Conveyor-belt filtering device for mechanically cleaning a liquid

A conveyor-belt filtering device adapted for mechanically cleaning a liquid flowing in a channel and contaminated with solids, the conveyor-belt filtering device comprising:

• an endless filtering belt having at least one filtering element adapted to retain solids present in and contaminating the liquid;
• a frame;
• a lower deflection apparatus;
• and
• at least one upper deflection apparatus,
• wherein the endless filtering belt is guided and moveable via the lower deflection apparatus and the upper deflection apparatus, and
• wherein the endless filtering belt, the lower deflection apparatus and the upper deflection are disposed on the frame, the endless filtering belt has at least one collecting element adapted for collecting inorganic or mineral foreign solids including sand, stones, and pebbles, which are present in the liquid, in an area of the lower deflection apparatus disposed in a bottom area of the channel, and differ from solids present in and contaminating the liquid and
• wherein
• (a) the at least one filtering element has a surface adapted for adhering and discharging solids,
• (b) the at least one collecting element has a collecting bag adapted for collecting and discharging the foreign solids, the collecting bag having an opening adapted to allow the foreign solids to enter the collecting bag,
• (c) the conveyor-belt filtering device comprises a bottom seal in the area of the lower deflection apparatus, the bottom seal at least partially making contact with the endless filtering belt and being adapted for preventing the liquid from circumnavigating the conveyor-belt filtering device in the area of the lower deflection apparatus, and
• (d) the bottom seal is able to be engaged in such a manner for unburdening the bottom seal with the at least one collecting element when the at least one collecting element passes the bottom seal owing to a movement caused by the endless filtering belt so that the foreign solids present on the bottom seal are collected by means of the at least one collecting element.