CN216361016U

CN216361016U - Pneumatic filling device for coal mine goaf

Info

Publication number: CN216361016U
Application number: CN202122899519.6U
Authority: CN
Inventors: 王开松; 许欢; 徐记顺; 张亮
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2021-11-24
Filing date: 2021-11-24
Publication date: 2022-04-22
Anticipated expiration: 2031-11-24

Abstract

The utility model relates to the technical field of coal mining, and discloses a pneumatic filling device for a coal mine goaf, which comprises a bottom plate, wherein a material box is fixedly connected to the outer wall of the middle part of the top of the bottom plate, a first opening is formed in the outer wall of the top of the material box, a feeding hopper is fixedly connected to the inner wall of the first opening, a discharging pipe is arranged on the inner side of the material box and communicated with the feeding hopper, a screen plate is fixedly connected to the inner wall of one side of the top of the material box and located right below the discharging pipe, a partition plate is fixedly connected to the inner wall of the bottom of the material box, and the top end of the partition plate is fixed to the outer wall of one side of the bottom of the screen plate. According to the utility model, through the driving motor, the rotating shaft, the fixed rod and the scraper plate which are arranged in the blanking pipe, the residual filling materials on the inner wall of the blanking pipe can be effectively cleaned, so that the filling materials can be fully utilized, the blocking phenomenon can be prevented, and the device is practical and suitable for wide popularization and use.

Description

Pneumatic filling device for coal mine goaf

Technical Field

The utility model relates to the technical field of coal mining, in particular to a pneumatic filling device for a coal mine goaf.

Background

Coal mine goaf: the method is characterized in that in the coal mine operation process, cavities or cavities left after underground coal or coal gangue and the like are mined have the characteristics of strong invisibility, poor regularity of spatial distribution characteristics, difficulty in predicting caving and collapse conditions of a goaf roof and the like, and in order to prevent surface subsidence, eliminate production hidden troubles and ensure the safety of operating personnel in a pit, the goaf needs to be timely and planned to be processed (such as filling or caving sealing and the like).

Through retrieval publication No. CN213392252U discloses a pnematic filling device of coal mine collecting space area, including feeder hopper, stirring storehouse and the gas charging room that from top to bottom connects gradually the setting, install the stirring vane wheel in the stirring storehouse, the stirring vane wheel is rotatory by pneumatic motor drive, is provided with the bottom plate of slope in the gas charging room, is connected with the intake pipe and the discharging pipe of upper and lower next-door neighbour's setting on the lateral wall of gas charging room, design science, rational in infrastructure, convenient to use, the operation is stable, the pay-off is effectual.

However, the inventor finds that the technical scheme still has at least the following defects: in the process of filling material and carrying, remaining material can not obtain better processing on the feeder hopper, has the emergence of jam to the effectual collection effect is lacked to the residue after filtering in the filling material, and the staff of being not convenient for is concentrated and is handled.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pneumatic filling device for a coal mine goaf, which solves the problem of blockage in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a pneumatic filling device for a coal mine goaf comprises a bottom plate, wherein a material box is fixedly connected to the outer wall of the middle of the top of the bottom plate, a first opening is formed in the outer wall of the top of the material box, a feeding hopper is fixedly connected to the inner wall of the first opening, a discharging pipe is arranged on the inner side of the material box and is communicated with the feeding hopper, a screen plate is fixedly connected to the inner wall of one side of the top of the material box and is located right below the discharging pipe, a partition plate is fixedly connected to the inner wall of the bottom of the material box, and the top end of the partition plate is fixed to the outer wall of one side of the bottom of the screen plate;

the material box is characterized in that a second opening is formed in the outer wall of one side of the material box, an air inlet pipe is fixedly connected to the inner wall of the second opening, the air inlet pipe is located below the screen plate, a flow guide block of a triangular structure is fixedly connected to the outer wall of one end of the screen plate, a slag hole is formed in the outer wall of one side of the bottom of the material box, a material collecting box is slidably connected to the inner wall of the bottom of the slag hole, a push-pull disc is fixedly connected to the outer wall of one side of the material collecting box, and the material collecting box is in contact with the outer wall of one side of the bottom of the partition plate.

As a preferred embodiment of the utility model, the outer side of the bottom plate is provided with symmetrically arranged rollers, the outer wall of one side of the top of the bottom plate is fixedly connected with a pushing frame, the inner wall of one side of the material box is fixedly connected with a triangular drainage plate, and the drainage plate is positioned above the material collecting box.

