CN218775169U - Screening device for coal processing - Google Patents

Abstract

The utility model discloses a sieving mechanism for coal processing, including the screening case, there are first screening board and second screening board in the inside of screening case through buffering subassembly swing joint, one side fixedly connected with motor of screening case, the output fixedly connected with pivot of motor makes this device can filter coal through first screening board and second screening board to utilize vibrations mechanism to carry out the vibrations of regularity to first screening board and second screening board, thereby can avoid first screening board and second screening board to take place blocking phenomenon when screening coal, and then improved the screening efficiency of this device greatly, and make this device can utilize suction mechanism to inhale the gas storage incasement portion with the dust that screens incasement portion when vibrations are screened, thereby can cause the damage to staff's health around in order to avoid the dust that the four directions were raised, and then improved the safety in utilization of this device greatly.

Description

Screening device for coal processing

Technical Field

The utility model relates to a coal processing technology field specifically is a sieving mechanism for coal processing.

Background

Coal is a solid combustible mineral formed by ancient plants buried underground and undergoing complex biochemical and physicochemical changes, is known as black gold by people and is industrial food, is one of main energy sources used in the human world since the eighteenth century, enters the twenty-first century, has great value as compared with the prior art, but is also one of indispensable energy sources for production and life of human beings within a long period of time at present and in the future after all, the supply of coal is also related to the stability of development of the industry of China and even the aspects of the whole society, the supply safety problem of coal is also the most important ring in the energy safety of China, the coal can be put into use after being processed, and the screening of coal materials is to perform subsequent processing after being classified according to the size of the coal.

Coal processing needs to be screened to ensure processing quality, certain defects exist in the existing coal screening when the screening device is used, for example, chinese patent with patent application number of 202121227989.1 is used for the screening device for coal processing, the patent screens coal materials through the up-and-down movement of a screen frame, continuous noise generated in the vibration process is effectively avoided, the condition of bad influence on a machine and the surrounding environment is generated, and the screen frame can be flexibly and conveniently installed in a screening box, so that a user can select the screen frames with proper quantity and proper aperture density, the flexibility of the device is effectively improved, meanwhile, in order to ensure that the screen frame cannot be damaged and loosened excessively due to impact and movement, a buffer mechanism which can be disassembled and installed is further arranged in the screening box, the buffer mechanism is positioned between the upper screen frame and the lower screen frame and mutually attached to the screen frames, the elastic acting force of the buffer mechanism can play a good role in buffering protection for the screen frames, but the mode can generate a large amount of dust during screening, thereby seriously affecting the health of surrounding workers, and the body health of the coal processing people is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sieving mechanism for coal processing to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a sieving mechanism for coal processing, includes the screening case, there are first screening board and second screening board in the inside of screening case through buffering subassembly swing joint, one side fixedly connected with motor of screening case, the output fixedly connected with pivot of motor, the other end of pivot extends to the inside of screening case and a plurality of roof pressure boards of fixedly connected with, the pivot is connected with air suction mechanism through the synchronizing wheel transmission, the screening case is located one side top fixedly connected with gas storage tank of motor.

Preferably, the buffer assembly comprises a sliding groove arranged on the inner wall of the screening box, a protection spring is fixedly connected to the bottom of the inner cavity of the sliding groove, and a protection plate is fixedly connected to the top of the protection spring, so that the service life of the device is greatly prolonged.

Preferably, the suction mechanism is including passing through the connecting axle that the synchronizing wheel transmission is connected with the pivot and installing the exhaust chamber in gas storage tank one side, the one end and the screening case of connecting axle rotate to be connected, the other end fixedly connected with semicircle dish gear of connecting axle, the surface of semicircle dish gear is connected with the fly leaf through rack toothing, the one end fixedly connected with piston rod of fly leaf, the one end that the fly leaf was kept away from to the piston rod extends to the inside and the fixedly connected with piston of exhaust chamber, and then has improved the safety in utilization of this device greatly.

Preferably, one side of the air exhaust box extends to the inside of the screening box through a pipeline and is fixedly connected with a dust suction head, the other side of the air exhaust box is fixedly connected with the air storage box through a pipeline, and the two side of the air exhaust box are fixedly connected with one-way valves on the pipelines, so that the dust removal efficiency of the device is greatly improved.

Preferably, the top of screening case has seted up the feed inlet, a plurality of discharge gates have been seted up on the front end surface of screening case to the discharging efficiency of this device has been improved greatly.

