CN220532197U

CN220532197U - Colliery sieving mechanism for coal mining

Info

Publication number: CN220532197U
Application number: CN202322111400.7U
Authority: CN
Inventors: 王永福; 蒲平武; 周竹峰; 姚胜卿
Original assignee: Safety Technology Center Of Shaanxi Coal Mine Safety Supervision Bureau; Shaanxi Qin'an Coal Mine Safety Technology Service Co ltd; Shaanxi Shanbei Mining Hanjiawan Coal Co ltd
Current assignee: Safety Technology Center Of Shaanxi Coal Mine Safety Supervision Bureau; Shaanxi Qin'an Coal Mine Safety Technology Service Co ltd; Shaanxi Shanbei Mining Hanjiawan Coal Co ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-27
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses a coal mine screening device for coal mine exploitation, which relates to the technical field of coal mine screening, wherein water mist is continuously sprayed above a feed inlet through a water spray port, the surface of a coal mine block is wetted by the water mist, so that coal mine dust is adsorbed on the coal mine block and is not easy to diffuse, a semi-closed state is formed when a cover plate is closed, the coal mine dust is further prevented from spreading into air, the coal mine dust is prevented from being sucked into the lung when a worker works, irreversible damage is caused to the lung, the working environment of operators is improved, a diversion plate is driven to rotate by a rotating motor, the coal mine block fed into the feed inlet is prevented from uniformly falling into the inside of the coal mine block, the coal mine block is prevented from being accumulated, the feed inlet is facilitated to be subjected to subsequent screening work, the coal mine block is more fully screened, and the screening quality of the coal mine block is improved.

Description

Colliery sieving mechanism for coal mining

Technical Field

The utility model relates to the technical field of coal mine screening, in particular to a coal mine screening device for coal mine exploitation.

Background

Coal mines are areas where coal resources are mined in mining areas rich in coal, are generally divided into underground coal mines and open air coal mines, coal mines are the most main solid fuels, are one type of combustible organic rock, are formed by gradually accumulating thick layers of flourishing plants grown in a certain geological environment and buried in water bottom or sediment through natural coalification in a long geological period, pneumoconiosis is very common in miners, life expectancy is reduced, pneumoconiosis is still very common in some mining countries, screening is firstly carried out, grading is carried out according to granularity, massive gangue and sundries are removed, and then coal is screened by utilizing different processing of properties such as density, sedimentation speed and surface tension of coal and other minerals, so that low ash content refined coal and products with other various specifications are separated.

For example, patent number CN205599523U, the utility model discloses a multi-stage coal mine screening device, which comprises a screening device body, wherein the screening device body comprises a first screening layer, a second screening layer and a third screening layer; the heights of the first screening layer, the second screening layer and the third screening layer are sequentially reduced; the lower part of the screening device body is provided with a bracket; screening baskets are arranged on the first screening layer, the second screening layer and the third screening layer; the lower part of the screening basket is provided with a screening net; the diameters of the screening nets of the first screening layer, the second screening layer and the third screening layer are sequentially reduced; the lower part on first screening layer and second screening layer all be provided with the hang plate, its simple structure, convenient to use, easy operation, multistage screening improves enterprise's operating efficiency, it is convenient to collect, it is convenient to take.

