HDPE pipe for mining
Description of PE pipe for mining
With the advancement of the science & technology and the
development of the materials science, the polyethylene tubing (PE)
has been used more and more widely as its all-round performance,
"Replace steel with plastic" has become trend of social development
The polyethylene tubing for coal mine is the engineering plastic
product, which can be widely used for the water supply under well
in coal mine, drainage, compressed air, spouting mud and pumping
The polyethylene tubing for coal mine has passed the inspection of
the state mining mechanics quality monitoring & checking center
(its performance meets with the enterprise standard
Q/JDG.J02.23-2005 standard), passed the confirmation of the state
mine department, and gained the"Coal mine safe symbol"certificate,
which is the best choice to replace the steel pipe, glass
reinforced plastics pipe.
The polyethylene tubing for coal mine is a kind of special plastic
tubing, which can be applied to the pipe with pressure and
non-pressure, and required the properties of retardant flame and
anti-static, it features light weight, corrosion resistance,
convenient for construction; the used material is the polyethylene
pipe special material for coal mine, which can meet with special
requirements of users.
Properties of PE pipe for mining
1. Light weight, long lifespan, convenient for construction
The weight of the tubing is light, only 1/7 of the steel pipe and
1/2 of the glass-reinforced plastic pipe, while the lifespan is 4~5
times of the steel pipe, fast and convenient for transportation and
installation, especially it can decrease the work intensity of
workers under well, increasing work efficiency.
2. Strong corrosion resistance
The tubing has very strong corrosion resistance, the corrosion
resistance treatment is not needed, which can save relevant cost,
the integrated economic benefit is 5~6 times of the steel pipe, it
is suitable to transport high sulfur water under well especially.
3. Great smoothness of the pipe wall, low flow resistance, not easy
The anti-scum ability of the pipe is strong, it is not easy to scum
for transporting the water containing ions of calcium and
magnesium, it will save absterging cost largely. The inner wall is
smooth, the roughness is 2/5 of the steel pipe, the transportation
is small, under same condition, the transportation capacity can be
improved by 30%.
4. Convenient and reliable for installation
The tubing connection is reliable and convenient for installation,
the construction period is short, saving construction cost, and the
project cost can be decreased largely.
5. High intensity, impact resistance, excellent mechanical features
The PE resin used by the tubing, the anti-aging performance is
good, not easy to embrittle; the tenacity, can absorb the impact
energy; excellent quick crack resistance performance, the breakage
extension percentage can reach 200%, it is affected little by the
landform when constructing under well.
6. Proper flexibility, excellent dynamic rupture toughness KD
value, outstanding shock resistance
As the feature of the PE material body, the tubing has some
deformation without breaking when suffer outside force, and the
quick crack resistance performance is good, the PE has good
resistance ability to the land drop generated by the underground
motion (especial the earth quake), properly complicated trench.
When 5.9 degree of earth quake happened in April 2001 in Baoshan
Yuannan, two loops of PE pipe was safe and sound, while other
pipelines were all damaged, so the PE material is perfect material
underground motion resistance at present.
7. Retardant flame and antistatic
The retardant flame and antistatic are distributed uniformly in the
tubing body, so the retardant flame and antistatic performance will
be affected by working for long time. The retardant flame and
antistatic performances meet the national standard, suitable for
the special inflammable and explosive places under well.
8. Green and environment protection
The raw material is PE resin, which is harmless to person, clean
and non-toxic; the PE material is belonged to the food hygiene
classification, which is used to water supply and drainage system,
without the secondary pollution. The PE material can be recyclable,
green and environment protection.
Water supply and drainage pipeline of mine, air compacted pipe,
pumping gas pipe and spouting mud pipeline; the power cable, the
protection pipe of the fiber cable communication signal cable of
mine; the pressure or non-pressure pipeline under the condition of
high gas or dust; the ventilation and drainage pipeline of the
railway, road and tunnel.
The raw material of the polyethylene pipe for coal mine is imported
from overseas famous manufactures, as the quality of the raw
material affect directly the product quality and stability. When
selecting the raw material manufactures, referring to overseas
experience, select the fixing material with high static electricity
resistance and fire proof which is special for coal mine. Firstly,
hold the quality pass well; secondly, there is good place for
storing the raw material, reasonable batch and storing limitation,
in addition, the raw material each batch should possess the quality
certificate of the manufacture, besides, our company will carry out
the inspection when going into factory, the raw martial which is
not qualified must be returned, guaranteeing the raw material