CN109909019B - Chemical material processing equipment for accurately grinding and filtering raw materials - Google Patents

Chemical material processing equipment for accurately grinding and filtering raw materials Download PDF

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Publication number
CN109909019B
CN109909019B CN201910212796.XA CN201910212796A CN109909019B CN 109909019 B CN109909019 B CN 109909019B CN 201910212796 A CN201910212796 A CN 201910212796A CN 109909019 B CN109909019 B CN 109909019B
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container
raw materials
groove
rotary drum
processing equipment
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CN109909019A (en
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王子珺
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SHAOYANG XINHUA MATERIAL TECHNOLOGY Co.,Ltd.
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Shaoyang Xinhua Material Technology Co ltd
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Abstract

The invention discloses a processing device for chemical materials, which is used for carrying out fine grinding and filtering work on raw materials and comprises a container, a grinding ball and a motor, wherein a material storage room is arranged at the top end of the container, a cover plate is arranged above the material storage room and is mutually connected with the container, a connecting shaft is fixedly arranged on the lower surface of the cover plate and is mutually connected with a first connecting groove, the first connecting groove is arranged in the upper end of the container, the top end of the first connecting groove is mutually connected with a sliding groove, and the sliding groove is mutually connected with a second connecting groove. This processing equipment for chemical material carries out correct grinding and filtration work to the raw materials, this processing equipment carries out the work of grinding to chemical material through rotatory carousel and ball-milling, and interval from the top down between carousel and the container inner wall diminishes gradually simultaneously to the work of carrying out the grinding in the effectual chemical material of being convenient for falls into the interval between carousel and the container, has increased the homogeneity that carries out the grinding to chemical material simultaneously.

Description

Chemical material processing equipment for accurately grinding and filtering raw materials
Technical Field
The invention relates to the technical field of chemical machinery, in particular to a processing device for chemical materials, which is used for carrying out fine grinding and filtering work on raw materials.
Background
The processing equipment for the chemical materials is equipment for processing and treating chemical raw materials, and the processing steps of the chemical raw materials are different according to different production, so that various equipment is required to be used for processing according to the processing steps of the chemical raw materials, wherein the processing equipment comprises the step of grinding the chemical materials, the chemical raw materials are convenient to crush, but the existing grinding processing equipment still has the following problems;
1. when the grinding work is carried out on the chemical raw materials, the grinding processing on the chemical raw materials is not uniform enough, so that the processed chemical raw materials are doped with some chemical raw materials with larger particles, the subsequent production processing work on the chemical raw materials is influenced, and the grinding uniformity of the processing equipment on the chemical raw materials cannot be improved;
2. in the process of processing industrial chemicals, the industrial chemicals are ground and filtered, and a plurality of driving devices are required to be used for controlling the grinding and filtering work of the processing equipment, so that the loss of the processing equipment to energy is increased, and the processing equipment is not beneficial to energy conservation and environmental protection.
We have therefore proposed a processing apparatus for chemical materials which performs fine grinding and filtering operations on raw materials in order to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide processing equipment for chemical materials, which is used for accurately grinding and filtering raw materials and aims to solve the problems that the processing equipment in the prior market provided by the background technology cannot uniformly grind the chemical materials and is easy to dope some chemical materials with larger particles, so that the subsequent production processing is influenced, the grinding uniformity of the chemical materials cannot be improved, and the energy conservation and the environmental protection are not facilitated.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a processing equipment for chemical material who carries out fine grinding and filtration work to raw materials, includes container, ball and motor, the top of container is seted up between the storage, and is provided with the apron above the storage, and apron and container interconnect, the lower fixed surface of apron installs the connecting axle, and connecting axle and first connecting groove interconnect, and first connecting groove is seted up inside the upper end of container, the top and the spout interconnect of first connecting groove, and spout and second connecting groove interconnect, and spout and second connecting groove all set up on the container, the below of storage is provided with the carousel, and the carousel is located the inside of container, ball fixed mounting is on the upper surface of carousel and the inner wall of container, the surface bottom of carousel is provided with the rotary drum, and the rotary drum is located the inside of container, the bottom of rotary drum is provided with the ball, and the ball is located the inside of container, the left of rotary drum is provided with drive gear, and drive gear installs on the top of motor to motor fixed mounting is at the surface of container, the below of carousel is provided with the filter layer, and filter layer fixed mounting is on the inboard top of carriage, the surface and the cam interconnect of carriage, and the cam is located the inside of accomodating the groove, the lower surface interconnect of carriage and the upper surface of fixed frame, and fixed frame are located inside the bottom of container to the fixed surface fixed mounting of fixed frame has the fixed axle, the inner wall fixed connection of fixed axle and container.
