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Method for producing artificial rich iron ore from copper smelting waste slag by using new sintering technology

A copper smelting and crafting technology, applied in the field of artificial rich iron ore for ironmaking, can solve the problems of poor economic benefits, poor economic indicators, high processing costs, etc., and achieve low production cost, low cost, and good anti-knock effect

Inactive Publication Date: 2010-09-15
牛庆君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the processing costs of these technologies are generally too high, resulting in poor economic benefits. Especially in terms of energy saving and consumption reduction, various economic indicators are very poor, so these technologies are rarely used so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. Pour the copper smelting waste slag with a temperature of 1200 ° C into the hot slag bag, and let it stand for 15 minutes after shaking the bag for 10 minutes;

[0024] b. Remove the floating slag part of the uppermost layer of the hot slag bag, which accounts for 5% of the total volume of the spoil, retain the bottom slag part of the bottom layer of the hot slag bag, which accounts for 5% of the total volume of the spoil, and transfer the rest of the hot slag bag to another in hot slag bag;

[0025] c, in the above-mentioned hot slag bag containing most of the slag, adding iron powder with iron content of 62%, the consumption of the iron fine powder is 50% of the total weight of the slag in this hot slag bag, and then stir evenly, Make the iron powder evenly melt in the slag;

[0026] d. The waste slag added with iron fine powder is poured into the mold to cool, and then crushed, screened, and refined to be used as a finished qualified artificial iron-rich ore.

...

Embodiment 2

[0029] a. Pour the copper smelting waste slag with a temperature of 1100 ℃ into the hot slag bag, and let it stand for 10 minutes after shaking the bag for 5 minutes;

[0030] b. Remove the floating slag part of the uppermost layer of the hot slag bag, which accounts for 3% of the total volume of the spoil, retain the bottom slag part of the bottom layer of the hot slag bag, which accounts for 3% of the total volume of the spoil, and transfer the rest of the hot slag bag to another in hot slag bag;

[0031] c. Add iron oxide scale with iron content of 60% in the above-mentioned hot slag bag containing most of the slag. The iron sheet is evenly melted in the slag;

[0032] d. The waste slag added with iron oxide scale is then cooled by a cast iron machine, and then crushed, screened, and refined to be used as a finished qualified man-made iron-rich ore.

[0033] In this embodiment, iron oxide scale is used as the iron-containing raw material. In addition, the bottom slag part...

Embodiment 3

[0035] a. Pour the copper smelting waste slag with a temperature of 1300 ° C into the hot slag bag, and let it stand for 20 minutes after shaking the bag for 15 minutes;

[0036] b. Remove the floating slag part of the uppermost layer of the hot slag bag, which accounts for 8% of the total volume of the spoil, retain the bottom slag part of the bottom layer of the hot slag bag, which accounts for 8% of the total volume of the spoil, and transfer the rest of the hot slag bag to another in hot slag bag;

[0037] c, in the above-mentioned hot slag bag containing most of the slag, adding the iron-rich ore powder with an iron content of 65%, the consumption of the iron-rich ore powder is 100% of the total weight of the slag in the hot slag bag, stirring afterwards uniform, so that the iron-rich ore powder is evenly melted in the waste slag;

[0038] d. The waste slag added with the iron-rich ore powder is cooled by a cast iron machine, and then crushed, screened, and refined to be...

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PUM

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Abstract

The invention relates to a method for producing artificial rich iron ore for ironmaking from copper smelting waste slag, in particular to a method for producing the artificial rich iron ore from the copper smelting waste slag by using new sintering technology. The method is characterized by comprising the following steps: a, pouring copper smelting waste slag at 1100-1300 DEG C into a hot slag ladle, shaking the ladle for 5-15 minutes, and standing for 10-20 minutes; b, transferring the rest of the waste slag in the hot slag ladle into another hot slag ladle; c, adding a ferrous raw material into the hot slag ladle filled with most of the waste slag, wherein the ferrous raw material accounts for 30-100 wt% of the waste slag in the hot slag ladle; and d, pouring out the waste slag with the ferrous raw material, and cooling. By fully utilizing the sensible heat produced by the emission of the copper smelting waste slag, the method removes the impurities to purify the waste slag, recycles the ferrous metals and saves the heat energy, thereby obtaining the novel artificial rich iron ore product.

Description

technical field [0001] The invention relates to a method for producing artificial iron-rich ore for ironmaking by using copper smelting waste slag, in particular to a method for producing artificial iron-rich ore by using copper smelting waste slag through a new sintering process. Background technique [0002] Copper smelting waste slag is a kind of solid waste slag discharged from copper metal smelting production by non-ferrous metallurgical enterprises, and it is also a unique iron and steel resource. Copper smelting waste slag not only contains a large amount of iron metal, silicon dioxide, calcium oxide, magnesium oxide, but also a small amount of copper, nickel, cobalt, lead, zinc and other metals and non-metallic elements such as sulfur, etc. At present, a huge amount of copper smelting Except for a small amount of waste slag that is used as an additive in cement plants to replace iron ore, the rest have not been fully developed and utilized. In addition, the temperat...

Claims

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Application Information

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IPC IPC(8): C22B1/16
CPCY02P10/20
Inventor 牛庆君
Owner 牛庆君
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