CN2690598Y

CN2690598Y - Induced draught distributing valve in the pit of mine

Info

Publication number: CN2690598Y
Application number: CN 200420034986
Authority: CN
Inventors: 李树光; 李文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-04
Filing date: 2004-02-04
Publication date: 2005-04-06
Anticipated expiration: 2014-02-04

Abstract

The utility model discloses an induced draught distributing valve in the pit of mine. The inner side edges of the front and the back transversal valve plates are respectively fixed on the front and the back ends of a middle connecting plate. The outer side edges of the front and the back transversal valve plates are respectively provided with a mounting plate. The hermetic door under the middle connecting plate is hinged on the inner side edge of the front transversal valve plate which is provided with more than one ventilation hole. A movable regulating gate is arranged at the rear side of the ventilation holes. A communicating vessel is arranged at the front side of the ventilation holes. A plastic rubber ventilation tube extending to the digging end head of the work surface is fixedly sheathed with the communicating vessel. The utility model is characterized in that the working efficiency is high, the ventilation effect and the safety performance are good, the working environment in the pit of mine is effectively improved, the structure is simple, the production and installation are convenient, the cost is low, the investment is small, the electric energy is saved and the mining cost is low, and is especially suitable for the construction of the pit of mine.

Description

Lock is distributed with air draught in the down-hole, mine

A kind of mine mechanism of technical field is especially for the mechanical device of down-hole, mine ventilation.

Background technology extracts minerals at present, and particularly the method for digging coal is at first to dig a bite main shaft as haulage drift, enter getting working face then after, dig a bite auxiliary shaft again as ventilating shaft, be communicated with the main shaft haulage drift as the return aircourse.In the return aircourse, load onto induced draft fan, the air in the haulage drift is constantly released, make not sulks of underground operators.But when needs were opened the work of several branch headings, every branch heading must be installed ventilator in addition, kept watch through air duct and sent the branch heading to and could work.There is following defective in such method of ventilation:

1, when digging termination, branch heading is far away, the wind-force of delivering to the digging termination is often not enough.Because wind-force is little, fire damp can not in time be discharged, and the gas poisoning accident takes place easily.

2, every branch heading all needs to install ventilator, uses electricly, and equipment is many, power consumption is many, has both improved cost of mining, increases potential safety hazard again.Because electrical hazard such as electric spark, short circuit causes the fuse of fire damp blast often.

The summary of the invention the purpose of this utility model provides down-hole, a kind of mine and distributes lock with air draught, substitutes ventilator, improves the underground work safety index and reduces cost of mining.

Technical scheme is to install to be in the return aircourse with the cross section of whole tunnel sealing The air draught of shape distributes lock, and air draught distributes on the lock has the plastic cement air chimney to stretch to each digging termination, branch heading respectively, and the induced draft fan in the return aircourse sucks out with the air of negative pressure suction mode with the digging termination by the plastic cement air chimney.With it simultaneously, the fresh air from main shaft adds to each digging termination naturally through the tunnel.It is that forward and backward horizontal flashboard inner side edge is separately fixed on the front and back ends of middle connecting plate that air draught distributes the structure of lock, and the middle connecting plate below is a hermatic door, and the effect of hermatic door is to make things convenient for the staff temporarily into and out of the return aircourse.An above gravity vent is arranged on the flashboard, and the gravity vent rear side is equipped with the activity adjustment doors, and the ventilation fan front side is equipped with linker, and the plastic cement air chimney that stretches to work plane digging termination is solidly set on the linker.Air draught distributes lock to be fixed on screw on the borehole wall of return aircourse, is filled with encapsulant in the slit between the lock and the borehole wall.

Compared with the prior art, the utility model has following characteristics:

1, high efficiency, ventilation effect are good.

Because the plastic cement air chimney directly extends the digging termination, the running of induced draft fan makes the plastic cement air chimney produce powerful systemic action, and directly gas and the waste gas with the digging termination siphons away, and fresh air replenishes rapidly, reaches ventilated optimum efficiency.

