A negative-pressure drainage dry slag removal and dust removal device for coal and rock powder by bedding drilling

Abstract

The present invention belongs to the technical field of dry slag discharge of coal and rock powder, and provides a negative pressure drainage dry slag discharge and dust removal device for coal and rock powder in bedding boreholes, which includes a slag collection box and a rubber tube. The upper and lower end faces of the slag collection box are respectively provided with a feed pipe and a discharge pipe. The slag collection box is connected through the feed pipe to a slag discharge device for transporting coal slag, and the discharge pipe is sequentially connected through the rubber tube to a negative pressure amplification box and a slag discharge box. In the present invention, the negative pressure amplification box can generate negative pressure suction. Under the suction of the negative pressure amplification box, the coal and rock powder enters the filter sleeve through the feed pipe. Then, the coal and rock powder with a smaller particle size is discharged into the slag collection box through the diversion holes on the filter sleeve. The coal and rock powder in the slag collection box is transferred through the rubber tube into the slag discharge box, and the slag discharge box conveys and guides the coal and rock powder.

Description

Technical Field

[0001] The invention belongs to the technical field of dry slag discharge of coal and rock powder, and particularly relates to a negative pressure drainage dry slag discharge and dust removal device for coal and rock powder in a bedding borehole. Background Art

[0002] Mining refers to the extraction of naturally occurring minerals such as solids (such as coal and minerals). It includes underground or surface extraction, the operation of mines, and all auxiliary work generally carried out at or near the mine site for processing raw materials, such as crushing, beneficiation, and treatment, which all belong to this type of activity.

[0003] During the coal mining process, it is necessary to drill and break the coal seam, and then send the broken coal slag out of the mine through a slag discharge device. During the coal block slag discharge process, a large amount of coal and rock powder will be mixed in the coal slag and the air, and the coal and rock powder needs to be collected and reused during the production process.

[0004] The existing negative pressure drainage dry slag discharge and dust removal device for coal and rock powder in a bedding borehole generally uses a negative pressure adsorption method to collect coal and rock powder. When adsorbing coal and rock powder under negative pressure, due to the relatively large particle size and high humidity of some coal and rock powder particles, during the adsorption process of coal and rock powder, some coal and rock powder is likely to adhere to the negative pressure device. When used for a long time, the large accumulation of coal and rock powder adhering to the negative pressure device will cause blockage of the negative pressure device, affecting the adsorption effect of the negative pressure device. Summary of the Invention

[0005] The purpose of the invention is to provide a negative pressure drainage dry slag discharge and dust removal device for coal and rock powder in a bedding borehole, aiming to solve the technical problem that the large accumulation of coal and rock powder adhering to the negative pressure device in the prior art will cause blockage of the negative pressure device and affect the adsorption effect of the negative pressure device.

[0006] The invention is realized as follows: A negative pressure drainage dry slag discharge and dust removal device for coal and rock powder in a bedding borehole includes a slag collection box and a rubber tube. The upper and lower end faces of the slag collection box are respectively provided with a feed pipe and a discharge pipe. The slag collection box is connected to a slag discharge device for transporting coal slag through the feed pipe. The discharge pipe is sequentially connected to a negative pressure amplification box and a slag discharge box through the rubber tube. The rubber tube is connected to the side of the slag discharge box.

[0007] A filter sleeve is connected to the feed pipe. Multiple rows of diversion holes are spacedly arranged on the side end face of the filter sleeve. A baffle is fixedly arranged in the filter sleeve. The baffle is fixedly connected to an inner sleeve. A plurality of feed holes are arranged near the bottom of the inner sleeve. A retaining net is arranged at each feed hole, and each feed hole is directly opposite to a diversion hole on one side.

[0008] A scraping mechanism is arranged outside the inner sleeve. The scraping mechanism can clean the inner wall of the filter sleeve. The scraping mechanism is connected with a rolling and pressing mechanism. The rolling and pressing mechanism can roll and dry the coal and rock powder on the upper side of the baffle. A material guiding mechanism is arranged in the inner sleeve. The material guiding mechanism can vertically convey and dry the coal and rock powder. A material scattering mechanism for scattering the coal and rock powder is arranged at the upper part of the inner sleeve. A filter screen is arranged on the baffle. The baffle is connected with a closing assembly for closing the filter screen.

