Automatic adjustable shredder for sewers

摘要

The invention relates to an automatic controllable adjustable shredder for industrial and non-industrial (e.g. hospitals, communities, allotments, etc.) sewers. The shredding machine connected in series or in parallel to the foul water drain pipes (liquids 15, solids 14) is capable of grinding into small pieces any object whose dimensions could obstruct the drainage pipes (e.g. solid refuse, textiles, clothing, etc.) in order to promote the flow as a whole and assist ecological treatment. The pipe 2, which ends in a funnel 3 carrying the foul water mixed with refuse is connected at the side to a tube 4 containing perforations 5 in its side walls, with one end to which the liquid 15 drains out and the other for solids 14, while an internal Archimedean screw 6 rotates and pushes the solids towards the shredder 8, which will reduce them to smaller dimensions and empty them under gravity onto the liquid below contained in the tank 1. IMAGE