Efficient atomizing and spraying device for dust suppression of underground coal mine

Abstract

The utility model discloses an efficient atomizing and spraying device for dust suppression in an underground coal mine, which comprises a water supply pipeline fixedly arranged on the top wall of an underground coal mine roadway, an efficient atomizing and spraying device body is arranged at the bottom of the water supply pipeline, the efficient atomizing and spraying device body comprises a round box body, and the bottom of the round box body is provided with an opening. According to the utility model, a series of structures are arranged, so that the two atomizing nozzles are integrally driven to perform circumferential rotary spraying and relative swinging spraying during atomizing, water spraying and dust falling, and the circumferential side large-range uniform spraying and dust falling work is realized through the matching mode of the circumferential rotary spraying and the reciprocating relative swinging spraying of the two atomizing nozzles; the dust falling area of a single position is increased, the number of the devices arranged on a water supply pipeline is reduced, the situation that water is difficult to supply enough pressure to conduct atomization spraying work due to the fact that the using amount of the atomization nozzles is too large is avoided, the phenomenon that water is seriously accumulated due to the fact that a certain position is seriously scoured due to too concentrated water mist is avoided, and the using effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of dust suppression technology in mines, specifically a high-efficiency atomizing spray device for suppressing dust in underground coal mines. Background Technology

[0002] The same applies to coal mine production operations. Due to the confined space and poor ventilation in underground coal mining, coal mine dust is inevitably generated during the production process, which seriously pollutes the underground environment and poses a certain threat to the working environment. In particular, coal mining machines generate a large amount of dust during the coal mining process. At present, underground dust removal is mainly carried out by spray dust suppression. This is achieved by fixing a conveying pipeline at the top of the coal mine roadway and installing multiple atomizing nozzles at the bottom of the conveying pipeline to carry out spray dust suppression.

[0003] The existing high-efficiency atomizing spray devices for dust suppression in underground coal mines have the following shortcomings when in use;

[0004] (The atomizing nozzle is fixed. Although it can atomize and spray water, the water mist is concentrated at the bottom of the nozzle and cannot be spread to the surrounding area. This requires a significant increase in the number of nozzles. However, if the number is increased too much, it will be difficult to supply enough water pressure for atomization.) In summary, a single atomizing nozzle is not enough to spray dust over a wide area, the dust reduction area is not ideal, and the excessive concentration of water mist also causes severe erosion in certain areas, resulting in serious water accumulation. In view of this, this application proposes a high-efficiency atomizing spray device for dust suppression in coal mines to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency atomizing spray device for suppressing dust in underground coal mines, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency atomizing spray device for dust suppression in underground coal mines, comprising a water supply pipe fixedly installed on the roof of an underground coal mine roadway, wherein a high-efficiency atomizing spray device body is installed at the bottom of the water supply pipe, and the high-efficiency atomizing spray device body comprises:

[0007] The box-shaped body has an opening at the bottom.

[0008] A water pump, whose inlet is connected and fixed to the bottom of the water supply pipe, and whose outlet extends into the cylindrical box.

[0009] A circular box body, with an open and sealed top, is rotatably fitted inside a circular housing. Two inclined and symmetrically arranged connecting rods are hinged to the bottom of the circular box body. Atomizing nozzles are fixedly connected to the bottom ends of the connecting rods. A flexible hose is fixedly connected between the outer side of the atomizing nozzles and the outer side of the circular box body. A water pump is provided to draw water supplied from the water supply pipe and flush it into the circular housing and the circular housing body. The two flexible hoses are provided to divert water supply to the two atomizing nozzles for atomization and dust suppression.

[0010] The hydraulic vortex drive assembly is fixedly connected to the bottom inner wall of the circular box and rotatably connected to the top inner wall of the circular box, and cooperates with the outlet of the water pump. The hydraulic vortex drive assembly is used to drive the circular box to rotate by the force of the water pump flushing and draining water. The circular box drives the two atomizing nozzles to rotate circumferentially through two connecting rods to perform rotating spraying.

[0011] The lever-type reciprocating drive assembly is fixedly connected between the bottom of the circular box and the inner wall of the top of the circular box, and is hinged to two connecting rods; the lever-type reciprocating drive assembly is used to drive two atomizing nozzles to reciprocate and oscillate relative to each other to spray when the circular box rotates.

