CN118815537A - A control-type coal mining face sensing dust reduction device - Google Patents

Abstract

The invention relates to the technical field of coal face dust fall, in particular to a regulation and control type coal face sensing dust fall device. The invention provides a regulation type coal face sensing dust fall device which can shield wind when the wind speed is high and avoid influencing the dust fall effect of a coal face. The utility model provides a regulation and control formula coal face perception dust device, is including mounting bracket, mounting and link etc. both sides and both sides all are connected with the mounting bracket around the mounting bracket left portion and right part, and both sides all are connected with the link about the mounting bracket. According to the invention, when the wind speed of the coal face is high, the wind speed detector controls the air cylinder to start, so that the telescopic end of the air cylinder stretches out, the connecting piece is pushed to move downwards, and the baffle is rotated to be horizontal with the folded plate, so that when the wind speed is high, wind can be shielded, and the dust settling effect of the coal face is prevented from being influenced.

Description

A control-type coal mining face sensing dust reduction device

Technical Field

The present invention relates to the technical field of dust reduction on coal mining working faces, and in particular to a control-type coal mining working face sensing dust reduction device.

Background Art

Coal mining is the process of separating valuable coal from underground or on the surface and transporting it away from the site. The coal mining face is the first production site of coal. A large amount of coal dust will be generated in the production process of the coal mining face. This coal dust not only affects the visibility at the coal mine face, but also endangers the health of the workers. At present, the coal dust is usually collected and reduced by spraying water mist. However, since the underground comprehensive mining face is equipped with an air intake lane and a return air lane to form a ventilation system, the wind speed of the working face is relatively high. When the spray volume is small, the dust is sucked away before it has time to agglomerate with the water droplets, affecting the dust reduction effect on the coal mining face.

Therefore, a controllable coal mining face sensing dust reduction device has been developed which can block the wind when the wind speed is high to avoid affecting the dust reduction effect on the coal mining face.

Summary of the invention

In order to overcome the disadvantage that the underground comprehensive mining working face is provided with an air inlet lane and a return air lane to form a ventilation system, which leads to a relatively high wind speed on the working face, when the spray volume is small, the dust is sucked away before it has time to agglomerate with water droplets, thus affecting the dust reduction effect on the coal mining working face, the present invention provides a regulated coal mining working face sensing dust reduction device which can block the wind when the wind speed is high to avoid affecting the dust reduction effect on the coal mining working face.

The technical solution of the present invention is: a control-type coal mining face sensing dust reduction device, including a mounting frame, a fixing part, a connecting frame, a dust reduction mechanism and a wind shielding mechanism, the front and rear sides of the left part and the front and rear sides of the right part of the mounting frame are connected with fixing parts, the lower sides of the left and right parts of the mounting frame are connected with connecting frames, a dust reduction mechanism capable of reducing dust on the coal mining face is provided between the connecting frames, and a wind shielding mechanism capable of blocking wind is provided on the mounting frame.

Furthermore, the fixing parts are all provided with mounting holes.

Furthermore, the dust reduction mechanism includes a dust concentration sensor, a connecting pipe, a flow regulating valve and a dust reduction nozzle. The dust concentration sensor is connected to the front middle side of the mounting frame, a connecting pipe is connected between the connecting frames, flow regulating valves are connected to the left and right sides of the connecting pipe, the flow regulating valves are electrically connected to the dust concentration sensor, and a plurality of dust reduction nozzles are connected to the lower side of the connecting pipe. The dust concentration sensor detects the coal dust concentration generated during coal mining. When the dust concentration sensor detects that the coal dust concentration is low, the flow regulating valve adjusts the amount of water in the connecting pipe accordingly.

Furthermore, a warning light is provided on the upper side of the dust concentration sensor.

Furthermore, the lower sides of the dust suppression nozzles are all conical.