The coal mine screening device for coal mining in the patent ignores a large amount of coal mine dust generated during coal mine screening, and the dust drifts in the air to be easily inhaled into the lung by an operator, so that the coal mine dust has great harm to the lung and influences the physical health of the operator.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a coal mine screening device for coal mining, which aims to solve the problems that a large amount of coal mine dust is generated when coal mine screening is neglected in the background art, the dust drifts in the air and is easily sucked into the lungs by operators, and the coal mine dust has great harm to the lungs and affects the physical health of the operators.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a colliery sieving mechanism for coal mining, includes braced frame and sieve silo, braced frame's upper end fixed mounting has the spring, the upper end fixed mounting of spring has the connecting block, the left side fixed mounting of sieve silo upper end has the feed inlet, the upper end of feed inlet is provided with the water jet, the upper end sliding connection of sieve silo has the apron, the inboard fixed mounting of sieve silo has sieve layer one, the inboard of sieve silo is located the below fixed mounting of sieve layer one has sieve layer two, be provided with screening chamber one between sieve layer one's upper end and the sieve silo, be provided with screening chamber two between sieve layer one and the sieve layer two, be provided with screening chamber three between sieve layer two's lower extreme and the sieve silo, sieve silo's right-hand member top-down has set gradually discharge gate one, discharge gate two and discharge gate three, sieve silo's lower extreme fixed mounting has the vibrations motor.

Preferably, the springs are arranged in four, and the connecting blocks are fixedly connected with the sieving grooves.

Preferably, the inside rotation of feed inlet is connected with the connecting axle, the fixed surface mounting of connecting axle has the reposition of redundant personnel roller, the fixed surface mounting of reposition of redundant personnel roller has the flow distribution plate, the front end fixed mounting of feed inlet has the rotation motor.

Preferably, the front end of the connecting shaft extends to the outer side of the feed inlet and is fixedly connected with the rotating motor, the distribution plates are distributed in four annular arrays by taking the distribution roller as a circle center, and the feed inlet is of a funnel-shaped structure.

Preferably, the water spraying port is fixedly connected with the feeding port, and the right end of the water spraying port is provided with a water pipe.

Preferably, the first screening cavity is communicated with the first discharge port, the second screening cavity is communicated with the second discharge port, the third screening cavity is communicated with the third discharge port, and the first discharge port, the second discharge port and the third discharge port are all funnel-shaped structures.

Advantageous effects

The utility model provides a coal mine screening device for coal mining. Compared with the prior art, the method has the following beneficial effects:

1. this kind of colliery sieving mechanism for coal mining, incessantly spray water smoke in the feed inlet top through the water jet, utilize water smoke moist colliery piece surface for the colliery dust adsorbs on the coal ore piece, be difficult for diffusing, and through closed apron, make the sieve silo form semi-closed state when the operation, further prevent that the colliery dust from spreading to the air in, avoid the workman to inhale the colliery dust when the operation lung, cause irreversible harm to the lung, improved operating personnel's operational environment.

2. This kind of colliery sieving mechanism for coal mining drives the flow distribution plate through rotating the motor and rotates for the colliery piece that sends into the feed inlet is even to the sieve inslot portion that drops, avoids the colliery piece to pile up, causes the colliery piece to block up the feed inlet, and is favorable to the follow-up screening work of coal ore piece, makes the colliery piece screening more abundant, has improved the quality of colliery piece screening.

3. This kind of colliery sieving mechanism for coal mining drives the vibration of sieve material groove through vibrating motor for big piece coal ore block stays in screening chamber one, and little piece coal ore block falls into screening chamber two through screening layer one, and the colliery fragment passes through screening layer one and screening layer two, falls into screening chamber three, and utilizes the right-hand member downward sloping of sieve material groove, makes to drive the coal ore block and remove right when carrying out the screening of colliery piece, through three-layer classification, distinguishes the colliery of collecting different sizes, makes the colliery divide the more careful of sieve, utilizes the branch screening mode of conveying pipelined, has improved the work efficiency of colliery branch sieve.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of the structure of the screening layer according to the present utility model;

fig. 3 is a schematic structural view of the present utility model.