[0012] Preferably, the hydraulic vortex drive assembly includes a rotary pipe that is sealed and rotatably mounted on the inner wall of the top of the cylindrical box. The bottom end of the rotary pipe is fixedly connected to the inner wall of the bottom of the cylindrical box. Multiple water turbine blades are fixedly connected in a ring at equal intervals on the outer side of the rotary pipe. The water turbine blades located on the front side are horizontally aligned with the outlet of the water pump.

[0013] Preferably, the lever-driven reciprocating drive assembly includes a telescopic dustproof sleeve fixedly connected to the bottom of the circular box body. A lifting plate is fixedly connected to the bottom of the telescopic dustproof sleeve. Two T-shaped guide rods, both located inside the telescopic dustproof sleeve, are fixedly connected to the bottom of the circular box body. The lifting plate is slidably mounted on the two T-shaped guide rods. A vertical branch pipe located inside the rotating tube is fixedly connected to the top inner wall of the circular box body. A reciprocating threaded sleeve is fixedly mounted inside the vertical branch pipe. A reciprocating screw is threaded inside the reciprocating threaded sleeve. The bottom end of the reciprocating screw is fixedly connected to the top of the lifting plate. Two inclined and symmetrically arranged connecting rods are hinged to the bottom of the lifting plate. The sides of the two connecting rods that are close to each other are respectively hinged to the bottom ends of the corresponding connecting rods.

[0014] Preferably, a first sealed bearing is fixedly sleeved inside the circular box, and the inner ring of the first sealed bearing is fixedly sleeved with the outer side of the circular box.

[0015] Preferably, a second sealed bearing is fixedly connected to the inner wall of the top of the cylindrical body, and the inner ring of the second sealed bearing is fixedly fitted to the outer side of the rotating tube.

[0016] Preferably, the top of the lifting plate has two vertical guide holes that slide and fit with the outer side of the corresponding T-shaped guide rod.

[0017] Preferably, the bottom of the circular box body is provided with a movable through hole, the vertical branch pipe is located inside the movable through hole and does not contact the inner wall of the movable through hole, and the movable through hole is located inside the rotating pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By cooperating with the set water supply pipe, water pump, round box, round housing, hose, connecting rod, atomizing nozzle and hydraulic swirl drive assembly, it can drive two atomizing nozzles to rotate and spray in the circumference during atomized water spraying to reduce dust, thereby increasing the dust suppression area while avoiding the phenomenon of always spraying one position severely, resulting in poor dust suppression on the side.

[0020] 2. By combining the set circular box, circular housing, connecting rod, atomizing nozzle and lever-type reciprocating drive component, it can automatically drive two atomizing nozzles to swing back and forth in opposite directions during rotating spraying, further increasing the dust suppression area of ​​the spray;

[0021] 3. By combining the circumferential rotation and reciprocating relative oscillating spray of two atomizing nozzles, uniform spraying is achieved over a large area to suppress dust, increasing the dust suppression area at individual locations. This reduces the number of devices required on the water supply pipeline and avoids insufficient water pressure for atomization due to excessive atomizing nozzle usage. It also prevents severe water accumulation caused by excessive concentration of water mist in certain areas. Furthermore, it avoids the inability to effectively spray dust on both sides when underground coal mine roadways are wide, thus improving the overall effectiveness.

[0022] This invention incorporates a series of structures that facilitate the integrated driving of two atomizing nozzles for circumferential rotation and relative oscillation spraying during atomized water spraying for dust suppression. The combined circumferential rotation and reciprocating relative oscillation of the two nozzles achieves uniform dust suppression over a large surrounding area, increasing the dust suppression area at individual locations. This reduces the number of devices required on the water supply pipeline, avoids insufficient water pressure for atomization due to excessive nozzle usage, and prevents excessive concentration of water mist that could cause severe erosion and water accumulation in certain areas, thus improving the overall effectiveness. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a high-efficiency atomizing spray device for suppressing dust in underground coal mines, as proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the main cross-sectional view of a high-efficiency atomizing spray device for suppressing dust in underground coal mines, as proposed in this utility model.

[0025] Figure 3 for Figure 2A magnified structural diagram of part A in the diagram.

[0026] In the diagram: 100, water supply pipe; 1, round box; 101, water pump; 2, round box; 201, connecting rod; 202, atomizing nozzle; 203, hose; 3, rotating pipe; 301, water impeller; 4, vertical branch pipe; 401, reciprocating threaded sleeve; 402, reciprocating screw; 403, lifting plate; 404, connecting rod; 405, T-shaped guide rod; 406, telescopic dustproof sleeve. Detailed Implementation

[0027] 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, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 3 As shown in this embodiment, a high-efficiency atomizing spray device for dust suppression in underground coal mines includes a water supply pipe 100 fixedly installed on the roof of an underground coal mine roadway. The high-efficiency atomizing spray device body is installed at the bottom of the water supply pipe 100. The high-efficiency atomizing spray device body includes:

[0029] The round box 1 has an opening at the bottom and is fixed to the water supply pipe 100.

