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a flash furnace

A melting pool and reaction tower technology, applied in the field of sky flash furnace, can solve problems such as inability to smelt oxide ore, and achieve the effects of avoiding heat loss, short life, and high pipeline cost

Active Publication Date: 2018-04-20
TIANJIN FLASH IRONMAKING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention aims to propose a sky flash furnace to solve the problem that the existing flash furnace cannot smelt oxide ore

Method used

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Embodiment Construction

[0043] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0044] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

A skyflash furnace, comprising a reaction tower (1) and a feeding device for feeding materials to the reaction tower (1). A vaporizing chamber (5) is connected to the reaction tower (1). At least one melting pool (2) is provided at a lower portion of the reaction tower. Each melting pool (2) is provided with a side-blowing melting pool section having an inner width less than 3 m. A side-blowing layout is provided at a side of the side-blowing melting pool section. The skyflash furnace further comprises a flue (3) for discharging flue gases generated in a reaction process. The flue (3) is in communication with the reaction tower (1) by means of the melting pool (2). On one hand, the skyflash furnace can generate a high-concentration reducing gas in the vaporizing chamber (5), provide heat required for smelting in space, and guarantee that the reducing reaction of a metal oxidized ore floating and dropping in the reaction tower (1) can be conducted quickly and effectively. On the other hand, by setting the side-blowing melting pool section, positions of the melting pool (2) can be blown completely to supplement heat and provide a reducing agent for the melting pool to complete reduction of the remaining metal oxides to be smelted in the oxidized ore.

Description

technical field [0001] The invention belongs to the field of metallurgy, in particular to a sky flash furnace. Background technique [0002] From its invention to the present, flash metallurgy has only been used in the smelting of metal sulfide ores, and has not been applied to the smelting of oxide ores. Take the flash smelting of copper sulfide ores as an example. The flash copper smelting process is to sulfide the dried powdered copper The concentrate is fully mixed with oxygen-enriched air through the concentrate nozzle and then sprayed into the flash furnace. Thermal dissociation and oxidation reactions are carried out in the high-temperature reaction tower, so that part of the iron in the copper concentrate is oxidized and removed by slagging, and the output is copper-containing. Tall matte. Since the reaction of sulfide and oxygen will release a lot of heat, there is no need to add additional heat to the molten pool, just inject oxygen-containing gas. [0003] Schem...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B15/00
CPCC22B15/0047C22B15/00
Inventor 李效东夏明邱江波黄小兵
Owner TIANJIN FLASH IRONMAKING TECH CO LTD