Apparatus for inhibiting fines carryover
AssigneeCameron International Corporation
InventorsJames Delves, David Parkinson, Simon Brock
Life of this patent
Estimating the term…
Abstract
Apparatus for inhibiting fines carryover in the form of a settlement tank comprising: a filter which divides the tank into upper and lower portions; a fluid inlet in the lower portion for admitting into the tank a fluid with entrained solids; and a fluid outlet in the upper portion through which filtered fluid can leave the tank. The filter comprises filter media supported on a permeable wall, the wall including a filter media outlet which is normally closed, and opening means for opening the filter media outlet to allow the filter media to discharge into the lower portion of the tank. The invention also relates to a method of refilling the filter with filter media
Claims24
A tank having:
- a filter which divides the tank into upper and lower portions;
- a fluid inlet in the lower portion for admitting into the tank a fluid with entrained solids;
- and
- a fluid outlet in the upper portion through which filtered fluid can leave the tank,
- characterized in that the filter comprises:
- filter media supported on a permeable wall, the wall including a filter media outlet which is normally closed;
- and
- opening means for opening the filter media outlet to allow the filter media to discharge into the lower portion of the tank.
A method of refilling a filter in a tank with filter media, the method comprising the steps of:
- (a) discharging the used filter media into a lower portion of the tank;
- (b) fluidising the used filter media and transporting it out of the tank using a fluidising unit;
- and
- (c) refilling the filter with filter media.
23-24. (canceled)
A tank having:
- a filter which divides the tank into upper and lower portions;
- a fluid inlet in the lower portion for admitting into the tank a fluid with entrained solids;
- and
- a fluid outlet in the upper portion through which filtered fluid can leave the tank,
- characterized in that the filter comprises:
- filter media supported on a permeable wall, the wall including a filter media outlet which is normally closed, where the wall is substantially conical, tapering downwardly to the filter media outlet, and where the wall comprises a feature selected from the group consisting of perforations in the wall, a mesh sheet, a plurality of individual screens and combinations thereof;
- and
- opening means for opening the filter media outlet to allow the filter media to discharge into the lower portion of the tank.
Dependencies are inferred from the claim text.