DISC FILTER AND A METHOD OF CONSTRUCTING A DISC FILTER SECTOR

摘要

A disc filter sector comprising a trapezium tubular support frame, and a trapezium screen frame supporting a screen cloth, the trapezium filter medium dement being connected to the trapezium tubular support structure. More particularly, there is a pair of such filter sectors, and the sectors are connected together by an overlying cap.

主权项

1. A method of constructing a filtering apparatus including: a support structure, the support structure having filtrate compartments communicating with openings in the filter medium for receiving liquid drained through the latter, filter medium elements, each having an end mounted to the support structure by an overlying cap, the support structure having a filter medium element end support portion, and each cap having a filter medium element end overlying portion, the overlying portion including a plurality of tabs spaced apart along the longitudinal axis of the overlying portion, each tab having a first portion that, when the filtering apparatus is assembled, extends perpendicular to the support portion, and a second portion angled relative to the first portion and extending parallel to the longitudinal axis of the cap, the support portion having tab receiving openings spaced apart along the longitudinal axis of the support portions,
the method comprising the steps of: placing the filter medium element end on the support portion, placing an overlying portion over the filter medium element end and inserting each respective tab into a respective opening in the support portion, and then moving the overlying portion along the support portion, so that the tab second portion is then under the support portion, thus holding the cap on the support structure, with the filter medium element end trapped in between.