Dustproof device for mining

Abstract

The utility model discloses an anti-dust device for mining. The anti-dust device comprises a dust treatment box, the dust treatment box is provided with an air inlet, a containing cavity and an air outlet which are sequentially communicated in the airflow filtering direction; a supporting frame is fixed to the inner wall of the dust treatment box. A filtering device; the filtering device is arranged in the accommodating cavity; the air inlet and the filtering device are sequentially communicated along the airflow filtering direction; the filtering device comprises a telescopic rod, a filtering assembly and a sealing plate; a fixed cylinder of the telescopic rod is connected with the support frame; the telescopic rod comprises a plurality of sections of movable rods which are telescopically connected in sequence; the filter assembly comprises a plurality of filter cartridges, and the plurality of filter cartridges are movably nested; the plurality of movable rods are in linkage connection with the plurality of filter cartridges in a one-to-one correspondence manner; a plurality of filter holes are formed in the filter cartridges, and the filter holes formed in the different filter cartridges are sequentially communicated in the airflow filtering direction; the sealing plate can seal the filtering assembly. The multi-layer filter assembly can be automatically separated and is directly washed by the cleaning mechanism, so that the cleaning effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, and in particular to a dust control device for mining. Background Art

[0002] With the development of mining technology, dust control devices for mining have emerged, mainly divided into two types. One type uses nozzles to spray water into the air in the mine, causing dust particles to combine with water, increase their weight, and settle, thereby reducing the dust content in the air. The other type uses multiple layers of filters with different pore sizes to filter the air layer by layer, effectively intercepting dust particles of different sizes to prevent them from spreading in the mine.

[0003] Related technologies include mining dust control devices with multi-layered filters. A filter with a larger pore size is installed at the air inlet to initially intercept larger dust particles, followed by filters with medium and smaller pore sizes to finely filter the dust.

[0004] However, the multi-layer filter design in the above-mentioned device has the problem of the filter being difficult to clean. Due to the high dust concentration and auxiliary components in the mining environment, dust is easy to clog the filter. If it is not cleaned for a long time, the filtration efficiency will decrease. Directly washing the multi-layer filter assembly cannot penetrate the multi-layer filter, resulting in the innermost or outermost filter not being cleaned. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a dust prevention device for mining, wherein the multi-layer filter components can be automatically separated and directly accepted by the cleaning mechanism for rinsing.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A dust control device for mining, comprising:

[0008] Dust handling box; The dust handling box has an air inlet, a accommodating cavity and an air outlet connected sequentially along the airflow filtration direction; A support frame is fixed to the inner wall of the dust handling box;

[0009] A filtration device is housed within a cavity. An air inlet is sequentially connected to the filtration device along the airflow filtration direction. The filtration device includes a telescopic rod, a filter assembly, and a sealing plate. The fixed cylinder of the telescopic rod is connected to a support frame. The telescopic rod comprises multiple movable sections connected in a telescopic manner. The filter assembly includes multiple filter cartridges nested within each other. Multiple movable rods are linked to multiple filter cartridges in a one-to-one correspondence. Multiple filter holes are provided on each filter cartridge, and these holes on different filter cartridges are sequentially connected along the airflow filtration direction. The sealing plate can seal the filtration assembly.

[0010] Inhalation device; The intake device is located at the air inlet;

[0011] Cleaning device: The cleaning device includes a nozzle; the nozzle faces the filter device.

[0012] In one embodiment, multiple filter cartridges are coaxially nested in a radial direction; the diameters of the nested filter cartridges increase sequentially from the inside to the outside.

[0013] In one embodiment, the diameter of multiple filter holes in different filter cartridges decreases sequentially along the airflow filtration direction;

[0014] The air inlet is connected to the filter device via a guide pipe; the guide pipe is connected to the filter cartridge nested in the innermost layer.

[0015] In one embodiment, the innermost filter cartridge is connected to the fixed cartridge; the multiple nested telescopic rods are connected one-to-one with the nested filter cartridges in order from the outside to the inside.

[0016] In one embodiment, after the multiple movable rods drive the corresponding filter cartridges to disengage from their nesting relationship, the radial projections of the multiple filter cartridges do not overlap.

[0017] In one embodiment, the telescopic rod extends obliquely upward; the telescopic rod is set at an angle A with the inner wall of the dust handling box, where 0 < A < 90°.

[0018] In one embodiment, the telescopic rod is movably connected to the support frame; the fixed cylinder is connected to a rotary motor, the output of the rotary motor is driven by the telescopic rod, and the multiple movable rods are circumferentially linked.

