US 11,833,453 B2 · Filter press and method for separating the solid components from the liquid components of a slurry

Abstract

A filter press is disclosed for separating solid components from liquid components of a slurry. The filter press includes side beams and a plurality of filter plates oriented at right angles to the longitudinal direction of the side beams. The filter plates are adapted to move along the side beams. A stationary end is arranged on one end of the side beams and a movable head is adapted to transport the filter plates along the side beams. The filter press includes a press system adapted to exert a closing pressure on the filter plates to press the filter plates against each other. The press system further includes at least one electrically driven actuator adapted to generate an axially directed force on the filter plates by the movable head. The disclosure also relates to a method for separating the solid components from the liquid components of a slurry.

Claims34

Dependent claims

A filter press for separating solid components from liquid components of a slurry, comprising:

a press frame;
side beams;
a plurality of filter plates oriented at right angles to a longitudinal direction of the side beams wherein said filter plates are adapted to move along said side beams;
a stationary end arranged on or near one end of the side beams;
a movable head adapted to transport said filter plates along the side beams;
and
a press system adapted to exert a closing pressure on said filter plates to press the filter plates against each other,
wherein the press system comprises at least one electrically driven actuator driven by an electrical drive means to generate an axially directed force which is exerted on the filter plates by means of the movable head, wherein said actuator comprises a planetary screw assembly, and an electrical drive unit is arranged to drive said movable head during transportation of the filter plates, wherein said electrical drive unit is separate from said electrically driven actuator and said electrical drive means.

5 more elements

A method for separating solid components from liquid components of a slurry using a filter press comprising a plurality of filter plates, said method comprising the steps of:

placing said filter press in an operating position by transporting said filter plates towards a stationary end by a movable head;
exerting a closing pressure on said filter plates by a press system that is adapted to press said filter plates against each other by electrically driving of at least one actuator comprising at least one planetary screw assembly and adapted to generate an axially directed force which is exerted on the filter plates by means of the movable head;
injecting the slurry between the filter plates;
and
separating the solid components from the liquid components of the slurry located between the filter plates,
wherein the step of exerting a closing pressure on said filter plates by the press system comprises driving said at least one planetary screw assembly by an electrical drive means, driving said movable head during transportation of the filter plates with an electrical drive unit, said electrical drive unit being separate from said electrically driven actuator and said electrical drive means.

3 more elements

Dependencies are inferred from the claim text.

Filter press and method for separating the solid components from the liquid components of a slurry

Life of this patent

Filter press and method for separating the solid components from the liquid components of a slurry

Life of this patent

Abstract

Claims34