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A method for connecting blast furnace tuyere and iron mouth

A blast furnace and iron hole technology, applied in blast furnace, blast furnace details, blast furnace parts and other directions, can solve problems such as difficulty in judging blast furnace tuyere and iron mouth penetration, low efficiency, etc., to shorten the oxygen burning time, speed up the cleaning process, and reduce operations. The effect of labor intensity

Active Publication Date: 2020-06-16
SHANGHAI MEISHAN IRON & STEEL CO LTD
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for penetrating blast furnace tuyeres and tapholes, which mainly solves the technical problems of low efficiency and difficulty in judging the penetration of blast furnace tuyere and tapholes in the prior art. When it is cold or frozen, it can quickly realize the passage between the tuyere and the tap hole of the blast furnace, restore the tapping of the blast furnace tap hole, and reduce the impact on the normal production of the blast furnace

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  • A method for connecting blast furnace tuyere and iron mouth

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Embodiment Construction

[0020] The present invention will be further illustrated below in conjunction with specific embodiments, and it should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0021] A method for penetrating blast furnace tuyeres and iron ports, comprising the following steps:

[0022] 1) Drill through the mud bag 6 at the 8 places of the blast furnace taphole with a blast furnace taphole opening machine, so that the taphole tunnel 5 of the blast furnace taphole 8 is unblocked;

[0023] 2) remove the middle cover and the small cover of the tuyere 7 of the blast furnace, and remove the coke at the front end of the tuyere 7 of the blast furnace to form a basin;

[0024] 3) Load aluminum ingot 3 and coke 2 in sequence at the front end of blast furnace tuyere 7, first spread aluminum ingot 3 on the iron slag, and then spread coke 2 on the aluminum ingot 3 to form a F...

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Abstract

The invention discloses a method for communicating a blast furnace tuyere and a taphole. The technical problems that the method for communicating the blast furnace tuyere and the taphole in the priorart is low in efficiency and high in cost are solved. According to the technical scheme, the method for communicating the blast furnace tuyere and the taphole comprises the steps that (1) a mud drum at the blast furnace taphole is drilled to be through, and a taphole pore passage of the blast furnace taphole is made smooth; (2) a medium-sized sleeve and a small sleeve of the blast furnace tapholeare removed, and coke at the front end of the blast furnace tuyere is clawed to form an emesis basin; (3) an aluminium ingot and coke are sequentially arranged at the emesis basin at the front end ofthe blast furnace tuyere; (4) oxygen burning operation is conducted at the emesis basin at the front end of the blast furnace tuyere; (5) when molten aluminium seeps out at the taphole pore passage ofthe blast furnace tuyere, oxygen burning operation is stopped. When the method is adopted for treating hearth chill of a blast furnace, the blast furnace tuyere and a high blast taphole can be made to communicate quickly, the time of oxygen burning in the front of the blast furnace is shortened, and the accident handling time is greatly shortened.

Description

technical field [0001] The invention relates to a method for penetrating blast furnace tuyeres and tapholes, in particular to a method for piercing blast furnace tuyeres and tapholes after the blast furnace hearth is frozen to realize blast furnace taphole tapping, and belongs to the technical field of iron and steel metallurgy blast furnace ironmaking. Background technique [0002] After the hearth of the blast furnace freezes, the fluidity of the slag and iron above the iron hole of the hearth is insufficient, or even condenses, and the slag and iron cannot automatically flow out from the iron hole area, resulting in the interruption of the normal smelting process. When it is confirmed that the iron hole cannot discharge slag and iron, the treatment measures include: use the slag hole to tap iron; [0003] The Chinese patent with the authorized notification number CN204022853U discloses a temporary taphole device for hearth freezing, which mainly uses the blast furnace sla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B7/12
CPCC21B7/12Y02P10/20
Inventor 王启敏董跃玲
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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