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Central vortex column flash smelting process

A flash smelting and vortex technology, which can be used in rotary drum furnaces, crucible furnaces, furnaces, etc., and can solve problems such as limited

Inactive Publication Date: 2006-03-22
CHINA NERIN ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a countermeasure, it is effective to develop high-performance refractory materials and strengthen water cooling protection, but they are all limited

Method used

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  • Central vortex column flash smelting process
  • Central vortex column flash smelting process
  • Central vortex column flash smelting process

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Embodiment Construction

[0011] A central vortex column flash smelting process. The equipment of this process is composed of a reaction tower, a sedimentation tank and an ascending flue. The nozzle is the power source for generating the vortex column. The nozzle includes an air chamber 1 and an air inlet pipe 2; the air chamber 1 is Conical shape, the interior is vertically divided into several concentric vortex chambers 6 that are not connected to each other at the upper part and converge at the lower part. The vortex chamber at the center of the passing air cavity is fixedly connected with the upper part of the vortex chamber. The atomizing air pipe 4 is fixed in the center of the concentrate chute 3 and passes through the concentrate chute 3. The lower end of the air pipe 4 is provided with an umbrella-shaped dispersing cone. 7. There are spray holes in the horizontal direction on the dispersing cone, and the upper part of the concentrate chute is equipped with an ore inlet pipe 8 and an air pipe 5 ...

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Abstract

The invention discloses a kind of centre swirl flash quick smelting process. The process sprays the dried powder materials and oxygen into the reactor form the muzzle at the centre of the top, and forms the swirl pole high temperature reaction area along the shaft line of the reactor. There has a ring untouchable transition circle between the high temperature reaction area and the reactor wall in lengthwise. There has a ring untouchable transition circle that has particle grad, oxygen potential grad and temperature grad which weakened towards the reactor wall direction between the high temperature reaction area and the reactor wall. Because of the untouchable circle, it reduces the impact of high temperature, particles, and air, so it can protect the reactor wall.

Description

technical field [0001] The invention relates to a flash smelting process of copper, nickel and other powdery materials, in particular to a central vortex column flash smelting process. Background technique [0002] The flash furnace needs to withstand the harsh conditions of high temperature, erosion and strong corrosion, and the lining is severely damaged. As a countermeasure, it is effective to develop high-performance refractory materials and strengthen water cooling protection, but they are all limited. Contents of the invention [0003] The purpose of the present invention is to provide a central vortex column flash smelting process, which is a metallurgical process that does not completely rely on refractory materials. [0004] The technical solution of the present invention is: a central vortex column flash smelting process, in which dry powdery materials and oxygen are injected tangentially from a nozzle located at the center of the top of the reaction tower, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B15/00C22B23/02
Inventor 张文海欧阳伟詹小青梅炽谢锴
Owner CHINA NERIN ENG CO LTD
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