Preferably, the front end fixed surface of screening case is connected with the controller, the outer fixed surface of controller is connected with control switch to the practicality of this device has been improved greatly.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a set up motor, pivot, roof pressure board, first screening plate, second screening plate, spout, protection spring and guard plate, make this device can screen coal through first screening plate and second screening plate, and utilize vibration mechanism to carry out regular vibrations to first screening plate and second screening plate, thereby can avoid first screening plate and second screening plate to take place blocking phenomenon when screening coal, and then improved the screening efficiency of this device greatly, in addition still can cushion first screening plate and second screening plate through the buffer module, thereby reduce the impact strength that first screening plate, second screening plate received when shaking from top to bottom, and then greatly improved the life of this device;

2. the utility model discloses still through setting up synchronizing wheel, connecting axle, semicircular disk gear, fly leaf, rack, piston rod, piston, exhaust chamber, pipeline, check valve, gas storage tank and dust absorption head for this device can utilize the suction mechanism to inhale inside the gas storage tank with the dust of screening incasement portion in the vibrations screening, thereby can avoid the dust of four scattered lifts to cause the damage to staff's health on every side, and then improved the safety in utilization of this device greatly.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is an overall elevation view of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

fig. 3 is a schematic view of the internal structure of the suction mechanism of the present invention;

fig. 4 is an enlarged view of fig. 2 a according to the present invention;

in the figure: 1. a screening box; 2. a first screening plate; 3. a second screening plate; 4. a motor; 5. a rotating shaft; 6. a top pressure plate; 7. a synchronizing wheel; 8. a connecting shaft; 9. a half-disc gear; 10. a movable plate; 11. a rack; 12. a piston rod; 13. a piston; 14. an air extraction box; 15. a pipeline; 16. a one-way valve; 17. a gas storage tank; 18. a dust collection head; 19. a feed inlet; 20. a chute; 21. a guard spring; 22. a protection plate; 23. a controller; 24. and (4) discharging a material outlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a screening apparatus for coal processing, including a screening box 1, a first screening plate 2 and a second screening plate 3 movably connected to the inside of the screening box 1 via a buffer assembly, the buffer assembly including a chute 20 formed in the inner wall of the screening box 1, a protection spring 21 fixedly connected to the bottom of the inner cavity of the chute 20, and a protection plate 22 fixedly connected to the top of the protection spring 21, when the first screening plate 2 and the second screening plate 3 are collided by a top pressing plate 6, the first screening plate 2 and the second screening plate 3 will move up and down along the two chutes 20, respectively, when the top pressing plate 6 is separated from the first screening plate 2 and the second screening plate 3, the first screening plate 2 and the second screening plate 3 will quickly recover to their original positions under the action of the protection spring 21, thereby reducing the impact force applied to the first screening plate 2 and the second screening plate 3 during up-down vibration, one side of the screening box 1 is fixedly connected with a motor 4, the output end of the motor 4 is fixedly connected with a rotating shaft 5, the other end of the rotating shaft 5 extends into the screening box 1 and is fixedly connected with a plurality of jacking plates 6, the rotating shaft 5 is connected with an air suction mechanism through a synchronizing wheel 7 in a transmission way, the air suction mechanism comprises a connecting shaft 8 in a transmission way with the rotating shaft 5 through the synchronizing wheel 7 and an air suction box 14 arranged at one side of an air storage box 17, one end of the connecting shaft 8 is rotatably connected with the screening box 1, the other end of the connecting shaft 8 is fixedly connected with a half-disk gear 9, the outer surface of the half-disk gear 9 is connected with a movable plate 10 through a rack 11 in a meshing way, one end of the movable plate 10 is fixedly connected with a piston rod 12, one end of the piston rod 12 far away from the movable plate 10 extends into the air suction box 14 and is fixedly connected with a piston 13, when the half-disk gear 9 rotates, the half-disk gear can drive the movable plate 10 to reciprocate up and down through the meshing connection way with the rack 11, thereby make fly leaf 10 can drive piston rod 12 and be linear reciprocating motion inside extraction box 14, thereby make piston rod 12 can drive piston 13 and do the extraction and insert motion to extraction box 14, and then make extraction box 14 can inhale the dust of screening box 1 inside through dust absorption head 18 and pipeline 15 under the effect of negative pressure and inside gas storage box 17, thereby can avoid the dust that raises up all around to cause the damage to staff's health on every side, screening box 1 is located one side top fixedly connected with gas storage box 17 of motor 4, one side of extraction box 14 extends to screening box 1's inside and fixedly connected with dust absorption head 18 through pipeline 15, the opposite side of extraction box 14 passes through pipeline 15 and gas storage box 17 fixed connection, and equal fixedly connected with check valve 16 on two pipelines 15, utilize the one-way circulation of check valve 16, make the dust can only flow into gas storage box 17 from dust absorption head 18, feed inlet 19 has been seted up at the top of screening box 1, the front end surface of screening box 1 has seted up a plurality of discharge gates 24, make this device can more convenient collect the coal after screening, the front end fixed surface of screening box 1 is connected with the controller 23, the internal surface of this device is controlled through the quick controller 23.

