Study on Manufacturing Pig Iron and Portland Cement in Shaft Furnace (1)

摘要

If we can get good portland cement as the byproduct of pig iron in blast furnace operation, it may be a favourable process in iron metalIurgy. Present slag cements of markets are heating blast furnace slag once more in rotary kiln, as cement industry, but in point of fuel consumptions, and heat economy it is not recommendable in future plants. We tested to produce cement with one process, added CaO and gypsum to a molton slag, and we get a potlrand cement of good quality, that is high compressive strength of 3 days to 28 days.