Sorting equipment for underground coal gangue of coal mine

Abstract

The separation equipment comprises a machine body and a bottom frame, sleeves are fixed to the four corners of the top of the bottom frame, the top ends of the four sleeves are elastically connected with supporting rods through springs, the bottom ends of the four supporting rods are inserted into the sleeves on the corresponding sides in a sliding mode respectively, and the machine body is fixed to the top ends of the four supporting rods. A vibration motor is installed on one side of the bottom of the machine body. Clean water in the water storage tank is pumped into the spray head and sprayed downwards on coal gangue located on the screen mesh through matched use of the water pump and the water inlet pipe, so that the coal gangue is moistened, dust is reduced, meanwhile, the interior of the machine body is kept moist, it is avoided that the interior of the machine body is too dry to generate more static electricity, and dust static electricity is prevented from being adsorbed on the inner wall of the machine body; a copper wire is arranged in the dust suction pipe, static electricity is guided into the ground through the copper wire, static electricity in the pipeline is reduced, dust can be prevented from being adsorbed on the inner wall of the pipeline, and the pipeline is kept clean.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine screening equipment, in particular to a coal gangue sorting device in a coal mine. Background Art

[0002] Gangue is solid waste discharged during the coal mining and coal washing processes. It is a black-gray rock with a low carbon content and harder than coal that accompanies the coal seam during the coal formation process. It is a type of mining solid waste, including washed gangue from coal washing plants, hand-selected gangue in coal production, coal and rock discharged during semi-coal tunnels and rock tunnels, and a mixture of white gangue outside the coal system piled together with gangue. Mining all the gangue can easily cause the collapse of underground cavities.

[0003] Prior art publication number CN220371591U discloses a coal gangue sorting device in a coal mine, comprising an outer shell, a base, a first lower hopper, a second lower hopper, a feed hopper and a sorting plate, a vibration structure is provided between the outer shell and the base, hoses are installed on the top of the first lower hopper and the second lower hopper, a dust removal structure is fixedly provided on the base, and the hose is connected to the dust removal structure.

[0004] In the above device, the dust near the discharge hopper is only sucked by the cooperation of the vacuum pump and the hose, and the gangue dust will be adsorbed on the inner wall of the screening machine and the inner wall of the hose due to static electricity in a dry environment. The hose will be blocked due to dust accumulation during long-term use and can no longer absorb dust. The dust removal effect is poor, and there is a lot of dust inside the screening machine, which pollutes the environment. Utility Model Content

[0005] The purpose of the utility model is to provide a coal gangue sorting device in a coal mine to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A coal gangue sorting equipment in a coal mine, comprising a machine body and a base frame, wherein sleeves are fixed at the four corners of the top of the base frame, the tops of the four sleeves are elastically connected to support rods through springs, the bottom ends of the four support rods are slidably inserted into the sleeves on the corresponding side respectively, the machine body is fixed to the tops of the four support rods, a vibration motor is installed on one side of the bottom of the machine body, a protective shell is provided on the outside of the vibration motor, a first discharging hopper and a second discharging hopper are fixed on both sides of the machine body respectively, a first dust suction pipe and a second dust suction pipe are fixed on the first discharging hopper and the second discharging hopper respectively, a feed hopper is fixed on one side of the top of the machine body, a spray box is fixed on the side of the top of the machine body close to the feed hopper, the spray box is connected to the inside of the machine body, and a plurality of nozzles are installed in the spray box.

[0008] As a further solution of the utility model: the first dust suction pipe is connected to the interior of the first discharge hopper, the second dust suction pipe is connected to the interior of the second discharge hopper, the first dust suction pipe and the second dust suction pipe are both PU hoses, and copper wire is embedded and wound in the inner wall of the tube body of the first dust suction pipe and the second dust suction pipe, and both ends of the copper wire are grounded.

[0009] As a further solution of the utility model: a dust box is fixed on one side above the base frame, a dust filter is fixed in the middle position inside the dust box, a first air inlet and a second air inlet are respectively provided at the bottom of both sides of the dust box, one end of the first dust suction pipe is fixedly connected to the first air inlet, one end of the second dust suction pipe is fixedly connected to the second air inlet, an air pump is installed above the dust box, the air inlet end of the air pump is inserted into the dust box and the air inlet end of the air pump is provided above the dust filter.

