DEVICE FOR DEHYDRATION AND PACKING OF DRILLING OIL SLUDGE Russian patent published in 2019 - IPC E21B21/06 

FIELD: waste processing and disposal.

SUBSTANCE: invention relates to disposal of drill cuttings, as well as to processing of wastes into construction materials. Device includes a filtering column for sludge pulp dehydration installed on a frame-base for subsequent loading into sealed bags-containers or loading into a dump transport facility. Column is equipped with a pneumatic hose which, after filling the column with sludge pulp, is filled with compressed air. Sleeve presses pulp to filtration walls of column, which provides rapid dehydration of slurry pulp for subsequent shipment by dump transport or packing in sealed bags-containers for further use as building blocks or disposal (burial) on underwater dredging areas in offshore drilling. After dehydration, the sludge is fed through a loading unit of the filter column into a sealed bag-container pouch arranged under the column on a sliding wheel carriage. Bags-container have external power shell of strong synthetic fabrics reinforced with slings and equipped with rigging slings for unloading from carriage, as well as loops for fixation of empty bags on carriage. Inner sealed shell is made of co-extrusion polyethylene film with barrier polyester layer or without it by thermal welding method and is a cubic bag with a conical upper part ending with an open hose for connection to the loading branch pipe of the filter column and subsequent sealing of the sludge inside the container shell.

EFFECT: increased rate and depth of filtration.

6 cl, 3 dwg