Spraying and dust settling device for mining height working face coal mining machine

Abstract

The utility model relates to the technical field of spraying and dust-settling devices for coal mining machines, and discloses a spraying and dust-settling device for a mining height working face coal mining machine, which comprises a base. According to the spraying and dust-settling device for the mining height working face coal mining machine, through the arrangement of the sealing mechanism, the sealing box, the filtering mechanism and the water purifying tank, when the spraying and dust-settling device is used, an external water source enters the water purifying tank, and impurities are filtered by two groups of filtering nets arranged in the water purifying tank; then the water pump conveys the water into the atomization spray head through a hose and carries out dust falling treatment on the surrounding environment, the filter screen can be taken out of the water purifying tank by pulling a handle to be cleaned and replaced regularly, normal use of the filtering effect is ensured, and when the equipment is idle, a hydraulic rod can be started to move the atomization spray head into a sealing box to be stored; and then the sealing plate is pushed to store the atomization nozzle in the sealing box, so that the atomization nozzle is prevented from being blocked due to long-term exposure in a coal mine environment, and normal use of equipment is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of spray dust reduction devices for coal mining machines, in particular to a spray dust reduction device for coal mining machines on high working faces. Background Art

[0002] When the coal mining machine is cutting coal at the high-mining working face, the dust generation of the working face is the largest and most concentrated period. During the coal mining process, the picks on the drum of the coal mining machine continuously cut the coal wall and the gangue of the roof and bottom plates. The continuous friction is easy to produce sparks. The high-concentration coal dust generated when cutting the coal wall is easy to explode when it encounters fire, posing a serious threat to the on-site workers. Since the coal seam of the Daliu Coal Mine is a three-soft coal seam, the coal seam does not have the conditions for water injection before the working face is mined. When the coal mining machine is working, the internal spray pressure shall not be less than 2MPa, and the external spray pressure shall not be less than 4MPa. The spray flow rate shall match the machine model. Coal mining must be stopped when there is no water or the spray device is damaged. The large-mining hydraulic support is pulled forward as the coal mining machine cuts coal, and the spray device in front of the frame automatically turns on dust reduction. Although we have taken the above dust reduction measures, the dust concentration in the air remains high during the actual production of the working face, and the flammability and explosiveness of coal dust and the health hazards to on-site workers cannot be effectively controlled.

[0003] The spraying angles of existing spray dust suppression devices for coal mining machines are mostly fixed and difficult to adjust, which can easily cause inconvenience to workers when performing dust suppression at different angles. Secondly, when the equipment is idle, the surface of the nozzle does not have a dust-proof structure. In a coal mine environment with severe dust, exposing the nozzle to the air can easily cause nozzle blockage, affecting the normal use of the nozzle. Therefore, a spray dust suppression device for a coal mining machine with a high mining face is proposed.

[0004] A spray dust suppression device for a high-mining working face coal mining machine disclosed in the announcement number CN217300574U, although, the spray dust suppression device for a high-mining working face coal mining machine, now proposes the following scheme, including a bottom plate, a first fixing seat is welded at the center position of the outer wall on both sides of the bottom plate, a first connecting groove is opened on the top of the first fixing seat, a second fixing seat is welded at both the front and rear ends of the top of the bottom plate, a second connecting groove is opened on the top of the second fixing seat, a right vertical plate is welded on the right side of the top of the bottom plate, a left vertical plate is welded on the left side of the top of the bottom plate, an opening is opened at one end of the right vertical plate, and a water inlet pipe is arranged in the opening. After the new dust suppression spray device of the utility model was put into operation on site, by comparison, the air visibility on the return air side of the coal mining machine when cutting coal was significantly improved, which was more conducive to the safe operation of the coal mining machine driver, and the dust was completely curbed from the dust source, which greatly reduced the danger of dust explosion, significantly reduced the dust concentration, improved safety and reliability, and further reduced the degree of health hazards.