[0019] In one embodiment, the sealing plate is connected to the fixed cylinder; the edge of the sealing plate is joined to the edge of the filter cylinder with the largest diameter.

[0020] In one embodiment, the nozzle is a high-pressure nozzle.

[0021] In one embodiment, a wastewater guide is provided inside the dust treatment box; the wastewater guide is located below the filter device; a water outlet is provided at the bottom of the dust treatment box, and the wastewater guide and the water outlet are connected sequentially along the drainage direction.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The dust handling box provides a frame structure for the overall dust prevention device. The dust handling box has an air inlet, a accommodating cavity, and an air outlet connected sequentially along the airflow filtration direction, ensuring smooth airflow within the dust handling box. This allows the dust-filled air in the mine to be filtered, achieving the dust prevention effect of the dust prevention device for mining, ensuring the health of miners, ensuring safe production in the mine, and improving production efficiency.

[0024] 2. The filter device is installed inside the accommodating cavity. The air inlet is connected to the filter device sequentially along the airflow filtration direction. The filter device includes a telescopic rod, a filter assembly, and a sealing plate. The fixed cylinder of the telescopic rod is connected to the support frame. The telescopic rod includes multiple movable rods, which are connected in a telescopic manner. Multiple movable rods are linked to multiple filter cartridges in a one-to-one correspondence. The telescopic rod can automatically nest or separate multiple filter cartridges in the filter assembly. When the dust control device for mining filters dust, the multiple filter cartridges of the filter assembly are nested to filter dust in multiple layers. After the dust control device for mining is used, the multiple filter cartridges of the filter assembly are separated, making it easy for the cleaning device to wash each layer of filter cartridges individually.

[0025] 3. The filter assembly includes multiple filter cartridges, which are nested together and movably arranged. The filter assembly filters dust from the airflow layer by layer, improving the filtration efficiency of the dust control device used in mining. Multiple filter holes are provided on each filter cartridge, and these holes on different cartridges are sequentially connected along the airflow filtration direction, allowing the filter holes to filter dust from the airflow layer by layer. A sealing plate can enclose the filter assembly, ensuring that during the filtration process, the airflow can only pass through the filter holes, preventing dust leakage.

[0026] 4. The suction device is located at the air inlet, generating negative pressure to propel the dust-laden airflow into the dust handling box and through the filter. The cleaning device includes nozzles facing the filter, allowing direct rinsing of each filter cartridge and improving cleaning efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the dust control device for mining according to the present invention.

[0028] Figure 2 for Figure 1 The diagram shows a cross-sectional view of a dust control device used in mining.

[0029] Figure 3 for Figure 2 The diagram shows the structure of the filter device in a dust control system for mining.

[0030] Figure 4 This is a schematic diagram of the filter assembly of a filtration device.

[0031] In the diagram: 100, dust handling box; 110, air inlet; 120, accommodating cavity; 130, air outlet; 140, support frame; 200, filter device; 210, telescopic rod; 220, filter assembly; 221, filter cartridge; 230, sealing plate; 300, air intake device; 400, cleaning device; 410, nozzle; 500, guide pipe; 600, wastewater guide component. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0033] It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is described as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] See Figures 1-4 This invention illustrates a preferred embodiment of a dust control device for mining, comprising: a dust handling box 100, a filter device 200, an air intake device 300, and a cleaning device 400.

[0036] See Figure 1 and Figure 2 The dust handling box 100, as the outer shell structure of the entire dust control device for mining, plays a crucial role in housing and protecting the internal components, while also providing a specific spatial environment for airflow filtration. The dust handling box 100 has an inlet 110, a receiving cavity 120, and an outlet 130 connected sequentially along the airflow filtration direction. The inlet 110 is the channel through which dust-laden airflow from the mine enters the dust handling box 100. The receiving cavity 120 is the core space for the installation and operation of the entire filtration device 200; its volume must fully consider the extended dimensions of the filtration device 200 and the airflow characteristics within the cavity to ensure that the airflow passes evenly through the filtration device 200, achieving efficient dust filtration. The outlet 130 is responsible for discharging the filtered clean air into the mine, thereby achieving dust removal. A support frame 140 is fixed to the inner wall of the dust handling box 100, providing a stable mounting foundation for the filtration device 200.

