Coal mining treatment equipment

Abstract

The invention relates to the technical field of screening, in particular to coal mining treatment equipment which comprises a frame. The guide rails are fixedly mounted on the frame body; a sieve plate is arranged on the frame body and is fixedly provided with a sliding block; a screening notch is formed in the screening plate; the apertures of the screening notches in the screening plate are different and are gradually reduced in the vertical downward direction; a discharging ramp is fixedly mounted on the frame body; a swinging rotating shaft is rotationally mounted on the frame body, and a feeding hopper is fixedly mounted on the swinging rotating shaft; a feeding mechanism is arranged on the frame body, and the feeding mechanism can drive the feeding hopper to swing back and forth when acting; a plurality of groups of harrow plates are arranged on the frame body; a raking mechanism is arranged on the frame body; the raking mechanism can drive the raking plate to translate on the sieve plate when the feeding mechanism acts; a screening mechanism is arranged on the frame body and can drive the screening plate to slide back and forth when the feeding mechanism acts so as to drive the sliding block to slide back and forth on the guide rail. And through mutual cooperation of the raking mechanism, the screening mechanism and the feeding mechanism, the screening efficiency and the screening precision can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of screening, and specifically to a coal mining and processing device. Background Art

[0002] Coal mining generally adopts two methods: underground mining and surface mining. Underground mining is to extract coal in the coal seam by excavating underground roadways. This process requires the use of various coal mining equipment, such as excavators, loaders, conveyors, etc. After the coal is mined, it needs to be transported to a processing plant or transport vehicle on the ground. During the transportation process, the coal also needs to be screened and classified.

[0003] By screening and grading coal, coal can be divided into products of different qualities and specifications to supply users with suitable products, so as to rationally utilize coal and save energy. For example, lump coal can be supplied to railway steam locomotives and fertilizer factories, and fine coal can be supplied to power plants to rationally utilize coal resources; and through screening, impurities in raw coal, such as gangue and sediment, can be removed, thereby reducing ash content and improving the quality of coal. A common screening method is a coal screening machine.

[0004] A coal screening machine usually consists of multiple groups of screening plates that are inclined and arranged in layers. Each layer of screening plate is provided with notches. The transportation mechanism transports coal blocks to the first layer of screening plate. Under the action of gravity, the coal blocks roll down on the screening plate. During the rolling process, coal blocks with a particle size smaller than the notch will fall through the notch to the lower layer of screening plate for screening in this way; the rolling speed of the coal blocks is related to the inclination angle of the screening plate; when the inclination angle of the screening plate is larger, the rolling speed of the coal blocks is faster, and the transmission efficiency through the notch decreases, which is not conducive to improving the screening efficiency; when the inclination angle of the screening plate is smaller, the rolling speed of the coal blocks is slower; thus increasing the probability of notch blockage, which is also not conducive to improving the screening efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a coal mining and processing device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A coal mining and processing device includes a screening device, which is used to stack the screened coal blocks in piles and then through drying treatment for subsequent use; The screening device includes a frame body and multiple groups of guide rails fixedly installed on the frame body; A plurality of sets of sieve plates are arranged in the vertical direction of the frame body, and sliders slidably fitted with the guide rails are fixedly installed on the sieve plates; a plurality of sets of screening notches are formed in the sieve plates; the apertures of the screening notches on each set of sieve plates are different and decrease sequentially in the vertically downward direction; a plurality of discharge ramps are fixedly installed on the frame body; A swing rotating shaft is rotatably installed on the frame body, and a feed hopper is fixedly installed on the swing rotating shaft; A feeding mechanism is arranged on the frame body, and when the feeding mechanism operates, it can drive the feed hopper to swing reciprocally.