[0010] As a further solution of the utility model: a water storage tank is fixed on one side of the base frame corresponding to the spray box, a water inlet pipe is connected between the water storage tank and the spray box, a water outlet pipe is connected between the water storage tank and the body, and the water inlet ends of the multiple nozzles are connected to one end of the water inlet pipe through a conduit.

[0011] As a further solution of the utility model: a filter residue net is fixed in the middle position inside the water tank, a water pump is installed at the bottom inside the water tank, the water outlet end of the water pump is connected to one end of the water inlet pipe, one end of the water outlet pipe is inserted into the water tank, and the bottom end of the water outlet pipe is located above the filter residue net.

[0012] As a further solution of the utility model: a screen is fixed obliquely on the upper part of the body, and a slide is fixed obliquely on the lower part of the body.

[0013] As a further solution of the utility model: a locking universal wheel is installed at the bottom of the base frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In the utility model, the clean water in the water storage tank is pumped into the nozzle through the coordinated use of the water pump and the water inlet pipe and sprayed downward on the coal gangue located on the screen, so that the coal gangue is moistened and the dust is reduced. At the same time, the inside of the machine body is kept moist, and the inside of the machine body is prevented from being excessively dry and generating more static electricity, and the dust is prevented from being electrostatically adsorbed on the inner wall of the machine body. The sewage after spraying flows back into the water storage tank through the outlet pipe, and is filtered by the filter residue net and then pumped out by the water pump for use again;

[0016] 2. In the utility model, the air pump is started to generate negative pressure in the first dust suction pipe and the second dust suction pipe, so as to attract the gangue dust at the first discharge hopper and the second discharge hopper, and the dust is sucked into the dust collecting box, and filtered through the dust filter, so that the gangue dust is collected at the bottom of the dust collecting box, and the dust is absorbed by the coordinated use of the air pump and the dust suction pipe, so as to prevent the dust from flowing into the air, and further reduce the generation of dust gas;

[0017] 3. In the utility model, dust will be adsorbed on the inner wall of the pipe due to static electricity, which will clog the pipe after long-term use. By arranging copper wire in the dust suction pipe, static electricity is introduced into the ground through the copper wire to reduce the static electricity in the pipe, thereby avoiding the adsorption of dust on the inner wall of the pipe and keeping the pipe clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic structural diagram of the utility model from the first perspective.

[0020] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.

[0021] Figure 3 It is a schematic diagram of the internal structure of the machine body in the utility model.

[0022] Figure 4 It is a schematic diagram of the internal structure of the water storage tank in the utility model.

[0023] Figure 5 It is a schematic diagram of the internal structure of the dust collecting box in the utility model.

[0024] Figure 6 It is a schematic diagram of the improved structure of the dust suction pipe in the utility model.

[0025] Notes on figure numbers: 1-machine body, 2-support rod, 3-spring, 4-sleeve, 5-base frame, 6-locking universal wheel, 7-first dust suction pipe, 8-first discharge hopper, 9-feed hopper, 10-water inlet pipe, 11-spray box, 12-second dust suction pipe, 13-second discharge hopper, 14-dust collecting box, 15-air pump, 16-water storage tank, 17-water outlet pipe, 18-spray head, 19-screen, 20-slide, 21-protective shell, 22-vibration motor, 23-water pump, 24-filter residue net, 25-dust filter net, 26-first air inlet, 27-second air inlet, 28-copper wire. DETAILED DESCRIPTION

