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Comparison of Cupola Furnace and Blast Furnace Slags with Respect to Possibilities of Their Utilization

Pribulová A., Futáš P., Petrík J., Pokusová M., Brzeziński M., Jakubski J.

Archives of Metallurgy and Materials

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2018

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Vol. 63, iss. 4

1865--1873

EN

Blast furnace and cupola furnace are furnace aggregates used for pig iron and cast iron production. Both furnace aggregates work on very similar principles: they use coke as the fuel, charge goes from the top to down, the gases flow against it, etc. Their construction is very similar (cupola furnace is usually much smaller) and the structures of pig iron and cast iron are very similar too. Small differences between cast iron and pig iron are only in carbon and silicon content. The slags from blast furnace and cupola furnace are very similar in chemical composition, but blast furnace slag has a very widespread use in civil engineering, primarily in road construction, concrete and cement production, and in other industries, but the cupola furnace slag utilization is minimal. The contribution analyzes identical and different properties of both kinds of slags, and attempts to explain the differences in their uses. They are compared by the contribution of the blast furnace slag cooled in water and on air, and cupola furnace slag cooled on air and granulated in water. Their chemical composition, basicity, hydraulicity, melting temperature and surface were compared to explain the differences in their utilization.

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Comparison of possibilities the blast furnace and cupola slag utilization by concrete production

Baricova D., Pribulova A., Demeter P.

Archives of Foundry Engineering

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2010

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Vol. 10, iss. 2 spec.

15--18

EN

In process of pig iron and cast iron production secondary raw materials and industrial wastes are formed The most abundant secondary product originating in these processes are furnace slag. Blast furnace slag and cupola furnace slag originates from melting of gangue parts of metal bearing materials, slag forming additions and coke ash. In general, slag are compounds of oxides of metallic and non-metallic elements, which form chemical compounds and solutions with each other and also contain small volume of metals, sulfides of metals and gases. Chemical, mineralogical and physical properties of slag determinate their utilisation in different fields of industry. The paper presents results from the research of the blast furnace and cupola furnace slag utilization in the concrete production. Pilot experiments of the concrete production were performed, by that the blast furnace and cupola furnace slag with a fractions of 0-4mm; 4–8mm; 8–16mm were used as a natural substitute. A cupola furnace slag and combination of the blast furnace and cupola furnace slag were used in the experiments. The analysis results show that such concretes are suitable for less demanding applications.

PL

W referacie przedstawiono wyniki badań w zakresie wykorzystania żużla żeliwiakowego oraz mieszaniny żużla żeliwiakowego i żużla wielkopiecowego do produkcji betonu. Stosowano trzy frakcje żużli: 0-4 mm, 4-8 mm oraz 8-16 mm jako zamienniki naturalnego kruszywa. Przeprowadzono analizę chemiczną, mineralogiczną oraz ziarnową tych żużli. Stwierdzono, że betony wyprodukowane z udziałem tych żużli, co prawda nie spełniają wymagań stawianych betonom do budowy dróg, ale mogą one być wykorzystywane w mniej odpowiedzialnych konstrukcjach budowlanych.

3

Potential cupola slag utilization in the production of concrete

Demeter P., Baricová D., Pribulová A.

Prace Instytutu Metalurgii Żelaza

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2009

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T. 61, nr 5

13-14

EN

The paper presents results from the research of the blast furnace and cupola slag utilization in the concrete production. Pilot experiments of the concrete production were performed, by that the blast furnace and cupola furnace slag with a fractions of 0–4 mm; 4–8 mm; 8–16 mm were used as a natural substitute. A cupola slag and combination of the blast furnace and cupola slag were used in the experiments. The analysis results show that such concretes are suitable for less demanding applications.