Oxygen gun opening nitrogen sealing device

An oxygen muzzle and nitrogen sealing technology, which is used in the manufacture of converters and other directions, can solve the problems of high temperature flue gas and dust leakage, poor nitrogen sealing effect, and no treatment, so as to achieve reliable sealing, reduce energy consumption, and improve sealing. effect of effect

Inactive Publication Date: 2014-06-25
JIGANG GRP
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AI Technical Summary

Problems solved by technology

[0004] The traditional oxygen lance nitrogen sealing device mainly has the following problems: First, the nitrogen sealing effect is poor, especially when splashing occurs in the converter smelting process, because the instantaneous pressure of the converter flue gas increases, it will cause a large amount of high-temperature flue gas and dust outside Second, th

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Embodiment Construction

[0024] The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1 to Figure 3 As shown, a nitrogen sealing device for an oxygen muzzle of the present invention includes a nitrogen sealing plug 1 and a nitrogen sealing seat 2, the nitrogen sealing plug 1 includes an upper large mouth end and a lower small opening end, and the outer surface of the nitrogen sealing plug 1 and the nitrogen sealing seat The inner surface of 2 forms a matching sealing surface. The nitrogen sealing seat 2 is provided with an oxygen gun port, the nitrogen sealing plug 1 is set on the oxygen lance 3, and the lower part of the nitrogen sealing plug 1 is provided with a nitrogen sealing round hole Ⅰ9. Hole I9 communicates with a plurality of nitrogen channels I11, nitrogen sealing round hole II10 is arranged on the upper part of nitrogen sealing plug 1, nitrogen sealing round hole II10 communicates with multipl...

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Abstract

The invention relates to equipment belonging to the field of converter steelmaking, and in particular relates to an oxygen gun opening nitrogen sealing device. The nitrogen sealing device comprises a nitrogen sealing plug and a nitrogen sealing base, wherein the nitrogen sealing plug comprises an upper big-port end and a lower small-port end; matched sealing surfaces are formed by the outer surface of the nitrogen sealing plug and the inner surface of the nitrogen sealing base; an oxygen gun opening is formed in the nitrogen sealing base; an oxygen gun is sleeved with the nitrogen sealing plug; a nitrogen sealing round hole I is formed in the lower part of the nitrogen sealing plug; the nitrogen sealing round hole I is communicated with a plurality of nitrogen channels I; a nitrogen sealing round hole II is formed in the upper part of the nitrogen sealing plug; the nitrogen sealing round hole II is communicated with a plurality of nitrogen channels II; a conical cavity is formed in the nitrogen sealing plug. The nitrogen sealing device disclosed by the invention has the advantages of being capable of sealing twice and decompressing high-pressure smoke, and good in sealing effect.

Description

technical field [0001] The invention relates to equipment in the field of converter steelmaking, in particular to an oxygen muzzle nitrogen sealing device. Background technique [0002] As the steel industry is facing increasing pressure on environmental protection, the impact of flue gas and dust produced by converter steelmaking on the environment is more sensitive. the key of. The oxygen lance is installed above the vaporization flue of the converter, and a large amount of high-temperature flue gas and dust are generated during the steelmaking process of the converter. However, due to the poor sealing effect of the oxygen lance, a large amount of high-temperature flue gas and dust leak out, which will cause Environmental pollution, equipment damage and even casualties. [0003] Converter steelmaking can be divided into multiple processes such as iron loading, smelting, tapping, slag splashing, slag dumping, furnace repair, treatment of oxygen lance sticking to steel, an...

Claims

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Application Information

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IPC IPC(8): C21C5/46
Inventor 张润生孙争取刘丽荀文竹张明亚刘建伟李寿金王玲珑孔雅刘莉
Owner JIGANG GRP
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