1 我国热风炉的技术现状 通过对我国高炉热风炉的调查研究发现,作为向高炉提供热风的热风炉本身技术落后,主要表现在以下几个方面。 (1)换热状况不良。炼铁生产中使用的热风炉,实质上是一种蓄热式热交换器。它采用的是燃烧与送风交替进行的周期性工作制度。要求在燃烧期燃烧产生的高温烟气所含热量能最大限度地传给蓄热室的格子砖,使 1 China’s technical status of hot blast furnace Through the investigation of blast furnace hot blast furnace in our country found that as the blast furnace to provide hot air blast furnace itself behind the technology, mainly in the following areas. (1) poor heat transfer. Hot blast stoves used in ironmaking are essentially regenerative heat exchangers. It uses a cyclical working system in which combustion and supply air alternate. It is required that the heat content of the high-temperature flue gas generated during the combustion period be maximized to the trellis of the regenerator,