[0030] The water pump 101 has its inlet connected and fixed to the bottom of the water supply pipe 100, and its outlet extends into the circular box 1. The water pump 101 is installed and fixed on the circular box 1.

[0031] As for the power supply of water pump 101, since power cables are laid in the underground roadways of the coal mine to power basic lighting facilities and other equipment, the power line of water pump 101 can be directly connected to the power cables for power supply, without the need for additional energy storage measures.

[0032] The circular box 2 has an open and sealed top that is rotatably fitted inside the circular box 1. A first sealing bearing is fixedly fitted inside the circular box 1. The inner ring of the first sealing bearing is fixedly fitted to the outer side of the circular box 2, which achieves the effect of sealing and rotating the circular box 2. Two inclined and symmetrically arranged connecting rods 201 are hinged to the bottom of the circular box 2. The bottom end of the connecting rods 201 is fixedly connected to an atomizing nozzle 202. A flexible hose 203 is fixedly connected between the outer side of the atomizing nozzle 202 and the outer side of the circular box 2. A water pump 101 is provided to draw water supplied from the water supply pipe 100 and flush it into the circular box 1 and the circular box 2. The two flexible hoses 203 are provided to supply water to the two atomizing nozzles 202 for atomization and dust suppression.

[0033] The hydraulic vortex drive assembly is fixedly connected to the bottom inner wall of the circular box 2 and rotatably connected to the top inner wall of the circular box 1, and cooperates with the outlet of the water pump 101. The hydraulic vortex drive assembly is used to drive the circular box 2 to rotate by the force of the water pump 101 flushing water. The circular box 2 drives the two atomizing nozzles 202 to rotate circumferentially through the two connecting rods 201 to perform rotating spraying.

[0034] The lever-type reciprocating drive assembly is fixedly connected between the bottom of the circular box 2 and the inner wall of the top of the circular box 1, and is hinged to the two connecting rods 201; the lever-type reciprocating drive assembly is used to drive the two atomizing nozzles 202 to reciprocate and oscillate relative to each other to spray when the circular box 2 rotates through the two connecting rods 201.

[0035] Specifically, the hydraulic vortex drive assembly includes a rotary pipe 3 that is rotatably and sealed on the inner wall of the top of the cylindrical box 1. A second sealed bearing is fixedly connected to the inner wall of the top of the cylindrical box 1. The inner ring of the second sealed bearing is fixedly fitted to the outer side of the rotary pipe 3, which achieves the effect of sealing and rotating the rotary pipe 3. The bottom end of the rotary pipe 3 is fixedly connected to the inner wall of the bottom of the cylindrical box 2. Multiple water turbine blades 301 are fixedly connected to the outer side of the rotary pipe 3 in an annular shape at equal intervals. The water turbine blades 301 located on the front side are horizontally aligned with the outlet of the water pump 101.

[0036] The rotating pipe 3 and the water impeller 301 are designed to work together. When the water pump 101 pumps water into the cylindrical box 1, the water impacts the water impeller 301 on the front side. Under the impact force, the water impeller 301 on the front side rotates and drives the rotating pipe 3 to rotate. Under the action of the rotating pipe 3, multiple water impellers 301 rotate in sequence to the front side and continue to be impacted and rotated. The rotating pipe 3 drives the cylindrical box 2 to rotate. The cylindrical box 2 drives two atomizing nozzles 202 to rotate circumferentially through two connecting rods 201 to perform rotating spraying. By using circumferential rotating spraying, the dust suppression area is increased while avoiding the phenomenon of severe dust suppression on the side caused by spraying only one position.

