CN119793858A - A device for screening ore - Google Patents
A device for screening ore Download PDFInfo
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- CN119793858A CN119793858A CN202510074977.6A CN202510074977A CN119793858A CN 119793858 A CN119793858 A CN 119793858A CN 202510074977 A CN202510074977 A CN 202510074977A CN 119793858 A CN119793858 A CN 119793858A
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Abstract
本发明公开了一种用于矿石筛选装置，涉及矿石开采技术领域。本发明包括筒型罩体，内筛筒和外筛筒，筒型罩体倾斜设置，且成台阶状结构，并包括排料段和集料段，内筛筒与排料段内壁转动连接，内筛筒侧壁开设有圆周阵列设置的若干排细筛孔和若干排粗筛孔，外筛筒转动连接于内筛筒外壁，外筛筒侧壁开设有若干排排料孔，用于调节外筛筒与内筛筒圆周方向的相对位置，当排料孔与粗筛孔位置对应时，外筛筒侧壁将细筛孔封堵，当排料孔与细筛孔位置对应时，外筛筒侧壁将粗筛孔封堵。本发明通过内筛筒和外筛筒转动实现对矿石的筛选，并通过筒型罩体的排料段和集料段的排料口对筛选出的矿石进行收集，解决了现有矿石不便收集，整体的使用便利性差的问题。
The invention discloses a device for screening ore, and relates to the technical field of ore mining. The invention comprises a cylindrical cover, an inner screen drum and an outer screen drum, the cylindrical cover is tilted and has a step-like structure, and comprises a discharge section and an aggregate section, the inner screen drum is rotatably connected to the inner wall of the discharge section, the inner screen drum side wall is provided with a plurality of rows of fine sieve holes and a plurality of rows of coarse sieve holes arranged in a circumferential array, the outer screen drum is rotatably connected to the outer wall of the inner screen drum, the outer screen drum side wall is provided with a plurality of rows of discharge holes, which are used to adjust the relative position of the outer screen drum and the inner screen drum in the circumferential direction, when the discharge hole corresponds to the position of the coarse sieve hole, the outer screen drum side wall blocks the fine sieve hole, and when the discharge hole corresponds to the position of the fine sieve hole, the outer screen drum side wall blocks the coarse sieve hole. The invention realizes the screening of ore by rotating the inner screen drum and the outer screen drum, and collects the screened ore through the discharge openings of the discharge section and the aggregate section of the cylindrical cover, thereby solving the problem that the existing ore is inconvenient to collect and the overall convenience of use is poor.
Description
Technical Field
The invention belongs to the technical field of ore exploitation, and particularly relates to an ore screening device.
Background
After the ore is mined, the volumes and the sizes of the ore are inconsistent, so that the ore is required to be screened and classified after the ore is mined, and the ore is convenient to process subsequently.
As chinese invention CN116618292B, an ore screening machine for mines is disclosed, when screening is required, mixed ore is put into through a feed inlet on the end face of a machine body, so that the mixed ore falls on the top surface of a first screen plate, and a vibration mechanism is started at the same time, along with the vibration of the ore on the top of the first screen plate and the downward rolling, so that medium ore and small ore fall onto a second screen plate through a first screen hole, and when continuing vibration rolling, the small ore falls onto a third screen plate through a second screen hole, and sand particles fall onto a guide table through a third screen hole and slide out obliquely.
When the first sieve plate, the second sieve plate and the third sieve plate in the prior art are distributed in a layered manner, and the ores after each layer of screening fall off from the same side, so that the ores with different sizes are not convenient to collect in a classified manner, and the integral use convenience is poor.