[0009] A number of air flow holes are arranged at both the upper and lower ends of the material guiding mechanism. The material guiding mechanism is fixedly connected with an electric sleeve. The electric sleeve can close the air flow holes at the lower end of the material guiding mechanism.

[0010] A number of position sensors are arranged on the upper side of the filter sleeve. The position sensors are all arranged on one side of the diversion hole.

[0011] Further technical solution: The scraping mechanism includes a gear sleeve, a connecting rod, a scraping plate, a strip-shaped hole and a first motor.

[0012] The gear sleeve is rotationally connected with the outer wall of the inner sleeve. The gear sleeve is fixedly connected with a number of connecting rods. The connecting rods are all fixedly connected with scraping plates. The scraping plates are attached to the inner wall of the filter sleeve. Strip-shaped holes are vertically arranged on the lower sides of the scraping plates. A first motor is fixedly connected to the side wall of the inner sleeve. The gear shaft of the first motor meshes with the gear sleeve.

[0013] Further technical solution: The rolling and pressing mechanism includes a rotating roller and rolling and pressing strips. The rotating roller is rotationally connected with the scraping plate. A number of rolling and pressing strips are fixedly connected to the outer side wall of the rotating roller. An electric heater is arranged in the rotating roller.

[0014] Further technical solution: The material guiding mechanism includes an electric telescopic rod, a pushing blade, a second motor and a belt transmission pair.

[0015] The fixed part of the electric telescopic rod is rotationally connected with the baffle. An electric heater is arranged in the electric telescopic rod. The telescopic end of the electric telescopic rod is spirally provided with a pushing blade. A second motor is fixedly arranged on the bottom surface of the baffle. A belt transmission pair is arranged between the second motor and the fixed part of the electric telescopic rod.

[0016] Further technical solution: A number of air flow holes are arranged at both the upper and lower ends of the electric telescopic rod. The electric sleeve is fixedly connected inside the electric telescopic rod. A retaining seat is fixedly arranged at the top of the electric telescopic rod.

[0017] Further technical solution: the bulk material mechanism includes a bulk material sleeve and a material guide plate, the upper end of the inner sleeve is rotatably connected to the bulk material sleeve, and a plurality of material guide plates are distributed on the side end surface of the bulk material sleeve. The No. 1 motor is a dual-axis motor, and the two output shafts of the No. 1 motor can rotate asynchronously, and the other gear shaft of the No. 1 motor is meshed with the outer wall of the bulk material sleeve.

[0018] Further technical solution: The closing component includes an electric telescopic rod and a sealing plate, the electric telescopic rod is fixedly connected to the lower end surface of the baffle, the telescopic end of the electric telescopic rod is fixedly connected to the sealing plate through a bracket, and the sealing plate abuts against the filter screen.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The negative pressure amplification box can generate negative pressure suction. Under the suction of the negative pressure amplification box, the coal rock powder enters the slag collecting box through the feeding pipe. The coal rock powder in the slag collecting box enters the slag discharge box through the rubber tube. The slag discharge box transports and guides the coal rock powder.

[0021] 2. The coal rock powder with larger particle size in the filter sleeve falls onto the baffle, and the scraper mechanism can clean the inner wall of the filter sleeve. At this time, the roller pressing mechanism can roll and dry the coal rock powder on the upper side of the baffle. The crushed and dried coal rock powder is discharged into the slag box under the action of wind;

[0022] 3. When too much coal-rock powder accumulates on the baffle, the electric sleeve is started to release the seal of the air flow hole, and the negative pressure wind passes through the material guide mechanism to dry the coal-rock powder accumulated on the lower side, thereby increasing the drying rate of the coal-rock powder accumulated at the bottom, and at the same time, the sealing component releases the blockade of the filter screen, and the dried coal-rock powder is directly discharged from the bottom into the slag box to avoid the accumulation of coal-rock powder in the filter sleeve;