The utility model discloses a theory of operation: when the coal screening machine is used, an operator firstly puts coal into the screening box 1 through the feeding hole 19, then starts the motor 4 through the controller 23, so that the motor 4 drives the synchronizing wheel 7 and the top pressure plate 6 to rotate through the rotating shaft 5, when the top pressure plate 6 rotates, the top pressure plate 6 can collide the first screening plate 2 and the second screening plate 3 regularly due to the fact that the lengths of the top pressure plate 6 at the upper end and the lower end of the rotating shaft 5 are different, when the first screening plate 2 and the second screening plate 3 are collided by the top pressure plate 6, the first screening plate 2 and the second screening plate 3 can move upwards and downwards along the two sliding grooves 20 respectively, when the top pressure plate 6 is separated from the first screening plate 2 and the second screening plate 3, the first screening plate 2 and the second screening plate 3 can restore to the original positions rapidly under the action of the protection spring 21, and therefore the impact force on the first screening plate 2 and the second screening plate 3 during up-down vibration can be reduced, and then the service life of the device is greatly prolonged, and the first screening plate 2 and the second screening plate 3 can be used for double screening of coal, so that the coal can be screened more fully, when the synchronizing wheel 7 rotates, the synchronizing wheel can drive the connecting shaft 8 to rotate, so that the connecting shaft 8 drives the half-disk gear 9 to rotate, when the half-disk gear 9 rotates, the half-disk gear can drive the movable plate 10 to reciprocate up and down through a meshing connection mode with the rack 11, so that the movable plate 10 can drive the piston rod 12 to do linear reciprocating motion inside the air exhaust box 14, so that the piston rod 12 can drive the piston 13 to do suction and insertion motion to the air exhaust box 14, further the air exhaust box 14 can suck dust inside the screening box 1 into the air storage box 17 through the dust suction head 18 and the pipeline 15 under the action of negative pressure, and because the pipeline 15 is provided with the one-way valve 16, therefore, dust can only flow into the air storage box 17 from the dust collection head 18, so that the damage of the dust which is scattered and raised to the body of surrounding workers can be avoided, and the use safety of the device is greatly improved.

Finally, it should be noted that: 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A sieving mechanism for coal processing, includes screening case (1), its characterized in that: the inside of screening case (1) has first screening board (2) and second screening board (3) through buffering subassembly swing joint, one side fixedly connected with motor (4) of screening case (1), the output fixedly connected with pivot (5) of motor (4), the other end of pivot (5) extends to the inside of screening case (1) and a plurality of roof pressure boards of fixedly connected with (6), pivot (5) are connected with air suction mechanism through synchronizing wheel (7) transmission, screening case (1) is located one side top fixedly connected with gas storage tank (17) of motor (4).

2. A screening apparatus for coal processing according to claim 1, wherein: buffer unit is including seting up spout (20) at screening case (1) inner wall, the inner chamber bottom fixedly connected with protection spring (21) of spout (20), the top fixedly connected with guard plate (22) of protection spring (21).

3. A screening apparatus for coal processing according to claim 1, wherein: the suction mechanism is including connecting axle (8) of being connected through synchronizing wheel (7) transmission with pivot (5) and install exhaust box (14) in gas storage box (17) one side, the one end and the screening case (1) of connecting axle (8) rotate to be connected, the other end fixedly connected with semicircle dish gear (9) of connecting axle (8), the surface of semicircle dish gear (9) is connected with fly leaf (10) through rack (11) meshing, the one end fixedly connected with piston rod (12) of fly leaf (10), the one end that fly leaf (10) were kept away from in piston rod (12) extends to the inside and the fixedly connected with piston (13) of exhaust box (14).

4. A screening apparatus for coal processing according to claim 3, wherein: one side of the air suction box (14) extends to the inside of the screening box (1) through a pipeline (15) and is fixedly connected with a dust suction head (18), the other side of the air suction box (14) is fixedly connected with an air storage box (17) through a pipeline (15), and the two pipelines (15) are all fixedly connected with one-way valves (16).

5. A screening apparatus for coal processing according to claim 1, wherein: the top of screening case (1) has seted up feed inlet (19), a plurality of discharge gates (24) have been seted up to the front end surface of screening case (1).

6. A screening apparatus for coal processing according to claim 1, wherein: the front end surface fixed connection of screening case (1) has controller (23), the surface fixed connection of controller (23) has control switch.

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