Dustproof spraying device for fully mechanized coal mining face of coal mine

Abstract

The utility model discloses a dust-proof spraying device for a fully mechanized coal mining face of a coal mine. The dust-proof spraying device comprises a movable dust extraction and falling dust removal mechanism, the dust removal mechanism comprises a hanger rail suspended at the top of the fully-mechanized coal mining roadway, a driving mechanism is mounted on the hanger rail, the driving mechanism comprises a driving frame, driving structures are mounted on the two sides of the upper end of the driving frame respectively, each driving structure comprises a driving motor, and a roller is mounted on an output shaft of each driving motor; rail grooves are respectively formed in the front and rear side walls of the driving frame; a draught hood structure is mounted at the bottom of the driving frame; the dust removal mechanism further comprises a plurality of movably-arranged hanging ring structures, a spring air draft hose is installed at an air outlet of the air draft hood structure, and the spring air draft hose moves along with the air draft hood structure through the hanging ring structures. According to the structure, in the fully-mechanized coal mining process, the cover body structure which is light in weight and small in size of the air draft equipment moves along with the fully-mechanized coal mining equipment, the maneuverability of air draft and dust removal is improved, and synchronous fully-mechanized coal mining and synchronous air draft and dust removal are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of dust control technology in fully mechanized coal mining, and particularly relates to a dust suppression spray device for fully mechanized coal mining faces. Background Technology

[0002] During coal mining, large fully mechanized mining equipment, such as shearing machines, cuts coal along the coal seam in the fully mechanized mining roadway. The cut coal is continuously transported from the fully mechanized mining area through a conveying device. Therefore, during the fully mechanized mining process, a large amount of dust is generated in the fully mechanized mining area as the equipment continuously cuts coal.

[0003] Dust generation not only results in extremely low visibility in fully mechanized mining areas, but also seriously affects the health of construction workers. Therefore, in actual operations, exhaust dust removal devices and spray dust reduction devices are installed in the fully mechanized mining areas for dust extraction and humidification.

[0004] However, most current dust suppression spray systems are fixed installations, relying on strong suction to remove dust from the roadway. But in actual operation, as the longwall mining machine moves forward, the distance between the system and the suction equipment gradually increases, resulting in very low dust removal efficiency. At this point, operators often have to move the dust removal equipment forward. However, moving the equipment is extremely difficult in narrow coal mining roadways. This is due to the narrowness of the roadways and the proximity of coal conveying equipment to the mining face, making operation by moving the equipment very challenging.

[0005] During the relocation process, the ventilation equipment stops, but the fully mechanized mining equipment continues to operate. At this time, a large amount of dust is quickly generated in the roadway, which not only makes it difficult to move the equipment, but also often makes it impossible to move it a long distance in actual operation. Operators can only work in a high-risk environment with a large amount of dust. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a dust suppression spray device for fully mechanized coal mining faces.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dust suppression spray device for a fully mechanized coal mining face includes a movable dust extraction and dust suppression mechanism.

[0009] The dust removal mechanism includes a suspended rail installed at the top of the fully mechanized mining roadway. A drive mechanism is installed on the suspended rail. The drive mechanism includes a drive frame. Drive rollers are installed on both sides of the upper end of the drive frame. The drive structure includes a drive motor. Rollers are installed on the output shaft of the drive motor.

[0010] The front and rear sidewalls of the driving frame are respectively provided with rail grooves, and the top and bottom of the roller respectively abut and roll on the top and bottom of the rail groove;

[0011] The bottom of the driving frame is provided with an air extraction cover structure;

[0012] The dust removal mechanism further comprises a plurality of movably arranged lifting ring structures, and the air outlet of the air extraction cover structure is provided with a spring air extraction hose which moves with the air extraction cover structure through the lifting ring structure.

[0013] Preferably, the top of the hanging rail is fixedly connected with a plurality of anchor fixing rods, and the hanging rail is suspendedly installed at the top position in the roadway through the anchor fixing rods.

