Drying characteristics of sludge in a rotary drum for fast-drying application

High temperature metallurgical slag (temperature, >1450?C) and high moisture sludge (moisture content, >80 wt.%) are common wastes with huge outputs. Many problems, such as cost, low level of harmlessness, efficiency, encountered in current treatment methods. If these can be recycled, they valuable secondary resources. Therefore, using the drum apparatuses to treat two kinds is proposed. The process uses waste heat dry content a kind alternative circulation technology which steel balls used ball milling media intermediate carriers. Besides, this break up or real time, thereby ensuring mass transfer rate. This study presents an experimental investigation dynamic drying wet mixed hot rotary drum. relationship operation parameters (including mass, diameter, speed drum) effect obtained. There three final results: completely dried powder, few agglomerations, sludge-to-wall adhesion. operating set well, could efficiently eventually powder form.