METHOD TO ROAST COFFEE BEANS

The invention concerns a method to roast coffee beans in a roasting system, said system comprising: -a roasting apparatus (1), and -a smoke treating unit (2) configured to treat the smoke produced by the roasting apparatus, said smoke treating unit comprising at least an electrostatic precipitator (...

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Bibliographische Detailangaben
Hauptverfasser:	DUBIEF, FLAVIEN FLORENT, LEMMENS, RIEN DENISE M, DEGREEF, THOMAS RUDI S, BAEKELANDT, MAXIME, MOREND, JOEL, CELIS, MICHIEL ALEXANDER
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS COFFEE FOODS OR FOODSTUFFS HUMAN NECESSITIES MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLESOR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS MANUFACTURE, PREPARATION, OR INFUSION THEREOF PEELING VEGETABLES OR FRUIT IN BULK PERFORMING OPERATIONS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TEA THEIR SUBSTITUTES THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention concerns a method to roast coffee beans in a roasting system, said system comprising: -a roasting apparatus (1), and -a smoke treating unit (2) configured to treat the smoke produced by the roasting apparatus, said smoke treating unit comprising at least an electrostatic precipitator (222), said electrostatic precipitator comprising at least one cell, said cell comprising ionization wires, collecting electrodes and repelling electrodes and said ionization wires being supplied with an electrical power in order to apply a high voltage V to the ionization wires, wherein, during each roasting operation implemented in the roasting apparatus, the method comprises the steps of: -monitoring the voltage V at the ionization wires and/or the electrodes along the time of the roasting operation, -if the monitored voltage becomes inferior to a pre-determined voltage threshold V0 during a period of time of the roasting operation, and -if said period of time, where the monitored voltage V is inferior to said lower voltage threshold V0 is superior to a pre-determined time threshold Δt, then displaying a cleaning alarm.