Water-air mixed spray device for mine equipment

Abstract

The present application relates to the field of mine dust removal, more specifically, it relates to a water-air mixed spraying device for mine equipment, comprising a spraying mechanism, which comprises a box, the inner cavity of the box is annularly distributed with at least three fixing frames, one end of the fixing frame is provided with a two-fluid air atomizing nozzle, the side of the fixing frame away from the two-fluid air atomizing nozzle is provided with a pushing assembly for pushing the fixing frame out of the box, and a pressing assembly for reciprocating swing spraying of the pushed fixing frame is arranged on the pushing assembly, a spraying auxiliary mechanism is arranged above the fixing frame, the present application can drive the fixing frame to make reciprocating pitching swing through the pressing assembly, and the squeezing assembly is synchronously linked to adaptively adjust the spraying flow according to the swing posture, so as to adapt to the distribution rule of mine dust.

Description

Technical Field

[0001] This invention relates to the field of dust removal in mines, and more specifically, to a water-air mixed spray device for mining equipment. Background Technology

[0002] Mining operations, including excavation, transportation, and crushing, generate large amounts of high-concentration dust, which not only worsens the working environment but also poses safety hazards and occupational health risks. Water-air mixed spray dust suppression is a mainstream technology for dust control in mines due to its fine droplets and high settling efficiency; however, existing spray systems still have many shortcomings in practical applications.

[0003] First, existing spray devices mostly have fixed spray angles or simple reciprocating oscillation structures, with a constant spray flow rate throughout. This cannot adapt to the spatial distribution pattern of dust in mines, where dust is concentrated at the bottom and sparse at the top. The lower working face is the core dust-generating area, with high dust concentration and large particle size, requiring a high-flow-rate, high-density fog screen for rapid capture and suppression. The upper space has low dust concentration and small particle size. Under constant flow mode, if the dust suppression needs of the lower area are met, the upper spray volume will be excessive, easily causing water mist to diffuse and obstruct the operator's vision. At the same time, a large amount of water mist will be ineffectively dispersed, wasting water and air resources. If the overall flow rate is controlled, the lower fog screen coverage will be insufficient, making it difficult to meet the dust suppression efficiency. It is impossible to balance dust suppression effect and resource utilization. Second, the nozzles of existing spray devices are mostly exposed on the outside of the equipment for a long time. The working conditions at the mine site are harsh, and the phenomenon of flying debris is frequent, which can easily cause the nozzles to be damaged by impact and scratches, significantly shortening the nozzle life and increasing operation and maintenance costs and downtime maintenance time. Improvement is urgently needed. To solve the above problems, a water and air mixed spray device for mining equipment is proposed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, the present invention provides a water-air mixing spray device for mining equipment to solve the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a water-air mixing spray device for mining equipment, comprising a spray mechanism, which includes a housing. At least three fixed frames are arranged in a ring within the inner cavity of the housing. One end of each fixed frame is provided with a two-fluid air atomizing nozzle. A pushing assembly for pushing the fixed frame out of the housing is provided on the side of the fixed frame away from the two-fluid air atomizing nozzle. A pressing assembly is provided on the pushing assembly for reciprocating oscillation spraying of the pushed fixed frame. A spraying auxiliary mechanism is provided above the fixed frame. The spraying auxiliary mechanism includes a squeezing assembly provided on the fixed frame for controlling the spray volume at different positions.

[0008] The invention is further configured such that the spraying mechanism includes a driving assembly, the driving assembly including an explosion-proof cylinder installed on the top of the inner cavity of the box, a connecting frame installed on the driving end of the explosion-proof cylinder, a sleeve fixedly installed on one side of the connecting frame, a limit post provided in the inner cavity of the sleeve, the upper end of the limit post being fixedly connected to the top of the inner cavity of the box, and a plurality of diagonal braces fixedly installed on the outer side of the sleeve.

[0009] The present invention is further configured such that the air inlet end of the two-fluid air atomizing nozzle is connected to an air inlet hose, the liquid inlet end of the two-fluid air atomizing nozzle is connected to a liquid inlet hose, a water supply pipe and an air supply pipe are respectively provided through the lower end of the inner cavity of the housing, the air inlet ends of the plurality of air inlet hoses are respectively connected to the air outlet interface on the side wall of the air supply pipe, and the liquid inlet ends of the plurality of liquid inlet hoses are respectively connected to the liquid outlet interface on the side wall of the water supply pipe.

