CN203783623U - Extension type multi-section air duct of coal mine excavation working face - Google Patents
Extension type multi-section air duct of coal mine excavation working face Download PDFInfo
- Publication number
- CN203783623U CN203783623U CN201320853891.6U CN201320853891U CN203783623U CN 203783623 U CN203783623 U CN 203783623U CN 201320853891 U CN201320853891 U CN 201320853891U CN 203783623 U CN203783623 U CN 203783623U
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- air duct
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- wind
- section
- hard ventilating
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Abstract
The utility model discloses an extension type multi-section air duct of a coal mine excavation working face. The extension type multi-section air duct is composed of three hard air duct bodies and an cambered-surface wind-stopping circular plate, the three hard and circular air duct bodies and the cambered-surface wind-stopping circular plate are arranged on one axis at a certain distance interval, and the diameters of the three hard air duct bodies and the cambered-surface wind-stopping circular plate are gradually decreased; horn mouths are formed in the tail ends of the hard air duct bodies, and backwards-slanting wind-stopping rings are arranged at the head ends of the second hard air duct body and the third hard air duct body; hanging hooks are arranged on the top faces of the three hard air duct bodies and the cambered-surface wind-stopping circular plate; wind pressure detection holes are formed in the bottom faces of the three hard air duct bodies. By means of the extension type multi-section air duct, under the flow guiding effects of the horn mouths and the wind-stopping rings, three air walls are formed on the working face, then under the negative pressure effect of a dust exhausting fan of the excavation working face, dust is controlled within a short scope of the working face, escaping of dust-containing air flow is restrained, the roadway operation environment is improved, and the working environment of the working face is improved.
Description
Technical field
Automation examination equipment under the utility model planned well.
Background technology
In the driving face manufacturing process of down-hole, producing a large amount of dust, how to control dust diffusion, make to control dirt effect more obvious, reduce operating location dust concentration, is that a line worker creates good working environment, is the long-term problem of exploring of mine always.Traditional forced ventilation air duct jet effective range is similar to apart from work plane under the fringe conditions of tunnel
position, there are an efflux angle α in distinguished and admirable border and lane side, distinguished and admirable one-tenth turbulent condition in fluerics, wind speed is large, produces a large amount of dust in fully mechanized workface manufacturing process, and air duct heteropleural is that dust-laden is distinguished and admirable, expands with distinguished and admirable range of scatter, is unfavorable for driving face dedusting.
Summary of the invention
In order to overcome the deficiency of existing draft type, the utility model designs a kind of driving face in coal mine extension type more piece air duct.
A kind of driving face in coal mine extension type more piece air duct, it is characterized in that, it is made up of first segment, second section, Section of three hard ventilating tube and cambered surface plectane that keeps out the wind successively, three joint hard circles air ducts and the cambered surface plectane space certain distance that keeps out the wind arranges on an axis, and three to save the keep out the wind diameter of plectane of hard ventilating tubes and cambered surface descending step by step; Wherein the end of three joint hard ventilating tubes is equipped with horn mouth, and the head end of second section hard ventilating tube and Section of three hard ventilating tube is equipped with sweptback wind loop; Three joint hard ventilating tube length are 2-3 rice, the diameter of first segment hard ventilating tube is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube diameter is less than 0.1 meter of first segment hard ventilating tube diameter, and Section of three hard ventilating tube diameter is less than 0.1 meter of second section hard ventilating tube diameter.
The keep out the wind end face of plectane of described three joint hard ventilating tubes and cambered surface is provided with hanging hook, for hanging at back or stay cord.
The blast that the bottom surface of three described joint hard ventilating tubes is provided with diameter 10mm detects hole, for measuring every joint wind tube wind quantity.
When use, in tunnel, central deck is drawn hanging rope, three joint hard ventilating tubes and the cambered surface plectane that keeps out the wind is hung section by section on the stay cord of tunnel, and should be ensured on an axis, more flexible traditional forced ventilation machine air duct is docked with first segment hard ventilating tube.
The utility model advantage is: because prosthomere is greater than the diameter of deutomerite, and leave certain distance between the two, the formation gap of leaking out, and outlet is provided with the cambered surface plectane that keeps out the wind, under horn mouth and wind loop guide functions, form three road air walls at work plane, add the suction function of fully mechanized workface dedusting fan, dust Control, in the short scope of work plane, is suppressed to the loss of dust-contained airflow, improve tunnel operating environment, improve work plane operating environment.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model embodiment.
