CN219631406U - Dry powder raw material grinding equipment - Google Patents
Dry powder raw material grinding equipment Download PDFInfo
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- CN219631406U CN219631406U CN202320749535.3U CN202320749535U CN219631406U CN 219631406 U CN219631406 U CN 219631406U CN 202320749535 U CN202320749535 U CN 202320749535U CN 219631406 U CN219631406 U CN 219631406U
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- dry powder
- grinding box
- sieve plate
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- 238000000227 grinding Methods 0.000 title claims abstract description 134
- 239000000843 powder Substances 0.000 title claims abstract description 24
- 239000002994 raw material Substances 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 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
- 239000013618 particulate matter Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to the technical field of dry powder extinguishing agent processing equipment and discloses dry powder raw material grinding equipment, which comprises a platform plate, wherein a grinding box is arranged on the upper side of the platform plate, a material receiving box is fixedly arranged on the lower side of the platform plate, a through groove is formed in the middle of the platform plate in a penetrating manner, the inner diameter of the through groove is smaller than that of the grinding box, and the grinding box is communicated with the material receiving box through the through groove. According to the utility model, the grinding mechanism is arranged, the second driving motor drives the grinding wheel to grind the materials on the sieve plate body, the threaded rods in the driving assembly are respectively arranged at the front wall and the rear wall in the grinding box, the materials are not dropped below the crushing mechanism, the trouble that the materials fall onto the threaded rods and are not cleaned well is avoided, the sieve plate replacing mechanism is arranged, the sieve plate bodies with different sieve pore sizes are convenient to replace, the installation is convenient and quick, the operation is simple, and the production of powder particles with different diameters is facilitated.
Description
Technical Field
The utility model relates to the technical field of dry powder extinguishing agent processing equipment, in particular to dry powder raw material grinding equipment.
Background
The types of the fire extinguishing agents are more, wherein the dry powder fire extinguishing agents have the advantages of higher fire extinguishing efficiency, less harm to the environment, lower toxicity, easy storage, low price and the like, and can be widely applied aiming at extinguishing various types of fires, and in order to improve the use effect of the dry powder fire extinguishing agents in the production of the dry powder fire extinguishing agents, a grinder is required to grind the raw materials of the dry powder fire extinguishing agents into powdery materials.
In the current chinese patent document of application number CN202022158974.6, a multistage reducing mechanism of material for superfine dry powder extinguishing agent production usefulness is described, the device can drive the pivot through first motor and rotate, make the grinding wheel rotate, break the material in the gap of grinding wheel and crushing case, cutting knife and cutting groove can further cut the material, and can strike off the inside material of cutting groove, the flitch can concentrate the crushing flow of throwing into next step with the material after the crushing of first step, the second motor can drive the lead screw rotation, thereby make the connecting block control the removal, make the grinding wheel of connecting block bottom roll back and forth the grinding groove, its disadvantage is that, the lead screw in the subassembly of drive grinding wheel is in under the broken module mouth, the material after the accumulation is more easily on the lead screw can't clear up, the material of smashing simultaneously gets into in the screw thread gap of lead screw and connecting block easily, influence the normal movement of connecting block, still have not set up the swift device of changing the screening board of different sizes of installation in this equipment, the operation condition that causes the change is more convenient for the operation personnel who causes the installation condition to appear.
Disclosure of Invention
(one) solving the technical problems
The utility model aims to provide dry powder raw material grinding equipment for solving the problems in the background art.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dry powder raw materials grinding equipment, includes the platform board, the upside of platform board is provided with the grinding case, the downside fixed mounting of platform board connects the workbin, the middle part of platform board runs through and has seted up the groove of wearing, just wear the internal diameter in groove and be less than the internal diameter of grinding the case, wear between case and the workbin through wearing the groove intercommunication, the top fixed mounting of grinding the case has the feeding case, the upper end inside of grinding the case is provided with grinding mechanism, the lower extreme inside of grinding the case is provided with grinding mechanism, grinding mechanism's below is provided with sieve replacement mechanism, two supporting legs are fixedly installed to the bottom both sides of platform board;
the grinding mechanism comprises two motors, two rotating shafts and two grinding wheels, wherein the grinding wheels are fixedly installed on the outer sides of the rotating shafts, one sides of the grinding wheels are close to each other, the front ends and the rear ends of the rotating shafts are respectively and rotatably installed on the inner wall of the grinding box through bearings, the motors are fixedly installed on the outer ends of the front sides of the grinding box, and the output shafts of the motors pass through the grinding box and are respectively and fixedly connected with the two rotating shafts.
