SU1471034A1 - Plant for processing charge containing nonferrous metals - Google Patents

Abstract

The invention relates to metallurgical equipment. The purpose of the invention is to reduce energy consumption. The unit for processing the mixture containing non-ferrous metals includes a shaft 1 with heating-blowing devices 2 and lechad 3, a smelting furnace 4 and an overflow 5 connecting the shaft and the melting furnace, the latter in the lower part equipped with heating-blowing devices 8 and has a height equal to the height of the mine. At the same time, the width of the overflow 5 is 0.1-0.25 / width of the shaft 1, and the overflow 5 can be equipped with a number of heating-blowing devices 11, directed at an angle of 45-75 ° to the bottom 3 of the shaft 1. 2 Il.

Description

Phi.

, s

1147

The invention relates to metallurgical equipment and is intended for processing a mixture containing non-ferrous metals.

The purpose of the invention is to reduce energy consumption.

On fig.G shows the unit, a longitudinal section; figure 2 - section aa in figure 1.

The unit contains a shaft with relative-blowing devices 2 and base 3, a smelting furnace 4, an overflow 5 connecting the shaft 1 and a smelting furnace 4 and having a roof 6 and walls 7. The melting furnace is equipped with heating and blowing devices 8 in the lower part and has bore holes for matte and slag extraction 9

and 10.

The height in the smelting furnace is equal to the height of the mine H, and the width of the 1 overflow is (0.1-0.5) of the width of the mine L. On the arch of the overflow there is a row of heating and blowing devices 11, on.

directed at an angle of 45-75 ° to the bottom of the 3 mines 1. The mine has loading windows 12 and a flue 13.

The device works as follows.

  A mixture, lumpy ore containing 1.5% nickel and up to 0.1% cobalt, as well as limestone, is fed into the sheikh J through the loading windows

35

In the heating-blowing devices. 2 of the charge 1 serves a blast containing air, natural gas, element-. sulfur dioxide with a consumption rate of the oxide –lite less than 1 at a pressure of 40–20–20 kPa; the blowing may be cold, heated and enriched with oxygen. In the heating-blowing device 8 of the melting furnace 4 serves a blast containing air, natural gas, 45 elemental sulfur with an oxidizer consumption rate less than 1 with a pressure of blow .150-200 KPa. Blowing

The melting furnace 4 may be cold, heated, and oxygen-rich. The melting furnace 4 also serves fine ore and dust trapped at the outlet of the shaft 1. The melt of the charge, formed on the bottom 3, flows downstream 5 into the melting furnace in thin streams against the flow of high-temperature gases rising from the bubbling bath of the melting furnace. The matte and slag formed in the melting furnace 4 are discharged through the bore holes 9 and 10. The outgoing gases are discharged from the unit through the gas ducts 13.

B heating-blowing devices 11 installed on the roof of the overflow supply a blast containing air, natural gas, elemental sulfur with an oxidizer consumption rate less than 1 at a pressure of 20-50 kPa.

The blast may be cold with heat: S4 and enriched with oxygen.

Gas-blowing devices 11, along with the fuel supply, serve to blow off the furnace from the smelting furnace 4.

The present invention for processing a mixture containing colored metals reduces energy consumption by 20-30%.

five

0 45

Claims (1)

Invention Formula A unit for processing a mixture containing non-ferrous metals, including a shaft with heating and blowing devices and a bream, a smelting furnace and an overflow connecting the mine with the melting furnace, which is different in that it is equipped with heating and blowing devices to reduce energy costs. located in the overflow and directed at an angle of 45-75 ° to the bottom of the mine, while the height of the smelting furnace is equal to the height of the mine, and the width of the overflow is 0.1-0.25 of the width of the mine. 2