This thesis describes the results of some three years' work in investigating the mechanical crushing of prepared sugar cane between rolls.
The mechanics of juice extraction and reabsorption factor, the pressure distribution on the roll surface, the feeding of cane to the rolls, the roll torque and vector roll load, the energy absorbed in crushing the cane, and the effects of change in roll diameter are discussed. Various methods of measuring the fineness of preparation are compared.
Extensive experimental results using a two-roll experimental mill are given and experimental investigations of the permeability of prepared cane, compression tests on prepared cane, the coefficient of friction between prepared cane or bagasse and various surfaces and the viscosity of cane juice are described. Descriptions of the experimental plant and methods of test are also given.