In the figure: 1. a support frame; 2. screening groove; 3. a spring; 4. a connecting block; 5. a feed inlet; 501. a connecting shaft; 502. a diverting roller; 503. a diverter plate; 504. a rotating motor; 6. a water jet; 7. a cover plate; 8. a first screening layer; 9. a second sieve layer; 10. screening a first cavity; 11. screening a second cavity; 12. screening a third cavity; 13. a first discharging hole; 14. a second discharging port; 15. a third discharging port; 16. and vibrating the motor.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a colliery sieving mechanism for coal mining, including braced frame 1 and sieve material groove 2, braced frame 1's upper end fixed mounting has spring 3, spring 3's upper end fixed mounting has connecting block 4, spring 3 is provided with four, connecting block 4 and sieve material groove 2 fixed connection, the left side fixed mounting of sieve material groove 2 upper end has feed inlet 5, the inside rotation of feed inlet 5 is connected with connecting axle 501, the fixed surface mounting of connecting axle 501 has reposition of redundant personnel roller 502, the surface fixed mounting of reposition of redundant personnel roller 502 has reposition of redundant personnel board 503, the front end of feed inlet 5 is fixed with rotation motor 504, the front end of connecting axle 501 extends to the feed inlet 5 outside and rotates motor 504 fixed connection, the reposition of redundant personnel board 503 takes reposition of redundant personnel roller 502 as centre of a circle annular array and distributes four, feed inlet 5 is funnel-shaped structure, drive the reposition of redundant personnel board 503 on reposition of redundant personnel roller 502 surface through rotation motor 504, make the colliery piece that feeds into feed inlet 5 evenly drop to sieve material groove 2 inside, avoid colliery piece to pile up, cause colliery piece to block up feed inlet 5, and be favorable to follow-up screening work of colliery piece, it is more abundant to sieve quality to have improved colliery piece screening quality;

the upper end of the feed inlet 5 is provided with a water spray opening 6, the water spray opening 6 is fixedly connected with the feed inlet 5, the right end of the water spray opening 6 is provided with a water pipe, the upper end of the material screening groove 2 is connected with a cover plate 7 in a sliding manner, water mist is continuously sprayed above the feed inlet 5 through the water spray opening 6, the surface of a coal mine block is wetted by the water mist, so that coal mine dust is adsorbed on the coal mine block and is not easy to diffuse into air, the material screening groove 2 forms a semi-closed state during operation through closing the cover plate 7, the coal mine dust is further prevented from diffusing into the air, the coal mine dust is prevented from being inhaled into the lung by workers during operation, irreversible harm is caused to the lung, and the working environment of operators is improved;

the inner side of the sieving groove 2 is fixedly provided with a sieving layer I8, the inner side of the sieving groove 2 is positioned below the sieving layer I8, a sieving cavity I10 is arranged between the upper end of the sieving layer I8 and the sieving groove 2, a sieving cavity II 11 is arranged between the sieving layer I8 and the sieving layer II 9, a sieving cavity III 12 is arranged between the lower end of the sieving layer II 9 and the sieving groove 2, the right end of the sieving groove 2 is sequentially provided with a discharge port I13, a discharge port II 14 and a discharge port III 15 from top to bottom, the lower end of the sieving groove 2 is fixedly provided with a vibrating motor 16, the sieving cavity I10 is communicated with the discharge port I13, the sieving cavity II 11 is communicated with the discharge port II 14, the sieving cavity III 12 is communicated with the discharge port III 15, the first 13, the second 14 and the third 15 of discharge gate are funnel-shaped structures, drive the screening groove 2 to vibrate through the vibrating motor 16, make the large coal ore blocks stay in the first 10 of screening cavities, the small coal ore blocks fall into the second 11 of screening cavities through the first 8 of screening layers, the coal mine fragments fall into the third 12 of screening cavities through the first 8 of screening layers and the second 9 of screening layers, and utilize the right-hand member downward sloping of the screening groove 2, so that the coal ore blocks are driven to move rightwards while screening the coal ore blocks, the first 10 of screening cavities, the second 11 of screening cavities and the third 15 of screening cavities are respectively output from the first 13 of discharge gate, the second 14 of discharge gate, and the third 12 of screening cavities, and the work efficiency of coal mine screening is improved by utilizing a conveying pipeline type screening method.