Preferably, the cover plate is connected with the top surface of the container in a clamping manner, the connecting shaft on the bottom surface of the cover plate forms a sliding structure with the container through the first connecting groove, and the connecting shafts are symmetrically distributed about the longitudinal center line of the cover plate.
Preferably, the connecting shaft respectively with spout and second spread groove constitution sliding construction, and the spout is the arc structure to the height that highly is less than first spread groove of second spread groove.
Preferably, the turntable and the drum are of an integral structure, the distance between the turntable and the inner wall of the container is gradually reduced from top to bottom, and the top end of the turntable is of an arc-shaped structure.
Preferably, the rotary drum comprises a through groove, a first toothed block, a sleeve ring and a second toothed block, the through groove is formed in the top surface of the rotary drum, the first toothed block is fixedly mounted on the outer surface of the rotary drum, the sleeve ring is fixedly mounted on the inner side of the rotary drum, and the second toothed block is fixedly mounted on the inner wall of the sleeve ring.
Preferably, the number of the through grooves is 4, the 4 through grooves are distributed on the rotary drum at equal angles, the through grooves are of arc-shaped structures, the rotary drum is in meshed connection with the driving gear through the first tooth blocks, and the rotary drum and the container form a rotating structure through balls.
Preferably, the cam comprises a connecting gear and a rotating shaft, the cam is fixedly installed on the outer surface of the rotating shaft, the connecting gear is installed on the outer surfaces of the upper end and the lower end of the rotating shaft, and the connecting gear is connected with the lantern ring in a meshed mode through the second tooth block.
Preferably, the cam has a rotating structure formed by a rotating shaft and a receiving groove, and the cam has a drop shape in a plan view, and the number of the cams is 2.
Preferably, the distance between the fixing frame and the container is equal to the diameter of the filtering hole in the filtering layer, and the connecting frame on the fixing frame and the container form a sliding structure.
Compared with the prior art, the invention has the beneficial effects that: the processing equipment for the chemical materials is used for carrying out fine grinding and filtering work on the raw materials;
1. according to the processing equipment, the chemical raw materials are ground through the rotating turntable and the grinding balls, and meanwhile, the distance between the turntable and the inner wall of the container is gradually reduced from top to bottom, so that the chemical raw materials can effectively and conveniently fall into the distance between the turntable and the container to be ground, and meanwhile, the uniformity of grinding the chemical raw materials is improved;
2. the ground chemical raw materials fall on the filter layer to be filtered, so that the chemical raw materials with particles which do not reach the standard are effectively filtered, the chemical raw materials with particles which reach the standard are conveniently collected, and the uniformity of the processing equipment for crushing the chemical raw materials is improved;
3. the not up to standard industrial chemicals of granule carries out the work that removes through repeated gliding carriage and filter layer to move the not up to standard industrial chemicals of granule in the clearance between carriage and the container, make gliding carriage carry out the work of smashing to the not up to standard industrial chemicals of granule, the industrial chemicals after smashing slides out in the clearance between fixed frame and the container and collects the work.
Drawings
FIG. 1 is a schematic structural view of the whole front view section of the structure of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic top view of the storage room and chute of the present invention;
FIG. 4 is a schematic cross-sectional front view of a second connecting groove of the present invention;
FIG. 5 is a schematic top view of the drum of the present invention;
FIG. 6 is a schematic top view of the connecting structure of the connecting gear and the second gear block of the present invention;
FIG. 7 is a schematic top view of the cam of the present invention;
fig. 8 is a schematic view of the connection structure of the fixing shaft with the fixing frame and the container in a top view.
