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Rotary drum washer for street sweeping waste and contaminated soil
Rotary drum washer for street sweeping waste and contaminated soil
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机译:旋转式滚筒洗衣机,用于扫街垃圾和污染的土壤
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摘要
A washer comprises a horizontal rotary drum (1) in which the materials to be treated are introduced through a feed hopper (12) together with a water flow admitted through treatment nozzles so as to form a suspension of water and materials, inside the drum (1) there being arranged inclined paddles (2) that move forward the heavy materials deposited on the bottom of the drum (1) towards an exit end where an extractor (3) conveys them towards concentric screening means, a stop ring (10) being arranged transversally inside the drum (1) so as to leave only a peripheral annular passage having a height lower than the level of the suspension of water and materials present on the bottom of the drum (1) so as to stop the lighter organic contaminants that are in the upper part of the suspension. The machine can further be provided with means for slightly inclining the axis of the rotary drum (1) within a small angular interval (α), as well as with clod-breaking teeth for treating clayey materials.
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