A telescopic multi-directional covering dust-proof spraying device for fully-mechanized coal mining face

Abstract

The utility model discloses a telescopic multi -directional covering's fully -mechanized coal mining face dustproof spray device, including base, the base is fixedly connected with the water collecting tank, one side of water collecting tank is provided with the water pump casing for accommodating water pump, and water pump casing bottom end is fixedly connected with base, and water pump casing top end rotatably connected with the support cylinder, and the support cylinder outside is provided with angle adjusting assembly for the circumferential rotation action of support cylinder, and the support cylinder is provided with the water outlet pipe spare, and the bottom of water outlet pipe spare is communicated with the water pump in water pump casing through first telescopic pipe, and the top of water outlet pipe spare is communicated with telescopic spray assembly after extending from support cylinder top end. The utility model discloses the structure has realized telescopic multi -directional, multi -angle's covering spray function, has improved the dust removal effect of spray device.

Description

Technical Field

[0001] This utility model relates to the field of coal mine dust removal, and in particular to a retractable, multi-directional covering dust suppression spray device for fully mechanized mining faces. Background Technology

[0002] A fully mechanized mining face refers to a working face in a coal mine where coal is mined using fully mechanized equipment. In order to create a well-ventilated underground environment and improve visibility, a secondary dust suppression technology using spray negative pressure is implemented in fully mechanized mining faces to control coal dust generated during mining operations, improve the quality of the underground environment, and ensure efficient production activities.

[0003] Patent No. ZL201720342166.0 discloses a coal mine spray dust suppression system, which can achieve the effect of spray dust suppression. However, the spraying flexibility of this spray system is poor, and it is difficult to carry out spray dust suppression operations in multi-directional and multi-angle spaces, which seriously affects the dust suppression effect of the fully mechanized mining face. It is necessary to improve it. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a simple, retractable, multi-directional dust suppression spray device for fully mechanized mining faces that improves dust removal efficiency.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A retractable, multi-directional dust suppression spray device for fully mechanized mining faces includes a base, on which a water collection tank is fixedly connected. A water pump housing for accommodating a water pump is provided on one side of the water collection tank. The bottom end of the water pump housing is fixedly connected to the base, and a support cylinder is rotatably connected to the top end of the water pump housing. An angle adjustment component for circumferential rotation of the support cylinder is provided on the outside of the support cylinder. A water outlet pipe is provided inside the support cylinder. The bottom end of the water outlet pipe is connected to the water pump located inside the water pump housing through a first telescopic pipe. The top end of the water outlet pipe extends from the top end of the support cylinder and is connected to the telescopic spray component.

[0006] Furthermore, the water pump housing is fixedly connected to the base, one end of the water pump is connected to the inside of the water collection tank through the water inlet pipe, and the other end of the water pump is connected to the bottom end of the first telescopic pipe through the diversion pipe. The first telescopic pipe is arranged longitudinally, and the top end of the first telescopic pipe is connected to the bottom end of the water outlet pipe through a rotary joint.

[0007] Furthermore, the angle adjustment component includes a drive motor, a power gear, and a movable gear ring. The drive motor is fixedly connected to the top of the water pump housing, and the output shaft of the drive motor is arranged facing upward and is connected to the power gear for transmission. The power gear is meshed with the movable gear ring that is fixedly sleeved on the outer periphery of the support cylinder.

[0008] Furthermore, the telescopic spray assembly includes a second telescopic tube, an electric actuator, and a spray pipe. The second telescopic tube is arranged laterally, and the top end of the water outlet fitting is bent at 90 degrees and fixedly connected to one end of the second telescopic tube. The other end of the second telescopic tube is fixedly connected to one end of the spray pipe. An electric actuator is provided on the outside of the second telescopic tube. The telescopic direction of the electric actuator is consistent with the axial direction of the second telescopic tube. One end of the electric actuator is fixedly connected to the water outlet fitting through a first fixing sleeve, and the other end of the electric actuator is fixedly connected to the spray pipe through a second fixing sleeve.