In the figure: 1. a container; 2. a storage room; 3. a cover plate; 4. a connecting shaft; 5. a first connecting groove; 6. a chute; 7. a second connecting groove; 8. a turntable; 9. grinding balls; 10. a rotating drum; 11. a through groove; 12. a first tooth block; 13. a drive gear; 14. a motor; 15. a ball bearing; 16. a collar; 17. a second tooth block; 18. a connecting gear; 19. a rotating shaft; 20. a cam; 21. a receiving groove; 22. a connecting frame; 23. a filter layer; 24. a fixing frame; 25. and fixing the shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a processing device for chemical materials for carrying out fine grinding and filtering work on raw materials comprises a container 1, grinding balls 9 and a motor 14, wherein a storage room 2 is arranged at the top end of the container 1, a cover plate 3 is arranged above the storage room 2, the cover plate 3 is connected with the container 1, a connecting shaft 4 is fixedly arranged on the lower surface of the cover plate 3, the connecting shaft 4 is connected with a first connecting groove 5, the first connecting groove 5 is arranged inside the upper end of the container 1, the top end of the first connecting groove 5 is connected with a sliding groove 6, the sliding groove 6 is connected with a second connecting groove 7, the sliding groove 6 and the second connecting groove 7 are both arranged on the container 1, a rotary disc 8 is arranged below the storage room 2, the rotary disc 8 is positioned inside the container 1, the grinding balls 9 are fixedly arranged on the upper surface of the rotary disc 8 and the inner wall of the container 1, a rotary drum 10 is arranged at the bottom end of the outer, the rotary drum 10 is positioned in the container 1, the ball 15 is arranged at the bottom end of the rotary drum 10, the ball 15 is positioned in the container 1, the driving gear 13 is arranged on the left side of the rotary drum 10, the driving gear 13 is installed at the top end of the motor 14, the motor 14 is fixedly installed on the outer surface of the container 1, the filter layer 23 is arranged below the rotary disc 8, the filter layer 23 is fixedly installed at the top end of the inner side of the connecting frame 22, the outer surface of the connecting frame 22 is connected with the cam 20, the cam 20 is positioned in the accommodating groove 21, the lower surface of the connecting frame 22 is connected with the upper surface of the fixing frame 24, the fixing frame 24 is positioned in the bottom end of the container 1, the fixing shaft 25 is fixedly installed on the outer surface of the fixing frame 24;
the cover plate 3 is connected with the top surface of the container 1 in a clamping manner, the connecting shaft 4 on the bottom surface of the cover plate 3 and the container 1 form a sliding structure through the first connecting groove 5, the connecting shaft 4 is symmetrically distributed about the longitudinal center line of the cover plate 3, and workers can seal the material storage room 2 through the cover plate 3, so that impurities are prevented from falling into the material storage room 2 when the processing equipment is not used, and the next use work is prevented from being influenced;
the connecting shaft 4 and the sliding chute 6 and the second connecting groove 7 respectively form a sliding structure, the sliding chute 6 is of an arc-shaped structure, the height of the second connecting groove 7 is smaller than that of the first connecting groove 5, and the connecting shaft 4 is driven to move into the second connecting groove 7 by pulling and rotating the cover plate 3, so that the position of the cover plate 3 after being opened is limited, and the subsequent filling work of chemical raw materials is facilitated;
the turntable 8 and the rotary drum 10 are of an integrated structure, the distance between the turntable 8 and the inner wall of the container 1 is gradually reduced from top to bottom, the top end of the turntable 8 is of an arc-shaped structure, the rotary drum 10 is favorable for driving the turntable 8 to rotate, meanwhile, the distance between the turntable 8 and the inner wall of the container 1 is convenient for grinding of chemical raw materials, and the working efficiency during grinding is improved;
the rotary drum 10 comprises a through groove 11, a first toothed block 12, a sleeve ring 16 and a second toothed block 17, the through groove 11 is formed in the top surface of the rotary drum 10, the first toothed block 12 is fixedly installed on the outer surface of the rotary drum 10, the sleeve ring 16 is fixedly installed on the inner side of the rotary drum 10, and the second toothed block 17 is fixedly installed on the inner wall of the sleeve ring 16, so that the rotary drum 10 is effectively connected with the processing equipment to integrally work and operate, and the processing equipment can conveniently process chemical raw materials;
