CN115722330A - High-efficient feed mechanism is used to mine breaker - Google Patents
High-efficient feed mechanism is used to mine breaker Download PDFInfo
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- CN115722330A CN115722330A CN202211503696.0A CN202211503696A CN115722330A CN 115722330 A CN115722330 A CN 115722330A CN 202211503696 A CN202211503696 A CN 202211503696A CN 115722330 A CN115722330 A CN 115722330A
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- 238000000926 separation method Methods 0.000 claims abstract description 24
- 238000007906 compression Methods 0.000 claims description 9
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- 238000007789 sealing Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 abstract description 43
- 238000005065 mining Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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Abstract
The application discloses be applied to high-efficient feed mechanism for mine breaker in mining exploitation field, this high-efficient feed mechanism for mine breaker is through being provided with the transport shell, carry the inner fixedly connected with of shell upside and go up the branch board, go up a plurality of runner pipes of angle fixedly connected with such as branch board inner, go up runner pipe lower extreme fixedly connected with and accept the bottom plate, accept a plurality of main sieve groups of angle installation such as bottom plate lower extreme, main sieve group includes and accepts the bottom plate and rotates the rotation mainboard of being connected, rotate mainboard outside middle-end and seted up the circulation chamber, it installs the skew control group to rotate the mainboard outer end, the skew control group includes a pair of sliding plate with the slip joint of rotation mainboard outer end, the realization is pressed the skew control group when having the building stones that surpass standard size, press the separation group, thereby drive main sieve group and rotate, and open lower clamp ring, and then shift and go out the large-size building stones, reach the mesh that improves crushing efficiency and protection organism.
Description
Technical Field
The application relates to the field of mining exploitation, in particular to a high-efficiency feeding mechanism for a mine crusher.
Background
The mine crusher is also called a crusher for mines, and is widely applied to various departments such as mines, smelting, building materials, highways, railways, water conservancy, chemical industry and the like. The common stone crushing machines include jaw crushers, impact crushers, winnowing crushers, hammer crushers, impact crushers, roll crushers, combined crushers, cone crushers, and the like. When the cone crusher (cone crusher) works, the rotation of the motor rotates around a fixed rotating pendulum under the forced action of the eccentric sleeve through the belt pulley or the shaft coupling, the transmission shaft and the cone part, so that the crushing wall of the cone crusher is close to or separated from the surface of the white rolling wall fixedly arranged on the adjusting sleeve, and the ore is continuously impacted in the crushing cavity, and is crushed under the extrusion and bending actions.
However, if the pre-separation is not thorough enough before crushing the stones, a lot of large-sized stones are left, after the stones enter the crushing cavity, if the size or hardness exceeds the rated load of the cone crusher, a self-protection function is triggered, the upper shell of the crusher moves upwards to discharge all stones in the crushing cavity at one time, however, if the large-sized stones are too much, the stones in the cavity are frequently discharged, so that the working efficiency is reduced, and the machine body is easily damaged.
Therefore, when feeding, if can in time screen out the building stones that exceed the specification and discharge it, then can effectively improve crushing efficiency, protect the organism simultaneously.
