CONTINUOUS PRODUCTION UNIT OF MOLDED FERRO COKE
PURPOSE:To improve reduction efficiency extremely, and to obtain molded ferro coke from a mixture of coal and iron ore continuously, by circulating a by- product gas as a reducing agent through a furnace repeatedly. CONSTITUTION:The molding device 2 of a mixed raw material of coal and iron ore and t...
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Zusammenfassung: | PURPOSE:To improve reduction efficiency extremely, and to obtain molded ferro coke from a mixture of coal and iron ore continuously, by circulating a by- product gas as a reducing agent through a furnace repeatedly. CONSTITUTION:The molding device 2 of a mixed raw material of coal and iron ore and the storage tank 3 of the molded raw material are set below the blending tank 1 of the raw material of coal and iron ore, having an outlet and inlet of a by-product gas. The by-product gas channel 6 which is opened to the top of the shaft furnace 4 having a communicating hole to the storage tank 3 of the molded raw material at the upper part and an outlet of red-hot coke at the bottom, partially communicated through the by-product gas heater 5 to the lower part of the shaft furnace 4, and partially communicated to the blending tank 1 of the raw material is set. The by-product gas is heated to a temperature required for carbonization and reduction of briguette, it as a high-temperature gas is refed from the lower part of the shaft furnace 4 to the furnace, so that ferro coke having improved reduction efficiency can be produced continuously and energy is reduced. |
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