[0010] The invention is further configured such that the pushing assembly includes a support plate installed in the inner cavity of the box, the upper surface of the support plate is provided with a plurality of pushing blocks, the upper part of the pushing blocks is provided with an inclined surface, the extended end of the inclined surface is provided with a vertical surface, a groove of the same depth is formed in the middle of the inclined surface and the vertical surface, a slot is formed on the side of the pushing block away from the vertical surface, a limit rod is provided in the inner cavity of the slot, the end of the limit rod away from the slot is fixedly connected to the inner wall of the box, and connecting rods are welded on both the front and rear sides of the pushing block, the upper end of the connecting rod is rotatably connected to the outer side of the fixing frame through a rotating shaft.

[0011] The present invention is further configured such that the size of the limiting rod is adapted to the size of the slot, and the limiting rod is movably inserted into the slot. A return spring is sleeved on the outer side of the limiting rod. One end of the return spring is fixedly connected to the inner wall of the housing, and the other end of the return spring is fixedly connected to the push block. The end of the diagonal brace near the groove is configured as a smooth arc surface, and the diagonal brace is movably inserted into the groove.

[0012] The present invention is further configured such that the pressing component includes a counterweight embedded in the side of the fixed frame near the two-fluid air atomizing nozzle, the counterweight is configured as two, and the two counterweights are symmetrically arranged, a lower pressing frame is welded to the middle of the outer side of the diagonal brace, the lower pressing frame is sleeved on the outer side of the fixed frame, and the lower pressing frame is arranged on the side of the fixed frame away from the counterweight.

[0013] The invention is further configured such that the extrusion assembly includes a fixing rod disposed above the fixing frame, a slanted pressure plate is fixedly installed at the lower end of the fixing rod, a plurality of square slots are opened at the upper end of the housing, pipe clamps are installed on both sides of the upper end of the fixing frame, the pipe clamps are connected to the corresponding air inlet hose and liquid inlet hose, a rubber sleeve is disposed on the outer side of the fixing frame near the slanted pressure plate, the rubber sleeve is disposed on the outer side of the air inlet hose and liquid inlet hose, and the rubber sleeve is disposed below the slanted pressure plate.

[0014] The invention is further configured such that at least three square grooves are provided, the size of the fixing rod is adapted to the size of the square groove, and the fixing rod is movably inserted into the square groove, and the width of the rubber sleeve is greater than the width of the inclined pressure plate.

[0015] The invention is further configured such that the spray auxiliary mechanism includes an adjustment component, the adjustment component includes an arc-shaped frame installed above the fixed rod, a lead screw sleeve is fixedly installed in the middle of the arc-shaped frame, a lead screw is provided above the housing, the size of the lead screw is adapted to the size of the lead screw sleeve, and the lead screw and the lead screw sleeve are threadedly connected, and a baffle is fixedly installed on the side of the housing near the two-fluid air atomizing nozzle, and a scale line is provided on the inner side of the baffle.

[0016] The invention is further configured such that a corresponding through groove is provided on the side of the housing near the two-fluid air atomizing nozzle, the size of the through groove is larger than the size of the two-fluid air atomizing nozzle, and inclined grooves are provided at both the upper and lower ends of the inner wall of the through groove. A tool storage compartment is provided on the side of the housing away from the through groove, and a door is installed on one side of the tool storage compartment by means of a hinge.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides a water-air mixing spray device for mining equipment, which has the following beneficial effects:

[0019] This invention can drive the fixed frame through a pressing component to make the two-fluid air atomizing nozzle reciprocate in a pitching motion, and simultaneously link the extrusion component to adaptively adjust the spray flow rate according to the swing posture, thereby achieving the effect of adapting to the dust distribution pattern in the mine: when swinging downward, the gas-liquid passage is fully open, and the high-flow spray forms a high-density fog curtain, which quickly captures the high concentration of dust raised on the settling surface and inhibits its diffusion; when swinging upward, the passage is compressed and the spray volume is reduced, which not only meets the needs of upper floating dust settling, but also reduces the ineffective loss of water mist, saves water and air resources, and avoids the upper water mist from obstructing the operator's vision, ensuring on-site visibility, and achieving a double improvement in dust reduction efficiency and resource utilization.

