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Copper smelting method

A technology for smelting copper and copper bars, which is applied in the field of smelting copper bars, can solve problems such as difficulty in smelting, and achieve the effects of stable quality, easy production, and reasonable technology

Inactive Publication Date: 2008-11-12
张建秋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited resources, people try to extract copper from waste materials. Because waste materials are corroded by air and other external environments for a long time, some of them have formed oxides and contain a large amount of other impurities, which brings certain problems to smelting. difficulty

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Specific steps:

[0015] 1. Feeding and hot melting

[0016] Preheat the smelting furnace to 1170±20°C, put in baled scrap copper, and keep the temperature.

[0017] 2. Oxidation

[0018] The blower blows cold air into the smelting furnace, and at this time, the reaction temperature is 1160-1200°C.

[0019] 3. Remove slag

[0020] Scrape off the surface slag.

[0021] 4. Restore

[0022] Throw dry pine trees into the melt for burning, and keep the temperature at 1200-1230°C.

[0023] 5. Ladle

[0024] Open the copper outlet of the smelting furnace and pour the copper water into the ladle. The temperature of the ladle is 1170-1180°C

[0025] 6. Crystallization into strips

[0026] The copper water in the ladle is quantitatively poured onto the surface of the crystallization wheel, and the copper strip is formed from the crystallization wheel.

[0027] Control the surface temperature of the crystallization wheel to be 1130-1135°C.

[0028] 7. Traction

[0029] ...

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Abstract

The invention provides a method for smelting copper, relating to a method for smelting copper strips from scrap copper. The method comprises the following steps of: oxidizing the scrap copper into copper oxide; reducing the copper oxide into copper after removing dregs; and forming a circular copper strip through ladling, crystallizing into a strip, drawing, rolling, surface processing and winding a turnstile. The method has the advantages of reasonable process, easy production and convenient control, thereby being a feasible production route with stable quality.

Description

technical field [0001] The invention relates to a method for smelting copper strips from waste copper. Background technique [0002] With the sharp increase in the price of non-ferrous metals, obtaining low-priced copper has become a common pursuit of copper-making and copper-based enterprises. However, due to the limited resources, people try to extract copper from waste materials. Because waste materials are corroded by air and other external environments for a long time, some of them have formed oxides and contain a large amount of other impurities, which brings certain problems to smelting. difficulty. Contents of the invention [0003] The purpose of the present invention is to invent a copper smelting method capable of smelting copper products with stable quality from scrap copper. [0004] The invention includes the following steps: feeding, hot melting, oxidation, slag removal, reduction, ladle, crystallization into strips, traction, rolling, surface treatment, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/14
CPCY02P10/20
Inventor 张建秋
Owner 张建秋