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A kind of ventilating system of underground tunnel

A single-ended roadway and ventilation system technology, applied in the field of ventilation systems, can solve problems such as greater safety and reliability, difficulty in exhausting, increased energy consumption for equipment and maintenance costs, etc.

Active Publication Date: 2016-09-14
YILIANG CHIHONG MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the efficiency of the fan, during the ventilation process, the dirty air should be relatively moved to the effective suction range or effective range of the air cylinder. For this reason, there is an electromechanical control method to move the air cylinder forward after blasting. attempts, but there are still major problems in its safety and reliability
In addition, in order to improve the intensity of ventilation and smoke exhaust and reduce the operation cycle time, the mixed ventilation of pressure and suction is usually used, but this will lead to increased equipment and maintenance costs and increased energy consumption. Also in the middle and late stages of ventilation, there is smoke and dust near The head-on area is relatively static and balanced, and it is difficult to discharge the problem

Method used

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  • A kind of ventilating system of underground tunnel
  • A kind of ventilating system of underground tunnel
  • A kind of ventilating system of underground tunnel

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Experimental program
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Effect test

Embodiment Construction

[0022] see figure 1 , figure 2 and image 3 . The system includes ventilation facilities and detection and control facilities.

[0023]The ventilation facilities include: in the side alley 11 outside the entrance of the single-ended alleyway 10, a local fan 1 is arranged, and one end of the local fan 1 is connected with a branch fan 3 and a branch fan 4, wherein the branch fan 4 passes through the bend The cylinder 5 is placed on the top of the horizontal alley 11, and extends across the single-headed alleyway 10 to the upstream air inlet direction of the wind flow. The outlet of the branch air cylinder 3 is located in the downstream return air direction of the air flow. Road conversion valve plate 12 and its valve plate rotating pair 15, the valve plate rotating pair 15 is equipped with a valve plate drive unit 16 connected with the fan control module 13; Nearby drainage duct 6;

[0024] The detection and control facilities include a smoke sensor 7 arranged in the singl...

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Abstract

The invention relates to a ventilation system, in particular to an underground blind tunnel ventilation system. Local ventilating fans of the system are arranged in a crossdrift, one inlet-outlet of the local ventilating fans is formed in a working face range of a blind tunnel through a drainage air barrel, the other inlet-outlet is connected to a branch barrel with an opening facing the wind direction and a branch barrel with an opening opposite to the wind direction in the crossdrift through a tee joint respectively, an air channel switching valve plate for opening and closing the two branch barrels is installed at the position of the tee joint, a smoke dust sensor is arranged at the rear end of the drainage air barrel, a smoke dust sensor is also arranged at the front end close to the drainage air barrel, of the blind tunnel, and the smoke dust sensors are connected with a fan control module through data lines. The problem that traditional system smoke dust air flows are in relatively-balanced low-efficiency state is solved, smoke dust close to the head-on position performs outwards diffuses and moves to an effective suction distance or effective range of the air barrel so as to effectively improve the smoke dust explosion efficiency in blind tunnel tunneling operation work.

Description

technical field [0001] The present invention relates to a ventilation system, in particular to an underground single-head tunnel ventilation system. The technology is related to the process of ventilating and removing blasting dust in single-head tunnel excavation or limited space excavation working faces in underground ore mining and other underground engineering constructions. Background technique [0002] In underground ore mining and other underground engineering construction, single-headed excavation is a common job. At present, in most cases, explosive blasting is used to break rocks. The resulting blasting smoke, carbon monoxide, nitrogen oxides, etc. are poisonous and harmful. The gas needs to be exhausted from the working face as soon as possible through the ventilation operation and replaced by fresh air flow to provide good air environment conditions for subsequent operations. [0003] So far, the ventilation method of the excavation face of the single-headed road...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F1/00E21F5/20F04D27/00
CPCE21F1/00E21F5/20F04D27/00
Inventor 陈青黄学贵吴顺江杨奎艾选恒陆朝阳玉拾昭陈光华缪应传
Owner YILIANG CHIHONG MINING IND
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