[0037] See Figure 2 and Figure 3The filter device 200 is disposed within the receiving cavity 120. The air inlet 110 is sequentially connected to the filter device 200 along the airflow filtration direction. The filter device 200 includes a telescopic rod 210, a filter assembly 220, and a sealing plate 230. The fixed cylinder of the telescopic rod 210 is connected to the support frame 140 to ensure that the telescopic rod 210 is securely installed within the dust handling box 100. The telescopic rod 210 includes multiple movable rods, which are sequentially telescopically connected in a nested manner, allowing the telescopic rod 210 to be extended or retracted as needed. Schematic, an electric telescopic rod 210 is used. When cleaning and maintenance of the filter device 200 is required, the electric telescopic rod 210 extends the movable rod to unfold the multiple filter cartridges 221 of the filter cartridge 221 assembly. During normal filtration operation, the electric telescopic rod 210 retracts the movable rod, allowing the airflow to pass through the filter cartridge 221 assembly step by step to complete the filtration.

[0038] See Figure 3 and Figure 4 The filter assembly 220 includes multiple filter cartridges 221, which are movably nested to form a multi-layer nested filter structure, capable of classifying and filtering dust particles of different sizes to improve the filtration effect. Multiple filter holes are provided on the filter cartridges 221, and these holes in different filter cartridges 221 are sequentially connected along the airflow filtration direction.

[0039] Multiple movable rods are linked to multiple filter cartridges 221 in a one-to-one manner. When the telescopic rod 210 extends or retracts, the multiple filter cartridges 221 of the filter cartridge 221 assembly can synchronously extend or retract to ensure the integrity and coordination of the entire filtration device 200.

[0040] The sealing plate 230 can seal the filter assembly 220. When the filter assembly 220 retracts with the telescopic rod 210 to prepare for filtration, the sealing plate 230 seals the filter cartridge 221 assembly. Schematic, the sealing plate 230 is equipped with a sealing strip to prevent unfiltered air from leaking into the filtered accommodating cavity 120 area due to gaps, which would affect the filtration effect and the normal use of the device.

[0041] See Figure 2 The suction device 300 is located at the air inlet 110 and serves as the power source for the dust-laden airflow in the mine to enter the dust treatment box 100. Schematic, the suction device 300 is in the form of a fan. The suction device 300 is tightly connected to the air inlet 110 to prevent air leakage from affecting the suction effect and the negative pressure environment of the suction device 300.

[0042] See Figure 2The cleaning device 400 includes a nozzle 410, illustratively speaking. The cleaning device 400 is equipped with a corresponding liquid supply system, illustratively speaking, a water tank. The nozzle 410 is connected to the water tank via a water pipe to rinse the filter device 200. Illustratively speaking, the nozzle 410 is connected to a water pump and an existing water supply system. The nozzle 410 faces the filter device 200, enabling it to spray evenly onto the surface of the filter cartridge 221, achieving a good cleaning effect.

[0043] The beneficial effects of the dust control device for mining in this embodiment include:

[0044] The dust handling box 100 provides a frame structure for the overall dust prevention device. The dust handling box 100 has an air inlet 110, a accommodating cavity 120 and an air outlet 130 connected sequentially along the airflow filtration direction, which ensures the smooth flow of airflow in the dust handling box 100, so that the dust-filled air in the mine is filtered, realizing the dust prevention effect of the dust prevention device for mining, ensuring the health of miners, ensuring safe production in the mine, and improving production efficiency.

[0045] Multiple movable rods are linked to multiple filter cartridges 221 in a one-to-one manner. The telescopic rod 210 can automatically nest or separate multiple filter cartridges 221 in the filter assembly 220. When the dust control device for mining filters dust, the multiple filter cartridges 221 of the filter assembly 220 are nested to filter dust in multiple layers. After the dust control device for mining is used, the multiple filter cartridges 221 of the filter assembly 220 are separated, so that the cleaning device 400 can wash each layer of filter cartridges 221 individually.

[0046] The filter assembly 220 includes multiple filter cartridges 221, which are movably nested together. The filter assembly 220 filters dust from the airflow layer by layer, improving the filtration efficiency of the dust control device used in mining. Multiple filter holes are provided on each filter cartridge 221, and these holes are sequentially connected along the airflow filtration direction, allowing the filter holes to filter dust from the airflow layer by layer. The sealing plate 230 can seal the filter assembly 220, ensuring that during the filtration process, the airflow can only pass through the filter holes, preventing dust leakage.

[0047] The suction device 300 is located at the air inlet 110, where a negative pressure is generated to push the dust-laden airflow into the dust handling box 100 and through the filter device 200. The cleaning device 400 includes a nozzle 410 facing the filter device 200, which can directly rinse each filter cartridge 221, improving the cleaning effect.

[0048] In this embodiment, preferably, see Figures 2-4Multiple filter cartridges 221 are coaxially nested in a radial direction; the diameters of the nested filter cartridges 221 increase sequentially from the inside out. Schematic, the multiple filter cartridges 221 have a cylindrical structure, arranged in a concentric cylindrical layout, with the diameters of the nested filter cartridges 221 increasing sequentially from the inside out. The innermost filter cartridge 221 has the smallest diameter, and the outermost filter cartridge 221 has the largest diameter. The airflow can diffuse from the innermost filter cartridge 221 to the outermost filter cartridge 221, or vice versa.

[0049] In this embodiment, preferably, the diameter of the multiple filter holes in different filter cartridges 221 decreases sequentially along the airflow filtration direction. As the airflow flows, it gradually intercepts dust particles with increasingly smaller diameters. The air inlet 110 is connected to the filter device 200 through the guide pipe 500; the guide pipe 500 is connected to the innermost filter cartridge 221. Schematic, the dust-laden airflow first enters the innermost filter cartridge 221. The innermost filter cartridge 221 has the smallest diameter but the largest filter hole diameter, enabling it to initially intercept and filter relatively large dust particles in the airflow. As the airflow diffuses outward, when it passes through the outer filter cartridges 221 with gradually increasing diameters, the outer filter cartridges 221 can sequentially intercept even smaller dust particles, achieving gradual and orderly filtration of dust particles of different sizes, maximizing the filtration effect, and ensuring that the air flowing out of the filter cartridge 221 assembly is as clean as possible.

[0050] In this embodiment, preferably, see Figure 2 The innermost filter cartridge 221 is connected to the fixed cylinder. Multiple nested telescopic rods 210 are sequentially connected to the nested filter cartridges 221 in a corresponding order from the outside to the inside. Illustratively, when the filter cartridge 221 assembly needs to be extended to separate the filter cartridges 221, the telescopic rods 210 extend, and the connected filter cartridges 221 extend outwards in the corresponding order, releasing the nesting state. Conversely, when the filter cartridge 221 assembly needs to be contracted for filtration, the telescopic rods 210 contract, and the filter cartridges 221 contract inwards in an orderly manner, forming a nested state.

[0051] In this embodiment, preferably, after the multiple movable rods drive the corresponding filter cartridges 221 to disengage from the nesting relationship, the radial projections of the multiple filter cartridges 221 do not overlap, so that the cleaning device can directly spray and wash each filter cartridge 221 individually, and the multiple filter cartridges 221 will not block the impact force of the water flow, making it convenient to clean the dust inside the filter cartridges 221.

[0052] In this embodiment, preferably, see Figure 2The telescopic rod 210 extends upward at an angle, and is set at an angle A with the inner wall of the dust handling box 100, where 0 < A < 90°. When the cleaning device cleans the filter device 200, the filter cartridge 221 can drain water or sewage using gravity. The tilted angle can help sewage and other liquids flow naturally down the filter cartridge 221, which can remove more dust from the filter cartridge 221.

[0053] In this embodiment, preferably, the telescopic rod 210 is movably sleeved with the support frame 140, the fixed cylinder is connected to a rotary motor, and the output of the rotary motor is driven by the telescopic rod 210. Multiple movable rods are circumferentially linked, with the movable rod closest to the fixed cylinder of the telescopic rod 210 circumferentially connected to the fixed cylinder. When one movable rod, i.e., the one closest to the fixed cylinder, rotates a certain angle around the central axis, the other movable rods will also synchronously rotate the same angle around the central axis to ensure the transmission of rotational motion and achieve circumferential linkage. Illustratively, when cleaning the filter cartridge 221, the rotary motor drives the telescopic rod 210 to rotate, causing the filter cartridge 221 assembly to rotate accordingly. Combined with the high-pressure cleaning fluid and water jet sprayed from the nozzle 410, all surfaces of the filter cartridge 221 can be cleaned evenly and thoroughly, avoiding cleaning dead zones and further improving the cleaning effect. During normal filtration operation, appropriate rotation can also change the flow state of airflow on the surface of filter cartridge 221, prevent excessive dust accumulation in a certain place of filter cartridge 221, extend the service life of filter cartridge 221, and optimize the performance of the entire filtration device 200.

[0054] In this embodiment, preferably, see Figure 2 and Figure 3 The sealing plate 230 is connected to the fixed cylinder, and the edge of the sealing plate 230 is connected to the edge of the filter cylinder 221 with the largest diameter, which can ensure the sealing performance and prevent external dust from entering the filtered area or intercepted dust from being re-mixed into the airflow.