Marginal data, 1-first segment hard ventilating tube, 2-second section hard ventilating tube, Section of three hard ventilating tube of 3-, the 4-cambered surface plectane that keeps out the wind, 5-horn mouth, 6-wind loop, 7-hanging hook, 8-back, 9-blast detects hole.
Detailed description of the invention
A kind of driving face in coal mine extension type more piece air duct, it is made up of three joint hard ventilating tubes and cambered surface plectane 4 that keeps out the wind, three joint hard ventilating tubes are respectively first segment hard ventilating tube 1, second section hard ventilating tube 2 and Section of three hard ventilating tube 3, three joint hard circles air ducts and the cambered surface plectane 4 space certain distances that keep out the wind arrange on an axis, and the diameter of first segment hard ventilating tube 1, second section hard ventilating tube 2, Section of three hard ventilating tube 3 three save and cambered surface is kept out the wind plectane 4 is descending step by step; Wherein the end of three joint hard ventilating tubes is equipped with horn mouth 5, and the head end of second section hard ventilating tube 2 and Section of three hard ventilating tube 3 is equipped with sweptback wind loop 6; Three joint hard ventilating tube length are 2-3 rice, the diameter of first segment hard ventilating tube 1 is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube 2 diameters are less than 0.1 meter of first segment hard ventilating tube 1 diameter, and Section of 33 hard ventilating tube diameter is less than 0.1 meter of second section hard ventilating tube 2 diameter.
Described three joint hard ventilating tubes and cambered surface are kept out the wind on the end face of plectane 4 and are equipped with hanging hook 7, for hanging on back 8 or stay cord.
The blast that is equipped with diameter 10mm on the bottom surface of three described joint hard ventilating tubes detects hole 9, for measuring every joint wind tube wind quantity.
Claims (1)
1. a driving face in coal mine extension type more piece air duct, it is characterized in that, it is made up of first segment, second section, Section of three hard ventilating tube and cambered surface plectane that keeps out the wind successively, three joint hard circles air ducts and the cambered surface plectane space certain distance that keeps out the wind arranges on an axis, and three to save the keep out the wind diameter of plectane of hard ventilating tubes and cambered surface descending step by step; Wherein the end of three joint hard ventilating tubes is equipped with horn mouth, and the head end of second section hard ventilating tube and Section of three hard ventilating tube is equipped with sweptback wind loop; Three joint hard ventilating tube length are 2-3 rice, the diameter of first segment hard ventilating tube is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube diameter is less than 0.1 meter of first segment hard ventilating tube diameter, and Section of three hard ventilating tube diameter is less than 0.1 meter of second section hard ventilating tube diameter;
The keep out the wind end face of plectane of described three joint hard ventilating tubes and cambered surface is provided with hanging hook, for hanging at back or stay cord;
The blast that the bottom surface of three described joint hard ventilating tubes is provided with diameter 10mm detects hole, for measuring every joint wind tube wind quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853891.6U CN203783623U (en) | 2013-12-24 | 2013-12-24 | Extension type multi-section air duct of coal mine excavation working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853891.6U CN203783623U (en) | 2013-12-24 | 2013-12-24 | Extension type multi-section air duct of coal mine excavation working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783623U true CN203783623U (en) | 2014-08-20 |
Family
ID=51319823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853891.6U Expired - Fee Related CN203783623U (en) | 2013-12-24 | 2013-12-24 | Extension type multi-section air duct of coal mine excavation working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569714A (en) * | 2016-03-03 | 2016-05-11 | 太原理工大学 | Ventilation device for underground coal mine chamber or shortwall working face |
| CN106090960A (en) * | 2016-08-15 | 2016-11-09 | 河南理工大学 | Not inverted ventilation chimney |
-
2013
- 2013-12-24 CN CN201320853891.6U patent/CN203783623U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569714A (en) * | 2016-03-03 | 2016-05-11 | 太原理工大学 | Ventilation device for underground coal mine chamber or shortwall working face |
| CN106090960A (en) * | 2016-08-15 | 2016-11-09 | 河南理工大学 | Not inverted ventilation chimney |
| CN106090960B (en) * | 2016-08-15 | 2018-04-24 | 河南理工大学 | Not inverted ventilation chimney |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |