SU1008600A1 - Furnace for continuous melting of sulfide materials in liquid bath - Google Patents

Abstract

FURNACE FOR CONTINUOUS MELTING SULPHID MATERIALS IN A LIQUID BATH, containing a shaft divided by a panel of 7 barrels fixed on the roof and not reaching the bottom, melting and reducing chambers, loading devices, tuyeres, cased, inclined, stepped, refined, refractory chambers; for the release of smelting products, so that, in order to reduce the loss of metals with other slags, it is equipped with a partition fixed on the roof of the recovery chamber and not reaching the bottom, the lower edge of the partition The recovery chamber is equipped with a partition, the upper edge of which is located at the threshold of the drain window of the slag siphon, (L and the lower edge of the partition is located at the level of the partition separating the smelting chamber from the matte siphon. 7

Description

l

ff The invention relates to non-ferrous metallurgy, in particular to devices for continuous smelting and depletion of slags. Famous furnace for continuous melt-j

sulphide materials and slag depletion in a liquid bath containing a mixture divided by a partition that does not reach the bottom, into a smelting and reduction chamber caissoned with tuyeres, siphons for slag and matte production, and a second partition that is mounted on the bottom in the lower part of the recovery chamber there is a flow-through window equal in height to the window of the matte siphon 1.

The disadvantage of this furnace is that the removal of depleted slag is carried out directly from the chambers in which melts are sparged: into, into the siphon, and rich matte can flow into the reduction chamber, which degrades the depletion of acre.

Closest to the proposed} technical essence and the achieved result is a furnace for continuous smelting of sulphide matrials in a liquid bath containing a right angle shaft divided by a partition fixed on the arch and not reaching the bottom, melting and reducing chambers, loading devices, tuyeres, Caisson ss, inclined, stepped hearth, siphons for the production of smelting products.

The design of this furnace allows you to extract from the slag metals or their compounds that have a high degree of steam elasticity at temperatures of the processes of smelting and slag processing I.

The disadvantage of this furnace is that it does not achieve flO sufficient slag depletion for copper, nickel and other valuable metals due to the absence of slag contact with depletion matte and conditions for settling the sulphide suspension. The purpose of the invention is to reduce the loss of metals with waste slag. This goal is achieved by the fact that a furnace for continuous smelting of sulphide materials in a liquid bath containing a shaft divided by a partition fixed on the arch and not reaching the hearth, to a smelting

attached to the arch of the recovery chamber and not reaching the bottom, the lower edge of the partition is located at a level equal to 0, the height of the drain slag threshold, in addition, the recovery chamber is equipped with a partition, the upper edge of which is located at the threshold of the drain window of the slag siphon and the lower edge the partition is located at the level of the partition separating the melting chamber from the matte siphon

The drawing shows the proposed furnace, a vertical section.

The furnace consists of a melting chamber 1, a reducing chamber 2 containing a settling zone 3 and a mixing zone and a lunch box 5. The melting chamber contains a charging device b, a flue 7, tuyeres 8, restrictive partitions 9 and 10. Matte from the furnace is removed through a siphon 11 and a window 12. The recovery chamber is divided into zones by a partition 13 and is separated from the depletion chamber by partition 1. The recovery chamber includes tuyeres 15, loading device 16, flue 17 and inclined hearth -18. Slag siphon 19 by its drain window 20 is separated from the depletion chamber by partition 21. The side walls of each chamber in the area of the tuyeres are caissoned at 22.

The choice of the proposed limits is explained by the fact that the location of the lower edge of the partition, the separating chamber of the restoration and depletion, the recovery chamber, loading devices, tuyeres caissoned with, inclined, stepped bottom, siphons for the production of smelting products, are provided with a partition, for 0 , Level 70 of the slag drain threshold will hinder the flow of the lumpy-n-ryodide reductant into the depletion chamber, and placing the partition at a level exceeding the drain threshold (i.e. above the slag melt surface) is not echivaet retention in camera space podsvodovom depletion reducing gas atmosphere. The furnace works as follows. The mixture is continuously fed into the melting chamber 1 of the furnace through the loading device 6 to the surface

Claims (2)

FURNACE FOR CONTINUOUS MELTING OF SULPHIDE MATERIALS IN A LIQUID BATH, containing a shaft separated by an inter-7Ln2r? £ th Ret й2ΖΖΣΖΣΖ22Ζ ^ 23 & ώζ. RZZ2Z £ 2Z? ZZZZZZZZ with a rod fixed on the arch not reaching the bottom, to the melting and recovery chambers, loading devices, tuyeres, coffered belt, inclined, stepped bottom, siphons for the release of melting products, if any I mean that, in order to reduce the loss of metals with waste slag, it is equipped with a partition fixed to the arch of the recovery chamber and not reaching the bottom, the lower edge of the partition is located at a level equal to 0.7-1.0 of the height of the drain slag threshold, recovery the camera is equipped with orodkoy, the upper edge of which is located on the window, slag drain siphon threshold level and the lower edge of the partition located at the partition level, separating the matte from the smelting chamber syfona. S U ,,,. 1008600 go '' j LI * I I I I I I I I I I I I 1 I (t ...... E s 5 's I 2 I 2> i o & 2ZZ2aZ5E22Z! ZZZS2222Zzfci