Dust control device

Abstract

The utility model provides a dust control device, which comprises an air supply barrel, an air inlet and an air outlet, the air distribution structure is arranged corresponding to the air outlet, a gap is formed between the air distribution structure and the air supply barrel, air distribution holes are formed in the air distribution structure, and the diameter of the air distribution holes can be adjusted so as to adjust the amount of air passing through the air distribution holes. Through the technical scheme provided by the invention, the problem that a dust control device in the prior art is tedious in use process can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust control devices, and more specifically, to a dust control device. Background Art

[0002] Among them, during the coal mine production process, a large amount of dust is generated during tunneling construction. The most effective technical measure for controlling the dust in the tunneling working face is the long-pressure and short-extraction ventilation and dust control technology. The long-pressure and short-extraction ventilation and dust control technical measures include two parts: dust control and dust extraction by the dust extraction fan. Effective air control and dust control are the premise and important guarantee for the high-efficiency dust reduction of the long-pressure and short-extraction ventilation and dust control technology.

[0003] In the prior art, the air control and dust control method is usually to connect a section of air distribution and dust control air duct at the end of the positive-pressure air supply air duct of the working face. As the working face advances, when continuing the air supply air duct, it is necessary to first remove the air distribution and dust control air duct, then connect the air supply air duct, and then connect the air distribution and dust control air duct to the very end of the air supply air duct, and so on. However, with such a setting, the air distribution and dust control air duct is relatively cumbersome during use, and the workload of the staff is large when continuing the air supply air duct, thus increasing the labor intensity and labor cost of the staff. Summary of the Utility Model

[0004] The utility model provides a dust control device to solve the problem of cumbersome use of the dust control device in the prior art.

[0005] The utility model provides a dust control device, which includes: an air supply air duct with a gas outlet; an air distribution structure corresponding to the gas outlet, and there is a gap between the air distribution structure and the air supply air duct. The air distribution structure is provided with air distribution holes, and the diameter of the air distribution holes is adjustable to adjust the air volume passing through the air distribution holes.

[0006] Further, the air distribution structure includes: a frame with an installation hole in the middle; a connecting cylinder with air distribution holes and an air inlet and an air outlet arranged oppositely. Both the air inlet and the air outlet are communicated with the air distribution holes. The air inlet is fixed in the installation hole, the air inlet is arranged opposite to the gas outlet, and the diameter of the air outlet is adjustable.

[0007] Further, the connecting cylinder is made of a flexible material, and a drawstring is arranged along the circumference of the air outlet. The drawstring can be loosened and tightened to adjust the area of the air outlet.

[0008] Further, the frame includes: a frame body with a plurality of weight-reducing holes and installation holes; a covering member covering the plurality of weight-reducing holes, and the covering member is made of a flexible material.

[0009] Furthermore, the frame body includes: an outer frame and an inner frame, the inner frame having mounting holes; a plurality of connecting rods disposed between the outer frame and the inner frame, one end of each connecting rod being connected to the outer frame and the other end being connected to the inner frame, and a weight-reducing hole being formed among the outer frame, the inner frame and the connecting rods, and a covering member being disposed between the outer frame and the inner frame.

[0010] Furthermore, the outer frame is of a square structure and the inner frame is of a circular structure.

[0011] Furthermore, the side length of the outer frame is 1.1 to 1.2 times the diameter of the gas outlet.

[0012] Furthermore, the area of the mounting holes is set to be to between.

[0013] Furthermore, the distance between the gas outlet and the air distribution structure is set to be between 0.8 m and 1 m.

[0014] Furthermore, the dust control device further includes a dust removal fan disposed close to the air distribution structure, and the dust removal fan is capable of sucking the dust-containing air flow.

