Mining dust falling device capable of adjusting adding proportion

Abstract

The invention discloses a mining dust falling device capable of adjusting the adding proportion, which comprises a rack, a first speed reducing motor is fixedly mounted on the right upper side of the rack, a special-shaped bracket is fixedly mounted on the upper side of an output shaft of the first speed reducing motor, and a quantitative conveying device is mounted on the special-shaped bracket; the quantitative conveying device comprises a discharging assembly and a weighing mechanism, the discharging assembly is installed on the upper side of the special-shaped support, the weighing mechanism is installed on the lower side of the special-shaped support, an adjustable spraying device is installed on the left side of the rack, and the discharging assembly comprises a conveying pipeline, a feeding hopper, a spiral blade and a second gear motor. The material conveying pipeline is fixedly installed on the upper side of the special-shaped support through a support, and the feeding hopper is fixedly installed on the upper side of the material conveying pipeline. In this way, a dust falling agent can be quantitatively added according to the dust concentration, a cover can be automatically opened during quantitative discharging, and the spray head can synchronously rotate at multiple angles so that mine holes of different sizes can be covered.

Description

Technical Field

[0001] The invention relates to the technical field of mine dust suppression, in particular to a mine dust suppression device with adjustable addition ratio. Background Art

[0002] A mining dust suppression device is a device used in mining and other working environments to reduce the dust content in the air. Water is delivered to the nozzle under pressure, and the nozzle atomizes the water into tiny droplets. These droplets collide with dust particles in the air, causing the dust particles to be adsorbed by the water droplets, thereby increasing the weight of the dust and causing it to settle under the action of gravity. For example, in the coal mining face underground in a coal mine, a spray dust suppression device will be installed on coal mining machines, scraper conveyors and other equipment. When the coal mining machine is working, the spray device will be turned on synchronously to form a fog curtain near the dust source to effectively capture the flying coal dust. Usually, water mist is not easy to adsorb dust in the mine, and dust suppressants need to be added to make water mist easier to adsorb dust and improve the dust reduction effect.

[0003] Chinese patent CN214533050U proposes an automatic spray dust suppression device for mining, comprising a supporting leg, a supporting cross plate, a water tank, a water supply assembly and an adjusting assembly, wherein the supporting leg is arranged at the lower end of the supporting cross plate, a buffer groove is arranged at the upper end of the supporting cross plate, a buffer plate is arranged in the buffer groove, a buffer spring is arranged between the buffer plate and the inner bottom of the buffer groove, the water tank is arranged at the upper end of the buffer plate, the water supply assembly and the adjusting assembly are respectively arranged at the two ends of the upper part of the water tank; the adjusting assembly comprises a track plate, an electric cylinder, a rack and a rotating assembly, the electric cylinder and the track plate are both arranged at the upper end of the water tank, the rack can be slidably arranged at the upper end of the track plate, the side end of the rack is connected to the transmission end of the electric cylinder, the rotating assembly is arranged at the upper end of the water tank, the water mist is sprayed in all directions through a spherical spray head, and the spray head moves up and down to adsorb dust at different heights.

[0004] However, the technical solution of this patent has the following problems:

[0005] 1. This patent uses a spherical spray head to spray water mist in all directions. The spray head moves up and down to absorb dust at different heights, but it cannot add dust suppressant quantitatively and cannot automatically open the cover when quantitatively discharging materials.

[0006] 2. This patent cannot determine the proportion of dust suppressant to be added according to the dust concentration to adapt to dust reduction.

[0007] Based on this, the present invention designs a mining dust suppression device with adjustable addition ratio to solve the above problems. Summary of the invention

[0008] In view of the above-mentioned shortcomings of the prior art, the present invention provides a mining dust suppression device with an adjustable addition ratio.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A mining dust suppression device with an adjustable addition ratio comprises a frame, a first reduction motor is fixedly mounted on the upper right side of the frame, a special-shaped bracket is fixedly mounted on the upper side of the output shaft of the first reduction motor, a quantitative conveying device is mounted on the special-shaped bracket, and the quantitative conveying device comprises: a feeding assembly and a weighing mechanism, the feeding assembly is mounted on the upper side of the special-shaped bracket, the weighing mechanism is mounted on the lower side of the special-shaped bracket, and an adjustable spraying device is mounted on the left side of the frame.