Furthermore, the wind shielding mechanism includes a support plate, a rotating plate, a first motor, a missing gear, a spur gear, a torsion spring, a folding plate, a baffle, a connecting piece, a cylinder and a wind speed detector. The left and right sides of the rear of the mounting frame are connected to support plates, the rotating plates are rotatably connected between the support plates, the lower parts of the support plates are connected to the first motor, the output shafts of the first motor are connected to missing gears, the left and right parts of the rotating plates are connected to spur gears, the missing gears are meshed with adjacent spur gears, the support plates are connected to torsion springs between the rotating plates, and the left and right sides of the mounting frame are connected to folding plates. The connecting pipe passes through the folding plate, the lower side of the folding plate is rotatably connected with a baffle, the upper part of the baffle is connected with a connecting piece, the folding plates are connected with a cylinder on the side away from each other, the telescopic ends of the cylinders are movably connected with the adjacent connecting pieces, the rear side of the folding plate on the right is connected with a wind speed detector, the cylinders are connected to the wind speed detector through electric wires, the wind speed detector detects the wind speed at the coal mining working face, when the wind speed at the coal mining working face is large, the wind speed detector controls the cylinder to start, so that the telescopic end of the cylinder extends out, pushes the connecting piece to move downward, and rotates the baffle to be level with the folding plate.

Furthermore, it also includes a closing mechanism, which includes a fixed plate, a rotating shaft, a rotating frame, a belt, a fixed frame, a telescopic component and a lifting block. The front side of the lower part of the support plate is connected to the fixed plate, the rotating shaft is rotatably connected between the fixed plates, and multiple groups of rotating frames are connected to the rotating shaft, and each group is composed of two rotating frames. The output shaft of the first motor is connected to the rotating shaft through a transmission wheel with a belt, the front side of the dust reduction nozzle is connected to the fixed frame, the lower part of the fixed frame is connected to the telescopic component, the upper side of the telescopic component is connected to the lifting block, the lifting block is in contact with the adjacent dust reduction nozzle, and the rotating frame is connected to The adjacent lifting blocks are squeezed together, and the first motor is started at the same time, which drives the belt to rotate, causing the rotating shaft to rotate, and then drives the rotating frame to rotate, so that the rotating frame squeezes the lifting block to move downward, and the telescopic assembly contracts, so that the lifting block is separated from the dust reduction nozzle, so that the dust reduction nozzle can spray water mist, and the lifting block can guide the sprayed water to expand the range of water mist spraying. When the coal mining machine stops mining, the first motor is turned off to stop the rotating shaft and the rotating frame from rotating. Then the telescopic rod and the telescopic spring in the telescopic assembly rebound, so that the lifting block moves upward to block the dust reduction nozzle, and then the water flow to the connecting pipe is stopped.

Furthermore, the telescopic components are composed of a telescopic rod and a telescopic spring.

Furthermore, the lifting blocks are all trapezoidal.

Furthermore, it also includes a reinforcing mechanism, which includes a support, a fan and a second motor. A plurality of support members are connected to the lower side of the mounting frame, the lower parts of the support members are connected to the second motor, and the output shafts of the second motors are connected to the fans. The second motors on the support members are started to drive the fan to rotate, so that the fan blows away the water mist.

The beneficial effects are: 1. When the wind speed at the coal mining face is high, the wind speed detector controls the cylinder to start, so that the telescopic end of the cylinder extends, pushes the connecting piece to move downward, and rotates the baffle to be level with the folding plate, so that when the wind speed is high, the wind can be blocked to avoid affecting the dust reduction effect on the coal mining face.

2. The present invention detects the coal dust concentration generated during coal mining through a dust concentration sensor. When the dust concentration sensor detects that the coal dust concentration is low, the flow regulating valve adjusts the amount of water in the connecting pipe accordingly, thereby achieving the effect of being able to timely adjust the dust reduction water supply according to different concentrations and reducing the dust reduction cost of the mine.

3. The present invention starts the first motor to drive the missing gear to rotate. When the missing gear meshes with the spur gear, it drives the rotating plate to rotate, and the torsion spring is deformed. When the missing gear is separated from the spur gear, the torsion spring recovers to reset the rotating plate, causing the rotating plate to swing back and forth, thereby expanding the dust reduction area of the water mist and improving the dust reduction effect.

