Angle-adjustable wind-assisted fog curtain dust-settling device

Abstract

The application provides an angle-adjustable wind-assisted fog curtain dust-settling device, which comprises a suspension type angle-adjusting limiter, the suspension type angle-adjusting limiter is rotationally connected with a hydraulic support above the device, an L-shaped negative pressure filtering flow guide air box, the L-shaped negative pressure filtering flow guide air box has a cavity inside, the bottom of the L-shaped negative pressure filtering flow guide air box is provided with a plurality of spray openings, the spray openings are communicated with an external space, a spraying assembly, part of the structure of the spraying assembly is arranged inside the L-shaped negative pressure filtering flow guide air box, and part of the structure of the spraying assembly extends out of the L-shaped negative pressure filtering flow guide air box, the spraying assembly is configured to spray mist along a corresponding direction, and a Venturi auxiliary air supply assembly, the Venturi auxiliary air supply assembly is arranged on one side of the internal cavity of the L-shaped negative pressure filtering flow guide air box, and the Venturi auxiliary air supply assembly is configured to supply air outward from the spray openings. The application solves the problems of high cost, low operability and poor dust-settling effect in the prior art through the above device.

Description

Technical Field

[0001] This invention relates to the field of mining machinery technology, and in particular to an angle-adjustable wind-assisted fog curtain dust suppression device. Background Technology

[0002] In recent years, with the continuous progress of the coal mining industry in intelligentization, mechanization, and automation, the incidence of underground production safety accidents has significantly decreased. However, in this process, dust pollution has become increasingly prominent, especially in the mining, transportation, and processing stages of large coal mines, where large amounts of coal dust are generated, posing a continuous threat to the underground environment and the health of personnel.

[0003] Studies have shown that inhalable particulate matter in the air can have various effects on the human respiratory and cardiovascular systems, including but not limited to causing airway dysfunction, decreased lung function, and increasing the risk of occupational diseases such as pneumoconiosis. Therefore, effectively controlling coal mine dust has become one of the key issues urgently needing to be addressed in the field of coal mine safety and occupational health.

[0004] In coal mine dust suppression technologies, spray dust suppression is one of the most commonly used methods due to its relatively simple operation and strong adaptability. This technology mainly achieves dust settling through multiple physical pathways, including inertial collisions between dust particles and droplets, droplet interception and capture of particles, electrostatic adsorption effect, Brownian diffusion, and gravitational settling. These mechanisms work together to wet, increase the weight of suspended dust, and ultimately separate it from the air.

[0005] However, conventional spray dust suppression methods commonly used in wells still have several limitations. On the one hand, the spray coverage area is often relatively limited, making it difficult to effectively target large areas around dust-generating points or along dust diffusion paths. On the other hand, the coordination between spray range and mist field distribution is insufficient, leading to a decrease in long-distance dust suppression effectiveness, and the overall dust removal efficiency still has room for improvement. These factors affect the comprehensiveness and stability of spray dust suppression technology in complex well environments, limiting its application in large-scale, high-concentration dust environments. Summary of the Invention

[0006] This application provides an angle-adjustable wind-assisted fog curtain dust suppression device to solve the problems of high cost, low operability, and insignificant dust suppression effect in the prior art.

[0007] The device includes: A suspended angle adjustment limiter, wherein the suspended angle adjustment limiter is rotatably connected to a hydraulic support above the device; The L-shaped negative pressure filter and air guide box has an internal cavity and several spray nozzles at the bottom, which are connected to the external space. A spray assembly, wherein a portion of the spray assembly is disposed inside the L-shaped negative pressure filter guide air box, and a portion of the spray assembly extends out of the L-shaped negative pressure filter guide air box, and the spray assembly is configured to spray mist in a corresponding direction; A Venturi-assisted air supply assembly is disposed on one side of the internal cavity of the L-shaped negative pressure filter guide air box, and the Venturi-assisted air supply assembly is configured to supply air outward from the spray nozzle.

[0008] Preferably, the suspended angle adjustment limiter includes: A top shaft retainer, wherein the shaft seat portion of the top shaft retainer is fixedly connected to a hydraulic support; A rotating shaft angle adjuster is connected to the top shaft fixer, and the shaft seat portion of the rotating shaft angle adjuster is fixedly connected to the top of the L-shaped negative pressure filter guide air box.

[0009] Preferably, the bottom of the L-shaped negative pressure filter guide air box is provided with four spray nozzles; The L-shaped negative pressure filter guide air box includes: Several ventilation hoods are provided at the corresponding spray nozzles.