[0011] Furthermore, the material discharge assembly includes: a material delivery pipeline, a feeding funnel, a spiral blade and a second reduction motor. The material delivery pipeline is fixedly installed on the upper side of the special-shaped bracket through a bracket, the feeding funnel is fixedly installed on the upper side of the material delivery pipeline, the spiral blade is rotatably connected to the material delivery pipeline through a rotating shaft, the second reduction motor is fixedly installed on the right side of the material delivery pipeline through a motor bracket, one end of the spiral blade rotating shaft is fixedly connected to the output shaft of the first reduction motor, and a discharge port is provided on the lower left side of the material delivery pipeline.

[0012] Furthermore, the weighing mechanism includes: a sliding component and a supporting component, the sliding component is installed on the left side of the special-shaped bracket, and the supporting component is installed on the lower side of the special-shaped bracket.

[0013] Furthermore, the sliding assembly includes: an electric cylinder, a sliding plate, a material receiving cylinder, a rotating plate, a weighing sensor and a fixed plate, the electric cylinder is fixedly installed on the right side of the special-shaped bracket, the sliding plate is slidably connected to the left side of the special-shaped bracket, the right side of the sliding plate is fixedly connected to the output end of the electric cylinder, the material receiving cylinder is arranged at the lower side of the discharge port, the material receiving cylinder is fixedly installed on the sliding plate, the rotating plate is rotatably connected to the lower side of the material receiving cylinder through a rotating shaft, the weighing sensor is fixedly installed on the upper side of the rotating plate, and the fixed plate is fixedly installed on the weighing sensor.

[0014] Furthermore, the support assembly includes: a support frame and a rubber roller, the support frame is fixedly installed on the lower side of the special-shaped bracket by fixing screws, and a plurality of rubber rollers are rotatably connected to the support frame by a rotating shaft.

[0015] Furthermore, two stirring devices are symmetrically installed on the middle side of the frame along the central axis of the frame.

[0016] Furthermore, the stirring device includes: a stirring drum, a driving motor, a stirring plate, a water pump and a solenoid valve, the stirring drum is fixedly installed on the middle side of the frame, the driving motor is fixedly installed on the lower side of the stirring drum, the stirring plate is fixedly installed on the output shaft of the driving motor, the water pump is fixedly installed on the lower side of the frame, the input end of the water pump is fixedly connected to the lower side of the stirring drum, the output end of the water pump is fixedly installed with a four-way joint, the upper side of the stirring drum is fixedly connected with a solenoid valve, the solenoid valve is located on the side of the stirring drum close to the central axis of the frame, the ends of the two solenoid valves of the stirring device away from the stirring drum are fixedly connected to the three-way joint, and a liquid level sensor is fixedly installed in the stirring drum for detecting the liquid height in the stirring drum.

[0017] Furthermore, a linkage cover opening device is installed on the left side of the special-shaped bracket.

[0018] Furthermore, the linkage opening cover device includes: a first gear, a second gear and a sealing cover, the first gear is fixedly mounted on the lower side of the special-shaped bracket, the second gear is rotatably connected to the upper side of the mixing drum through a rotating shaft, and the sealing cover is fixedly mounted on the upper side of the second gear.

[0019] Furthermore, the adjustable spraying device includes: a unilateral pitch variable module, a rotating tube, a nozzle and a dust concentration sensor, the unilateral pitch variable module is fixedly installed on the left side of the frame, the middle side of the plurality of rotating tubes is rotatably connected to the left side of the frame through a rotating shaft, a nozzle is fixedly installed on the left side of each rotating tube, the right side of the rotating tube is rotatably connected to the output end of the unilateral pitch variable module through a rotating shaft, the right side of the rotating tube corresponds to the output end of the unilateral pitch variable module one by one, the right side of the rotating tube is fixedly connected to the four-way joint through a hose, the dust concentration sensor is fixedly installed on the left side of the frame, and the unilateral pitch variable module can be set to the XD-8579C unilateral pitch variable module produced by Dongguan Xide Automation Technology Co., Ltd.

