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HOW TO REDUCE METALLURGICAL BRIQETTES DEZINTEGRATION
Abstract
The manufacturing and processing of metals is connecting with large number of different types of wastes. One kind of these wastes are dusts and sludges which arise as a result of the melting processes or in the machining of castings. Flue dusts from melting processes are captured most often on filters, scrubbers or in Venturi scrubbers. Dust particles resulting from the machining of castings (grinding and blast cleaning) remain in the grinding rooms or they are sucked and collected on filters. Whereas these dusts contain metallic iron or iron in the form of oxides the briquetting is the easiest way of being returned them to the melting process. One of the most important features of the briquettes is their disintegration that should be minimal because the briquettes must be transported to the melting aggregate and they may not break during charging into the furnace. There are compared some typical but also untypical binders used in briquetting of metal powder in this paper and the effect of binder on briquettes disintegration was observed. Dezintegration of briquettes was evaluated with help of impact drop test and briquettes durability test.
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