A hermetically sealed horizontal washing decanter centrifuge for enhanced drilling fluid recovery and drilled solids washing. A process and apparatus for liquid phase-solid phase separation of oil based drilling mud-containing drill cuttings is described including flowing the drilling mud-containing drill cuttings into a horizontal washing decanter wherein the stresses imposed within the decanter act as a wash as the diluent and oil based drilling mud move away from the drill cuttings. Diluent is added prior to flowing the drilling mud containing drill cutting to the hermetically sealed horizontal washing decanter centrifuge. The entire process is performed in a gas-tight environment preventing escape of diluent from the process into the external atmosphere and preventing introduction of gases into the process from the external atmosphere.

An apparatus (1) and method for treating contaminated waste water (2). The apparatus comprises a heater (30), a feed apparatus (11, 12, 13, 14), for supplying contaminated waste water (2) to the heater (30) and a centrifuge (50, 60) downstream of the heater (30). A heat exchanger (20) is also provided which has a first channel (22) and a second channel (24). The first channel (22) is connected in a flow path extending between the feed apparatus (11, 12, 13, 14) and the centrifuge (50, 60); and a waste water outlet (9) from the main centrifuge (60) is fluidly coupled to an inlet of the second channel (24) of the heat exchanger (20).

An apparatus (1) and method for treating contaminated waste water (2). The apparatus comprises a heater (30), a feed apparatus (11, 12, 13, 14), for supplying contaminated waste water (2) to the heater (30) and a centrifuge (50, 60) downstream of the heater (30). A heat exchanger (20) is also provided which has a first channel (22) and a second channel (24). The first channel (22) is connected in a flow path extending between the feed apparatus (11, 12, 13, 14) and the centrifuge (50, 60); and a waste water outlet (9) from the main centrifuge (60) is fluidly coupled to an inlet of the second channel (24) of the heat exchanger (20).

In a bearing arrangement of a screw of a solid bowl screw centrifuge, having a centrifuge axis, a first axial bearing and a second axial bearing, which are provided for taking up an axial force of the screw, an elastic member is provided, on which the second axial bearing is supported for supporting the axial force of the screw in the axial direction.

In a bearing arrangement of a screw of a solid bowl screw centrifuge, having a centrifuge axis, a first axial bearing and a second axial bearing, which are provided for taking up an axial force of the screw, an elastic member is provided, on which the second axial bearing is supported for supporting the axial force of the screw in the axial direction.

A method for producing a dewatered gluten-containing fraction involves providing a gluten-containing fraction, concentrating the gluten-containing fraction by centrifugal processing according to a determined dry substance content, adjusting the pH value and the temperature of the concentrated gluten-containing fraction by a temperature-control and metering unit, and dewatering the concentrated gluten-containing fraction.

An apparatus for the separation of solid component, heavy and light density liquid components of a slurry, comprising a decanter section comprising a screw conveyor enclosed by a decanter house and a centrifuge section comprising a disc centrifuge. The centrifuge section is enclosed by a centrifuge house, the decanter section and centrifuge section are separated by an intersection comprising a stationary impeller for transmitting liquid from the decanter section to the centrifuge section. The screw conveyor, decanter house and centrifuge house are rotatable around a central axial shaft. The decanter section an axially arranged inlet and a solid material outlet, the centrifuge section comprises an axially central first liquid outlet for lighter liquid and second liquid outlets for heavier liquid. The second liquid outlets can be arranged on an end plate of the centrifuge house, with the radial distance of the second outlets from the central axis being adjustable.

An apparatus for the separation of solid component, heavy and light density liquid components of a slurry, comprising a decanter section comprising a screw conveyor enclosed by a decanter house and a centrifuge section comprising a disc centrifuge. The centrifuge section is enclosed by a centrifuge house, the decanter section and centrifuge section are separated by an intersection comprising a stationary impeller for transmitting liquid from the decanter section to the centrifuge section. The screw conveyor, decanter house and centrifuge house are rotatable around a central axial shaft. The decanter section an axially arranged inlet and a solid material outlet, the centrifuge section comprises an axially central first liquid outlet for lighter liquid and second liquid outlets for heavier liquid. The second liquid outlets can be arranged on an end plate of the centrifuge house, with the radial distance of the second outlets from the central axis being adjustable.

A method of producing a low-fat product from a starting material made of a fat and/or oil containing plant- or animal item includes providing the starting material at a temperature of at least 35° C. and extracting a greater part of the extractable oil and/or fat originally contained in the plant or animal item from the starting material using a first decanter centrifuge. The first decanter centrifuge leaves a residue of solids and liquids. The residue forms the low-fat product.

A method of producing a low-fat product from a starting material made of a fat and/or oil containing plant- or animal item includes providing the starting material at a temperature of at least 35° C. and extracting a greater part of the extractable oil and/or fat originally contained in the plant or animal item from the starting material using a first decanter centrifuge. The first decanter centrifuge leaves a residue of solids and liquids. The residue forms the low-fat product.