[0009] Furthermore, one end of the spray pipe is connected to one end of the second telescopic pipe, the other end of the spray pipe is sealed, and several spray nozzles are provided at the bottom end of the spray pipe along the length of the spray pipe. The spray nozzles are connected to the inside of the spray pipe, and the spray pipe is provided with an air inlet port for connecting to the air passage pipe.

[0010] Furthermore, a height adjustment component is provided inside the support cylinder to adjust the height of the water outlet pipe fitting. The height adjustment component includes a servo motor, an adjusting screw, and a screw sleeve. The adjusting screw is arranged longitudinally, and its length direction is consistent with the length direction of the water outlet pipe fitting. One end of the adjusting screw is connected to the servo motor fixedly connected to the inner wall of the support cylinder, and the other end of the adjusting screw is rotatably connected to the inner wall of the support cylinder. One end of the screw sleeve is sleeved on the outside of the adjusting screw and threadedly connected to the adjusting screw, and the other end of the screw sleeve is fixedly sleeved on the outer circumference of the water outlet pipe fitting.

[0011] Furthermore, the outer wall of the lead screw sleeve is provided with a ball groove and a ball is embedded therein. One side of the ball extends out of the ball groove and contacts the inner wall of the support cylinder, so as to reduce the friction when the lead screw sleeve is adjusted in height and improve the stability of the lifting action.

[0012] Furthermore, the water collection tank is equipped with a filter assembly for filtering the water flow; the filter assembly includes a filter bag, a filter plate, and a fine filter screen. The filter bag, filter plate, and fine filter screen are all arranged in the water collection tank from top to bottom, and the pore size of the filter bag, filter plate, and fine filter screen decreases in that order. The edges of the filter bag, filter plate, and fine filter screen are snapped together with the inner wall of the water collection tank.

[0013] Furthermore, a PLC controller is fixedly connected to the side wall of the water collection tank. The input terminal of the PLC controller is connected to the sensor module fixedly connected to the outer wall of the support cylinder and receives the monitoring data from the sensor module. The output terminal of the PLC controller is connected to the water pump, drive motor, servo motor, and electric actuator and controls their working status.

[0014] Furthermore, the sensor module integrates a dust concentration sensor for monitoring dust concentration, an infrared sensor for distance detection, and a position sensor for positioning. The dust concentration sensor, infrared sensor, and position sensor are all connected to the input terminals of the PLC controller.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are: 1. This utility model, through the design of a support cylinder and an angle adjustment component, enables the spray pipe to spray dust suppression. During the dust suppression process, the drive motor drives the power gear to rotate, which can mesh with the movable gear ring to drive the support cylinder to rotate synchronously and adjust. The water outlet pipe inside the support cylinder can drive the spray pipe to adjust the spray angle. At the same time, the servo motor can drive the adjusting screw to rotate. The screw sliding sleeve outside the adjusting screw can drive the water outlet pipe to move up and down to adjust the spray height. This structure realizes the telescopic multi-directional and multi-angle coverage spraying function, improving the dust removal effect of the spray device. 2. This utility model, through the design of a water collection tank and a filter assembly, allows the filter bag, filter plate and fine filter inside the water collection tank to soften and filter the water in sequence. The water pump can pump the filtered water into the interior of the spray pipe to form a fine water mist. This structure enhances the durability of the spray nozzle, avoids the clogging of the spray pipe, and improves the performance of the spray device. 3. This utility model, through the design of a telescopic spray assembly at the top of the water outlet pipe, allows for adjustment of the spraying distance of the spray pipe according to spraying requirements during dust suppression. During adjustment, the electric actuator pushes the spray pipe to move horizontally, and the second telescopic pipe can achieve normal extension and retraction and spraying functions. The spray pipe used for dust suppression spraying adopts an air-water mixing nozzle, which uses compressed air and water to generate fine water mist through a special structure. The water mist particles are similar in size to respirable dust particles. Through mechanisms such as Brownian motion and diffusion effect, the collision probability and condensation efficiency can be greatly improved, enhancing the adsorption force between water mist and dust, thereby further improving the dust reduction efficiency and dust removal effect of the fully mechanized mining face. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the angle adjustment component. Figure 3 This is a schematic diagram of the telescopic spray assembly. Figure 4 This is a schematic diagram of the height adjustment component. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art to all other embodiments obtained without creative effort should be included within the protection scope of the present utility model.