[0023] 4. When coal rock powder accumulates on the upper side of the baffle, the electric sleeve releases the seal of the air flow holes on the lower side of the electric sleeve rod. At this time, negative pressure wind enters the filter sleeve from the feed pipe, and then part of the negative pressure wind enters the electric sleeve rod from the air flow holes on the upper side of the electric sleeve rod. The negative pressure wind in the electric sleeve rod is heated and blown out from all the air flow holes on the lower side of the electric sleeve rod, thereby heating and blowing the coal rock powder accumulated on the lower side; in this process, the roller connected to the scraper reciprocates around the periphery of the feed hole, and the roller drives all the roller strips to roll the coal rock powder. At the same time, the roller can also crush the coal rock powder accumulated on the lower side through the roller strips, thereby forming a diversion channel between the feed hole and the diversion hole on the lower side, so that the wind in the electric sleeve rod can be blown to the diversion hole through the feed hole, thereby improving the drying and dispersion speed of the accumulated coal rock powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1Schematic diagram of the overall structure of the present invention.

[0025] Figure 2 Schematic diagram of the internal structure of the slag collection box in the present invention.

[0026] Figure 3 Schematic diagram of the structure of the scraping mechanism in the present invention.

[0027] Figure 4 Schematic diagram of the structure of the material guiding mechanism in the present invention.

[0028] Figure 5 is Figure 4 schematic diagram of the structure of area A in

[0029] Figure 6 Schematic diagram of the structure of the material scattering mechanism in the present invention.

[0030] Figure 7 Schematic diagram of the structure of the roll pressing mechanism in the present invention.

[0031] In the attached drawings: 1. Slag collection box; 2. Negative pressure amplification box; 3. Slag discharge box; 4. Scraping mechanism; 41. Gear sleeve; 42. Connecting rod; 43. Scraper; 44. Strip-shaped hole; 45. First motor; 5. Roll pressing mechanism; 51. Rotating roller; 52. Roll pressing strip; 6. Material guiding mechanism; 61. Electric telescopic rod; 62. Pushing blade; 63. Second motor; 64. Belt transmission pair; 7. Material scattering mechanism; 71. Material scattering sleeve; 72. Material guiding plate; 8. Baffle; 9. Sealing component; 91. Electric telescopic rod; 92. Sealing plate; 10. Filter sleeve; 11. Flow guiding hole; 12. Inner sleeve; 13. Feeding hole; 14. Air flow hole; 15. Electric sleeve; 16. Filter net; 17. Stopper; 18. Position sensor; 19. Rubber tube; 20. Feeding pipe; 21. Discharge pipe. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.

[0034] Such as Figures 1 - 7As shown in the figure, a negative-pressure drainage dry slag removal and dust removal device for coal and rock powder with bedding drilling provided by the present invention includes a slag collection box 1 and a rubber tube 19. The upper and lower end faces of the slag collection box 1 are respectively provided with a feed pipe 20 and a discharge pipe 21. The slag collection box 1 is connected through the feed pipe 20 to a slag discharge device for transporting coal slag. The discharge pipe 21 is sequentially connected through the rubber tube 19 to a negative-pressure amplification box 2 and a slag discharge box 3. The rubber tube 19 is connected to the side of the slag discharge box 3;

[0035] A filter sleeve 10 is connected to the feed pipe 20. Multiple rows of diversion holes 11 are arranged at intervals on the side end face of the filter sleeve 10. A baffle 8 is fixedly arranged in the filter sleeve 10. The baffle 8 is fixedly connected to an inner sleeve 12. A plurality of feed holes 13 are arranged at a position close to the bottom of the inner sleeve 12. A retaining net is arranged at each feed hole 13, and each feed hole 13 is directly opposite to a diversion hole 11 on one side;

[0036] A scraping mechanism 4 is arranged outside the inner sleeve 12. The scraping mechanism 4 can clean the inner wall of the filter sleeve 10. The scraping mechanism 4 is connected to a rolling and pressing mechanism 5. The rolling and pressing mechanism 5 can roll and dry the coal and rock powder on the upper side of the baffle 8. A material guiding mechanism 6 is arranged in the inner sleeve 12. The material guiding mechanism 6 can vertically transport and dry the coal and rock powder. A material scattering mechanism 7 for scattering the coal and rock powder is arranged at the upper part of the inner sleeve 12. A filter net 16 is arranged on the baffle 8. The baffle 8 is connected to a closing assembly 9 for closing the filter net 16;

