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RESEARCH ON INCREASING THE REACTION SURFACE OF SELF-REDUCING BRIQUETTES
Autori: Ana Virgina Socalici
Data aparitiei: Februarie / 2016
Revista: Environmental Engineering and Management JournalVol. 15Nr. 2
ISSN: 1843 - 3707
Pret: 25.00 RON    
N.A.

Waste recycling in steel industry by turning grain-size and powdery waste into pellets is a must now more than ever for
economical motivation, in order to save raw materials and also for ecological reasons, as it leads to a cut down in the quantity of
dumped waste. Industrial practice offers processors various technologies of waste recycling (agglomeration, briquetting,
pelleting, mechanical mixture). The optimal variant should be chosen according to waste type, its content of useful elements, the
existing processing facilities and also according to the final use of the resulting product. The paper introduces two variants of
making briquettes from iron and carbon containing waste, to be further used in feeding the blast furnace in order to obtain cast
iron or as charge of the electric arc furnace, in order to obtain steel. The need of optimizing the shape and size of the briquettes
results from the direct implications they have upon the increase of the installation productivity by increasing the reaction rate
when gaseous reducers are used – in the case of blast furnaces – and by cutting down the time of dissolution into the slag – in the
case of arc furnaces. The use of briquettes in feeding the elaboration aggregates has, besides technological effects, positive
economical and ecological impacts.



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