[0020] Furthermore, the wedge-shaped inclined surface of the push assembly, in conjunction with the return spring, enables the nozzle to automatically extend during operation and automatically retract into the housing for storage when the machine stops, thus protecting the nozzle and extending its service life. This effectively avoids nozzle clogging and impact damage caused by dust or gravel scraping on site. Attached Figure Description

[0021] Figure 1 This is a first-person view structural diagram of a water-air mixing spray device for mining equipment.

[0022] Figure 2 This is a schematic diagram of the overall second-view structure of a water-air mixing spray device for mining equipment.

[0023] Figure 3 This is a schematic diagram of the internal structure of a water-air mixing spray device for mining equipment.

[0024] Figure 4 This is a schematic diagram of the spray mechanism and spray auxiliary mechanism of a water-air mixed spray device for mining equipment.

[0025] Figure 5 This is a schematic diagram of the jacking and pressing components of a water-air mixing spray device for mining equipment.

[0026] Figure 6 This is a schematic diagram of the drive component structure of a water-air mixing spray device for mining equipment.

[0027] Figure 7 This is a schematic diagram of the drive assembly and jacking assembly of a water-air mixed spray device for mining equipment.

[0028] Figure 8 Exploded view of the jacking block and limit rod of a water-air mixed spray device for mining equipment.

[0029] Figure 9 A schematic diagram of the pressing and extrusion components of a water-air mixing spray device for mining equipment.

[0030] Figure 10 A schematic diagram of the regulating component structure of a water-air mixing spray device for mining equipment.

[0031] Figure 11 A schematic diagram of the internal structure of the mounting frame for a water-air mixing spray device for mining equipment.

[0032] Figure 12 This is a schematic diagram of the housing structure of a water-air mixing spray device for mining equipment.

[0033] In the diagram: 100, Spraying mechanism; 101, Housing; 102, Door; 103, Explosion-proof cylinder; 104, Connecting frame; 105, Sleeve; 106, Limiting post; 107, Diagonal brace; 107a, Smooth arc surface; 108, Lower pressure frame; 109, Push block; 109a, Inclined surface; 109b, Vertical surface; 110, Connecting rod; 111, Groove; 112, Limiting rod; 113, Slot; 114, Return spring; 115, Support plate; 116, Rotating shaft; 117. Fixed frame; 117a, counterweight; 118, two-fluid air atomizing nozzle; 119, through groove; 119a, inclined groove; 120, air inlet hose; 121, liquid inlet hose; 122, water supply pipe; 123, air supply pipe; 124, tool storage compartment; 200, spray auxiliary mechanism; 201, fixed rod; 202, inclined pressure plate; 203, pipe clamp; 204, rubber sleeve; 205, arc frame; 206, lead screw sleeve; 207, lead screw; 208, enclosure; 209, square groove. Detailed Implementation

[0034] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0036] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0037] For examples, please refer to Figures 1 to 12 A water-air mixing spray device for mining equipment includes a spray mechanism 100, which includes a housing 101. At least three fixed frames 117 are arranged in a ring inside the housing 101. One end of each fixed frame 117 is provided with a two-fluid air atomizing nozzle 118. On the side of the fixed frame 117 away from the two-fluid air atomizing nozzle 118, a pushing assembly for pushing the fixed frame 117 out of the housing 101 is provided, and a pressing assembly is provided on the pushing assembly for reciprocating oscillating spraying of the pushed fixed frame 117. A spray auxiliary mechanism 200 is provided above the fixed frame 117. The spray auxiliary mechanism 200 includes a squeezing assembly provided on the fixed frame 117 for controlling the spray volume at different positions.