During operation, water mist is continuously sprayed above the feed inlet 5 through the water spray opening 6, the water mist is utilized to moisten the surface of the coal mine block, so that coal mine dust is adsorbed on the coal mine block and is not easy to diffuse into air, the flow dividing plate 503 on the surface of the flow dividing roller 502 is driven by the rotating motor 504 to rotate, so that the coal mine block fed into the feed inlet 5 uniformly falls into the screening groove 2, the vibration motor 16 drives the screening groove 2 to vibrate, so that large coal mine blocks are left in the screening cavity 10, small coal mine blocks fall into the screening cavity second 11 through the screening layer 8 and the screening layer second 9, the coal mine fragments pass through the screening layer first 8 and the screening cavity third 12, the right end of the screening groove 2 is inclined downwards, the coal mine blocks are driven to move rightwards when the coal mine blocks are screened, the screening cavity first 10, the screening cavity second 11 and the screening cavity third 12 are respectively output from the discharge opening first 13, the discharge opening second 14 and the discharge opening third 15, the screening groove 2 is in a semi-closed state when in operation, the coal mine blocks are further prevented from spreading by the vibration motor, the spring 3 is utilized, and the vibration is stably supported by the spring 3 when the spring is used, and the vibration is stably placed by the spring 1.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims

1. The utility model provides a colliery sieving mechanism for coal mining, includes braced frame (1) and sieve bin (2), its characterized in that: the utility model discloses a screen material feeding device, including supporting frame (1), connecting block (4), sieve material groove (2) upper end, support frame (1)'s upper end fixed mounting has spring (3), the left side fixed mounting of sieve material groove (2) upper end has feed inlet (5), the upper end of feed inlet (5) is provided with water jet (6), the upper end sliding connection of sieve material groove (2) has apron (7), the inboard fixed mounting of sieve material groove (2) has sieve material layer one (8), the inboard of sieve material groove (2) is located the below fixed mounting of sieve material layer one (8) and has sieve material layer two (9), be provided with screening chamber one (10) between the upper end of sieve material layer one (8) and sieve material groove (2), be provided with screening chamber two (11) between sieve material layer one (8) and the sieve material layer two (9), be provided with screening chamber three (12) between the lower extreme of sieve material layer two (9) and the sieve material groove (2), the right-hand member of sieve material groove (2) is located the below fixed mounting of sieve material layer one (8) has sieve material layer two (13), discharge gate three (16) and top-down (16) are installed to the motor.

2. A coal mine screening apparatus for coal mining as claimed in claim 1, wherein: the springs (3) are arranged in four, and the connecting blocks (4) are fixedly connected with the sieving groove (2).

3. A coal mine screening apparatus for coal mining as claimed in claim 1, wherein: the inside rotation of feed inlet (5) is connected with connecting axle (501), the fixed surface of connecting axle (501) installs reposition of redundant personnel roller (502), the fixed surface of reposition of redundant personnel roller (502) installs reposition of redundant personnel board (503), the front end fixed mounting of feed inlet (5) has rotation motor (504).

4. A coal mining coal mine screening apparatus according to claim 3, wherein: the front end of the connecting shaft (501) extends to the outer side of the feed inlet (5) and is fixedly connected with the rotating motor (504), the distribution plates (503) are distributed in four annular arrays by taking the distribution roller (502) as a circle center, and the feed inlet (5) is of a funnel-shaped structure.

5. A coal mine screening apparatus for coal mining as claimed in claim 1, wherein: the water jet (6) is fixedly connected with the feed inlet (5), and a water pipe is arranged at the right end of the water jet (6).

6. The coal mining coal mine screening device according to claim 5, wherein: screening chamber one (10) and discharge gate one (13) switch-on each other, screening chamber two (11) and discharge gate two (14) switch-on each other, screening chamber three (12) and discharge gate three (15) switch-on each other, discharge gate one (13), discharge gate two (14) and discharge gate three (15) are the funnel-shaped structure.