Heat is given through coke breeze/ anthracite. the output sinter varies wrt porosity, phases and temperature.
Heat and Material balance can be done to know the heat required
@ Mahesh. but it will only tell us the input vs output... how to know how much needed?
Fuel requirement for sinter depends on many factors some are required basicity of sinter, Iron ore characteristics and types of metallurgical waste. Generally for high basicity if content of lime stone or dolomite is high you require more fuel to be added. Fuel content is largely dependent on Iron ore characteristics like Granulometric, Al2O3 content etc. Depending on all factors you have to do the experiments for getting desired chemistry and properties of sinter which are highly dependent on fuel content. Literature is available you can find fuel varies between 4-6%.
Dear Himansu,
Mahesh provides a key point to your question. The fuel content of sinter blends is affected by many factors. Besides those Mahesh has mentioned, I think the effect of sintering scale (pot sintering test, semi-industrial sintering test or industrial test) also needs to be taken into consideration. It seems to be difficult to accurately calculated the proper fuel content for a given sinter blend. Here I provide a possible way which may give another train of thought.
No matter what scale the sintering test is conducted, we can firstly calculate the heat balance of the sintering process (see attached file, sorry for I can only find some literatures in Chinese) under some fixed sintering conditions. Therefore, for a given sinter blend, I think we can estimate the required fuel content.
Best regards!
Congcong Yang
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