[0005] Although the above patent has achieved significantly improved air visibility on the return air side of the coal mining machine when it is cutting coal, which is more conducive to the safe operation of the coal mining machine driver, and completely curbs dust from the source of dust production, greatly reducing the risk of dust explosion, the dust concentration is significantly reduced, the safety and reliability are improved, and the degree of health hazards is further reduced; however, the device lacks filtration of external water sources, which can easily cause blockage of the nozzle or the inside of the pipeline, seriously affecting the normal operation of the equipment.

[0006] Therefore, it is necessary to invent a spray dust reduction device for a high working face coal mining machine to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a spray dust reduction device for a high-mining face coal mining machine which is highly practical, can be simply operated and has a relatively simple structure, thereby solving the problem of lack of filtering of external water sources raised in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a spray dust suppression device for a coal mining machine with a high mining working face, comprising a base, the top of the base is threadedly connected to a U-shaped frame, the top of the U-shaped frame is fixedly connected to a support frame, the surface of the support frame is provided with two groups of placement grooves, the interior of the placement groove is fixedly connected to a hydraulic rod, one end of the hydraulic rod is rotatably connected to an angle adjustment mechanism, the right side of the support frame is fixedly connected to an extension plate, the surface of the extension plate is threadedly connected to a sealing box, the inner wall of the sealing box is provided with a slide groove, the interior of the slide groove is slidably connected to a sealing mechanism, the edge of one side of the top surface of the base is fixedly connected to a support block, the surface of the support block is threadedly connected to a water pump, the output end of the water pump is connected to the interior of the angle adjustment mechanism through a hose, the input end of the water pump is connected to a clean water tank, the interior of the clean water tank is provided with two groups of slide grooves, and the interior of the slide groove is slidably connected to a filtering mechanism.

[0011] As a further solution of the utility model, the angle adjustment mechanism includes a fixed joint rotatably connected to one end of the hydraulic rod, a flow pipe is fixedly connected to one side of the fixed joint, and an atomizing nozzle is connected to the top of the flow pipe to facilitate dust reduction.

[0012] As a further solution of the utility model, the sealing mechanism includes a sealing plate slidably connected to the inside of the slide groove, and a pull ring is fixedly connected to the surface of the sealing plate, and the pull ring facilitates the sealing plate to be pulled out.

[0013] As a further solution of the utility model, the filtering mechanism includes a filter screen slidably connected to the inside of the slide groove, and a handle is fixedly connected to the top of the filter screen, and the handle is convenient for taking out the filter screen.

[0014] As a further solution of the utility model, a water inlet pipe is fixedly connected to one side of the clean water tank, and a flange is fixedly connected to the surface of the water inlet pipe, and the flange is convenient for connecting to an external water tank.

[0015] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the U-shaped frame, and the internal threads of the threaded holes are connected with threaded columns, which are convenient for fixing the U-shaped frame.

[0016] As a further solution of the utility model, four groups of threaded holes are opened on the surface of the base, and the internal threads of the threaded holes are connected with bolts, which are convenient for improving the stability of the equipment.

[0017] (III) Beneficial effects

[0018] The utility model provides a spray dust reduction device for a coal mining machine at a high working face, which has the following beneficial effects:

[0019] 1. The spray dust reduction device for the high-mining working face coal mining machine is equipped with a sealing mechanism, a sealing box, a filtering mechanism and a clean water tank. When in use, external water enters the clean water tank and is filtered for impurities by two sets of filters arranged inside the clean water tank. Then, the water is pumped to the atomizing nozzle through a hose and the surrounding environment is subjected to dust reduction treatment. Moreover, the filter can be taken out of the clean water tank by pulling the handle for regular cleaning and replacement to ensure the normal use of the filtering effect. Secondly, when the equipment is idle, the hydraulic rod can be started to move the atomizing nozzle to the sealing box for storage, and then the sealing plate can be pushed to store the atomizing nozzle in the sealing box to avoid long-term exposure to the coal mine environment, which may cause blockage of the atomizing nozzle and affect the normal use of the equipment.

