The Re-use of Highly Rich Iron Oxide Wastes from Integrated DR Steel Companies in Egypt | ||
| Benha Journal of Engineering Science and Technology | ||
| Volume 1, Issue 1, July 2018, Pages 1-8 PDF (504.71 K) | ||
| Document Type: Research Article | ||
| DOI: 10.21608/bjest.2018.444693 | ||
| Authors | ||
| Elsayed M. A. Rassoul; Ahmed M. Galal | ||
| Faculty of Engineering – Mansoura University | ||
| Abstract | ||
| There are five integrated iron and steel companies in Egypt. One of them, Hadisolb in El-Tebbin, which adopts the sintering blast-furnace rought and is using local El-Bahareya iron ore. This ore after 40 years of exploitation does not meet any more the required specifications for neither the sintering nor the pig iron production in the blast furnaces. Its iron content became less than 50 % while its Cl and MnO contents became far beyond their upper limits. At the meantime, the other four integrated companies, which adopt the DR rought and use imported iron oxide pellets with iron content more than 67% to produce sponge iron, are producing wastes as by-products with iron content about 67% and with almost zero percent Cl and MnO. A representative sample (about 20 tons) of these wastes was transported by trucks from EZDK Company in Alexandria to the sintering plant of Hadisolb in El-Tebbin. Several experiments in the sintering pilot plant were performed to investigate the sinterability of these waste. The sinter produced was found to meet both the requirements of sintering and blast furnace plants. As a matter of fact, during the production of sponge iron, two important waste by-products, oxide fines and sludge with an iron content more than 67% are formed. It is expected that the annual production of such waste by-products from the four DR integrated steel companies will be about one million tons. This means that as long as the four companies are producing sponge iron according to their designed capacities and so far as natural gas is available, about one million tons of highly rich iron oxide wastes almost free from Cl and MnO will be annually available. | ||
| Keywords | ||
| Waste Material; Oxide Fines; Sludge; Blast Furnace Rought; DR Rought | ||
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