Investigation of the continuous fuming process by physical model

The industrial slap. fuming process exists in two variants-periodic and con tinuous process. In this report investigations of the continuous fuming pro cess are reported. These are made by physical modeling, with the model liqu id of 72 weight% glycerine water solution, according to the criteria: sigma(3).rho/mu(4).g = idem The desorption degree of oxygen from the saturated model solutions was comp ared by blowing them with the air, for both the quadratic and elongated con figurations of the furnace, The criteria for equality of the impulse for th e unit of mass are as follows: (rho(1,g).w(1,g).V-1,V-g)/Q(1) = (rho(2,g).w(2,g).V-2,V-g)/Q(2) The width of the elongated model corresponds to 1 m width of the industrial furnace. The desorption degree of oxygen for the elongated model was found to be 15-40% higher than for the quadratic model, It was shown that the elongated model tends to the model of plug flow. The conclusion is that an elongated furnace will be more convenient for the continuous process. (C) 1999 Canadian Institute of Mining and Metallurgy. Published by Elsevier Science Ltd. All rights reserved.