Optimizing the Separation Process of Difficult-to-Separate Wheat and Barley Grain Mixtures Using Vibrofriction Technology

Abstract The study explores the feasibility of using a block-modular vibrofriction separator with non-perforated surfaces to efficiently separate challenging mixtures of wheat and barley grains. The research identifies key parameters influencing the separation process, including vibration amplitude, frequency, direction, and the inclination angles of the separating surfaces. Optimal settings-vibration amplitude of 0.9 mm, frequency of 95 Hz, vibration direction angle of 30°, and longitudinal inclination angle of 11°—were determined to achieve high separation efficiency. The process enables the division of grain mixtures into fractions with varying wheat and barley content, suitable for different applications: seeds, bread flour, and polycomposite mixtures for bakery products. The proposed separation approach significantly enhances productivity and minimizes loss, offering practical recommendations for the food and grain processing industries.