[0020] The first reduction motor, the second reduction motor, the electric cylinder, the weighing sensor, the drive motor, the water pump, the single-sided variable pitch module and the dust concentration sensor are all controlled by an external controller.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention monitors the dust concentration in the mine in real time through the dust concentration sensor of the adjustable spraying device, determines the addition ratio of the dust suppressant according to the dust concentration, and the weighing sensor detects that the dust suppressant on the fixed plate reaches the preset value, the quantitative conveying device moves to the upper side of the mixing drum, and the electric cylinder output shaft of the sliding assembly of the weighing mechanism extends, and the extension of the electric cylinder output shaft drives the sliding plate to move in the direction away from the electric cylinder, and the movement of the sliding plate in the direction away from the electric cylinder drives the receiving cylinder to move in the direction away from the electric cylinder, and the movement of the receiving cylinder in the direction away from the electric cylinder drives the fixed plate to move in the direction away from the electric cylinder. The fixed plate moves on the rubber roller of the support assembly, and the rotation of the rubber roller reduces the resistance of the fixed plate to movement. After the fixed plate moves out of the rubber roller on the support frame, the fixed plate rotates under the action of gravity, causing the dust suppressant on the fixed plate to fall, which is conducive to quantitative delivery of the dust suppressant; the output end of the single-sided variable pitch module is counted from front to back, and the moving distance is in a decreasing state, so that each rotating tube rotates at a different angle, so that the equipment is placed close to the right wall of the mine cave, and the nozzle can face the left wall of the mine cave. The water pump is started to pump the solution in the mixing drum into the rotating tube, and it is sprayed from the nozzle to spray the entire mine cave with dust, which is conducive to spraying dust on the entire mine cave and covering mine caves of different sizes;

[0022] 2. Move the equipment to a suitable position in the mine cave, place the equipment close to the side wall of the mine cave, connect the external water inlet pipe to the three-way joint of the stirring device, open the solenoid valve, and the water in the external water inlet pipe enters the stirring drum through the solenoid valve. The liquid level sensor in the stirring drum detects the liquid height in the stirring drum. When the liquid height in the stirring drum reaches the preset value, the liquid level sensor transmits an electrical signal to the external controller. The external controller controls the solenoid valve to close, and the quantitatively delivered dust suppressant falls into the stirring drum of the stirring device. The driving motor rotates to drive the stirring plate to rotate. The stirring plate rotates to mix the dust suppressant and a certain amount of water to form a solution of a certain proportion. The water pump starts to pump the solution in the stirring drum into the adjustable spraying device. The adjustable spraying device is used to spray dust, which is conducive to spraying solutions containing different dust suppressant concentrations.

[0023] 3. When a proper amount of dust suppressant is added into the mixing drum, the external controller controls the output shaft of the first reduction motor to rotate, which drives the special-shaped bracket to rotate, which drives the first gear to rotate, which drives the second gear to rotate, which drives the sealing cover to rotate. At this time, the sealing cover is opened, and the rotation of the special-shaped bracket drives the quantitative conveying device to rotate, so that the quantitative conveying device rotates to the upper side of the mixing drum, and the dust suppressant is quantitatively fed according to the actual situation, which is conducive to the opening of the sealing cover while the quantitative conveying device rotates, so that the cover can be automatically opened when the quantitative material is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 It is a front view of the present invention;

[0027] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 4 A top view of the present invention;

[0029] Figure 5 For along Figure 4 AA direction cross-sectional view;

[0030] Figure 6 It is a structural schematic diagram of the quantitative delivery device of the present invention;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the overall cross-sectional view of the quantitative delivery device of the present invention;

[0032] Figure 8 It is a partial structural schematic diagram of the dust suppression agent conveying state of the present invention.

[0033] The numbers in the figure represent:

[0034] 1. Frame; 2. First reduction motor; 3. Special-shaped bracket; 4. Quantitative conveying device; 41. Conveying pipeline; 42. Feeding funnel; 43. Spiral blade; 44. Second reduction motor; 45. Discharge port; 46. Electric cylinder; 47. Sliding plate; 48. Receiving cylinder; 49. Rotating plate; 410. Weighing sensor; 411. Fixed plate; 412. Support frame; 413. Rubber roller; 5. Adjustable spraying device; 51. Single-sided variable pitch module; 52. Rotating tube; 53. Sprinkler; 54. Dust concentration sensor; 6. Stirring device; 61. Stirring drum; 62. Driving motor; 63. Stirring plate; 64. Water pump; 65. Solenoid valve; 7. Linkage opening device; 71. First gear; 72. Second gear; 73. Sealing cover; 8. Four-way joint; 9. Three-way joint. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] The present invention will be further described below in conjunction with the embodiments.

