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Gabriel Borowski*, Jan. J. Hycnar**, Tomasz Józefiak***
*Politechnika Lubelska; **Ecocoal Consulting Center Katowice; ***Eko-Invest, Bukowno

Abstract
The paper presents the results of research on briquetting process carried out at production scale for the management of troublesome solid waste. These trials enabled to develop a method for continuous processing of large quantities of waste and implement a production line of iron containing briquettes. The material was collected from the landfill site located on the utilization company of waste taken from Bearing Factory – Kraśnik S.A. The following binders were added to the homogenized mixture of waste: molasses, starch and two-component adhesive – dry hydrated lime with molasses. Briquetting process was carried out in an industrial production line equipped with a crusher, screen, conveyor belt, gravity storage tank and roller-briquetting machine. Briquettes with the approximate dimensions of 50×20 mm were obtained. Their mechanical properties were determined in gravitational dump tests. The best briquettes were made of a mixture of waste with starch as binder in the mass fraction of 3%, wherein the moisture content was approx. 8%. The mechanical strength of briquettes with starch meets the established requirements at the moment of production; therefore, the time-consuming seasoning before shipment to the customer was unnecessary. We concluded that the briquettes meet the criteria for metallurgical processes, and can be added – together with scrap – as feedstock for melting in a steelmaking furnace.

Słowa kluczowe
brykietowanie, linia produkcyjna, łożyskowe odpady poszlifierskie, hutnicze wykorzystanie odpadów

Industrial Briquetting Trials for the Waste Management of Bearing Grinding

Key words 
briquetting, production line, barring grinding waste, metallurgical use of waste

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