AN IMPROVED SYSTEM FOR EXTERNAL DESULPHURIZATION OF HOT METAL FOR 60 TONS CAPACITY LADLE

摘要

The invention relates to an improved system for external desulphurization of hot metal for 60 tons capacity ladle, comprising a correspondingly modified storage silo for receiving DS-compound conveyed from a cargo-carrying truck; an injection dispenser vessel (ID vessel) modified in registration of the modification incorporated in the storage silo, and being disposed below the silo such that the DS-compound without the need of any carrying medium can be transported from the silo to the ID vessel by gravity; a lance applicable for the lower capacity ladle including a lance carriage means provided for vertical movement into the hot metal ladle; and a ladle with hot metal including the carriage means transportable and disposable below the lance for desulphurization of the hot metal, the flow rates of the DS compound and the conveying gas including vertical movement of the lance in hot metal ladle being regulated based on an on-line measurement of the operational parameters and comparing the parameters with a preset value.