Non-recoverable wood or synthetic filter block for a dust extractor

摘要

Filter block for dust extractor, comprising a rigid chassis (6) in the form of a rectangular plate contg. a number of holes (6a) to receive filter cells (9) whose free sides are fixed on the chassis. The chassis includes two elements (18, 19) which sandwich the fixing edges of the cells mechanically whilst the cells are also glued to at least one of the elements (19). The chassis and filter cells are made of a combustible material which can be burned such as wood or a synthetic. The top element (18) of the chassis forms a rectangular box surrounding the holes for the filter cells from the lower element (19). The two elements are basically identical.