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Method for strengthening self-heating efficiency of silver copper melting pool smelting furnace by building numerical model

A molten pool smelting furnace and thermal efficiency technology, applied in the field of metallurgy, can solve the problems of low self-heating smelting efficiency and difficulty in realizing self-heating smelting.

Active Publication Date: 2012-12-19
BAIYIN NONFERROUS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in actual operation, dynamic adjustments are rarely made to key parameters such as raw material content, smelting slag composition, converter slag content, copper-sulfur temperature, furnace gas outlet temperature, pulverized coal composition, and air excess coefficient, but only to adjust the pulverized coal composition To adapt to the heat balance problem caused by the change of raw materials, resulting in low efficiency of autothermal smelting, it is difficult to achieve complete autothermal smelting

Method used

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  • Method for strengthening self-heating efficiency of silver copper melting pool smelting furnace by building numerical model

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Effect test

Embodiment 1

[0023] Copper smelting method using double-chamber silver oxygen-enriched molten pool with a bed area of ​​100m 2 , the copper grade of copper-sulfur ore is 39.08%; the air volume ratio is 1.9956m 3 / t, the oxygen content in the blast should be 27.07%, so that the excess air coefficient is 1.15, and calculated by the above data model, the coal consumption should be 220kg / t Cu.

Embodiment 2

[0025] Copper smelting method using double-chamber silver oxygen-enriched molten pool with a bed area of ​​100m 2 , the copper-sulfur grade is 43.88%, the optimal air volume ratio should be 2.0377, the oxygen content in the blast should be 32.55%, and the air excess coefficient should be 1.2. Calculated through the above data model, the coal consumption should be 190kg / t Cu.

Embodiment 3

[0027] Copper smelting method using double-chamber silver oxygen-enriched molten pool with a bed area of ​​100m 2 , the copper-sulfur grade is 45.99%, the optimal air volume ratio should be 2.1243, the oxygen content in the blast should be 36.78%, and the air excess coefficient should be 1.29. Calculated through the above data model, the coal consumption is 165kg / t Cu.

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Abstract

The invention discloses a method for strengthening self-heating efficiency of a silver copper melting pool copper smelting method and belongs to the technical field of metallurgy. The method uses superiorities of a double-chamber silver oxygen enrichment melting pool copper smelting furnace which is good in self-heating efficiency, wide in mineral treatment elasticity and the like, builds a numerical relationship among a raw material content, smelting slag compositions, a converter slag content, copper sulphur temperature, furnace gas outlet temperature, pulverized coal compositions and a coefficient of excess air, achieves heat balance of the melting pool in a smelting process, and accordingly strengthens a self-heating process of the silver copper melting pool copper smelting method so as to improve the self-heating efficiency of the melting pool copper smelting method. Compared with a traditional silver melting technique, using quantity of pulverized coal can be effectively reducedby more than 30%.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and relates to a method for enhancing the self-heating efficiency of a silver molten pool copper smelting method, and in particular to a method for dynamically adjusting various parameters by establishing a numerical model among the original parameters in the molten pool smelting process. The heat balance in the pool smelting process, thereby improving the self-heating efficiency of the molten pool copper smelting method. Background technique [0002] The silver copper smelting method is a copper smelting method in which high-pressure air or oxygen-enriched air is blown into the copper matte layer through the side air hole, and the copper-containing furnace material added to the surface of the molten pool is smelted into copper matte, which belongs to the molten pool smelting. It has the characteristics of accelerating the mass transfer and heat transfer process between gas, liquid and solid, ...

Claims

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Application Information

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IPC IPC(8): C22B15/00
Inventor 王栋冯志兵王强
Owner BAIYIN NONFERROUS GROUP