CN216631564U - Anti-blocking vibrating screen for coal separator - Google Patents
Anti-blocking vibrating screen for coal separator Download PDFInfo
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- CN216631564U CN216631564U CN202220057292.2U CN202220057292U CN216631564U CN 216631564 U CN216631564 U CN 216631564U CN 202220057292 U CN202220057292 U CN 202220057292U CN 216631564 U CN216631564 U CN 216631564U
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Abstract
An anti-blocking vibrating screen for a coal separator belongs to the technical field of coal mines. Including shell (2), its characterized in that: a group of screens are arranged in the shell (2) from top to bottom: an upper screen (5) and a lower screen (7), wherein a driving mechanism (8) which is simultaneously connected with the upper screen (5) and the lower screen (7) is arranged in the shell (2); the surface of the shell (2) is provided with a feed inlet (1), an upper discharge hole (3) and a lower discharge hole (9), the upper end of the upper screen (5) is butted with the feed inlet (1) inside the shell (2), and the lower ends of the upper screen (5) and the lower screen (7) are butted with the upper discharge hole (3) and the lower discharge hole (9) respectively. In this coal dressing machine is with preventing stifled formula shale shaker, through setting up screen cloth and lower screen cloth to through actuating mechanism drive simultaneously and go up the screen cloth and the vibration of screen cloth down, carry out the secondary screening to the colliery, avoided the coal cinder to lead to size not uniform and cause the jam to the screen cloth.
Description
Technical Field
An anti-blocking vibrating screen for a coal separator belongs to the technical field of coal mines.
Background
When a coal mine is produced, coal is generally required to be screened and processed into clean coal meeting the quality requirements of customers, and a vibrating screen is a common tool for screening coal in the prior art. At present, the coal mine is usually screened by rolling down the coal mine from a vibrating screen, and due to different sizes of coal, the coal mine can block a screen in the screening process, so that the screening effect is poor.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: overcome prior art's not enough, provide one kind through setting up screen cloth and lower screen cloth to through actuating mechanism simultaneous drive screen cloth and lower screen cloth vibration, carry out the secondary screening to the coal cinder, avoided the coal cinder to cause the stifled formula shale shaker of preventing of coal dressing machine of jam to the screen cloth because of not of uniform size.
The technical scheme adopted by the utility model for solving the technical problems is as follows: this coal dressing machine is with preventing stifled formula shale shaker, including the shell, its characterized in that: a group of screens are arranged in the shell from top to bottom: the device comprises an upper screen and a lower screen, wherein the size of the screen hole of the upper screen is larger than that of the screen hole of the lower screen, a driving mechanism for driving the upper screen and the lower screen to vibrate is arranged in a shell, and the driving mechanism is simultaneously connected with the upper screen and the lower screen;
be provided with the feed inlet at the top surface of shell, seted up two discharge gates on two terminal surfaces that the shell is relative: the upper end of the upper screen is butted with the feed inlet inside the shell, and the lower ends of the upper screen and the lower screen are butted with the upper discharge port and the lower discharge port respectively.
Preferably, the driving mechanism comprises a driving shaft, a driving wheel is coaxially fixed at the end part of the driving shaft, a link mechanism is hinged on the end surface of the driving wheel, and the other end of the link mechanism is hinged with the upper screen and the lower screen.
Preferably, a driving wheel is coaxially fixed at each end of the driving shaft, and a link mechanism is hinged to the outer end faces of the two driving wheels.
Preferably, the link mechanism comprises a driving link and a group of driven links: the driving device comprises an upper driven connecting rod and a lower driven connecting rod, one end of the driving connecting rod is hinged to the outer end face of the driving wheel, the other end of the driving connecting rod is hinged to the upper driven connecting rod and the lower driven connecting rod respectively, and the other ends of the upper driven connecting rod and the lower driven connecting rod are hinged to the side portions of the upper screen and the lower screen respectively.
