Press for treating waste product has extrusion section with piston, with end staying inside extrusion chamber during retreat of piston, and shutter, moving along vertical slide

摘要

Extrusion section comprises piston (19) actuated by jack (20), and shutter (21) able to close and open upstream side (5a) of extrusion chamber (5). Shutter is wall moving along vertical slide (22), is associated to jack (23), and has upstream end panel (1) of press as resting face. During retreat of piston, end of piston (19a) stays inside extrusion chamber, near downstream side (5b) of chamber. Piston has diameter lower than inner diameter of extrusion chamber. Downstream side of extrusion chamber is closed with wall (15) having aperture through which piston is placed.