Disclosure of Invention
The application aims at screening and removing stones exceeding a certain size in the feeding process so as to reduce the triggering frequency of overpressure protection of the crusher, improve the crushing efficiency and protect the machine body, compared with the prior art, the high-efficiency feeding mechanism for the mine crusher is provided, a conveying shell is arranged, the inner end of the upper side of the conveying shell is fixedly connected with an upper branch plate, the inner end of the upper branch plate is fixedly connected with a plurality of upper circulating pipes at equal angles, the lower end of each upper circulating pipe is fixedly connected with a bearing bottom plate, a plurality of main sieve groups are arranged at equal angles at the lower end of the bearing bottom plate, each main sieve group comprises a rotating main plate rotatably connected with the bearing bottom plate, the middle end of the outer side of each rotating main plate is provided with a circulating cavity, the outer end of each rotating main plate is provided with an offset control group, each offset control group comprises a pair of sliding plates slidably clamped with the outer end of the rotating main plates, the inner ends of the outer sides of the sliding plates are fixedly connected with abutting frames, and the outer ends of the upper sides of the abutting frames are fixedly connected with rotating magnetic plates, the front end and the rear end of the lower side of the sliding plate are fixedly connected with sliding clamp frames, the lower end of the sliding plate is provided with a pressing separation group, the pressing separation group comprises a pair of lower clamp rings which are in sliding clamping connection with the lower end of the sliding plate, the outer end of each lower clamp ring is fixedly connected with a pair of sliding clamp blocks which are in sliding clamping connection with the inner end of the sliding clamp frame, the lower end of the inner part of the conveying shell is fixedly connected with a supporting bottom plate, the upper end of the supporting bottom plate is fixedly connected with a plurality of abutting plates which are abutted against the abutting frames at equal angles, the upper end of the supporting bottom plate is fixedly connected with a plurality of separating plates which correspond to the lower clamp rings at equal angles, the inner surface of the lower end of the conveying shell is fixedly connected with a plurality of fixed magnetic plates which correspond to the rotating magnetic plates at equal angles, the pressing deviation control group and the pressing separation group are realized when stones exceeding the standard size exist, so as to drive the main screen group to rotate, open the lower clamp rings, and further transfer and discharge large-size stones, the purposes of improving the crushing efficiency and protecting the machine body are achieved.
Furthermore, the upper circulation pipe penetrates through the upper sub plate and the upper end and the lower end of the bearing bottom plate, the circulation cavity is located right below the upper circulation pipe in a normal state, and the diameter of the inner end of the circulation cavity is equal to that of the inner end of the upper circulation pipe, so that stone can enter conveniently.
Further, rotate mainboard outer end surface fixedly connected with and go up the shrouding, the outer end diameter of going up the shrouding is greater than the inner diameter of circulation chamber, can in time seal the runner pipe lower extreme after main sieve group rotates, avoids the follow-up other bold building stones to flow out.
Furthermore, the front end and the rear end of the rotating main plate are fixedly connected with a pair of extension springs, and the lower ends of the extension springs are fixedly connected with the lower end of the inner side of the sliding plate, so that the offset control group and the pressure separation group can automatically rebound.
Further, butt frame lower extreme is the L type, and the butt board is the arc structure of slope, prevents to obstruct the rotation of main sieve group, skew control group, pressure separation group.
Furthermore, a plurality of lower through pipes corresponding to the circulation cavity are fixedly connected to the inner end of the supporting bottom plate at equal angles, the lower through pipes penetrate through the upper end and the lower end of the supporting bottom plate, and the diameter of the inner ends of the lower through pipes is larger than that of the inner ends of the circulation cavity, so that large stones can be conveniently discharged.
Furthermore, the upper surface of the middle end of the supporting bottom plate is fixedly connected with a rotating table, the rotating table is rotatably connected with the inner end of the rotating main plate, and the rotating stability of the main sieve group can be improved.
Furthermore, the outer end of the sliding clamping block is fixedly connected with a compression spring, the compression spring is fixedly connected with the inner end of the sliding clamping frame, the lower clamping ring can automatically rebound, and the stone is prevented from pushing the lower clamping ring open.
Furthermore, the equal-angle clamps at the inner ends of the supporting bottom plates are provided with a plurality of remaining through holes, the inner ends of the remaining through holes are slidably clamped with sliding pipes, the outer ends of the sliding pipes are fixedly connected with a pair of pressing plates slidably clamped with the remaining through holes, the lower ends of the pressing plates are fixedly connected with return springs fixedly connected with the remaining through holes, stone output is facilitated, and downward movement of the main sieve group, the deviation control group and the pressing separation group is prevented from being blocked.
Furthermore, the lower clamping ring is of a funnel-shaped structure, the rear end of the inner side of the lower clamping ring is of an arc-shaped structure, large stones can be accurately blocked, and the separating plate can be guaranteed to push the lower clamping ring outwards in time.
Compare in prior art, the advantage of this application lies in:
(1) When stones exceeding the standard size exist, the offset control group and the separation group are pressed, so that the main sieve group is driven to rotate, the lower clamping ring is opened, the stones with large sizes are transferred and discharged, and the aims of improving the crushing efficiency and protecting the machine body are fulfilled.
