Coal machine airborne curtain secondary negative pressure dust falling device

Abstract

The present application discloses a coal machine airborne curtain secondary negative pressure dust falling device, which belongs to the technical field of coal mining and comprises a bottom plate, a fixing seat fixedly connected to the outer wall of the bottom plate, an installation hole formed in the surface of the fixing seat, a first supporting plate fixedly connected to one side of the upper surface of the bottom plate, a supporting rod rotatably connected to the inner side of the bottom plate close to the first supporting plate, a spray pipe fixedly connected to the end of the supporting rod away from the first supporting plate, a nozzle fixedly sleeved with the top of the spray pipe, a second supporting plate fixedly connected to the upper surface of the bottom plate away from the first supporting plate, and a water inlet pipe rotatably connected to the inside of the second supporting plate. The coal machine airborne curtain secondary negative pressure dust falling device can solve the problem that the dust concentration in the ambient air is still high during production, the coal dust generated in the production process cannot be effectively controlled, the coal dust is flammable and explosive and has occupational hazards, and the on-site operators are seriously threatened.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, specifically to a secondary negative pressure dust suppression device for coal mining machinery with an onboard curtain. Background Technology

[0002] Modern coal mining faces employ methods for dust reduction and suppression, including high-pressure water injection into the coal seam, internal and external spraying of the coal mining machine, and spraying between supports. However, during production, the concentration of dust in the ambient air remains high, and the coal dust generated during production cannot be effectively controlled. The flammability, explosiveness, and occupational hazards of coal dust pose a serious threat to on-site workers, thus necessitating the use of a secondary negative pressure dust suppression device mounted on the coal mining machine. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a secondary negative pressure dust suppression device for coal mining machinery with an onboard curtain, which solves the problem that the dust concentration in the ambient air remains high during production, the coal dust generated during production cannot be effectively controlled, and the flammability, explosiveness, and occupational hazards of coal dust pose a serious threat to on-site workers.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a secondary negative pressure dust suppression device for coal mining machinery, comprising a base plate, a fixed seat fixedly connected to the outer wall of the base plate, mounting holes formed on the surface of the fixed seat, a first support plate fixedly connected to one side of the upper surface of the base plate, a support rod rotatably connected to the side of the first support plate near the interior of the base plate, a spray pipe fixedly connected to the end of the support rod away from the first support plate, a nozzle fixedly sleeved at the top of the spray pipe, a second support plate fixedly connected to the upper surface of the base plate away from the first support plate, a water inlet pipe rotatably connected to the interior of the second support plate, a fixed sleeved end of the water inlet pipe near the spray pipe and the side of the spray pipe away from the support rod, an adjustment mechanism provided between the sides of the spray pipe and the first support plate that are close to each other, a filtration mechanism provided on the side of the second support plate away from the spray pipe, and a clamping mechanism provided on the side of the filtration mechanism away from the second support plate.

[0005] Preferably, there are four fixing seats and four mounting holes, located on the four sides of the outer wall of the base plate.

[0006] Preferably, there are multiple nozzles arranged in an equidistant array.

[0007] Preferably, the adjusting mechanism includes a limiting cylinder and a toothed disc. The bottom of the limiting cylinder is fixedly connected to the upper surface of the base plate. A sliding rod is slidably connected to the inner wall of the limiting cylinder. A toothed block is fixedly connected to the end of the sliding rod away from the limiting cylinder. A first tension spring is sleeved on the outer wall of the limiting cylinder. The two ends of the first tension spring are connected to the toothed block. A fixing rod is fixedly connected to the front of the toothed block. The outer wall of the toothed disc is fixedly sleeved with the outer wall of the support rod. The outer wall of the toothed disc meshes with the top of the toothed block.

[0008] Preferably, the filtration mechanism includes a fixed frame, the side of the fixed frame near the second support plate being fixedly connected to the outer wall of the second support plate away from the spray pipe, the end of the water inlet pipe away from the spray pipe being connected to the interior of the fixed frame, the outer wall of the water inlet pipe being sealed and rotatably connected to the side of the fixed frame near the second support plate, a limit frame being fixedly connected to the inner wall of the fixed frame near the second support plate, a filter frame being slidably connected to the inner wall of the fixed frame, a sponge being placed inside the filter frame, a frame cover being threadedly connected to the inner wall of the fixed frame away from the second support plate, a rubber ring being fixedly connected to the side of the frame cover near the second support plate, the rubber ring being located between the side of the frame cover and the filter frame that are close to each other, a sleeve being fixedly fitted inside the frame cover, and both ends of the sleeve being connected to the outer sides of the frame cover.

[0009] Preferably, the outer wall of the frame cover is provided with threads, the inner wall of the fixing frame away from the second support plate is provided with threads, the threads on the outer wall of the frame cover match the threads on the inner wall of the fixing frame, and the vertical cross section of the frame cover is convex.

[0010] Preferably, the clamping mechanism includes a sliding plate and a fixed sleeve. The inner wall of the sliding plate is slidably connected to the outer wall of the sleeve. A second tension spring is fixedly connected to the side of the sliding plate near the frame cover. The second tension spring is sleeved on the outer wall of the sleeve. A compression tube is fixedly connected to the side of the sliding plate away from the frame cover. The fixed sleeve is fixedly sleeved on the outer wall of the sleeve, and the outer wall of the fixed sleeve is slidably connected to the inner wall of the compression tube. A clamping block is slidably connected inside the fixed sleeve. The side of the clamping block near the inner wall of the compression tube is slidably connected to the inner wall of the compression tube. A protrusion is fixedly connected to the clamping block inside the fixed sleeve.

[0011] Preferably, the clamping block is inclined near the inner wall of the extrusion tube, the extrusion tube is inclined near the inner wall of the clamping block, and the two inclined surfaces are the same. A slider is fixedly connected to the clamping block near the inner wall of the extrusion tube. A groove is opened on the inclined surface of the extrusion tube, and the slider fixedly connected to the clamping block is placed in the groove opened on the inclined surface of the extrusion tube.

[0012] Preferably, there are multiple protrusions arranged in a rectangular equidistant array, and there are multiple clamping blocks arranged in a circular equidistant array at the center points of the fixing sleeve.

[0013] Beneficial effects

[0014] This invention provides a secondary negative pressure dust suppression device for coal mining machinery with an onboard curtain system. Compared with existing technologies, it has the following advantages:

[0015] 1. The secondary negative pressure dust suppression device for the coal mining machine's onboard curtain has mounting holes on the surface of the fixed base, which facilitates the fixing of the base plate. At the same time, the water inlet pipe is connected to an external water source, so the spray pipe can easily spray water from the nozzle, thereby realizing secondary negative pressure dust suppression for the onboard curtain. Furthermore, the spray pipe is movable, which facilitates the adjustment of its direction.

[0016] 2. The secondary negative pressure dust suppression device of the coal mining machine's onboard curtain, through the set adjustment mechanism, allows the spray pipe to be adjusted in direction by moving the fixed rod towards the bottom plate, thereby moving the toothed block away from the toothed disc, which facilitates the rotation of the spray pipe. After the spray pipe is adjusted in direction, because the toothed block meshes with the toothed disc, the toothed disc can be limited by the toothed block under the tension of the first tension spring, thus achieving a fixed limit after the spray pipe is adjusted in direction.

[0017] 3. The secondary negative pressure dust suppression device of the coal mining machine's onboard curtain connects the sleeve to the external water source through a hose and connects the frame cover to the inner wall of the fixed frame through a threaded connection. This allows the sleeve to deliver water to the inside of the fixed frame, and the water can be filtered through the filter frame and sponge, avoiding the problem of nozzle blockage caused by impurities in the water. It also facilitates the cleaning of impurities filtered inside the fixed frame.

[0018] 4. The secondary negative pressure dust suppression device of the coal mining machine's onboard curtain, through the clamping mechanism, allows the squeezing tube to squeeze the clamping block under the tension of the second tension spring via the sliding plate. This, combined with the protrusion, presses and clamps the hose connected to the external water source of the casing, thus preventing the external water source pipe from detaching. Furthermore, when it is necessary to remove the external water source hose, the sliding plate squeezes the second tension spring, causing the clamping block to move away from the outer wall of the casing, effectively allowing the hose to be removed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a top view of the base plate structure of the present invention;

[0021] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point B;

[0023] Figure 5 For the present invention Figure 1 Enlarged structural diagram at point C.

[0024] In the diagram: 1. Base plate; 2. Fixing seat; 3. Mounting hole; 4. First support plate; 5. Support rod; 6. Spray pipe; 7. Nozzle; 8. Second support plate; 9. Water inlet pipe; 10. Adjustment mechanism; 101. Limiting cylinder; 102. Sliding rod; 103. First tension spring; 104. Tooth block; 105. Fixing rod; 106. Toothed disc; 11. Filtering mechanism; 111. Fixing frame; 112. Limiting frame; 113. Filtering frame; 114. Sponge; 115. Rubber ring; 116. Sleeve; 117. Frame cover; 12. Clamping mechanism; 121. Second tension spring; 122. Sliding plate; 123. Extrusion tube; 124. Clamping block; 125. Fixing sleeve; 126. Protrusion. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention provides a technical solution: a secondary negative pressure dust suppression device for coal mining machinery with onboard curtain curtain;

[0027] Example 1, please refer to Figure 1 , Figure 2 The system includes a base plate 1, a fixing seat 2 fixedly connected to the outer wall of the base plate 1, mounting holes 3 on the surface of the fixing seat 2, a first support plate 4 fixedly connected to one side of the upper surface of the base plate 1, a support rod 5 rotatably connected to the side of the first support plate 4 near the inside of the base plate 1, a spray pipe 6 fixedly connected to the end of the support rod 5 away from the first support plate 4, a nozzle 7 fixedly sleeved on the top of the spray pipe 6, a second support plate 8 fixedly connected to the upper surface of the base plate 1 away from the first support plate 4, a water inlet pipe 9 rotatably connected to the inside of the second support plate 8, a fixed sleeved end of the water inlet pipe 9 near the spray pipe 6 and the side of the spray pipe 6 away from the support rod 5, an adjustment mechanism 10 is provided between the sides of the spray pipe 6 and the first support plate 4 that are close to each other, a filter mechanism 11 is provided on the side of the second support plate 8 away from the spray pipe 6, and a clamping mechanism 12 is provided on the side of the filter mechanism 11 away from the second support plate 8. There are four fixing seats 2 and four mounting holes 3, located on the four sides of the outer wall of the base plate 1, and multiple nozzles 7 arranged in an equidistant array.

[0028] Firstly, the base plate 1 is fixedly connected to the outer walls of both sides and the front and back sides by fixing seats 2, and each fixing seat 2 has a mounting hole 3 on its top, thus effectively and conveniently fixing the base plate 1. A first support plate 4 is fixedly connected to the upper surface of the base plate 1, which supports the support rod 5 and the spray pipe 6. The support rod 5 can rotate with the first support plate 4. A second support plate 8 is fixedly connected to the other side of the upper surface of the base plate 1, which supports the water inlet pipe 9. The water inlet pipe 9 supports the other side of the spray pipe 6 and can be connected to an external water source. At the same time, the water inlet pipe 9 can deliver water into the spray pipe 6. The top of the spray pipe 6 has multiple nozzles 7, thus effectively enabling the water inside the spray pipe 6 to be sprayed from the nozzles 7, thereby achieving the dust suppression effect.

[0029] Example 2, please refer to Figure 1 , Figure 3 The adjusting mechanism 10 includes a limiting cylinder 101 and a gear plate 106. The bottom of the limiting cylinder 101 is fixedly connected to the upper surface of the base plate 1. A sliding rod 102 is slidably connected to the inner wall of the limiting cylinder 101. A tooth block 104 is fixedly connected to one end of the sliding rod 102 away from the limiting cylinder 101. A first tension spring 103 is sleeved on the outer wall of the limiting cylinder 101. The two ends of the first tension spring 103 are connected to the tooth block 104. A fixing rod 105 is fixedly connected to the front of the tooth block 104. The outer wall of the gear plate 106 is fixedly sleeved with the outer wall of the support rod 5. The outer wall of the gear plate 106 meshes with the top of the tooth block 104.