[0038] This application completes the entire process through mechanical transmission in conjunction with a pushing assembly, a pressing assembly, and a squeezing assembly of the spray auxiliary mechanism 200. The drive assembly outputs vertically downward power to the pushing assembly, converting the vertical power into horizontal thrust, pushing the fixed frame 117 along with the two-fluid air atomizing nozzle 118 to move horizontally out of the housing 101 and enter the working state. When stopping, the return spring 114 in the pushing assembly drives the fixed frame 117 and nozzle to retract into the through groove 119 on the housing 101 for storage and protection. After the nozzle is fully extended, the drive assembly maintains the corresponding stroke range and performs up-and-down reciprocating motion. The power is directly applied to the pressing assembly, driving the fixed frame 117 to swing up and down around the hinge axis, causing the two-fluid air atomizing nozzle 118 to swing synchronously up and down, thereby expanding the vertical spray coverage area. At the same time, the pitching motion of the fixed frame 117 will be linked to the squeezing assembly, and the fixed frame 117 swings upward. The compression component compresses the gas-liquid passage and reduces the diameter to decrease the spray volume. Since the floating dust raised in mining operations is mostly concentrated in the lower part of the space, and the dust concentration in the upper area is relatively low, appropriately reducing the upward spray volume can not only meet the settling requirements of the floating dust in the upper part, but also reduce the ineffective dispersion loss of water mist and save water and air resources. At the same time, it can prevent excessive water mist in the upper part from obstructing the working vision and ensure the visibility of the on-site operation. When the fixed frame 117 swings downward, the compression component releases the compression, and the passage relies on its own elastic rebound to restore the diameter to ensure the spray volume. Since the dust-generating points and high-concentration dust raised in the mine are mainly concentrated in the lower working face area, ensuring a sufficient downward spray volume can form a high-density fog curtain to quickly capture and settle large dust particles, improve the overall dust reduction efficiency, and the downward sprayed droplets settle faster due to gravity, which can quickly cover the dust-generating area and timely suppress the spread of dust. Ultimately, the spray volume is adaptively and dynamically adjusted according to the swing posture.

[0039] In the example of this application, the spraying mechanism 100 further includes a drive assembly, which includes an explosion-proof cylinder 103 installed on the top of the inner cavity of the housing 101. A connecting frame 104 is installed on the drive end of the explosion-proof cylinder 103. A sleeve 105 is fixedly installed on one side of the connecting frame 104. A limit post 106 is provided in the inner cavity of the sleeve 105. The upper end of the limit post 106 is fixedly connected to the top of the inner cavity of the housing 101. A plurality of diagonal braces 107 are fixedly installed on the outer side of the sleeve 105.

[0040] As a preferred example of the present invention, the drive assembly uses an explosion-proof cylinder 103 as the core power actuator. When the explosion-proof cylinder 103 performs telescopic movement, it drives the connecting frame 104 to rise and fall synchronously. The connecting frame 104 further drives the sleeve 105 to move vertically along the limiting post 106. The limiting post 106 forms a radial constraint on the sleeve 105 to ensure the straightness of the movement of the sleeve 105 and avoid deviation and jamming during operation. Multiple diagonal bracing rods 107 distributed in a ring on the outer side of the sleeve 105 rise and fall synchronously with the sleeve 105, thereby synchronously transmitting the single-path power of the explosion-proof cylinder 103 to multiple sets of pushing and pressing components, realizing that one power source can simultaneously drive multiple sets of nozzle mechanisms to complete the pushing and swinging actions.

[0041] In the example of this application, the air inlet end of the two-fluid air atomizing nozzle 118 is connected to an air inlet hose 120, the liquid inlet end of the two-fluid air atomizing nozzle 118 is connected to a liquid inlet hose 121, a water supply pipe 122 and an air supply pipe 123 are respectively provided through the lower end of the inner cavity of the housing 101, the air inlet ends of the plurality of air inlet hoses 120 are respectively connected to the air outlet interface on the side wall of the air supply pipe 123, and the liquid inlet ends of the plurality of liquid inlet hoses 121 are respectively connected to the liquid outlet interface on the side wall of the water supply pipe 122.

[0042] As a preferred example of the present invention, the gas supply pipe 123 and water supply pipe 122 centrally arranged at the lower end of the housing 101 serve as the main transport channels for gas and liquid media, respectively. The air inlet end of the two-fluid air atomizing nozzle 118 is connected to the gas supply pipe 123 through the air inlet hose 120, and the liquid inlet end is connected to the water supply pipe 122 through the liquid inlet hose 121. The pressurized gas and pressurized liquid are respectively transported to the nozzle through the hoses, mixed and atomized and sprayed out. The air inlet hose 120 and the liquid inlet hose 121 adopt a flexible structure, which can adapt to bending deformation as the fixing frame 117 is pushed out horizontally and swings up and down. The entire process does not cause pulling or interference with the internal structure of the housing 101, ensuring a continuous and stable supply of gas and liquid media.