Preferably, the inner side of the driving connecting rod is rotatably connected with a connecting block, the upper end and the lower end of the connecting block are respectively provided with an opening, the upper driven connecting rod is hinged in the opening at the upper end of the connecting block, and the lower driven connecting rod is hinged in the opening at the lower end of the connecting block.
Preferably, the inner walls of the two end surfaces of the shell are provided with rotating shaft holes, and the two ends of the driving shaft protrude out of the outer end surfaces of the driving wheels at the two ends and are arranged in the corresponding rotating shaft holes; one of the rotating shaft holes is a through hole, and the driving shaft penetrates through the rotating shaft hole and then extends to the outside of the shell.
Preferably, the outer side of the driving connecting rod is rotatably connected with a sliding block, the inner walls of the two end faces of the shell are provided with horizontal transverse sliding grooves, and the sliding block is arranged in the corresponding transverse sliding groove.
Preferably, the front end and the rear end of the inner wall of the two end faces of the shell are respectively and vertically provided with a vertical sliding chute, the front end and the rear end of the left side edge and the right side edge of the upper screen mesh and the lower screen mesh are respectively and protrusively provided with a limiting block, and the limiting blocks positioned on the left side and the right side of the upper screen mesh and the lower screen mesh are respectively clamped in the corresponding vertical sliding chutes.
Compared with the prior art, the utility model has the beneficial effects that:
in this stifled formula shale shaker is prevented to coal separator, through setting up upper screen cloth and lower screen cloth of butt joint from top to bottom to through actuating mechanism drive upper screen cloth and lower screen cloth vibration simultaneously, the coal cinder carries out the secondary screening through upper screen cloth and lower screen cloth, and the coal cinder of twice screening is exported through upper discharge mouth and lower discharge mouth respectively, has avoided the coal cinder to lead the size to differ and lead to the fact the jam to the screen cloth.
Drawings
Fig. 1 is a schematic structural view of an anti-blocking vibrating screen for a coal separator.
FIGS. 2 to 3 are schematic views of the internal structure of the anti-blocking vibrating screen for the coal separator.
FIG. 4 is a schematic view of the connection between the anti-blocking vibrating screen driving mechanism and the screen for the coal separator.
FIG. 5 is a schematic view of the connection between the anti-blocking vibrating screen driving mechanism and the screen for the coal separator.
Wherein: 1. the device comprises a feed inlet 2, a shell 3, an upper discharge port 4, a bottom foot 5, an upper screen 6, a vertical chute 7, a lower screen 8, a driving mechanism 9, a lower discharge port 10, a transverse chute 11, a limiting block 12, a driving connecting rod 13, a driving shaft 14, an upper driven connecting rod 15, a connecting block 16, a sliding block 17, a lower driven connecting rod 18 and a driving wheel.
Detailed Description
Fig. 1 to 5 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 5.
As shown in figure 1, the anti-blocking vibrating screen for the coal separator comprises a shell 2, wherein four corners of the bottom of the shell 2 are respectively provided with a bottom foot 4. A feed inlet 1 is formed in one end of the top of the shell 2, and in the anti-blocking vibrating screen for the coal separator, one side of the feed inlet 1 is arranged on the rear side of the anti-blocking vibrating screen for the coal separator. Referring to fig. 2, an upper discharge port 3 and a lower discharge port 9 are respectively formed on the front end surface and the rear end surface of the housing 2, the upper discharge port 3 is formed in the middle of the front end surface of the housing 2, and the lower discharge port 9 is formed in the lower portion of the rear end surface of the housing 2.
With further reference to fig. 3, two screens are arranged from top to bottom inside the housing 2: an upper screen 5 and a lower screen 7, wherein the upper screen 5 and the lower screen 7 are both arranged in the shell 2 in an inclined way. Wherein the upper end of the upper screen 5 is positioned right below the feed inlet 1 and is butted with the feed inlet 1, and the lower end of the upper screen 5 extends to the upper discharge port 3 in an inclined downward direction; the upper end of the lower screen 7 is positioned at the inner side of the upper discharge port 3 and below the lower end of the upper screen 5, and the lower end of the lower screen 7 extends to the lower discharge port 9 in an inclined downward direction. The size of the surface mesh of the upper screen 5 is larger than that of the lower screen 7.