[0019] like Figures 1 to 4 As shown, this embodiment discloses a retractable, multi-directional covering dust suppression spray device for fully mechanized mining faces, including a base 1. The bottom of the base 1 is equipped with casters 101 for easy overall movement. A water collection tank 2 is fixedly connected to the left side of the top of the base 1. A filter assembly 3 is detachably installed inside the water collection tank 2. A PLC controller 4 is fixedly installed on the right side of the water collection tank 2. A water pump housing 11 is fixedly installed on the right side of the top of the base 1. A support cylinder 6 is movably installed on the top of the water pump housing 11. A water outlet pipe 7 is installed inside the support cylinder 6. The unit is equipped with a height and angle adjustment component 5. A telescopic spray component 8 is fixedly installed at the top of the water outlet pipe 7. A water pump 10 is fixedly installed inside the water pump housing. The input end of the water pump 10 is connected to the inside of the water collection tank 2 through the water inlet pipe 1001. The output end of the water pump 10 is connected to the first telescopic pipe 505 through the diversion pipe 1002. A sensor module 9 is fixedly installed on the right side of the support cylinder 6. The sensor module 9 includes a dust concentration sensor, an infrared sensor, and a position sensor. The sensor module 9 is electrically connected to the PLC controller 4. The height and angle adjustment assembly 5 includes an adjustment screw 502, which is movably installed on the left side inside the support cylinder 6. A screw sleeve 503 is installed on the external thread of the adjustment screw 502. The right side of the screw sleeve 503 is fixedly connected to the water outlet pipe fitting 7. A ball bearing 5031 is provided on the outer wall of the screw sleeve 503 to contact the inner wall of the support cylinder 6 to reduce the friction of its lifting and lowering movement. A servo motor 504 is installed at the top inside the support cylinder 6. The output end of the servo motor 504 is fixedly connected to the adjustment screw 502. A movable gear ring 501 is fixedly sleeved at the bottom outside the support cylinder 6. A drive motor 507 is fixedly installed at the top of the water pump housing 11. A power gear 506 is fixedly connected to the output end of the drive motor 507. The movable gear ring 501 and the power gear 506 are meshed. During the dust suppression process, the drive motor 507 drives the power gear 506 to rotate and engage the movable gear ring 501, which in turn drives the support cylinder 6 to rotate synchronously. The water outlet pipe 7 inside the support cylinder 6 can drive the spray pipe 803 to adjust the spraying angle. At the same time, the servo motor 504 can drive the adjusting screw 502 to rotate, and the screw sleeve 503 outside the adjusting screw 502 can drive the water outlet pipe 7 to move up and down to adjust the spraying height of the spray pipe 803.

[0020] The telescopic spray assembly 8 includes a second telescopic tube 801 and an electric actuator 802. The left side of the second telescopic tube 801 is fixedly connected to the water outlet pipe 7, and the right side of the second telescopic tube 801 is fixedly connected to a spray pipe 803. The spray pipe 803 adopts an air-water mixing spray nozzle 8031. The left and right sides of the electric actuator 802 are both fixedly connected to fixing sleeves 804. The fixing sleeves 804 are respectively installed on the outside of the water outlet pipe 7 and the spray pipe 803 to realize the fixed installation operation of the electric actuator. During spraying, the spraying distance of the spray pipe 803 can be adjusted according to the spraying requirements. When adjusting, the electric actuator 802 pushes the spray pipe 803 to move horizontally. The first telescopic pipe 505 and the second telescopic pipe 801 are telescopic corrugated pipes, which can realize normal extension and spraying functions. The spray pipe 803 used for dust suppression spraying adopts an air-water mixing spray nozzle 8031, which uses compressed air and water to generate fine water mist through a special structure, which can greatly improve the collision probability and condensation efficiency, enhance the adsorption force between water mist and dust, and thus improve dust suppression efficiency.