[0007] As a further scheme of the present invention: A plurality of sets of rake plates are arranged on the frame body; A raking mechanism is arranged on the frame body; when the feeding mechanism operates, the raking mechanism can drive the rake plates to translate on the sieve plates; A screening mechanism is arranged on the frame body, and when the feeding mechanism operates, the screening mechanism can drive the sieve plates to slide reciprocally to drive the sliders to slide reciprocally on the guide rails; The raking mechanism includes a cylinder fixedly installed on the frame body, a push rod is slidably installed in the cylinder, a vertically arranged first connecting rod is fixedly installed at the end of the push rod, a plurality of sliding rods are fixedly installed on the first connecting rod, and each sliding rod is fixedly connected to a rake plate; A sliding sleeve is fixedly installed at the highest end of the first connecting rod, a first protruding column is fixedly installed in the sliding sleeve, a first rotating shaft is rotatably installed on the frame body, and the first rotating shaft is slidably connected to the sliding sleeve; a spiral groove slidably fitted with the first protruding column is formed on the first rotating shaft; a first belt pulley is fixedly installed on the first rotating shaft; The feeding mechanism includes a second rotating shaft rotatably installed on the frame body, a second belt pulley is fixedly installed on the second rotating shaft, and the second belt pulley is connected to the first belt pulley through a belt; a second rotating rod is fixedly installed on the second rotating shaft, and a swinging protruding column is fixedly installed on the second rotating rod.

[0008] As a further scheme of the present invention: A swinging connecting rod is fixedly installed on the feed hopper, and a swinging chute slidably fitted with the swinging protruding column is formed on the swinging connecting rod.

[0009] As a further scheme of the present invention: The screening mechanism includes a first rotating rod fixedly installed on the first rotating shaft, and a screening protruding column is fixedly installed on the first rotating rod; a plurality of lifting plates are slidably fitted on the frame body, and a screening connecting rod is fixedly installed on the plurality of lifting plates.

[0010] As a further aspect of the present invention: a screening chute is formed on the screening connecting rod for sliding and fitting with the screening convex column; a plurality of groups of second convex columns are fixedly installed on the sieve plate, and a plurality of groups of screening slots are formed on the lifting plate, and the screening slots are in sliding fit with the second convex columns.

[0011] As a further aspect of the present invention: the screening slots include a plurality of groups of first inclined slots and a plurality of groups of second inclined slots, the plurality of groups of first inclined slots and the plurality of groups of second inclined slots are arranged alternately and communicate with each other.

[0012] As a further aspect of the present invention: the discharge ramp is inclined, and the regions corresponding to the ends of each group of discharge ramps are different.

[0013] As a further aspect of the present invention: the distance between each group of rake plates and the corresponding sieve plate is different, and the distance is greater than the aperture of the screening slot opening on the corresponding sieve plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by driving the feed hopper to swing and feed through the feeding mechanism, it can effectively avoid the accumulation of coal blocks in one place and reduce the subsequent screening efficiency; by driving the sieve plate to slide reciprocally with a small amplitude and high frequency through the screening mechanism, it can effectively accelerate the speed of coal blocks passing through the screening slot opening and improve the screening efficiency; by driving the rake plate to reciprocally translate through the raking mechanism, it can avoid the blockage of the screening slot opening to improve the screening efficiency, and can also prevent coal blocks with a large difference in particle size from being conveyed onto the same transportation device, thereby affecting the screening accuracy; through the mutual cooperation of the raking mechanism, the screening mechanism, and the feeding mechanism, the screening efficiency and screening accuracy can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of an embodiment of a coal mining and processing device.

[0016] Figure 2 It is a schematic structural diagram of another perspective of an embodiment of a coal mining and processing device.

[0017] Figure 3 For Figure 2 the schematic structural diagram of the partial cross-sectional view.

[0018] Figure 4 It is a schematic structural diagram of the screening mechanism in an embodiment of a coal mining and processing device.

[0019] Figure 5 For Figure 4 the schematic structural diagram at position A in

[0020] Figure 6 For Figure 4 the schematic structural diagram at position B in

[0021] Figure 7 is Figure 4 a structural schematic diagram of another perspective.

[0022] Figure 8 is Figure 7 a structural schematic diagram of the position C in

[0023] Figure 9 a structural schematic diagram of a feeding mechanism in an embodiment of a coal mining and processing device.

[0024] In the figure: 1, frame; 2, cylinder; 3, ejector rod; 4, first connecting rod; 5, sliding rod; 6, rake plate; 7, sliding sleeve; 701, first convex column; 8, first rotating shaft; 801, spiral groove; 802, first pulley; 9, first rotating rod; 901, screening convex column; 10, screening connecting rod; 1001, screening chute; 11, lifting plate; 12, second rotating shaft; 1201, second pulley; 13, second rotating rod; 1301, swinging convex column; 14, feed hopper; 1401, swinging rotating shaft; 15, swinging connecting rod; 1501, swinging chute; 16, sieve plate; 1601, second convex column; 1602, screening notch; 1603, slider; 17, screening groove; 1701, first inclined groove; 1702, second inclined groove; 18, discharge ramp; 19, guide rail. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In addition, an element in the present invention is referred to as "fixed to" or "disposed on" another element, and it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0027] Please refer to Figures 1 to 9 , in an embodiment of the present invention, a coal mining and processing device includes a screening device, and the screening device is used to stack the screened coal blocks in piles and then through drying treatment for subsequent use.

