft on the outer wall of one support plate (11), a supporting rod (140) is movably communicated with the outer wall of the screw rod (141), a brush (15) is fixedly connected to the bottom of the supporting rod (140), and the movable assembly (14) is used for driving the brush (15) to move on the top of the filter plate (2).
4. The calcium carbonate mill screening structure according to claim 1, wherein: the assembly and disassembly assembly (21) comprises a protruding rod (210), the protruding rod (210) is fixedly connected to the outer walls of two sides of the filter plate (2), a bolt (211) is fixedly connected to the outer wall of the protruding rod (210), a vibration assembly (22) is movably communicated between the bolt (211) and the outer wall of the protruding rod (210), and the assembly and disassembly assembly (21) is used for facilitating the installation and disassembly of the filter plate (2) on the vibration assembly (22).
5. The calcium carbonate mill sizing structure of claim 4, wherein: the vibration assembly (22) comprises a convex plate (220), the convex plate (220) is movably communicated with the outer wall of the bolt (211) and the convex rod (210), the convex plate (220) is movably connected inside the sliding groove of the support plate (11), elastic pieces (221) are fixedly connected between the top and the bottom of the convex plate (220) and between the top and the bottom of the sliding groove of the support plate (11), and the vibration assembly (22) is used for driving the filter plate (2) to shake up and down between the two support plates (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323193597.XU CN221132389U (en) | 2023-11-22 | 2023-11-22 | Screening structure of calcium carbonate pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323193597.XU CN221132389U (en) | 2023-11-22 | 2023-11-22 | Screening structure of calcium carbonate pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221132389U true CN221132389U (en) | 2024-06-14 |
Family
ID=91424347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323193597.XU Active CN221132389U (en) | 2023-11-22 | 2023-11-22 | Screening structure of calcium carbonate pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221132389U (en) |
-
2023
- 2023-11-22 CN CN202323193597.XU patent/CN221132389U/en active Active
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