... materials are fed from the relatively higher terminal, heat carrier comes in from the lower terminal, and sometimes the ... move forward, it receives the heat from the heat carrier directly or indirectly. As a result, the wet ... the forward movement of materials. Generally, the heat carrier can be hot air and chimney flue. After the ... 570011-132.7-1513.1¢1.0X103.8-53-57005.5-7.52.2-107.5¢0.8X103.8-53- ...