Granular material conveying apparatus with perforated center tube
OwnerSylvan H. Simeinventor
Life of this patent
Estimating the term…
Abstract
A granular material conveying system for conveying granular materials and filtering fine particles from the granular materials is configured for rotatably conveying granular materials about an axis in a longitudinal direction along the axis. The system includes a hollow center tube coaxially centered about the axis. The center tube includes an outlet, an exterior, an interior and a plurality of perforations communicating between the exterior and the interior. As the granular materials are rotatably conveyed along and around the center tube, fine particles from granular materials migrate through the perforations into the center tube and are thereby filtered from the granular material.
Claims16
A granular conveying system for conveying granular materials and filtering fine particles from the granular materials, the system comprising:
- an auger for conveying the granular materials and for filtering fine particles from the granular materials, the auger including:
- a hollow center tube, the center tube having an outlet, an exterior, an interior and a plurality of perforations communicating between the exterior and the interior;
- and
- a spiral auger flight surrounding the exterior of the center tube so that rotation of the spiral auger flight conveys granular materials around the exterior of the center tube so that fine particles are filtered into the interior of the hollow center tube from the granular materials;
- and
- means for discharging fine particles from the interior of the center tube out the outlet of the center tube.
A granular conveying system for conveying granular materials and filtering fine particles from the granular materials, the system comprising:
- a hollow center tube, the center tube having an outlet, an exterior, an interior and a plurality of perforations for communicating between the exterior and the interior;
- an elongated outer tube coaxially surrounding the center tube, the outer tube having an inlet for receiving granular materials and an outlet for discharging filtered granular materials;
- means coupled to the auger system for rotatably conveying granular materials between the center tube and the outer tube so that fine particles are filtered into the interior of the center tube;
- and
- means for discharging fine particles from the interior of the center tube out the outlet of the center tube.
A granular conveying system for conveying granular materials and filtering fine particles from the granular materials, the system comprising:
- an elongated outer tube having an inlet for receiving granular materials and an outlet for discharging filtered granular materials;
- an auger for conveying the granular materials within the outer tube and for filtering fine particles from the granular materials, the auger including:
- a hollow center tube coaxially positioned within the outer tube, the center tube having an outlet, an exterior, an interior and a plurality of perforations communicating between the exterior and the interior;
- and
- a spiral auger flight surrounding the exterior of the center tube;
- and
- means coupled to the spiral auger flight for rotating the spiral auger flight within the outer tube so that fine particles are filtered into the interior of the center tube;
- and
- means for discharging fine particles from the interior of the center tube out the outlet of the center tube.
An auger attachment for being mounted to an existing auger having a rotatable center tube and a spiral auger flight, the attachment comprising:
- a hollow center tube, the center tube having an outlet, an exterior, an interior, and a plurality of perforations for communicating between the exterior and the interior;
- and
- means for coupling the hollow center tube to the center tube of the existing auger so that granular material is rotatably conveyed about the hollow center tube to filter fine particles from the granular material.
In a granular material conveying apparatus configured for rotatably conveying granular material about an axis in a longitudinal direction along the axis, an improvement comprising:
- a hollow center tube coaxially centered about the axis, the center tube having an outlet, an exterior, an interior, and a plurality of perforations for communicating between the exterior and the interior so that as the granular material is rotatably conveyed about the hollow center tube, fine particles from the granular material migrate through the perforations into the interior of the hollow center tube.
A method for filtering fine particles from granular materials, the method comprising:
- supplying granular material adjacent an exterior of a hollow center tube having a plurality of perforations communicating between the exterior and an interior of the hollow center tube;
- rotatably conveying the granular material around the hollow center tube so that fine particles from the granular material migrate through the perforations into the interior of the hollow center tube;
- and
- discharging the fine particles from the interior of the center tube out an outlet of the center tube.
Dependencies are inferred from the claim text.