Free movement of mineral fertilizers and their mixtures in air

Abstract

The object of research is the free movement of mineral fertilizers and their mixtures in the air after discharge from the centrifugal pneumomechanical apparatus, followed by the processes of distribution on the field surface.The aerodynamic properties of the grains of mineral fertilizers or mixtures are different. Therefore, they are broken down into fractions during free movement in the air after being thrown from the centrifugal apparatus. A new pneumomechanical type equipment scheme was developed, developed and field tests were carried out using the method of assembling structural elements and the rules of classical mechanics, dedicated to the analysis of technological processes of centrifugal devices in existing and patent information materials and quality spraying of fertilizer mixtures. The expression was derived and calculated taking into account the fact that the rate of additional air flow decreases with distance, and the relative velocity of the fertilizer grains relative to it.The centrifugal pneumomechanical device is designed to perform two functions simultaneously, the first is to throw mineral fertilizers, the second is to create an additional air flow and direct it behind the thrown fertilizer grains. The proposed centrifugal pneumomechanical type apparatus ensures even distribution of component fertilizer mixtures of different sizes, shapes and densities on the field surface.