[0014] Preferably, the driving frame comprises a U-shaped frame portion, and the top of the U-shaped frame portion is integrally formed with two vertically arranged vertical portions on both sides thereof, and the driving motor is fixedly installed in the installation cavity formed by the vertical portions and the U-shaped frame portion.

[0015] The bottom of the U-shaped frame portion is fixedly connected with a suspension installation arm on both sides thereof.

[0016] The suspension installation arm is fixedly installed on the air extraction cover structure.

[0017] Preferably, the air extraction cover structure comprises a conical cover body portion which is integrally formed with a rectangular cover body portion.

[0018] The suspension installation arm is fixedly installed on the outer sidewall of the rectangular cover body portion.

[0019] Preferably, the rectangular cover body portion is provided with a mounting screw, and the suspension installation arm penetrates from the position of the mounting screw.

[0020] A fastening nut is threadedly connected to the mounting screw.

[0021] Preferably, the bottom of the hanging rail is integrally formed with a bottom rail structure, and the lifting ring structure is slidingly connected in the bottom rail structure.

[0022] The bottom rail structure comprises U-shaped rail portions integrally formed on the front and rear sides of the bottom of the hanging rail, and the inner end length of the U-shaped rail portion is smaller than the outer end length.

[0023] The U-shaped rail portions on the front and rear sides are spaced apart to form a limiting sliding opening.

[0024] Preferably, the lifting ring structure comprises a lifting ring body, a lifting rod is fixedly connected to the top of the lifting ring body, and a sliding seat slidingly connected in the bottom rail structure is fixedly connected to the top of the lifting rod.

[0025] Preferably, the front and rear side walls of the sliding seat are respectively rotationally connected with a plurality of small rollers, which slide in the U-shaped rail part;

[0026] The bottom of the sliding seat is provided with limiting openings on both sides, which limit sliding in the inner end of the U-shaped rail part; a sliding convexity is integrally formed between the limiting openings at the bottom of the sliding seat, which limits sliding in the limiting sliding opening;

[0027] The suspender is fixed at the bottom of the sliding convexity.

[0028] Preferably, an internal flow channel is formed in the rectangular cover body part;

[0029] The bottom of the rectangular cover body part is connected with a plurality of spray heads, and the outer side wall of the rectangular cover body part is connected with a pump water inlet pipe.

[0030] The utility model has the following beneficial effects:

[0031] 1. The structure of the dust extraction cover is moved along with the operation of the fully mechanized mining equipment through the driving motor, the roller and the suspension rail structure during the working process, and long-distance synchronous dust extraction is realized during the long-distance fully mechanized mining process of the fully mechanized mining equipment. The advantages of this mode are that the technical defects of the difficulty of long-distance moving of the dust extraction equipment in the narrow roadway during the traditional dust extraction process and the technical defects of the difficulty of moving are solved. By moving the cover body part, the flexibility of dust extraction is increased, the difficulty of dust extraction is reduced, and timely dust extraction is realized during the fully mechanized operation process, so that the technical defect of dust diffusion in the roadway is avoided.

[0032] 2. The spring dust extraction hose matched with the dust extraction cover structure is supported on a plurality of suspender bodies in sections, and during the working process, the spring dust extraction hose also moves in a suspended state along with the movement of the cover body structure. During the movement, the small rollers on the sliding seat roll and move, so that the flexibility of movement is also high, and the resistance of movement is small. The upper bottom rail structure and the sliding seat are matched with each other on the sliding structure, and the stability of sliding movement is higher. The stability and flexibility of the movement of the cover body structure are further improved by this mode. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained from the structures shown in the drawings without creative labor for those skilled in the art.

[0034] Fig. 1 It is a whole structure schematic view in the embodiments of the utility model;

[0035] Fig. 2 Figure 1 is a structural schematic diagram of a bottom track structure in an embodiment of the present application;

[0036] Fig. 3 Figure 2 is a structural schematic diagram of a driving mechanism in an embodiment of the present application;

[0037] Fig. 4 Figure 3 is a structural schematic diagram of a nozzle in an embodiment of the present application;

[0038] Fig. 5 Figure 4 is a structural schematic diagram of a rectangular cover body part in which an internal flow channel is formed in an embodiment of the present application;

[0039] Fig. 6 Figure 5 is a structural schematic diagram of a lifting ring body supporting a spring and a suction hose in an embodiment of the present application.