the number of the through grooves 11 is 4, the 4 through grooves 11 are distributed on the rotary drum 10 at equal angles, the through grooves 11 are of an arc-shaped structure, the rotary drum 10 is meshed with the driving gear 13 through the first tooth blocks 12, the rotary drum 10 and the container 1 form a rotary structure through the balls 15, the downward sliding speed of chemical raw materials is increased under the condition that the rotary drum 10 drives the rotary disc 8 to rotate, the chemical raw materials can conveniently slide onto the filter layer 23, and meanwhile, the rotary drum 10 can conveniently rotate through the rotation of the driving gear 13;
the cam 20 comprises a connecting gear 18 and a rotating shaft 19, the cam 20 is fixedly arranged on the outer surface of the rotating shaft 19, the connecting gear 18 is arranged on the outer surface of the upper end and the lower end of the rotating shaft 19, the connecting gear 18 is in meshed connection with the lantern ring 16 through the second tooth block 17, and the connecting gear 18 is favorably connected with the lantern ring 16 through the second tooth block 17, so that the lantern ring 16 drives the connecting gear 18 to rotate when rotating, and then the rotating shaft 19 is driven to rotate through the connecting gear 18;
the cams 20 and the accommodating grooves 21 form a rotating structure through the rotating shaft 19, the overlooking of the cams 20 is in a drop shape, and the number of the cams 20 is 2, so that the connecting frame 22 can be repeatedly and leftwards and rightwards pushed, the connecting frame 22 can conveniently extrude chemical raw materials, and meanwhile, the filtering speed of the filtering layer 23 on the chemical raw materials is improved;
the distance between the fixing frame 24 and the container 1 is equal to the diameter of the filtering holes on the filtering layer 23, and the connecting frame 22 on the fixing frame 24 and the container 1 form a sliding structure, so that the chemical raw materials crushed by the connecting frame 22 can slide out conveniently, and the crushed chemical raw materials can be collected.
The working principle of the embodiment is as follows: according to fig. 1-2 and 6-7, in using the processing apparatus for chemical materials for fine grinding and filtering of raw materials, the motor 14 is first manually interconnected to an external power source by wires, the motor 14 being of a commercially known and known technology, not described in detail, the motor 14 rotates the driving gear 13, so that the driving gear 13 rotates the drum 10 via the first tooth block 12 inside the container 1 via the balls 15, then the rotary drum 10 drives the rotary disk 8 to rotate in the container 1, and simultaneously the rotary drum 10 drives the lantern ring 16 to rotate, so that the lantern ring 16 drives the connecting gear 18 to rotate in the container 1 through the second tooth block 17 and the rotating shaft 19, so that the rotating shaft 19 drives the cam 20 to rotate in the accommodating groove 21, then the cam 20 pushes the connecting frame 22, so that the connecting frame 22 performs repeated left-right sliding work in the container 1;
according to the drawings of fig. 1 and 3-4, the cover plate 3 is manually pulled upwards to separate the cover plate 3 from the container 1, the cover plate 3 drives the connecting shaft 4 to slide in the first connecting groove 5, the bottom end of the connecting shaft 4 slides into the sliding groove 6, the cover plate 3 rotates clockwise, the cover plate 3 drives the bottom end of the connecting shaft 4 to slide in the sliding groove 6, the connecting shaft 4 is aligned with the second connecting groove 7, the cover plate 3 is manually loosened slowly, the cover plate 3 drives the bottom end of the connecting shaft 4 to slide into the second connecting groove 7, and the position of the cover plate 3 is limited;
