Study of efficiency of peeling machine with variable deck
2020
Dmitriev, A., Kazan State Agrarian Univ., Republic of Tatarstan (Russian Federation) | Ziganshin, B., Kazan State Agrarian Univ., Republic of Tatarstan (Russian Federation) | Khaliullin, D., Kazan State Agrarian Univ., Republic of Tatarstan (Russian Federation) | Aleshkin, A., Vyatka State Univ., Kirov (Russian Federation)
The most important process that affects the quality of the product obtained during the processing of buckwheat into cereals is peeling – the separation of films (outer shells) from the grain, which is carried out by peeling machines that differ in different ways of affecting the grain and the design of working elements. The Kazan State Agrarian University is working on developing devices with a reversible deck for peeling buckwheat grains. Their practical significance lies in the fact that the use of such devices eliminates the need for preliminary separation of grain into fractions according to geometric dimensions, and also increases the efficiency of grain peeling due to the influence of a complex of balanced forces on it. We consider a new design of a device for peeling buckwheat grain with a variable deck, which differs from existing devices in its compactness, low metal consumption, and low energy costs. To determine the performance indicators of the proposed peeling device, a laboratory prototype was created that allows, by changing the rotation frequency of the blade rotor and deck, to determine the peeling coefficient (a quantitative indicator) and the core integrity coefficient (a qualitative indicator). According to the results of the conducted experiments, the best indicators of peeling efficiency are observed, when peeling buckwheat grain with the moisture content 14 and 15 % after hydrothermal treatment at the rotor speed varied from 2100 to 2250 minE–1 and deck speed – from 950 to 1150 minE–1.
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