4. The present invention turns off the first motor when the coal mining machine stops mining, so that the rotating shaft and the rotating frame stop rotating. Then the telescopic rod and the telescopic spring in the telescopic assembly rebound, so that the lifting block moves upward to block the dust suppression nozzle, and then stops the water flow to the connecting pipe, thereby achieving the effect of being able to turn off the dust suppression nozzle when the coal mining machine stops, thereby avoiding the waste of water resources.

5. The present invention starts the second motor on the support member to drive the fan to rotate, so that the fan blows away the water mist, thereby achieving the effect of expanding the spraying range of the water mist and improving the dust reduction efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a partial three-dimensional structural schematic diagram of the present invention.

FIG. 3 is a schematic diagram of a partial three-dimensional structure of the dust reduction mechanism of the present invention.

FIG. 4 is a schematic diagram of the three-dimensional structure of the first part of the wind shielding mechanism of the present invention.

FIG. 5 is an enlarged view of point A of the wind shielding mechanism of the present invention.

FIG. 6 is a schematic diagram of the three-dimensional structure of the second part of the wind shielding mechanism of the present invention.

FIG. 7 is a schematic diagram of the three-dimensional structure of the first part of the closing mechanism of the present invention.

FIG. 8 is a schematic diagram of the three-dimensional structure of the second part of the closing mechanism of the present invention.

FIG. 9 is a schematic diagram of a three-dimensional structure of a reinforcement mechanism of the present invention.

In the accompanying drawings: 1-mounting frame, 2-fixing part, 3-connecting frame, 4-dust reduction mechanism, 41-dust concentration sensor, 42-connecting pipe, 43-flow regulating valve, 44-dust reduction nozzle, 5-wind shielding mechanism, 51-support plate, 52-rotating plate, 53-first motor, 54-missing gear, 55-spur gear, 56-torsion spring, 57-folding plate, 58-baffle, 59-connecting part, 510-cylinder, 511-wind speed detector, 6-closing mechanism, 61-fixing plate, 62-rotating shaft, 63-rotating frame, 64-belt, 65-fixed frame, 66-telescopic assembly, 67-lifting block, 7-reinforcement mechanism, 71-support member, 72-fan, 73-second motor.

DETAILED DESCRIPTION

Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

A control-type coal mining working face sensing dust reduction device, as shown in Figures 1 and 2, includes a mounting frame 1, a fixing part 2, a connecting frame 3, a dust reduction mechanism 4 and a wind shield mechanism 5. The mounting frame 1 is connected to the front and rear sides of the left part and the front and rear sides of the right part with fixing parts 2. The fixing parts 2 are provided with mounting holes for easy installation and fixation. The lower sides of the left and right parts of the mounting frame 1 are connected to the connecting frames 3. A dust reduction mechanism 4 is provided between the connecting frames 3, and a wind shield mechanism 5 is also provided on the mounting frame 1.

As shown in Figures 1 and 3, the dust reduction mechanism 4 includes a dust concentration sensor 41, a connecting pipe 42, a flow regulating valve 43 and a dust reduction nozzle 44. The dust concentration sensor 41 is connected to the front side of the middle part of the mounting frame 1. A prompt light is provided on the upper side of the dust concentration sensor 41 to indicate the working status. A connecting pipe 42 is connected between the connecting frames 3. Flow regulating valves 43 are connected to the left and right sides of the connecting pipe 42. The flow regulating valves 43 are electrically connected to the dust concentration sensor 41. Six dust reduction nozzles 44 are connected to the lower side of the connecting pipe 42. The lower sides of the dust reduction nozzles 44 are all conical to facilitate the spraying of water mist.