[0037] A number of air flow holes 14 are arranged at both the upper and lower ends of the material guiding mechanism 6. The material guiding mechanism 6 is fixedly connected to an electric sleeve 15. The electric sleeve 15 can close the air flow holes 14 at the lower end of the material guiding mechanism 6;

[0038] A number of position sensors 18 are arranged on the upper side of the filter sleeve 10. The position sensors 18 are all arranged on one side of the diversion holes 11.

[0039] In this embodiment, the feed pipe 20 is connected to a coal slag transportation device. The negative-pressure amplification box 2 can generate negative-pressure suction. Under the suction of the negative-pressure amplification box 2, the coal and rock powder enters the filter sleeve 10 through the feed pipe 20. Then, the coal and rock powder with smaller particle size is discharged into the slag collection box 1 through the diversion holes 11 on the filter sleeve 10. The coal and rock powder in the slag collection box 1 enters the slag discharge box 3 through the transmission of the rubber tube 19, and the slag discharge box 3 transports and guides the coal and rock powder;

[0040] During this process, the coal and rock powder with larger particle size in the filter sleeve 10 falls onto the baffle 8. The scraping mechanism 4 can clean the inner wall of the filter sleeve 10. At this time, the rolling and pressing mechanism 5 can roll and dry the coal and rock powder on the upper side of the baffle 8. The crushed and dried coal and rock powder is discharged into the slag collection box 1 under the action of wind;

[0041] When too much coal-rock dust accumulates in the filter sleeve 10, the coal-rock dust on the lower side cannot be effectively dried and discharged, and the coal-rock dust blocks part of the guide holes 11, thereby accelerating the accumulation of coal-rock dust in the filter sleeve 10;

[0042] In this embodiment, when too much coal rock powder accumulates on the baffle 8, the electric sleeve 15 is started to release the blockage of the air flow hole 14, and the negative pressure wind passes through the material guiding mechanism 6 to dry the coal rock powder accumulated on the lower side, thereby increasing the drying rate of the coal rock powder accumulated at the bottom. At the same time, the blockade of the filter screen 16 by the sealing component 9 is released, and the dried coal rock powder is directly discharged from the bottom into the slag collecting box 1, avoiding the accumulation of coal rock powder in the filter sleeve 10.

[0043] like Figure 3 As shown, a dry type slag removal and dust removal device for negative pressure drainage of coal rock powder in a layer drilling is provided by the present invention, wherein the scraper mechanism 4 comprises a gear sleeve 41, a connecting rod 42, a scraper 43, a strip hole 44 and a No. 1 motor 45;

[0044] The gear sleeve 41 is rotatably connected to the outer wall of the inner sleeve 12, and a plurality of connecting rods 42 are fixedly connected to the gear sleeve 41. The connecting rods 42 are fixedly connected with scrapers 43. The scrapers 43 are fitted with the inner wall of the filter sleeve 10. The lower side of the scrapers 43 is vertically provided with strip holes 44. A motor No. 1 45 is fixedly connected to the side wall of the inner sleeve 12, and the gear shaft of the motor No. 1 45 is meshed with the gear sleeve 41.

[0045] In this embodiment, the No. 1 motor 45 is started, and the No. 1 motor 45 drives the gear sleeve 41 to rotate. The gear sleeve 41 drives all the scrapers 43 to move through the connecting rod 42. All the scrapers 43 scrape the coal rock powder on the inner wall of the filter sleeve 10 together to avoid clogging of the guide hole 11 on the filter sleeve 10.

[0046] like Figure 7 As shown, a dry slag and dust removal device for negative pressure drainage of coal rock powder in layer drilling provided by the present invention, the roller pressing mechanism 5 includes a roller 51 and a roller pressure strip 52, the roller 51 is rotatably connected to the scraper 43, and the outer wall of the roller 51 is fixedly connected with a plurality of roller pressure strips 52, and an electric heater is arranged in the roller 51.