[0028] In another embodiment of the present invention, the screening device includes a frame body 1; and a plurality of groups of guide rails 19 fixedly installed on the frame body 1; A plurality of groups of sieve plates 16 are arranged in the vertical direction of the frame body 1, and sliders 1603 slidably fitted with the guide rails 19 are fixedly installed on the sieve plates 16; a plurality of groups of screening notches 1602 are formed on the sieve plates 16; the apertures of the screening notches 1602 on each group of sieve plates 16 are different and decrease sequentially in the vertically downward direction; a plurality of groups of discharge ramps 18 are fixedly installed on the frame body 1; A swing rotating shaft 1401 is rotatably installed on the frame body 1, and a feed hopper 14 is fixedly installed on the swing rotating shaft 1401; A feeding mechanism is arranged on the frame body 1, and when the feeding mechanism operates, it can drive the feed hopper 14 to swing reciprocally; A plurality of groups of rake plates 6 are arranged on the frame body 1; A raking mechanism is arranged on the frame body 1; when the feeding mechanism operates, the raking mechanism can drive the rake plates 6 to translate on the sieve plates 16; A screening mechanism is arranged on the frame body 1, and when the feeding mechanism operates, the screening mechanism can drive the sieve plates 16 to slide reciprocally to drive the sliders 1603 to slide reciprocally on the guide rails 19.

[0029] Taking the embodiment combined with all the features recorded in this application as an example, in use, the transportation device continuously transports coal blocks with different particle sizes that have undergone water washing and crushing treatments into the feed hopper 14.

[0030] By the operation of the feeding mechanism to drive the feed hopper 14 to swing reciprocally, the swing rotating shaft 1401 and the frame body 1 are rotationally matched, so as to more evenly place the coal blocks in the feed hopper 14 on the uppermost sieve plate 16; by driving the feed hopper 14 to swing and feed materials through the feeding mechanism, it can effectively avoid the accumulation of coal blocks in one place and reduce the subsequent screening efficiency.

[0031] When the feeding mechanism operates, the screening mechanism operates synchronously. By driving the screening mechanism, the sieve plate 16 slides reciprocally. At this time, the slider 1603 will slide reciprocally in the guide rail 19, and the sliding frequency is relatively high while the amplitude is relatively small. When the sieve plate 16 slides reciprocally, the coal blocks on the uppermost sieve plate 16 with dimensions smaller than the aperture of the screening notch 1602 will fall onto the lower sieve plate 16; while the coal blocks with dimensions larger than the aperture of the screening notch 1602 will remain on the current sieve plate 16; the fallen coal blocks will continue to fall to the next lower sieve plate 16 after being screened by the screening notch 1602 on the lower sieve plate 16. By driving the sieve plate 16 to slide reciprocally with a small amplitude and a high frequency through the screening mechanism, the speed of the coal blocks passing through the screening notch 1602 can be effectively increased, and the screening efficiency is improved.

[0032] While the screening mechanism operates, the raking mechanism will operate synchronously. By driving the raking mechanism, the rake plate 6 reciprocally translates on the sieve plate 16, and the coal blocks on the sieve plate 16 that cannot pass through the screening notch 1602 can be pushed onto the discharge ramp 18. By driving the rake plate 6 to reciprocally translate through the raking mechanism, the blockage of the screening notch 1602 can be avoided to improve the screening efficiency, and the situation that coal blocks with significantly different particle sizes are conveyed onto the same transportation device, which affects the screening accuracy, can be avoided.

[0033] Through the mutual cooperation of the raking mechanism, the screening mechanism, and the feeding mechanism, the screening efficiency and the screening accuracy can be effectively improved.

[0034] In another embodiment of the present invention, the raking mechanism includes a cylinder 2 fixedly installed on the frame body 1. A push rod 3 is slidably installed in the cylinder 2. A vertically arranged first connecting rod 4 is fixedly installed at the end of the push rod 3. Multiple groups of slide rods 5 are fixedly installed on the first connecting rod 4. Each slide rod 5 is fixedly connected to a rake plate 6.

