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Combined type tuyere small sleeve

A small tuyere sleeve and combined technology, applied in the direction of the tuyere, can solve the problems of poor working conditions, burnout of the small tuyere sleeve, and short service life of the small tuyere sleeve, so as to improve the cooling effect, reduce the probability of burning out, and reduce the The effect of production costs

Active Publication Date: 2013-02-20
MCC CAPITAL ENGINEERING & RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under actual working conditions, the working conditions of the small tuyere sleeve are harsh, and the thermal corrosion is serious, resulting in serious burning of the small tuyere sleeve and short service life
Moreover, for the traditional small tuyeres, there are also great limitations on the blowing medium.

Method used

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  • Combined type tuyere small sleeve
  • Combined type tuyere small sleeve
  • Combined type tuyere small sleeve

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Embodiment Construction

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0033] Please refer to figure 1 , is a structural schematic diagram of the combined tuyere sleeve of the present invention. As shown in the figure, the combined tuyere sleeve proposed by the present invention includes a central sleeve 1, a first sleeve 2, a second sleeve 3, a third sleeve 4, an inner sleeve 5, a front cap 6 and a rear cap 7, One end (rear end) of the central casing 1 is provided with an oxygen-coal medium inlet 12 for inserting an oxygen-coal spray gun (not shown in the figure), and the pulverized coal is transported through the spray gun, and the other end (front end) of the central casing 1 is ) is fixedly connected with an inner sleeve 5, and the central sleeve 1 communicates with the inner cavity of the inne...

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Abstract

The invention discloses a combined type tuyere small sleeve which comprises a central sleeve, an internal sleeve, a first sleeve, a second sleeve and a third sleeve, wherein the central sleeve is fixedly socketed with the internal sleeve to form an oxy-coal medium channel; the gap between the first sleeve and the central sleeve forms a cooling water inflow channel, the gap between the second sleeve and the first sleeve forms a gas medium channel, the gap between the third sleeve and the second sleeve forms a cooling water backflow channel, a front cap and a rear cap which are in an integrated structure are fixedly connected with one ends far away from a water inflow port and a water backflow port of the cooling water inflow channel and the cooling water backflow channel, and the cooling water inflow channel and the cooling water backflow channel are communicated through the front cap and the rear cap, thus forming a cooling water circulating channel; and the front cap is provided with an oxy-coal medium outlet and a gas medium outlet. The invention has the advantages of simple structure, good cooling effect, high reliability and safety, and long service life.

Description

technical field [0001] The invention relates to a pure oxygen blast furnace or smelting reduction furnace equipment, in particular to a combined tuyere small sleeve for a pure oxygen ironmaking furnace. Background technique [0002] As we all know, in the field of ironmaking, the tuyere sleeve is an indispensable and important part in the traditional ironmaking blast furnace or non-blast furnace, and the quality and performance of the tuyere sleeve directly affect the normal operation and work in the smelting process efficiency. Under actual working conditions, the working conditions of the small tuyere sleeve are harsh, and the thermal corrosion is serious, resulting in serious burning of the small tuyere sleeve and short service life. Moreover, for the traditional tuyeres, there are also great limitations on the blowing medium. [0003] In view of the shortcomings of the above-mentioned prior art, the inventor actively improved and innovated based on relevant design, fie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/16C21B11/00
Inventor 叶果全强吴志宏王艳民祁四清殷宝铎
Owner MCC CAPITAL ENGINEERING & RESEARCH
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