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According to the framework material: Nylon (NN) fabric core pipe conveyor belt;
Polyester (EP) fabric core pipe conveyor belt;
It is widely used in coal, mining, electric power, metallurgy, building materials and grain which have strict requirements on environmental protection and three-dimensional space bending requirements of materials transport. When working, the belt changes from a flat surface to a U-shape, and finally becomes pipe shape, which encloses the material and finally closed transportation.
The fabric pipe conveyor belt is made of multi-layer impregnated nylon canvas, EP canvas as the skeleton material, covered with high strength, good elasticity, excellent wear-resisting performance, heat resistance and ozone aging resistance coating rubber. It is completed after calendering, molding, vulcanization and other processes.
The pipe high wear-resisting conveyor belt has the advantages of flexural resistance, impact resistance, high adhesion, sealed material transport, material and environment double protection, large dip angle transport, transport inclination angle usually up to 30 degrees, transport line can be arranged according to the spatial curve.
High wear-resisting pipe conveyor belt is a novel and environmentally friendly conveyor belt, which is completely different from the traditional conveyor belt. When conveying materials, it can form a round pipe shape and operate in a closed state, so that the materials will not fall, fly, pollute the environment, and be safe and healthy.
There is no big difference between the head and tail structure of a pipe belt conveyor and ordinary belt conveyor, except that the central belt is forcibly wrapped into a circular pipe by a hexagonal arrangement of rollers, and the conveying materials are completely enclosed in the circular pipe and run stably with the belt.
China GB/T7984 Standard
Germany DIN22102 Standard
US RMA Standard
UK EN ISO15236 Standard
Japan JISK6322 Standard
Australia AS1332 Standard
Physical performance category of coating rubber
| Performance class of coating rubber | Tensile Strength MPa
≥ |
Elongation at break %
≥ |
Abrasion
mm3 ≤ |
Ozone Resistant | The tensile strength and elongation at break’s change rate after aging % |
| D | 18.0 | 400 | 90 | No cracking | -25 ~ +25 |
| H | 24.0 | 450 | 120 | No cracking | -25 ~ +25 |
| T1、T2 | 10.0 | 300 | 200 | __ | -45 ~ +45 |
| A . Ozone resistant test condition: concentration（50±5）*10-8 (volume fraction ), temperature (40±2）℃, elongation（20±2）%, time 96h.
B. Hot air ageing test condition: D and H type pipe conveying belt 70 ℃ * 168 h: T 1 type pipe conveying belt 100 ℃ * 168h: T2 type pipe conveying belt 125℃ * 168h. |
|||||
| Note：D—High Abrasion; H—anti – tear; T1—Heat Resistant under 100℃; T2 High Resistant under125℃. | |||||
The high abrasion Type D and high spit Type H belt should meet the requirement of the table below.
| Item | Ply to Ply
N/mm |
Transition part to Ply
N/mm |
Coating rubber to ply N/mm | |
| ≤1.5mm
Thickness of coating |
＞1.5mm
Thickness of coating |
|||
| ≤
Maximum value of all samples |
20 | 20 | 20 | 20 |
| ≥
Average value of all samples |
8.0 | 8.7 | 5.0 | 6.0 |
| ≥
Minimum value of all samples |
7.4 | 7.4 | 4.4 | 5.4 |
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