[0037] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0038] Embodiment 1: In some embodiments, please refer to Figure 1-Figure 8 A mining dust suppression device with an adjustable addition ratio comprises a frame 1, a first reduction motor 2 is fixedly mounted on the upper right side of the frame 1, a special-shaped bracket 3 is fixedly mounted on the upper side of the output shaft of the first reduction motor 2, a quantitative conveying device 4 is mounted on the special-shaped bracket 3, and the quantitative conveying device 4 comprises: a feeding assembly and a weighing mechanism, the feeding assembly is mounted on the upper side of the special-shaped bracket 3, the weighing mechanism is mounted on the lower side of the special-shaped bracket 3, and an adjustable spraying device 5 is mounted on the left side of the frame 1.

[0039] The output shaft of the first reduction motor 2 rotates to drive the special-shaped bracket 3 to rotate, and the rotation of the special-shaped bracket 3 drives the quantitative conveying device 4 to rotate, so that the quantitative conveying device 4 can rotate back and forth to quantitatively feed the dust suppressant, the unloading component unloads, and the weighing mechanism weighs and quantifies the dust suppressant transported by the unloading component, and the spraying device 5 can be adjusted to carry out mine spraying operations.

[0040] The unloading assembly includes: a feed pipeline 41, a feeding funnel 42, a spiral blade 43 and a second reduction motor 44. The feed pipeline 41 is fixedly installed on the upper side of the special-shaped bracket 3 through a bracket, the feeding funnel 42 is fixedly installed on the upper side of the feed pipeline 41, the spiral blade 43 is rotatably connected to the feed pipeline 41 through a rotating shaft, the second reduction motor 44 is fixedly installed on the right side of the feed pipeline 41 through a motor bracket, one end of the spiral blade 43 rotating shaft is fixedly connected to the output shaft of the first reduction motor 2, and a discharge port 45 is provided on the lower left side of the feed pipeline 41.

[0041] An appropriate amount of dust suppressant is added to the feeding funnel 42 of the feeding assembly, and the output shaft of the second reduction motor 44 rotates to drive the spiral blade 43 to rotate. The rotation of the spiral blade 43 drives the dust suppressant to move slowly to the left in the feeding pipe 41, and the dust suppressant falls into the weighing mechanism through the discharge port 45 on the lower left side of the feeding pipe 41.

[0042] The weighing mechanism includes: a sliding assembly and a supporting assembly, wherein the sliding assembly is installed on the left side of the special-shaped bracket 3 , and the supporting assembly is installed on the lower side of the special-shaped bracket 3 .

[0043] The sliding assembly includes: an electric cylinder 46, a sliding plate 47, a material receiving cylinder 48, a rotating plate 49, a weighing sensor 410 and a fixed plate 411. The electric cylinder 46 is fixedly installed on the right side of the special-shaped bracket 3, the sliding plate 47 is slidably connected to the left side of the special-shaped bracket 3, the right side of the sliding plate 47 is fixedly connected to the output end of the electric cylinder 46, the material receiving cylinder 48 is arranged on the lower side of the discharge port 45, the material receiving cylinder 48 is fixedly installed on the sliding plate 47, the rotating plate 49 is rotatably connected to the lower side of the material receiving cylinder 48 through a rotating shaft, the weighing sensor 410 is fixedly installed on the upper side of the rotating plate 49, and the fixed plate 411 is fixedly installed on the weighing sensor 410.

[0044] The support assembly includes: a support frame 412 and a rubber roller 413. The support frame 412 is fixedly mounted on the lower side of the special-shaped bracket 3 by fixing screws, and a plurality of rubber rollers 413 are rotatably connected to the support frame 412 by a rotating shaft.