[0047] In this embodiment, each scraper 43 can drive a roller 51 to move synchronously, and all the rolling strips 52 on the roller 51 roll and dry the coal rock powder on the upper side of the baffle 8.

[0048] like Figure 4As shown in the figure, a negative-pressure drainage dry slag removal and dust removal device for coal and rock powder in bedding-drilling provided by the present invention, the feeding mechanism 6 includes an electric telescopic rod 61, a pushing blade 62, a second motor 63 and a belt transmission pair 64;

[0049] The fixed part of the electric telescopic rod 61 is rotatably connected to the baffle 8. An electric heater is provided in the electric telescopic rod 61. The telescopic end of the electric telescopic rod 61 is spirally provided with a pushing blade 62. The bottom surface of the baffle 8 is fixedly provided with a second motor 63. There is a belt transmission pair 64 between the second motor 63 and the fixed part of the electric telescopic rod 61.

[0050] In this embodiment, in the filter sleeve 10, after being roll-pressed and crushed by the roll-pressing mechanism 5, the coal and rock powder above the baffle 8 enters the inner sleeve 12 through the feed hole 13. The second motor 63 is started. The second motor 63 drives the electric telescopic rod 61 to rotate through the belt transmission pair 64. The electric telescopic rod 61 drives the pushing blade 62 to push the coal and rock powder upward. At the same time, the electric heater in the electric telescopic rod 61 dries the coal and rock powder. The dried coal and rock powder is dropped from the upper end of the inner sleeve 12. Then, under the action of negative-pressure wind, the crushed and dried coal and rock powder drifts from the filter sleeve 10 into the diversion holes 11.

[0051] As Figure 6 shown in the figure, a negative-pressure drainage dry slag removal and dust removal device for coal and rock powder in bedding-drilling provided by the present invention, a plurality of air holes 14 are provided at both the upper and lower ends of the electric telescopic rod 61. The electric sleeve 15 is fixedly connected inside the electric telescopic rod 61. A retaining seat 17 is fixedly provided at the top of the electric telescopic rod 61.

[0052] In this embodiment, when coal and rock powder accumulates above the baffle 8, the first motor 45 is started at this time. The first motor 45 drives all the scraping plates 43 to move to the lower sides of the corresponding position sensors 18 respectively. The first motor 45 is started to drive all the scraping plates 43 to swing near the lower sides of the corresponding position sensors 18. At this time, the scraping plates 43 close some of the upper diversion holes 11, so that the negative-pressure wind is concentrated to blow from some of the lower diversion holes 11 in the filter sleeve 10 to the slag collection box 1, increasing the blowing effect of the wind on the accumulated coal and rock powder;

[0053] And at this time, the electric sleeve 15 is started to contract. The electric sleeve 15 releases the seal of the air holes 14 on the lower side of the electric telescopic rod 61. At this time, the negative-pressure wind enters the filter sleeve 10 from the feed pipe 20. Then, part of the negative-pressure wind enters the electric telescopic rod 61 from the air holes 14 on the upper side of the electric telescopic rod 61. The negative-pressure wind in the electric telescopic rod 61 is blown out from all the air holes 14 on the lower side of the electric telescopic rod 61 after being heated, so as to heat and blow the accumulated coal and rock powder on the lower side;

[0054] During this process, since all the scrapers 43 swing near the lower side of the corresponding position sensor 18, the rollers 51 connected to the scrapers 43 reciprocate around the periphery of the feed hole 13. The rollers 51 drive all the roller pressure strips 52 to roll the coal rock powder. At the same time, the rollers 51 can also crush the coal rock powder accumulated on the lower side through the roller pressure strips 52, so that a guide channel is formed between the feed hole 13 and the guide hole 11 on the lower side, so that the wind force in the electric sleeve rod 61 can pass through the feed hole 13 and blow to the guide hole 11, so that the dried coal rock powder can be blown to the outside of the filter sleeve 10 in time, thereby improving the drying and dispersion speed of the accumulated coal rock powder.

