FIELD: agricultural engineering.
SUBSTANCE: method involves using two extruders. First carry out High-temperature extruding treatment of humidified grain raw material is first applied by electrically heating the first extruder casing. The so produced grain extrudate is cooled with air, crushed, dosed out, mixed with loose compound feed components and covered with fat layer. Then, the extrudate is subjected to formation by extruding in the second extruder with its casing being cooled by cold water. The extruded compound feed is cooled with air. Air used for cooling is preliminarily prepared by treating it in a section of heat pump installation two-section evaporator operating in condensation mode. Working and reserve evaporator section alternatively operate in condensation and regeneration modes. Prepared air is divided into two streams, one of which is used for cooling the extrudate, and the other one for cooling extruded compound feed.
EFFECT: high quality of end product.
1 dwg
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