| 摘要 |
The invention provides a method and an assembly for the batch-wise preparation of a liquid product constituted by a mixture of at least one primary liquid and at least one secondary liquid. The secondary liquid and liquids, respectfully, to be meteredly added to the flowing primary liquid are displaced, before the metered addition, from a main reservoir to a buffer reservoir. Each of the secondary liquids is conveyed by means of an associated conveyor operating according to the displacement principle. The conveyors are hydraulically operated, whereby the same liquid can be used both as hydraulic operating medium and as primary liquid. A mixing element is provided for mixing the primary liquid with the secondary liquid or liquids. The primary liquid is under pressure, since it can be blended with carbon dioxide. The secondary liquid or liquids are supplied to the mixing element under a pressure that is higher than the pressure inherent to the primary liquid in the mixing element.
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