DEHYDRATION METHOD FOR CHLORINE-MAGNESIUM RAW MATERIALS AND FACILITY FOR ITS IMPLEMENTATION Russian patent published in 2008 - IPC C01F5/34 F27B15/00 

FIELD: metallurgy.

SUBSTANCE: dehydration of chlorine-magnesium raw materials is implemented sequentially in chambers of fluid-bed furnace by fuel gases, received at burning mixture of natural gas and air in furnace extension. For raw materials cooling into angled cap of gas-distributing grating it is fed air. Dust and gases of combustion are picked up in cyclones. Heated air outgoing from angled cap of gas-distributing grating is collected in reservoir and fed through facility for feeding of air into boiling bed of the first chamber of furnace counterflow to dust movement and gases into cyclone. Facility includes multichamber kiln of boiling bed implemented in the form of furnace body with nipple for raw materials feeding and withdrawal of finished product, with particles with down windows, forming chambers, gas-distributing grating in the form of bottom with cutouts on which there are installed angled cap, furnace extension and cyclone. Furthermore, it is additionally outfitted by facility for air feeding, located in the first chamber of furnace over down windows of particle parallel to bottom grating, fixedly connected from one side with furnace body, and from other side with reservoir for collection of heated gases and implemented in the form of curved tube with cutouts in the form of grooves or round.

EFFECT: increasing of quality of carnallite dust and decreasing of dust losses; increasing of dehydration losses.

8 cl, 2 dwg, 1 ex