SU602565A1 - Charge for smelting ferrosilicomanganese - Google Patents

Description

(54) CHARGE FOR MELTING ARGAR4TS FERROSILICOL

one

The invention relates to ferrous metallurgy and can be used in the production of ferroalloys.

The known charge for smelting manganese alloys, consisting of manganese ore, iron ore concentrate and carbonaceous reducing agent. The disadvantages of this composition are low manganese extraction and use; expensive iron ore concentrate.

Closest to the proposed composition, which includes manganese ore, pig manganese slag and carbonaceous reductant 2.

In addition to the above disadvantages, the Np bench is an alloy shop on a known charge g of water | yy to increased power consumption.

The purpose of the invention is to increase the recovery of manganese in the alloy, reduce its ce6ecToiiMocti and expand the manganese ore.

This is achieved by the fact that the composition of the proposed mixture additionally contains cobspt-containing material in the following ratio of components, wt.%:

Manganzev ore50--60

Carbon reducing agent 6--19 Jacobsite-containing material 24 31

Jacobsite-containing material has the following composition, wt.%:

Manganese oxide17-26

Silicon oxide 8-15

Calcium Oxide 8-12

Magnesium oxide 0.5-1.5

Alumine oxide 0.5-4.0

Barium oxide 0.5-1.0

Phosphorus oxide 0.04-0.06

Iron oxides Ometh.

The primary content of coxite content in the material of iron oxides allows IIHite1 to identify reduction processes, oxides of gravity. magnesium and bari provides the necessary basicity of slag in the smelting ofappocll.imi o apgantsa.

The reserves of cobsite-containing material (about 2 million tons), submitted by the USSR Civil Code and the proposed ratio (charge ratio of charge materials significantly expands the manganese base of the ferroalloy industry.

The mixture of the onifcaHHor ... composition was used in the smelting of the pyrolysis batch of ferrosilicon manganese in electrical |

The results of the experimental heats of three variants of the composition of shchi.hty are given in the table

The selected ratios of the charge components are optimal and provide an increase in manganese extraction of 3.5–5.0%.

The use of cobsit contained 1, its material allowed to exclude from the burden redistribution -

Component Name

Manganese ore

Carbon Reducer

Jacobsite material

Extraction of manganese,%

Claims (2)

Invention Formula . The mixture for smelting ferrosilicon manganese containing manganese ore and carbonaceous reducing agent, characterized in that, in order to increase the extraction of manganese, reduce the cost of the alloy and expand the manganese ore base, it also contains cobsite-containing material in the following ratio of components, wt. Carbonaceous reducing agent 16-19 Jacobsite-containing material 24-31 2. The mixture according to claim .1, characterized in that manganese slag, reduce the cost of ferrosilicon manganese by about 10 rubles per ton. The economic effect from the introduction of the charge of the composition described can be about 1 million rubles. in year. Consumption of charge materials for 1 bases. t ferrosilicomanganese options 60.0 55 50.0 24.0 20 19.0 16,0 25 74.1 75.0 Jacobsite-containing material contains components in the following ratio, wt.%: 17-26 Manganese oxide 8-15 Silica 8-12 Calcium Oxide 0.5-1.5 Magnesium oxide 0.5-4.0 Aluminum oxide 0.5-1.0 Barium oxide 0.04-0.06 Phosphorus oxide Osta.1noe. Iron oxides Sources of information taken into account in the examination: 1 USSR Author's Certificate No. 369146, K.L. C 21 C 5/52, 1969. 2. Proceedings of the Chemical-Metallurgical Institute ANKaz. SSR, t. 13, Alma-Ata, “Science, 1973, p. 140.