Abstract：The spray drum cooler is one of the key equipment in the rotary hearth furnace process. In this paper the heat transfer characteristics of the external spray cooling system is focused. A coupling model of heat transfer process is established by using CFD numerical simulation technology. Effects of nozzle distribution parameters including nozzle number, nozzle distance and nozzle offset on the spray cooling were studied. Too many nozzles with too small distance or too few nozzles with too large distance are not conducive to the cooling performance. An appropriate number and distance have an important impact on the cooling performance of the equipment. Compared to rectangular array nozzles, the parallelogram array has better cooling performance. Finally, the correctness of the research results was verified by specific engineering applications.
2020, Vol. 55 
