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Conference Proceedings

Coal and Mineral Sizing, Wollongong

Conference Proceedings

Coal and Mineral Sizing, Wollongong

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The Use of Cyclones for the Sizing of Steel Plant Slurries

In the iron and steelmaking processes, dusts are generated and treated by wet dedust- ing methods to form slurries which are high in iron content, but also contain certain impuri- ties. For many years these slurries have been processed and the wet cake, which is produced, has been dumped because of the high zinc and alkali chloride contents. Sintering is an appropriate process for recycling of these materials, provided the deleterious impurities can be kept under control. Zinc is a deleterious element in blast furnaces because it promotes the formation of accretions on the upper walls of the furnace._x000D_
This results in irregular furnace performance._x000D_
Alkali chlorides effect the emissions from the sinter plant waste gas due to the high resis- tivity of these components, resulting in decreased efficiency of the electrostatic precipitator. Experimental work indicated a concentra- tion of zinc in the -11 pmt particle size frac- tion. A cyclone plant was installed producing a "coarse" usable product and a "fine" waste Product.
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  • Published: 1984
  • PDF Size: 0.493 Mb.
  • Unique ID: P198402026

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