[0055] At this time, the sealing component 9 is started to release the seal of the filter screen 16, and the coal rock powder accumulated on the lower side of the inner sleeve 12 can be exported to the outside of the filter sleeve 10 through the filter screen 16.

[0056] Furthermore, at this time, the No. 2 motor 63 is stopped to drive the electric sleeve rod 61 to rotate, and the electric sleeve rod 61 is started to reciprocate and extend. The coal rock powder accumulated on the electric sleeve rod 61 can be accelerated to fall, and then the coal rock powder is quickly discharged from the filter screen 16 on the lower side to the outside of the filter sleeve 10, thereby avoiding the accumulation of coal rock powder in the inner sleeve 12, which makes the hot air in the electric sleeve rod 61 unable to diffuse to the outside of the inner sleeve 12.

[0057] like Figure 6 As shown, a negative pressure drainage dry slag and dust removal device for coal and rock powder in layer drilling provided by the present invention is provided, the bulking mechanism 7 includes a bulking sleeve 71 and a guide plate 72, the upper end of the inner sleeve 12 is rotatably connected with the bulking sleeve 71, and a plurality of guide plates 72 are distributed on the side end surface of the bulking sleeve 71, the No. 1 motor 45 is a dual-axis motor, and the two output shafts of the No. 1 motor 45 can rotate asynchronously, and the other gear shaft of the No. 1 motor 45 is meshed with the outer wall of the bulking sleeve 71.

[0058] In this embodiment, the No. 1 motor 45 can drive the bulk material sleeve 71 to rotate, and the guide plate 72 on the bulk material sleeve 71 can evenly disperse the coal rock powder in the inner sleeve 12 into the filter sleeve 10, and then the coal rock powder enters the slag box 1 under the action of negative pressure wind.

[0059] like Figure 4 As shown, a negative pressure drainage dry slag and dust removal device for coal rock powder in layer drilling provided by the present invention, the closing component 9 includes an electric telescopic rod 91 and a sealing plate 92, the electric telescopic rod 91 is fixedly connected to the lower end surface of the baffle 8, the telescopic end of the electric telescopic rod 91 is fixedly connected to the sealing plate 92 through a bracket, and the sealing plate 92 abuts against the filter screen 16.

[0060] In this embodiment, the electric telescopic rod 91 is started to extend, and the electric telescopic rod 91 drives the sealing plate 92 to disengage from the baffle 8, so that the sealing of the filter screen 16 by the sealing plate 92 is released, enabling the coal and rock powder accumulated on the upper side of the baffle 8 to quickly fall into the slag collection box 1.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0062] In addition, it should be understood that although this specification is described according to 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 negative pressure drainage dry slag removal and dust removal device for coal and rock powder in bedding boreholes, comprising a slag collection box (1) and a rubber tube (19). The upper and lower end faces of the slag collection box (1) are respectively provided with a feed pipe (20) and a discharge pipe (21). The slag collection box (1) is communicated with a slag discharge device for conveying coal slag through the feed pipe (20), and is characterized in that, The discharge pipe (21) is sequentially connected to the negative pressure amplification box (2) and the slag discharge box (3) through a rubber pipe (19), and the rubber pipe (19) is connected to the side surface of the slag discharge box (3); A filter sleeve (10) is connected to the inlet pipe (20). A plurality of rows of diversion holes (11) are arranged at intervals on the side end surface of the filter sleeve (10). A baffle (8) is fixedly arranged in the filter sleeve (10). The baffle (8) is fixedly connected with an inner sleeve (12). A plurality of feed holes (13) are arranged at a position close to the bottom of the inner sleeve (12). A retaining net is arranged at each feed hole (13), and each feed hole (13) is directly opposite to a diversion hole (11) on one side; A scraping mechanism (4) is arranged outside the inner sleeve (12). The scraping mechanism (4) can clean the inner wall of the filter sleeve (10). The scraping mechanism (4) is connected with a rolling and pressing mechanism (5). The rolling and pressing mechanism (5) can roll and dry the coal and rock powder on the upper side of the baffle (8). A material guiding mechanism (6) is arranged in the inner sleeve (12). The material guiding mechanism (6) can vertically convey and dry the coal and rock powder. A material scattering mechanism (7) for scattering the coal and rock powder is arranged at the upper part of the inner sleeve (12). A filter net (16) is arranged on the baffle (8), and the baffle (8) is connected with a closing component (9) for closing the filter net (16); A plurality of air flow holes (14) are arranged at both the upper and lower ends of the material guiding mechanism (6). The material guiding mechanism (6) is fixedly connected with an electric sleeve (15), and the electric sleeve (15) can close the air flow holes (14) at the lower end of the material guiding mechanism (6); A plurality of position sensors (18) are arranged on the upper side of the filter sleeve (10), and the position sensors (18) are all arranged on one side of the diversion holes (11).