[0020] 2. The spray dust suppression device for the high-mining working face coal mining machine is equipped with an angle adjustment mechanism and a hydraulic rod. When in use, the hydraulic rod is started, and the hydraulic rod retracts and drives the flow pipe on the fixed joint on one side to swing, thereby achieving the effect of adjusting the angle of the atomizing nozzle on the top of the flow pipe, expanding the spraying range, to adapt to different working face layouts and needs, and ensuring a wide and uniform coverage area. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the angle adjustment mechanism structure of the utility model;

[0023] Figure 3This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0024] Figure 4 This is a schematic diagram of the U-shaped frame structure of the utility model.

[0025] In the figure: 1. base; 2. U-shaped frame; 3. support frame; 4. hydraulic rod; 5. angle adjustment mechanism; 501. fixed joint; 502. circulation pipe; 503. atomizing nozzle; 6. extension plate; 7. sealing box; 8. sealing mechanism; 801. sealing plate; 802. pull ring; 9. support block; 10. water pump; 11. clean water tank; 12. filtering mechanism; 1201. filter net; 1202. handle; 13. water inlet pipe; 14. flange; 15. threaded column; 16. bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a spray dust suppression device for a coal mining machine with a high mining working face, comprising a base 1, a U-shaped frame 2 is threadedly connected to the top of the base 1, a support frame 3 is fixedly connected to the top of the U-shaped frame 2, two groups of placement grooves are opened on the surface of the support frame 3, a hydraulic rod 4 is fixedly connected to the inside of the placement groove, one end of the hydraulic rod 4 is rotatably connected to an angle adjustment mechanism 5, and the angle adjustment mechanism 5 and the hydraulic rod 4 are arranged to adapt to different working face layouts and requirements to ensure a wide and uniform coverage area, an extension plate 6 is fixedly connected to the right side of the support frame 3, a sealing box 7 is threadedly connected to the surface of the extension plate 6, and the sealing box The inner wall of the base 7 is provided with a slide groove, and a sealing mechanism 8 is slidably connected inside the slide groove. The sealing mechanism 8, the sealing box 7, the filtering mechanism 12, and the clean water tank 11 are arranged to avoid long-term exposure to the coal mine environment, which may cause the atomizing nozzle 503 to be blocked and affect the normal use of the equipment. A support block 9 is fixedly connected to the edge of one side of the top surface of the base 1, and a water pump 10 is threadedly connected to the surface of the support block 9. The output end of the water pump 10 is connected to the inside of the angle adjustment mechanism 5 through a hose, and the input end of the water pump 10 is connected to the clean water tank 11. Two sets of slide grooves are provided inside the clean water tank 11, and the filter mechanism 12 is slidably connected inside the slide groove;

[0028] See also Figure 2 The angle adjustment mechanism 5 includes a fixed joint 501 rotatably connected to one end of the hydraulic rod 4, a flow pipe 502 is fixedly connected to one side of the fixed joint 501, and an atomizing nozzle 503 is connected to the top of the flow pipe 502, and the atomizing nozzle 503 is convenient for dust reduction;

[0029] See also Figure 2 The sealing mechanism 8 includes a sealing plate 801 slidably connected to the inside of the slide groove, and a pull ring 802 is fixedly connected to the surface of the sealing plate 801, and the pull ring 802 facilitates the sealing plate 801 to be pulled out;

[0030] See also Figure 3 The filter mechanism 12 includes a filter screen 1201 slidably connected to the inside of the slide slot, and a handle 1202 is fixedly connected to the top of the filter screen 1201, and the handle 1202 is convenient for taking out the filter screen 1201;

[0031] See also Figure 3 A water inlet pipe 13 is fixedly connected to one side of the clean water tank 11, and a flange 14 is fixedly connected to the surface of the water inlet pipe 13, and the flange 14 is convenient for connecting to an external water tank;

[0032] See also Figure 4 The surface of the U-shaped frame 2 is provided with four groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns 15, which are convenient for fixing the U-shaped frame 2;

[0033] See also Figure 4 Four groups of threaded holes are provided on the surface of the base 1, and the internal threads of the threaded holes are connected with bolts 16, which are convenient for improving the stability of the equipment.

