| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: invention refers to non-ferrous metallurgy, particularly to electrolyte production of magnesium, specifically to preparation of chlorine magnesium raw material for magnesium electrolysing by means of its dehydration in furnace of boiling bed. The method of dehydration of chlorine magnesium salts in a multichamber furnace of boiling bed includes feeding of raw material, its successive dehydration in the chambers of the furnace, burning of natural gas and air in a fire box producing fuel gases, feeding of fuel gases to create aerated layer, supply of air into a cavity of gas distributing grid for cooling, and return of heated air; at that initially air is supplied for cooling into a pressure tight cavity of the gas distributing grid; then heated air is collected in a collector and directed to the fire box of the furnace for burning of natural gas. The ratio of heated air and natural gas is maintained equal to (1.05-2.5); heated air is supplied for burning of natural gas at temperature exceeding 150C, air is supplied into the cavity of the gas distributing grid at a rate of 20-30 m/sec. ^ EFFECT: increased efficiency of furnace. ^ 4 cl, 1 ex |
