Loading patent…
AssigneeOutokumpu Oyj
InventorsHelge Krogerus, P?auml;ivi Oikarinen, Timo Lintumaa, Esko Lamula
Estimating the term…
The invention relates to a method for sintering ferroalloy materials in a continuously operated band sintering process, in which method the pellets to be sintered are arranged on the sintering underlay as an essentially even pellet bed, which pellet bed is conveyed on the sintering underlay through the various steps of the sintering process, and in connection with the sintering process, gas is conducted through the pellet bed. According to the invention, at least the major part of the carbon-bearing material needed for heating the pellet bed up to the sintering temperature is fed onto the surface of ready-made pellets prior to bringing the pellets to the sintering step.
A method for sintering ferroalloy materials in a continuously operated band sintering process, in which method the pellets to be sintered are arranged on the sintering underlay as an essentially even pellet bed, which pellet bed is conveyed on the sintering underlay through the various steps of the sintering process, and in connection with the sintering process, gas is conducted through the pellet bed, characterised in that at least the major part of the carbon-bearing material needed for heating the pellet bed up to the sintering temperature is fed onto the surface of ready-made pellets prior to bringing the pellets to the sintering step.
A method according to any of the preceding claims, characterised in that at least 70% by weight of the carbon-bearing material needed in the sintering process is fed onto the surface of ready-made pellets prior to bringing the pellets to the sintering step.
A method according to any of the preceding claims, characterised in that the combustion rate of the carbon-bearing material is adjusted by means of the particle size of the carbon-bearing material.
A method according to any of the preceding claims, characterised in that the combustion rate of the carbon-bearing material is adjusted by feeding part of the carbon-bearing material to among the pellets.
A method according to any of the preceding claims, characterised in that the employed carbon-bearing material is coke.
Dependencies are inferred from the claim text.