[0010] Preferably, the L-shaped negative pressure filter guide box further includes: An elliptical air intake hood is provided at the bottom of the L-shaped negative pressure filter guide air box, and the elliptical air intake hood corresponds to the air intake position of the Venturi auxiliary air supply assembly. A square air intake hood is disposed on the side of the L-shaped negative pressure filter guide air box, and the square air intake hood corresponds to the air intake position of the Venturi auxiliary air supply assembly.

[0011] Preferably, the Venturi-assisted air supply assembly includes: A single-channel Venturi tube, wherein the single-channel Venturi tube has a structure with a wide opening at one end and a narrow opening at the other end, and the wide opening side of the single-channel Venturi tube faces the spray assembly; A detachable filter duct is provided on the narrow opening side of the single-channel venturi tube. A hydraulic blower is disposed in the detachable filter duct and is configured to deliver air from the narrow opening side to the wide opening side of the single-channel venturi tube.

[0012] Preferably, the single-channel venturi tube comprises: A venturi tube, wherein the venturi tube has a structure with a wide opening at one end and a narrow opening at the other end; The box body has a wind baffle with a hole at its center. The wind baffle is located on the narrow opening side of the Venturi tube. The hole on the wind baffle corresponds to the opening size of the narrow opening side of the Venturi tube. The outer edge of the wind baffle is tightly fitted to the inner wall of the L-shaped negative pressure filter guide air box.

[0013] Preferably, the detachable filter duct includes: A return air dust filter base, wherein the return air dust filter base has a plurality of filter holes; A semi-filter duct, wherein the semi-filter duct has a plurality of filter holes, and the return air dust filter base is disposed on the side of the semi-filter duct near the single-channel venturi tube. An air inlet dust filter base has several filter holes and is located on the side of the semi-filter duct away from the single-channel venturi tube. A support rod is provided on the outside of the semi-filter duct and is connected to the inner wall of the L-shaped negative pressure filter guide box.

[0014] Preferably, the hydraulic blower includes: fan; A hydraulic motor, the power output side of which is connected to the fan, is configured to drive the fan to rotate; A motor retainer is fixedly connected to both the hydraulic motor and the detachable filter duct.

[0015] Preferably, the spray assembly includes: Water pipe, which is located inside and above the L-shaped negative pressure filter guide air box; Several water pipe branches are connected to the water pipe, and the water pipe branches extend into the ventilation hood, with a gap between the ventilation hood and the water pipe branches; Several nozzles, each corresponding to a branch pipe of the water pipe, are located at the outlet of the branch pipe.

[0016] As described above, this application provides an angle-adjustable wind-assisted fog curtain dust suppression device. The device includes a suspended angle adjustment limiter rotatably connected to a hydraulic support above the device; an L-shaped negative pressure filter guide air box with an internal cavity and several spray nozzles at its bottom, the nozzles communicating with the external space; a spray assembly, partly disposed inside the L-shaped negative pressure filter guide air box and partially extending out of it, configured to spray mist in a corresponding direction; and a Venturi-assisted air supply assembly disposed on one side of the internal cavity of the L-shaped negative pressure filter guide air box, configured to supply air outward from the spray nozzles. This application solves the problems of high cost, low operability, and insignificant dust suppression effect in the prior art through the above device. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 2 This is a schematic diagram of the suspended angle adjustment limiter in an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 3 This is a schematic diagram of the structure of the L-shaped negative pressure filter guide air box in an angle-adjustable wind-assisted fog curtain dust suppression device of this application; Figure 4 This is a schematic diagram of the structure of the Chinese Qiuli auxiliary air supply component of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 5 This is a schematic diagram of the components of the Chinese-language auxiliary air supply assembly of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application. Figure 6 This is a schematic diagram of the spray component structure in an angle-adjustable wind-assisted fog curtain dust suppression device according to this application.

[0019] Legend: 1000-Suspended angle adjustment limiter; 1100-Top shaft fixer; 1200-Rotating shaft angle adjuster; 2000-L-type negative pressure filter guide air box; 2100-Ventilation hood; 2200-Oval air inlet hood; 2300-Square air inlet hood; 3000-Venturi auxiliary air supply assembly; 3100-Single channel Venturi tube; 3110-Venturi tube; 3120-Box baffle; 3200-Removable filter duct; 3210-Return air dust filter base; 3220-Semi-filter duct; 3230-Inlet air dust filter base; 3240-Support rod; 3300-Hydraulic fan; 3310-Fan; 3320-Hydraulic motor; 3330-Motor fixer; 4000-Spray assembly; 4100-Water pipe; 4200-Water pipe branch pipe; 4300-Nozzle. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0022] It should be noted that, in this application, the terms "exemplary" or "for example" are used to indicate that something is being described as an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0023] Figure 1 This is a schematic diagram of the structure of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 2 This is a schematic diagram of the suspended angle adjustment limiter in an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 3 This is a schematic diagram of the structure of the L-shaped negative pressure filter guide air box in an angle-adjustable wind-assisted fog curtain dust suppression device of this application; Figure 4 This is a schematic diagram of the structure of the Chinese Qiuli auxiliary air supply component of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application; Figure 5 This is a schematic diagram of the components of the Chinese-language auxiliary air supply assembly of an angle-adjustable wind-assisted fog curtain dust suppression device according to this application. Figure 6 This is a schematic diagram of the spray component structure in an angle-adjustable wind-assisted fog curtain dust suppression device according to this application.

