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Small inclined tuyere sleeve

A technology of small tuyere and oblique tuyere, which is applied in the direction of the tuyere, can solve the problem of easy wear and tear of the small tuyere of the oblique tuyere, and achieve the effect of reducing the shutdown rate, avoiding wear and tear, and reducing the number of damages

Inactive Publication Date: 2012-11-07
JIGANG GRP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003]The purpose of the present invention is to provide a small sleeve with inclined tuyere, which solves the problem that the front end of the small sleeve with inclined tuyere is easy to wear

Method used

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  • Small inclined tuyere sleeve

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Embodiment Construction

[0008] Such as figure 1 As shown, a small tuyere cover includes a small tuyere body 1, the two ends of the small tuyere body 1 are respectively fixed with a front end face 2 and a rear end face 3, the front end face 2 is parallel to the rear end face 3, and the small tuyere cover The body 1 is provided with a hot air channel 4 , and the center line of the hot air channel 4 forms an included angle with the center line of the rear end surface 3 .

[0009] The hot air channel 4 is inclined downwards, and its rear end face 3 and front end face 2 are parallel to each other. Therefore, the upper part of the front end face 2 does not appear to protrude into the furnace, which can reduce or even avoid the wear of the upper part of the front end face 2, and can reduce the inclination. The number of damaged tuyeres is conducive to reducing the shutdown rate of the blast furnace, which is conducive to the energy saving and emission reduction of the blast furnace.

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Abstract

The invention relates to a small inclined tuyere sleeve, relates to an ironmaking blast-furnace tuyere sleeve and solves the problem that front ends of traditional small inclined tuyere sleeves are easy to abrade. The small inclined tuyere sleeve comprises a small tuyere sleeve body, a front end surface and a rear end surface are fixed at two ends of the small tuyere sleeve body respectively and are parallel to each other, a hot air channel is arranged in the small tuyere sleeve body, and a centre line of the hot air channel and a centre line of the rear end surface form an angle. According to the small inclined tuyere sleeve, the front end surface and the rear end surface of a tuyere are parallel to each other, so that the upper portion of the front end surface isn't protruded towards the inside of the tuyere, the abrasion of the upper portion of the front end surface can be reduced or even avoided, the quantity of damaged small tuyere sleeves can be reduced, the reduction of the damping down ratio of a blast furnace is facilitated, and energy conservation and emission reduction of the blast furnace are facilitated.

Description

technical field [0001] The invention relates to an iron-making blast furnace tuyere cover, in particular to a small oblique tuyere cover. Background technique [0002] The blast furnace used for ironmaking needs to send hot air into the furnace through the tuyeres, especially the small tuyeres. Due to special needs, the tuyeres are divided into straight tuyeres and oblique tuyeres. Vertical, so that the front and rear end faces of the tuyere small sleeve are not parallel. Because the front and rear end surfaces of the small tuyere cover are not parallel, the upper front end surface of the small tuyere cover appears to "protrude" into the furnace, causing the upper front end surface of the small tuyere cover to be easily worn. Contents of the invention [0003] The purpose of the present invention is to provide a small sleeve with inclined tuyere, which solves the problem that the front end of the small sleeve with inclined tuyere is easy to wear. [0004] The technical s...

Claims

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Application Information

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IPC IPC(8): C21B7/16
Inventor 蔡漳平高贤成位连增高新运辛虹霓肖海龙王连杰周家梅王岩田鹏
Owner JIGANG GRP
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