[0055] In this embodiment, preferably, the nozzle 410 is a high-pressure nozzle. When cleaning the filter cartridge 221 assembly, the high-pressure nozzle can generate a large jet pressure, so that the sprayed cleaning fluid has a stronger impact force. This can more effectively wash away the dust that has accumulated on the surface and inside the filter holes of the filter cartridge 221 over a long period of time, ensuring that the filter cartridge 221 can restore good filtration performance after cleaning. This greatly improves cleaning efficiency and quality, reduces the decline in filtration effect caused by problems such as filter cartridge 221 blockage and dust residue, extends the service life of the filter cartridge 221 assembly, and ensures that the dust control device for mining can operate continuously and stably.

[0056] In this embodiment, preferably, see Figure 2The dust treatment box 100 is equipped with a wastewater guide 600, which is located below the filter device 200. The bottom of the dust treatment box 100 has a water outlet, and the wastewater guide 600 and the water outlet are connected sequentially along the drainage direction. The wastewater guide 600 is used to more rationally and efficiently treat the wastewater generated after cleaning the filter cartridge 221. During the cleaning of the filter cartridge 221, the wastewater containing dust, washed down by the high-pressure nozzle, flows downwards along the surface of the filter cartridge 221 under gravity. The wastewater guide 600 collects this dispersed wastewater and guides it to flow orderly towards the water outlet in a predetermined drainage direction, ultimately discharging it outside the dust treatment box 100.

[0057] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dust control device for mining, characterized in that, include: Dust handling box (100); the dust handling box (100) has an air inlet (110), a accommodating cavity (120) and an air outlet (130) connected sequentially along the airflow filtration direction; a support frame (140) is fixed to the inner wall of the dust handling box (100); A filter device (200) is disposed within a receiving cavity (120); an air inlet (110) is sequentially connected to the filter device (200) along the airflow filtration direction; the filter device (200) includes a telescopic rod (210), a filter assembly (220), and a sealing plate (230); the fixed cylinder of the telescopic rod (210) is connected to the support frame (140); the telescopic rod (210) includes multiple movable rods, which are sequentially telescopically connected; the filter assembly (220) includes multiple filter cartridges (221), which are movably nested; the multiple movable rods are linked to the multiple filter cartridges (221) in a one-to-one correspondence; the filter cartridges (221) have multiple filter holes, which are sequentially connected along the airflow filtration direction; the sealing plate (230) can seal the filter assembly (220); A suction device (300); the suction device (300) is disposed at the air inlet (110); Cleaning device (400): The cleaning device (400) includes a nozzle (410); the nozzle (410) is directed toward the filter device (200).

2. The dust control device for mining according to claim 1, characterized in that: The plurality of filter cartridges (221) are arranged coaxially in a radial direction; the diameter of the plurality of filter cartridges (221) arranged in a nested manner increases sequentially from the inside to the outside.

3. The dust control device for mining according to claim 2, characterized in that: The diameter of the multiple filter holes in the different filter cartridges (221) decreases sequentially along the airflow filtration direction; The air inlet (110) is connected to the filter device (200) via a guide pipe (500); the guide pipe (500) is connected to the filter cartridge (221) nested in the innermost layer.

4. The dust control device for mining according to claim 2, characterized in that: The innermost filter cartridge (221) is connected to the fixed cartridge; the multiple nested telescopic rods (210) are connected one-to-one with the nested filter cartridges (221) in order from the outside to the inside.

5. The dust control device for mining according to claim 1, characterized in that: After the multiple movable rods drive the corresponding filter cartridges (221) to release their nesting relationship, the radial projections of the multiple filter cartridges (221) do not overlap.

6. The dust control device for mining according to claim 1, characterized in that: The telescopic rod (210) extends upward at an angle; the telescopic rod (210) is set at an angle A with the inner wall of the dust handling box (100), where 0 < A < 90°.

7. The dust control device for mining according to claim 1, characterized in that: The telescopic rod (210) is movably sleeved with the support frame (140); the fixed cylinder is connected to a rotary motor, the output of the rotary motor is driven and connected to the telescopic rod (210), and the multiple sections of the movable rod are circumferentially linked.

8. The dust control device for mining according to claim 1, characterized in that: The sealing plate (230) is connected to the fixed cylinder; the edge of the sealing plate (230) is connected to the edge of the filter cylinder (221) with the largest diameter.

9. The dust control device for mining according to claim 1, characterized in that: The nozzle (410) is a high-pressure nozzle.

10. The dust control device for mining according to claim 1, characterized in that: The dust treatment box (100) is equipped with a sewage guide (600); the sewage guide (600) is located below the filter device (200); the bottom of the dust treatment box (100) is provided with a water outlet, and the sewage guide (600) and the water outlet are connected sequentially along the drainage direction.

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