(2) The upper circulation pipe penetrates through the upper sub plate and the upper end and the lower end of the bearing bottom plate, the circulation cavity is located right below the upper circulation pipe in a normal state, and the diameter of the inner end of the circulation cavity is equal to that of the inner end of the upper circulation pipe, so that stone can enter conveniently.
(3) Rotate mainboard outer end surface fixed connection and go up the shrouding, the outer end diameter of going up the shrouding is greater than the inner diameter of runner cavity, can in time seal the runner pipe lower extreme after main sieve group rotates, avoids the follow-up other bold building stones to flow out.
(4) The front end and the rear end of the rotating main plate are fixedly connected with a pair of extension springs, and the lower ends of the extension springs are fixedly connected with the lower end of the inner side of the sliding plate, so that the offset control group and the pressure separation group can automatically rebound.
(5) The butt frame lower extreme is the L type, and the butt board is the arc structure of slope, prevents to obstruct the rotation of main sieve group, skew control group, pressure separation group.
(6) The inner equal-angle fixed connection of supporting baseplate has a plurality of lower siphunculus corresponding with the circulation chamber, and lower siphunculus runs through the upper and lower end of supporting baseplate, and the inner diameter of lower siphunculus is greater than the inner diameter of circulation chamber, conveniently discharges the bold building stones.
(7) Fixed surface is connected with the swivel table on the supporting baseplate middle-end, and the swivel table rotates with the rotation mainboard inner to be connected, can improve main sieve group pivoted stability.
(8) The outer end of the sliding clamping block is fixedly connected with a compression spring, and the compression spring is fixedly connected with the inner end of the sliding clamping frame, so that the lower clamping ring can automatically rebound, and the lower clamping ring is prevented from being pushed away by stone.
(9) The equal angle card in supporting baseplate inner is equipped with a plurality of through-holes of keeping somewhere, keeps somewhere that through-hole inner slip joint has a slip pipe, slip outside of tubes end fixedly connected with a pair of and keep somewhere the pressing plate of through-hole slip joint, pressing plate lower extreme fixedly connected with and the answer spring of keeping somewhere through-hole fixed connection make things convenient for the output of building stones, and avoid hindering the lower move down of main sieve group, skew control group, pressure separation group.
(10) The lower clamping ring is of a funnel-shaped structure, the rear end of the inner side of the lower clamping ring is of an arc-shaped structure, large stones can be accurately blocked, and the separating plate can be guaranteed to push the lower clamping ring outwards in time.
Drawings
FIG. 1 is a schematic front cross-sectional view of a delivery housing of the present application;
FIG. 2 is a schematic view of the external structure of the main body of the present application;
FIG. 3 is a schematic view of an exploded structure of the support floor and primary screen groups and support floor of the present application;
FIG. 4 is a schematic front view of the connection between the main screen group and the rotary table of the present application;
FIG. 5 is a schematic illustration of a normal front view of the offset control group and primary screen group junction of the present application;
FIG. 6 is a schematic view of a connection between a deflection control group and a main screen group in a screening state according to the present application;
fig. 7 is a right-view structural schematic diagram of a joint of the sliding clamping block and the sliding clamping frame according to the present application;
FIG. 8 is a bottom view of the lower clip ring of the present application;
FIG. 9 is a front view of the support base of the present application;
fig. 10 is a front sectional view schematically illustrating the connection between the support base plate and the sliding tube according to the present invention.
The numbering in the figures illustrates:
the device comprises a conveying shell 1, an upper branch plate 2, an upper flow pipe 3, a 4-bearing bottom plate, a 5-main sieve group, a 501-rotating main plate, a 502-flow cavity, a 503-upper sealing plate, a 504-extension spring, a 6-offset control group, a 601-sliding plate, a 602-abutting frame, a 603-rotating magnetic plate, a 604-sliding clamping frame, a 7-pressing separation group, a 701-lower clamping ring, a 702-sliding clamping block, a 703-compression spring, an 8-supporting bottom plate, a 9-lower flow pipe, a 10-rotating table, an 11-abutting plate, a 12-separation plate, a 13-sliding pipe, a 14-fixing magnetic plate, a 15-pressing plate, a 16-remaining through hole and a 17-restoring spring.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments in the present application belong to the protection scope of the present application.
