Boiler vakuumny KV-4.6M, KVM-4.6, Zh4-FPA Vacuum boiler is used for cooking, sterilization and dehydration of non-edible protein raw materials and confiscations obtained in the process of processing cattle, poultry and meat at the enterprises of the meat industry during the production of dry animal fodder (meat, meat-and-bone, blood, bone meal, meal from hydrolyzedfeather, fodder protein concentrate: hornbill flour), for processing carcasses of fallen animals into fodder products at meat-and-bone meal plants, production of fodder and technical fats, as well as for obtaining rendered animal fats from fat. raw meat, bones and bone remains. The vacuum boiler is part of the technological lines for the production of dry animal fodder and animal fats and can work according to technological schemes. The vacuum boiler ensures the production of dry animal fodder: meat and bone, meat, blood, bone meal and hydrolyzed feather meal, feed animal fat and technical animal fat.