Patent ID: 7425260

Claim:
A separation passageway module for suspension separation, comprising: a plurality of inclined plate passageways comprised by a plurality of inclined parallel plates wherein said inclined plate passageways have an opening at the lower end, suspension flows into said inclined plate passageways from the lower end to carry out settling separation and to thereby generate clear liquid at the upper end of said inclined plate passageways; at least one suction pipe, one end which is connected to the upper end of said inclined plate passageways for drawing said clear liquid; and, a buoyancy regulator for adjusting buoyant force of the separation passageway module, said buoyancy regulator comprises a ballast tank, a liquid injection/drainage opening provided underneath said ballast tank, a gas inhaling/expelling pipe connected to the upper portion of said ballast tank, and a gas inhaling/expelling valve provided on said gas inhaling/expelling pipe, so as to make buoyant force and gravity of the separation passageway module have a specific relationship.