摘要：co.vection heat transfer co.fficient and air pressure drop in sinter layer are important factors for the design of sinter co.ling craft. Due to the lack of necessary data, the two parameters are studied by experimental method. The experimental results show that heat co.duction of sinter impacts the measurement of co.vection heat transfer co.fficient. co.vection heat transfer increases with the increase of air volumetric flow rate. Sinter layer without small particles(sample I) gives higher co.vection heat transfer co.fficient than that with small particles(sample II). Under the co.sidered co.ditions, volumetric co.vection heat transfer co.fficient is in the range of 400-1800 W/(m3·°C). Air pressure drop in sinter layer increases with the increase of normal superficial velocity, as well as with the rise of air temperature. Additionally, air pressure drop also depends on sinter particle size distribution. In co.sidered experimental co.ditions, pressure drop in sinter sample II is 2-3 times that in sinter sample I, which resulted from 17% small scale particles in sinter sample II.