[0015] Applying the technical solution of the present utility model, the air supply air duct and the air distribution structure are separately provided, and there is a gap between the air distribution structure and the air supply air duct. With such a setting, as the working face advances, when continuing the air supply air duct, there is no need to disassemble the air distribution dust control air duct. It is only necessary to remove the air distribution structure from the roof and then re-hang it, and then connect the air supply air duct, which simplifies the operation steps of the dust control device, reduces the workload of the staff when continuing the air supply air duct, and further reduces the labor intensity and labor cost of the staff. Moreover, the staff can adjust the diameter of the air distribution holes according to the needs, so that the air volume and air speed directly blowing towards the heading face of the tunneling face can be adjusted according to the needs, reducing local dust flying and improving the versatility of the dust control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The schematic diagrams in the specification forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 shows the structural schematic diagram of the air distribution structure provided by the present utility model;

[0018] Figure 2 shows the structural schematic diagram of the dust control device provided by the present utility model.

[0019] Among them, the above-mentioned drawings include the following reference numerals:

[0020] 10. Air supply air duct;

[0021] 11. Gas outlet;

[0022] 20. Air distribution structure;

[0023] 21. Frame;

[0024] 211. Frame body;

[0025] 2111. Outer frame;

[0026] 2112. Inner frame;

[0027] 21121. Mounting hole;

[0028] 2113. Weight reduction hole;

[0029] 212. Covering member;

[0030] 213. Connecting rod;

[0031] 22. Connecting cylinder;

[0032] 221. Air distribution hole;

[0033] 222. Air outlet;

[0034] 223. Drawstring. Detailed implementation manner

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0036] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides a dust control device, which includes an air supply air duct 10 and an air distribution structure 20. The air supply air duct 10 has a gas outlet 11. The air distribution structure 20 is correspondingly arranged with the gas outlet 11, and there is a gap between the air distribution structure 20 and the air supply air duct 10. An air distribution hole 221 is provided on the air distribution structure 20, and the diameter of the air distribution hole 221 is adjustable to adjust the air volume passing through the air distribution hole 221. Among them, in this application, the air distribution structure 20 is suspended on the roadway roof.

[0037] Applying the technical solution of the present application, the air supply duct 10 and the air distribution structure 20 are separately arranged, and there is a gap between the air distribution structure 20 and the air supply duct 10. With such an arrangement, as the working face advances, when continuing the air supply duct 10, there is no need to disassemble the air distribution and dust control duct. It is only necessary to remove the air distribution structure 20 from the roof and re-hang it, and then connect the air supply duct 10, which simplifies the operation steps of the dust control device, reduces the workload of the staff when continuing the air supply duct 10, and further reduces the labor intensity and labor cost of the staff. Moreover, the staff can adjust the diameter of the air distribution holes 221 according to requirements, so that the air volume and air speed directly blowing towards the heading face of the tunneling face can be adjusted according to requirements, reducing local dust flying and improving the versatility of the dust control device.

[0038] Among them, in the present application, the air distribution structure 20 is suspended on the roadway roof by a connection structure. The connection structure includes a chain and a hook. One end of the chain is detachably connected to the air distribution structure 20, and a hook is provided at the other end of the chain. The hook can be hung on the protective net on the inner wall of the roadway. With such an arrangement, it is convenient to operate when removing and hanging the air distribution structure 20.

[0039] Furthermore, in the present application, the dust control device includes three connection structures, two of which are suspended on the roadway roof. One end of the other connection structure is detachably connected to the side wall of the air distribution structure 20, and the hook of this connection structure is detachably connected to the protective net on the side wall of the roadway.

[0040] Optionally, the staff can also set hanging points on the side wall of the roadway so that the hook of the connection structure is connected to the hanging points. A clamping member can be provided at the end of the chain, and the clamping member can clamp the air distribution structure 20. The staff can select a suitable structure according to requirements and on-site construction conditions.

[0041] Among them, the air supply duct 10 blows directly towards the heading face of the tunneling face, resulting in too high local air speed at the heading face of the tunneling face, and then causing dust to be quickly blown up and rapidly dispersed with the air flow, which is not conducive to subsequent dust removal work. Using the air distribution structure 20 can reduce the air volume and air speed locally blowing directly towards the heading face of the tunneling face, making the air flow blow more evenly towards the entire working face of the heading face of the tunneling face, and thus avoiding the accumulation of toxic and harmful gases in dead corners due to the lack of air flow locally at the heading face of the tunneling face.

