US 2013/0256236 A1 · PURIFYING DEVICE FOR SLUDGE UNDER WATER AND METHOF FOR OPERATING THE SAME

Abstract

The invention is directed to a purifying device for sludge under water and a method for operating the same. The device includes a main fixing frame having an accommodating portion assess to the outside, a hollow liquid container in the accommodating portion, wherein the liquid container is provided with a liquid-flow hole and at least a backwash hole, multiple filters on the liquid container, and a pump connected to the liquid-flow hole at the liquid container through a liquid pipeline. The method includes steps: moving the liquid container having the filters to an area having a liquid to be filtered; leading the liquid to flow into the liquid container through the filters filtering out solid particles contained in the liquid; and leading a fluid to flow into the liquid container such that the filters can be backwashed accompanying with an external cleaning device if the filters are clogged.

Claims11

Dependent claims

A purifying device for sludge under water, comprising:

a main fixing frame having an accommodating portion assess to the outside;
a hollow liquid container in the accommodating portion of the main fixing frame, wherein a liquid-flow hole is at the liquid container;
at least a filter on the liquid container, wherein the filter is provided with an outer surface filtering out small particles and a filtrate discharging hole communicating with the liquid-flow hole and a backwash hole at the liquid container;
and
a pump connected to the liquid-flow hole at the liquid container through a liquid pipeline such that a negative pressure created from the outer surface to the filtrate discharging hole is applied to the filter.

2 more elements

A method for operating a purifying device for sludge under water, comprising:

a. moving a liquid container having a filter to an area having a liquid to be filtered so as to fix a filtering device;
b. performing a filtering process comprising leading the liquid to flow into the liquid container through the filter filtering out solid particles contained in the liquid, wherein the solid particles are attached to a surface of the filter, using a hydraulic pressure of the area and a negative pressure created by a pump extracting a filtrate;
and
c. performing a filtering determining process comprising determining if solid particles in the area are filtered out to a tolerance level, wherein performing the filtering process is repeated if solid particles in the area are determined not to be filtered out to the tolerance level, while all of the processes is stopped if solid particles in the area are determined to be filtered out to the tolerance level.

1 more element

Dependencies are inferred from the claim text.

Purifying device for sludge under water and methof for operating the same

Life of this patent

Purifying device for sludge under water and methof for operating the same

Life of this patent

Abstract

Claims11