2, security performance is good, effectively improves the underground work environment.

Because the utility model can directly be taken the gas and the waste gas of digging termination away, prevents that gas from gathering, add no dry sound and produce, therefore effectively improve the working environment of underground operators, improved safety index.In addition,, therefore nipped off the possibility of fire damp blast, further ensured underground work safety from the source because the utility model does not have electric faults such as electric spark, short circuit.

3, simple in structure, making and easy for installation, cost of production is low.

4, small investment, saves energy reduce cost of mining, and economic and social benefit is very remarkable, is particularly suitable for the coal mine construction.

Because the utility model has replaced the ventilator in each branch heading, down-hole, therefore reduce habilitation, save equipment cost, reduce the number of electric attendant, saves energy reduces cost of mining greatly.By one of economize on electricity, its economic and social benefit can't be estimated.At present, a down-hole blowing device of producing hundred tons small mine daily per hour needs the electricity of degree more than 50, will spend degree more than 1200 in one day, 1 year above electric energy of needs 420,000 degree.Whole nation middle and small scale coal mine is ten hundreds of, if all adopt words of the present utility model, will save how many electric energy! Really can't calculate.Can predict: the utility model will be made huge contribution for the power supply shortage of alleviating China.

Description of drawings Fig. 1 is that the lock front view is distributed with air draught in the down-hole, mine.

Fig. 2 is that the lock vertical view is distributed with air draught in the down-hole, mine.

Fig. 3 is that the lock left view is distributed with air draught in the down-hole, mine.

Fig. 4 is that the lock rear elevation is distributed with air draught in the down-hole, mine.

Fig. 5 is that air draught distributes lock installation site schematic diagram.

Wherein 11-main shaft, 12-haulage drift, 13-auxiliary shaft, 14-return aircourse, 15-first work plane, 16-second work plane.

The specific embodiment is shown in Fig. 1～4, forward and backward horizontal flashboard 1,2 inner side edges are fixed on middle connecting plate 3 front and back ends with screw respectively, on forward and backward horizontal flashboard 1,2 outer side edges installing plate 5 is arranged respectively, the hermatic door 4 of middle connecting plate 3 belows is hinged on preceding laterally flashboard 1 inner side edge.4 gravity vents 6 are arranged on the flashboard, and gravity vent 6 rear sides are equipped with activity adjustment doors 7, and gravity vent 6 front sides are equipped with linker 8, and the plastic cement air chimney 9 that stretches to work plane digging termination is solidly set on the linker 8.

In the present embodiment, activity adjustment doors 7 is positioned at upper and lower chute 10, controls the open amount of gravity vent 6 with the method that horizontally slips.In real work,, determine the open amount of gravity vent 6 according to the distance of digging termination according to the unlatching number that how much determines gravity vent 6 of digging termination, branch heading.Length as for plastic cement air chimney 9 generally should be in 200 meters.

Fig. 5 is that air draught distributes lock installation site schematic diagram.When exploitation first work plane 15 coal seams, air draught distribution lock should be installed in the A place among Fig. 5, and the plastic cement air chimney stretches to first work plane, 15 digging terminations.When had adopted in first work plane, 15 coal seams, air draught distribution lock should be installed in the B place among Fig. 5, seals tunnel, dotted line place simultaneously, and the plastic cement air chimney then stretches to second work plane, 16 digging terminations.

Claims

1, lock is distributed with air draught in down-hole, a kind of mine, before it is characterized in that, the back is flashboard (1) laterally, (2) it is preceding that inner side edge is separately fixed at middle connecting plate (3), on the rear end, before, the back is flashboard (1) laterally, (2) installing plate (5) is arranged on the outer side edges respectively, the hermatic door (4) of middle connecting plate (3) below is hinged on preceding laterally flashboard (1) inner side edge, an above gravity vent (6) is arranged on the flashboard, gravity vent (6) rear side is equipped with activity adjustment doors (7), gravity vent (6) front side is equipped with linker (8), and the plastic cement air chimney (9) that stretches to work plane digging termination is solidly set on the linker (8).