[0030] When the spray pipe 6 needs to rotate, the fixed rod 105 can drive the toothed block 104 to press down and press the sliding rod 102 into the limiting cylinder 101. The toothed block 104 can also press the first tension spring 103, thus moving the fixed rod 105 away from the outer wall of the toothed disc 106, allowing the spray pipe 6 to rotate. When the spray pipe 6 does not need to rotate, the fixed rod 105 is released. Under the tension of the first tension spring 103, and with the top of the toothed block 104 meshing with the outer wall of the toothed disc 106, the toothed block 104 effectively limits the toothed disc 106. The toothed disc 106 then limits the support rod 5, effectively preventing the spray pipe 6 from rotating. This makes it easier to fix the spray pipe 6 after adjusting its angle when the nozzle 7 is dust suppression.

[0031] Example 3, please refer to Figure 1 , Figure 4The filtration mechanism 11 includes a fixed frame 111. The side of the fixed frame 111 closest to the second support plate 8 is fixedly connected to the outer wall of the side of the second support plate 8 away from the spray pipe 6. The end of the water inlet pipe 9 away from the spray pipe 6 is connected to the interior of the fixed frame 111. The outer wall of the water inlet pipe 9 is rotatably and sealingly connected to the side of the fixed frame 111 closest to the second support plate 8. A limit frame 112 is fixedly connected to the inner wall of the fixed frame 111 closest to the second support plate 8. A filter frame 113 is slidably connected to the inner wall of the fixed frame 111. A sponge 114 is placed inside the filter frame 113. The fixed frame 111 is located away from the second support plate. A frame cover 117 is threadedly connected to one side of the inner wall of the second support plate 8. A rubber ring 115 is fixedly connected to the side of the frame cover 117 near the second support plate 8. The rubber ring 115 is located between the side of the frame cover 117 and the filter frame 113 that are close to each other. A sleeve 116 is fixedly sleeved inside the frame cover 117. The two ends of the sleeve 116 are connected to the outside of both sides of the frame cover 117. The outer wall of the frame cover 117 is threaded. The inner wall of the fixed frame 111 away from the second support plate 8 is threaded. The thread on the outer wall of the frame cover 117 matches the thread on the inner wall of the fixed frame 111. The vertical section of the frame cover 117 is convex.

[0032] The filter mechanism 11 is configured to provide a sealed rotatable connection between the outer wall of the inlet pipe 9 and the side of the fixed frame 111 near the second support plate 8. A sleeve 116 allows water to be connected to an external water source at one end of the frame cover 117, thus enabling water to be delivered to the interior of the fixed frame 111. The threads on the outer wall of the frame cover 117 match the threads on its inner wall, effectively connecting the frame cover 117 to the fixed frame 111 and sealing the interior of the fixed frame 111. A limit frame 112 is fixedly connected to the inner wall of the fixed frame 111 near the second support plate 8. The outer wall of the limiting frame 112 is slidably connected to the inner wall of the fixed frame 111. A sponge 114 is placed inside the filter frame 113, which can filter the water entering the water inlet pipe 9 to prevent it from containing dust and dirt, and also prevent the nozzle 7 from being blocked. A rubber ring 115 is fixedly connected to the side of the frame cover 117 near the second support plate 8. Therefore, the rubber ring 115 is effectively placed between the sponge 114 and the frame cover 117, thus effectively sealing the frame cover 117 and the filter frame 113, preventing water inside the fixed frame 111 from flowing out from the threaded seam between the frame cover 117 and the fixed frame 111.