[0037] Furthermore, the lever-driven reciprocating drive assembly includes a telescopic dustproof sleeve 406 fixedly connected to the bottom of the circular box 2. A lifting plate 403 is fixedly connected to the bottom of the telescopic dustproof sleeve 406. Two T-shaped guide rods 405, both located within the telescopic dustproof sleeve 406, are fixedly connected to the bottom of the circular box 2. The lifting plate 403 is slidably fitted onto the two T-shaped guide rods 405. The top of the lifting plate 403 has two vertical guide holes that slide and fit onto the outer sides of the corresponding T-shaped guide rods 405, thus guiding the vertical sliding of the lifting plate 403. A rotating... The vertical branch pipe 4 inside the pipe 3 has a movable through hole at the bottom of the round box 2. The vertical branch pipe 4 is located inside the movable through hole and does not contact the inner wall of the movable through hole. The movable through hole is located inside the rotating pipe 3, which allows the vertical branch pipe 4 to move through. A reciprocating threaded sleeve 401 is fixedly sleeved inside the vertical branch pipe 4. A reciprocating screw 402 is threaded inside the reciprocating threaded sleeve 401. The bottom end of the reciprocating screw 402 is fixedly connected to the top of the lifting plate 403. Two inclined and symmetrically arranged connecting rods 404 are hinged to the bottom of the lifting plate 403. The side of the two connecting rods 201 that are close to each other is hinged to the bottom end of the corresponding connecting rod 404.

[0038] The telescopic dustproof sleeve 406, lifting plate 403, T-shaped guide rod 405, vertical branch pipe 4, reciprocating threaded sleeve 401, reciprocating screw 402, and connecting rod 404 are configured to work together. The rotation of the circular box 2 drives the two T-shaped guide rods 405 to rotate as a whole. The two T-shaped guide rods 405 drive the lifting plate 403 to rotate. The lifting plate 403 drives the two connecting rods 404 to rotate as a whole, following the two connecting rods 201. Simultaneously, the lifting plate 403 drives the reciprocating screw 402 to rotate, creating a relative motion between the reciprocating screw 402 and the reciprocating threaded sleeve 401. The reciprocating screw 402 rotates within the reciprocating threaded sleeve 401 and moves back and forth. At this time, the reciprocating screw 402 drives the lifting plate 406 to rotate. 3. The device moves up and down repeatedly, stretching or pressing the telescopic dust-proof rubber sleeve 406. The lifting plate 403 drives the two connecting rods 404 to rotate up and down repeatedly. The two connecting rods 404 drive the two connecting rods 201 to swing back and forth, repelling each other and approaching each other. The two connecting rods 201 drive the two atomizing nozzles 202 to swing back and forth, repelling each other and approaching each other. This achieves the effect of automatically driving the two atomizing nozzles 202 to swing back and forth in a relatively reciprocating manner during circumferential rotation. By using the relative reciprocating swing spray, the dust suppression area is further increased. By increasing the spray area, the amount of atomizing nozzles 202 used is reduced, and the water pressure is reduced due to the excessive amount of atomizing nozzles 202 used.

[0039] The usage method of this embodiment is as follows: When using the high-efficiency atomizing spray device for dust suppression in coal mines, turn on the water pump 101 to draw water supplied from the water supply pipe 100 and flush it into the round box 1 and round box 2. The water is then diverted through the two hoses 203 to the two atomizing nozzles 202 for atomization and dust suppression.

[0040] When the water pump 101 pumps water into the cylindrical box 1, the water impacts the water impeller 301 on the front side. Under the impact force, the water impeller 301 on the front side rotates and drives the rotating pipe 3 to rotate. Under the action of the rotating pipe 3, multiple water impellers 301 rotate in sequence to the front side and continue to be impacted and rotated. The rotating pipe 3 drives the cylindrical box 2 to rotate. The cylindrical box 2 drives two atomizing nozzles 202 to rotate circumferentially through two connecting rods 201 to perform rotating spraying. By using circumferential rotating spraying, the dust suppression area is increased while avoiding the phenomenon of poor dust suppression on the side caused by always spraying a single position.

[0041] When the circular box 2 rotates, it also drives the two T-shaped guide rods 405 to rotate as a whole. The two T-shaped guide rods 405 drive the lifting plate 403 to rotate. The lifting plate 403 drives the two connecting rods 404 to rotate as a whole with the two connecting rods 201. At the same time, the lifting plate 403 drives the reciprocating screw 402 to rotate, so that the reciprocating screw 402 and the reciprocating sleeve 401 form a relative motion state. The reciprocating screw 402 rotates and moves back and forth up and down within the reciprocating sleeve 401. At this time, the reciprocating screw 402 drives the lifting plate 403 to slide back and forth up and down on the two T-shaped guide rods 405, and stretches or presses back the telescopic dustproof rubber sleeve 406. The lifting plate 403 drives the two connecting rods 404 to rotate back and forth up and down. The two connecting rods 404 drive the two connecting rods 201 to swing back and forth, repelling and approaching each other. Two connecting rods 201 drive two atomizing nozzles 202 to reciprocate and repel or move closer together, achieving the effect of automatic driving of the two atomizing nozzles 202 to reciprocate and spray in a reciprocating manner when rotating around the circumference. Through the combination of circumferential rotation spraying and reciprocating relative swing spraying of the two atomizing nozzles 202, a large-area uniform spraying dust suppression work is achieved, increasing the dust suppression area of ​​a single location, thereby reducing the number of devices to be installed on the water supply pipe 100. This avoids the problem of insufficient water pressure for atomization spraying due to excessive atomizing nozzles 202, and also avoids the phenomenon of severe scouring and water accumulation in a certain location due to excessive water mist concentration. In coal mine underground roadways with wide tunnels, it also avoids the phenomenon of ineffective dust suppression spraying on both sides, thus improving the usage effect.