[0045] The dust suppressant falls onto the fixed plate 411 of the sliding assembly of the weighing mechanism through the discharge port 45 on the lower left side of the feeding pipe 41, and the weighing sensor 410 on the lower side of the fixed plate 411 weighs the dust suppressant on the upper side of the fixed plate 411. The weighing sensor 410 detects that the dust suppressant on the fixed plate 411 reaches a preset value, and the weighing sensor 410 transmits an electrical signal to an external controller, and the external controller controls the output shaft of the first reduction motor 2 to rotate, and the rotation of the output shaft of the first reduction motor 2 drives the special-shaped bracket 3 to rotate, and the rotation of the special-shaped bracket 3 drives the weighing mechanism of the quantitative conveying device 4 to move to a preset position, and the output shaft of the electric cylinder 46 of the sliding assembly of the weighing mechanism extends, and the electric cylinder 4 The output shaft extends to drive the sliding plate 47 to move away from the electric cylinder 46. The sliding plate 47 moves away from the electric cylinder 46, driving the receiving cylinder 48 to move away from the electric cylinder 46. The receiving cylinder 48 moves away from the electric cylinder 46, driving the fixed plate 411 to move away from the electric cylinder 46. The fixed plate 411 moves on the rubber roller 413 of the support assembly. The rotation of the rubber roller 413 reduces the resistance of the fixed plate 411 to movement. After the fixed plate 411 moves out of the rubber roller 413 on the support frame 412, the fixed plate 411 rotates under the action of gravity, causing the dust suppressant on the fixed plate 411 to fall, which is beneficial to quantitative transportation of the dust suppressant.

[0046] Embodiment 2: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, two stirring devices 6 are symmetrically installed front and back along the central axis of the frame 1 on the middle side of the frame 1.

[0047] The stirring device 6 includes: a stirring drum 61, a driving motor 62, a stirring plate 63, a water pump 64 and a solenoid valve 65. The stirring drum 61 is fixedly installed on the middle side of the frame 1, the driving motor 62 is fixedly installed on the lower side of the stirring drum 61, the stirring plate 63 is fixedly installed on the output shaft of the driving motor 62, the water pump 64 is fixedly installed on the lower side of the frame 1, the input end of the water pump 64 is fixedly connected to the lower side of the stirring drum 61, and the output end of the water pump 64 is fixedly installed with a four-way joint 8. The upper side of the stirring drum 61 is fixedly connected with a solenoid valve 65, and the solenoid valve 65 is located on the side of the stirring drum 61 close to the central axis of the frame 1. The ends of the two solenoid valves 65 of the stirring device 6 away from the stirring drum 61 are fixedly connected to the three-way joint 9. A liquid level sensor is fixedly installed in the stirring drum 61 for detecting the liquid height in the stirring drum 61.

[0048] The equipment is moved to a suitable position in the mine cave, and the equipment is placed close to the side wall of the mine cave. The external water inlet pipe is connected to the three-way joint 9 of the stirring device 6, and the solenoid valve 65 is opened. The water in the external water inlet pipe enters the stirring drum 61 through the solenoid valve 65. The stirring drum 61 has a liquid level sensor to detect the liquid height in the stirring drum 61. When the liquid height in the stirring drum 61 reaches a preset value, the liquid level sensor transmits an electrical signal to the external controller, and the external controller controls the solenoid valve 65 to close. The quantitatively delivered dust suppressant falls into the stirring drum 61 of the stirring device 6, and the driving motor 62 rotates to drive the stirring plate 63 to rotate. The stirring plate 63 rotates to mix the dust suppressant and a certain amount of water to form a solution of a certain proportion. The water pump 64 is started to pump the solution in the stirring drum 61 into the adjustable spraying device 5. The adjustable spraying device 5 is used to spray dust reduction, which is conducive to spraying solutions containing different dust suppressant concentrations and saves the use of dust suppressant.

[0049] Embodiment 3: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, a linkage cover opening device 7 is installed on the left side of the special-shaped bracket 3.

[0050] The linkage opening cover device 7 includes: a first gear 71, a second gear 72 and a sealing cover 73. The first gear 71 is fixedly mounted on the lower side of the special-shaped bracket 3, the second gear 72 is rotatably connected to the upper side of the mixing drum 61 through a rotating shaft, and the sealing cover 73 is fixedly mounted on the upper side of the second gear 72.

