Cooling efficiency and cooling intensity of cooling staves in blast furnace hearth Ke-Xin Jiao, Jian-Liang Zhang, Zheng-Jian Liu and Hai-Bin Jiang Metall. Res. Technol., 116 4 (2019) 414 Published online: 28 June 2019 DOI: 10.1051/metal/2019003