Biscuit manufacturing involves high temperatures for baking .Various type of ovens are available for baking bakery products . Heat recovery can be done for biscuit oven which has 5 - 6 zones basically in indirect Oven .As temperatures are very high ( 400-500degc) on feed end these stacks are then joined to a common duct which collects heat from these stacks with help of blower and then these flue gases is passed onto the last zone which requires low temperature . This temperature is as low as 180- 200 deg c can be attained by circulating flue gases collected in common duct from these stacks .This eliminates need of one burner all together at coloring zone or last zone .
Fuel is saved by implementing this kind of arrangement . 15 ltrs-20ltrs /hr can be saved
Fuel is saved by implementing this kind of arrangement . 15 ltrs-20ltrs /hr can be saved