Disclosure of Invention
The invention aims to provide an ore screening device, which is used for screening ores through rotation of an inner screen cylinder and an outer screen cylinder, and collecting the screened ores through a discharge section of a cylinder type cover body and a discharge port of a collection section, so that the problems of inconvenient collection of the existing ores and poor overall use convenience are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention discloses an ore screening device which comprises a cylindrical cover body, an inner screen cylinder and an outer screen cylinder, wherein the cylindrical cover body is obliquely arranged, the cylindrical cover body is of a stepped structure and comprises a discharging section and a collecting section, the diameter of the discharging section is smaller than that of the collecting section, a discharging hole is formed in the lower side of the side wall of the collecting section, one end of the inner screen cylinder is rotatably connected with the inner wall of the discharging section, the other end of the inner screen cylinder extends out of the cylindrical cover body and is in transmission connection with a driving device, a plurality of rows of fine screen holes and a plurality of rows of coarse screen holes which are arranged in a circumferential array are formed in the side wall of the inner screen cylinder, the plurality of rows of fine screen holes are arranged at intervals with the plurality of rows of coarse screen holes, the outer screen cylinder is rotatably connected to the outer wall of the inner screen cylinder, the inner wall of the outer screen cylinder is attached to the outer wall of the inner screen cylinder, the plurality of rows of material discharging holes are formed in the side wall of the outer screen cylinder, the inner diameter of the material discharging hole is larger than or equal to the diameter of the coarse screen holes and are arranged in a one-to-one correspondence mode, the coarse screen holes are used for adjusting the relative positions of the outer screen cylinder and sealing the positions in the circumferential directions of the outer screen cylinder and the fine screen holes are sealed when the fine screen holes correspond to the fine screen holes and the coarse screen holes are arranged to the coarse screen holes.
As a preferable technical scheme of the invention, the port of the discharging section is connected with a guide cylinder which is in a bent structure, and the outlet end of the guide cylinder is arranged downwards.
As a preferable technical scheme of the invention, the outer wall of the cylinder cover body is fixedly connected with a bracket and is supported and fixed by the bracket, and the inclination angle of the cylinder cover body is 10-60 degrees.
As a preferable technical scheme of the invention, the inner screen cylinder is fixedly connected with a plurality of baffles, and the baffles are used for blocking ore, so that the retention time of the ore in the inner screen cylinder is conveniently increased.
As a preferable technical scheme of the invention, the driving device comprises a driving motor and a gear disc fixedly connected with the outer wall of the inner screen drum, and the driving motor is in transmission connection with the gear disc through a gear and is used for driving the inner screen drum to rotate.
As a preferable technical scheme of the invention, the outer wall of the outer screen cylinder is fixedly connected with a circular ring end plate, and the circular ring end plate is rotationally connected with the cylinder cover body.
The outer wall of the outer screen cylinder is fixedly connected with a sector worm wheel which is arranged concentrically with the outer screen cylinder, the outer wall of the inner screen cylinder is rotationally connected with a worm meshed with the sector worm wheel and used for driving the outer screen cylinder to rotate through the sector worm wheel by rotating the worm, and the relative positions of the outer screen cylinder and the inner screen cylinder in the circumferential direction are adjusted.
As a preferable technical scheme of the invention, the ore screening device further comprises a guide hopper, wherein the guide hopper is positioned at the upper end of the inner screen cylinder, a guide pipe is arranged at the lower end of the guide hopper, and the end part of the guide pipe extends into the inner screen cylinder and is used for guiding ore into the inner screen cylinder.
As a preferable technical scheme of the invention, the outer wall of the guide hopper is fixedly connected with a fixing frame for supporting and fixing through the fixing frame.
As a preferable technical scheme of the invention, the roller is arranged on the fixing frame, so that the guide hopper can be conveniently moved, the cross rod is fixedly connected with the fixing frame, and the cross rod is in sliding connection with the bracket and is used for fixing the sliding position of the cross rod, so that the position of the guide hopper is limited.
