公开(公告)号：US3829584A

公开(公告)日：1974-08-13

申请号：US28249772

申请日：1972-08-21

Applicant: ECONOMICS LAB

Inventor： SEIBERLING D

IPC: A01J11/10 ,  A23C9/15 ,  A23C7/00 ,  A23C13/02

CPC classification number: A01J11/10 ,  A23C9/1508

Abstract: A continuous on-stream milk standardizing and blending system. Whole milk having a known fat content is introduced into a centrifugal separator for separating the milk into its skim and cream components; the milk entering the separator through a conduit having a flow meter positioned therein for providing a digital output signal corresponding to the flow rate therethrough. A digital control unit compares the input signal from the milk flow meter with an input signal received from a similar flow meter positioned in the cream conduit downstream from an air-operated throttling valve; the control unit providing a control signal which regulates the setting of the throttling valve. This setting controls the flow rate of cream through the cream conduit and, thus, establishes the fat test of the cream based on the known fat test of the whole milk. A portion of the cream is then recombined with the skim component in an amount controlled by the digital control unit so as to provide a standardized milk product of the desired fat content (e.g. 3.5% milk). Various additional additives (e.g. condensed skim milk) can also be blended with the standardized milk product.