[0040] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0043] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0044] Embodiment 1

[0045] As Figs. 1-6As shown, a kind of coal mine fully mechanized working face dust spray device, including the dust removal mechanism of mobile dust extraction and dust fall;Through the self-moving of dust removal mechanism, the dust removal mechanism is moved synchronously with fully mechanized equipment during working process, and the dust removal mechanism corresponding to fully mechanized equipment is moved to suck and remove the dust generated by the operation of fully mechanized equipment quickly.

[0046] Specifically, the dust removal mechanism includes a hanging rail 4 (the longitudinal section shape is H-shaped) suspended and installed at the top position of the fully mechanized roadway, and a plurality of anchor fixing rods 41 are fixedly connected to the top of the hanging rail 4 according to the conventional rail suspension installation method disclosed in the prior art, and the hanging rail 4 is suspended and installed at the top position in the roadway through the anchor fixing rod 41. The specific anchoring method is: according to the existing rail hoisting installation method, the anchor fixing rod 41 is designed to include a screw rod part welded at the top position of the rail, and the screw rod part is threadedly connected with an anchor pipe, and the anchor pipe is threadedly connected to the expansion screw rod pre-driven in the roadway to realize anchoring.

[0047] The rail is made of light and portable aluminum alloy material.

[0048] The driving mechanism 3 is installed on the hanging rail 4, and the driving mechanism 3 includes a driving frame 32, and driving rollers are installed on both sides of the upper end of the driving frame 32 to form a driving structure at the side position of the hanging rail 4, and the driving structure includes a driving motor 33, and a roller 34 is installed on the output shaft of the driving motor 33.

[0049] Specifically, the driving frame 32 includes a U-shaped frame part, and vertical parts are integrally formed on both sides of the top of the U-shaped frame part, and the driving motor 33 is fixedly installed in the installation cavity formed by the vertical part and the U-shaped frame part. At the same time, the output shaft of the driving motor 33 is rotatably connected to the vertical part, and the roller 34 is fixedly installed.

[0050] In order to increase the stability during movement, a rail groove (the rail shape is H-shaped) is formed on the front and rear sidewalls of the driving frame 32, and the top and bottom of the roller 34 are respectively in contact with the groove top and groove bottom of the rail groove.

[0051] During operation, the driving rollers 34 are synchronously driven to rotate by the driving motors 33 on both sides, and because the top and bottom of the roller 34 are in contact with the groove top and groove bottom, the stability of rolling is high. During rolling and traction, the fully mechanized equipment is moved.

[0052] The driving frame 32 is provided with an air suction cover structure, so that the air suction cover structure moves with the dust removal.

[0053] Specifically, the bottom of the U-shaped frame part is fixedly connected with a suspension mounting arm 31 on both sides; the suspension mounting arm 31 is fixedly installed on the air suction cover structure.

[0054] The shape of the air exhaust cover structure is that the air exhaust cover structure comprises a conical cover body part 1 integrally formed with a rectangular cover body part 2, and a suspension mounting arm 31 is fixedly mounted on the outer side wall of the rectangular cover body part 2. The specific mounting mode is that a mounting screw is mounted on the rectangular cover body part 2, and the suspension mounting arm 31 penetrates from the mounting screw position; and a fastening nut is threadedly connected to the mounting screw.

[0055] The top of the conical cover body part 1 is integrally formed with a cylindrical pipe part, and a flange plate is welded at the pipe opening part of the cylindrical pipe part, so that the spring air exhaust hose (the air exhaust cover of the prior art is provided with a spring air exhaust hose at the air exhaust pipe opening position) used in cooperation with the air exhaust cover structure is realized during the working process. The spring air exhaust hose is a spring air exhaust hose used in cooperation with the air exhaust cover. The other end of the spring air exhaust hose is mounted on the air exhaust fan.

