Coal mine goaf and working face stopping agent spraying fire preventing and extinguishing device

Abstract

The utility model relates to a coal mine goaf and working face stopping agent spraying fire preventing and extinguishing device, which belongs to the technical field of coal mine fire prevention and comprises a movable vehicle body, a mixing barrel used for mixing to form stopping agent solution is arranged in the middle of the movable vehicle body, and a stirring component is arranged in the mixing barrel. The mixing barrel is connected with a first spraying assembly arranged along the height through a pipeline, and the first spraying assembly comprises a spray head capable of swinging up and down; the mixing barrel is connected with a second spraying assembly arranged close to the ground through a pipeline, and the first spraying assembly comprises a sprayer capable of rotating. According to the device, the electric spray head and the sprayer can rotate to spray a stopping agent solution in a large area, the spraying range is widened, meanwhile, the device is convenient to move to spray, and the spraying efficiency and the use flexibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to coal mine fire prevention technical field especially relates to a coal mine goaf and working face blocking agent spraying fire prevention and extinguishing device. BACKGROUND

[0002] The blocking agent, also known as fire retardant, flame retardant or fire retardant, is a kind of chemical substance or material for inhibiting combustion or delaying flame spread, and the blocking agent spraying of coal mine goaf and working face is an important fire prevention measure, which is used to prevent and control the occurrence of underground mine fire, and by spraying the blocking agent, the possibility of coal spontaneous combustion can be effectively inhibited, the coal mine accident can be reduced, and the mine safety can be ensured.

[0003] The existing coal mine goaf and working face blocking agent spraying is usually mixed by adding the blocking agent and water into the spraying vehicle and then sprayed out, and the spraying vehicle is manually assisted to move for spraying, the current spraying vehicle has limited spraying range, cannot rotate the electric spray head and the sprayer for large-area spraying, and is prone to low spraying efficiency and poor flexibility, so that the use is inconvenient. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model provides a coal mine goaf and working face blocking agent spraying fire prevention and extinguishing device, which can spray the blocking agent solution in a large area by rotating the electric spray head and the sprayer, improve the spraying range, facilitate the movement for spraying, improve the spraying efficiency and the use flexibility.

[0005] A coal mine goaf and working face blocking agent spraying fire prevention and extinguishing device, comprising a movable vehicle body, a mixing barrel for mixing to form a blocking agent solution is arranged in the middle of the movable vehicle body, and a stirring assembly is arranged in the mixing barrel;The mixing barrel is connected with a first spraying assembly arranged along the height through a pipeline, the first spraying assembly comprises a spray head capable of swinging up and down;The mixing barrel is connected with a second spraying assembly arranged close to the ground through a pipeline, and the first spraying assembly comprises a sprayer capable of rotating.

[0006] The top of the mixing barrel is semi-open, a shielding plate is rotationally connected to the top of the mixing barrel, and the shielding plate is used to rotate the unsealed part of the mixing barrel.

[0007] A plurality of first conveying pipes are connected to the side of the mixing barrel, the distal end of each first conveying pipe is connected with a plurality of connecting hoses in branches, the distal end of each connecting hose is connected with the spray head, a plurality of spray heads are rotationally connected with the support frame on the same side, and the support frame is arranged on the side of the movable vehicle body along the height direction.

[0008] The spray head is an electric spray head.

[0009] The gear is installed on the spray head, a second motor is installed on the movable trolley, an eccentric wheel is connected to the output shaft of the second motor, a connecting rod is rotatably connected to the eccentric wheel, and the end of the connecting rod connected to the eccentric wheel does not coincide with the rotation center of the eccentric wheel; the other end of the connecting rod is rotatably connected to the rack, the rack is slidably connected to the support frame along the height direction of the support frame, and the rack is engaged with the gear, so that the spray head is swung up or down by the second motor.

[0010] The second conveying pipe is connected to the mixing barrel, the end of the second conveying pipe penetrates through the movable trolley and is connected to the sprayer, and the sprayer is rotatably connected to the movable trolley; the movable trolley and the sprayer are connected through the gear transmission mechanism.

[0011] The gear transmission mechanism comprises a third motor arranged on the movable trolley, a gear set is arranged between the output end of the third motor and the sprayer, and the gear set comprises a large gear and a small gear; the large gear is connected to the output end of the third motor, and the small gear is fixed to the rotating shaft of the sprayer and engaged with the large gear.

[0012] The number of the sprayers is one.

[0013] The number of the support frames is two, and the support frames are distributed on the two sides of the movable trolley.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. The movable fire extinguishing device can realize large-area spraying of the retardant solution, improve the spraying range, and can move for spraying, improve the spraying efficiency, and improve the flexibility of use.