[0035] Taking the embodiment in which all the features described in this application are combined as an example, when in use, when the cylinder 2 operates, it can drive the push rod 3 to extend outwards or contract inwards; when the push rod 3 extends outwards or contracts inwards, it will drive the first connecting rod 4 to displace synchronously, so as to drive all the vertical slide rods 5 to slide synchronously on the frame body 1, thereby driving the rake plate 6 to reciprocally translate on the sieve plate 16; during the reciprocal translation of the rake plate 6, it will contact the coal blocks with dimensions larger than the aperture of the corresponding screening notch 1602 and drive the coal blocks to displace synchronously until they enter the discharge ramp 18; with the reciprocal translation of the rake plate 6, the flow of the coal blocks on the sieve plate 16 can be accelerated, so as to improve the efficiency of the coal blocks with particle sizes smaller than the aperture of the screening notch 1602 falling through the screening notch 1602 onto the lower sieve plate 16, and the blockage of the screening notch 1602 can be avoided to improve the screening efficiency, and the situation that coal blocks with significantly different particle sizes are conveyed onto the same transportation device, which affects the screening accuracy, can be avoided.

[0036] In another embodiment of the present invention, a sliding sleeve 7 is fixedly installed on the highest end of the first connecting rod 4. A first protruding column 701 is fixedly installed inside the sliding sleeve 7. A first rotating shaft 8 is rotatably installed on the frame body 1. The first rotating shaft 8 is slidably connected to the sliding sleeve 7. A spiral groove 801 that slidably fits with the first protruding column 701 is formed on the first rotating shaft 8. A first belt pulley 802 is fixedly installed on the first rotating shaft 8.

[0037] Taking the embodiment combining all the features described in this application as an example, during use, the movement of the first connecting rod 4 can drive the sliding sleeve 7 to displace synchronously on the first rotating shaft 8, enabling the first protruding column 701 to slidably cooperate with the spiral groove 801, thereby driving the first rotating shaft 8 to rotate, and in turn driving the first belt pulley 802 to rotate. As the movement direction of the first connecting rod 4 is different, the rotation direction of the first rotating shaft 8 is also different. The first rotating shaft 8 is connected to the screening mechanism, and the first belt pulley 802 is connected to the feeding mechanism. Therefore, when the raking mechanism operates, it can drive the first rotating shaft 8 to rotate, thereby driving the first belt pulley 802 to rotate, and in turn driving the screening mechanism and the feeding mechanism to operate synchronously. Through the mutual cooperation of the raking mechanism, the screening mechanism, and the feeding mechanism, the screening efficiency and screening accuracy can be effectively improved.

[0038] In another embodiment of the present invention, the feeding mechanism includes a second rotating shaft 12 rotatably installed on the frame body 1. A second belt pulley 1201 is fixedly installed on the second rotating shaft 12. The second belt pulley 1201 is connected to the first belt pulley 802 through a belt. A second rotating rod 13 is fixedly installed on the second rotating shaft 12. A swinging protruding column 1301 is fixedly installed on the second rotating rod 13. A swinging connecting rod 15 is fixedly installed on the feeding hopper 14. A swinging chute 1501 that slidably fits with the swinging protruding column 1301 is formed on the swinging connecting rod 15.

[0039] Taking the embodiment combining all the features described in this application as an example, during use, when the first belt pulley 802 rotates, it will drive the second belt pulley 1201 to rotate through the belt, thereby driving the second rotating shaft 12 to rotate. The rotating second rotating shaft 12 can drive the second rotating rod 13 to rotate, thereby driving the swinging protruding column 1301 to rotate. When the swinging protruding column 1301 rotates, it will slidably cooperate with the swinging chute 1501, thereby driving the feeding hopper 14 to reciprocally swing on the frame body 1 along the swinging rotating shaft 1401 through the swinging connecting rod 15.

[0040] The discharge port of the reciprocally swinging feeding hopper 14 evenly places the coal lumps continuously transported by the conveying device on the sieve plate 16 as the swinging progresses, so as to avoid the coal lumps piling up together and reducing the screening efficiency.

