A method and a device for pressing, wherein an extraction agent is fed into the pressing chamber in addition to the mechanical pressing process. The extraction agent serves to extract oil from the press cake and simultaneously to cool the press cake and the pressed oil, so that a high product quality of press cake and oil and simultaneously a good oil yield can be realized.

A method and a device for pressing, wherein an extraction agent is fed into the pressing chamber in addition to the mechanical pressing process. The extraction agent serves to extract oil from the press cake and simultaneously to cool the press cake and the pressed oil, so that a high product quality of press cake and oil and simultaneously a good oil yield can be realized.

A juice-extracting drum includes a screw rotating inside. An inner module includes a hollow cylinder with an upper portion having the screw. A plurality of slits are formed as penetration holes having both lateral sides, an upper surface, and a lower surface along an interior circumference. An outer module is detachably coupled to the inner module, and includes a rib protruding in a radially interior direction on an interior circumference. The rib is inserted into the slit of the inner module when the outer module surrounds and combines the inner module. A predetermined fixed gap discharging juice extracted by the screw is formed lengthily in an up and down direction between the lateral side of the slit of the inner module and a lateral side of the rib of the outer module. The fixed gap is formed in a direction intersecting the screw blade.

A juice-extracting drum includes a screw rotating inside. An inner module includes a hollow cylinder with an upper portion having the screw. A plurality of slits are formed as penetration holes having both lateral sides, an upper surface, and a lower surface along an interior circumference. An outer module is detachably coupled to the inner module, and includes a rib protruding in a radially interior direction on an interior circumference. The rib is inserted into the slit of the inner module when the outer module surrounds and combines the inner module. A predetermined fixed gap discharging juice extracted by the screw is formed lengthily in an up and down direction between the lateral side of the slit of the inner module and a lateral side of the rib of the outer module. The fixed gap is formed in a direction intersecting the screw blade.

A juicer includes a housing having a top and including a juice spout on a periphery surface, and a support on a bottom. A filtering mechanism is disposed in the housing and includes a cylindrical wall having a meshed screen portion, and at least one annular flange on an outer surface. A rotating mechanism is disposed in the filtering mechanism, the rotating mechanism including a screw comprising a bolt portion and a spiral portion formed on a peripheral of the bolt portion and extending spirally upward to form a top free end. A bottom of the rotating mechanism is coupled to an electric motor and rotatable about a rotating axis of the electric motor. The top free end of the screw is located at an eccentric position relative to the rotating axis. A feed chute is disposed on and engaging the top of the housing. A bottom surface of the rotating mechanism is rested upon the support of the housing.

A juicer includes a housing having a top and including a juice spout on a periphery surface, and a support on a bottom. A filtering mechanism is disposed in the housing and includes a cylindrical wall having a meshed screen portion, and at least one annular flange on an outer surface. A rotating mechanism is disposed in the filtering mechanism, the rotating mechanism including a screw comprising a bolt portion and a spiral portion formed on a peripheral of the bolt portion and extending spirally upward to form a top free end. A bottom of the rotating mechanism is coupled to an electric motor and rotatable about a rotating axis of the electric motor. The top free end of the screw is located at an eccentric position relative to the rotating axis. A feed chute is disposed on and engaging the top of the housing. A bottom surface of the rotating mechanism is rested upon the support of the housing.

A dewatering device for removing entrained solids and debris from a liquid stream includes a housing defining a chamber. An auger has a first end positioned outside the chamber and a second end positioned inside the chamber. A compaction zone includes a first tube fixed to the housing. A second tube is slidably mounted on the first tube. A partition is secured to the second tube and has a first longitudinal position in the housing allowing a solids plug to form in the compaction zone and a second longitudinal position in the housing preventing the solids plug from forming in the compaction zone.

A dewatering device for removing entrained solids and debris from a liquid stream includes a housing defining a chamber. An auger has a first end positioned outside the chamber and a second end positioned inside the chamber. A compaction zone includes a first tube fixed to the housing. A second tube is slidably mounted on the first tube. A partition is secured to the second tube and has a first longitudinal position in the housing allowing a solids plug to form in the compaction zone and a second longitudinal position in the housing preventing the solids plug from forming in the compaction zone.

A casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.

A casing that squeezes sludge floc at one end portion, a screw shaft, a first screw blade spirally provided on an outer peripheral surface of the screw shaft, and a second screw blade provided side by side along a longitudinal direction of the screw shaft with the first screw blade with a predetermined interval from the first screw blade, are included. In the casing, a concentration zone and a separated liquid zone, which are substantially divided from each other by the first screw blade and the second screw blade, are formed. By rotation of the screw shaft, the sludge floc is squeezed in the concentration zone to be separated into sludge and separated liquid, and the separated liquid is moved rearward in the separated liquid zone to be discharged, while the sludge is discharged outside.