The invention has the following beneficial effects:
According to the invention, the inner screen cylinder and the outer screen cylinder are arranged in the cylinder type cover body, the ore is screened through the rotation of the inner screen cylinder and the outer screen cylinder, and the screened ore is intensively discharged through the discharge section of the cylinder type cover body and the discharge port of the collecting section, so that the ore is conveniently collected, and the integral use convenience is effectively improved.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a construction of an apparatus for ore screening according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
FIG. 5 is a schematic view of the structure of the cylinder housing, the inner screen cylinder and the outer screen cylinder;
FIG. 6 is a schematic view of the structure of the inner and outer drums during coarse screening;
FIG. 7 is a schematic view of the structure of the inner and outer drums during fine screening;
FIG. 8 is a schematic cross-sectional view of an inner screen cylinder and an outer screen cylinder during fine screening;
FIG. 9 is an exploded view of the inner and outer screen drums;
FIG. 10 is a schematic view of the structure of the inner screen cylinder;
In the drawings, the list of components represented by the various numbers is as follows:
1-cylinder type cover body, 2-inner screen cylinder, 3-outer screen cylinder, 4-driving motor, 5-guide hopper, 101-discharge section, 102-collection section, 103-discharge port, 104-guide cylinder, 105-bracket, 201-fine screen hole, 202-coarse screen hole, 203-baffle, 301-discharge hole, 302-circular end plate, 303-sector worm wheel, 304-worm, 401-gear plate, 501-guide pipe and 502-cross bar.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1-3, the invention relates to an ore screening device, which comprises a cylindrical cover body 1, an inner screen cylinder 2 and an outer screen cylinder 3, wherein a bracket 105 is fixedly connected to the outer wall of the cylindrical cover body 1 and is supported and fixed by the bracket 105, the cylindrical cover body 1 is obliquely arranged, and the inclination angle of the cylindrical cover body 1 is 10-60 degrees.
As shown in fig. 4, 5 and 10, the cylindrical cover 1 is in a step structure, and comprises a discharging section 101 and an aggregate section 102, wherein the port of the discharging section 101 is downward, the port of the aggregate section 102 is upward, the diameter of the discharging section 101 is smaller than that of the aggregate section 102, and a discharging opening 103 is formed in the lower side of the side wall of the aggregate section 102.
One end of the inner screen drum 2 is rotationally connected with the inner wall of the discharge section 101, the other end extends out of the drum type cover body 1 and is in transmission connection with a driving device, for example, the driving device comprises a driving motor 4 and a gear disc 401 fixedly connected with the outer wall of the inner screen drum 2, the driving motor 4 is in transmission connection with the gear disc 401 through a gear and is used for driving the inner screen drum 2 to rotate, the gear disc 401 can also be a belt wheel, and the driving motor 4 and the inner screen drum 2 are in transmission through a belt.
The side wall of the inner screen drum 2 is provided with a plurality of rows of fine screen holes 201 and a plurality of rows of coarse screen holes 202 which are arranged in a circumferential array, and the diameter of the fine screen holes 201 is smaller than that of the coarse screen holes 202. Each row of fine screen holes 201 is arranged in an axial array along the inner screen drum 2, each row of coarse screen holes 202 is also arranged in an axial array along the inner screen drum 2, a plurality of rows of fine screen holes 201 are arranged at intervals with a plurality of rows of coarse screen holes 202, and meanwhile, the fine screen holes 201 and the coarse screen holes 202 are arranged in a one-to-one correspondence in the circumferential direction of the inner screen drum 2.
As shown in fig. 4, 5 and 9, the outer screen drum 3 is rotatably connected to the outer wall of the inner screen drum 2, and the inner wall of the outer screen drum 3 is attached to the outer wall of the inner screen drum 2, and a plurality of rows of discharge holes 301 are formed in the side wall of the outer screen drum 3. The outer wall of the outer screen cylinder 3 is fixedly connected with a circular ring end plate 302, and the circular ring end plate 302 is rotationally connected with the cylinder cover body 1, so that a certain support is provided for the inner wall of the outer screen cylinder 3 and the inner screen cylinder 2 through the circular ring end plate 302.