[0056] The spring air exhaust hose has sufficient length during the working process, so that the air exhaust cover structure has sufficient movement freedom during the working process.

[0057] The air exhaust cover structure is moved along with the operation of the fully mechanized mining equipment through the driving motor 33, the roller 34 and the suspension rail 4 structure during the working process, so that the long-distance synchronous movement of dust removal is realized during the long-distance fully mechanized mining process in cooperation with the fully mechanized mining equipment. The advantages of this mode are that the technical defects of the difficulty of long-distance movement of the air exhaust and dust removal equipment in the narrow roadway and the difficulty of movement during the traditional air exhaust and dust removal process are solved. By moving the cover body part, the flexibility of air exhaust and dust removal is increased and the difficulty of air exhaust and dust removal is reduced, and the technical defect of dust escaping from the roadway is avoided during the fully mechanized mining process.

[0058] Embodiment 2

[0059] As shown in Figs. 1-6 In order to realize the synchronous movement of the spring air exhaust hose A used in cooperation with the air exhaust cover along with the cover body structure, the dust removal mechanism further comprises a plurality of hoisting ring structures movably arranged, and the spring air exhaust hose A installed at the cylindrical pipe part of the air outlet (i.e. the top of the conical cover body part 1 is integrally formed with a cylindrical pipe part, and the cylindrical pipe part is the air outlet of the cover body structure) of the air exhaust cover structure moves along with the air exhaust cover structure through the hoisting ring structure.

[0060] Specifically, the bottom of the suspension rail 4 is integrally formed with a bottom rail structure; the hoisting ring structure is slidably connected in the bottom rail structure; and the bottom rail structure comprises U-shaped rail parts 42 integrally formed at the front and rear sides of the bottom of the suspension rail 4, respectively, and the inner end 422 of the U-shaped rail part 42 is shorter than the outer end.

[0061] Meanwhile, a limiting slide 421 is formed between the front and rear U-shaped rail sections 42 at intervals.

[0062] The aforementioned lifting ring structure includes a lifting ring body 51, with a lifting rod 52 fixedly connected to the top of the lifting ring body 51. A slide block 53, slidably connected within a bottom track structure, is fixedly connected to the top of the lifting rod 52. Several small rollers 54 are rotatably connected to the front and rear side walls of the slide block 53, and these rollers 54 slide within a U-shaped track section 42. Limiting openings 532 are provided on both sides of the bottom of the slide block 53, and these limiting openings 532 are slidably limited on the inner end 422 of the U-shaped track section 42. A sliding protrusion 531, integrally formed at the bottom position of the slide block 53, is formed between the limiting openings 532, and this protrusion 531 is slidably limited within the limiting opening 421. The lifting rod 52 is fixed at the bottom position of the sliding protrusion 531.

[0063] In the implementation of the above structural design, the spring-loaded exhaust hose A, which is used in conjunction with the exhaust hood structure, is supported in sections on multiple lifting rings 51. Following existing methods, the spring-loaded exhaust hose A is fixed to the lifting rings 51, such as by binding with wire. During operation, when the hood structure moves, the spring-loaded exhaust hose A also moves in a suspended state. During movement, it rolls along with the small rollers 54 on the slide block 53, thus exhibiting high flexibility and low resistance. Furthermore, the bottom track structure of the above structure provides greater stability during sliding along the slide block 53. This method further improves the stability and flexibility of the hood structure's movement.

[0064] Example 3

[0065] like Figs. 1-6 As shown, in this embodiment, based on the structure of embodiment 2, in order to achieve dust suppression by spraying during the dust extraction process, an internal flow channel 231 is provided inside the rectangular cover 2 (the transverse cross-sectional shape of the internal flow channel 231 is rectangular); the bottom of the rectangular cover 2 is connected to a plurality of nozzles 62 (the structure is the same as that of the existing nozzles 62, the top of the nozzles 62 is connected to a connecting tube, and the connecting tube is fastened to the mounting hole 211 opened in the rectangular cover 2 (the mounting hole 211 is a threaded mounting hole, which connects to the internal flow channel 231, and the connecting tube is threadedly connected to the mounting hole 211). The nozzles 62 are conventional water mist nozzles 62 disclosed in the prior art. The outer wall of the rectangular cover 2 is connected to a water pump inlet pipe 61.