[0034] In the utility model, the working steps of the device are as follows:

[0035] The first step: when in use, the external water source enters the clean water tank 11, and is filtered for impurities by the two sets of filter screens 1201 set inside the clean water tank 11, and then is transported to the atomizing nozzle 503 through the hose by the water pump 10 and performs dust reduction treatment on the surrounding environment, and the filter screen 1201 can be taken out of the clean water tank 11 by pulling the handle 1202 for regular cleaning and replacement to ensure the normal use of the filtering effect, and secondly, when the equipment is idle, the hydraulic rod 4 can be started to move the atomizing nozzle 503 to the sealing box 7 for storage, and then the sealing plate 801 can be pushed to store the atomizing nozzle 503 in the sealing box 7;

[0036] The second step: when in use, the hydraulic rod 4 is started, the hydraulic rod 4 is extended and retracted, and drives the flow tube 502 on the fixed joint 501 on one side to swing, and the angle of the atomizing nozzle 503 on the top of the flow tube 502 is adjusted to expand the spraying range.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spray dust suppression device for a high-mining working face coal mining machine, comprising a base (1), characterized in that: The top of the base (1) is threadedly connected to a U-shaped frame (2), the top of the U-shaped frame (2) is fixedly connected to a support frame (3), the surface of the support frame (3) is provided with two groups of placement grooves, the interior of the placement groove is fixedly connected to a hydraulic rod (4), one end of the hydraulic rod (4) is rotatably connected to an angle adjustment mechanism (5), the right side of the support frame (3) is fixedly connected to an extension plate (6), the surface of the extension plate (6) is threadedly connected to a sealing box (7), the inner wall of the sealing box (7) is provided with A slide groove, wherein the interior of the slide groove is slidably connected to a sealing mechanism (8), an edge of one side of the top surface of the base (1) is fixedly connected to a support block (9), a surface of the support block (9) is threadedly connected to a water pump (10), an output end of the water pump (10) is connected to the interior of the angle adjustment mechanism (5) through a hose, an input end of the water pump (10) is connected to a clean water tank (11), two groups of slide grooves are provided inside the clean water tank (11), and a filtering mechanism (12) is slidably connected to the interior of the slide groove.

2. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: The angle adjustment mechanism (5) comprises a fixed joint (501) rotatably connected to one end of the hydraulic rod (4); a circulation pipe (502) is fixedly connected to one side of the fixed joint (501); and an atomizing nozzle (503) is connected through the top of the circulation pipe (502).

3. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: The sealing mechanism (8) comprises a sealing plate (801) slidably connected to the interior of the slide groove, and a pull ring (802) is fixedly connected to the surface of the sealing plate (801).

4. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: The filtering mechanism (12) comprises a filtering net (1201) slidably connected to the interior of the sliding groove, and a handle (1202) is fixedly connected to the top of the filtering net (1201).

5. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: A water inlet pipe (13) is fixedly connected to one side of the clean water tank (11), and a flange (14) is fixedly connected to the surface of the water inlet pipe (13).

6. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the U-shaped frame (2), and threaded columns (15) are connected to the inner threads of the threaded holes.

7. The spray dust suppression device for a high-mining working face coal mining machine according to claim 1, characterized in that: Four groups of threaded holes are provided on the surface of the base (1), and bolts (16) are threadedly connected to the inner surfaces of the threaded holes.

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