Through the technical scheme, the two motors drive the two rotating shafts to rotate, so that the two grinding wheels are driven to rotate relatively, and materials falling from the feeding box are fully crushed.
Preferably, a drawer is inserted into the front side of the material receiving box, and a handle is fixedly arranged on the front side surface of the drawer.
Through the technical scheme, the drawer is pulled out by holding the handle, so that the materials processed in the grinding box can be conveniently taken out for further processing and use.
Preferably, the grinding mechanism comprises two motor boxes, two motors II and two threaded rods, wherein the two threaded rods are respectively and rotatably installed on the front and rear positions of the lower side of the inside of the grinding box through bearings, the two motor boxes are respectively and fixedly installed at the left and right ends of the outside of the grinding box, the two motors II are respectively and fixedly installed in the two motor boxes, and the output shafts of the two motors II respectively penetrate through the grinding box and are fixedly connected with the two threaded rods.
Through above-mentioned technical scheme, through driving two motor two same frequency counter-rotating, drive two threaded rods synchronous corotation.
Preferably, the grinding mechanism further comprises two thread sleeves, a roller and a grinding wheel, wherein the two thread sleeves are respectively in threaded connection with the outer sides of the two threaded rods, the two thread sleeves are fixedly connected with the roller on one side relatively close to the thread sleeves, and the grinding wheel is movably sleeved on the outer side of the roller.
Through above-mentioned technical scheme, when two threaded rods rotate with cloth, drive two threaded connection's thread bush also horizontal direction with the portion remove, and then drive the roller bearing and carry out horizontal side-to-side movement, the bottom contact sieve plate body of grinding wheel rolls on the sieve plate body, grinds the material.
Preferably, the sieve plate replacing mechanism comprises two supporting plates and two electric telescopic rods, wherein the two supporting plates are symmetrically and fixedly installed on the left side and the right side of the grinding box respectively, the two electric telescopic rods are symmetrically and fixedly installed on the left side and the right side of the platform plate respectively, and the movable ends of the two electric telescopic rods are fixedly installed on the two supporting plates respectively.
Through above-mentioned technical scheme, through starting two electric telescopic handle, promote two backup pads upwards, with grinding the subassembly upper table of case and connection, grind the case and break away from the platform board, come to the top position of platform board, conveniently change the sieve plate body of downside.
Preferably, the sieve plate replacing mechanism further comprises a sieve plate body and two positioning plugboards, wherein the two positioning plugboards are fixedly arranged on the left side and the right side of the bottom of the sieve plate body, the upper side of the sieve plate body is clung to the grinding wheels, and a plurality of sieve holes are formed in the sieve plate body.
Through above-mentioned technical scheme, the grinding wheel is cooperated to the sieve plate body and rolls the grinding of material, extrudes the material receiving incasement through the sieve mesh, forms the particulate matter that has certain size.
Preferably, the inner side of the bottom of the grinding box is provided with a placement groove, the screen plate body is arranged in the placement groove, the platform plate is provided with two positioning grooves, and the two positioning plugboards are respectively inserted into the two positioning grooves.
Through above-mentioned technical scheme, the standing groove is used for placing the sieve plate body in the inside of receiving the workbin, does not interfere the rising of receiving the workbin and moves down, and the design of location picture peg and standing groove can aim at the position that the sieve plate body will be placed fast, installs.