As shown in Figures 1, 4, 5 and 6, the wind shielding mechanism 5 includes a support plate 51, a rotating plate 52, a first motor 53, a missing gear 54, a spur gear 55, a torsion spring 56, a folding plate 57, a baffle 58, a connecting piece 59, a cylinder 510 and a wind speed detector 511. The left and right sides of the rear of the mounting frame 1 are connected to the support plates 51, the rotating plates 52 are rotatably connected between the support plates 51, the lower part of the support plates 51 is connected to the first motor 53, the output shaft of the first motor 53 is connected to the missing gear 54, the left and right sides of the rotating plate 52 are connected to the spur gear 55, and the missing gear 54 are all meshed with adjacent spur gears 55, torsion springs 56 are connected between the support plates 51 and the rotating plates 52, folding plates 57 are connected to the left and right sides of the mounting frame 1, the connecting pipe 42 passes through the folding plates 57, baffles 58 are rotatably connected to the lower sides of the folding plates 57, and connecting pieces 59 are connected to the upper parts of the baffles 58. Cylinders 510 are connected to the sides of the folding plates 57 that are away from each other, and the telescopic ends of the cylinders 510 are movably connected to the adjacent connecting pieces 59. A wind speed detector 511 is connected to the rear side of the folding plate 57 on the right side, and the cylinders 510 are connected to the wind speed detector 511 through electric wires.

When using the present invention, firstly, the fixing part 2 is installed on the coal mining arm of the coal mining machine by means of bolts, and then the mounting frame 1 is installed on the coal mining arm of the coal mining machine. When the coal mining machine is mining, water is passed into the connecting pipe 42, so that the dust reduction nozzle 44 sprays water mist to reduce dust on the coal mining working face. The dust concentration sensor 41 detects the coal dust concentration generated during coal mining. When the dust concentration sensor 41 detects that the coal dust concentration is low, the flow regulating valve 43 adjusts the water amount in the connecting pipe 42 accordingly, thereby playing the role of timely adjusting the dust reduction water supply according to the different concentrations and reducing the dust reduction cost of the mine.

By using the wind shield mechanism 5 of the device, the spraying range of the dust suppression nozzle 44 can be adjusted. When the coal mining machine is mining, the first motor 53 is started to drive the missing gear 54 to rotate. When the missing gear 54 is meshed with the spur gear 55, the rotating plate 52 is driven to rotate, and the torsion spring 56 is deformed. When the missing gear 54 is separated from the spur gear 55, the torsion spring 56 is restored to reset the rotating plate 52, so that the rotating plate 52 swings back and forth, thereby expanding the dust suppression area of the water mist and improving the dust suppression effect. The wind speed detector 51 1 The wind speed at the coal mining face is detected. When the wind speed at the coal mining face is high, the wind speed detector 511 controls the cylinder 510 to start, so that the telescopic end of the cylinder 510 extends, pushes the connecting piece 59 to move downward, and rotates the baffle 58 to be level with the folding plate 57, thereby playing a role in blocking the wind when the wind speed is high and avoiding affecting the dust reduction effect on the coal mining face. When the wind speed is low, the telescopic end of the cylinder 510 is retracted, pulling the connecting piece 59 to move upward, so that the baffle 58 rotates to be vertical to the folding plate 57.

As shown in Figures 1, 7 and 8, a closing mechanism 6 is also included, which includes a fixed plate 61, a rotating shaft 62, a rotating frame 63, a belt 64, a fixed frame 65, a telescopic component 66 and a lifting block 67. The front side of the lower part of the support plate 51 is connected to the fixed plate 61, and the rotating shaft 62 is rotatably connected between the fixed plates 61. Six groups of rotating frames 63 are connected to the rotating shaft 62, and each group is composed of two rotating frames 63. The output shaft of the first motor 53 is connected to the rotating shaft 62 through a transmission wheel with a belt 64. The front side of the dust reduction nozzle 44 is connected to the fixed frame 65, and the lower part of the fixed frame 65 is connected to the telescopic component 66. The telescopic component 66 is composed of a telescopic rod and a telescopic spring. The upper side of the telescopic component 66 is connected to the lifting block 67. The lifting blocks 67 are all trapezoidal, which is convenient for diffusing water mist. The lifting blocks 67 are in contact with and cooperate with adjacent dust reduction nozzles 44, and the rotating frames 63 are squeezed and cooperated with adjacent lifting blocks 67.

