Abstract:
In order to investigate the influences of different control modes of KLD3-2Z two-section cylinder dryer on the moisture content in dried tobacco, the processing performance under the conditions of different technical parameters and the control modes of constant cylinder wall temperature, constant hot air temperature, and zone control of cylinder wall temperature were analyzed. The results showed that:1) The dehydration ability of two-section thin plate cylinder dryer mainly depended on cylinder wall temperature, and aided by hot air temperature. 2) Comparing with the adjustment of cylinder wall temperature, the adjustment of hot air temperature had relatively less influence on the stability of moisture content in dried tobacco, and promoted the overall sensory quality of cigarette slightly. 3) With the increase of set moisture content in dried tobacco, the cylinder wall temperature reduced in two sections, hot air temperature kept steady and the moisture content in dried tobacco presented a uniform variation trend in general. The cut tobacco dried under the control mode of high-to-low cylinder wall temperature (in the direction of tobacco flowing) might offer better smoking quality.