Continuous high-pressure filter press for dewatering sludge

摘要

In a continuous high-pressure filter press for dewatering sludge having a continuously moved sludge chamber space (102) and a multiplicity of hydraulic cylinders (118) which compress the sludge chamber space (102), are arranged in the region of the high-pressure dewatering zone along the path of movement of the sludge chamber space (102) and move here together with this sludge chamber space, to control the pressure of the hydraulic cylinders in dependence on the position of the respective hydraulic cylinder within the high-pressure dewatering zone for any hydraulic cylinder pressure to be selected (T, P1, P2, P3), a ring pipe (136, 130, 132, 134) supplying each of the hydraulic cylinders (118) is provided which is moved together with the hydraulic cylinders (118). Between each ring pipe (130 to 136) and each hydraulic cylinder (118) is arranged in each case a control valve (140, 142, 144, 146), mechanically actuated via a control ring (154), which control valve is moved together with the hydraulic cylinders (118) and the ring pipes (130 to 136). Stationary, but individually positionable operating fingers (156) actuate the operating elements of the control valves at the desired positions when the sludge chamber space passes through the high-pressure dewatering zone. IMAGE