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Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base
Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base
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机译：减少金属氧化物颗粒-通过将固体还原剂送入蒸馏瓶中以产生与电荷并流的气体并将其从碱中除去
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摘要
The pellets are heated together with a solid reducing agent (I), in a retort; and the gaseous reaction prods. (II) flow at least partly in co-current with the charge travelling down the retort. The retort is pref. gastight with a gas outlet towards its lower end, via which gas leaves the retort via an equilibrium or via a suction fan causing a negative gas pressure in the retort. A noncombustible gas may be fed into the top, charging end of the retort to form a gastight seal. A high thermal efficiency is achieved. Agent (I) is pref. hard coal and/or reactive coke; and the moisture in the charge pref. forms steam used to make water gas. The pref. retort is located in a vertical shaft furnace below a charging chamber fitted with shutter valves.
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