Abstract
The effects of agglomeration time and burnt lime addition on the optimization of iron ore cold agglomeration process
Highlights
The steel industry has undergone major technological developments over the years, many of them triggered by needs to adapt the process to the new conditions of product requirements and availability of raw materials
There are some settings from the cold agglomeration stage that can lead to results that make it capable to absorb more fines, such as increasing its specific surface and optimizing the use of other sintering additives [1,2,3,4,5]
The present study describes the usage of a lab scale device capable of reproducing a cold permeability test called JPU (Japanese Permeability Unit) to assess the influence of burnt lime and agglomeration time on the permeability of mixtures to be sintered
Summary
The steel industry has undergone major technological developments over the years, many of them triggered by needs to adapt the process to the new conditions of product requirements and availability of raw materials. Some aspects most commonly used to guarantee the bed permeability with a high presence of fines and without the use of equipment technology include adjusting the amount and type of binders as well as changing the cold agglomeration cycle Both factors seek to promote better growth and resistance to the quasiparticles. The adequate mixing time and drum speed are fundamental to promote the quasiparticle growth and rotation regime [11,12,13] In this context, the present study describes the usage of a lab scale device capable of reproducing a cold permeability test called JPU (Japanese Permeability Unit) to assess the influence of burnt lime and agglomeration time on the permeability of mixtures to be sintered.
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