Oxygen mixing and uniform distribution device

Abstract

The invention provides an oxygen mixing and uniform distribution device. The oxygen mixing and uniform distribution device comprises a main pipeline, an oxygen outer ring pipe annularly arranged outside the main pipeline at intervals, and a plurality of oxygen distribution branch pipes uniformly distributed at intervals along the periphery of the main pipeline, one end of each oxygen distributionbranch pipe is communicated with the oxygen outer ring pipe, and the other end of each oxygen distribution branch pipe is communicated with the main pipeline and is positioned in a longitudinal projection plane perpendicular to an axis of the main pipeline; and a connecting line of the center of one end of each oxygen distribution branch pipe and the center of the main pipeline forms a reference line, and an included angle between the axis of each oxygen distribution branch pipe and the corresponding reference line serves as an acute angle. The oxygen mixing and uniform distribution device hasthe beneficial effects that the arrangement structure is adopted by the multiple oxygen distribution branch pipes, so that airflow rotational flow of oxygen streams in the circumferential direction of the main pipeline can be realized, a better oxygen and air mixing effect is achieved, and the length of the pipeline required by air and oxygen mixing is shortened.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment, in particular to an oxygen mixing and uniform distribution device. Background technique [0002] Iron and steel smelting is a vital part of modern industry. In the process of iron and steel smelting, blast furnaces are required. Existing blast furnaces usually use the reaction of air and coke to generate reducing gas to realize the reduction reaction of iron ore. Due to the oxygen content in the air Relatively thin, the combustion calorific value of the blast furnace cannot be maximized, the efficiency of iron and steel smelting is low, and the economic benefits of enterprises are poor, which cannot meet the development needs of modern industry. [0003] The metallurgical industry needs to provide a mixed gas that mixes air and oxygen in a certain proportion during the iron and steel smelting process. Oxygen-enriched blast is one of the effective means of blast furnace intensifie...

AI Technical Summary

Problems solved by technology

The disadvantage is that oxygen will be wasted during operation, and oxygen enrichment before the machine needs to strictly control the oxygen enrichment rate of the mixed gas to avoid production accidents such as fires.

During the operation, the oxygen mixing effect is poor, which affects the reaction effect. At the same time, the local reaction temperature is too high, which affects the safe and stable operation of the system and is more likely to cause accidents

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