It can be known from the above that, in the inside of shell 2, the upper end of upper screen 5 is located the top of rear end, and the lower extreme of lower screen 7 is located the below of rear end, is provided with actuating mechanism 8 in the space between upper screen 5 upper end and lower screen 7 lower extreme, and actuating mechanism 8 is with upper screen 5 and lower screen 7 swing joint simultaneously, and actuating mechanism 8 drives upper screen 5 and lower screen 7 and the simultaneous luffing motion in shell 2 when moving. The front end and the rear end of the inner wall of the left end face and the right end face of the shell 2 are respectively and vertically provided with a vertical sliding groove 6, the front end and the rear end of the left side edge and the rear end of the right side edge of the upper screen 5 and the lower screen 7 are respectively and protrudingly provided with a limiting block 11, the limiting blocks 11 positioned on the left side and the right side of the upper screen 5 and the lower screen 7 are respectively clamped in the corresponding vertical sliding grooves 6, when the driving mechanism 8 drives the upper screen 5 and the lower screen 7 to swing up and down, the limiting blocks 11 on the two sides move up and down in the corresponding vertical sliding grooves 6, and the limitation on the upper screen 5 and the lower screen 7 is realized.
As shown in fig. 4 to 5, the driving mechanism 8 includes a driving shaft 13, a driving wheel 18 is coaxially fixed at each of two ends of the driving shaft 13, the driving shaft 13 protrudes from an outer end surface of the driving wheel 18, a rotating shaft hole is formed in an inner wall of each of left and right end surfaces of the housing 2, and both ends of the driving shaft 13 protrude from the outer end surface of the driving wheel 18 and are then fitted into the rotating shaft hole in the inner wall of the housing 2. One of the two rotating shaft holes arranged on the left and right end surfaces of the shell 2 is a through hole penetrating through the shell 2, and the corresponding end of the driving shaft 13 further penetrates through the rotating shaft hole and then extends to the outside of the shell 2 to be connected with an external power mechanism (such as a motor) so as to drive the two driving wheels 18 to rotate inside the shell 2 through the driving shaft 13.
Two driving connecting rods 12 are respectively arranged on the two driving wheels 18, and the rear ends of the two driving connecting rods 12 are respectively hinged on the outer end faces of the corresponding driving wheels 18. The front end of the driving connecting rod 12 is rotatably connected with a sliding block 16 and a connecting block 15, wherein the two sliding blocks 16 are respectively positioned at the outer side of the corresponding driving connecting rod 12, and the two connecting blocks 15 are oppositely positioned at the inner side of the corresponding driving connecting rod 12. The middle parts of the left and right end surfaces of the shell 2 are respectively transversely provided with a transverse sliding groove 10, and the sliding blocks 16 at the two sides are clamped in the corresponding transverse sliding grooves 10.
An opening is respectively arranged at the upper end and the lower end of each connecting block 15, an upper driven connecting rod 14 is respectively hinged in the openings at the upper ends of the connecting blocks 15 at two sides, and a lower driven connecting rod 17 is respectively hinged in the openings at the lower ends of the connecting blocks 15 at two sides. The other end of the upper driven connecting rod 14 hinged in the connecting blocks 15 at the two sides extends upwards to the upper screen 5 and is respectively hinged in the middle of the two side surfaces of the upper screen 5; the other end of the lower driven connecting rod 17 hinged in the connecting blocks 15 at the two sides extends downwards to the lower screen 7 and is respectively hinged in the middle of the two side surfaces of the lower screen 7.
