Systems and methods for extracting particulate from raw slurry material

A method of separating feed material into first solids and second solids comprising the steps of:

• providing a housing defining a collection chamber and a weir edge;
• providing a drum assembly comprising
• a drum member defining a perforated cylindrical wall, a drum inlet port, a drum outlet opening, and a drum chamber;
• and
• at least one screw flight within the drum member;
• arranging feed material within the collection chamber such that the weir edge defines a liquid level;
• supporting the drum assembly at least partly within the collection chamber such that
• at least a portion of the screw flight is below the liquid level, and
• the drum outlet opening is above the liquid level;
• and
• rotating the drum assembly relative to the housing while introducing feed material into the drum chamber through the drum inlet port such that
• the first solids of the feed material exit the drum assembly through the perforated cylindrical wall of the drum member and collect at the bottom of the collection chamber, and
• the second solids float on the feed material such that the screw flight displaces the second solids floating on the feed material from the inlet port and to the drum outlet opening to cause such that the second solids of the feed material exit the collection chamber through the drum outlet opening.

A separation system for separating feed material comprising liquids, sand, and floating solids, the separation system comprising:

• a housing defining a collection chamber and a weir edge, where the weir edge defines a liquid level of feed material within the collection chamber;
• a drum assembly comprising
• a drum member defining a perforated cylindrical wall, a drum inlet port, a drum outlet opening, and a drum chamber, and
• at least one screw flight within the drum member;
• and
• a drive assembly for rotating the drum assembly relative to the housing;
• wherein
• the drum assembly is at least partly arranged within the collection chamber such that
• at least a portion of the screw flight is below the liquid level along an entire length of the screw flight, and
• the drum outlet opening is above the liquid level;
• as the drum assembly rotates relative to the housing, feed material is introduced into the drum chamber through drum inlet port such that
• the first liquids and sand of the feed material exit the drum assembly through the perforated cylindrical wall of the drum member and collect at the bottom of the collection chamber, and
• the floating solids float on the feed material such that the screw flight displaces the floating solids of the feed material from the inlet port and to the outlet opening to cause the floating solids of the feed material to exit the collection chamber through the drum outlet opening.