As a preferred embodiment of the utility model, the inner wall of the bottom of the material box is fixedly connected with a guide seat, the guide seat is fixed on the outer wall of one side of the partition plate, the outer wall of one side of the bottom of the material box is provided with a discharge port, the discharge port is positioned on one side of the guide seat, the outer wall of one side of the bottom of the material box is fixedly connected with a discharge plate, and the discharge plate is positioned on one side of the discharge port.

As a preferred embodiment of the utility model, the outer wall of the top of the screen plate is connected with a cleaning plate in a sliding manner, the inner wall of one side of the material box is fixedly connected with an electric push rod, and a piston rod of the electric push rod is connected to the outer wall of one side of the cleaning plate.

As a preferred embodiment of the present invention, the inner wall of the top of the blanking tube is rotatably connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with two fixing rods, and one end of each fixing rod is fixedly connected with a scraper, and the two scrapers are respectively contacted with the inner walls of the two sides of the blanking tube.

As a preferred embodiment of the present invention, the inner wall of the bottom of the blanking tube is fixedly connected with a driving motor and a protective cover, the driving motor is located inside the protective cover, an output shaft of the driving motor penetrates through the protective cover through a coupler and is connected to the bottom end of the rotating shaft, the bottom end of the blanking tube is provided with symmetrically arranged flow guide holes, and the two flow guide holes are located on two sides of the protective cover respectively.

In a preferred embodiment of the present invention, the driving motor and the electric push rod are connected to a switch through a wire, and the switch is connected to a controller through a wire.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the pneumatic filling device for the coal mine goaf, the driving motor, the rotating shaft, the fixing rod and the scraper are arranged in the blanking pipe, so that the residual filling materials on the inner wall of the blanking pipe can be effectively cleaned, the filling materials can be fully utilized, and the blocking phenomenon can be prevented.

2. According to the pneumatic filling device for the coal mine goaf, the arranged screen plate can be used for filtering filling materials, the filtered residues stay on the screen plate, then the cleaned residues can be cleaned through the arranged flow guide block, the arranged flow guide plate and the material collecting box under the action of the cleaning plate and the electric push rod, and the cleaned residues fall into the material collecting box, so that a worker can conveniently pull the material collecting box out of a slag outlet under the action of the push-pull disc for centralized treatment.

3. According to the pneumatic filling device for the coal mine goaf, the air inlet pipe, the guide seat, the discharge hole and the discharge plate are arranged, compressed air is conveyed to the air inlet pipe through the oil-water separator and the air path, the compressed air is used as power, filling materials on the guide seat are discharged from the discharge hole and the discharge plate and conveyed to the coal mine goaf for filling, and therefore the pneumatic filling effect for the coal mine goaf is achieved.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic perspective view of a pneumatic filling device for a goaf of a coal mine according to the present invention;

FIG. 2 is a schematic cross-sectional structural view of a material tank of the pneumatic filling device for a coal mine goaf, provided by the utility model;

FIG. 3 is a schematic sectional structural view of a blanking pipe of the pneumatic filling device for a coal mine goaf.

In the figure: 1. a base plate; 2. a material box; 3. a roller; 4. a pushing frame; 5. an air inlet pipe; 6. a feed hopper; 7. a discharge plate; 8. a slag outlet; 9. a push-pull disc; 10. a discharge port; 11. a discharging pipe; 12. a screen plate; 13. a flow guide block; 14. a drainage plate; 15. a material collecting box; 16. a guide seat; 17. cleaning the plate; 18. an electric push rod; 19. a rotating shaft; 20. a drive motor; 21. a protective cover; 22. fixing the rod; 23. a squeegee; 24. and (4) flow guide holes.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a pneumatic filling device in coal mine goaf, comprising a base plate 1, bottom plate 1 top middle part outer wall fixedly connected with material case 2, first opening has been seted up to material case 2 top outer wall, and first opening inner wall fixedly connected with feeder hopper 6, material case 2 inboard is equipped with unloading pipe 11, unloading pipe 11 and feeder hopper 6 are linked together, pour the filling material into material case 2 through the effect of feeder hopper 6 and unloading pipe 11, material case 2 top one side inner wall fixedly connected with sieve plate 12, and sieve plate 12 is located unloading pipe 11 under, the material falls into to sieve plate 12 through unloading pipe 11, the cubic residue that contains in the material stops on sieve plate 12, thereby can reach better filter effect to the material, material case 2 bottom inner wall fixedly connected with baffle, and the baffle top is fixed on sieve plate 12 bottom one side outer wall;

the second opening has been seted up to 2 one side outer walls of material case, and second opening inner wall fixedly connected with intake pipe 5, intake pipe 5 is located sieve mesh plate 12 below, sieve mesh plate 12 one end outer wall fixedly connected with triangle-shaped structure's water conservancy diversion piece 13, slag notch 8 has been seted up to 2 bottom one side outer walls of material case, 8 bottom inner wall sliding connection of slag notch has the workbin 15 that gathers materials, 15 one side outer wall fixedly connected with of workbin that gathers materials pushes away the drawing disk 9, and gather materials workbin 15 and baffle bottom one side outer wall and contact, the staff will gather materials workbin 15 and pull out from 8 interior slag notches through the effect that pushes away the drawing disk 9, be convenient for carry out centralized processing to the residue of collecting.

