Experimental and Mathematical Modeling Application in Installation Design for Feeding Grain Micronization

Improvement of installations is one of the directions of increasing the efficiency of the process of feeding grain micronization. In the article the particular issues of transporting a thin grain layer on the vibrating surface, used as a transporting body in the micronization of feed grain are considered. The peculiarities and disadvantages of transportation, which reduce the efficiency of infrared irradiation, have been revealed. A solution was proposed and mathematical modeling of the surface and the conditions of grain transportation with practical confirmation of the obtained results was carried out. As a result of the research, it was found that the surface of the chute of the vibrating conveyor used in the micronization unit makes rotationally oscillating movements, which reduces the efficiency of micronization. The use of a concave conveying surface will eliminate these drawbacks. Using mathematical apparatus, the dependences between the rotation angle of the chute, the position of the particle on its surface and the direction of surface reaction are obtained. The dependence of the effective width of transporting a thin layer of grain on the concave surface on its parameters and operating modes of the vibrating conveyor was obtained. The mathematical model of the impact of surface parameters and operating modes of the vibrating conveyor on the effective width of grain layer transportation was obtained.