Spraying apparatus and methods and components relating to spraying apparatus

摘要

A spraying apparatus that is particularly suited to spraying of suspensions, for example liquid suspended fertilizers. The apparatus includes a tank with an inlet configured to create fluid circulation within the tank, thereby reducing settling of solids out of suspension. A mixing unit improves the mixing of particulates with fluids as they are added to the tank. Spray outlets are arranged in a flow loop and only a proportion of fluid passing through the flow loop is sprayed with the remaining fluid returning to the tank for recirculation. Pressure-actuated closures may be used to prevent spraying until pressure has built up sufficiently.