Example 1:
the application discloses high-efficient feed mechanism for mine breaker, please refer to fig. 1-3, including carrying shell 1, carry shell 1 upside inner fixedly connected with go up and divide board 2, go up divide 2 inner equal angle fixedly connected with a plurality of upper circulation pipes 3 of board, 3 lower extreme fixedly connected with of upper circulation pipe accepts bottom plate 4, accept 4 lower extremes of bottom plate equal angle and install a plurality of main sieve group 5, main sieve group 5 includes and accepts bottom plate 4 rotation mainboard 501 of being connected, the circulation chamber 502 has been seted up to rotation mainboard 501 outside middle-end, upper circulation pipe 3 runs through upper branch board 2, accept the upper and lower extreme of bottom plate 4, circulation chamber 502 normality is located under upper circulation pipe 3, and the inner diameter of circulation chamber 502 equals with the inner diameter of upper circulation pipe 3, make things convenient for the entering of building stones, it installs skew control group 6 to rotate mainboard 501 outer end, pressure-moving separation group 7 is installed to sliding plate 601 lower extreme, carry shell 1 inside lower extreme fixedly connected with supporting baseplate 8.
Referring to fig. 4-6, the offset control group 6 includes a pair of sliding plates 601 slidably engaged with the outer ends of the rotating main plate 501, a pair of extension springs 504 are fixedly connected to the front and rear ends of the rotating main plate 501, the lower ends of the extension springs 504 are fixedly connected to the inner lower end of the sliding plates 601, so as to allow the offset control group 6 and the pressure separation group 7 to automatically rebound, an abutting frame 602 is fixedly connected to the outer end of the sliding plate 601, the lower end of the abutting frame 602 is L-shaped, and the abutting plate 11 is an inclined arc structure, so as to prevent the main screen group 5, the offset control group 6 and the pressure separation group 7 from being obstructed from rotating, a rotating magnetic plate 603 is fixedly connected to the outer end of the upper side of the abutting frame 602, and sliding clamp frames 604 are fixedly connected to the front and rear ends of the lower side of the sliding plate 601.
Referring to fig. 7-8, the pressing separation group 7 includes a pair of lower clamping rings 701 slidably engaged with the lower end of the sliding plate 601, the lower clamping rings 701 are funnel-shaped, the inner rear end of the lower clamping rings 701 is arc-shaped, so as to accurately block large stones, and ensure that the separating plate 12 can push the lower clamping rings 701 outward in time, the outer ends of the lower clamping rings 701 are fixedly connected with a pair of sliding blocks 702 slidably engaged with the inner end of the sliding clamp frame 604, the outer ends of the sliding blocks 702 are fixedly connected with compression springs 703, the compression springs 703 are fixedly connected with the inner end of the sliding clamp frame 604, so as to allow the lower clamping rings 701 to automatically rebound, and prevent stones from pushing the lower clamping rings 701 open.
Referring to fig. 1-6, an upper sealing plate 503 is fixedly connected to an outer end of the rotating main plate 501, an outer end diameter of the upper sealing plate 503 is larger than an inner end diameter of the circulation cavity 502, and can seal a lower end of the upper circulation pipe 3 in time after the main screen group 5 rotates, so as to prevent other large stones from flowing out subsequently, a plurality of abutting plates 11 abutting against the abutting frame 602 are fixedly connected to an upper end of the supporting base plate 8 at equal angles, a plurality of separating plates 12 corresponding to the lower clamping ring 701 are fixedly connected to an upper end of the supporting base plate 8 at equal angles, and a plurality of fixed magnetic plates 14 corresponding to the rotating magnetic plates 603 are fixedly connected to an inner surface of a lower end of the conveying housing 1 at equal angles.
Referring to fig. 1-9, the inner end of the supporting bottom plate 8 is fixedly connected with a plurality of lower through pipes 9 corresponding to the flow cavities 502 at equal angles, the lower through pipes 9 penetrate through the upper and lower ends of the supporting bottom plate 8, the inner end diameter of the lower through pipes 9 is larger than that of the flow cavities 502, large stones can be conveniently discharged, the upper surface of the middle end of the supporting bottom plate 8 is fixedly connected with a rotating table 10, and the rotating table 10 is rotatably connected with the inner end of the rotating main plate 501, so that the rotating stability of the main sieve set 5 can be improved.