Referring to fig. 1-2, in a specific embodiment, rollers 3 are symmetrically arranged on the outer side of the bottom of a bottom plate 1, a pushing frame 4 is fixedly connected to the outer wall of one side of the top of the bottom plate 1, and the material tank 2 is conveniently moved to a proper position to be filled at a coal mine goaf under the action of the bottom plate 1, the rollers 3 and the pushing frame 4, a triangular-structured drainage plate 14 is fixedly connected to the inner wall of one side of the material tank 2, the drainage plate 14 is located above a material collecting box 15, a guide seat 16 is fixedly connected to the inner wall of the bottom of the material tank 2, the guide seat 16 is fixed to the outer wall of one side of a partition plate, filtered materials fall onto the guide seat 16 from a screen plate 12, a discharge port 10 is formed in the outer wall of one side of the bottom of the material tank 2, the discharge port 10 is located on one side of the guide seat 16, a discharge plate 7 is fixedly connected to the outer wall of one side of the bottom of the material tank 2, and the discharge plate 7 is located on one side of the discharge port 10, compressed air carries to intake pipe 5 through oil-water separator and gas circuit, utilize compressed air as power, discharge from discharge gate 10 and play flitch 7 with the packing material on the guide holder 16, and carry and fill to coal mine goaf department, thereby reach the effect of pnematic packing to coal mine goaf, sieve plate board 12 top outer wall sliding connection has

cleaning plate

17, 2 one side inner wall fixedly connected with electric putter 18 of material case, and electric putter's 18 piston rod is connected on cleaning plate 17 one side outer wall, start electric putter 18 work, promote cleaning plate 17 and slide on sieve plate board 12, can be with the residue through leading-in to the case of collecting 15 of effect of water conservancy diversion piece 13 and drainage plate 14.

Referring to fig. 2-3, further, a rotating shaft 19 is rotatably connected to an inner wall of a top of the discharging tube 11, two fixing rods 22 are fixedly connected to an outer wall of the rotating shaft 19, a scraper 23 is fixedly connected to one end of each fixing rod 22, the two scrapers 23 respectively contact inner walls of two sides of the discharging tube 11, a driving motor 20 and a protective cover 21 are fixedly connected to an inner wall of a bottom of the discharging tube 11, the driving motor 20 is located inside the protective cover 21, the driving motor 20 is started to operate, the driving motor 20 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the scrapers 23 to slide on the inner wall of the discharging tube 11 under the action of the fixing rods 22, so that residual materials on the inner wall of the discharging tube 11 can be scraped, the filling materials can be fully utilized, and the occurrence of the blocking phenomenon can be prevented, the driving motor 20 and the electric push rod 18 are both connected with a switch through a wire, and the switch is connected with a controller through a wire, the controller model is AQMD3620NS, and the output shaft of driving motor 20 passes through in the bottom that the protection casing 21 is connected at axis of rotation 19 through the shaft coupling, and the water conservancy diversion hole 24 that the symmetry set up is seted up to blanking pipe 11 bottom, and two water conservancy diversion holes 24 are located the protection casing 21 both sides respectively.

It should be noted that the utility model relates to a pneumatic filling device for a coal mine goaf, each of which is a universal standard component or a component known to those skilled in the art, and the structure and principle of the pneumatic filling device can be known to those skilled in the art through technical manuals or through conventional experimental methods.

