| 摘要 |
<p>This invention concerns a method during the oxidation and sintering of pellets (1 ) arranged in a compartment (2) in which the sintering takes place with the aid of a medium with a high temperature, which medium heats the pellets (1 ). The method comprises the introduction of a first medium (3) into the compartment (2) through an inlet (4) connected to the compartment (2) and the heating of the first medium (3) in the inlet (4) through the use of a combustion arrangement (5), or a part of a combustion arrangement, arranged in the inlet (4) and comprising fuel. The use of the combustion arrangement (5) comprises the ignition of the fuel, combustion of the fuel whereby combustion heat is developed, and the transfer of the combustion heat to the first medium (3) that is present at the combustion arrangement (5). The method is characterised by the introduction of a second medium (6) into the inlet (4) through an intake (7) in the direct vicinity of the combustion arrangement (5), the combustion arrangement part, where the ignition of the fuel and the combustion of the fuel take place for the transfer of combustion heat also to the second medium (6) that is present at the combustion arrangement (5), and the mixing of the heated first medium (3) and the heated second medium (6) before or during their introduction into the compartment (2). The invention concerns also an arrangement and a pelletising plant.</p> |
