CN1053104A

CN1053104A - Safe coal mining process without ventilation in mine

Info

Publication number: CN1053104A
Application number: CN 89109715
Authority: CN
Inventors: 钟显亮; 冯菊坤; 朱正庭; 蒋福兴
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-12-30
Filing date: 1989-12-30
Publication date: 1991-07-17

Abstract

A kind of safe coal mining process without ventilation in mine belongs to coal-mining method and mining safety technology.It fundamentally eliminates the blast and the burning of gas in the coal mine roadway, coal dust, the spontaneous combustion of coal, and disasters such as colliery acid water are also eliminated and are suffocated and the harm of mine dust to human body, improve coal mine working personnel's existence, working environment greatly.Major technique is characterized as coal mine roadway and is prohibited from entering air; The down-hole needn't put an end to the fire source, needn't be explosion-proof; Provide guarantee and personal protection between microvoid to the personnel in the pit.

Description

Safe coal mining process without ventilation in mine

The present invention is a kind of coal-mining method and mining safety technology.

All well worker mining methods all require to ventilate, and to guarantee the supplying with required oxygen of personnel in the pit, reduce tunnel temperature and eliminating or dilution pernicious gas and dust simultaneously; During particularly the well worker mined, ventilation was to prevent the blast of gas and coal dust and the main method of pyrophoricity accident.But this mine has many problems with the conventional method of " ventilation ensures safety ": serve as to constitute ventilation system will dig half tunnel nearly more, increase many equipment and personnel and power consumption for ventilating, thereby increase tonnage expenditure and cost greatly, and so huge cost and fail to make the real safety of mine does not make the miner break away from the threat of dust and heat evil yet.

The objective of the invention is fundamentally to eliminate the deficiency of existing coal-mining method and mining safety technology, a kind of technology is easy, safe and reliable, can eliminate miner occupational disease coal-mining method and mining safety technology are provided, and it can make the well worker mine and produce the acquisition great economic benefit.Technical characterictic of the present invention is: mining tunnel is prohibited from entering air (oxygen), will be that the protection of purpose changes personal protection and short space protection into by total space protection with mine safety.

Invention is achieved in that the shaft station of auxiliary shaft establishes the twice valve, they at a distance of about 100m(apart from length greater than a row mine car).Two valves always are in closed condition at ordinary times, enter tunnel in the well to stop air, and when mine car passed through, their orders were opened afterwards earlier and closed; For mixing gas lane section (the existing air of putting into from the well head direction also has the gas of putting into from the mine internal direction), this lane section domestic demand has ventilation equipment between two valves, and electromechanical equipment all should be explosion-proof, and gas detection, warning device also should be arranged.The main well headframe integral sealing only communicates with ground air at the coal bunker coal outlet.Go into the well personnel and dress individual safeguards system (my another invention, patent applied for) without exception.And be separated by suitable distance parallel with mixed gas lane section dug a large stable chamber (between changing the outfit), and this chamber has two outlets: one at auxiliary well head direction (outer vent), has the twice valve to intercept air and enters chamber; One at mine internal direction (inner outlet), and the twice valve is also arranged, and gas enters chamber in the well to stop.All should there be good ventilation, explosion-proof and gas detection, warning device in space between the valve of chamber and each outlet.Preserve the individual safeguards system that infeeds well personnel use between changing the outfit.Go into the well personnel from outer vent enter change the outfit between, enter the inner tunnel of the mine that does not have air by inner outlet after between changing the outfit, dressing individual safeguards system.Want the gug personnel by inner outlet enter change the outfit between, after the removal individual safeguards system, the clothes of putting on me enters the auxiliary shaft gug that is connected with atmosphere by outer vent again.Concentrate or establish between little guarantee in the place of long-term work personnel, it has the required air of personnel's eupnea, suitable temperature, and has for the individual safeguards system of changing, replenishes the gasholder of air.There are fixed and movable two kinds between little guarantee like this.Fixedly utilize useless, not busy tunnel to build up, also can utilize reorganization and expansion such as down-hole hoist house to form.Movable being installed on a few joint mine cars of pliable-closure, connection.Equal opening (access) above it between all little guarantees.The air that personnel breathe out can be established specific device between guarantee fixedly declining, and introduces a small amount of gas at exhaust opening, and the electricity consumption burning things which may cause a fire disaster is eliminated oxygen again.

The present invention has been owing to guaranteed that the roadway space is an oxygen-free environment effectively, thereby avoided the generation of all disasters relevant with oxygen and infringement (as the blast of coal dust and gas and burning, mine fire, mine acid water, underground equipment corrosion) and pneumoconiosis; Because the cancellation ventilation system can make tonnage expenditure and cost of ton coal respectively save 1/3; Its indirect social benefit is also very huge.The present invention will cause the revolution of coal-mining method and mining safety technology, but its single technology there is no unsurmountable difficult point, have in assurance new, old mine smooth implementation.

Claims

1, the tunnel is prohibited from entering the pit mining method of the various mineral products under the air conditions, it is characterized in that:

The twice valve is established in the shaft station of a, auxiliary shaft, main well headframe (slope mouth) integral sealing;

B, cancellation ventilation system are gone into the well personnel and are dressed individual safeguards system without exception.

2, according to the described exploitation method of claim 1, it is characterized by establish near the auxiliary shaft change the outfit between, the individual safeguards system of the well of infeeding personnel use is arranged between changing the outfit;

3, according to the described exploitation method of claim 1, it is characterized by in the down-hole suitable place and establish between little guarantee, have between little guarantee for the individual safeguards system of changing and replenish the gasholder of air;

4, according to claim 1, it is characterized by the air of personnel's exhalation, in the specific device between fixing the guarantee, introduce a small amount of gas, the electricity consumption burning things which may cause a fire disaster falls oxygen expenditure;

5,, it is characterized by under the coal mine electromechanical equipment and cancel all explosion-proof technology measures according to the described exploitation method of claim 1;

6,, it is characterized by in the tunnel general light source lightings such as available incandescent lamp, the cancellation mine lamp according to the described exploitation method of claim 1.