Compared with the prior art, the utility model provides dry powder raw material grinding equipment, which comprises the following components
The beneficial effects are that:
1. according to the utility model, by arranging the grinding mechanism, the two motors are started to rotate in the same frequency and opposite directions, the two threaded rods are driven to synchronously rotate in the same direction, the threaded sleeves in threaded connection move in the same direction horizontally, the rolling shafts are driven to horizontally move left and right, the bottoms of the grinding wheels are contacted with the screen plate body, the screen plate body rolls, materials are ground, the threaded rods driving the grinding wheels to work are respectively arranged at the front wall and the rear wall in the grinding box, the materials are not dropped below the crushing mechanism, and the trouble that the materials fall onto the threaded rods and are not cleaned easily is avoided;
2. according to the utility model, the screen plate replacing mechanism is arranged, the two electric telescopic rods are started to push the two supporting plates upwards, the grinding box and the components connected with the grinding box are arranged on the platform, the grinding box is separated from the platform plate and arrives at the position above the platform plate, the selected screen plate body is placed on the platform plate, the two positioning plugboards on the screen plate body are inserted into the two positioning grooves formed in the platform plate, so that the installation of the screen plate body is completed rapidly, the two electric telescopic rods are restarted to place the grinding box back to the original position, the screen plate body is left in the positioning grooves and contacted with the bottoms of the grinding wheels to cooperate with grinding work, and the device is convenient for replacing the screen plate bodies with different screen mesh sizes, convenient and quick to install, simple to operate and beneficial to producing powder particles with different diameters.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional structure of the present utility model;
FIG. 3 is a schematic diagram of a cross-sectional structure of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
FIG. 5 is an enlarged schematic view of the structure of FIG. 2B according to the present utility model;
fig. 6 is an enlarged view of the structure of fig. 3 at C according to the present utility model.
In the figure: 1. a platform plate; 2. a grinding box; 3. a material receiving box; 4. penetrating a groove; 5. a feed box; 6. a grinding mechanism; 61. a first motor; 62. a rotating shaft; 63. a grinding wheel; 7. a grinding mechanism; 71. a motor box; 72. a second motor; 73. a threaded rod; 74. a thread sleeve; 75. a roller; 76. a grinding wheel; 8. a sieve plate replacing mechanism; 81. a support plate; 82. an electric telescopic rod; 83. a screen plate body; 84. positioning the plugboard; 9. support legs; 10. a drawer; 11. a handle; 12. a placement groove; 13. a positioning groove; 14. and (5) screening holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Embodiment one:
as shown in fig. 1-2, the dry powder raw material grinding equipment provided by the utility model comprises a platform plate 1, wherein a grinding box 2 is arranged on the upper side of the platform plate 1, a material receiving box 3 is fixedly arranged on the lower side of the platform plate 1, a through groove 4 is formed in the middle of the platform plate 1 in a penetrating manner, the inner diameter of the through groove 4 is smaller than that of the grinding box 2, the grinding box 2 and the material receiving box 3 are communicated through the through groove 4, a feeding box 5 is fixedly arranged at the top of the grinding box 2, a grinding mechanism 6 is arranged in the upper end of the grinding box 2, a grinding mechanism 7 is arranged in the lower end of the grinding box 2, a sieve plate replacing mechanism 8 is arranged below the grinding mechanism 7, and two supporting legs 9 are fixedly arranged on two sides of the bottom of the platform plate 1;
the grinding mechanism 6 comprises two motors 61, two rotating shafts 62 and two grinding wheels 63, wherein the grinding wheels 63 are fixedly arranged on the outer sides of the two rotating shafts 62, one sides of the two grinding wheels 63 are close to each other, the front ends and the rear ends of the two rotating shafts 62 are respectively and rotatably arranged on the inner wall of the grinding box 2 through bearings, the two motors 61 are fixedly arranged on the outer ends of the front sides of the grinding box 2, and the output shafts of the two motors 61 penetrate through the grinding box 2 and are respectively and fixedly connected with the two rotating shafts 62. The two motors 61 drive the two rotating shafts 62 to rotate so as to drive the two grinding wheels 63 to rotate relatively, and the materials falling from the feeding box 5 are fully crushed.
Specifically, a drawer 10 is inserted into the front side of the material receiving box 3, and a handle 11 is fixedly installed on the front side surface of the drawer 10. The grinding box has the advantages that the drawer 10 is pulled out by holding the handle 11, so that the materials processed in the grinding box 2 can be conveniently taken out for further processing and use.
Embodiment two:
as shown in fig. 2-4 and 6, as an improvement over the previous embodiment. Specifically, the grinding mechanism 7 includes two motor boxes 71, two motors 72 and two threaded rods 73, the two threaded rods 73 are respectively rotatably mounted on front and rear positions of the lower side of the interior of the grinding box 2 through bearings, the two motor boxes 71 are respectively fixedly mounted at left and right ends of the outer side of the grinding box 2, the two motors 72 are respectively fixedly mounted in the two motor boxes 71, and output shafts of the two motors 72 respectively penetrate through the grinding box 2 and are fixedly connected with the two threaded rods 73. The advantage is that by driving the two motors 72 to rotate in the same frequency and opposite direction, the two threaded rods 73 are driven to rotate in the same direction synchronously.
Specifically, the grinding mechanism 7 further includes two threaded sleeves 74, a roller 75 and a grinding wheel 76, the two threaded sleeves 74 are respectively in threaded connection with the outer sides of the two threaded rods 73, one side, relatively close to the two threaded sleeves 74, of the two threaded sleeves is fixedly connected with the roller 75, and the grinding wheel 76 is movably sleeved on the outer side of the roller 75. The advantage is that when two threaded rods 73 rotate with cloth, the threaded sleeves 74 driving two threaded connections also move in the same part in the horizontal direction, and then the roller 75 is driven to move horizontally left and right, the bottom of the grinding wheel 76 contacts the screen plate body 83, rolls on the screen plate body 83, and grinds materials.
Embodiment III:
as shown in fig. 2 and 5, as an improvement over the previous embodiment. Specifically, the screen plate replacing mechanism 8 includes two support plates 81 and two electric telescopic rods 82, the two support plates 81 are respectively and symmetrically and fixedly mounted on the left and right sides of the grinding box 2, the two electric telescopic rods 82 are respectively and symmetrically and fixedly mounted on the left and right sides of the platform plate 1, and movable ends of the two electric telescopic rods 82 are respectively and fixedly mounted on the two support plates 81. The advantage is, through starting two electric telescopic handle 82, promotes two backup pads 81 upwards, goes up grinding case 2 and the subassembly of connecting thereof, and grinding case 2 breaks away from platform board 1, comes to the top position of platform board 1, conveniently changes the screen plate body 83 of downside.
Specifically, the screen plate replacing mechanism 8 further includes a screen plate body 83 and two positioning insertion plates 84, the two positioning insertion plates 84 are fixedly mounted on the left and right sides of the bottom of the screen plate body 83, the upper side of the screen plate body 83 is tightly attached to the grinding wheel 76, and a plurality of screen holes 14 are formed in the screen plate body 83. The sieve plate body 83 is matched with the grinding wheel 76 to grind the material, and the material is extruded into the material receiving box 3 through the sieve holes 14 to form particles with a certain size.
Specifically, the inner side of the bottom of the grinding box 2 is provided with a placement groove 12, the screen plate body 83 is arranged in the placement groove 12, the platform plate 1 is provided with two positioning grooves 13, and the two positioning plugboards 84 are respectively inserted into the two positioning grooves 13. The advantage is that the setting groove 12 is used for placing the screen plate body 83 in the inside of receiving box 3, does not interfere the rising of receiving box 3 and moves down, and the design of locating picture peg 84 and constant head tank 13 can aim at the position that screen plate body 83 will be placed fast, installs.
When in use, firstly, the screen plate body 83 of the proper screen holes 14 is selected and installed according to the size of the particles to be obtained, the two electric telescopic rods 82 are started, the two supporting plates 81 are pushed upwards, the grinding box 2 and the components connected with the grinding box are arranged on the upper table, the grinding box 2 is separated from the platform plate 1 to the upper position of the platform plate 1, the selected screen plate body 83 is placed on the platform plate 1, the two positioning inserting plates 84 on the screen plate body 83 are inserted into the two positioning grooves 13 formed on the platform plate 1, thereby quickly completing the installation of the screen plate body 83, the two electric telescopic rods 82 are restarted to put the grinding box 2 back to the original position, the screen plate body 83 is left in the positioning grooves 12 and is contacted with the bottom of the grinding wheel 76, raw materials are put in from the feeding box 5, simultaneously, two motors 61 are started, the driving shaft 62 rotates, the two grinding wheels 63 are driven to roll oppositely, raw materials are extruded and crushed, then the raw materials fall onto the sieve plate body 83, then the two motors 72 are started to rotate in the same frequency and opposite directions, the two threaded rods 73 are driven to synchronously rotate in the same direction, the threaded sleeves 74 connected through threads are also horizontally and uniformly moved, the rollers 75 are driven to horizontally move left and right, the bottoms of the grinding wheels 76 are contacted with the sieve plate body 83, the sieve plate body 83 rolls, materials are ground, the ground materials are extruded into the material receiving box 3 through the sieve holes 14, particles with a certain size are formed, after the whole process is finished, the handle 11 is held, the drawer 10 is pulled out outwards, and the materials processed in the grinding box 2 are conveniently taken out for further processing and use.