[0043] In the example of this application, the push assembly includes a support plate 115 installed in the inner cavity of the housing 101. The upper surface of the support plate 115 is provided with a plurality of push blocks 109. An inclined surface 109a is provided above the push block 109. The extended end of the inclined surface 109a is set as a vertical surface 109b. A groove 111 of the same depth is opened in the middle of the inclined surface 109a and the vertical surface 109b. A slot 113 is opened on the side of the push block 109 away from the vertical surface 109b. A limit rod 112 is provided in the inner cavity of the slot 113. The end of the limit rod 112 away from the slot 113 is fixedly connected to the inner wall of the housing 101. Connecting rods 110 are welded to both the front and rear sides of the push block 109. The upper end of the connecting rod 110 is rotatably connected to the outer side of the fixing frame 117 through a rotating shaft 116.

[0044] As a preferred example of the present invention, the diagonal brace 107 moves downward and embeds itself in the groove 111 of the push block 109. It first slides along the inclined surface 109a of the groove 111. The inclined surface 109a decomposes the vertically downward force and generates a horizontal component force, pushing the push block 109 to move horizontally. As the push block 109 moves, it drives the connecting rod 110 to move horizontally in sync. The connecting rod 110 drives the fixing frame 117 to translate outwards via the rotating shaft 116, allowing the two fluids to move horizontally. The atomizing nozzle 118 extends from the housing 101. When the diagonal brace 107 slides to the vertical surface 109b of the groove 111, the direction of the force is parallel to the vertical surface 109b, the horizontal component of the force disappears, the push block 109 stops moving horizontally, and the fixing frame 117 remains in the extended position to complete the switching of the working stage. The limiting rod 112 is inserted into the slot 113 of the push block 109 to form a guiding constraint on the horizontal movement of the push block 109 and prevent the push block 109 from deviating.

[0045] In the example of this application, the size of the limiting rod 112 is adapted to the size of the slot 113, and the limiting rod 112 is movably inserted into the slot 113. A return spring 114 is sleeved on the outer side of the limiting rod 112. One end of the return spring 114 is fixedly connected to the inner wall of the housing 101, and the other end of the return spring 114 is fixedly connected to the push block 109. The end of the diagonal brace 107 near the groove 111 is set as a smooth arc surface 107a, and the diagonal brace 107 is movably inserted into the groove 111.

[0046] As a preferred example of the present invention, the return spring 114 is sleeved on the outside of the limiting rod 112 and its two ends abut against the inner wall of the housing 101 and the push block 109, respectively. When the diagonal brace 107 pushes the push block 109 outward, the return spring 114 is compressed and stores elastic potential energy. When the diagonal brace 107 moves upward and the horizontal thrust on the push block 109 disappears, the return spring 114 releases its elastic force, pushing the push block 109 to move horizontally in the opposite direction along the limiting rod 112, thereby driving the fixing frame 117 and the two-fluid air atomizing nozzle 118 to automatically retract into the housing 101 to complete the reset and storage. The end of the diagonal brace 107 is set as a smooth arc surface 107a, which forms a line contact with the inner wall of the groove 111, which can greatly reduce the frictional resistance during the sliding process, reduce the wear of parts, and reduce the risk of jamming in the dusty working conditions of the mine.

[0047] In the example of this application, the pressing assembly includes a counterweight 117a embedded in the fixed frame 117 near the two-fluid air atomizing nozzle 118. There are two counterweights 117a, and the two counterweights 117a are symmetrically arranged. A lower pressing frame 108 is welded to the middle of the outer side of the diagonal brace 107. The lower pressing frame 108 is sleeved on the outer side of the fixed frame 117 and is located on the side of the fixed frame 117 away from the counterweights 117a.

[0048] As a preferred example of the present invention, the pressing component relies on the cooperation of the lower pressing frame 108 and the counterweight 117a to achieve swing drive. When the diagonal support rod 107 moves up and down in the interval corresponding to the vertical plane 109b of the push block 109, the lower pressing frame 108 fixed on the diagonal support rod 107 rises and falls synchronously with the diagonal support rod 107. When the lower pressing frame 108 moves downward, it presses on the non-nozzle end of the fixed frame 117, forming a downward torque on the fixed frame 117. This overcomes the gravitational torque of the counterweight 117a at the other end, driving the fixed frame 117 to rotate upward around the rotating shaft 116, causing the two-fluid air atomizing nozzle 118 to tilt upward and spray. When the lower pressing frame 108 moves upward, the downward torque disappears. Under the action of the symmetrical counterweights 117a on both sides and its own gravity, the fixed frame 117 rotates downward around the rotating shaft 116, causing the nozzle to tilt downward and spray, thereby realizing the reciprocating swing spray of the nozzle.