The specific working process and working principle are as follows:
a drive mechanism 8 located outside the housing 2 drives a drive wheel 18 via a drive shaft 13 connected thereto to rotate back and forth within the housing 2. The hinged position of the driving connecting rod 12 and the driving wheel 18 is taken as an original point for explanation, when the original point position moves downwards from the top, the front end of the driving connecting rod 12 moves forwards under the action of the driving wheel 18, at the moment, the sliding blocks 16 on the two sides move forwards in the transverse sliding groove 10 and drive the upper screen mesh 5 and the lower screen mesh 7 to move through the upper driven connecting rod 14 and the lower driven connecting rod 17, at the moment, the lower end of the upper screen mesh 5 and the upper end of the lower screen mesh 7 gradually approach, when the original point position rotates to the same horizontal plane with the driving shaft 13, the sliding block 16 is positioned on the foremost side, and at the moment, the distance between the lower end of the upper screen mesh 5 and the upper end of the lower screen mesh 7 is the minimum.
The original point continues to rotate downwards, the front end of the driving connecting rod 12 moves backwards under the action of the driving wheel 18, the sliding blocks 16 on the two sides move backwards in the transverse sliding groove 10 at the moment and drive the upper screen mesh 5 and the lower screen mesh 7 to move through the upper driven connecting rod 14 and the lower driven connecting rod 17, the lower end of the upper screen mesh 5 and the upper end of the lower screen mesh 7 are gradually far away from each other at the moment, when the original point rotates to the lowest point, the sliding blocks 16 are located on the last side, and the distance between the lower end of the upper screen mesh 5 and the upper end of the lower screen mesh 7 is the largest at the moment. The driving mechanism 8 positioned outside the shell 2 drives the driving shaft 13 to rotate reversely, the original point position is in the process of moving from the lowest point to the highest point, and the lower end of the upper screen 5 and the upper end of the lower screen 7 gradually approach and then gradually leave again, so that the process is repeated.
Therefore, in the reciprocating rotation process of the driving shaft 13, the upper screen 5 and the lower screen 7 swing up and down in the shell 2, and at the moment, the limiting blocks 11 on the two sides of the upper screen 5 and the lower screen 7 move up and down in the vertical sliding grooves 6 on the two sides.
The coal blocks are firstly screened on the surface of the upper screen 5 after passing through the feeding port 1, and in the process of up-and-down swinging of the upper screen 5, the coal blocks larger than meshes on the surface of the upper screen 5 gradually move to the upper discharging port 3 and are finally output from the upper discharging port 3. The coal blocks smaller than the meshes of the surface of the upper screen 5 fall into the surface of the lower screen 7 through the meshes of the upper screen 5, and secondary screening is performed on the surface of the lower screen 7. In the process of the up-and-down swing of the lower screen 7, the coal blocks larger than the meshes on the surface of the lower screen 7 gradually move to the lower discharge hole 9 and are finally output from the lower discharge hole 9. Coal pieces smaller than the surface mesh of the lower screen 7 pass through the mesh of the lower screen 7 and fall to the bottom of the housing 2.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a coal dressing machine is with preventing stifled formula shale shaker, includes shell (2), its characterized in that: a group of screens are arranged in the shell (2) from top to bottom: the vibrating screen comprises an upper screen (5) and a lower screen (7), wherein the size of the screen hole of the upper screen (5) is larger than that of the screen hole of the lower screen (7), a driving mechanism (8) for driving the upper screen (5) and the lower screen (7) to vibrate is arranged inside a shell (2), and the driving mechanism (8) is simultaneously connected with the upper screen (5) and the lower screen (7);
be provided with feed inlet (1) at the top surface of shell (2), seted up two discharge gates on two relative terminal surfaces of shell (2): the upper end of the upper screen (5) is in butt joint with the feed inlet (1) in the shell (2), and the lower ends of the upper screen (5) and the lower screen (7) are in butt joint with the upper discharge port (3) and the lower discharge port (9) respectively.