according to the figures 1, 5 and 7, the chemical raw materials are filled in the storage room 2, so that the chemical raw materials slide into a gap between the rotary disc 8 and the inner wall of the container 1 through the bottom end of the storage room 2, the rotary disc 8 and the grinding balls 9 grind the chemical raw materials, the ground chemical raw materials slide to the upper surface of the filter layer 23 through the through grooves 11 in the rotary drum 10 to be filtered, the chemical raw materials with up-to-standard particles pass through the filter layer 23 and the fixing frame 24 to slide out through the outlet at the bottom end of the container 1, the filter layer 23 slides repeatedly left and right through the connecting frame 22, the filtering speed of the chemical raw materials is increased, meanwhile, a worker places the collecting device right below the outlet at the bottom end of the container 1 in advance, and collects the chemical raw materials with up-to-standard particles;
according to fig. 1-2 and fig. 7-8, the large-particle chemical raw material stays on the upper surface of the filter layer 23, so that the large-particle chemical raw material gradually moves to the gap between the connecting frame 22 and the container 1 through the sliding of the filter layer 23 and the connecting frame 22, the sliding connecting frame 22 performs grinding operation on the large-particle chemical raw material, the ground chemical raw material slides down through the gap between the fixing frame 24 and the inner wall of the container 1, and the ground chemical raw material is discharged from the fixing shaft 25 through the outlet at the bottom end of the container 1, so that the stability of the fixing frame 24 inside the container 1 is improved, and a series of operations are completed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a processing equipment for chemical material to raw materials fine grinding and filtration work, includes container (1), ball (9) and motor (14), its characterized in that: the top end of the container (1) is provided with a material storage room (2), a cover plate (3) is arranged above the material storage room (2), the cover plate (3) is connected with the container (1), a connecting shaft (4) is fixedly arranged on the lower surface of the cover plate (3), the connecting shaft (4) is connected with a first connecting groove (5), the first connecting groove (5) is arranged inside the upper end of the container (1), the top end of the first connecting groove (5) is connected with a sliding groove (6), the sliding groove (6) is connected with a second connecting groove (7), the sliding groove (6) and the second connecting groove (7) are both arranged on the container (1), a turntable (8) is arranged below the material storage room (2), the turntable (8) is positioned inside the container (1), and a grinding ball (9) is fixedly arranged on the upper surface of the turntable (8) and the inner wall of the container (1), the bottom end of the outer surface of the rotary disc (8) is provided with a rotary drum (10), the rotary drum (10) is positioned in the container (1), the bottom end of the rotary drum (10) is provided with balls (15), the balls (15) are positioned in the container (1), the left side of the rotary drum (10) is provided with a driving gear (13), the driving gear (13) is installed at the top end of a motor (14), the motor (14) is fixedly installed on the outer surface of the container (1), a filter layer (23) is arranged below the rotary disc (8), the filter layer (23) is fixedly installed at the top end of the inner side of a connecting frame (22), the outer surface of the connecting frame (22) is connected with a cam (20), the cam (20) is positioned in the accommodating groove (21), the lower surface of the connecting frame (22) is connected with the upper surface of a fixing frame (24), and the fixing frame (24) is positioned in the bottom end of the container (1, a fixed shaft (25) is fixedly arranged on the outer surface of the fixed frame (24), and the fixed shaft (25) is fixedly connected with the inner wall of the container (1);
the rotary drum (10) comprises a through groove (11), a first toothed block (12), a sleeve ring (16) and a second toothed block (17), the through groove (11) is formed in the top surface of the rotary drum (10), the first toothed block (12) is fixedly mounted on the outer surface of the rotary drum (10), the sleeve ring (16) is fixedly mounted on the inner side of the rotary drum (10), and the second toothed block (17) is fixedly mounted on the inner wall of the sleeve ring (16).
2. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the cover plate (3) is connected with the top surface of the container (1) in a clamping mode, the connecting shaft (4) on the bottom surface of the cover plate (3) forms a sliding structure with the container (1) through the first connecting groove (5), and the connecting shaft (4) is symmetrically distributed about the longitudinal center line of the cover plate (3).
3. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the connecting shaft (4) respectively forms a sliding structure with the sliding groove (6) and the second connecting groove (7), the sliding groove (6) is of an arc-shaped structure, and the height of the second connecting groove (7) is smaller than that of the first connecting groove (5).
4. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the rotary table (8) and the rotary drum (10) are of an integrated structure, the distance between the rotary table (8) and the inner wall of the container (1) is gradually reduced from top to bottom, and the top end of the rotary table (8) is of an arc-shaped structure.
5. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the number of the through grooves (11) is 4, the 4 through grooves (11) are distributed on the rotary drum (10) at equal angles, the through grooves (11) are of arc-shaped structures, the rotary drum (10) is meshed with the driving gear (13) through the first tooth block (12), and the rotary drum (10) and the container (1) form a rotating structure through the balls (15).
6. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the cam (20) comprises a connecting gear (18) and a rotating shaft (19), the cam (20) is fixedly installed on the outer surface of the rotating shaft (19), the connecting gear (18) is installed on the outer surfaces of the upper end and the lower end of the rotating shaft (19), and the connecting gear (18) is connected with the lantern ring (16) in a meshed mode through the second tooth block (17).
7. The processing equipment for chemical materials, which performs the fine grinding and filtering work on the raw materials, according to claim 5, wherein: the cam (20) forms a rotating structure through a rotating shaft (19) and a containing groove (21), the cam (20) is in a drop shape in plan view, and 2 cams (20) are arranged.
8. The processing equipment for chemical materials, which performs fine grinding and filtering work on raw materials, according to claim 1, wherein: the distance between the fixing frame (24) and the container (1) is equal to the diameter of the filtering hole on the filtering layer (23), and the connecting frame (22) on the fixing frame (24) and the container (1) form a sliding structure.
CN201910212796.XA 2019-03-20 2019-03-20 Chemical material processing equipment for accurately grinding and filtering raw materials Active CN109909019B (en)

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CN201910212796.XA CN109909019B (en) 2019-03-20 2019-03-20 Chemical material processing equipment for accurately grinding and filtering raw materials

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CN109909019B true CN109909019B (en) 2020-09-29

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2432599A1 (en) * 2009-05-23 2012-03-28 Scott Anthony Wozny Hard drive destruction system
CN205288565U (en) * 2016-01-19 2016-06-08 江西省祥橱实业有限公司 High -efficient dove bone milling machine with toper mill
CN206597566U (en) * 2017-03-03 2017-10-31 东华理工大学 A kind of ore milling device
CN207533371U (en) * 2017-09-29 2018-06-26 马明娥 A kind of fire extinguisher dry powder grinds screening plant
CN108620163A (en) * 2018-04-28 2018-10-09 重庆市南川区王小平机械制造有限公司 Gyratory crusher
CN108837875A (en) * 2018-07-18 2018-11-20 季晓鸣 A kind of raw material of industry crushing and screening device
CN208439942U (en) * 2018-07-06 2019-01-29 德兴市龙兴钙业有限公司 A kind of calcium carbonate charger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2432599A1 (en) * 2009-05-23 2012-03-28 Scott Anthony Wozny Hard drive destruction system
CN205288565U (en) * 2016-01-19 2016-06-08 江西省祥橱实业有限公司 High -efficient dove bone milling machine with toper mill
CN206597566U (en) * 2017-03-03 2017-10-31 东华理工大学 A kind of ore milling device
CN207533371U (en) * 2017-09-29 2018-06-26 马明娥 A kind of fire extinguisher dry powder grinds screening plant
CN108620163A (en) * 2018-04-28 2018-10-09 重庆市南川区王小平机械制造有限公司 Gyratory crusher
CN208439942U (en) * 2018-07-06 2019-01-29 德兴市龙兴钙业有限公司 A kind of calcium carbonate charger
CN108837875A (en) * 2018-07-18 2018-11-20 季晓鸣 A kind of raw material of industry crushing and screening device

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Applicant before: Wang Zijun