[0049] In the example of this application, the extrusion assembly includes a fixing rod 201 disposed above the fixing frame 117. A slanted pressure plate 202 is fixedly installed at the lower end of the fixing rod 201. A plurality of square slots 209 are opened at the upper end of the housing 101. Pipe clamps 203 are installed on both sides of the upper end of the fixing frame 117. The pipe clamps 203 are connected to the corresponding air inlet hose 120 and liquid inlet hose 121. A rubber sleeve 204 is disposed on the outer side of the fixing frame 117 near the slanted pressure plate 202. The rubber sleeve 204 is sleeved on the outer side of the air inlet hose 120 and the liquid inlet hose 121. The rubber sleeve 204 is disposed below the slanted pressure plate 202.

[0050] As a preferred example of the present invention, the extrusion assembly is passively triggered by the swing of the fixing frame 117 to achieve dynamic adjustment of the spray volume. The pipe clamp 203 fixes the air inlet hose 120 and the liquid inlet hose 121 to the fixing frame 117. A rubber sleeve 204 is sleeved on the outside of the hose. When the fixing frame 117 drives the nozzle to swing upward, the rubber sleeve 204 on the fixing frame 117 moves upward and contacts the bottom surface of the inclined pressure plate 202. The inclined pressure plate 202 exerts a squeezing effect on the rubber sleeve 204, causing the air inlet hose 120 and the liquid inlet hose 121 inside the rubber sleeve 204 to be simultaneously compressed and undergo radial deformation, reducing the flow cross-sectional area, decreasing the flow rate of the gas and liquid medium, and thus reducing the upward spray volume. Since the floating dust generated in mining operations is mostly concentrated in the lower part of the space, and the dust concentration in the upper part is even lower, appropriately reducing the upward spray volume can... It can meet the settling requirements of the upper floating dust, avoid excessive water mist dispersion and loss, reduce water and air resource waste, and prevent the upper water mist from excessively affecting the visibility of the working area. When the fixed frame 117 swings downward, the rubber sleeve 204 moves down with the fixed frame 117 and separates from the inclined pressure plate 202. The squeezing effect is released, and the air inlet hose 120 and liquid inlet hose 121 rely on their own elasticity to restore their original diameter. The air and liquid flow rate increases, ensuring a sufficient supply of downward spray. The dust generation points and high concentration of dust raised in the mining face are mainly concentrated in the lower area. Sufficient downward spray can form a high-density fog curtain, which can efficiently capture and settle large dust particles, improve the overall dust reduction efficiency, and the downward sprayed droplets settle faster due to gravity. The large flow of water mist can quickly cover the dust generation area and timely suppress the spread of dust.

[0051] In the example of this application, at least three square grooves 209 are provided, the size of the fixing rod 201 is adapted to the size of the square groove 209, and the fixing rod 201 is movably inserted into the square groove 209. The width of the rubber sleeve 204 is greater than the width of the inclined pressure plate 202.

[0052] As a preferred example of the present invention, at least three square grooves 209 are provided on the housing 101, corresponding one-to-one with each set of fixing rods 201. The fixing rods 201 are inserted into the square grooves 209, and the inner wall of the square grooves 209 forms a circumferential constraint on the fixing rods 201, so that the fixing rods 201 can only move up and down in the vertical direction, providing a stable guiding effect for the inclined pressure plate 202, ensuring that the multiple sets of inclined pressure plates 202 remain horizontal and that their lifting and lowering actions are synchronized. The width of the rubber sleeve 204 is greater than the width of the inclined pressure plate 202, so that when the inclined pressure plate 202 is pressed down, the pressure in its entire width direction can be fully applied to the rubber sleeve 204, ensuring that the air inlet hose 120 and liquid inlet hose 121 inside the rubber sleeve 204 are uniformly compressed and contracted across the entire cross section, avoiding flow regulation failure caused by local compression.

[0053] In the example of this application, the spray assist mechanism 200 further includes an adjustment component, which includes an arc-shaped frame 205 mounted above the fixed rod 201. A lead screw sleeve 206 is fixedly mounted in the middle of the arc-shaped frame 205. A lead screw 207 is provided above the housing 101. The size of the lead screw 207 is adapted to the size of the lead screw sleeve 206, and the lead screw 207 and the lead screw sleeve 206 are threadedly connected. A baffle 208 is fixedly mounted on the side of the housing 101 near the two-fluid air atomizing nozzle 118. A scale line is provided on the inner side of the baffle 208.

