| 摘要 |
A continuous vibro fluidized bed roaster for roasting cereals, pulses, spices, oil seeds and ready-to-eat snack foods using flue gas, said roaster comprises of a main frame (4) which houses all the parts of the machine, the vibrating deck (1) is mounted on a set of coil springs (6) which is mounted on the main frame through screw fasteners, a perforated sieve (3) and a hood (2) are mounted on the vibrating deck (1) with rubber gasket (17) for sealing the hot air from leakage, a vibratory motor (10) is mounted on the feed end of the vibratory deck for imparting vibrations to the feed material, a vibratory feeder (11) is mounted on the feed side of the vibratory deck (1) for feeding the raw material in to the roaster through a hopper (20). A LPG burner (8) is fastened to the combustion chamber (7) using fasteners, a solenoid valve (14) mounted on the main frame (4) for regulating the LPG supply to the burner and also to close the LPG supply incase of electrical power failure with a signal for flame failure from the photo sensor (15), a blower (9) generates the air needed for the reducing the flue temperature is mounted at the end of the on the vibratory feeder (11) on to the main frame (4), a return duct (19) connects the hood (2) and the suction end of the blower (9), a temperature indicator is (21) is used for measuring the inlet temperature of the hot air admitted in to the roaster, an electrical panel (16) is mounted at the end of the main frame for housing all the required electrical controls and variable speed drive (13) for varying the residence time of travel of the raw material, a rheostat (12) for varying the feed rate of the raw material fed in to the vibrating deck, the roaster is covered by a set of covers (18) on all its sides, the complete machine is mounted on a set of castor wheels (5) for easy movement of the roaster to the required place, the materials of construction of the roaster are preferably of stainless steel but this shall not restrict the use of other materials as well.
|
