| 摘要 |
A strainer for removing particles from effluent, comprising a screen (12) wi th a plurality of fixed parallel aligned bars (13) and displaceable bars (14). The strainer is arranged in a plane inclined downwar ds into a flow of water, with the edges of said bars tur ned towards the flow direction of the water being stepped. The displaceable bars are interconnected in parallel to at least one package, which is operable by means of a drive mechanism (18). The drive mechanism is loca ted at the upper end of the strainer, above the flow of water, to bring about a closed circuitous path in the plane of the bars, said path including a vertical component of movement surpassing th e step height of the bars. The drive mechanism (18) is connected via at least one pull means (29) to a respective link mechanism (27-29), which is located at the bottom end of the strainer in the flow of the water to sup port the bottom end of the displaceable bar package (14 ).
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