[0054] As a preferred example of the present invention, when the lead screw 207 is rotated, the threaded transmission between the lead screw 207 and the lead screw sleeve 206 converts the rotational motion into linear motion, thereby driving the arc frame 205 to rise and fall in the vertical direction. The arc frame 205 simultaneously drives multiple fixed rods 201 and inclined pressure plate 202 to change their initial height positions, thereby adjusting the initial distance between the inclined pressure plate 202 and the rubber sleeve 204, changing the maximum compression degree of the rubber sleeve 204 when the fixed frame 117 swings upward, and finally realizing the adjustment of the maximum flow rate of the nozzle spraying upward. The scale line on the inner side of the enclosure 208 can intuitively display the adjustment stroke of the arc frame 205, thereby facilitating the operator to perform adjustment operations.

[0055] In the example of this application, the box 101 has a corresponding through groove 119 on the side near the two-fluid air atomizing nozzle 118. The size of the through groove 119 is larger than the size of the two-fluid air atomizing nozzle 118. The upper and lower ends of the inner wall of the through groove 119 are provided with inclined grooves 119a. The side of the box 101 away from the through groove 119 is provided with a tool storage compartment 124. The side of the tool storage compartment 124 is equipped with a door 102 by a hinge.

[0056] As a preferred example of the present invention, a through groove 119 is provided on the side of the housing 101 facing the nozzle. The size of the through groove 119 is larger than the overall size of the two-fluid air atomizing nozzle 118, providing sufficient space for the nozzle to extend horizontally and swing up and down. Inclined grooves 119a are provided at the upper and lower ends of the inner wall of the through groove 119, and their inclination angle matches the swing trajectory of the nozzle, which can avoid the movement path of the nozzle when swinging and prevent the nozzle from colliding and scratching with the side wall of the housing 101. A tool storage compartment 124 is provided on the other side of the housing 101. The compartment door 102 is opened and closed by hinged rotation. It can be used to store spare parts and maintenance tools such as nozzles, hoses, disassembly and assembly tools, which are convenient for quick access and maintenance operations on the mining site.

[0057] It is worth noting that the two-fluid air atomizing nozzle 118 is housed in the through slot 119 opened on the housing 101. Therefore, it does not affect the extension of the fixing bracket 117 and the two-fluid air atomizing nozzle 118, and can also ensure the storage effect of the two-fluid air atomizing nozzle 118. Furthermore, the setting of the inclined slot 119a can reduce the possibility of the two-fluid air atomizing nozzle 118 getting stuck during the storage process, further ensuring the storage effect of the two-fluid air atomizing nozzle 118.

[0058] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-air mixing spray device for mining equipment, characterized in that: include: A spraying mechanism (100) includes a housing (101), in which at least three fixed frames (117) are arranged in a ring. One end of each fixed frame (117) is provided with a two-fluid air atomizing nozzle (118). On the side of the fixed frame (117) away from the two-fluid air atomizing nozzle (118), a pushing assembly for pushing the fixed frame (117) out of the housing (101) is provided, and a pressing assembly is provided on the pushing assembly for reciprocating oscillating spraying of the pushed fixed frame (117). A spraying auxiliary mechanism (200) is provided above the fixed frame (117). The spray assist mechanism (200) includes a squeezing component disposed on the fixed frame (117) for controlling the spray volume at different positions.

2. The water-air mixing spray device for mining equipment according to claim 1, characterized in that: The spraying mechanism (100) also includes a drive assembly, which includes an explosion-proof cylinder (103) installed on the top of the inner cavity of the housing (101). A connecting frame (104) is installed on the drive end of the explosion-proof cylinder (103). A sleeve (105) is fixedly installed on one side of the connecting frame (104). A limit post (106) is provided in the inner cavity of the sleeve (105). The upper end of the limit post (106) is fixedly connected to the top of the inner cavity of the housing (101). A plurality of diagonal braces (107) are fixedly installed on the outer side of the sleeve (105).

3. A water-air mixing spray device for mining equipment according to claim 2, characterized in that: The air inlet end of the two-fluid air atomizing nozzle (118) is connected to an air inlet hose (120), and the liquid inlet end of the two-fluid air atomizing nozzle (118) is connected to a liquid inlet hose (121). A water supply pipe (122) and an air supply pipe (123) are respectively installed through the lower end of the inner cavity of the housing (101). The air inlet ends of the multiple air inlet hoses (120) are respectively connected to the air outlet interface on the side wall of the air supply pipe (123), and the liquid inlet ends of the multiple liquid inlet hoses (121) are respectively connected to the liquid outlet interface on the side wall of the water supply pipe (122).

