Re: Increasing Heat Resistance Of Top Cover In Belt
Dear SIr,
I have heard of conveyor belts with Flame resistant combined with heat resistant cover rubber but have never come across one personally. I believe the Heat resistant properties will be only for surface temperature of upto 110degC. ■
Heat Resistance Of Belt Top Cover
Dear P. Rekhawar,
I never heard of any sprayable coating resisting more than 120°C. You can aks Dupont (PTFE or something else) or ITW Devcon in the USA (PU or epoxy with some retardant additive). Maybe they can advice something.
Myself I should recommand two things:
1) Use a better belt. Goodyear i.e. provide a heat resistant belt with a fiberglass fabric reinforcement. It offers a protection during a short time against hot shots, resisting burn through up to 500°C if I remenber well.
2) Use also our Super-Screw fastener in order to join the belts. It's a leak proof hybrid fastener made with special fabric, rubber and self taping screws for a very simple and quick installation. For heat resistant belts we can provide a very heat resistant rubber 200°C constant (peak 260°C). With this fastener you can splice an old belt with a new belt and you will cut time down time and improve your productivity. A lot of smelting plants and coke plants use it. Of course it works good with all scrapers !
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Increasing Heat Resistance Of Belt
There is a very quick and simple answer -- No. The only way you can improve the the performance that is successful is quenching the belt on the return side. If there is even a modest water film on the belt prior to a hot load being loaded it improves the belt performance immeasurably. Heat resistant compounds used to make heat resistant conveyor belts are usually EPDM type polymers and these are very difficult to apply surface coatings to as they are very inert compounds. Remember that the covers are there to protect the carcass so extra cover thickness is always advisable if the temperatures are very high.
Col Benjamin ■
Increasing heat resistance of top cover in belt
Dear all,
Is there any coating available, which will increase the heat resistance of an FR grade belt? Application may be by brush or by spray.
The application is for a belt carrying quenched coke to the plant. This particular belt has got burnt many times due to presence of coke pieces which remains red hot inside.
Regards ■