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    • 4. 发明授权
    • Conveyor belts for transporting tar sands
    • 用于输送焦油砂的输送带
    • US3963113A
    • 1976-06-15
    • US606150
    • 1975-08-20
    • Jackson S. Boyer
    • Jackson S. Boyer
    • B65G15/32B65G15/36B65G15/30
    • B65G15/32B65G15/36B65G2201/04Y10T428/24132Y10T428/249936Y10T428/31692
    • A method for transporting tar sands in an open pit mine utilizing novel flexible belt conveyors between a receiving area and a discharge area which comprises providing a conveyor belt having an upper surface layer of a novel elastomeric material which is flexible at low temperatures and is substantially resistant to excess swelling when exposed to petroleum liquids containing up to 30 volume percent aromatics at temperatures in the range of -60.degree.F to +100.degree.F, applying a thin layer of said petroleum liquid to the surface of said belt and thereafter transferring tar sands on said belt from a receiving area to a discharge area.
    • 在接收区域和排放区域之间利用新的柔性带式输送机在露天矿井中输送焦油砂的方法,该方法包括提供具有新的弹性体材料的上表面层的传送带,所述弹性体材料的上表面层在低温下是柔性的并且基本上是抗性的 当在-60°F至+ 100°F的温度范围内暴露于含有高达30体积%芳族化合物的石油液体时,过量膨胀,将薄层所述石油液体施加到所述带的表面,然后转移焦油砂 在所述带上从接收区到排放区。