Objective
To improve the oxidation conditions of injected pulverised coal, different processes, like high oxygen enrichment of the blast and the use of different designs of the injection lances, are applied. In spite of all those measures an ignition directly at the tip of the lance could not be achieved. The oxidation process only starts when the injected pulverised coal enters the raceway. This is too late because, in the raceway, coke is a strong competitor for free oxygen and the pulverised coal cannot be oxidised directly. The oxidation of the pulverised coal injected in the blast furnace tuyeres and raceway has to be accelerated and intensified to achieve its complete oxidation in this area. Higher injection rates of pulverised coal and stable blast furnace operating conditions as well as lower coke rates can be expected.
Topic(s)
Call for proposal
Data not availableFunding Scheme
CSC - Cost-sharing contractsCoordinator
47166 DUISBURG
Germany