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— Conveyors with A simple layout can be calculated by the following formula using the estimation method: 1. ... Belt conveyor of coal transportation system of Hebei Huanghua Port Coal Terminal: total length is 316.47 m, belt width is 2400 mm, belt speed is 4.2 m/s, maximum conveying capacity is 9200 t/h, lifting height is 6.11 m, driving power …