With the continuous advancement of industry to technology, the research and development of bulk material conveying equipment has also made rapid progress. At present, iron and steel smelting, cement clinker production, alumina production, hot lime handling amount transportation has been inseparable from the reliable heat-resistant conveyor belt help, heat-resistant rubber conveyor belt is increasingly widely used. If it is classified according to the main material covered by glue, what three types of heat-resistant conveyor belt can be divided into?
SBR has excellent heat-resistant aging performance, and is suitable for heat-resistant conveyor belts with heat-resistant grades T1 and T2. Therefore, the covering rubber main material of conveyor belts in this range is usually SBR. At present, SBR heat resistant conveyor belt occupies a high market share in heat resistant conveyor belt, and is widely used in hot coke transportation of steel plants, cement clinker transportation of cement plants, sinter transportation of alumina plants and other aspects. This is because SBR has a low price, mature and simple processing technology, and high cost performance of SBR heat resistant conveyor belt.
2. EPDM heat-resistant conveyor belt
For different heat resistance levels, different heat resistance conveyor belt covering rubber body material is suitable for several specific heat resistance levels, but not all. Heat-resistant conveyor belts with heat-resistant grades of T2, T3 and T4 are usually covered with EPDM, which has excellent heat-resistant aging performance and is not easy to crack. The main material of EPDM heat-resistant conveyor belt covering glue is usually EPDM alone or EPM/EPDM combined with glue, so that the surface material of conveyor belt is not easy to fall off even in high temperature environment.
3, IIR heat resistant conveyor belt
The heat resistant conveyor belt covered with rubber main material is butyl rubber (IIR). The temperature can reach very high, and even the upper limit of heat resistant temperature can exceed 200 degrees Celsius. At the same time, oil resistance and chemical medium resistance can also be maintained for a long time, not because of the rise of temperature and weakened. At present, some manufacturers are also commonly used to produce butyl rubber heat-resistant conveyor belts, largely because of its lower cost.
Generally speaking, heat-resistant conveyor belt can be mainly divided into SBR, EPDM and IIR materials according to the main material of covering glue. For specific production enterprises, enterprises can select conveyor belts of different covering rubber main materials according to the actual temperature of the types of materials they need to transport.