Referring to fig. 9-10, a plurality of remaining through holes 16 are formed in the inner end of the supporting base plate 8 in an equiangular manner, a sliding pipe 13 is slidably engaged with the inner end of the remaining through holes 16, a pair of pressing plates 15 slidably engaged with the remaining through holes 16 are fixedly connected to the outer end of the sliding pipe 13, and a return spring 17 fixedly connected with the remaining through holes 16 is fixedly connected to the lower end of the pressing plates 15, so that the output of stones is facilitated, and the main screen group 5, the offset control group 6 and the pressing separation group 7 are prevented from being hindered from moving downward.
Referring to fig. 1-10, before crushing stone, the device needs to be installed above a cone crusher, during crushing, pre-divided stone is continuously conveyed to the position right above a conveying shell 1 through a conveyor belt and other devices, the stone enters a circulation cavity 502 through an upper circulation pipe 3, then is discharged through a lower clamping ring 701, a sliding pipe 13 and a retention through hole 16 in sequence and enters the cone crusher, during the process, if the stone with an oversize enters, the stone is blocked by the lower clamping ring 701, so that a lower pressure is applied to the lower clamping ring 701, a deviation control group 6 and a pressure separation group 7 are pressed and moved downwards, meanwhile, under the action of a fixed magnetic plate 14 on a rotating magnetic plate 603, a main sieve group 5, a deviation control group 6 and the pressure separation group 7 rotate anticlockwise, then the lower clamping ring 701 is pushed by a separation plate 12, the stone in the circulation cavity 502 is discharged through the lower flow plate 9, and when the crushing is finished, an operator performs a series of pre-divided stone again, and then the stone is automatically separated into small stone blocks, and the stone is discharged through the circulation cavity.
The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions or changes according to the technical solutions and modifications of the present application should be covered by the scope of the present application.
Claims (10)
1. A high-efficiency feeding mechanism for a mine crusher comprises a conveying shell (1) and is characterized in that an upper dividing plate (2) is fixedly connected to the inner end of the upper side of the conveying shell (1), a plurality of upper circulation pipes (3) are fixedly connected to the inner end of the upper dividing plate (2) at equal angles, a receiving bottom plate (4) is fixedly connected to the lower end of each upper circulation pipe (3), a plurality of main sieve groups (5) are mounted at the lower end of the receiving bottom plate (4) at equal angles, each main sieve group (5) comprises a rotating main plate (501) rotatably connected with the receiving bottom plate (4), a circulation cavity (502) is formed in the middle end of the outer side of the rotating main plate (501), an offset control group (6) is mounted at the outer end of the rotating main plate (501), skew control group (6) include a pair of with slide plate (601) that rotate mainboard (501) outer end slip joint, inner fixedly connected with butt frame (602) in slide plate (601) outside, butt frame (602) upside outer end fixedly connected with rotates magnetic sheet (603), equal fixedly connected with slip card frame (604) in both ends around slide plate (601) downside, pressure-actuated separation group (7) is installed to slide plate (601) lower extreme, pressure-actuated separation group (7) include a pair of lower clamp ring (701) with slide plate (601) lower extreme slip joint, clamp ring (701) outer end fixedly connected with a pair of slip joint with slip card frame (604) inner slip joint down The clamping block (702), carry inside lower extreme fixedly connected with supporting baseplate (8) of shell (1), angular fixedly connected with a plurality of butt boards (11) with butt frame (602) looks butt such as supporting baseplate (8) upper end, angular fixedly connected with a plurality of stripper plates (12) corresponding with lower clamping ring (701) such as supporting baseplate (8) upper end, carry shell (1) lower extreme internal surface and angular fixedly connected with a plurality of and rotate fixed magnetic sheet (14) corresponding with magnetic sheet (603).