[0024] See Figures 1 to 6 As can be seen, this embodiment provides an angle-adjustable wind-assisted fog curtain dust suppression device, which consists of a suspended angle adjustment limiter 1000, an L-shaped negative pressure filter guide air box 2000, a Venturi auxiliary air supply component 3000, and a spray component 4000.

[0025] The suspended angle adjustment limiter 1000 includes three sets of top shaft fixers 1100 and rotating shaft angle adjusters 1200. The shaft seat of the top shaft fixer 1100 of the suspended angle adjustment limiter 1000 is fixedly connected to the upper part of the hydraulic support and suspended. The shaft seat of the rotating shaft angle adjuster 1200 is fixedly connected to the L-shaped negative pressure filter guide air box 2000. The round shaft part of the top shaft fixer 1100 is inserted into the rotating shaft angle adjuster 1200. The rotating shaft angle adjuster 1200 has a mechanical structure. When the angle needs to be adjusted, the angle of the mechanical structure is adjusted by the internal motor to realize the adjustment of the device angle.

[0026] The L-shaped negative pressure filter guide air box 2000 has four ventilation hoods 2100 on the left and an oval air intake hood 2200 and a square air intake hood 2300 on the right. The square air intake hood 2300 on the right has a larger area and can better absorb dust from the underground working walkway. The oval air intake hood 2200 has fewer openings and is used to assist in air intake and dust extraction.

[0027] The Venturi auxiliary air supply assembly 3000 includes a single-channel Venturi tube 3100, a detachable filter duct 3200, and a hydraulic fan 3300.

[0028] The single-channel venturi tube 3100 includes a venturi tube 3110 and a housing baffle 3120. The venturi tube 3110 accelerates the airflow, while the housing baffle 3120 prevents the airflow from flowing out of the venturi tube 3110 and then to the right, so that the airflow absorbed by the hydraulic blower 3300 is the dust-laden airflow on the sidewalk, thus reducing the dust on the sidewalk.

[0029] The detachable filter duct 3200 includes a return air dust filter base 3210, a semi-filter duct 3220, an inlet air dust filter base 3230, and a support rod 3240. When the device is not running, some dust may diffuse towards the hydraulic fan 3300. The return air dust filter base 3210 acts as a barrier between the venturi tube 3110 and the hydraulic fan 3300, which can reduce the damage caused by dust to the hydraulic fan 3300. When the hydraulic fan 3300 starts running, the dust is drawn into the L-shaped negative pressure filter guide box 2000. The semi-filter duct 3220 and the inlet air dust filter base 3230 block some dust from entering the range of the hydraulic fan 3300 from the right side, which can reduce the damage caused by dust to the hydraulic fan 3300.

[0030] The hydraulic blower 3300 includes a fan 3310, a hydraulic motor 3320, and a motor holder 3330. The hydraulic motor 3330 has two oil ports located at the rear of the motor. It is driven by high-pressure water through a high-pressure water pipe to achieve the purpose of auxiliary air delivery.

[0031] The spray assembly 4000 includes a water pipe 4100, four water pipe branches 4200, and four nozzles 4300. The water pipe 4100 is located inside the upper part of the L-shaped negative pressure filter guide air box 2000, the four water pipe branches 4200 are inserted into four ventilation hoods 2100, and the nozzles 4300 are connected to the lower part of the water pipe branches 4200.

[0032] The advantages of this embodiment include: By setting a suspended angle adjustment limiter, the L-shaped negative pressure filter guide air box and spray assembly can adjust the spray angle within a certain range in front and behind, thereby increasing the atomization angle and making the spray coverage area larger; By using a hydraulic blower to assist in air supply, dust can be drawn into an L-shaped negative pressure filter guide box to reduce dust on the walkway, and the blown airflow can assist in dust suppression by spraying, increasing the spray range, further reducing the dust content in the roadway, and protecting the occupational health of mine employees.

[0033] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the discussion in some embodiments is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the contents of this disclosure, thereby enabling those skilled in the art to better utilize the embodiments.