[0021] The input end of the water pump 10 is connected to the inside of the water collection tank 2 through the inlet pipe fitting 1001. The top end of the first telescopic pipe 505 is connected to the outlet pipe fitting 7 by a mechanical seal rotary joint. The end faces of the two rings inside the mechanical seal rotary joint are ground to be very smooth. Under the combined action of spring force and medium pressure, a very thin liquid film is formed to achieve "dynamic sealing". The filter assembly 3 includes a filter bag 301, which is installed inside the water collection tank 2. A filter plate 302 is provided below the filter bag 301, and a fine filter screen 303 is provided below the filter plate 302. The filter bag 301, the filter plate 302 and the fine filter screen 303 are all installed inside the water collection tank 2 by snap-fit. Mechanical seal rotary joints are dynamic sealing devices that connect fixed pipelines to rotating equipment. They achieve media transmission sealing between rotating and stationary parts through a precision mechanical structure. They include a rotating shaft, a rotating ring, a housing, a stationary ring, a sealing pair, a spring, a bellows compensator, a precision ball bearing, and an anti-rotation pin. This is existing technology and will not be described in detail. like Figure 1As shown, the water required for spraying can first enter the interior of the water collection tank 2. The filter screen 301, filter plate 302 and fine filter screen 303 inside the water collection tank 2 can soften and filter the water in sequence. The water pump 10 can pump the filtered water into the interior of the spray pipe 803 to form a fine water mist, which enhances the durability of the nozzle structure.

[0022] The beneficial effects of this utility model are as follows: 1. This utility model, through the design of a support cylinder and an angle adjustment component, enables the spray pipe to spray dust suppression. During the dust suppression process, the drive motor drives the power gear to rotate, which can mesh with the movable gear ring to drive the support cylinder to rotate synchronously and adjust. The water outlet pipe inside the support cylinder can drive the spray pipe to adjust the spray angle. At the same time, the servo motor can drive the adjusting screw to rotate. The screw sliding sleeve outside the adjusting screw can drive the water outlet pipe to move up and down to adjust the spray height. This structure realizes the telescopic multi-directional and multi-angle coverage spraying function, improving the dust removal effect of the spray device. 2. This utility model, through the design of a water collection tank and a filter assembly, allows the filter bag, filter plate and fine filter inside the water collection tank to soften and filter the water in sequence. The water pump can pump the filtered water into the interior of the spray pipe to form a fine water mist. This structure enhances the durability of the spray nozzle, avoids the clogging of the spray pipe, and improves the performance of the spray device. 3. This utility model, through the design of a telescopic spray assembly at the top of the water outlet pipe, allows for adjustment of the spraying distance of the spray pipe according to spraying requirements during dust suppression. During adjustment, the electric actuator pushes the spray pipe to move horizontally, and the second telescopic pipe can achieve normal extension and retraction and spraying functions. The spray pipe used for dust suppression spraying adopts an air-water mixing nozzle, which uses compressed air and water to generate fine water mist through a special structure. The water mist particles are similar in size to respirable dust particles. Through mechanisms such as Brownian motion and diffusion effect, the collision probability and condensation efficiency can be greatly improved, enhancing the adsorption force between water mist and dust, thereby further improving the dust reduction efficiency and dust removal effect of the fully mechanized mining face.

Claims

1. A retractable, multi-directional dust suppression spray device for fully mechanized mining faces, comprising a base, on which a water collection tank is fixedly connected, characterized in that: A water pump housing is provided on one side of the water collection tank to accommodate the water pump. The bottom end of the water pump housing is fixedly connected to the base. A support cylinder is rotatably connected to the top end of the water pump housing. An angle adjustment component for circumferential rotation of the support cylinder is provided on the outside of the support cylinder. A water outlet pipe is provided inside the support cylinder. The bottom end of the water outlet pipe is connected to the water pump installed in the water pump housing through a first telescopic pipe. The top end of the water outlet pipe extends from the top of the support cylinder and is connected to the telescopic spray component.

2. The retractable multi-directional covering dust suppression spray device for fully mechanized mining faces as described in claim 1, characterized in that: The water pump housing is fixedly connected to the base. One end of the water pump is connected to the inside of the water collection tank through the water inlet pipe, and the other end of the water pump is connected to the bottom end of the first telescopic pipe through the diversion pipe. The first telescopic pipe is arranged longitudinally, and the top end of the first telescopic pipe is connected to the bottom end of the water outlet pipe through a rotary joint.

