A screw press liquid separator includes a perforated screw cradle disposed within a housing. A screw is formed on a shaft within the screw cradle. A second portion of the screw extends to a discharge end and is completely surrounded by a compression portion of the cradle. A first portion of the shaft has a first diameter extending the length of the screw, and a second portion of the shaft within the compression portion and extending past the output end of the screw has a second larger diameter. A transition portion of the shaft tapers from the second diameter to the first diameter. Discharge guides extend from the discharge end of the housing. Discharge doors are pivotally mounted to the discharge end of the housing and are biased to close against the discharge end of the housing. Paddles radially extend from the shaft outside of the discharge doors.

A screw press liquid separator includes a perforated screw cradle disposed within a housing. A screw is formed on a shaft within the screw cradle. A second portion of the screw extends to a discharge end and is completely surrounded by a compression portion of the cradle. A first portion of the shaft has a first diameter extending the length of the screw, and a second portion of the shaft within the compression portion and extending past the output end of the screw has a second larger diameter. A transition portion of the shaft tapers from the second diameter to the first diameter. Discharge guides extend from the discharge end of the housing. Discharge doors are pivotally mounted to the discharge end of the housing and are biased to close against the discharge end of the housing. Paddles radially extend from the shaft outside of the discharge doors.

The invention relates to a discharging device of a press screw separator for separating solid components from a slurry containing solid and liquid components, comprising a tube to be arranged at the solids outlet of the press screw separator, a closing cone, which can be moved into and out of the tube, to form an outlet gap between the tube and the closing cone, an actuator for applying a counterforce to the closing cone, and an actuator control unit, which is configured to control the actuator based on a variable operating parameter signal of an electric motor of the press screw separator.

The invention relates to a discharging device of a press screw separator for separating solid components from a slurry containing solid and liquid components, comprising a tube to be arranged at the solids outlet of the press screw separator, a closing cone, which can be moved into and out of the tube, to form an outlet gap between the tube and the closing cone, an actuator for applying a counterforce to the closing cone, and an actuator control unit, which is configured to control the actuator based on a variable operating parameter signal of an electric motor of the press screw separator.

A raw-material supply device for supplying a biomass raw material under pressure, wherein the device is provided with: a screw body, provided inside a screw feeder and adapted for compressing, rotating, and transporting the powdered biomass raw material using a motor from a normal-pressure feed section for the fed biomass raw material to a high-pressure discharge section; and a pressing plug provided on the tip section side of the screw body, the pressing plug having a plug tip for maintaining a high-temperature/high-pressure field against the discharge force of compressed consolidated biomass. The interior of the screw feeder comprises a raw-material feed region for feeding the biomass raw material in the raw-material transport direction, a raw-material compression region for compressing the biomass raw material, a raw-material consolidation region for consolidating the biomass raw material in the form of a cork, and a material seal section for maintaining the high-pressure field using the consolidated biomass.

A raw-material supply device for supplying a biomass raw material under pressure, wherein the device is provided with: a screw body, provided inside a screw feeder and adapted for compressing, rotating, and transporting the powdered biomass raw material using a motor from a normal-pressure feed section for the fed biomass raw material to a high-pressure discharge section; and a pressing plug provided on the tip section side of the screw body, the pressing plug having a plug tip for maintaining a high-temperature/high-pressure field against the discharge force of compressed consolidated biomass. The interior of the screw feeder comprises a raw-material feed region for feeding the biomass raw material in the raw-material transport direction, a raw-material compression region for compressing the biomass raw material, a raw-material consolidation region for consolidating the biomass raw material in the form of a cork, and a material seal section for maintaining the high-pressure field using the consolidated biomass.

A single flight screw, a single flight high pressure screw pump and the use of the pump in a compactor for compacting and dewatering debris commonly found in waste water. The bore, screw diameter and the flight spacing are constant and the compression force is mostly axial. The work is done at the very end of the screw.

A single flight screw, a single flight high pressure screw pump and the use of the pump in a compactor for compacting and dewatering debris commonly found in waste water. The bore, screw diameter and the flight spacing are constant and the compression force is mostly axial. The work is done at the very end of the screw.

A method for treating a food product of vegetable origin, including the steps of pushing, by means of a pushing device, the food product within a treatment cavity. This is defined between an internal surface of a fixed hollow body, or stator, and an external surface having conical shape of a rotor, and has an inlet mouth through which the food product of vegetable origin is introduced within the same and an outlet mouth through which the treated vegetable food product exits the cavity. The treatment cavity has a size which decreases going from the inlet mouth to the outlet mouth. It is provided a rotation of the rotor within the stator about a rotation axis. The combination of the rotation and of the pushing that are carried out by the machines produce a partial crushing of the food product of vegetable origin within the treatment cavity.

A method for treating a food product of vegetable origin, including the steps of pushing, by means of a pushing device, the food product within a treatment cavity. This is defined between an internal surface of a fixed hollow body, or stator, and an external surface having conical shape of a rotor, and has an inlet mouth through which the food product of vegetable origin is introduced within the same and an outlet mouth through which the treated vegetable food product exits the cavity. The treatment cavity has a size which decreases going from the inlet mouth to the outlet mouth. It is provided a rotation of the rotor within the stator about a rotation axis. The combination of the rotation and of the pushing that are carried out by the machines produce a partial crushing of the food product of vegetable origin within the treatment cavity.