Coal Mine High Pressure Hose

Due to the special environment of coal mines and underground mines, mining pipes must have the basic characteristics of anti-static, anti-flame retardant. On the one hand, because there are generally acidic or alkaline solutions in coal mines, they are highly corrosive. Therefore, if the pipeline is to be able to keep time working under the mine, it must have acid and alkali resistance

On the other hand, due to the possibility of mine car down the road or mine collapse, the pipeline must have the characteristics of anti-impact and anti-extrusion. The ultra-high molecular weight polyethylene (PE) pipe used in coal mine is an ideal mine pipe.

First, performance characteristics:

Coal mine polyethylene pipe, pipe fittings is a kind of special environmental protection plastic pipe, applied to the product has flame retardant and antistatic requirements of pressure and non-pressure pipe, with light weight, corrosion resistance, convenient construction and other characteristics, the material used for coal mine polyethylene pipe special material, can meet the requirements of users.

Second, product use:

Mine supply and drainage pipes, pressure air pipes, gas extraction pipes and shotcrete pipes; Protection tube of mine power cable, optical cable communication signal cable; Pressure or non-pressure piping in high gas or dust environment; Highway, railway, tunnel ventilation, drainage pipes.

Third, product features and installation instructions:

1. Flame retardant, antistatic

The antistatic components and flame retardant components of polyethylene pipe used in coal mine are evenly distributed in the pipe body, so the antistatic and flame retardant performance indicators will not be affected by long use time. Antistatic and flame retardant properties are in line with national standards, suitable for underground flammable and explosive specific places.

2. Light weight and easy installation

The density of polyethylene pipe used in coal mine is small, the unit weight is only 1/8 of the steel pipe and 1/3 of the glass steel pipe, so the polyethylene pipe used in coal mine is not only convenient for transportation and installation, but also can greatly reduce the labor intensity of workers and improve work efficiency when used underground.

3. Good aging resistance and rapid cracking resistance

The mine polyethylene pipe has good anti-aging performance, is not easy to embrittlement, and has good toughness and absorbs impact force. Its elongation at break is more than 200%, it has good resistance to rapid cracking and can effectively avoid fracture accidents.

4. Corrosion resistance, no scaling

Polyethylene used in coal mine has strong corrosion resistance and no scaling, especially suitable for underground transportation of water with high sulfur quality and water containing calcium and magnesium plasma. Save the cost of corrosion and scaling, and the service life is much higher than the steel pipe, the comprehensive economic benefit is 6-8 times that of the steel pipe.

5. Self-lubricity

The inner wall of polyethylene pipe used in coal mine is smooth, the equivalent absolute roughness is 2/5 of the steel pipe, the transportation resistance is small, and the transportation capacity can be increased by 30% under the same conditions. No compensation required. The thermal expansion coefficient of polyethylene pipe used in coal mine is slightly higher than that of steel pipe, but the modulus is much lower than that of steel pipe, the effect of its expansion is quite small, the material itself can be absorbed, and there is no need to use compensation means in the pipeline system.