Underground steel wire reinforced thermoplastics (PE) composite pipe for mining

2018/07/20


Underground steel wire reinforced

thermoplastics (PE) composite pipe for mining


008副本          4

PN:The PN of underground pipe for mining for water supply and drainage, air compressing, and guniting is 0.8MPa~7.0 MPa; the negative pressure of the pipe for gas extraction is -0.097MPa.



Specification:dn 50mmdn 1000mm

Standards: CJ/T189-2007CJ/T189-2007 Steel Wire Reinforced Thermoplastics (PE) Composite Pipes and Fittings, and MT181-1988 Code for the Safety Performance Test of Underground PE Pipes for Mining.

Performance features:

●Flame resistance and static electricity resistance: the anti-static and flame-retardant material is evenly distributed in the pipe body. The performance parameters of flame resistance and static electricity resistance are not to be affected by the long working time. It can be well applied in the underground fields where flame and exploration easily occur.

Light weight and convenient installation: the pipe density is small, which not only is convenient for transportation and installation, but also can greatly reduce the labor intensity of workers and improve work efficiency whenused underground.

Corrosion resistance and no scaling: especially suitable for being used underground to convey water also and water with calcium ion or magnesium ion etc, which can save the cost for corrosion resistance and scale removal largely.

Self-lubricating: the inner wall of the pipe is smooth, thus the resistance is small when conveying the fluid. Under the same conditions, the conveying capacity can be increased by 30%, enjoying good flexibility and strong resistance to geological sedimentation.

Good anti-aging and anti-fast cracking performance: the underground steel wire reinforced thermoplastics (PE) composite pipes for mining enjoy good anti-aging performance, are not easy to embrittle at low temperature, and have good resistance against rapid cracking; have good toughness, thus being able to effectively absorb impact; and have the moderate flexural modulus.

Good wear resistance: the comparison test of wear resistance between underground steel wire reinforced thermoplastics (PE) composite pipes for mining and steel pipes proves that the wear resistance of underground PE pipes for mining is 4 times that of better than steel pipes. In the field of coal transportation, compared with steel pipes, underground PE pipes for mining have better wear resistance, which means that underground PE pipes for mining have longer service life and better economical efficiency.



The PN and specification of the underground pipes for mining for water supply, drainage (KS), air compressing (KF), and guniting (KJ) need to meet the requirements in Table 1.

 

 

 

Table 1:PN and specification of pipes

Nominal outer diameter mm

PN, MPa

0.8

1.0

1.25

1.6

2.0

2.5

3.0

3.5

4.0

5.0

6.3

7.0

Minimum wall thickness, mm

50

 

4.5

4.5

4.5

5.0

5.5

5.5

5.5

6.0

8.5

9.0

9.5

63

4.5

4.5

4.5

5.0

5.5

5.5

5.5

6.5

8.5

9.0

10.0

75

5.0

5.0

5.0

5.0

5.5

6.0

6.0

9.5

9.5

9.5

10.5

90

5.0

5.0

5.5

5.5

6.0

6.0

6.0

10.0

10.5

10.5

11.5

110

5.5

5.5

7.0

7.0

7.5

8.5

8.5

11.0

12.0

12.0

12.0

125

5.5

5.5

7.5

8.0

8.5

9.5

9.5

11.0

11.0

12.0

12.0

140

5.5

5.5

8.0

8.5

9.0

9.5

9.5

11.0

11.0

13.0

13.0

160

6.0

6.0

9.0

9.5

10.0

10.5

10.5

11.0

12.0

14.0

14.0

200

6.0

6.0

9.5

10.5

11.0

12.0

12.5

13.0

13.0

15.0

15.0

225

8.0

8.0

10.0

10.5

11.0

12.0

13.0

13.0

13.0

 

 

250

10.5

10.5

12.0

12.0

12.5

14.0

14.0

14.0

15.0

280

9.5

11.0

11.0

13.0

13.0

15.0

15.0

17.0

 

 

315

9.5

11.5

11.5

13.0

13.0

15.0

15.0

18.0

355

10.0

12.0

12.0

14.0

14.0

17.0

17.0

19.0

400

10.5

12.5

12.5

15.0

16.0

17.0

17.0

 

450

11.5

13.5

13.5

16.0

18.0

18.0

 

500

12.5

15.5

15.5

18.0

19.0

22.0

560

17.0

20.0

20.0

22.0

22.0

 

630

20.0

23.0

23.0

26.0

26.0

710

23.0

26.0

29.0

30.0

 

800

27.0

30.0

32.0

34.0

900

29.0

33.5

35.0

38.0

1000

34.0

37.0

40.0

 

 

Instructions of underground steel wire reinforced thermoplastics (PE) composite pipes for mining

All the pipes for gas extraction (KW) for underground mining are awarded the safety certificate of approval for mining products.

 The maximum pressure of the pipes for water supply and drainage (KS), air compressing (KF), and guniting (KJ) for underground mining in the safety certificate of approval for mining products is 4.0MPa, and the pipe diameter is under dn315mm. The maximum diameter is dn630mm, and the pipe pressure is under 1.6MPa (including 1.6MPa).


 

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