[0042] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground, comprising a water supply pipeline (100) fixedly installed on a roadway top wall in a coal mine underground, a bottom of the water supply pipeline (100) being provided with a high-efficiency atomizing and spraying device body, characterized in that: The high-efficiency atomizing spray device body comprises: A circular box body (1) with an open bottom; A water pump (101) with an inlet communicating with the bottom of the water supply pipeline (100) and an outlet extending into the circular box body (1); A circular box (2) with an open top and being sealingly sleeved in the circular box body (1), the bottom of the circular box (2) being hingedly connected with two inclined and symmetrically arranged connecting rods (201), the bottom end of each connecting rod (201) being fixedly connected with an atomizing nozzle (202), and a hose (203) being fixedly connected between the outer side of the atomizing nozzle (202) and the outer side of the circular box (2); A hydraulic rotary drive assembly fixedly connected to the inner wall of the bottom of the circular box (2) and rotatably connected to the inner wall of the top of the circular box body (1) and cooperating with the water outlet of the water pump (101); A leverage reciprocating drive assembly fixedly connected between the inner wall of the top of the circular box body (1) and the bottom of the circular box (2) and being hingedly connected with the two connecting rods (201).

2. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground according to claim 1, characterized in that: The hydraulic rotary drive assembly comprises a rotating pipe (3) sealingly and rotatably mounted on the inner wall of the top of the circular box body (1), the bottom end of the rotating pipe (3) being fixedly connected with the inner wall of the bottom of the circular box (2), and the outer side of the rotating pipe (3) being annularly and equidistantly fixedly connected with a plurality of water turbine blades (301), the water turbine blades (301) located on the front side being horizontally aligned with the water outlet of the water pump (101).

3. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground according to claim 2, characterized in that: The leverage reciprocating drive assembly comprises an elastic dustproof sleeve (406) fixedly connected to the bottom of the circular box (2), the bottom of the elastic dustproof sleeve (406) being fixedly connected with a lifting plate (403), the bottom of the circular box (2) being fixedly connected with two T-shaped guide rods (405) located in the elastic dustproof sleeve (406), the lifting plate (403) being slidingly sleeved on the two T-shaped guide rods (405), the inner wall of the top of the circular box body (1) being fixedly connected with a vertical branch pipe (4) located in the rotating pipe (3), the vertical branch pipe (4) being fixedly sleeved with a reciprocating wire sleeve (401), the reciprocating wire sleeve (401) being threadedly sleeved with a reciprocating wire shaft (402), the bottom end of the reciprocating wire shaft (402) being fixedly connected with the top of the lifting plate (403), and the bottom of the lifting plate (403) being hingedly connected with two inclined and symmetrically arranged connecting rods (404), the side close to each connecting rod (201) being hingedly connected with the bottom end of the corresponding connecting rod (404).

4. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground according to claim 1, characterized in that: The circular box body (1) is fixedly sleeved with a first sealing bearing, and the inner ring of the first sealing bearing is fixedly sleeved with the outer side of the circular box (2).

5. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground according to claim 2, characterized in that: The inner wall of the top of the circular box body (1) is fixedly connected with a second sealing bearing, and the inner ring of the second sealing bearing is fixedly sleeved with the outer side of the rotating pipe (3).

6. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground as claimed in claim 3, characterized in that: The top of the lifting plate (403) is provided with two vertical guide holes slidingly sleeved with the outer sides of the corresponding T-shaped guide rods (405).

7. The high-efficiency atomizing and spraying device for suppressing dust in a coal mine underground as claimed in claim 3, characterized in that: The bottom of the circular box (2) is provided with a movable perforation, the vertical branch pipe (4) is located in the movable perforation and does not contact the inner wall of the movable perforation, and the movable perforation is located on the inner side of the rotating pipe (3).

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