[0016] 2. The retardant and water are poured into the mixing barrel, then the first motor drives the stirring frame to rotate to stir the retardant and water, forms the retardant solution, and then the electric spray head and the sprayer are rotated to spray the retardant solution, so that the retardant solution can be stirred and sprayed after being formed, realizes the integration of stirring and spraying, reduces the use cost, and improves the use convenience. DRAWINGS

[0017] Figure 1 It is a structural schematic view of the coal mine goaf and working face retardant spraying fire extinguishing device.

[0018] Figure 2 It is an internal structure schematic view of the mixing barrel in the present utility model.

[0019] Figure 3 It is a schematic view of the spray head part in the present utility model.

[0020] Figure 4 It is the schematic view of the support frame in the utility model;

[0021] Figure 5 It is the schematic view of the sprayer part in the utility model;

[0022] Among them:

[0023] 1, the movable vehicle body, 2, push handle, 3, mixing bucket, 4, baffle, 5, first motor, 6, stirring frame, 7, first conveying pipe, 8, support frame, 9, connecting hose, 10, electric spray head, 11, gear, 12, second motor, 13, eccentric wheel, 14, connecting rod, 15, rack, 16, second conveying pipe, 17, sprayer, 18, third motor, 19, gear set. DETAILED DESCRIPTION

[0024] In order to better explain the utility model, so as to facilitate understanding, the following will be combined with the specific embodiments, the technical scheme and effect of the utility model are described in detail.

[0025] As Figures 1-5 The utility model discloses a coal mine goaf and working face blocking agent spraying fire prevention and extinguishing device, including movable vehicle body 1, be used to play the support and the movement of the whole device, movable vehicle body 1 bottom is equipped with walking wheel, and the movement of the whole device is convenient, and movable vehicle body 1 is provided with push handle, and it is convenient to hold, and the whole device is pushed by auxiliary user.

[0026] Movable vehicle body 1 middle part is provided with mixing bucket 3, and the top of mixing bucket 3 is half open type, and the top of mixing bucket 3 is rotatably connected with baffle 4, which is used to rotate the unsealed part of mixing bucket 3. The middle part of the mixing bucket 3 is provided with a stirring frame 6, and the central shaft of the stirring frame 6 is connected to the output end of the first motor 5. The first motor 5 is fixed to the mixing bucket 3 through the motor fixing frame. The first motor 5 is started, which drives the stirring frame 6 to rotate in the mixing bucket 3, so as to stir the blocking agent and water to fully mix to form a blocking agent solution.

[0027] The side of the mixing bucket 3 is connected with a plurality of first conveying pipes 7, the distal end of the first conveying pipe 7 is connected with seven connecting hoses 9 through a branch, the distal end of the connecting hose 9 is connected with an electric spray head 10, a plurality of electric spray heads 10 are rotatably connected with the same side support frame 8, and the support frame 8 is arranged on the side of the movable vehicle body 1 along the height direction.

[0028] A gear 11 is mounted on the electric nozzle 10. Second motors 12 are mounted on both sides of the movable vehicle body 1. An eccentric wheel 13 is connected to the output shaft of the second motor 12. A connecting rod 14 is rotatably connected to the eccentric wheel 13. One end of the connecting rod 14 connected to the eccentric wheel 13 does not coincide with the rotation center of the eccentric wheel 13. The other end of the connecting rod 14 is rotatably connected to a rack 15. The rack 15 slides along the height direction of the support frame 8 and meshes with the gear 11. When the second motor 12 starts, it drives the rack 15 to move up and down through the eccentric wheel 13 and the connecting rod 14. Simultaneously, through the meshing of the rack 15 and the gear 11, it drives the gear 11 to rotate, thereby causing the electric nozzle 10 to swing up or down, adjusting the pitch angle and changing the spray direction.

[0029] A second conveying pipe 16 is connected to the left side of the mixing tank 3. The end of the second conveying pipe 16 passes through the movable vehicle body 1 and is connected to the sprayer 17. The sprayer 17 is set close to the ground. In this embodiment, the sprayer 17 is a commercially available fan-shaped sprayer with an opening range of 0°-150°. There are two sprayers 17, which are rotatably connected to the movable vehicle body 1. A third motor 18 is installed on the movable vehicle body 1. A gear set 19 is provided between the output end of the third motor 18 and the sprayer 17. The gear set 19 includes a large gear and a small gear. The large gear is connected to the output end of the third motor 18, and the small gear is fixed on the rotating shaft of the sprayer 17 and meshes with the large gear. The rotation of the third motor 18 drives the rotation of the sprayer 17 to achieve a large-area spraying.

