Abstract
An investigation was carried out into the use of saw-dust form oak wood as a supplementary fuel in the iron ore sintering process. The primary fuel was coke breeze and total heat output of all the tested raw blends was the same and was calculated as 3.8 wt. % coke breeze. The coke substitution and energy requirement provided by saw-dust from oak wood (SDOW) was in the range of 8 - 44 %. Experimental tests were made by using a laboratory sinter pot (LSP) with charge capacity of around 70 – 90 kg per run. The main objective of the work reported here was to determine the effects of substituting coke with saw-dust from oak wood in the iron ore sintering process with respect to combustion efficiency and sinter quality. The use of SDOW fuel up to 20 % as a partial substitution of coke resulted in a decrease in the sintering time but on the other hand with the increasing of SDOW the bed temperatures were reduced. A substitution of coke with SDOW more than 20 % may lead to decrease in permeability of mixture and consequently it may lead to achieve low temperature profile of bed. Explain in more detail and interpretation of results is described in the paper.
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