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The improvement in the performance of sintering plants is indispensable for lowering the production costs of hot metal. Quality and speed of the sintering is connected with the characteristics of the high temperature zone which determines the hot permeability of the sintering layer. The use of water vapour added to the air drawn in from the upper layer on the high temperature front and on quantitative and qualitative parameters of the product are examined in this report. Experimental tests have shown that the use of water vapour results in an improvement in the productivity; an improvement in the efficiency of coke combustion; and a reduction in CO emission. A trial at ILVA's sintering plant 'B' at Taranto works has confirmed all of these observations, including the effect of the use of water vapour on the composition of the fumes; a reduction of the CO emission (15%) and an increased efficiency of coke combustion (CO/CO+CO(2) lowered by 17.7%). Given the low quantity of vapour used in the industrial trial the improvement in the performance of the plant was not found to be significant.

Additional information

Authors: SCARTON A, Centro Sviluppo Materiali, Taranto (IT);PINTI M, Centro Sviluppo Materiali, Taranto (IT)
Bibliographic Reference: EUR 14939 IT (1996) 46pp., FS, ECU 7.00
Availability: Available from the (2)
ISBN: ISBN 92-827-5246-1
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