[0030] When fire inhibitors need to be sprayed in the goaf and working face of a coal mine for fire prevention and extinguishing, this device can be used. The mobile vehicle 1 is moved to the location requiring fire inhibitor spraying by pushing handle 2, which in turn moves the device. After moving to the designated position, the shield 4 is manually rotated to open it, and the fire inhibitor and water are poured into the mixing tank 3. Then, the shield 4 is manually rotated in the opposite direction to close it. Next, the first motor 5 is started, which drives the stirring frame 6 to rotate and stir the fire inhibitor and water to form a fire inhibitor solution. After stirring is complete, the first motor 5 is turned off, and the second motor 12 is started. The second motor 12 drives the eccentric wheel 13 to rotate, causing the connecting rod 14 to rotate, which in turn drives the rack 15 to move along the support frame 8. The rack 15 and the gear 1... The intermeshing motion causes the electric nozzle 10 to swing up and down. Then, the electric nozzle 10 is activated, and the inhibitor solution is introduced into the first delivery pipe 7 through the electric nozzle 10, then flows into the connecting hose 9, and then sprays out from the electric nozzle 10. This allows for the mixing and spraying of the inhibitor solution, achieving integrated mixing and spraying, reducing usage costs and improving ease of use. At the same time, the third motor 18 is activated, which drives the large gear to rotate. The large gear and the small gear mesh with each other, causing the sprayer 17 to rotate. Simultaneously, the sprayer 17 is activated, and the inhibitor solution is introduced into the second delivery pipe 16 through the sprayer 17. The inhibitor solution flows into the sprayer 17 through the second delivery pipe 16 and is then sprayed out. Then continue to move the device to spray the inhibitor solution to achieve fire prevention. This allows the electric nozzle 10 and sprayer 17 to rotate and spray the inhibitor solution over a large area, increasing the spray range, facilitating movement for spraying, improving spraying efficiency, and enhancing the flexibility of use. After spraying is completed, turn off the second motor 12, electric nozzle 10, third motor 18, and sprayer 17, and then push the device away using the push handle 2.

Claims

1. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face, characterized in that: The device includes a movable vehicle body (1), a mixing tank (3) for mixing to form an inhibitor solution is provided in the middle of the movable vehicle body (1), and a stirring assembly is provided inside the mixing tank (3); the mixing tank (3) is connected to a first spraying assembly arranged along the height through a pipeline, the first spraying assembly including a nozzle that can swing up and down; the mixing tank (3) is connected to a second spraying assembly arranged near the ground through a pipeline, the first spraying assembly including a sprayer that can rotate.

2. The fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 1, characterized in that: The top of the mixing barrel (3) is semi-open, and a baffle plate (4) is rotatably connected to the top of the mixing barrel (3) to cover the unclosed part of the mixing barrel (3).

3. The fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 1, characterized in that: The mixing tank (3) has multiple first conveying pipes (7) connected to its side. Each first conveying pipe (7) has multiple connecting hoses (9) connected to its end. Each connecting hose (9) has a nozzle connected to its end. The nozzles are rotatably connected to a support frame (8) on the same side. The support frame (8) is arranged along the height direction on the side of the movable vehicle body (1).

4. The fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 3, characterized in that: The nozzle is an electric nozzle.

5. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 1, characterized in that: A gear (11) is installed on the nozzle, and a second motor (12) is installed on the movable vehicle body (1). An eccentric wheel (13) is connected to the output shaft of the second motor (12). A connecting rod (14) is rotatably connected to the eccentric wheel (13). One end of the connecting rod (14) connected to the eccentric wheel (13) does not coincide with the rotation center of the eccentric wheel (13). The other end of the connecting rod (14) is rotatably connected to a rack (15). The rack (15) is slidably connected to the support frame (8) along the height direction of the support frame (8) and meshes with the gear (11). The second motor (12) drives the nozzle to swing up or down.

6. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 1, characterized in that: The mixing tank (3) is connected to a second conveying pipe (16), the end of which passes through the movable vehicle body (1) and is connected to the sprayer (17). The sprayer (17) is rotatably connected to the movable vehicle body (1). The movable vehicle body (1) and the sprayer (17) are connected by a gear transmission mechanism.

7. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 6, characterized in that: The gear transmission mechanism includes a third motor (18) mounted on a movable vehicle body (1). A gear set (19) is provided between the output end of the third motor (18) and the sprayer (17). The gear set (19) includes a large gear and a small gear. The large gear is connected to the output end of the third motor (18), and the small gear is fixed on the rotating shaft of the sprayer (17) and meshes with the large gear.

8. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 6, characterized in that: The number of sprayers (17) is 2.

9. A fire prevention and extinguishing device for spraying inhibitors in coal mine goaf and working face according to claim 3, characterized in that: There are two support frames (8), which are distributed on both sides of the movable vehicle body (1).

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