CONTROLLING THE SUPPLY OF BODYFEED TO A FILTER

The invention features a control system for controlling the supply of bodyfeed to a filter for removing solids from a beer stream is described. By applying the bodyfeed at an appropriate rate and hence achieving appropriate effective bed voidage it is possible to maintain beer clarity while minimizi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	PECAR, MICHAEL, ANDREW, LEES, MICHAEL, JOHN, CAMPBELL, DUNCAN, ANDREW
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AGEING BEER BIOCHEMISTRY CHEMISTRY CLARIFICATION ENZYMOLOGY METALLURGY MICROBIOLOGY MUTATION OR GENETIC ENGINEERING PASTEURISATION PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRESERVATION PURIFICATION SEPARATION SPIRITS STERILISATION TRANSPORTING VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention features a control system for controlling the supply of bodyfeed to a filter for removing solids from a beer stream is described. By applying the bodyfeed at an appropriate rate and hence achieving appropriate effective bed voidage it is possible to maintain beer clarity while minimizing filter aid usage. The control system includes a means for determining turbidity of the liquid stream upstream of the filter, a means for determining the rate of pressure drop change across the filter, and a controller for altering the supply of bodyfeed to the filter in accordance with a calculated dose change.