2. The high-efficiency feeding mechanism for the mine crusher as recited in claim 1, characterized in that the upper circulating pipe (3) penetrates through the upper end and the lower end of the upper sub-plate (2) and the receiving bottom plate (4), the circulating cavity (502) is normally positioned right below the upper circulating pipe (3), and the diameter of the inner end of the circulating cavity (502) is equal to that of the inner end of the upper circulating pipe (3).
3. The high-efficiency feeding mechanism for the mine crusher as claimed in claim 2, wherein an upper sealing plate (503) is fixedly connected to the outer surface of the outer end of the rotating main plate (501), and the diameter of the outer end of the upper sealing plate (503) is larger than that of the inner end of the circulation cavity (502).
4. The efficient feeding mechanism for the mine crusher as recited in claim 1, characterized in that a pair of extension springs (504) are fixedly connected to the front and rear ends of the rotating main plate (501), and the lower ends of the extension springs (504) are fixedly connected to the inner lower end of the sliding plate (601).
5. The high-efficiency feeding mechanism for the mine crusher as claimed in claim 1, characterized in that the lower end of the abutting frame (602) is L-shaped, and the abutting plate (11) is of an inclined arc structure.
6. The efficient feeding mechanism for the mine crusher as recited in claim 1, characterized in that a plurality of lower through pipes (9) corresponding to the circulation cavities (502) are fixedly connected to the inner end of the supporting bottom plate (8) at equal angles, the lower through pipes (9) penetrate through the upper and lower ends of the supporting bottom plate (8), and the diameter of the inner end of each lower through pipe (9) is larger than that of the inner end of each circulation cavity (502).
7. The high-efficiency feeding mechanism for the mine crusher as claimed in claim 1, wherein the upper surface of the middle end of the supporting bottom plate (8) is fixedly connected with a rotating platform (10), and the rotating platform (10) is rotatably connected with the inner end of the rotating main plate (501).
8. The efficient feeding mechanism for the mine crusher as recited in claim 1, characterized in that a compression spring (703) is fixedly connected to an outer end of the sliding fixture block (702), and the compression spring (703) is fixedly connected to an inner end of the sliding fixture frame (604).
9. The efficient feeding mechanism for the mine crusher as recited in claim 1, wherein a plurality of remaining through holes (16) are arranged at equal angles at the inner end of the supporting bottom plate (8), a sliding pipe (13) is slidably clamped at the inner end of each remaining through hole (16), a pair of pressing plates (15) which are slidably clamped with the remaining through holes (16) are fixedly connected at the outer ends of the sliding pipes (13), and a return spring (17) which is fixedly connected with the remaining through holes (16) is fixedly connected at the lower ends of the pressing plates (15).
10. The efficient feeding mechanism for the mine crusher as recited in claim 1, characterized in that the lower clamping ring (701) is of a funnel-shaped structure, and the rear end of the inner side of the lower clamping ring (701) is of an arc-shaped structure.
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| CN202211503696.0A CN115722330B (en) | 2022-11-28 | 2022-11-28 | Efficient feeding mechanism for mine crusher |
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| CN111203304A (en) * | 2020-03-13 | 2020-05-29 | 广东立伟达矿业有限公司 | Powder mill for preparing calcium carbonate powder |
| CN111841857A (en) * | 2020-07-16 | 2020-10-30 | 浙江安盛爆破工程有限公司 | Crushing system of mine building stones |
| CN112403570A (en) * | 2020-10-30 | 2021-02-26 | 重庆贻晨兴工业设计有限责任公司 | Conical waste heat collecting crusher and using method thereof |
| CN113477299A (en) * | 2021-06-24 | 2021-10-08 | 易县腾辉矿产建材有限公司 | Multistage accurate breaker of mine building stones |
| CN113441254A (en) * | 2021-09-01 | 2021-09-28 | 徐州紫聚石化设备有限公司 | Automatic crushing and grinding processing system for calcium carbonate preparation |
| CN113560018A (en) * | 2021-09-18 | 2021-10-29 | 江苏卓维矿业科技有限公司 | Automatic negative pressure type dust collecting and dust falling pseudo-elastic progressive crushing ore screening machine |
| CN216538778U (en) * | 2021-11-08 | 2022-05-17 | 佛山市三水区大塘污水处理有限公司 | Crushing and screening device |
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