[0041] Another embodiment of the present invention, the screening mechanism includes a first rotating rod 9 fixedly installed on the first rotating shaft 8, and a screening convex column 901 is fixedly installed on the first rotating rod 9; a plurality of lifting plates 11 are slidably fitted on the frame 1, and a screening connecting rod 10 is fixedly installed on the plurality of lifting plates 11, and a screening chute 1001 slidably fitted with the screening convex column 901 is opened on the screening connecting rod 10; a plurality of second convex columns 1601 are fixedly installed on the sieve plate 16, and a plurality of screening grooves 17 are opened on the lifting plate 11, and the screening grooves 17 are slidably matched with the second convex columns 1601.

[0042] Taking the embodiment combined with all the features described in this application as an example, when in use, when the first rotating shaft 8 rotates, it will drive the first rotating rod 9 to rotate synchronously, thereby driving the screening convex column 901 to be slidably matched with the screening chute 1001, so as to drive the screening connecting rod 10 to reciprocate up and down, and then drive the lifting plate 11 to reciprocate up and down and slide.

[0043] During the reciprocating up and down sliding process of the lifting plate 11, the screening groove 17 will be slidably matched with the second convex column 1601, so as to drive the sieve plate 16 to reciprocate horizontally on the frame 1, so as to drive the slider 1603 to reciprocate on the guide rail 19, thereby improving the screening efficiency.

[0044] Driving the sieve plate 16 to reciprocate with a small amplitude and high frequency through the screening mechanism can effectively accelerate the speed of the coal blocks passing through the screening notch 1602 and improve the screening efficiency.

[0045] Another embodiment of the present invention, the screening groove 17 includes a plurality of first inclined grooves 1701 and a plurality of second inclined grooves 1702, the plurality of first inclined grooves 1701 and the plurality of second inclined grooves 1702 are arranged alternately and communicate with each other.

[0046] Taking the embodiment combining all the features described in this application as an example, when in use, the inclination directions of the first inclined groove 1701 and the second inclined groove 1702 are opposite; when the second convex column 1601 slides in the first inclined groove 1701, the first inclined groove 1701 will squeeze the second convex column 1601, thereby driving the sieve plate 16 to translate on the frame body 1; and when the second convex column 1601 slides from the first inclined groove 1701 into the second inclined groove 1702 and slides in the second inclined groove 1702, the second inclined groove 1702 will squeeze the second convex column 1601, thereby driving the sieve plate 16 to translate on the frame body 1, and the translation direction is opposite to the translation direction of the sieve plate 16 when the second convex column 1601 slides in the first inclined groove 1701. Since there are multiple groups of the first inclined grooves 1701 and multiple groups of the second inclined grooves 1702, the sieve plate 16 slides back and forth on the frame body 1; by driving the sieve plate 16 to slide back and forth in small amplitudes and at high frequencies through the screening mechanism, the speed of the coal blocks passing through the screening notch 1602 can be effectively increased, and the screening efficiency is improved.

[0047] In another embodiment of the present invention, the discharge ramp 18 is inclined, and the areas corresponding to the ends of each group of the discharge ramps 18 are different.

[0048] Taking the embodiment combining all the features described in this application as an example, when in use, different discharge ramps 18 are connected to each sieve plate 16, and the areas corresponding to the ends of each discharge ramp 18 are different, so that after the rake plate 6 pushes the coal blocks of corresponding sizes onto the discharge ramp 18, the inclined discharge ramp 18 can accelerate the transportation speed of the coal blocks and convey them to different areas, thereby avoiding the screening failure caused by the screened coal blocks discharging from one place.

[0049] In another embodiment of the present invention, the distance between each group of the rake plates 6 and the corresponding sieve plates 16 is different, and the distance is greater than the aperture of the screening notch 1602 on the corresponding sieve plate 16.

[0050] Taking the embodiment combining all the features described in this application as an example, when in use, since there is a distance between the rake plate 6 and the corresponding sieve plate 16, and the distance is slightly greater than the aperture of the screening notch 1602 on the corresponding sieve plate 16. Therefore, during the reciprocating translation of the raking mechanism driving the rake plate 6, it will only contact the coal blocks that cannot pass through the screening notch 1602 and drive the coal blocks to move synchronously until the coal blocks enter the discharge ramp 18; it can effectively avoid the coal blocks with relatively large particle size differences being conveyed out through the same discharge ramp 18, thereby improving the screening accuracy and screening efficiency.

