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Copper molten pool smelting method based on biomass fuel oil oxygen-enriched submerged combustion

A technology for smelting biomass fuel oil and molten pool, which is applied in rotary drum furnaces, crucible furnaces, furnaces, etc., can solve the problems of high consumption of fossil fuels, high smelting costs, poor heat transfer effects, etc., and achieves reduced losses and flexible installation processes , fully responsive effect

Inactive Publication Date: 2017-07-04
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems and deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a copper melting pool smelting method based on biomass fuel oxygen-enriched submerged combustion, so as to solve the problem of poor heat transfer effect in the existing copper melting pool smelting process. Poor, excessive consumption of fossil fuels, high carbon emissions, high smelting costs, etc.

Method used

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  • Copper molten pool smelting method based on biomass fuel oil oxygen-enriched submerged combustion

Examples

Experimental program
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Effect test

Embodiment 1

[0038] The copper bath smelting method based on oxygen-enriched immersion combustion of biomass fuel oil has the following specific steps: the oil-gas mixture formed by jatropha oil biodiesel and oxygen-enriched (oxygen-enriched oxygen accounts for 55% by volume) is used as fuel and oxidizer, delivering fuel and oxidizer to a pipe controlled by a regulating valve (when the gun is inserted from the top, such as figure 1 As shown, the biomass fuel in the oil storage tank 1 is pressurized and regulated through the oil pump 2, the bio-fuel filter 3, and the pressure control valve 4, and the oxygen-enriched gas in the gas storage tank 5 passes through the fan 6, the air filter 7, and the pressure control valve 4. The control valve 8 is pressurized and adjusted, and the fuel and combustion-supporting material are pressurized to a pressure of 0.1MPa), and the pipeline is connected to the spray gun (the biomass fuel pipeline in the oil storage tank 1 is connected to the inner pipe in t...

Embodiment 2

[0041] The specific steps of the copper bath smelting method based on biomass fuel oxygen-enriched submerged combustion are as follows: the oil-gas mixture formed by waste oil biodiesel and oxygen-enriched (oxygen-enriched oxygen accounts for 50% by volume) is used as fuel and Combustion-supporting material, the fuel and combustion-supporting material are delivered to the pipeline controlled by the regulating valve, the fuel and the combustion-supporting material are pressurized to a pressure of 0.5MPa, the pipeline is connected to the spray gun, and the spray gun is inserted into the melt of the molten pool, and the melt contains the following mass percentage Composition: Cu 26%, Fe 25%, S32%, Pb 0.5%, Zn 1.5%, SiO 2 10%, the spray gun is a double-layer casing spray gun, and the fuel and combustion aid are sprayed into the melt through different channels in the spray gun. It is the geometric center of the melt surface, and the insertion depth of the spray gun is 500mm; when ...

Embodiment 3

[0044] The copper bath smelting method based on oxygen-enriched immersion combustion of biomass fuel oil has the following specific steps: the oil-gas mixture formed by jatropha oil biodiesel and oxygen-enriched (oxygen-enriched oxygen accounts for 70% by volume) is used as fuel and combustion-supporting material, the fuel and combustion-supporting material are delivered to the pipeline controlled by the regulating valve, the fuel and combustion-supporting material are pressurized to a pressure of 0.4MPa, the pipeline is connected to the spray gun, and the spray gun is inserted into the melt of the molten pool, and the melt contains the following mass Percent composition: Cu 26%, Fe 24%, S 31%, Pb 0.4%, Zn 1.0%, SiO 2 6%, the spray gun is a double-layer casing spray gun, and the fuel and combustion aid are sprayed into the melt through different channels in the spray gun. The depth is 350mm, using one spray gun, the amount of biomass fuel to be injected per ton of mixture is ...

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Abstract

The invention relates to a copper molten pool smelting method based on biomass fuel oil oxygen-enriched submerged combustion, and belongs to the technical field of metal smelting. Biomass fuel oil and a gas-oil mixture formed in an oxygen-enriched mode are used as fuel and a combustion-supporting material, and the fuel and the combustion-supporting material are conveyed to a pipeline controlled by a regulating valve. The pipeline is connected with a spray gun. The spray gun is inserted into a melt of a molten pool. The spray gun is a double-layer casing pipe spray gun. The fuel and the combustion-supporting material are sprayed into the melt via different channels in the spray gun separately. The insertion mode of the spray gun refers to one or any combination of top insertion, lateral insertion and bottom insertion. The gas-oil mixture ejected out of the spray gun is burnt in a high-temperature environment wrapped by the melt to supply heat to the melt, and meanwhile the gas-oil mixture and high-temperature fuel gas generated by means of combustion can form an intense stirring effect on the melt. By the adoption of the copper molten pool smelting method, the problems that in an existing copper molten pool smelting technological process, the heat transfer effect is poor, fossil fuel consumption is excessively large, carbon emission is high and smelting cost is also high are solved.

Description

technical field [0001] The invention relates to a copper melting pool smelting method based on oxygen-enriched submerged combustion of biomass fuel oil, which belongs to the technical field of metal smelting. Background technique [0002] Melting pool smelting is an internationally advanced non-ferrous metal pyrometallurgy technology, which is suitable for smelting non-ferrous metals such as copper, nickel and tin. Commonly used melt pool smelting methods are: Tenient method, Mitsubishi method, Osmet method, Vanukov method, Aisa method, Noranda method, top-blown rotary converter method, silver method, Shuikoushan method , Dongying bottom blowing oxygen-enriched smelting method. Take the Aisa method as an example, the Aisa method uses the Aisa furnace as the melting furnace, and the Aisa furnace adopts a flat-top circular furnace body lined with refractory bricks. The spray gun is inserted into the furnace from the top of the furnace, and injects gas and fuel into the mixtu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00
CPCC22B15/003
Inventor 王华张小辉胡建杭李法社王仕博刘慧利卿山
Owner KUNMING UNIV OF SCI & TECH
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