CN103726875A

CN103726875A - Method for remote filling of explosion-proof compression-resistant closing of coal mine

Info

Publication number: CN103726875A
Application number: CN201410020093.4A
Authority: CN
Inventors: 马汉鹏; 钟膨蓬; 戴正烈; 李华炜; 李其中; 商振; 陈亮; 张虹
Original assignee: North China Institute of Science and Technology
Current assignee: North China Institute of Science and Technology
Priority date: 2014-01-16
Filing date: 2014-01-16
Publication date: 2014-04-16

Abstract

The invention relates to a remote filling method for explosion-proof and pressure-resistant airtightness of coal mines, which comprises the following steps: 1) building an airtight wall on both sides of the airtight section roadway where a fire occurs; A number of conduits are set between the side walls of the tunnel. One end of the conduit enters the tunnel between the two closed walls, and the other end is connected to the conveying pipeline directly outside the mine; 3) Filling material is injected into the conveying pipeline arranged outside the mine, filling The material flows into the roadway through the conduit, and the filling material solidifies and fills and seals the roadway between the two closed walls. This method can effectively guarantee the life safety of airtight workers. The foam cement with strong fluidity is used as the filling material, which can penetrate into every gap in the closed space, so that the closed wall after completion has the advantage of not being easy to leak air. Foamed cement has strong anti-explosion ability and strong anti-compression ability. Therefore, the airtight wall does not need to be very thick, which effectively reduces the amount of airtight engineering and sealing time, and is convenient for resisting the deformation of the surrounding roadways in the airtight space. The invention can be widely used in the field of closed filling in underground mines.

Description

The long-range fill method that a kind of coal mine explosion-proof resistance to compression is airtight

Technical field

The present invention relates to a kind of mine explosion-proof resistance to compression sealing method, particularly about the airtight long-range fill method of a kind of coal mine explosion-proof resistance to compression.

Background technology

Aspect the antiknock ability of enhancing fire dam, the measure of mainly taking is at present the thickness that increases twice fire dam, and what airtight body of wall was mostly used is the materials such as brick, concrete, clay, lime, cement, sand, rubble and rubble, these ways can cause airtight engineering quantity large, build the drawbacks such as the time of building is long.And for the constructor of fire dam, fire enclosure is an extremely dangerous process, the high risk factors such as gas, coal dust are threatening their life security constantly.The thickness that adopt to increase fire dam strengthens the fire dam that the antiknock ability of fire dam builds up, and airtight performance is poor, a little less than antiknock, impact resistance, is difficult to effectively stop air leakage phenomena, has greatly increased the management difficulty in goaf.Therefore, be necessary to propose a kind of antiknock ability of fire dam but also sealing method of good leak tightness of not only having increased.

Summary of the invention

For the problems referred to above, the object of this invention is to provide the airtight long-range fill method of a kind of coal mine explosion-proof resistance to compression.

For achieving the above object, the present invention takes following technical scheme: the long-range fill method that a kind of coal mine explosion-proof resistance to compression is airtight, and it comprises the following steps: 1) in airtight section of tunnel of breaking out of fire, a fire dam is respectively piled up in both sides; 2) between the fire dam away from flame range one side and tunnel sidewall, some conduits are set, conduit one end enters in two tunnels between fire dam, and the other end connects the transfer pipeline of straight-through mine outside; 3) to being arranged in the transfer pipeline of mine outside, inject packing material, packing material flows in tunnel via conduit, after packing material solidifies, fill and airtight two fire dams between tunnel.

On two described fire dams from top to bottom successively respectively correspondence offer a measure hole, a peep hole and a spilled water hole, and described spilled water hole is arranged at described fire dam bottom; On two described fire dams, between corresponding two described measure holes, two described peep holes and two described spilled water holes, all adopt pipe to be communicated with.

Described conduit is two, and described conduit adopts the floral tube that diameter is 108mm, and on described floral tube, the diameter of aperture is 10mm.

Described packing material is foamed cement.