[0033] Example 4, please refer to Figure 1 , Figure 5The clamping mechanism 12 includes a sliding plate 122 and a fixed sleeve 125. The inner wall of the sliding plate 122 is slidably connected to the outer wall of the sleeve 116. A second tension spring 121 is fixedly connected to the side of the sliding plate 122 near the frame cover 117 and is sleeved on the outer wall of the sleeve 116. A compression tube 123 is fixedly connected to the side of the sliding plate 122 away from the frame cover 117. The fixed sleeve 125 is fixedly sleeved on the outer wall of the sleeve 116, and the outer wall of the fixed sleeve 125 is slidably connected to the inner wall of the compression tube 123. A clamping block 124 is slidably connected inside the fixed sleeve 125. The side of the clamping block 124 near the inner wall of the compression tube 123 is connected to the compression tube 123. The inner wall of tube 123 is slidably connected. The clamping block 124 is located inside the fixed sleeve 125 and is fixedly connected with protrusions 126. The clamping block 124 is inclined near the inner wall of the extrusion tube 123. The extrusion tube 123 is inclined near the inner wall of the clamping block 124, and the two inclined surfaces are the same. The clamping block 124 is fixedly connected to the inner wall of the extrusion tube 123. The inclined surface of the extrusion tube 123 is provided with a groove. The slider fixedly connected to the clamping block 124 is placed in the groove provided on the inclined surface of the extrusion tube 123. There are multiple protrusions 126, which are arranged in a rectangular equidistant array. There are multiple clamping blocks 124, and the center points of the fixed sleeve 125 are arranged in a ring equidistant array.

[0034] The clamping mechanism 12 is configured so that the sliding plate 122 is slidably connected to the inner wall of the sleeve 116. Therefore, under the tension of the second tension spring 121, the sliding plate 122 can move away from the frame cover 117. A fixed sleeve 125 is fixedly sleeved on the outer wall of the sleeve 116. At the same time, the inclined surface of the extrusion tube 123 can extrude the inclined surface of the clamping block 124. The slider fixedly connected to the inclined surface of the clamping block 124 is placed in the groove opened on the inclined surface of the extrusion tube 123. Therefore, when the second tension spring 121 extrudes the sliding plate 122, the clamping mechanism is effectively implemented. The holding block 124 drives the protrusion 126 to press and clamp the hose sleeved on the outer wall of the sleeve 116, avoiding the problem of the water pipe outside the sleeve 116 loosening and detaching. At the same time, when it is necessary to remove the hose sleeved on the outer wall of the sleeve 116, the sliding plate 122 squeezes the second tension spring 121, which effectively enables the sliding groove opened on the inclined surface of the squeezing tube 123 to pull the slider fixed on the inclined surface of the clamping block 124. Therefore, the clamping block 124 moves away from the outer wall of the sleeve 116, thus effectively preventing the hose sleeved on the outer wall of the sleeve 116 from being clamped, making it easy to remove.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A secondary negative pressure dust suppression device for coal mining machinery with onboard curtain, comprising a base plate (1), characterized in that: A fixing seat (2) is fixedly connected to the outer wall of the base plate (1). The fixing seat (2) has mounting holes (3) on its surface. A first support plate (4) is fixedly connected to one side of the upper surface of the base plate (1). A support rod (5) is rotatably connected to the side of the first support plate (4) near the inside of the base plate (1). A spray pipe (6) is fixedly connected to the end of the support rod (5) away from the first support plate (4). A nozzle (7) is fixedly sleeved on the top of the spray pipe (6). The upper surface of the base plate (1) away from the first support plate (4) is fixedly connected to... There is a second support plate (8), and an inlet pipe (9) is rotatably connected inside the second support plate (8). The end of the inlet pipe (9) near the spray pipe (6) is fixedly sleeved with the side of the spray pipe (6) away from the support rod (5). An adjustment mechanism (10) is provided between the spray pipe (6) and the side of the first support plate (4) that are close to each other. A filter mechanism (11) is provided on the side of the second support plate (8) away from the spray pipe (6). A clamping mechanism (12) is provided on the side of the filter mechanism (11) away from the second support plate (8). The adjustment mechanism (10) includes a limiting cylinder (101) and a gear disc (106). The bottom of the limiting cylinder (101) is fixedly connected to the upper surface of the base plate (1). A sliding rod (102) is slidably connected to the inner wall of the limiting cylinder (101). A gear block (104) is fixedly connected to one end of the sliding rod (102) away from the limiting cylinder (101). A first tension spring (103) is sleeved on the outer wall of the limiting cylinder (101). One end of the first tension spring (103) is connected to the gear block (104). A fixing rod (105) is fixedly connected to the front of the gear block (104). The outer wall of the gear disc (106) is fixedly sleeved with the outer wall of the support rod (5). The outer wall of the gear disc (106) meshes with the top of the gear block (104). The filtration mechanism (11) includes a fixed frame (111). The side of the fixed frame (111) near the second support plate (8) is fixedly connected to the outer wall of the side of the second support plate (8) away from the spray pipe (6). The end of the water inlet pipe (9) away from the spray pipe (6) is connected to the interior of the fixed frame (111). The outer wall of the water inlet pipe (9) is sealed and rotatably connected to the side of the fixed frame (111) near the second support plate (8). A limit frame (112) is fixedly connected to the inner wall of the fixed frame (111) near the second support plate (8). The inner wall of the fixed frame (111) slides. A filter frame (113) is connected, and a sponge (114) is placed inside the filter frame (113). A frame cover (117) is threadedly connected to the inner wall of the fixed frame (111) away from the second support plate (8). A rubber ring (115) is fixedly connected to the side of the frame cover (117) close to the second support plate (8). The rubber ring (115) is located between the side of the frame cover (117) and the filter frame (113) that are close to each other. A sleeve (116) is fixedly sleeved inside the frame cover (117). The two ends of the sleeve (116) are connected to the outside of the two sides of the frame cover (117). The clamping mechanism (12) includes a sliding plate (122) and a fixed sleeve (125). The inner wall of the sliding plate (122) is slidably connected to the outer wall of the sleeve (116). A second tension spring (121) is fixedly connected to the side of the sliding plate (122) near the frame cover (117). The second tension spring (121) is sleeved on the outer wall of the sleeve (116). A compression tube (123) is fixedly connected to the side of the sliding plate (122) away from the frame cover (117). The fixing sleeve (125) is fixedly sleeved on the outer wall of the sleeve (116), and the outer wall of the fixing sleeve (125) is slidably connected to the inner wall of the extrusion tube (123). A clamping block (124) is slidably connected inside the fixing sleeve (125). The side of the clamping block (124) near the inner wall of the extrusion tube (123) is slidably connected to the inner wall of the extrusion tube (123). A protrusion (126) is fixedly connected inside the fixing sleeve (125). The clamping block (124) is inclined near the inner wall of the extrusion tube (123), and the extrusion tube (123) is inclined near the inner wall of the clamping block (124), with the two inclined surfaces being the same. A slider is fixedly connected to the clamping block (124) near the inner wall of the extrusion tube (123). A groove is opened on the inclined surface of the extrusion tube (123), and the slider fixedly connected to the clamping block (124) is placed in the groove opened on the inclined surface of the extrusion tube (123).

2. The secondary negative pressure dust suppression device for coal mining machinery onboard curtain as described in claim 1, characterized in that: The fixed base (2) and mounting holes (3) are four in total, and are located on the four sides of the outer wall of the base plate (1).

3. The secondary negative pressure dust suppression device for coal mining machinery onboard curtain as described in claim 2, characterized in that: The nozzles (7) are multiple and arranged in an equidistant array.

4. The secondary negative pressure dust suppression device for coal mining machinery onboard curtain as described in claim 1, characterized in that: The outer wall of the frame cover (117) is provided with threads, and the inner wall of the fixed frame (111) away from the second support plate (8) is provided with threads. The threads provided on the outer wall of the frame cover (117) match the threads provided on the inner wall of the fixed frame (111). The vertical cross section of the frame cover (117) is convex.

5. The secondary negative pressure dust suppression device for coal mining machinery onboard curtain as described in claim 1, characterized in that: There are multiple protrusions (126) arranged in a rectangular equidistant array, and there are multiple clamping blocks (124) arranged in a circular equidistant array at the center points of the fixing sleeve (125).

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