Characterization of coal briquettes using tar as a binding material for use in a coke oven.
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2019
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Resumo
In order to increase competitiveness in the steel industry through reduction of the
cost of coal mixtures and increase in the quality productivity of coke in the oven, this
research was developed with the aim of increasing the bulk density through briquetting
of low power coking coal using tar as a binding material. Initially an industrial
scale double roller press was used to manufacture briquettes in the ellipsoid format.
The physical properties of the briquettes were analyzed in relation to variation of the
amount of tar and the curing time of briquettes. Through the process of coal briquetting
using low amounts of tar, it is possible to obtain a fuel of greater density, greater
use of soft coals, uniform granulometry and easy handling. The increase in the apparent
density of coal through briquetting may reach 42.5%. The success achieved in
these tests, through these briquettes, with good chemical and physical characteristics
represents ease of production as well as economic gain and low investment when compared
to other processes of charge densification in coke ovens.
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Low power coking coal, Charge densification, Physical properties
Citação
ASSIS, C. F. C. de. Characterization of coal briquettes using tar as a binding material for use in a coke oven. REM - International Engineering Journal, Ouro Preto, v. 72, p. 113-118, 2019. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2448-167X2019000100113&lng=en&nrm=iso&tlng=en>. Acesso em: 15 fev. 2019.