<Original Papers>Studies of the Mechanics of Green Pelletization. (I) : Magnetite-Water-Guar Gum System

The size distribution of agglomerates formed in the process of green pelletization was analysed by means of the size function, as the growing resistance of green pellets, introduced by defining, [numberical formula] where Si is the specific surface of the pellet of ith species and N_ the corresponding number of pellets. μ_ is assumed to be a fuction of the specific surface of the pellets and other factors as follows : [numberical formula] where a and b are the constants and c is a parameter. The size distribution of green pellets formed in a laboratory pelletizing drum was found to be in good agreement with the formula obtained by integrating equation (2) by putting c=2. From the results of experiments the following conclusions were drawn : (1) Guartec T-1 was found to be an effective reagent in producing green pellets of uniform quality, the amount of addition of the reagent being 0.1%. (2) The sintered pellets with 0.1% Guartec T-1 and 0.1% CaO were found to be sufficient for smelting