[0042] Specifically, in the present application, under the action of the air distribution structure 20, a small part of the air flow blows directly towards a part of the area at the heading face of the tunneling face through the air distribution holes 221, and most of the other air flow is dispersed along the outer frame of the air distribution structure 20 to other areas of the heading face of the tunneling face.

[0043] With such a setting, the air distribution structure 20 can reduce the air volume and wind speed of the air supply duct 10 blowing directly towards the heading face of the tunneling face, reduce the local wind speed at the heading face of the tunneling face, make the air flow reaching the entire heading face of the tunneling face relatively gentle and uniform, and reduce local dust flying; on the other hand, the large-area forward air flow plays the role of a fresh air barrier at the heading face of the tunneling face, controls the escape and diffusion of dust at the heading face of the tunneling face towards the rear space, and ensures the dust control effect of the dust control device.

[0044] Furthermore, in the present application, by adjusting the diameter of the air distribution holes 221, the air volume distribution passing through the air distribution holes 221 and the outer frame of the air distribution structure 20 can be adjusted, so that the air distribution structure 20 can adapt to the actual construction environment and improve the applicability of the air distribution structure 20.

[0045] As Figure 2 shown, the air distribution structure 20 includes a frame 21 and a connecting cylinder 22. The middle part of the frame 21 has an installation hole 21121. The connecting cylinder 22 has air distribution holes 221 and an air inlet and an air outlet 222 arranged oppositely. Both the air inlet and the air outlet 222 are communicated with the air distribution holes 221. The air inlet is fixed in the installation hole 21121, the air inlet is arranged oppositely to the gas outlet 11, and the diameter of the air outlet 222 is adjustable.

[0046] With such a setting, it is convenient to assemble the frame 21 and the connecting cylinder 22, the structure is simple, and the operation is convenient. Moreover, when the diameter of the air outlet 222 is adjusted, the diameter of the air distribution holes 221 changes accordingly. With such a setting, it is convenient to adjust the diameter of the air distribution holes 221.

[0047] Among them, the connecting cylinder 22 is made of a flexible material. With such a setting, it is convenient to install the connecting cylinder 22, and at the same time, the mass of the connecting cylinder 22 can be reduced, and the cost of the connecting cylinder 22 can be lowered. Moreover, in the present application, the connecting cylinder 22 is made of a flame-retardant material to prevent the connecting cylinder 22 from being burned and improve the service life of the connecting cylinder 22.

[0048] Specifically, a drawstring 223 is arranged along the circumference of the air outlet 222. The drawstring 223 can be relaxed and tightened to adjust the area of the air outlet 222. With such a setting, during the process of adjusting the drawstring 223, the diameter of the air outlet 222 can be adjusted, and then the area of the air outlet 222 can be adjusted. The structure is simple and convenient for the staff to operate. At the same time, with the above structure, the processing cost of the dust control device can be further reduced, and it is convenient to process the connecting cylinder 22.

[0049] Furthermore, the frame 21 includes a frame body 211 and a covering member 212. The frame body 211 has a plurality of weight-reducing holes 2113 and an installation hole 21121. With such a setting, the weight of the frame body 211 can be reduced, it is convenient to hang the frame body 211, avoid the frame body 211 from falling, and maintain the stability of the frame body 211. Moreover, with the above structure, it is convenient to install the connecting cylinder 22.

[0050] The covering member 212 covers a plurality of weight-reducing holes 2113, and the covering member 212 is made of a flexible material. With this arrangement, it is convenient to install the covering member 212, and at the same time, the weight of the air distribution structure 20 can be further reduced.

[0051] Among them, in the present application, the covering member 212 is made of a flame-retardant material to prevent the frame 21 from burning and improve the service life of the frame 21. Optionally, the covering member 212 and the connecting cylinder 22 can be made of the same material.

