Filter element with coating for surface filtration

摘要

An inherently stable, flow-porous filter element ( 2 ) having a porous coating ( 10 ) for surface filtration on its afflux surface, said coating ( 10 ) comprising: (a) a main component of particles ( 12 ) and/or fibers ( 22 ); (b) an inorganic binder component ( 14; 24 ) binding the particles ( 12 ) and/or the fibers ( 22 ) of the main component to each other; (c) an adhesive ( 16; 26 ) binding the porous coating ( 10 ) to the remainder of the filter element; (d) and an anti-adhesion component ( 18; 28 ) mitigating the adhesion of filtered out material to the porous coating and facilitating cleaning of the filter element.