The working principle is as follows: when the material box is used, firstly, under the action of the bottom plate 1, the rollers 3 and the pushing frame 4, the material box 2 is moved to a proper position to be filled at a coal mine goaf, then the filling material is poured into the material box 2 under the action of the feed hopper 6 and the blanking pipe 11, at the moment, the driving motor 20 is started to work, the driving motor 20 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the scraper 23 to slide on the inner wall of the blanking pipe 11 under the action of the fixing rod 22, the residual material on the inner wall of the blanking pipe 11 can be scraped, the filling material can be fully utilized, the blockage phenomenon can be prevented, the material falls onto the screen plate 12 through the blanking pipe 11, the blocky residue contained in the material stays on the screen plate 12, so that the material can achieve a better filtering effect, then the electric push rod 18 is started to work, the cleaning plate 17 is pushed to slide on the screen plate 12, can be with the residue through the leading-in to the workbin 15 that gathers materials of effect of water conservancy diversion piece 13 and drainage plate 14, then through the effect of push-and-pull dish 9 will gather materials workbin 15 and pull out in from slag notch 8, the staff of being convenient for carries out centralized processing to it, material after the filtration falls into on guide holder 16 from sieve plate 12, and simultaneously, compressed air carries to intake pipe 5 through oil-water separator and gas circuit, utilize compressed air as power, the filling material with on the guide holder 16 is discharged from discharge gate 10 and play flitch 7, and carry and fill to coal mine goaf department, thereby reach pnematic filled effect to coal mine goaf, so far reach the safeguard effect to coal mine goaf.

Claims

1. The utility model provides a pnematic filling device of coal mine collecting space area which characterized in that: the material box comprises a bottom plate (1), wherein a material box (2) is fixedly connected to the outer wall of the middle of the top of the bottom plate (1), a first opening is formed in the outer wall of the top of the material box (2), a feeding hopper (6) is fixedly connected to the inner wall of the first opening, a discharging pipe (11) is arranged on the inner side of the material box (2), the discharging pipe (11) is communicated with the feeding hopper (6), a screen plate (12) is fixedly connected to the inner wall of one side of the top of the material box (2), the screen plate (12) is located under the discharging pipe (11), a partition plate is fixedly connected to the inner wall of the bottom of the material box (2), and the top end of the partition plate is fixed to the outer wall of one side of the bottom of the screen plate (12);

the material case (2) one side outer wall has seted up the second opening, and second opening inner wall fixedly connected with intake pipe (5), intake pipe (5) are located sieve mesh plate (12) below, sieve mesh plate (12) one end outer wall fixedly connected with triangle-shaped structure's water conservancy diversion piece (13), slag notch (8) have been seted up to material case (2) bottom one side outer wall, slag notch (8) bottom inner wall sliding connection has the case (15) that gathers materials, the case (15) one side outer wall fixedly connected with that gathers materials pushes away draws dish (9), and gathers materials case (15) and the outer wall of baffle bottom one side and contact.

2. The pneumatic filling device of the coal mine goaf according to claim 1, characterized in that: the material collecting box is characterized in that rollers (3) are symmetrically arranged on the outer side of the bottom plate (1), a pushing frame (4) is fixedly connected to the outer wall of one side of the top of the bottom plate (1), a drainage plate (14) of a triangular structure is fixedly connected to the inner wall of one side of the material box (2), and the drainage plate (14) is located above the material collecting box (15).

3. The pneumatic filling device of the coal mine goaf according to claim 1, characterized in that: the material case (2) bottom inner wall fixedly connected with guide holder (16), and guide holder (16) fix on baffle one side outer wall, discharge gate (10) have been seted up to material case (2) bottom one side outer wall, and discharge gate (10) are located guide holder (16) one side, material case (2) bottom one side outer wall fixedly connected with goes out flitch (7), and goes out flitch (7) and be located discharge gate (10) one side.

4. The pneumatic filling device of the coal mine goaf according to claim 1, characterized in that: the outer wall of the top of the screen plate (12) is connected with a cleaning plate (17) in a sliding mode, the inner wall of one side of the material box (2) is fixedly connected with an electric push rod (18), and a piston rod of the electric push rod (18) is connected to the outer wall of one side of the cleaning plate (17).

5. The pneumatic filling device of coal mine goaf according to claim 4, characterized in that: the inner wall of the top of the blanking pipe (11) is rotatably connected with a rotating shaft (19), the outer wall of the rotating shaft (19) is fixedly connected with two fixing rods (22), one ends of the two fixing rods (22) are fixedly connected with scraping plates (23), and the scraping plates (23) are respectively contacted with the inner walls of two sides of the blanking pipe (11).

6. The pneumatic filling device of coal mine goaf according to claim 5, characterized in that: unloading pipe (11) bottom inner wall fixedly connected with driving motor (20) and protection casing (21), and driving motor (20) are located protection casing (21) inboard, the output shaft of driving motor (20) runs through in protection casing (21) and connects in the bottom of axis of rotation (19) through the shaft coupling, the water conservancy diversion hole (24) that the symmetry set up are seted up to unloading pipe (11) bottom, and two water conservancy diversion holes (24) are located protection casing (21) both sides respectively.

7. The pneumatic filling device of coal mine goaf according to claim 6, characterized in that: the driving motor (20) and the electric push rod (18) are both connected with a switch through a lead, and the switch is connected with a controller through a lead.