The present invention is owing to taking above technical scheme, it has the following advantages: 1, the present invention adopts and insert conduit between two fire dams, conduit is connected in the transfer pipeline of mine outside, therefore in transfer pipeline, add packing material, packing material can flow into the confined space between two fire dams and tunnel, realize long-range filling airtight, adopt this kind of method can the airtight staff's life security of effective guarantee.2, in the present invention, conduit adopts floral tube, and the hole on floral tube contributes to packing material flow out fast and be filled in confined space uniformly.3, the present invention adopts foamed cement as packing material, and foamed cement mobility is strong, can be penetrated into each gap of confined space, and the fire dam after therefore completing has advantages of and is difficult for leaking out.Due to, foamed cement antiknock ability is strong, therefore very thick without what fire dam was built, reduce greatly airtight engineering quantity and sealing time, and foamed cement anti-pressure ability is convenient to by force resist the roadway deformation of confined space inner rim.The present invention can be widely used in the airtight padding field of mine down-hole.

Accompanying drawing explanation

Fig. 1 is conduit scheme of installation of the present invention

The specific embodiment

Below in conjunction with drawings and Examples, the present invention is described in detail.

As shown in Figure 1, the airtight long-range fill method of coal mine explosion-proof resistance to compression provided by the invention comprises following content:

1) in the tunnel for breaking out of fire, a fire dam 1 is respectively piled up in 100 both sides, tunnel airtight section of needs, on two fire dams 1 from top to bottom successively respectively correspondence offer a measure hole 2, a peep hole 3 and a spilled water hole 4, and spilled water hole 4 is arranged at fire dam 1 bottom;

2) all adopt pipe to be communicated with two measure holes corresponding on two fire dams 12, two peep holes 3 and two spilled water holes 4;

3) between the fire dam 1 away from flame range one side and tunnel 100 sidewalls, some conduits 5 are set, conduit 5 one end enter in two tunnels 100 between fire dam 1, and the other end connects the transfer pipeline (not shown) of straight-through mine outside;

4) to being arranged in the transfer pipeline of mine outside, inject packing material, packing material flows in tunnels 100 via conduit 5, and packing material solidifies at short notice, fills and airtight this section of tunnel 100.Adopt that this kind of mode is long-range to be realized airtightly, can effectively strengthen antiknock ability and the sealing ability of fire dam 1.

In above-described embodiment, the measure hole 2 of offering on fire dam 1, peep hole 3 and spilled water hole 4 are the operative norm of piling up fire dam 1 under mine, therefore no longer describe in detail.

In above-described embodiment, conduit 5 is preferably two, and conduit 5 employing floral tubes, and the diameter of floral tube is preferably 108mm, and on floral tube, the diameter of aperture is preferably 10mm.

In above-described embodiment, packing material is preferably foamed cement.

The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.

Claims

1. A remote filling method of explosion-proof and pressure-resistant airtight coal mine, which comprises the following steps:

1) Build a closed wall on both sides of the closed roadway where the fire occurs;

2) Set several conduits between the closed wall on the side away from the fire zone and the side wall of the roadway. One end of the conduit enters the roadway between the two closed walls, and the other end is connected to the conveying pipeline directly outside the mine;

3) Filling material is injected into the conveying pipeline installed outside the mine, the filling material flows into the roadway through the conduit, and the filling material solidifies and fills and seals the roadway between the two closed walls.

2. The remote filling method for explosion-proof and pressure-resistant airtightness of coal mines as claimed in claim 1, characterized in that: a measure hole, an observation hole and a leaking hole are correspondingly opened on the two airtight walls from top to bottom. water hole, and the drain hole is arranged at the bottom of the airtight wall; between the two corresponding measure holes, the two observation holes and the two drain holes on the two airtight walls They are all connected by round pipes.

3. A remote filling method for explosion-proof, pressure-resistant and airtight coal mines as claimed in claim 1, characterized in that: there are two conduits, and the conduits are flower tubes with a diameter of 108mm, and the small holes on the flower tubes are The diameter is 10mm.

4. A remote filling method for explosion-proof, pressure-resistant and airtight coal mines as claimed in claim 2, characterized in that: there are two conduits, and the conduits use flower tubes with a diameter of 108mm, and the small holes on the flower tubes The diameter is 10mm.

5. A remote filling method for explosion-proof, pressure-resistant and airtight coal mines as claimed in claim 1 or 2 or 3 or 4, characterized in that: said filling material is foamed cement.