PLANT FOR HEAT TREATMENT OF ALUMINUM HYDROXIDE

FIELD: equipment of furnace process stages; non-ferrous metallurgy; chemical industry; drying, dehydration and calcination of aluminum hydroxide in production of various grades of alumina. SUBSTANCE: proposed plant includes drum-type furnace, cooler, one or several afterfurnace heat exchangers in fo...

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Bibliographische Detailangaben
Hauptverfasser:	LAZAREV V.G, SOF'IN S.E, BELIKOV E.A, FININ D.V, ALEKSANDROV S.V, MIL'RUD S.M, MAKAROV S.N
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY
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Beschreibung
Zusammenfassung:	FIELD: equipment of furnace process stages; non-ferrous metallurgy; chemical industry; drying, dehydration and calcination of aluminum hydroxide in production of various grades of alumina. SUBSTANCE: proposed plant includes drum-type furnace, cooler, one or several afterfurnace heat exchangers in form of dust collecting units and vertical hat exchanger having pinch in section, feeder and fuel-burning unit made in form of furnace connected with vertical heat exchanger by means of gas duct at distance of 1.5-5.0 of its diameter below pinch. Plant may be provided with one after-furnace heat exchanger with additional vertical heat exchanger and successive vertical heat exchangers. EFFECT: increased productivity; reduced consumption of fuel. 3 cl, 3 dwg