| 摘要 |
A process for recovering and using fines of flux, such as limestone, used in a metallurgical process, such as oxygen steelmaking. The process involves collecting fines from a receiving zone (2), e.g., with blower and baghouse equipment. The fines so collected are then conveyed, as by a densephase conveyor (5), to a first processing zone (6) containing a first screening device (8) for screening flux material which is to be fed to the process. Material not passing through the first screening device (8) is fed to the metallurgical-process vessel, but fines passed by the first screening device (8) are collected and formed into briquettes. The briquettes are conveyed to a second processing zone which is located above the conveyor (5) which leads from the receiving zone (2) to the first processing zone (6) mentioned above. The second processing zone contains a second screening device (28) and a device for storing and releasing to the conveyor (5) the briquettes or portions thereof which have not passed through the second screening device (28). In particular, the second screening device (28) serves to remove from the briquettes their flashings, which pass via the conveyor (5) and the first screening device (8) to the briquetter (22) and are thus recycled and recovered. |
