| 摘要 |
<p>A method or apparatus for dry slag granulation of hot liquid slag using a casting apparatus comprising an endless conveyor having a plurality of casting moulds, which endless conveyor is arranged to move said casting moulds in a first section from a slag pouring zone through a cooling zone to a discharge zone and in a second section back to the slag pouring zone, comprising the continuous steps of pouring an amount of hot liquid slag into a casting mould in a position N in the slag pouring zone, moving the hot liquid slag containing casting mould in a position within the cooling zone, adding solid metallic particles to the hot liquid slag containing casting mould by dropping an amount of said particles into the mould from a dispensing device arranged above said mould and comprising at least one hopper for storing said solid metallic particles, discharging the cooled solidified slag from the mould in the discharge zone, wherein the amount of liquid slag in the casting mould is controlled by arranging the slag pouring zone in the first section of the endless conveyor to convey the moulds with a first slope angleαwhich limits the effective maximum filling volume of the mould in the slag pouring zone to a value Vα, any excess slag cascading back to an upstream casting mould in position N-1, N-2, etc. wherein the cooling zone is arranged with a second slope angleβ<αsuch that the effective maximum filling volume of the mould in the cooling zone has a value Vβ> Vαand wherein the amount of metallic particles added by the dispensing device is controlled by actuating of at least one actuated sliding gate arranged at the hopper's outlet.</p> |