4. A water-air mixing spray device for mining equipment according to claim 3, characterized in that: The jacking assembly includes a support plate (115) installed in the inner cavity of the housing (101). The upper surface of the support plate (115) is provided with multiple jacking blocks (109). An inclined surface (109a) is provided above each jacking block (109). The extended end of the inclined surface (109a) is configured as a vertical surface (109b). A groove (111) of the same depth is formed in the middle of the inclined surface (109a) and the vertical surface (109b). The jacking block (109a)... 09) A slot (113) is provided on the side away from the vertical plane (109b). A limit rod (112) is provided in the inner cavity of the slot (113). The end of the limit rod (112) away from the slot (113) is fixedly connected to the inner wall of the box (101). Connecting rods (110) are welded on both the front and rear sides of the push block (109). The upper end of the connecting rod (110) is rotatably connected to the outer side of the fixing frame (117) through a rotating shaft (116).

5. A water-air mixing spray device for mining equipment according to claim 4, characterized in that: The size of the limiting rod (112) is adapted to the size of the slot (113), and the limiting rod (112) is movably inserted into the slot (113). A return spring (114) is sleeved on the outside of the limiting rod (112). One end of the return spring (114) is fixedly connected to the inner wall of the box (101), and the other end of the return spring (114) is fixedly connected to the push block (109). The end of the diagonal brace (107) near the groove (111) is set as a smooth arc surface (107a), and the diagonal brace (107) is movably inserted into the groove (111).

6. A water-air mixing spray device for mining equipment according to claim 5, characterized in that: The pressing assembly includes a counterweight (117a) embedded in the fixed frame (117) near the two-fluid air atomizing nozzle (118). There are two counterweights (117a) and they are arranged symmetrically. A lower pressing frame (108) is welded to the middle of the outer side of the diagonal brace (107). The lower pressing frame (108) is sleeved on the outer side of the fixed frame (117) and is located on the side of the fixed frame (117) away from the counterweight (117a).

7. A water-air mixing spray device for mining equipment according to claim 6, characterized in that: The extrusion assembly includes a fixed rod (201) disposed above the fixed frame (117). A slanted pressure plate (202) is fixedly installed at the lower end of the fixed rod (201). A plurality of square slots (209) are opened at the upper end of the housing (101). Pipe clamps (203) are installed on both sides of the upper end of the fixed frame (117). The pipe clamps (203) are connected to the corresponding air inlet hose (120) and liquid inlet hose (121). A rubber sleeve (204) is disposed on the outside of the fixed frame (117) near the slanted pressure plate (202). The rubber sleeve (204) is sleeved on the outside of the air inlet hose (120) and the liquid inlet hose (121). The rubber sleeve (204) is disposed below the slanted pressure plate (202).

8. A water-air mixing spray device for mining equipment according to claim 7, characterized in that: At least three square grooves (209) are provided. The size of the fixing rod (201) is adapted to the size of the square groove (209), and the fixing rod (201) is movably inserted into the square groove (209). The width of the rubber sleeve (204) is greater than the width of the inclined pressure plate (202).

9. A water-air mixing spray device for mining equipment according to claim 8, characterized in that: The spray assist mechanism (200) also includes an adjustment component, which includes an arc-shaped frame (205) installed above the fixed rod (201). A lead screw sleeve (206) is fixedly installed in the middle of the arc-shaped frame (205). A lead screw (207) is provided above the housing (101). The size of the lead screw (207) is adapted to the size of the lead screw sleeve (206), and the lead screw (207) is threadedly connected to the lead screw sleeve (206). A baffle (208) is fixedly installed on the side of the housing (101) near the two-fluid air atomizing nozzle (118). A scale line is provided on the inner side of the baffle (208).

10. A water-air mixing spray device for mining equipment according to claim 9, characterized in that: The box (101) has a corresponding through groove (119) on the side near the two-fluid air atomizing nozzle (118). The size of the through groove (119) is larger than the size of the two-fluid air atomizing nozzle (118). The upper and lower ends of the inner wall of the through groove (119) are provided with inclined grooves (119a). The side of the box (101) away from the through groove (119) is provided with a tool storage compartment (124). The side of the tool storage compartment (124) is equipped with a door (102) by hinge rotation.

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