[0052] Specifically, the frame body 211 includes an outer frame 2111, an inner frame 2112, and a plurality of connecting rods 213. The inner frame 2112 has mounting holes 21121. The plurality of connecting rods 213 are arranged between the outer frame 2111 and the inner frame 2112. One end of the connecting rod 213 is connected to the outer frame 2111, and the other end of the connecting rod 213 is connected to the inner frame 2112. Weight-reducing holes 2113 are formed among the outer frame 2111, the inner frame 2112, and the connecting rods 213. The covering member 212 is arranged between the outer frame 2111 and the inner frame 2112. With this arrangement, it is convenient to process the frame body 211, and the staff can select appropriate materials at the construction site according to requirements.

[0053] Furthermore, in the present application, the frame body 211 has four connecting rods 213, and the four connecting rods 213 are evenly arranged between the outer frame 2111 and the inner frame 2112. With this arrangement, the stability of the frame body 211 can be ensured, and damage to the frame body 211 can be avoided.

[0054] Among them, the outer frame 2111 is of a square structure. With this arrangement, it is convenient to process the outer frame 2111 and at the same time convenient for the diffusion of the air flow.

[0055] The inner frame 2112 is of a circular structure. With this arrangement, it is convenient to fixedly connect the connecting cylinder 22 and at the same time convenient to adjust the air outlet area of the connecting cylinder 22.

[0056] Specifically, the side length of the outer frame 2111 is 1.1 times to 1.2 times the diameter of the gas outlet 11.

[0057] With such a setting, when the side length of the outer frame 2111 is less than 1.1 times the diameter of the gas outlet 11, the diffusion range of the air flow by the outer frame 2111 is limited, resulting in a poor effect of the air flow dispersing along the outer edge of the outer frame 2111; when the side length of the outer frame 2111 is greater than 1.2 times the diameter of the gas outlet 11, the air distribution structure 20 will block most of the air flow, resulting in the dust in the area where the air distribution structure 20 projects to the heading face of the tunneling face not being easily blown, resulting in a poor dust control effect of the dust control device; therefore, when the side length of the outer frame 2111 is set between 1.1 times and 1.2 times the diameter of the gas outlet 11, the diffusion range of the air flow by the outer frame 2111 can be ensured, and at the same time, the blockage of the flow of the divided air by the air distribution structure 20 can be avoided, ensuring the air distribution effect of the air distribution structure 20.

[0058] Optionally, the side length of the outer frame 2111 can be 1.1 times, 1.15 times or 1.2 times the diameter of the gas outlet 11. In this application, the side length of the outer frame 2111 is 1.1 times the diameter of the gas outlet 11.

[0059] Furthermore, the area of the mounting hole 21121 is set between and of the area of the frame 21.

[0060] With such a setting, when the area of the mounting hole 21121 is less than of the area of the frame 21, the adjustment of the air outlet area of the air outlet 222 is limited, reducing the versatility of the air distribution structure 20; when the area of the mounting hole 21121 is greater than of the area of the frame 21, this will cause waste of the connecting cylinder 22, increase the production cost of the connecting cylinder 22, and at the same time be unfavorable to the stability of the air distribution structure 20; therefore, the area of the mounting hole 21121 is set between and of the area of the frame 21, so that the versatility of the air distribution structure 20 can be improved, and at the same time the production cost of the connecting cylinder 22 can be reduced, and the stability of the air distribution structure 20 can be improved.

[0061] Optionally, the area of the mounting hole 21121 can be or of the area of the frame 21. In this application, the area of the mounting hole 21121 is

[0062] Among them, the distance between the gas outlet 11 and the air distribution structure 20 is set between 0.8 m and 1 m.

