초록 ▼

The invention relates an apparatus for the dewatering of sludge and similar substances with a sludge chamber (20) provided with filter areas (25) having at least one sludge inlet being connected to a device (3) creating a hydrostatic filtration pressure. The sludge chamber is formed by pressure plat

The invention relates an apparatus for the dewatering of sludge and similar substances with a sludge chamber (20) provided with filter areas (25) having at least one sludge inlet being connected to a device (3) creating a hydrostatic filtration pressure. The sludge chamber is formed by pressure plates (22, 23) which can be pressed against each other to create an additional mechanical dewatering pressure by high pressure generators (33). Further there is provided a predewatering stage (2) containing filter areas which is forming a compensation container (5) and which is connected to a continuous sludge feed (6). The device (3) for creating the hydrostatic filtration pressure is formed as one or more syringe-like piston cylinder units (14) of preferably as one or more containers being changeable in volume. These have a sludge inlet connected to the predewatering device (2) and a sludge outlet (17) connected with the sludge chamber (20), wherein at the sludge inlet and at the sludge outlet there are provided closing and control valves (21) which are alternately operable.

대표청구항 ▼

[ What is claimed:] [1.] Apparatus for dewatering of sludge and similar substances comprising:pressure plates forming a sludge chamber provided with filter areas and having at least one sludge inlet,means connected to said at least one sludge inlet and creating a hydrostatic filtration pressure,high

[ What is claimed:] [1.] Apparatus for dewatering of sludge and similar substances comprising:pressure plates forming a sludge chamber provided with filter areas and having at least one sludge inlet,means connected to said at least one sludge inlet and creating a hydrostatic filtration pressure,high pressure generators by which at least one of the pressure plates is movable to decrease the volume of the sludge chamber after achieving a hydrostatic dewatering pressure to create an additional mechanical dewatering pressure,a predewatering stage containing filter areas forming a compensation container, anda continuous sludge feed to which the predewatering stage is connected, the predewatering stage additionally being connected to the means connected to said at least one sludge inlet and creating the hydrostatic filtration pressure,wherein the filter areas of the sludge chamber, for removing filter cake after opening the pressure plates, are movable with respect to the sludge chamber,wherein the means connected to said at least one sludge inlet and creating the hydrostatic filtration pressure is at least one container which is variable in volume,wherein the sludge passes axially through the at least one container, andwherein an axis of the at least one container is congruent with axes of a sludge discharge line of the predewatering stage and of a sludge feed-line of the sludge chamber.