METHOD FOR AUTOMATIC CONTROLLING OF COLD FISH SMOKING PROCESS Russian patent published in 2002 - IPC

FIELD: food-processing industry. SUBSTANCE: method involves stabilizing smoke temperature and flow rate; maintaining relative moisture content of smoke and correcting controlling process; providing additional drying of fish with drying agent and processing fish smoke with partial circulation thereof; measuring moisture content of drying agent at smoking chamber inlet and outlet ends, speed of drying agent at inlet end of smoking chamber, amount ratio of consumed saw dust and air at smoke generator inlet end, smoke concentration at smoking chamber inlet and outlet ends, vacuum extent in smoking chamber; determining current amount of evaporated moisture during additional drying procedure from current moisture content of drying agent at smoking chamber inlet and outlet ends and drying agent speed; stopping additional drying of fish and initiating smoking procedure, when current value of evaporated moisture reaches predetermined value; setting predetermined smoke concentration value at smoking chamber inlet end by regulating saw dust and air consumption ratio at smoke generator inlet end; correcting current moisture content of smoke at smoking chamber inlet end by changing smoke flow rate in recirculation line and stabilizing smoke concentration difference at each time interval of smoking process by regulating vacuum extent in smoking chamber through changing exhaust ventilation drive power. EFFECT: increased precision and enhanced reliability in operation, improved quality of ready product and reduced power consumption. 1 dwg