METHOD OF PRODUCTION OF FEED FROM WASTE ANIMAL AND VEGETABLE ORIGIN WITH HIGH HUMIDITY INGREDIENTS

Abstract

A method of feed production by processing animal and vegetable waste, including dosing, grinding and mixing of components, followed by their extrusion, dehydration and cooling, carried out as a continuous technological process of the extruder equipped with two vacuum chambers. The waste mixture is extruded for 10-15 seconds and at the outlet of the die is treated with low pressure in order to obtain the finished product with a moisture content of 12-14%. The temperature of the extrudate at the outlet of the die is maintained at 120-130 °C and after processing in the first vacuum chamber, the product enters the second chamber, located in series with the first and limited on both sides by the sluice gates. The reduced pressure in the first chamber is 0.03-0.04 MPa and is regulated by a vacuum regulator, as well as the amount of air suction into the chamber by means of an air tap. The extrudate in the second chamber is processed at a temperature of 90-100 °C and a reduced pressure of 0.07-0.08 MPa. The use of the proposed method makes it possible to increase the efficiency of dehydration of the extrudate and process raw materials with high humidity and with a lower content of waste of plant origin.