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One-step copper smelting process and its device

A copper smelting and crafting technology, applied in the field of non-ferrous metallurgy, to achieve the effect of high oxygen utilization rate, good heat and mass transfer conditions, and less heat

Active Publication Date: 2015-08-12
DONGYING LUFANG METAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to aim at the defects and deficiencies of the existing smelting process, to provide a one-step copper smelting device and its process which can simultaneously complete the three processes of smelting, blowing and refining in one furnace

Method used

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  • One-step copper smelting process and its device
  • One-step copper smelting process and its device

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Embodiment Construction

[0026] Attached below figure 1 Embodiments of the device structure of the present invention will be described in detail.

[0027] A one-step copper smelting device and its process, the device includes a furnace body 1, a feed port 2, a flue port 3, burners 4 and 5, a slag discharge port 6, a copper discharge port 7, a spray gun 9, a flux port 10, the furnace body 1 It consists of three parts: smelting area, blowing area and refining area, which are separated by retaining wall 8; Two supporting rollers are supported on the foundation, one end of which is equipped with a motor and gear transmission, and the furnace body 1 can be set to rotate along the axis; two rows of staggered arrangements are installed at the bottom of each area, separated by a certain distance, and facing each other at a certain angle. Spray guns 9 that spray oxygen-enriched air or natural gas crosswise into the furnace; feed port 2 is set above the smelting zone, flue port 3 and flux port 10 are set above...

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Abstract

The invention relates to a one-step copper smelting technology and a device thereof. The interior of a furnace body is divided into three zones, namely a smelting zone, a blowing zone and a refining zone, by a retaining wall; and two rows of spray guns which are arranged in a staggered manner and have an included angle with a vertical line are arranged at the bottoms of the zones; return dust is mixed and then added into mixed copper concentrate and a solvent through a charging opening of the smelting zone, oxygen-enriched air is sprayed through the spray guns to carry out self-heating smelting, to generate copper matte; the spray guns in the blowing zone spray oxygen-enriched air so as to blow copper matte into crude copper and slag; the spray guns in the refining zone supply oxygen-enriched air for oxidization, and supply natural gas as a reductant for reduction, and the generated anode copper with high purity is interruptedly discharged form a copper discharging opening, so that the low-altitude pollution problem caused by SO2 can be solved, the operation environment can be greatly improved, the utilization rate of sulfur and heat can be obviously increased, and further the economic benefits can be increased further; in addition, the invention provides a one-step copper smelting technology which is more advanced, shorter in flow, lower in investment, lower in comprehensive energy consumption, higher in recovery rate, and better in comprehensive utilization in comparison with the existing continuous copper smelting technology.

Description

technical field [0001] The invention belongs to the field of non-ferrous metallurgy, and relates to a one-step copper smelting process and a device capable of processing polymetallic complex ores and precious metal associated ores. Background technique [0002] At present, as far as the smelting process is concerned, the pyrometallurgy of copper has been used in industrial production: flash furnace smelting, Noranda smelting, Osmelt smelting, Aisa smelting, silver smelting, bottom blowing smelting and traditional Blast furnace smelting, electric furnace smelting, reverberatory furnace smelting, etc. The above smelting methods are all relatively advanced smelting processes adopted in the world today, except for the last three traditional methods which are difficult to meet the environmental protection standards. As far as copper blowing is concerned, more than 90% of the world today uses PS converters. As far as copper refining is concerned, most of them use rotary furnace ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B15/14C22B5/12
CPCY02W30/54Y02P10/20
Inventor 崔志祥王智申殿邦边瑞民李德松王海滨
Owner DONGYING LUFANG METAL MATERIAL
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