[0026] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0027] Example 1

[0028] See also Figures 1-2 In the embodiment of the utility model, a coal gangue sorting device in a coal mine comprises a machine body 1 and a base frame 5, sleeves 4 are fixed at the four corners of the top of the base frame 5, the tops of the four sleeves 4 are elastically connected with support rods 2 through springs 3, the bottom ends of the four support rods 2 are respectively slidably inserted into the sleeves 4 on the corresponding side, the machine body 1 is fixed to the tops of the four support rods 2, and a locking universal wheel 6 is installed at the bottom of the base frame 5. A first discharge hopper 8 and a second discharge hopper 13 are respectively fixed on both sides of the machine body 1, and a first dust suction pipe 7 and a second dust suction pipe 12 are respectively fixed on the first discharge hopper 8 and the second discharge hopper 13. The first dust suction pipe 7 and the inside of the first discharge hopper 8 are connected. The second dust suction pipe 12 is connected to the inside of the second discharge hopper 13, a dust box 14 is fixed on one side above the base frame 5, one end of the first dust suction pipe 7 and the second dust suction pipe 12 are inserted into the dust box 14, an air pump 15 is installed above the dust box 14, one end of the air inlet pipe of the air pump 15 is inserted into the dust box 14; a feed hopper 9 is fixed on one side of the top of the body 1, a spray box 11 is fixed on the side of the top of the body 1 close to the feed hopper 9, a water tank 16 is fixed on the side above the base frame 5 corresponding to the spray box 11, a water inlet pipe 10 is connected between the water tank 16 and the spray box 11, and a water outlet pipe 17 is connected between the water tank 16 and the body 1.

[0029] See also Figure 3 The spray box 11 is connected to the inside of the machine body 1, and a plurality of nozzles 18 are installed in the spray box 11. The water inlet ends of the plurality of nozzles 18 are connected to one end of the water inlet pipe 10 through a conduit. A screen 19 is fixed obliquely at the top of the machine body 1, and a slide 20 is fixed obliquely at the bottom of the machine body 1. A vibration motor 22 is installed on one side of the bottom of the machine body 1, and a protective shell 21 is provided on the outside of the vibration motor 22. The vibration motor 22 is started, and the machine body 1 can be vibrated by cooperating with the support rod 2, the spring 3 and the sleeve 4, so that the coal gangue distributed on the screen 19 is vibrated and screened, and large particles of coal gangue are transported outward from the second discharge hopper 13, and small particles of coal gangue are transported outward from the first discharge hopper 8.

[0030] See also Figures 4-5A filter residue net 24 is fixed in the middle position of the water storage tank 16, and a water pump 23 is installed at the bottom of the water storage tank 16. The water outlet of the water pump 23 is connected to one end of the water inlet pipe 10, and one end of the water outlet pipe 17 is inserted into the water storage tank 16, and the bottom end of the water outlet pipe 17 is located above the filter residue net 24. Through the coordinated use of the water pump 23 and the water inlet pipe 10, the clean water in the water storage tank is pumped into the nozzle 18 and sprayed downward on the coal gangue located on the screen, so that the coal gangue is moistened and dust is reduced. At the same time, the interior of the machine body is kept moist to avoid excessive drying of the interior of the machine body to generate more static electricity, and to avoid static electricity adsorption of dust on the inner wall of the machine body. The sewage after spraying flows back into the water storage tank 16 through the water outlet pipe 17, and is filtered by the filter residue net 24 and then pumped out by the water pump for use again;

[0031] A dust filter 25 is fixed in the middle position inside the dust collecting box 14, and a first air inlet 26 and a second air inlet 27 are respectively provided at the bottom of both sides of the dust collecting box 14, one end of the first dust suction pipe 7 is fixedly connected to the first air inlet 26, and one end of the second dust suction pipe 12 is fixedly connected to the second air inlet 27, the air inlet end of the air pump 15 is inserted into the dust collecting box 14 and the air inlet end of the air pump 15 is arranged above the dust filter 25, and the first air inlet 26 and the second air inlet 27 are arranged below the dust filter 25. Starting the air pump 15 generates negative pressure in the first dust suction pipe 7 and the second dust suction pipe 12, attracting the dust of the coal gangue at the first discharge hopper and the second discharge hopper, sucking the dust into the dust collecting box, filtering it through the dust filter, so that the coal gangue dust is collected at the bottom of the dust collecting box, and the dust is absorbed by the coordinated use of the air pump and the dust suction pipe, etc., to prevent the dust from flowing into the air, thereby further reducing the generation of dust gas.