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A dry powder raw material grinding device, comprising a platform plate, characterized in that: the upper side of the platform plate is provided with a grinding box, the lower side of the platform plate is fixedly provided with a material receiving box, the middle part of the platform plate is provided with a through groove in a penetrating way, the inner diameter of the through groove is smaller than that of the grinding box, the grinding box is communicated with the material receiving box through the through groove, the top of the grinding box is fixedly provided with a feeding box, the upper end of the grinding box is internally provided with a grinding mechanism, the lower part of the grinding mechanism is provided with a sieve plate replacing mechanism, and two supporting legs are fixedly arranged on two sides of the bottom of the platform plate;
the grinding mechanism comprises two motors, two rotating shafts and two grinding wheels, wherein the grinding wheels are fixedly installed on the outer sides of the rotating shafts, one sides of the grinding wheels are close to each other, the front ends and the rear ends of the rotating shafts are respectively and rotatably installed on the inner wall of the grinding box through bearings, the motors are fixedly installed on the outer ends of the front sides of the grinding box, and the output shafts of the motors pass through the grinding box and are respectively and fixedly connected with the two rotating shafts.
2. A dry powder feed grinding apparatus as defined in claim 1, wherein: the front side of the material receiving box is inserted and provided with a drawer, and the front side surface of the drawer is fixedly provided with a handle.
3. A dry powder feed grinding apparatus as defined in claim 1, wherein: the grinding mechanism comprises two motor boxes, two motors II and two threaded rods, wherein the two threaded rods are respectively and rotatably installed on the front and rear positions of the lower side of the inside of the grinding box through bearings, the two motor boxes are respectively and fixedly installed at the left and right ends of the outside of the grinding box, the two motors II are respectively and fixedly installed in the two motor boxes, and the output shafts of the two motors II respectively penetrate through the grinding box and are fixedly connected with the two threaded rods.
4. A dry powder source milling apparatus as claimed in claim 3, wherein: the grinding mechanism further comprises two thread sleeves, a rolling shaft and a grinding wheel, wherein the two thread sleeves are respectively in threaded connection with the outer sides of the two threaded rods, the two thread sleeves are fixedly connected with the rolling shaft at one side relatively close to the two thread sleeves, and the grinding wheel is movably sleeved on the outer side of the rolling shaft.
5. A dry powder feed grinding apparatus as defined in claim 1, wherein: the sieve plate replacing mechanism comprises two supporting plates and two electric telescopic rods, wherein the two supporting plates are symmetrically and fixedly installed on the left side and the right side of the grinding box respectively, the two electric telescopic rods are symmetrically and fixedly installed on the left side and the right side of the platform plate respectively, and the movable ends of the two electric telescopic rods are fixedly installed on the two supporting plates respectively.
6. A dry powder source milling apparatus as claimed in claim 5, wherein: the sieve plate replacing mechanism further comprises a sieve plate body and two positioning plugboards, wherein the two positioning plugboards are fixedly arranged on the left side and the right side of the bottom of the sieve plate body, the upper side of the sieve plate body is clung to the grinding wheels, and a plurality of sieve holes are formed in the sieve plate body.
7. A dry powder source milling apparatus as claimed in claim 6, wherein: the inner side of the bottom of the grinding box is provided with a placement groove, the sieve plate body is arranged in the placement groove, the platform plate is provided with two positioning grooves, and the two positioning plugboards are respectively inserted into the two positioning grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749535.3U CN219631406U (en) | 2023-04-07 | 2023-04-07 | Dry powder raw material grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320749535.3U CN219631406U (en) | 2023-04-07 | 2023-04-07 | Dry powder raw material grinding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219631406U true CN219631406U (en) | 2023-09-05 |
Family
ID=87811275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320749535.3U Active CN219631406U (en) | 2023-04-07 | 2023-04-07 | Dry powder raw material grinding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219631406U (en) |
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2023
- 2023-04-07 CN CN202320749535.3U patent/CN219631406U/en active Active
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