| 摘要 |
<p>FIELD: chemistry.SUBSTANCE: gypsum dehydration apparatus comprises a housing which is divided into series-arranged sections for preliminary roasting and dehydration, provided with separate heat supply into each section, wherein heat pipes are cascaded with heating areas on said pipes, which alternate on the height of the cascade in the form of rings and discs, and over each area there is a blade which is curved inwards over the annular area and outwards over the disc. Each section is fitted with temperature sensors and an unloading conveyor has a cooling jacket.EFFECT: ?-gypsum is formed by controlling preheating zones, increasing the surface of the heating areas, the cascade movement of the gypsum and as a result of lowering its temperature on the unloading conveyor.3 dwg</p> |