As shown in fig. 6, the inner diameter of the discharge hole 301 is equal to or larger than the diameter of the coarse screen hole 202, and is arranged in one-to-one correspondence with the coarse screen hole 202, the outer wall of the outer screen cylinder 3 is fixedly connected with a sector worm gear 303, and the sector worm gear 303 and the outer screen cylinder 3 are concentrically arranged. The outer wall of the inner screen cylinder 2 is rotationally connected with a worm 304 meshed with the sector worm wheel 303, a clamping part is arranged on a rotating shaft at one end of the worm 304, clamping is facilitated through a spanner, the worm 304 is rotated, or the rotating shaft at one end of the worm 304 is connected with a hand wheel, and the worm 304 is directly rotated through the hand wheel. The worm 304 rotates, and the sector worm wheel 303 drives the outer screen drum 3 to rotate, so that the relative positions of the outer screen drum 3 and the inner screen drum 2 in the circumferential direction are adjusted.
The self-locking property of the worm gear is utilized, the inner screen cylinder 2 can drive the outer screen cylinder 3 to synchronously rotate when rotating, meanwhile, a plurality of threaded through holes can be formed in the side wall of the outer screen cylinder 3, the threaded through holes are connected with hand screws, the position between the outer screen cylinder 3 and the inner screen cylinder 2 can be ensured to be fixed by locking the hand screws, and accordingly synchronous rotation between the inner screen cylinder 2 and the outer screen cylinder 3 is ensured.
Through adjusting the relative position of outer screen section of thick bamboo 3 and interior screen section of thick bamboo 2 circumferencial direction to when discharge hole 301 and coarse screen hole 202 position correspond, the fine screen hole 201 shutoff is with outer screen section of thick bamboo 3 lateral wall, and at this moment, interior screen section of thick bamboo 2 is at the rotation in-process, inside ore can only be sieved out through coarse screen hole 202 and discharge hole 301, thereby realize preliminary screening, the ore of screening drops to the inside section of gathering materials 102 of drum type cover 1, and roll down along the inner wall, because step-like structure, make the ore of screening collect in section of gathering materials 102 lower extreme, and concentrate the discharge by discharge gate 103. And the ore after screening, owing to the slope setting of outer screen drum 3, roll towards discharge section 101 gradually to finally by discharge section 101 discharge, concentrate the discharge to the ore of screening through the discharge section 101 of the drum type cover body and the bin outlet 103 of collection section 102, thereby be convenient for collect the ore, thereby effectually improved holistic convenience of use.
As shown in fig. 7 and 8, by rotating the worm 304, the relative positions of the outer screen cylinder 3 and the inner screen cylinder 2 in the circumferential direction are adjusted, and when the discharge holes 301 correspond to the positions of the fine screen holes 201, the coarse screen holes 202 are blocked by the side walls of the outer screen cylinder 3.
At this time, the inner screen drum 2 can only screen out through the fine screen holes 201 and the discharge holes 301 in the rotation process, so that finer screening of ores is realized, the outer screen drum 3 is flexibly adjusted according to different screening specifications, and ores with different specification requirements are screened.
As a preferred embodiment, as shown in fig. 1, 4 and 10, the port of the discharge section 101 is connected with a guide cylinder 104, the guide cylinder 104 is in a curved structure, the guide cylinder 104 is in a reducing pipe structure, the diameter of the guide cylinder is gradually reduced along the direction of the outlet end, and the outlet end is downward, so that ores can be better discharged in a concentrated manner, and the collection convenience is improved.
Meanwhile, a plurality of baffles 203 are welded or screwed inside the inner screen cylinder 2 and used for blocking ore rolling towards the discharge section 101 in the inner screen cylinder 2 through the baffles 203, so that the retention time of the ore in the inner screen cylinder 2 is conveniently increased, and the screening of the ore is ensured to be more thorough.
