Process for the separation of fractions of low ash and high ash sizes substantially similar, animal meal dehydrated and defatted.

摘要

Process for separation of fractions of low ash and high ash sizes substantially similar, animal meal dehydrated and defatted.The use of a process for separation by the cyclone air to effectively separate a fraction of low ash, containing less than 11% by weight of non protein material.Of animal meal and defatted and dried. A yield of low material greater than 50% in weight is recovered as the feed dogs and cats can be used.The process involves generating in a first separator - cyclone (10) of a cyclone air double vortex having a vortex of the external air descedente (20) and a spiral inner air ascendentAnd (22), in which an upper chamber (11) is internally equipped with a rotary rejeitador particle (13).The feeding animal meal and dried defatted is fed into the spiral of rising air (22) which carries and transports the fraction of low ash by particle rejeitador ROtativo (13) to a second device of cyclone air cleaner (26), in which the material of low ash (23a) is recovered from the incoming air.The high ash particles denser and larger (41) are recovered from the first separator - cyclone.