AN APPARATUS, COMPONENTS AND A METHOD FOR THE FILTERING OF LIQUID

摘要

An endless filter chain (40) for filtering liquid, e.g. sewage water which flows along a drainage duct (1) comprises strainer elements (50) and connecting links interconnected to allow the strainer elements to pivot about respective pivot axes of the connecting links while maintaining a small clearance between the leading edge of each strainer element and the trailing edge of the respective adjacent preceding element while the filter chain is trained about an upper and a lower turning roller (20, 22, respectively). This filter chain does not comprise separate conveyor chains and the strainer elements can be sized to a width where they cover practically the entire width of the drainage duct. The invention also comprises a strainer element, a connecting link, and an apparatus and a method for filtering liquid.