CN103912300B - Air duct - Google Patents
Air duct Download PDFInfo
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- CN103912300B CN103912300B CN201410140408.9A CN201410140408A CN103912300B CN 103912300 B CN103912300 B CN 103912300B CN 201410140408 A CN201410140408 A CN 201410140408A CN 103912300 B CN103912300 B CN 103912300B
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- cylindrical shell
- air outlet
- verge board
- side direction
- air
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Abstract
The invention provides a kind of air duct, comprise cylindrical shell, described cylindrical shell one end is air intake, and the other end is air outlet, is provided with a verge board in described cylindrical shell; Described cylindrical shell is provided with multiple side direction air outlet, and in the shape of a spiral, described side direction air outlet is all between described air intake and described verge board in described side direction air outlet arrangement.Air duct provided by the invention, underground coal mine adopts pressure system of ventilation and is equipped with the driving face of foam or atomizing dust-removing system, by arranging verge board in inner barrel, the distinguished and admirable verge board through inner barrel, can it be made to flow to side direction air outlet distinguished and admirable for part shunting, side direction air outlet through helical arrangement becomes helical airflow low speed and blows to work plane, fresh distinguished and admirable low speed blows to work plane and suppresses dust from flying, near work plane, form air curtain stops work plane dust-contained airflow to external diffusion, and effectively prevents methane accumulation; Verge board can adjust air quantity, and said structure be easy to processing, easy for installation.
Description
Technical field
The present invention relates to underground ventilating technology, particularly relate to a kind of air duct.
Background technology
Along with the development of combining technology of adopting, the dust-producing amount of fully mechanized workface increases severely, and operating environment worsens.During as development machine coal cutting, although used synthesis dust prevention measure, field measurement dust concentration has been appointed and has so greatly been exceeded standard up to 250-300mg/m2 dust concentration, the moment threaten the safety in production in colliery and workman healthy.Underground coal mine adopts pressure system of ventilation and is equipped with the driving face of foam or atomizing dust-removing system, the fresh distinguished and admirable dispersion being unfavorable for gas when directly blowing to work plane, and easily cause dust from flying, in order to solve the problem, prior art is typically employed in that long pressure is short takes out the skeleton air duct that ventilation system adds a pull-out type portable blower and a rigidity, existing air duct can only with long press short take out ventilation system with the use of, and do not possess supply staff fresh respiratory gas stream, air quantity can not independently arbitrarily regulate, and processing, install all very complicated.
Summary of the invention
The invention provides a kind of air duct, for overcoming defect of the prior art, suppressing dust from flying, effectively preventing methane accumulation, and be easy to processing, easy for installation and can air quantity be adjusted.
The invention provides a kind of air duct, comprise cylindrical shell, described cylindrical shell one end is air intake, and the other end is air outlet, is provided with a verge board in described cylindrical shell; Described cylindrical shell is provided with multiple side direction air outlet, and in the shape of a spiral, described side direction air outlet is all between described air intake and described verge board in described side direction air outlet arrangement.
Wherein, the direction of described side direction air outlet and described cylinder inboard wall tangent.
Further, described verge board is arranged in described cylindrical shell by a tumbler, can be adjusted the angle of described verge board and described cylindrical shell cross section by this tumbler.
Further, described tumbler comprises a rotating shaft and one handle, and described rotating shaft is passed described barrel wall and coordinated with described barrel body rotation, and one end that described inner barrel is stretched in described rotating shaft is fixedly connected with described verge board; It is outside that the other end is positioned at described cylindrical shell, and be fixedly connected with described handle.
Wherein, described cylinder body outer wall is fixed with at least two suspension ring, and described suspension ring and described handle lay respectively at the relative both sides of described cylindrical shell.
Particularly, described verge board has the spigot surface for the air-flow through cylindrical shell being become helical airflow towards the one side of described air intake, and described spigot surface is curved surface.
Further, described curved surface is helicoid.
Air duct provided by the invention, underground coal mine adopts pressure system of ventilation and is equipped with the driving face of foam or atomizing dust-removing system, by arranging verge board in inner barrel, the distinguished and admirable verge board through inner barrel, can it be made to flow to side direction air outlet distinguished and admirable for part shunting, side direction air outlet through helical arrangement becomes helical airflow low speed and blows to work plane, fresh distinguished and admirable low speed blows to work plane and suppresses dust from flying, near work plane, form air curtain stops work plane dust-contained airflow to external diffusion, and effectively prevents methane accumulation; Verge board can adjust air quantity, and said structure be easy to processing, easy for installation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the right view of embodiment of the present invention middle cylinder body;
Fig. 3 is the top view of embodiment of the present invention middle cylinder body.
Detailed description of the invention
The invention provides a kind of air duct, as shown in Figure 1, Figure 2, Figure 3 shows, comprise cylindrical shell 1, cylindrical shell 1 one end is air intake 11, and the other end is air outlet 12, is provided with a verge board 2 in cylindrical shell 1; Cylindrical shell 1 is provided with multiple side direction air outlet 3, and side direction air outlet 3 arranges in the shape of a spiral, and side direction air outlet 3 is all between air intake 11 and verge board 2.
