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Swirling flow flash smelting process

A process and flash technology, applied in the field of cyclone flash smelting process, can solve the problems of poor material dispersion and short material falling track in flash furnace, achieve good dispersion and mixing effect, extend track, and improve chemical reaction efficiency effect

Active Publication Date: 2016-08-17
TIANJIN FLASH IRONMAKING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention aims to propose a swirling flow flash smelting process to solve the problem that the material dispersion effect of the existing flash furnace is not good, the falling trajectory of the material in the reaction tower space is too short, and the space cannot be fully utilized for suspension smelting And other issues

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Embodiment Construction

[0032] 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.

[0033] 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

The invention provides a swirling flow flash smelting process. The process comprises the following steps that (1) raw materials are prepared, and raw ores and fluxing agents are crushed and dried; (2) swirling flow is manufactured, an airflow guide-in device arranged on the sidewall of a reaction tower of a flash furnace is used for jetting reactant gas into the flash furnace at a high speed and brings heat in, a swirling flow area is formed in the reaction tower, and a high-temperature environment of 1000-1450 DEG C is formed in the reaction tower; (3) materials are charged; and (4) swirling flow smelting is carried out. Through the swirling flow flash smelting process provided by the invention, on one hand, the dropping track of ore powder can be lengthened, and the ore powder can make more contact with the reactant gas, so that the chemical reaction efficiency of the ore powder and the reactant gas in the space of the reaction tower is improved, the smelting efficiency of the ore powder is improved, and the utilization rate of the reactant gas is increased; and on the other hand, the dispersion effect of the ore powder can be optimized, the ore powder is orderly distributed from the center of the reaction tower to the edge according to the sizes of particles, and the situation that the materials are stacked in the center of the flash furnace is avoided.

Description

technical field [0001] The invention belongs to the field of flash smelting, in particular to a cyclone flash smelting process. Background technique [0002] In the flash furnace currently in use, the main materials (such as ore powder, oxygen, flux, etc.) participating in the reaction are fed into the furnace from the nozzle located on the top of the reaction tower. Due to the limited space inside the nozzle, even if the material is fed Devices such as dispersing cones disperse the materials, but the actual dispersing effect of the materials is not ideal. In addition, since the air flow direction of the flash furnace flows from the reaction tower through the upper flue of the molten pool to the ascending flue, the falling direction of the material in the reaction tower is almost the same as the air flow direction, so the trajectory of the suspended ore powder falling is short. The effect of space smelting is limited. [0003] At present, some people try to create a swirl ...

Claims

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Application Information

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IPC IPC(8): C22B5/12C22B23/02
CPCC22B5/12C22B23/02
Inventor 黄小兵邱江波夏明
Owner TIANJIN FLASH IRONMAKING TECH CO LTD
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