| 摘要 |
<p>An exchangeable, rectangular, flat, selectively permeable filter element (1) for equipping the frame-like section (27,30) of a sheet filter apparatus (20) made of metal and/or hard plastic for the filtration of fluids (liquid and/or gas), is supported by its edge in a leak-proof and sandwich-like manner between a housing part (30) on the suspension space side and a housing part (27) on the filtrate space side so as to be able to be tightened and against the pressure drop on a draining housing supporting plate (27), the suspension space and filtrate space being equipped with connections (22,25) for supplying and discharging the housing spaces. The flat filter element (1) is formed from a flat filter belt matching the internal dimensions of a hollow space (30) in length, width and depth (essentially filling these internal dimensions), which flat filter belt is pleated into a multiplicity of closely adjacent folds, the open folds and the web ridges of one side of the pleating facing the suspension space (41) and the open folds and the web ridges of the other side facing the filtrate space (47), and the pleating, shaped into a flat parallelepiped (plate), of the filter belt blank made up of at least a single layer is held in a frame-like manner by a plastic seal (6) and this is equipped with a moulded-on sealing flange (7) by which the filter cassette can be clamped between the housing parts (27,30) in a leak-proof manner. The pleating is [lacuna] on both sides with a supporting grid (10, ... Original abstract incomplete. <IMAGE></p> |