Air duct provided by the invention, underground coal mine adopts pressure system of ventilation and is equipped with the driving face of foam or atomizing dust-removing system, by arranging verge board in inner barrel, the distinguished and admirable verge board through inner barrel, can it be made to flow to side direction air outlet 3 distinguished and admirable for part shunting, side direction air outlet 3 through helical arrangement becomes helical airflow low speed and blows to work plane, fresh distinguished and admirable low speed blows to work plane and suppresses dust from flying, near work plane, form air curtain stops work plane dust-contained airflow to external diffusion, and effectively prevents methane accumulation; Verge board 2 can adjust air quantity, and said structure be easy to processing, easy for installation.
Cylindrical shell 1 is fire-retardant, anlistatig flexible air duct or irony air duct, and side direction air outlet 3 curl is located on cylindrical shell 1 wall, forms helical airflow and blows out forward, distinguished and admirable generation wall attachment effect through air intake 11 distinguished and admirable after side direction air outlet 3; The verge board 2 being provided with adjustable tape spool in cylindrical shell 1 regulates spanner to be connected in outside, can regulate allocation of the amount of air according to actual needs.Air intake 11 place is provided with gas skirt 10, and gas skirt 10 connects bellows 4 and face shield 5 successively, and face shield 5 can supply and relate to dirt personnel eupnea.Effectively can not only reduce the dust concentration of work plane, improve worker's work situation, and ensure that the demand of work plane operating personnel to fresh air, decrease the harm of dust to worker's health.Its structure is simple, and installing/dismounting, distinguished and admirable guiding and allocation of the amount of air control easy, safe and reliable, and durable, cost is low.Suitable penetration and promotion application.
As the preferred embodiment of above-described embodiment, as shown in Figure 2, the direction of side direction air outlet 3 and cylindrical shell 1 inwall tangent.Cylindrical shell 1 is cylindrical, and distinguished and admirable being easy to of discharging through side direction air outlet 3 forms helical form, and wall attachment effect is better, and is easy to processing.
In above-described embodiment, verge board 2 is arranged in cylindrical shell 1 by a tumbler, can be adjusted the angle of verge board 2 and cylindrical shell cross section by this tumbler.Provide a kind of specific embodiments below:
Tumbler comprises a rotating shaft 21 and one handle 22, and rotating shaft 21 is passed barrel wall and is rotatably assorted with cylindrical shell 1, and one end that inner barrel is stretched in rotating shaft 21 is fixedly connected with verge board 2; The other end is positioned at cylindrical shell outside, and is fixedly connected with handle 22.By rotating the handle 22 being positioned at cylindrical shell 1 outside, just verge board 2 can be rotated, so the angle between adjustment verge board 2 and cylindrical shell cross section, the air output of adjustment cylindrical shell air outlet 12 and the air output of side direction air outlet 3, structure is simple, is easy to operation and makes; In addition, the tumbler of other structures can also be adopted to realize the rotation of verge board 2, such as bar linkage structure etc.
When fully-mechanized digging machine of meeting head on cuts rock, by the angle of verge board regulating handle controllable register, to reduce the wind supply quantity of meeting head on, increase the air output of air duct side and go out wind pressure, the distinguished and admirable hole of leaking informaton by air duct side of the part namely in air duct sprays with very high speed.Regulate the verge board distinguished and admirable part of axis that booster can be made be pressed into change into towards portion of side, tunnel and move forward distinguished and admirable.Thisly distinguished and admirablely effectively to completely cut off the Chan Chen district that meets head on, to stop dust to the diffusion of rear, tunnel, impel most dust to be inhaled into deduster, thus substantially increase the dustfall efficiency of dedusting fan.
As the improvement further of above-mentioned enforcement, as shown in Figure 3, dust has been swung in order to avoid making distinguished and admirable directly the blowing on the wall of tunnel of discharging through cylindrical shell air outlet 12, verge board 2 has the spigot surface 23 for the air-flow through cylindrical shell being become helical airflow towards the one side of air intake 11, and spigot surface 23 is curved surface.
As preferred embodiment, as shown in Figure 3, curved surface is helicoid.Distinguished and admirable after the spigot surface of verge board 2 through air intake 11, and form helical airflow behind gap between cylindrical shell 1 inwall and blow out backward, distinguished and admirable generation wall attachment effect.
In above-described embodiment, for the ease of hanging, cylindrical shell 1 outer wall is fixed with at least two suspension ring 13, and suspension ring 13 and handle 22 lay respectively at the relative both sides of cylindrical shell 1.By gas skirt 10 one end access forced ventilation machine drum body end, hang in side, tunnel by suspension ring 13, rotate regulating handle 22 and control face air volume, connect bellows 4 and face shield 5, wear face shield.
