Method of cement production

(22) 03.03.2021

(43) 26.12.2022

(57) A method of cement production includes roasting clinker in a furnace at the temperature of 1450 °C, purifying the dust from furnace flue gases containing CO₂, SO_X, NO_X, at the temperature of 150-350 °C, by passing them through filters, drying the zeolitic tuff containing clinoptilolite by feeding it to drying unit, at the time with modification therewith CO₂, SO_X, NO_X, and emissions into the atmosphere through smoke pipe, grinding of burnt clinker, and dried and modified zeolite tuff together with gypsum in the mill; at that, flue gases are supplied into the drying unit through direct flow pipe of 3-8 mm with fraction zeolitic tuff, at which time, flue gases having the temperature of 150-350 °C are mixed with zeolite tuff to provide residual moisture content of 0.2-0.8%, and simultaneous modification therewith CO₂, SO_x, NO_x, absorbent together with zeolitic tuff, while passing through drying unit, maintaining the temperature of 50±5 °C, moving with speed of 1-3 m/s, wherefore the filling coefficient of drying unit with zeolitic tuff should be at least 30%, and slope inclination angle relative to the horizon is 1-30°, the speed of rotation varies within 1-3 RPM.

(71) Ssip Shota Rustavelis Erovnuli Samecniero Fondi, Skhvitaridze, Rajden (GE)