2. The in-seam drilling coal and rock powder negative pressure drainage dry slag removal and dust removal device according to claim 1, characterized in that The scraping mechanism (4) includes a gear sleeve (41), a connecting rod (42), a scraping plate (43), a strip-shaped hole (44) and a first motor (45); The gear sleeve (41) is rotatably connected to the outer wall of the inner sleeve (12). The gear sleeve (41) is fixedly connected with a plurality of connecting rods (42). The connecting rods (42) are all fixedly connected with scraping plates (43). The scraping plates (43) are attached to the inner wall of the filter sleeve (10). Strip-shaped holes (44) are vertically arranged on the lower sides of the scraping plates (43). A first motor (45) is fixedly connected to the side wall of the inner sleeve (12), and the gear shaft of the first motor (45) meshes with the gear sleeve (41).

3. The dry slag removal and dust collection device with negative pressure drainage for coal and rock powder by bedding drilling according to claim 1, characterized in that, The rolling and pressing mechanism (5) includes a rotating roller (51) and rolling and pressing strips (52). The rotating roller (51) is rotatably connected to the scraping plate (43), and a plurality of rolling and pressing strips (52) are fixedly connected to the outer side wall of the rotating roller (51). An electric heater is arranged in the rotating roller (51).

4. The in-seam drilling coal and rock powder negative pressure drainage dry slag removal and dust removal device according to claim 1, characterized in that, The material guiding mechanism (6) includes an electric telescopic rod (61), a pushing blade (62), a second motor (63) and a belt transmission pair (64); The fixed portion of the electric sleeve rod (61) is rotatably connected to the baffle plate (8), an electric heater is provided in the electric sleeve rod (61), a pusher blade (62) is spirally provided at the telescopic end of the electric sleeve rod (61), a second motor (63) is fixedly provided on the bottom surface of the baffle plate (8), and a belt transmission pair (64) is transmission-connected between the second motor (63) and the fixed portion of the electric sleeve rod (61).

5. The negative pressure drainage dry slag removal and dust removal device for coal and rock powder by bedding drilling according to claim 4, wherein A plurality of air flow holes (14) are provided at both upper and lower ends of the electric sleeve rod (61); the electric sleeve (15) is fixedly connected to the inside of the electric sleeve rod (61); and a stopper (17) is fixedly provided at the top of the electric sleeve rod (61).

6. The negative pressure drainage dry slag removal and dust removal device for coal and rock powder by bedding drilling according to claim 2, characterized in that, The bulk material mechanism (7) comprises a bulk material sleeve (71) and a material guide plate (72); the upper end of the inner sleeve (12) is rotatably connected to the bulk material sleeve (71); a plurality of material guide plates (72) are distributed on the side end surface of the bulk material sleeve (71); the No. 1 motor (45) is a double-shaft motor, and the two output shafts of the No. 1 motor (45) can rotate asynchronously; the other gear shaft of the No. 1 motor (45) is meshed with the outer wall of the bulk material sleeve (71).

7. The negative pressure drainage dry slag removal and dust removal device for coal and rock powder by bedding drilling according to claim 1, wherein The sealing assembly (9) comprises an electric telescopic rod (91) and a sealing plate (92); the electric telescopic rod (91) is fixedly connected to the lower end surface of the baffle (8); the telescopic end of the electric telescopic rod (91) is fixedly connected to the sealing plate (92) via a bracket; the sealing plate (92) abuts against the filter screen (16).

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