3. The retractable multi-directional dust suppression spray device for fully mechanized mining faces as described in claim 1, characterized in that: The angle adjustment assembly includes a drive motor, a power gear, and a movable gear ring. The drive motor is fixedly connected to the top of the water pump housing. The output shaft of the drive motor is set upward and is connected to the power gear for transmission. The power gear is meshed with the movable gear ring that is fixedly sleeved on the outer circumference of the support cylinder.

4. The retractable multi-directional dust suppression spray device for fully mechanized mining faces as described in claim 1, characterized in that: The telescopic spray assembly includes a second telescopic tube, an electric actuator, and a spray pipe. The second telescopic tube is arranged horizontally. The top end of the water outlet fitting is bent at 90 degrees and fixedly connected to one end of the second telescopic tube. The other end of the second telescopic tube is fixedly connected to one end of the spray pipe. An electric actuator is arranged on the outside of the second telescopic tube. The telescopic direction of the electric actuator is consistent with the axial direction of the second telescopic tube. One end of the electric actuator is fixedly connected to the water outlet fitting through a first fixing sleeve, and the other end of the electric actuator is fixedly connected to the spray pipe through a second fixing sleeve.

5. The retractable multi-directional covering dust suppression spray device for fully mechanized mining faces as described in claim 4, characterized in that: One end of the spray pipe is connected to one end of the second telescopic pipe, and the other end of the spray pipe is sealed. Several spray nozzles are provided at the bottom end of the spray pipe along the length of the spray pipe. The spray nozzles are connected to the inside of the spray pipe. An air inlet port for connecting with the air pipeline is provided on the spray pipe.

6. The retractable multi-directional dust suppression spray device for fully mechanized mining faces as described in claim 1, characterized in that: The support cylinder is equipped with a height adjustment component, which adjusts the height of the water outlet pipe fitting. The height adjustment component includes a servo motor, an adjusting screw, and a screw sleeve. The adjusting screw is arranged longitudinally, and its length direction is consistent with the length direction of the water outlet pipe fitting. One end of the adjusting screw is connected to the servo motor fixedly connected to the inner wall of the support cylinder, and the other end of the adjusting screw is rotatably connected to the inner wall of the support cylinder. One end of the screw sleeve is fitted on the outside of the adjusting screw and threadedly connected to the adjusting screw, and the other end of the screw sleeve is fixedly fitted on the outer circumference of the water outlet pipe fitting.

7. The retractable multi-directional covering dust suppression spray device for fully mechanized mining faces as described in claim 6, characterized in that: The outer wall of the lead screw sleeve is provided with a ball groove and a ball is embedded therein. One side of the ball extends out of the ball groove and contacts the inner wall of the support cylinder, so as to reduce the friction when the lead screw sleeve is adjusted in height and improve the stability of the lifting action.

8. The retractable multi-directional dust suppression spray device for fully mechanized mining faces as described in claim 1, characterized in that: The water collection tank is equipped with a filter assembly for filtering the water flow; the filter assembly includes a filter bag, a filter plate, and a fine filter screen. The filter bag, filter plate, and fine filter screen are all arranged in the water collection tank from top to bottom, and the pore size of the filter bag, filter plate, and fine filter screen decreases in that order. The edges of the filter bag, filter plate, and fine filter screen are snapped together with the inner wall of the water collection tank.

9. The retractable multi-directional dust suppression spray device for fully mechanized mining faces as described in claim 6, characterized in that: A PLC controller is fixedly connected to the side wall of the water collection tank. The input terminal of the PLC controller is connected to the sensor module fixedly connected to the outer wall of the support cylinder and receives the monitoring data from the sensor module. The output terminal of the PLC controller is connected to the water pump, the angle adjustment component, the telescopic spray component, and the height adjustment component and controls their working status.

10. The retractable multi-directional covering dust suppression spray device for fully mechanized mining faces as described in claim 9, characterized in that: The sensor module integrates a dust concentration sensor for monitoring dust concentration, an infrared sensor for distance detection, and a position sensor for positioning. The dust concentration sensor, infrared sensor, and position sensor are all connected to the input terminals of the PLC controller.

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