By using the closing mechanism 6 of the present device, the dust suppression nozzle 44 can be closed. When the first motor 53 is started, the belt 64 is driven to rotate, so that the rotating shaft 62 rotates, and then the rotating frame 63 is driven to rotate, so that the rotating frame 63 squeezes the lifting block 67 to move downward, and the telescopic rod and the telescopic spring in the telescopic assembly 66 contract, and the lifting block 67 is separated from the dust suppression nozzle 44, so that the dust suppression nozzle 44 can spray water mist. The lifting block 67 can guide the sprayed water to expand the spraying range of the water mist. When the coal mining machine stops mining, the first motor 53 is turned off, so that the rotating shaft 62 and the rotating frame 63 stop rotating, and then the telescopic rod and the telescopic spring in the telescopic assembly 66 rebound, so that the lifting block 67 moves upward to block the dust suppression nozzle 44, and then stops the water flow to the connecting pipe 42, thereby achieving the effect of closing the dust suppression nozzle 44 when the coal mining machine stops, thereby avoiding waste of water resources.

As shown in FIG. 1 and FIG. 9 , a reinforcing mechanism 7 is also included. The reinforcing mechanism 7 includes a support member 71, a fan 72 and a second motor 73. Five support members 71 are connected to the lower side of the mounting frame 1. The lower part of the support members 71 is connected to the second motor 73. The output shaft of the second motor 73 is connected to the fan 72.

