Research on the Desulfurization Gypsum of the Rotary Kiln with the Finned Tube

The calcination technology of the desulfurization gypsum decides the product quality directly. The production process and property of the desulfurization gypsum has been described and themerits and faults of the conventional calcination technologies have been analyzed. The calcination technology of the desulfurization gypsum of the rotary kiln with the finned tube was chose for the research. The structure and workflow of the calcinatory has been analyzed, and the results showed the advantages of this technologywere as follows: the interfusion of the impurity in the calcination process has been avoided, the cylindrical shellwould not be distored when the expand with heat and contractwith cold happened because the finned tube could extend allodiality in the discharge end of the cylindrical shel,l the heat exchange efficiencywas high because the flowage of the airflow changed from the laminar flow into the turbulent flow and the heat exchange area increased by using the finned tube. After al,l the property of the calcination technology of the desulfurization gypsum of the rotary kiln with the finned tube is good, and it can be applied in the industrial field and has awide development prospect