Improvement of blast furnace burden quality
The objective of this investigation was to find ways of improving the quality of the blast furnace burden. In order to obtain a low coke rate as well as a good furnace productivity, the blast furnace burden must have a good reducibility and sufficient mechanical strength during reduction. The properties of sinter and pellets produced on an industrial scale and in a pot grate installation were investigated under simulated blast furnace conditions, in order to find the best combination of pellet and sinter chemistry. An optimisation of the sinter ore mixture was also under investigation. The operating lines applied in the test were completed. In addition to CO and CO(2), hydrogen and water were incorporated in the reducing gas. The mineralogy of sinter and pellets was determined in both reduced and non-reduced samples, in order to explain the differences observed. Moreover, the influence of gas- and temperature-time programs simulating the peripheral and central part of the blast furnace was determined.
Bibliographic Reference: EUR 12637 EN (1990) 70 pp., FS, ECU 7.50
ISBN: ISBN 92-826-1284-8
Record Number: 199010953 / Last updated on: 1994-12-01
Original language: en
Available languages: en