The article considers the theory of the issue of designing an ultrasonic screw plant for processing soybean grain. The authors proposed a device based on a screw mechanism that allows the transportation of bulk cargo in the form of a liquid suspension, ultrasonic treatment, liquid withdrawal and extraction. Ultrasonic processing technology allows accelerating mass transfer processes of inactivation of anti-nutritional sub-stances that reduce the digestibility of protein of leguminous crops. The proposed design of the plant allows intensive processing of grain in the working area and squeezing the suspension to the required parameters. The case has a perforated partition for the first spin, a conical narrowing of the case for the second spin. The time of exposure to the processed suspension is set by changing the angle of the housing and the rotation fre-quency of the screw. In order to intensify the process of ultrasonic grain processing, part of the installation body is equipped with a cable heater that allows increasing the temperature to the required parameters. The installation body is fixed on two racks: fixed and adjustable, with which the angle of inclination of the instal-l
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