本文在论述了脱湿送风的必要性及其效益的基础上,着重介绍了冷冻法脱湿的优越性,并对推广冷冻法脱湿送风、优化冲天炉熔炼新工艺的可行性进行了分析。认为:采用此工艺后,可在节约焦炭的同时,获得高温优质的铁水,取得节焦和降低铸件废品率的双重效益。文章还对除湿机的原理作了简介。 Based on the necessity of desiccant air supply and its benefits, this paper focuses on the advantages of dehumidification by freezing process, and discusses the feasibility of popularizing dehumidification air supply and optimizing the new process of cupola melting analysis. It is considered that the dual benefit of using high-temperature and high-quality hot metal, obtaining coke-on-spot and reducing the reject rate of castings can be obtained after the process is economized. The article also made an introduction to the principle of dehumidifier.