As another preferred embodiment, as shown in fig. 1 and 4, the device further comprises a guide hopper 5, wherein the guide hopper 5 is positioned at the upper end of the inner screen drum 2, a guide pipe 501 is arranged at the lower end of the guide hopper 5, ore is directly conveyed into the guide hopper 5 through a conveying device during screening, and the end part of the guide pipe 501 extends into the inner screen drum 2 and is used for guiding the ore into the inner screen drum 2, so that the convenience of feeding is improved.
Meanwhile, the outer wall of the guide hopper 5 is fixedly connected with a fixing frame 501 for supporting and fixing through the fixing frame 501. The roller is installed to mount 501, is convenient for remove guide hopper 5 to improve the convenience to guide hopper 5 removal or position adjustment.
And, mount 501 fixedly connected with horizontal pole 502, and sliding connection between horizontal pole 502 and support 105, for example, alternate through the guide pin bushing between horizontal pole 502 and support 105 and be connected to, guide pin bushing position is connected with the screw, through locking screw, utilizes the screw extrusion horizontal pole 502 for fix the sliding position of horizontal pole 502, realize prescribing a limit to the position of guide hopper 5.
In addition, the side wall of the aggregate section 102 of the cylinder cover body 1 can be communicated with the dust removing device through a pipeline, so that dust generated during screening can be conveniently pumped away, the dust removing effect is realized, and the overall environmental protection performance is improved.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. An apparatus for ore screening comprising:
The cylindrical cover body (1), the cylindrical cover body (1) is obliquely arranged, the cylindrical cover body (1) is of a step-shaped structure, the cylindrical cover body comprises a discharging section (101) and a collecting section (102), the diameter of the discharging section (101) is smaller than that of the collecting section (102), and a discharging opening (103) is formed in the lower side of the side wall of the collecting section (102);
The inner screen cylinder (2), one end of the inner screen cylinder (2) is rotationally connected with the inner wall of the discharge section (101), and the other end of the inner screen cylinder extends out of the cylinder cover body (1) and is in transmission connection with a driving device, a plurality of rows of fine screen holes (201) and a plurality of rows of coarse screen holes (202) which are arranged in a circumferential array are formed in the side wall of the inner screen cylinder (2), and the plurality of rows of fine screen holes (201) and the plurality of rows of coarse screen holes (202) are arranged at intervals;
The outer screen cylinder (3), the outer screen cylinder (3) is rotationally connected to the outer wall of the inner screen cylinder (2), the inner wall of the outer screen cylinder (3) is attached to the outer wall of the inner screen cylinder (2), and a plurality of discharge holes (301) are formed in the side wall of the outer screen cylinder (3);
The inner diameter of the discharge hole (301) is larger than or equal to the diameter of the coarse screen hole (202), the discharge hole is arranged in one-to-one correspondence with the coarse screen hole (202) and used for adjusting the relative positions of the outer screen cylinder (3) and the inner screen cylinder (2) in the circumferential direction, when the discharge hole (301) corresponds to the coarse screen hole (202), the fine screen hole (201) is blocked by the side wall of the outer screen cylinder (3), and when the discharge hole (301) corresponds to the fine screen hole (201), the coarse screen hole (202) is blocked by the side wall of the outer screen cylinder (3).
2. The ore screening apparatus as claimed in claim 1, wherein the discharge section (101) has a guide cylinder (104) connected to a port thereof, the guide cylinder (104) being of a curved configuration with an outlet end facing downwards.
3. The ore screening device according to claim 1 or 2, characterized in that the outer wall of the cylindrical cover body (1) is fixedly connected with a bracket (105) and supported and fixed by the bracket (105), and the inclination angle of the cylindrical cover body (1) is 10-60 degrees.
4. An apparatus for ore screening according to claim 1, characterized in that the inner screen drum (2) is fixedly connected with a number of baffles (203) for blocking the ore by the baffles (203) for facilitating an increase of the residence time of the ore in the inner screen drum (2).