[0051] When an appropriate amount of dust suppressant is to be added into the mixing drum 61, the external controller controls the output shaft of the first reduction motor 2 to rotate and drive the special-shaped bracket 3 to rotate, the special-shaped bracket 3 rotates and drives the first gear 71 to rotate, the first gear 71 rotates and drives the second gear 72 to rotate, the second gear 72 rotates and drives the sealing cover 73 to rotate, at this time the sealing cover 73 is opened, the special-shaped bracket 3 rotates and drives the quantitative conveying device 4 to rotate, so that the quantitative conveying device 4 rotates to the upper side of the mixing drum 61, and the dust suppressant is quantitatively fed according to the actual situation, which is conducive to the opening of the sealing cover 73 while the quantitative conveying device 4 rotates, so that the cover can be automatically opened when the quantitative material is discharged.

[0052] The adjustable spraying device 5 includes: a unilateral pitch variable module 51, a rotating tube 52, a nozzle 53 and a dust concentration sensor 54. The unilateral pitch variable module 51 is fixedly installed on the left side of the frame 1. The middle side of the plurality of rotating tubes 52 is rotatably connected to the left side of the frame 1 through a rotating shaft. A nozzle 53 is fixedly installed on the left side of each rotating tube 52. The right side of the rotating tube 52 is rotatably connected to the output end of the unilateral pitch variable module 51 through a rotating shaft. The right side of the rotating tube 52 corresponds to the output end of the unilateral pitch variable module 51 one by one. The right side of the rotating tube 52 is fixedly connected to the four-way joint 8 through a hose. The dust concentration sensor 54 is fixedly installed on the left side of the frame 1. The unilateral pitch variable module 51 can be set to the XD-8579C unilateral pitch variable module produced by Dongguan Xide Automation Technology Co., Ltd.

[0053] The dust concentration sensor 54 of the adjustable spraying device 5 monitors the dust concentration in the mine in real time, and determines the addition ratio of the dust suppressant according to the dust concentration. The unilateral variable pitch module 51 of the adjustable spraying device 5 is started, and the output end of the unilateral variable pitch module 51 moves backward to drive the right side of the rotating tube 52 to move backward, and the right side of the rotating tube 52 moves backward to make the front side of the rotating tube 52 rotate forward. Since the output end of the unilateral variable pitch module 51 is counted from front to back, the moving distance is in a decreasing state, so that each rotating tube 52 rotates The angles are different. From front to back, the rotation angle of each rotating tube 52 is in a decreasing state. The rotating tube 52 on the front side has the largest rotation angle, and the rotating tube 52 on the rear side has the smallest rotation angle. Both rotate to the front side, so that the equipment is placed close to the right wall of the mine cave, and the nozzle 53 can be directed toward the left wall of the mine cave. The water pump 64 is started to pump the solution in the mixing drum 61 into the rotating tube 52, and the solution is sprayed out from the nozzle 53 to spray the entire mine cave for dust reduction, which is beneficial to spraying and dust reduction on the entire mine cave and covering mine caves of different sizes.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mining dust suppression device with adjustable addition ratio, comprising a frame (1), characterized in that: A first reduction motor (2) is fixedly mounted on the upper right side of the frame (1); a special-shaped bracket (3) is fixedly mounted on the upper side of the output shaft of the first reduction motor (2); a quantitative conveying device (4) is mounted on the special-shaped bracket (3); the quantitative conveying device (4) comprises: a material discharge assembly and a weighing mechanism; the material discharge assembly is mounted on the upper side of the special-shaped bracket (3); the weighing mechanism is mounted on the lower side of the special-shaped bracket (3); and an adjustable spraying device (5) is mounted on the left side of the frame (1).

2. The mining dust suppression device with adjustable addition ratio according to claim 1 is characterized in that: The unloading assembly comprises: a feeding pipeline (41), a feeding hopper (42), a spiral blade (43) and a second reduction motor (44); the feeding pipeline (41) is fixedly mounted on the upper side of the special-shaped bracket (3) through a bracket; the feeding hopper (42) is fixedly mounted on the upper side of the feeding pipeline (41); the spiral blade (43) is rotatably connected to the feeding pipeline (41) through a rotating shaft; the second reduction motor (44) is fixedly mounted on the right side of the feeding pipeline (41) through a motor bracket; one end of the rotating shaft of the spiral blade (43) is fixedly connected to the output shaft of the first reduction motor (2); and a discharge port (45) is provided on the lower left side of the feeding pipeline (41).

