转杯粒化器上高温熔渣换热数值模拟

Rotary cup atomizers is the most important part in the system of centrifugal granulation integrated with heat recovery from molten slag, but the safety of rotary cup will be affected by heat transfer and temperature distribution with molten slag. Due to the temperature of molten slag over 1500℃, the existing experimental temperature measurement method have been restricted. Therefore, this article based on numerical simulation method, researched the flow and heat transfer characteristics as well as the formation of slag crust. The result showed that the thickness of the slag crust and liquid film at the edge of rotary cup decrease as the rotate speed increase. The heat flux and the temperature on the surface of rotary cup increase as the thickness of slag crust decrease. By adding refractory material on the surface of rotary cup, the temperature of the stainless steel in rotary cup have been reduced, thereby