ES355766A1 - A rotary oven system for the production of plasters. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

A rotary kiln system for the production of gypsum, which establishes it continuously and simultaneously with different setting speeds, is characterized by a long rotating tubular body formed by two coaxial cylinders, one external and one internal, of suitable smaller diameter, joined together between yes and mounted with a slight downward inclination towards its rear end, from which cylinders, the inner one has coaxially adapted at its front end, a long combustión chamber whose tail has a conicity of greater angle and in the opposite direction than the inclination of the said cylinders and the external one has its front end, ending in a fixed box that surrounds the combustión chamber, it has an upper mouth through which the furnace is fed and the combustión gases leave, also giving the circumstances: that in front of the front mouth of the combustión chamber, a box is arranged mobile function of cover that is carrier of the nozzle or burner burner and has in its lower part an evacuation opening; that the outer cylinder of the furnace body is provided at its rear end with a lid; and that the internal cylinder of the body of the oven has its rear end at a certain distance from said lid, all appropriately so that the circulating material in cooking treatment that enters the oven through the space between both coaxial cylinders, follow through they go to the rear end and continue their circuit in the opposite direction inside the internal cylinder until they find the outlets, always in the opposite direction to the circulation of hot air and combustión gases. (Machine-translation by Google Translate, not legally binding)