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In order to further understand the heat transfer characteristics of pulse combustion drying process, a Helmholtz type pulsing burner was used to carry out heattransfer experiments. Through a convective heat-transfer experiment between pulsing air and brass ball by the method of lumped heat capacity, the convective heat-transfer coefficient in different frequencies pulse air was determined, and the impact of pulse frequency on the convective heat-transfer coefficient between material and airflow was investigated, the criterion correlation between Nu and pulse frequency was also established. By using the established correlation, the drying process of the refractory clay particles in the pulse combustion was forecasted. Compared with the experimental value, the results showed that the predicted values and the experimental results matched well.