Abstract
The present research paper discussed the utilization of plant waste materials such as blast furnace flue dust and sludge as macro pellets and use of these macro pellets in the production of sinter. Wastes addition as pellets to the sinter modifies the productivity of the laboratory grade sinter machine as well as the better mechanical strength of sinter. At the same it also decreases the coke rate for sinter production. The maximum productivity achieved is 5t/m2/day at basicity 2.2(super fluxed sinter). Microstructure of the sinter of basicity 2.2 revels that it consists of re-oxidized hematite (Fe2O3) and few magnetite (Fe3O4) phases with some slag phase of calcium silicate(CaSiO3). X-ray diffraction also confirms the presence of hematite and magnetite as the main constituents of the sinter. Although using these waste made pellets in the sintering process leads to decrease the coke consumption, simultaneously it is used as secondary raw material and at the same time it is eco-friendly also due to recirculation of hazardous wastes.
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