[0063] With such a setting, when the distance between the gas outlet 11 and the air distribution structure 20 is less than 0.8 m, the air flow is not smooth, resulting in a poor dispersion effect of the air flow; when the distance between the gas outlet 11 and the air distribution structure 20 is greater than 1 m, the diffusion range of the air flow along the outer edge of the outer frame 2111 is limited, leading to a poor diffusion effect of the air diversion. Therefore, the distance between the gas outlet 11 and the air distribution structure 20 is set between 0.8 m and 1 m, which can not only ensure the smoothness of the air flow but also ensure the air distribution effect of the air distribution structure 20 on the air flow.

[0064] Optionally, the distance between the gas outlet 11 and the air distribution structure 20 can be set to 0.8 m, 0.9 m or 1 m. In this application, the distance between the gas outlet 11 and the air distribution structure 20 is set to 0.9 m.

[0065] Specifically, the dust control device further includes a dust removal fan, which is arranged close to the air distribution structure 20 and can suck the dust-containing air flow. With such a setting, it is beneficial for the dust removal fan to quickly suck the dust-containing air flow at the dust suction port extending to the heading face of the tunneling face and enter the dust removal fan for purification treatment, so as to effectively remove dust.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0067] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0068] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0069] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0070] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional declaration, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0071] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, various changes and modifications can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dust control device, characterized in that, The dust control device includes: An air supply duct (10), the air supply duct (10) having a gas outlet (11); An air distribution structure (20), which is correspondingly arranged with the gas outlet (11), and there is a gap between the air distribution structure (20) and the air supply duct (10). The air distribution structure (20) is provided with air distribution holes (221), and the diameter of the air distribution holes (221) is adjustable to adjust the air volume passing through the air distribution holes (221).

2. The dust control device according to claim 1, characterized in that, The air distribution structure (20) includes: A frame (21), the middle part of the frame (21) having a mounting hole (21121); A connecting cylinder (22), the connecting cylinder (22) having the air distribution holes (221) and an air inlet and an air outlet (222) arranged oppositely. Both the air inlet and the air outlet (222) are communicated with the air distribution holes (221). The air inlet is fixed in the mounting hole (21121), the air inlet is arranged oppositely to the gas outlet (11), and the diameter of the air outlet (222) is adjustable.

3. The dust control device according to claim 2, characterized in that, The connecting cylinder (22) is made of a flexible material, and a drawstring (223) is arranged along the circumference of the air outlet (222). The drawstring (223) can be loosened and tightened to adjust the area of the air outlet (222).

4. The dust control device according to claim 2, wherein The frame (21) includes: A frame body (211), the frame body (211) having a plurality of weight-reducing holes (2113) and the mounting hole (21121); A covering member (212), covering the plurality of weight-reducing holes (2113), the covering member (212) being made of a flexible material.

5. The dust control device according to claim 4, characterized in that, The frame body (211) includes: An outer frame (2111) and an inner frame (2112), the inner frame (2112) having the mounting hole (21121); A plurality of connecting rods (213), arranged between the outer frame (2111) and the inner frame (2112). One end of the connecting rod (213) is connected to the outer frame (2111), and the other end of the connecting rod (213) is connected to the inner frame (2112). The weight-reducing holes (2113) are formed among the outer frame (2111), the inner frame (2112) and the connecting rods (213), and the covering member (212) is arranged between the outer frame (2111) and the inner frame (2112).

6. The dust control device according to claim 5, wherein The outer frame (2111) is of a square structure, and the inner frame (2112) is of a circular structure.

7. The dust control device according to claim 6, characterized in that, The side length of the outer frame (2111) is 1.1 times to 1.2 times the diameter of the gas outlet (11).

8. The dust control device according to claim 2, wherein The area of the mounting hole (21121) is set to be between and of the area of the frame (21).

9. The dust control device according to claim 1, wherein The distance between the gas outlet (11) and the air distribution structure (20) is set between 0.8 m and 1 m.

10. The dust control device according to claim 1, characterized in that, The dust control device further includes a dust removal fan, the dust removal fan being arranged close to the air distribution structure (20), and the dust removal fan being capable of sucking the dust-containing air flow.

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