3. The mining dust suppression device with adjustable addition ratio according to claim 2, characterized in that: The weighing mechanism comprises: a sliding assembly and a supporting assembly, wherein the sliding assembly is installed on the left side of the special-shaped bracket (3), and the supporting assembly is installed on the lower side of the special-shaped bracket (3).

4. The mining dust suppression device with adjustable addition ratio according to claim 3 is characterized in that: The sliding assembly comprises: an electric cylinder (46), a sliding plate (47), a material receiving cylinder (48), a rotating plate (49), a weighing sensor (410) and a fixed plate (411); the electric cylinder (46) is fixedly mounted on the right side of the special-shaped bracket (3); the sliding plate (47) is slidably connected to the left side of the special-shaped bracket (3); the right side of the sliding plate (47) is fixedly connected to the output end of the electric cylinder (46); the material receiving cylinder (48) is arranged at the lower side of the material discharge port (45); the material receiving cylinder (48) is fixedly mounted on the sliding plate (47); the rotating plate (49) is rotatably connected to the lower side of the material receiving cylinder (48) via a rotating shaft; the weighing sensor (410) is fixedly mounted on the upper side of the rotating plate (49); and the fixed plate (411) is fixedly mounted on the weighing sensor (410).

5. The mining dust suppression device with adjustable addition ratio according to claim 4 is characterized in that: The support assembly comprises: a support frame (412) and a rubber roller (413); the support frame (412) is fixedly mounted on the lower side of the special-shaped bracket (3) by means of fixing screws; and a plurality of rubber rollers (413) are rotatably connected to the support frame (412) by means of a rotating shaft.

6. The mining dust suppression device with adjustable addition ratio according to claim 5, characterized in that: Two stirring devices (6) are symmetrically installed on the middle side of the frame (1) along the central axis of the frame (1).

7. The mining dust suppression device with adjustable addition ratio according to claim 6, characterized in that: The stirring device (6) comprises: a stirring drum (61), a driving motor (62), a stirring plate (63), a water pump (64) and a solenoid valve (65); the stirring drum (61) is fixedly mounted on the middle side of the frame (1); the driving motor (62) is fixedly mounted on the lower side of the stirring drum (61); the stirring plate (63) is fixedly mounted on the output shaft of the driving motor (62); the water pump (64) is fixedly mounted on the lower side of the frame (1); the input end of the water pump (64) is fixedly connected to the lower side of the stirring drum (61); a four-way joint (8) is fixedly mounted on the output end of the water pump (64); the upper side of the stirring drum (61) is fixedly connected with a solenoid valve (65); the solenoid valve (65) is located on a side of the stirring drum (61) close to the central axis of the frame (1); one end of the two solenoid valves (65) of the stirring device (6) away from the stirring drum (61) is fixedly connected to a three-way joint (9); and a liquid level sensor is fixedly mounted in the stirring drum (61).

8. The mining dust suppression device with adjustable addition ratio according to claim 7, characterized in that: A linkage cover opening device (7) is installed on the left side of the special-shaped bracket (3).

9. The mining dust suppression device with adjustable addition ratio according to claim 8, characterized in that: The linkage cover opening device (7) comprises: a first gear (71), a second gear (72) and a sealing cover (73); the first gear (71) is fixedly mounted on the lower side of the special-shaped bracket (3); the second gear (72) is rotatably connected to the upper side of the mixing drum (61) via a rotating shaft; and the sealing cover (73) is fixedly mounted on the upper side of the second gear (72).

10. The mining dust suppression device with adjustable addition ratio according to claim 9, characterized in that: The adjustable spraying device (5) comprises: a single-sided pitch-variable module (51), a rotating tube (52), a nozzle (53) and a dust concentration sensor (54); the single-sided pitch-variable module (51) is fixedly mounted on the left side of the frame (1); the middle side of a plurality of rotating tubes (52) is rotationally connected to the left side of the frame (1) via a rotating shaft; a nozzle (53) is fixedly mounted on the left side of each rotating tube (52); the right side of the rotating tube (52) is rotationally connected to the output end of the single-sided pitch-variable module (51) via a rotating shaft; the right side of the rotating tube (52) corresponds to the output end of the single-sided pitch-variable module (51) in one-to-one correspondence; the right side of the rotating tube (52) is fixedly connected to the four-way joint (8) via a hose; and the dust concentration sensor (54) is fixedly mounted on the left side of the frame (1).

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