5. A device for ore screening according to claim 1 or 2, characterized in that the drive means comprise a gear disc (401) fixedly connected to the drive motor (4) and to the outer wall of the inner screen drum (2), the drive motor (4) being in transmission connection with the gear disc (401) via a gear for driving the inner screen drum (2) in rotation.
6. The ore screening apparatus as claimed in claim 1, wherein the outer wall of the outer screen cylinder (3) is fixedly connected with a circular ring end plate (302), and the circular ring end plate (302) is rotatably connected with the cylinder cover body (1).
7. The ore screening apparatus according to claim 1 or 6, wherein the outer wall of the outer screen cylinder (3) is fixedly connected with a sector worm wheel (303), and the sector worm wheel (303) is concentrically arranged with the outer screen cylinder (3);
the outer wall of the inner screen cylinder (2) is rotationally connected with a worm (304) meshed with a sector worm wheel (303) and is used for driving the outer screen cylinder (3) to rotate through the sector worm wheel (303) by rotating the worm (304), so that the relative positions of the outer screen cylinder (3) and the inner screen cylinder (2) in the circumferential direction are adjusted.
8. A device for ore screening according to claim 3, further comprising a guide hopper (5), said guide hopper (5) being located at the upper end of the inner screen drum (2), the lower end of the guide hopper (5) having a guide tube (501), the end of the guide tube (501) extending into the inner screen drum (2) for guiding ore into the inner screen drum (2).
9. The ore screening apparatus as claimed in claim 8, wherein the outer wall of the guide hopper (5) is fixedly connected with a fixing frame (501) for supporting and fixing by the fixing frame (501).
10. The ore screening apparatus as claimed in claim 9, wherein the fixing frame (501) is provided with rollers for facilitating movement of the guide hopper (5), the fixing frame (501) is fixedly connected with a cross bar (502), and the cross bar (502) is slidably connected with the bracket (105) for fixing a sliding position of the cross bar (502), so as to limit the position of the guide hopper (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510074977.6A CN119793858A (en) | 2025-01-17 | 2025-01-17 | A device for screening ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510074977.6A CN119793858A (en) | 2025-01-17 | 2025-01-17 | A device for screening ore |
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| Publication Number | Publication Date |
|---|---|
| CN119793858A true CN119793858A (en) | 2025-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510074977.6A Pending CN119793858A (en) | 2025-01-17 | 2025-01-17 | A device for screening ore |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940811A (en) * | 2018-08-16 | 2018-12-07 | 中国电建集团长春发电设备有限公司 | The drum-type screening machine of changeable slot size |
| CN110639790A (en) * | 2019-08-24 | 2020-01-03 | 安徽友邦新材料有限公司 | Ore washer |
| CN211587412U (en) * | 2020-01-19 | 2020-09-29 | 沈建红 | Be used for ore sieving mechanism |
| WO2021031341A1 (en) * | 2019-08-16 | 2021-02-25 | 江苏三一环境科技有限公司 | Feeding device and particle preparation machine |
| CN119076384A (en) * | 2024-11-05 | 2024-12-06 | 安徽云龙粮机有限公司 | Integrated double drum vibrating screen for grain processing production lines |
-
2025
- 2025-01-17 CN CN202510074977.6A patent/CN119793858A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108940811A (en) * | 2018-08-16 | 2018-12-07 | 中国电建集团长春发电设备有限公司 | The drum-type screening machine of changeable slot size |
| WO2021031341A1 (en) * | 2019-08-16 | 2021-02-25 | 江苏三一环境科技有限公司 | Feeding device and particle preparation machine |
| CN110639790A (en) * | 2019-08-24 | 2020-01-03 | 安徽友邦新材料有限公司 | Ore washer |
| CN211587412U (en) * | 2020-01-19 | 2020-09-29 | 沈建红 | Be used for ore sieving mechanism |
| CN119076384A (en) * | 2024-11-05 | 2024-12-06 | 安徽云龙粮机有限公司 | Integrated double drum vibrating screen for grain processing production lines |
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