Three continuous furnace technology for continuous production of anode copper with copper concentrate

A copper concentrate and anode copper technology, applied in furnaces, electric furnaces, rotary drum furnaces, etc., can solve the problems of low direct yield, high sulfur and impurities in blister copper, high production costs, etc., to avoid gas escape and reduce Metallurgical equipment and plant investment, the effect of avoiding sensible heat loss

Inactive Publication Date: 2016-01-13
CHIFENG JINFENG METALLURGICAL TECH DEV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the disadvantages of inability to digest cold material, high comprehensive energy consumption, high copper content in blowing slag, low direct yield, high production cost, and high sulfur content in blister copper.
The Mitsubishi blowing process is to directly flow the hot matte (grade less than 68%) into the blowing furnace through the chute, and at the same time use the air spray gun to spray flux and oxygen-enriched air into the melt, and generate blowing slag

Method used

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  • Three continuous furnace technology for continuous production of anode copper with copper concentrate

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Example Embodiment

[0038] Example 1

[0039] Such as figure 1 As shown, a triple furnace process for continuously producing anode copper from copper concentrate includes the following steps:

[0040] (1) According to the proportion of ingredients and accurately measured, the mixed copper concentrate containing 18.5% copper and 6% water content and quartz stone flux and coke powder with a particle size of 2 The high temperature flue gas. The smelting slag and the copper matte are separated in the furnace, and the white copper matte containing 72% of copper sinks in the lower layer of the melt, and is discharged through the siphon channel, and flows into the copper making furnace through the chute; containing 2.0% copper, Fe / SiO 2 =2.0 smelting slag. The smelting slag continuously overflows and discharges, enters the slow cooling slag ladle through the chute, and goes to the slag concentrator for flotation. The flotation tailings contain copper 2 The high-temperature flue gas enters the waste heat boil...

Example Embodiment

[0043] Example 2

[0044] Such as figure 1 As shown, a triple furnace process for continuously producing anode copper from copper concentrate includes the following steps:

[0045] (1) According to the proportion of ingredients and accurately measured, the mixed copper concentrate containing 19.5% copper and 8% water content and quartz stone flux and coke powder with a particle size of 2 The high temperature flue gas. The smelting slag and the white copper matte are separated in the furnace, and the white copper matte containing 75% copper sinks in the lower layer of the melt, is discharged through the siphon, and flows into the copper making furnace through the chute; the copper content is 2.20%, Fe / SiO 2 =2.2 The smelting slag continuously overflows and discharges, enters the slow cooling slag ladle through the chute, and goes to the slag concentrator for flotation. The flotation tailings contain copper 2 The high-temperature flue gas enters the waste heat boiler through the vert...

Example Embodiment

[0048] Example 3

[0049] Such as figure 1 As shown, a triple furnace process for continuously producing anode copper from copper concentrate includes the following steps:

[0050] (1) According to the proportion of ingredients and accurately measured, the mixed copper concentrate with 20.5% copper and 10% water content and quartz stone flux and coke powder with a particle size of 2 The high temperature flue gas. The smelting slag and the white copper matte are separated in the furnace, and the white copper matte containing 78% copper sinks in the lower layer of the melt, is discharged through the siphon channel, and flows into the copper making furnace through the chute; 2 = 2.5 smelting slag smelting slag continuously overflows and discharges, enters the slow cooling slag ladle through the chute, and goes to the slag concentrator for flotation. The flotation tailings contain copper 2 The high-temperature flue gas enters the waste heat boiler through the vertical flue, and the 340...

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Abstract

The invention provides a three continuous furnace technology for continuous production of anode copper with copper concentrate. The technology is particularly characterized in that a smelting furnace, a copper making furnace and an anode furnace are in tandem arrangement successively, and kilns are connected by chutes. The technology comprises the steps that the copper concentrate and flux enter the smelting furnace and react with oxygen-enriched air to generate white matte, smelting slag and high-temperature smoke; the smelting slag overflows continuously; a slow cooling slag ladle is put through the chutes for floatation and depletion; the white matte continuously flows into the copper making furnace via siphon through the chute and reacts with the flux and the oxygen-enriched air to generate raw copper, copper converting slag and high-temperature smoke; the raw copper continuously or intermittently flows into the anode furnace via siphon through the chute; the anode furnace alternately operates and produces the anode copper via oxygenation and reduction; and the converting slag is regularly discharged, chilled, broken and returned to the smelting furnace. The technology achieves continuous operation of smelting production of the raw copper with the copper concentrate.

Description

technical field [0001] The invention relates to a process for producing anode copper, in particular to a three-continuous furnace process for continuously producing anode copper from copper concentrate. Background technique [0002] Copper smelting technology is gradually developing in the direction of high efficiency, cleanliness and continuity. Copper smelting enterprises at home and abroad are actively seeking or developing copper smelting processes with large production capacity, low investment and operating costs, continuous operation, and environmental protection. my country attaches great importance to the selection and development of smelting process and blowing process in large and medium-sized copper smelting new or renovation projects. While introducing and digesting advanced technologies, it focuses on developing smelting technology and continuous blowing technology with independent intellectual property rights. It has become an inevitable trend to gradually narro...

Claims

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Application Information

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IPC IPC(8): C22B15/00C22B15/14
Inventor 王国军韩志
Owner CHIFENG JINFENG METALLURGICAL TECH DEV
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