Fire-resistant conveyor belt for underground mining made of elastomeric material
AssigneeContinental Aktiengesellschaft
InventorMichael Bruggemann
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Abstract
A conveyor belt for underground mining that is reinforced by reinforcement layers and is equipped with wear-resistant cover layers made from an elastomeric material is provided. The elastomeric cover layers are comprised of a halogen-free rubber mixture, a main component of which is ethylene vinyl acetate rubber (EVM), and aluminum hydroxide as a fire-proofing agent. In order to achieve a high fire-resistance while at the same time providing a good processability of the rubber mixture, the rubber mixture contains a small amount of stearyl amine. Thereby a calenderable rubber mixture is obtained which is characterized by a reduced stickiness to the calender rolls.
Claims12
A fire-resistant conveyor belt for underground mining that is reinforced by reinforcement layers and is provided with wear-resistant cover layers made from an elastomeric material, with said elastomeric cover layers being comprised of a halogen-free rubber mixture, a main component of which is ethylene vinyl acetate rubber, and aluminum hydroxide as a fire-proofing agent, the improvement wherein:
- said rubber mixture contains stearyl amine.
Dependencies are inferred from the claim text.