2. The anti-blocking vibrating screen for the coal separator according to claim 1, characterized in that: the driving mechanism (8) comprises a driving shaft (13), a driving wheel (18) is coaxially fixed at the end part of the driving shaft (13), a connecting rod mechanism is hinged on the end surface of the driving wheel (18), and the other end of the connecting rod mechanism is hinged with the upper screen (5) and the lower screen (7).
3. The anti-blocking vibrating screen for the coal separator according to claim 2, characterized in that: two ends of the driving shaft (13) are respectively and coaxially fixed with a driving wheel (18), and the outer end surfaces of the two driving wheels (18) are respectively hinged with a connecting rod mechanism.
4. The anti-blocking vibrating screen for the coal separator according to claim 2 or 3, characterized in that: the link mechanism comprises a driving link (12) and a group of driven links: the screen cloth screening device comprises an upper driven connecting rod (14) and a lower driven connecting rod (17), one end of a driving connecting rod (12) is hinged to the outer end face of a driving wheel (18), the other end of the driving connecting rod (12) is hinged to the upper driven connecting rod (14) and the lower driven connecting rod (17) respectively, and the other ends of the upper driven connecting rod (14) and the lower driven connecting rod (17) are hinged to the side portions of an upper screen cloth (5) and a lower screen cloth (7) respectively.
5. The anti-blocking vibrating screen for the coal separator according to claim 4, wherein: the inner side of the driving connecting rod (12) is rotatably connected with a connecting block (15), the upper end and the lower end of the connecting block (15) are respectively provided with an opening, the upper driven connecting rod (14) is hinged in the opening at the upper end of the connecting block (15), and the lower driven connecting rod (17) is hinged in the opening at the lower end of the connecting block (15).
6. The anti-blocking vibrating screen for the coal separator according to claim 3, characterized in that: rotating shaft holes are formed in the inner walls of the two end faces of the shell (2), and the two ends of the driving shaft (13) protrude out of the outer end faces of the driving wheels (18) at the two ends and are arranged in the corresponding rotating shaft holes; one rotating shaft hole is a through hole, and the driving shaft (13) penetrates through the rotating shaft hole and then extends to the outside of the shell (2).
7. The anti-blocking vibrating screen for the coal separator according to claim 5, characterized in that: the outer side of the driving connecting rod (12) is rotatably connected with a sliding block (16), the inner walls of the two end surfaces of the shell (2) are provided with horizontal transverse sliding chutes (10), and the sliding block (16) is arranged in the corresponding transverse sliding chute (10).
8. The anti-blocking vibrating screen for the coal separator according to claim 1, characterized in that: the front end and the rear end of the inner wall of the two end faces of the shell (2) are respectively and vertically provided with a vertical sliding chute (6), the front end and the rear end of the left side edge and the right side edge of the upper screen (5) and the lower screen (7) are respectively and protrusively provided with a limiting block (11), and the limiting blocks (11) positioned on the left side and the right side of the upper screen (5) and the lower screen (7) are respectively clamped in the corresponding vertical sliding chutes (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220057292.2U CN216631564U (en) | 2022-01-11 | 2022-01-11 | Anti-blocking vibrating screen for coal separator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220057292.2U CN216631564U (en) | 2022-01-11 | 2022-01-11 | Anti-blocking vibrating screen for coal separator |
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| Publication Number | Publication Date |
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| CN216631564U true CN216631564U (en) | 2022-05-31 |
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| CN202220057292.2U Active CN216631564U (en) | 2022-01-11 | 2022-01-11 | Anti-blocking vibrating screen for coal separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283266A (en) * | 2022-08-04 | 2022-11-04 | 国能神东煤炭集团有限责任公司 | Coal separator |
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- 2022-01-11 CN CN202220057292.2U patent/CN216631564U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115283266A (en) * | 2022-08-04 | 2022-11-04 | 国能神东煤炭集团有限责任公司 | Coal separator |
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