US 2018/0345178 A1 · ROTARY AND LATERALLY TRANSLATING WASHER FOR FILTER PRESSES AND METHODS THEREOF

Abstract

Various embodiments of a filter (31 38, 42) are disclosed. According to some embodiments, filter (31, 38, 42) may have a frame (34) and washing means operatively coupled to the frame (34) which is configured to wash one or more filter cloths simultaneously, the filter cloths being attached to a respective number of filter plate assemblies (13) which are supported by the frame (34). The washing means may comprise a laterally traversing washer mechanism, the laterally traversing washer mechanism being configured to move (8) along a lateral axis (35) of the filter (31, 38, 42) from a first side of the one or more filter cloths to a second side of the one or more filter cloths. In some embodiments, the washing means may be operatively coupled to the frame (34) via a track (3) and a washer carriage (1) on the track (3). In some embodiments, the washer carriage may be further provided with means, for example, to simultaneously shake one or more filter plate assemblies (13), without limitation. Methods of filtering slurry comprising the steps of moving (8) a laterally traversing washer mechanism in a direction along a lateral axis (35) of a filter (31, 38, 42); rotating at least one spray bar (2); and providing wash water to the at least one spray bar (2) are further disclosed.

Claims10

Dependent claims

1-42. (canceled)

A filter having a frame supporting a track, and a washer carriage on the track which is configured to wash one or more filter cloths simultaneously, the filter cloths being attached to a respective number of filter plate assemblies which are supported by the frame, the washer carriage comprising a laterally traversing washer mechanism, the laterally traversing washer mechanism being configured to move along a lateral axis of the filter from a first side of the one or more filter cloths to a second side of the one or more filter cloths during a first single pass wash cycle, the laterally traversing washer mechanism being further configured to move along a lateral axis of the filter from the second side of the one or more filter cloths to the first side of the one or more filter cloths during a second single pass wash cycle;

wherein the laterally traversing washer mechanism further comprises washing means;
wherein the washing means comprises at least one spray bar which is configured to pivot about a length axis of the filter, via an actuator;
wherein the angular direction of pivot of the at least one spray bar about the length axis of the filter changes after the washer carriage indexes to a different position along the length axis of the filter;
wherein during the first single pass wash cycle, the at least one spray bar rotates or pivots in only a first angular direction of pivot as the laterally traversing washer mechanism moves along a lateral axis of the filter from the first side of the one or more filter cloths to the second side of the one or more filter cloths, during the during single pass wash cycle;
wherein after the first single pass wash cycle, the washer carriage indexes to a different position along the length axis of the filter;
wherein after the washer carriage indexes to a different position along the length axis of the filter, the at least one spray bar rotates or pivots in only a second angular direction of pivot as the laterally traversing washer mechanism moves along a lateral axis of the filter from the second side of the one or more filter cloths to the first side of the one or more filter cloths, during the second single pass wash cycle;
wherein the first single pass wash cycle cleans a first number of filter cloths;
wherein the second single pass wash cycle cleans a second number of filter cloths;
wherein the first number of filter cloths excludes the second number of filter cloths and the second number of filter cloths excludes the first number of filter cloths;
and
wherein the second angular direction of pivot s opposite the first angular direction of pivot.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/571,275Filed 5 May 2016

Priority

5 May 2015

Published

6 Dec 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

B01D 25/386
By moving parts, e.g. scrapers, contacting stationary filter elements sprayers: nozzles
B01D 25/164
Filter presses, i.e. of the plate or plate and frame type: chamber-plate presses, i.e. the sides of the filtering elements being clamped between…
B01D 25/322
Removal of the filter cakes: specially for chamber filter presses
B01D 25/346
By moving, e.g. rotating, the filter elements: by vibration

Rotary and laterally translating washer for filter presses and methods thereof

Life of this patent

Rotary and laterally translating washer for filter presses and methods thereof

Life of this patent

Abstract

Claims10