Effectively can not only reduce the dust concentration of work plane, improve worker's work situation, and ensure that the demand of work plane operating personnel to fresh air, decrease the harm of dust to worker's health.Its structure is simple, and installing/dismounting, distinguished and admirable guiding and allocation of the amount of air control easy, safe and reliable, durable, and cost is low, and suitable penetration and promotion application, dust-proof effect is better.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. an air duct, comprises cylindrical shell, it is characterized in that, described cylindrical shell one end is air intake, and the other end is air outlet, is provided with a verge board in described cylindrical shell; Described cylindrical shell is provided with multiple side direction air outlet, and in the shape of a spiral, described side direction air outlet is all between described air intake and described verge board in described side direction air outlet arrangement;
Described verge board is arranged in described cylindrical shell by a tumbler, can be adjusted the angle of described verge board and described cylindrical shell cross section by this tumbler;
Described tumbler comprises a rotating shaft and one handle, and described rotating shaft is passed described barrel wall and coordinated with described barrel body rotation, and one end that described inner barrel is stretched in described rotating shaft is fixedly connected with described verge board; It is outside that the other end is positioned at described cylindrical shell, and be fixedly connected with described handle;
Described verge board has the spigot surface for the air-flow through cylindrical shell being become helical airflow towards the one side of described air intake, and described spigot surface is curved surface.
2. air duct according to claim 1, is characterized in that, direction and the described cylinder inboard wall of described side direction air outlet are tangent.
3. air duct according to claim 1, is characterized in that, described cylinder body outer wall is fixed with at least two suspension ring, and described suspension ring and described handle lay respectively at the relative both sides of described cylindrical shell.
4. air duct according to claim 1, is characterized in that, described curved surface is helicoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140408.9A CN103912300B (en) | 2014-04-09 | 2014-04-09 | Air duct |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410140408.9A CN103912300B (en) | 2014-04-09 | 2014-04-09 | Air duct |
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| Publication Number | Publication Date |
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| CN103912300A CN103912300A (en) | 2014-07-09 |
| CN103912300B true CN103912300B (en) | 2016-03-02 |
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| CN201410140408.9A Active CN103912300B (en) | 2014-04-09 | 2014-04-09 | Air duct |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196534B (en) * | 2014-08-19 | 2016-05-18 | 山东科技大学 | A kind of 3 D multi-directional eddy flow air curtain device for reducing dust and method for fully mechanized workface |
| CN104948218A (en) * | 2015-05-25 | 2015-09-30 | 北京科技大学 | Adjustable wall attaching air duct used for comprehensive tunneling face of mine |
| CN105545346B (en) * | 2016-01-28 | 2023-09-15 | 安徽理工大学 | Foam dust removal device with adjustable direction for underground coal mine |
| CN109736804B (en) * | 2019-01-15 | 2020-08-21 | 山东科技大学 | Fully-mechanized excavation face pressure induced draft automatic cooperative regulation and control system and use method thereof |
| CN112901238B (en) * | 2021-02-03 | 2023-03-21 | 山东科技大学 | Intelligent regulation and control and self-moving device and method for dust control air curtain |
| CN116201592A (en) * | 2023-03-14 | 2023-06-02 | 山东科技大学 | Intelligent wind-resistant dust control device and dust control method for tunneling surface |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4625631A (en) * | 1985-01-16 | 1986-12-02 | Mobil Oil Corporation | Method and apparatus for extending ventilation ductwork |
| CN201334919Y (en) * | 2009-01-09 | 2009-10-28 | 中国矿业大学 | Flexible wall-attached air duct |
| CN102416228A (en) * | 2011-08-01 | 2012-04-18 | 枣庄矿业集团高庄煤业有限公司 | Driver breathing apparatus of roadheader |
| CN203145986U (en) * | 2013-03-12 | 2013-08-21 | 河南理工大学 | Compressed air diverting wall-attached air ventilator capable of adjusting air volume |
| CN203239378U (en) * | 2013-05-21 | 2013-10-16 | 山东金科星机电有限公司 | Novel mining wall attachment air duct |
| CN203769825U (en) * | 2014-04-09 | 2014-08-13 | 淮南矿业(集团)有限责任公司 | Wall attachment air duct |
-
2014
- 2014-04-09 CN CN201410140408.9A patent/CN103912300B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4625631A (en) * | 1985-01-16 | 1986-12-02 | Mobil Oil Corporation | Method and apparatus for extending ventilation ductwork |
| CN201334919Y (en) * | 2009-01-09 | 2009-10-28 | 中国矿业大学 | Flexible wall-attached air duct |
| CN102416228A (en) * | 2011-08-01 | 2012-04-18 | 枣庄矿业集团高庄煤业有限公司 | Driver breathing apparatus of roadheader |
| CN203145986U (en) * | 2013-03-12 | 2013-08-21 | 河南理工大学 | Compressed air diverting wall-attached air ventilator capable of adjusting air volume |
| CN203239378U (en) * | 2013-05-21 | 2013-10-16 | 山东金科星机电有限公司 | Novel mining wall attachment air duct |
| CN203769825U (en) * | 2014-04-09 | 2014-08-13 | 淮南矿业(集团)有限责任公司 | Wall attachment air duct |
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| CN103912300A (en) | 2014-07-09 |
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