SMALL-SIZED COMBINED FEED PREPARING UNIT Russian patent published in 2004 - IPC

FIELD: agriculture, in particular, feed production. SUBSTANCE: unit has single cylindrical case with charging hoppers. Case incorporates grinding chamber, bulk additive introducing chamber and mixing chamber, said chambers being arranged one above another in case. Mixing chamber is equipped with mixer and discharge device having branch pipe and rotary valve. Grinder with sieving shell and rotor with strikers are mounted in grinding chamber. Conical shield is mounted in lower part of bulk additive introducing chamber and branch pipes with dosing devices for feeding of bulk additives are mounted in its lower part. Conical shield apex is facing grinding chamber and is spaced from chamber case wall by annular gap equal to gap between grinder shell and chamber. Ground grain and bulk additives are delivered onto conical shield and are further fed in the form of annular layer onto mixer blades. Simultaneously liquid feed additives are supplied through branch pipes and funnel into hollow mixer shaft and are further directed through shaft openings and injected into annular layer of bulk additives and mixed by means of blades until homogeneous combined feed is produced, with following discharging thereof through branch pipe. EFFECT: increased efficiency in preparing of combined feed in single machine and improved grinding quality. 2 cl, 2 dwg