Claims

1. An angle-adjustable wind-assisted fog curtain dust suppression device, characterized in that, The device includes: A suspended angle adjustment limiter (1000) is rotatably connected to a hydraulic support above the device. L-shaped negative pressure filter guide air box (2000), the L-shaped negative pressure filter guide air box (2000) has a cavity inside, and the bottom of the L-shaped negative pressure filter guide air box (2000) has a number of spray nozzles, the spray nozzles are connected to the external space; A spray assembly (4000) has a portion of its structure disposed inside the L-shaped negative pressure filter guide box (2000), and a portion of its structure extends out of the L-shaped negative pressure filter guide box (2000). The spray assembly (4000) is configured to spray mist in a corresponding direction. A Venturi-assisted air supply assembly (3000) is disposed on one side of the internal cavity of the L-shaped negative pressure filter guide air box (2000), and the Venturi-assisted air supply assembly (3000) is configured to supply air outward from the spray nozzle.

2. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 1, characterized in that, The suspended angle adjustment limiter (1000) includes: A top shaft retainer (1100) is fixedly connected to a hydraulic support for its bearing portion. A rotating shaft adjuster (1200) is axially connected to the top shaft fixer (1100), and the shaft seat portion of the rotating shaft adjuster (1200) is fixedly connected to the top of the L-shaped negative pressure filter guide air box (2000).

3. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 1, characterized in that, The bottom of the L-shaped negative pressure filter guide air box (2000) is provided with four spray nozzles; The L-shaped negative pressure filter guide box (2000) includes: Several ventilation hoods (2100) are provided at the corresponding spray nozzles.

4. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 3, characterized in that, The L-shaped negative pressure filter guide box (2000) also includes: An elliptical air intake hood (2200) is provided at the bottom of the L-shaped negative pressure filter guide air box (2000), and the elliptical air intake hood (2200) corresponds to the air intake position of the Venturi auxiliary air supply assembly (3000). A square air intake hood (2300) is provided on the side of the L-shaped negative pressure filter guide air box (2000), and the square air intake hood (2300) corresponds to the air intake position of the Venturi auxiliary air supply assembly (3000).

5. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 1, characterized in that, The Venturi auxiliary air supply assembly (3000) includes: A single-channel venturi tube (3100) has a structure with a wide opening at one end and a narrow opening at the other end, with the wide opening side of the single-channel venturi tube (3100) facing the spray assembly (4000). A detachable filter duct (3200) is provided on the narrow opening side of the single-channel venturi tube (3100); A hydraulic blower (3300) is disposed in the detachable filter duct (3200) and is configured to deliver air from the narrow opening side to the wide opening side of the single-channel venturi tube (3100).

6. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 5, characterized in that, The single-channel venturi tube (3100) includes: Venturi tube (3110), wherein the Venturi tube (3110) has a structure with a wide opening at one end and a narrow opening at the other end; The box body baffle (3120) has a hole at its center. The box body baffle (3120) is located on the narrow opening side of the Venturi tube (3110). The hole on the box body baffle (3120) corresponds to the opening size of the narrow opening side of the Venturi tube (3110). The outer edge of the box body baffle (3120) is tightly fitted to the inner wall of the L-shaped negative pressure filter guide air box (2000).

7. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 5, characterized in that, The detachable filter duct (3200) includes: Return air dust filter base (3210), the return air dust filter base (3210) has a plurality of filter holes; A semi-filter duct (3220) has several filter holes, and the return air dust filter base (3210) is located on the side of the semi-filter duct (3220) near the single-channel venturi tube (3100). An air inlet dust filter base (3230) has several filter holes and is located on the side of the semi-filter duct (3220) away from the single-channel venturi tube (3100). A support rod (3240) is disposed outside the semi-filter duct (3220) and is connected to the inner wall of the L-shaped negative pressure filter guide box (2000).

8. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 5, characterized in that, The hydraulic blower (3300) includes: Fan (3310); A hydraulic motor (3320) is provided, the power output side of which is connected to the fan (3310), and the hydraulic motor (3320) is configured to drive the fan (3310) to rotate. Motor retainer (3330) is fixedly connected to the hydraulic motor (3320) and the detachable filter duct (3200).

9. The angle-adjustable wind-assisted fog curtain dust suppression device according to claim 3, characterized in that, The spray assembly (4000) includes: Water pipe (4100), the water pipe (4100) is located inside the upper part of the L-shaped negative pressure filter guide air box (2000); Several water pipe branch pipes (4200) are connected to the water pipe (4100). The water pipe branch pipes (4200) extend into the ventilation hood (2100), and there is a gap between the ventilation hood (2100) and the water pipe branch pipes (4200). A plurality of nozzles (4300) are provided, each corresponding to a branch pipe (4200) of the water pipe, and the nozzles (4300) are located at the outlet of the branch pipe (4200).

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