[0051] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0052] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal mine mining and processing device, characterized in that, It includes a screening device which is used to stack the screened coal blocks in piles and then through drying treatment for subsequent use; The screening device includes a frame body (1) and multiple groups of guide rails (19) fixedly installed on the frame body (1); Multiple groups of sieve plates (16) are arranged in the vertical direction of the frame body (1). Sliders (1603) which are slidably fitted with the guide rails (19) are fixedly installed on the sieve plates (16); Multiple groups of screening notches (1602) are formed on the sieve plates (16); The apertures of the screening notches (1602) on each group of sieve plates (16) are different and decrease in sequence in the vertically downward direction; Multiple groups of discharge ramps (18) are fixedly installed on the frame body (1); A swing rotating shaft (1401) is rotatably installed on the frame body (1), and a feed hopper (14) is fixedly installed on the swing rotating shaft (1401); A feeding mechanism is arranged on the frame body (1), and when the feeding mechanism operates, it can drive the feed hopper (14) to swing reciprocally.

2. The coal mine mining and processing equipment according to claim 1, characterized in that, Multiple groups of rake plates (6) are arranged on the frame body (1); A raking mechanism is arranged on the frame body (1); When the feeding mechanism operates, the raking mechanism can drive the rake plates (6) to translate on the sieve plates (16); A screening mechanism is arranged on the frame body (1), and when the feeding mechanism operates, the screening mechanism can drive the sieve plates (16) to slide reciprocally to drive the sliders (1603) to slide reciprocally on the guide rails (19); The raking mechanism includes a cylinder (2) fixedly installed on the frame body (1). A push rod (3) is slidably installed in the cylinder (2). A vertically arranged first connecting rod (4) is fixedly installed at the end of the push rod (3). Multiple groups of sliding rods (5) are fixedly installed on the first connecting rod (4), and each sliding rod (5) is fixedly connected with a rake plate (6); A sliding sleeve (7) is fixedly installed at the highest end of the first connecting rod (4). A first protruding column (701) is fixedly installed in the sliding sleeve (7). A first rotating shaft (8) is rotatably installed on the frame body (1), and the first rotating shaft (8) is slidably connected with the sliding sleeve (7); A spiral groove (801) which is slidably fitted with the first protruding column (701) is formed on the first rotating shaft (8); A first belt pulley (802) is fixedly installed on the first rotating shaft (8); The feeding mechanism includes a second rotating shaft (12) rotatably installed on the frame body (1). A second belt pulley (1201) is fixedly installed on the second rotating shaft (12), and the second belt pulley (1201) is connected with the first belt pulley (802) through a belt; A second rotating rod (13) is fixedly installed on the second rotating shaft (12), and a swing protruding column (1301) is fixedly installed on the second rotating rod (13).

3. The coal mining and processing equipment according to claim 2, characterized in that, A swing connecting rod (15) is fixedly installed on the feed hopper (14), and a swing chute (1501) which is slidably fitted with the swing protruding column (1301) is formed on the swing connecting rod (15).

4. A coal mining treatment device according to claim 3, characterized in that, The screening mechanism includes a first rotating rod (9) fixedly installed on the first rotating shaft (8), and a screening convex column (901) is fixedly installed on the first rotating rod (9); a plurality of lifting plates (11) are slidably fitted on the frame body (1), and a screening connecting rod (10) is fixedly installed on the plurality of lifting plates (11).

5. An underground coal mining and processing device according to claim 4, characterized in that, A screening chute (1001) slidably fitted with the screening convex column (901) is formed on the screening connecting rod (10); a plurality of second convex columns (1601) are fixedly installed on the sieve plate (16), and a plurality of screening grooves (17) are formed on the lifting plate (11), and the screening grooves (17) are slidably matched with the second convex columns (1601).

6. A coal mining treatment device according to claim 5, characterized in that, The screening groove (17) includes a plurality of first inclined grooves (1701) and a plurality of second inclined grooves (1702), the plurality of first inclined grooves (1701) and the plurality of second inclined grooves (1702) are arranged alternately and communicate with each other.

7. A coal mine mining and processing device according to claim 2, characterized in that, The discharge ramp (18) is inclined, and the areas corresponding to the ends of each discharge ramp (18) are different.

8. A coal mining treatment device according to claim 2, characterized in that, The distance between each rake plate (6) and the corresponding sieve plate (16) is different, and the distance is greater than the aperture of the screening notch (1602) on the corresponding sieve plate (16).

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