METHOD FOR SHAPING STEELMAKING DUST UTILIZING WASTE SYNTHETIC RESIN POWDER

摘要

PROBLEM TO BE SOLVED: To provide a steelmaking dust shaping method utilizing waste synthetic resin powder by which high-strength granularly shaped bodies can be stably shaped by using the waste synthetic resin powder as a binder without requiring large amounts of heat energy.;SOLUTION: The steelmaking dust is added to the waste synthetic resin powder such as urethane resin foam powder, and the resultant mixture is kneaded under pressure to trap the steelmaking dust on the dendritic part of the waste synthetic resin powder. The resultant kneaded material is shaped using a briquetting machine or an extruding machine in a low-temperature region between ordinary temperature and 120°C where the synthetic resin powder is free from thermal decomposition. By this method, the high-strength granularly shaped bodies can be obtained while obviating the necessity of large amounts of heat energy for heating.;COPYRIGHT: (C)2004,JPO