Hydraulic motor drive for fermentation plant - with control system measuring operational data for optimal efficiency

摘要

A drive for the agitating and/or gasification mechanism of a fermentation vessel, esp. for the prodn of microorganisms in a nutrient mixt. comprises a compact hydraulic motor assembled directly to the fermenter shaft, and powdered by a motor driven pump. A control unit alters the stroke of the pump to vary the speed of the hydraulic motor and uses any of a range of measurements, such as, the amt of oxygen dissolved or circulated, the amt of carbon dioxide in the atmos of the vessel, the viscosity and/or foaming of the unutrient, the difference of input and output press. of the hydraulic medium, etc., to determine the necessary action.