| 摘要 |
Described is a process for the production of milk and cream with a predetermined fat content, in which raw milk is separated by a centrifuge into a high-fat fraction (cream) and a low-fat fraction (skimmed milk), in which the fat content in the hight-fat fraction is determined and the fat content in the low-fat fraction is kept at a negligibly low level, the volume flow of the low-fat fraction is determined, and a specific part of the high-fat fraction is then added to the low-fat fraction for obtaining milk of the desired fat content (standardized milk), and the remaining part of the high-fat fraction (cream) is drained off through a control valve (8), which is characterized in that the part of the high-fat fraction added to the low-fat fraction is regulated by means of a control valve (12) which in conjunction with the control valve (8) for discharge of the remaining part of the high-fat fraction is controlled on the basis of the volume flow (10) of the low-fat fraction, on the basis of the volume flow (11) of the part of the high-fat fraction added to the low-fat fraction, and on the basis of the density measurement (7) of the high-fat fraction, in such a way that the density of the high-fat fraction - and thus the fat content - is maintained at a set volume. Also is described a device for carrying out the process according to the invention. |
