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Composite hose for backfill mining
Ⅰ. Structure
Composite hose for backfill mining is made in composite structure with wire reinforcement.
Ⅱ. Use
Composite hose for backfill mining is applicable to backfilling projects in coal mining area, for delivery of coal powder, waste rock concrete or solid mixtures.
Ⅲ. Performance Indicators
Specifications of composite hose for backfill mining are in compliance with: Q/HOY09-2011.
|
Spec. |
I.D. (mm) |
Wire layer Diameter (mm) |
O.D. (mm) |
Working Pressure |
Test Pressure |
Burst Pressure |
Minimum Bending Radius (mm) |
Reference Weight (kg/m) |
|||
|
MPa |
psi |
MPa |
psi |
MPa |
psi |
||||||
|
φ152 |
152±1.0 |
168±1.5 |
172±2.0 |
9.0 |
1300 |
12.0 |
1750 |
15 |
2180 |
1600 |
13.1 |
|
φ152 |
152±1.0 |
175±1.5 |
181±1.5 |
12.0 |
1750 |
15.0 |
2180 |
18 |
2600 |
2280 |
19.8 |
|
φ203 |
203±1.0 |
226±1.5 |
232±1.5 |
15.0 |
2180 |
18.0 |
2600 |
22.5 |
3250 |
3050 |
26.5 |