The reinforcing mechanism 7 of the device can be used to enhance the dust reduction effect. The second motor 73 on the support 71 is started to drive the fan 72 to rotate, so that the fan 72 blows away the water mist, thereby expanding the water mist spraying range and improving the dust reduction efficiency.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A control-type coal mining face sensing dust reduction device, characterized in that it comprises a mounting frame (1), a fixing member (2), a connecting frame (3), a dust reduction mechanism (4) and a wind shield mechanism (5), the mounting frame (1) is connected to the front and rear sides of the left part and the front and rear sides of the right part with the fixing member (2), the lower sides of the left and right parts of the mounting frame (1) are connected to the connecting frame (3), a dust reduction mechanism (4) capable of reducing dust on the coal mining face is arranged between the connecting frames (3), and the mounting frame (1) is provided with a wind shield mechanism (5) capable of blocking wind. 2. A controllable coal mining face sensing dust reduction device as described in claim 1, characterized in that: mounting holes are provided on the fixing parts (2). 3. A controllable coal mining face sensing dust reduction device as described in claim 1, characterized in that: the dust reduction mechanism (4) includes a dust concentration sensor (41), a connecting pipe (42), a flow regulating valve (43) and a dust reduction nozzle (44); the dust concentration sensor (41) is connected to the front side of the middle part of the mounting frame (1); a connecting pipe (42) is connected between the connecting frames (3); flow regulating valves (43) are connected to the left and right sides of the connecting pipe (42); the flow regulating valves (43) are electrically connected to the dust concentration sensor (41); a plurality of dust reduction nozzles (44) are connected to the lower side of the connecting pipe (42); the dust concentration sensor (41) detects the coal dust concentration generated during coal mining; when the dust concentration sensor (41) detects that the coal dust concentration is low, the flow regulating valve (43) adjusts the amount of water in the connecting pipe (42) accordingly. 4. A control-type coal mining face sensing dust reduction device as described in claim 3, characterized in that a warning light is provided on the upper side of the dust concentration sensor (41). 5. A control-type coal mining face sensing dust suppression device as described in claim 3, characterized in that the lower side of the dust suppression nozzle (44) is conical. 6. A controllable coal mining face sensing dust reduction device as described in claim 3, characterized in that: the wind shielding mechanism (5) includes a support plate (51), a rotating plate (52), a first motor (53), a missing gear (54), a spur gear (55), a torsion spring (56), a folding plate (57), a baffle (58), a connecting piece (59), a cylinder (510) and a wind speed detector (511), the left and right sides of the rear of the mounting frame (1) are connected to the support plates (51), the rotating plates (52) are rotatably connected between the support plates (51), the lower part of the support plates (51) is connected to the first motor (53), the output shaft of the first motor (53) is connected to the missing gear (54), the left and right parts of the rotating plate (52) are connected to the spur gear (55), the missing gear (54) is meshed with the adjacent spur gear (55), the support plates (51) and the rotating plates (52) are connected with a torsion spring. The spring (56) is provided, and the left and right sides of the mounting frame (1) are connected with folding plates (57), the connecting pipe (42) passes through the folding plates (57), the lower side of the folding plates (57) is rotatably connected with baffles (58), the upper part of the baffles (58) is connected with connecting pieces (59), the folding plates (57) are connected with cylinders (510) on the sides away from each other, and the telescopic ends of the cylinders (510) are movably connected with the adjacent connecting pieces (59), and the folding plates (57) on the right side are connected with the connecting pieces (59) on the left and right sides of the mounting frame (1) are connected with the connecting pieces (59) on the right sides of the mounting frame (1). The rear side is connected with a wind speed detector (511), and the cylinder (510) is connected to the wind speed detector (511) through an electric wire. The wind speed detector (511) detects the wind speed at the coal mining working face. When the wind speed at the coal mining working face is relatively high, the wind speed detector (511) controls the cylinder (510) to start, so that the telescopic end of the cylinder (510) extends, pushes the connecting member (59) to move downward, and rotates the baffle (58) to be level with the folding plate (57). 7. A controllable coal mining working face sensing dust reduction device as described in claim 6, characterized in that it also includes a closing mechanism (6), the closing mechanism (6) includes a fixed plate (61), a rotating shaft (62), a rotating frame (63), a belt (64), a fixed frame (65), a telescopic component (66) and a lifting block (67), the front side of the lower part of the support plate (51) is connected to the fixed plate (61), the fixed plates (61) are rotatably connected with the rotating shaft (62), a plurality of groups of rotating frames (63) are connected to the rotating shaft (62), each group is composed of two rotating frames (63), the output shaft of the first motor (53) is connected to the rotating shaft (62) through a transmission wheel with a belt (64), the front side of the dust reduction nozzle (44) is connected to the fixed frame (65), the lower part of the fixed frame (65) is connected to the telescopic component (66), the upper side of the telescopic component (66) is connected to the lifting block (67), and the lifting The blocks (67) are all in contact with the adjacent dust suppression nozzles (44), and the rotating frames (63) are all squeezed and matched with the adjacent lifting blocks (67). When the first motor (53) is started, it drives the belt (64) to rotate, so that the rotating shaft (62) rotates, and then drives the rotating frame (63) to rotate, so that the rotating frame (63) squeezes the lifting block (67) to move downward, and the telescopic component (66) contracts, so that the lifting block (67) is separated from the dust suppression nozzle (44), so that the dust suppression nozzle (44) can spray water mist, and the lifting block (67) can guide the sprayed water to expand the spraying range of the water mist. When the coal mining machine stops mining, the first motor (53) is turned off, so that the rotating shaft (62) and the rotating frame (63) stop rotating, and then the telescopic rod and the telescopic spring in the telescopic component (66) rebound, so that the lifting block (67) moves upward to block the dust suppression nozzle (44), and then the water flow to the connecting pipe (42) is stopped. 8. A controllable coal mining face sensing dust reduction device as described in claim 7, characterized in that the telescopic components (66) are composed of telescopic rods and telescopic springs. 9. A control-type coal mining face sensing dust reduction device as described in claim 7, characterized in that the lifting blocks (67) are all trapezoidal. 10. A control-type coal mining face sensing dust reduction device as described in claim 7, characterized in that it also includes a reinforcing mechanism (7), the reinforcing mechanism (7) includes a support member (71), a fan (72) and a second motor (73), a plurality of support members (71) are connected to the lower side of the mounting frame (1), the lower part of the support member (71) is connected to the second motor (73), the output shaft of the second motor (73) is connected to the fan (72), the second motor (73) is started, and the fan (72) is driven to rotate, so that the fan (72) blows away the water mist.