Feed-adjustable premixed concentrate nozzle

Abstract

The invention relates to a feed-adjustable premixed concentrate nozzle which comprises an oxygen supply pipe and a scattering air pipe, wherein the oxygen supply pipe and the scattering air pipe are vertically arranged and are sleeved in order, and the pipe cores of the oxygen supply pipe and the scattering air pipe are overlapped. The outer wall of the scattering air pipe is sleeved with a feed box, and a batch charging port used for inclined downward batch charging is formed in the side face of the feed box. Splitting plates are vertically arranged on the inner side of the feed box and are used for dividing the batch charging port into a plurality of batch charging branch ports, and the width of the batch charging branch ports is regulated by the rotation of the splitting plates. Batch charging channels corresponding to the batch charging branch ports lead mineral aggregates to the specified material chambers in the feed box. The width of all the batch charging branch ports is regulated by the rotation of the splitting plates, so that the batch charging amount of each batch charging branch port is controlled, and further the batch charging amount of the specified material chambers in the feed box can be controlled. The feed-adjustable premixed concentrate nozzle realizes uniform feeding on each point direction in a flash furnace and effectively solves the problem that the burning temperature in the flash furnace is unbalanced.

Description

technical field [0001] The invention belongs to the technical field of copper smelting, and in particular relates to a feed-adjustable premixing concentrate nozzle. Background technique [0002] Patent application 201610632799.5 discloses a vibrating premixed concentrate nozzle. The working process of the nozzle is: the concentrate enters through the feed box, the feed box and the distributor slices play the role of material distribution, and then the material is distributed through the dispersing cone. , mixed with various combustible and combustion-supporting gases such as process air, central oxygen, epoxy air, natural gas and other combustible and combustion-supporting gases by dispersing air and air regulating cone to improve the mixing effect of gas particles and achieve full combustion. However, due to the problem of uneven material distribution in the feed box during the use of this nozzle, it will cause uneven mixing of gas particles in the flash furnace, unsaturate...

AI Technical Summary

Problems solved by technology

However, due to the problem of uneven material distribution in the feed box during the use of this nozzle, it will cause uneven mixing of gas particles in the flash furnace, unsaturated, and insufficient combustion, which will lead to high copper content in slag. The production decline, the increase of polluting gas and the occurrence of production safety and other issues

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