I am trying to find out the internal relations between the physico-chemical properties of iron ores (fines or concentrates) and the sinter quality. The aim of this work is to predict the sinter quality (mechanical and metallurgical performances) based on the physico-chemical properties of iron ores. The question is how to build the mutual relationship between them? If possible, could you provide me some literature that conducting similar research. Thank you!
As you know the blain number is an important factor in iron concentration for sintering.
blain number should be more than 1900 cm2/g that is related to fineness of concentrate this means d80 less than 38 microns. the grade of sulfur is another important factor should be less than 0.07% and the grade of phosphorous should be less than 0.04%. you can work on the effect of these parameters on the quality of sinter.
Dear Mohsen,
Thank you for your answer. The Blaine number (or the specific surface area, SSA) you mentioned is an important factor for iron ore concentrates. However, more than 50 wt% of sinter mixtures may be the iron ore fines (+1mm) and this is very different from pelletising which utilizes the fine iron ore concentrates. Thank you for your suggestion all the same.
You may use the central composite design methodology to build a mathematical relationship between the sinter quality and physico-chemical properties of iron ore. This will also in turn allow you to optimize the sinter quality.
Dear Dr. Danish,
Thanks for your kind and constructive suggestions. Actually, some attempts have been made to build the mathematical relationship between the sinter quality and physico-chemical properties of iron ores by adopting the BP neural network and the genetic algorithm. The mathematical relationship setup is usually based on a large data base of iron ore properties (e.g. chemical composition, size distribution and mineralogy)-sintering performance. However, the performance of the mathematical relationship was poor to predict the sintering performance of sinter mixtures consisting of new iron ores. Therefore, how to develop an mathematical relationship for quantitative prediction of sintering process is quite necessary.
ya it is possible.. surly iron ore properties can effect the quality of sinter. it can be established with sintering using a pot sinter machine. ( PILOT SCALE MODEL) and sintering different combinations of iron ores or properties of iron ore and blends in FIXED SINTERING CONDITIONS, like mix moisture, suction draft etc.
Thank you for your answer, Himansu. I do agree with your opinions. We may need to build a big database on the basis of properties of iron ores, pot sintering tests of single iron ores (and blends) and industrial tests under fixed sintering conditions. It will be a very big project to predict the sinter quality by building the tripartite relationship of the properties of iron ores and blends, pot sintering tests and subsequent industrial tests. Thanks again, your answer makes our ideas more determined.
Quality of Iron ore Sinter depends mainly on the process variables involved. so you have to generate a data base according to your process. pot sintering is the best option for carrying out a lot of experiments.
Thank you for your answering, Dr. Sharma. It is important to build an effective prediction model that is not only applicable to the evaluation of sintering performance of iron ores in a laboratory but also to the industrial-scale sintering process.And we will continue this work.
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