[0032] Example 2

[0033] See also Figure 6 On the basis of Example 1, the first dust suction tube 7 and the second dust suction tube 12 are made of the same material, both are PU hoses, and copper wire 28 is embedded and wound in the inner wall of the tube body of the first dust suction tube 7 and the second dust suction tube 12. Both ends of the copper wire 28 are grounded. Dust will be adsorbed on the inner wall of the pipe due to static electricity, which will clog the pipe after long-term use. The copper wire 28 is used to introduce static electricity into the ground, reducing the static electricity in the pipe, thereby avoiding the adsorption of dust on the inner wall of the pipe and keeping the pipe clean.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A coal gangue sorting device in a coal mine, comprising a body (1) and a base frame (5), characterized in that: Sleeves (4) are fixed at the four corners of the top of the base frame (5); the top ends of the four sleeves (4) are elastically connected to support rods (2) via springs (3); the bottom ends of the four support rods (2) are respectively slidably inserted into the sleeves (4) on the corresponding side; the machine body (1) is fixed to the top ends of the four support rods (2); a vibration motor (22) is installed on one side of the bottom of the machine body (1); a protective shell (21) is provided on the outside of the vibration motor (22); and both sides of the machine body (1) are respectively A first discharge hopper (8) and a second discharge hopper (13) are respectively fixed thereto, and a first dust suction pipe (7) and a second dust suction pipe (12) are respectively fixed thereto. A feed hopper (9) is fixed to one side of the top of the machine body (1), and a spray box (11) is fixed to one side of the top of the machine body (1) close to the feed hopper (9). The spray box (11) is connected to the interior of the machine body (1), and a plurality of spray heads (18) are installed in the spray box (11).

2. The coal gangue sorting equipment for underground coal mines according to claim 1, characterized in that: The first dust suction pipe (7) is connected to the interior of the first discharge hopper (8), and the second dust suction pipe (12) is connected to the interior of the second discharge hopper (13). The first dust suction pipe (7) and the second dust suction pipe (12) are both PU hoses, and copper wires (28) are embedded and wound in the inner walls of the first dust suction pipe (7) and the second dust suction pipe (12), and both ends of the copper wires (28) are grounded.

3. The coal gangue sorting equipment for underground coal mines according to claim 2, characterized in that: A dust box (14) is fixed on one side above the base frame (5), a dust filter (25) is fixed in the middle of the dust box (14), a first air inlet (26) and a second air inlet (27) are respectively arranged at the bottom of both sides of the dust box (14), one end of the first dust suction pipe (7) is fixedly connected to the first air inlet (26), and one end of the second dust suction pipe (12) is fixedly connected to the second air inlet (27), an air pump (15) is installed above the dust box (14), the air inlet end of the air pump (15) is inserted into the dust box (14) and the air inlet end of the air pump (15) is arranged above the dust filter (25).

4. The coal gangue sorting equipment for underground coal mines according to claim 3, characterized in that: A water storage tank (16) is fixed on one side of the base frame (5) corresponding to the spray box (11); a water inlet pipe (10) is connected between the water storage tank (16) and the spray box (11); a water outlet pipe (17) is connected between the water storage tank (16) and the machine body (1); and water inlet ends of the plurality of spray heads (18) are connected to one end of the water inlet pipe (10) via a conduit.

5. The coal gangue sorting equipment for underground coal mines according to claim 4, characterized in that: A filter residue net (24) is fixed in the middle position inside the water storage tank (16), and a water pump (23) is installed at the bottom inside the water storage tank (16). The water outlet end of the water pump (23) is connected to one end of the water inlet pipe (10), and one end of the water outlet pipe (17) is inserted into the water storage tank (16), and the bottom end of the water outlet pipe (17) is located above the filter residue net (24).

6. The coal gangue sorting equipment for underground coal mines according to claim 5, characterized in that: A screen (19) is fixed at an angle on the upper part of the machine body (1), and a slide plate (20) is fixed at an opposite angle on the lower part of the machine body (1).

7. The coal gangue sorting equipment for underground coal mines according to claim 1 or 6, characterized in that: A locking universal wheel (6) is installed at the bottom of the base frame (5).

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