[0066] During operation, following the existing spray dust suppression method, the water inlet pipe 61 is connected to the external water pump hose (not shown in the figure). Similarly, the water pump hose is used in the same way as the spring exhaust hose A, and is also suspended and fixed by the lifting ring 51. During operation, water mist is sprayed from the nozzle 62 to humidify and suppress dust.

[0067] Of course, the above description is not a limitation of the utility model, the utility model is also not limited to the above examples, the changes, modifications, additions or replacements made by the person skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A dust-proof spraying device for a fully-mechanized coal mining face, characterized in that, The dust removal mechanism comprises a movable dust removal device; The dust removal mechanism comprises a hanging rail suspended at the top of the fully mechanized roadway, a driving mechanism mounted on the hanging rail, a driving frame, driving rollers mounted on both sides of the upper end of the driving frame, driving structures mounted on the side of the hanging rail, driving motors, and rollers mounted on the output shaft of the driving motor. Rail grooves are formed on the front and rear sidewalls of the driving frame, and the top and bottom of the roller are respectively in contact with the groove top and groove bottom of the rail groove. The driving frame is provided with an air extraction cover structure at the bottom. The dust removal mechanism further comprises a plurality of moving ring structures, a spring air extraction hose is mounted on the air outlet of the air extraction cover structure, and the spring air extraction hose moves with the air extraction cover structure through the ring structure.

2. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 1, characterized in that, The top of the hanging rail is fixedly connected with a plurality of anchor fixing rods, and the hanging rail is suspended at the top of the roadway through the anchor fixing rods.

3. The coal mine fully mechanized coal mining face dust prevention and spraying device according to claim 1, characterized in that, The driving frame comprises a U-shaped frame portion, vertical portions are integrally formed on both sides of the top of the U-shaped frame portion, and the driving motor is fixedly installed in the installation cavity formed by the vertical portion and the U-shaped frame portion. The bottom of the U-shaped frame portion is fixedly connected with a suspension mounting arm on both sides. The suspension mounting arm is fixedly installed on the air extraction cover structure.

4. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 3, characterized in that, The air extraction cover structure comprises a conical cover body portion and a rectangular cover body portion. The suspension mounting arm is fixedly installed on the outer sidewall of the rectangular cover body portion.

5. The coal mine fully mechanized coal mining face dust prevention and spraying device according to claim 4, characterized in that, An installation screw is mounted on the rectangular cover body portion, and the suspension mounting arm penetrates from the installation screw position. A fastening nut is threadedly connected to the installation screw.

6. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 1, characterized in that, The bottom of the hanging rail is integrally formed with a bottom rail structure, and the ring structure is slidably connected in the bottom rail structure. The bottom rail structure comprises U-shaped rail portions integrally formed on the front and rear sides of the bottom of the hanging rail, and the inner end length of the U-shaped rail portion is less than the outer end length. The U-shaped rail portions are spaced apart to form a limiting sliding opening.

7. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 6, characterized in that, The ring structure comprises a ring body, a suspension rod fixedly connected to the top of the ring body, and a sliding seat slidably connected in the bottom rail structure at the top of the suspension rod.

8. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 7, characterized in that, A plurality of small rollers are rotatably connected to the front and rear sidewalls of the sliding seat, and the small rollers slide in the U-shaped rail portion. Limiting openings are formed on both sides of the bottom of the sliding seat, the limiting openings are slidably located in the inner end of the U-shaped rail portion, and a sliding convex portion is integrally formed on the bottom of the sliding seat between the limiting openings. The suspension rod is fixed at the bottom of the sliding convex portion.

9. The coal mine fully mechanized coal mining face dust prevention and spray device according to claim 4, characterized in that, An internal flow channel is formed in the rectangular cover body portion. A plurality of nozzles are communicated with the bottom of the rectangular cover body portion, and a pump water inlet pipe is communicated with the outer sidewall of the rectangular cover body portion.

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