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Gasification cooling flue for steel-making converter

A technology for vaporizing cooling flue and steelmaking converter, which is applied in the manufacture of converters, etc., can solve the problems of increasing the workload of maintenance and slag cleaning, failing to achieve cooling flue gas, etc., so as to reduce the phenomenon of slagging and slagging, and prolong the service life. , the effect of improving labor intensity

Active Publication Date: 2006-12-13
WUXI XIANGLONG GLOBAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of smoke and dust accumulated on the straight section of the flue will affect the exchange between the heating pipe and the flue gas, fail to achieve the effect of cooling the flue gas, and increase the workload of maintenance and slag removal

Method used

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  • Gasification cooling flue for steel-making converter
  • Gasification cooling flue for steel-making converter
  • Gasification cooling flue for steel-making converter

Examples

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Embodiment Construction

[0041] see figure 2 , The vaporization cooling flue used in the forced circulation steelmaking converter of the present invention is composed of a movable hood 14, a fixed section flue 15 at the furnace mouth, an intermediate section flue 17 and an end section flue 18. The movable fume hood 14 is placed above the converter, and the movable fume hood 14, the fixed section flue 15 at the furnace mouth, the middle section flue 17 and the final section flue 18 are sequentially connected.

[0042] see Figure 6 A circulation pump 26 is added in the circulation loop between the movable fume hood 14 and the air bubble 23 of the fixed section flue 15 of the furnace mouth and the lower header 24.

[0043] see Figure 7 , Expansion joints 28 are used to connect between the flue 15 of the fixed section of the furnace mouth and the flue 17 of the middle section.

[0044] see Figure 8 , The connection between the middle section of the flue 17 and the end section of the flue 18 adopts...

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Abstract

The invention relates to an evaporated cooling flue, which consists of movable hood for fume(14), glory-hole fixed field flue (15), intermediate field flue(17) and final guidance flue(18), and the movable hood for fume (14) is placed above the converter, the movable hood for fume (14), glory-hole fixed field flue(15), intermediate field flue (17) and final guidance flue (18) are sequentially connected, and is characterized in that: in the circulation water loop between the upper bubble (23) and the lower collector (24) of the movable hood for fume(14) and the glory-hole fixed field flue(15) a circulating pump (26) is supplemented, between the glory-hole fixed field flue(15) and the intermediate field flue (17) the expansion knot(28)is adopted for interconnection, a narrow straight run inclined bent-tube interconnecting structure (30) is adopted at the junction location of the intermediate field flue (17) and the final guidance flue(18), and the nichrome coating (31) is covered on the inner surface of the movable hood for fume (14) and the glory-hole fixed field flue (15). The invention can make the inside water in the pipe keep adequate all the time, can flex in flue length direction, and can effectively solve the aerated water layer-build problem in flue flat field and the slag-sticking problem of the flue inner surface and the gas scouring problem.

Description

Technical field: [0001] The invention relates to a vaporization cooling flue for a steelmaking converter. Oxygen top-blown converter steelmaking equipment [0002] technology field. Background technique: [0003] The oxygen top-blown converter steelmaking method is a steelmaking technology that has been produced and developed in the past 50 years. It does not need external heat supply, and uses the carbon in the molten iron to combine with industrial pure oxygen to generate heat for the needs of steelmaking. Oxygen passes through the oxygen lance, from the top of the furnace mouth of the converter, and penetrates into the appropriate position above the molten iron in the converter for blowing. During the blowing process, iron oxides and carbides in molten iron produce a large amount of carbon monoxide and release a large amount of heat at the same time. The ejected gas is called furnace gas, and its main components are carbon monoxide (86-90%) and carbon dioxide (about 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46
Inventor 赵建新钱飞舟邓伟
Owner WUXI XIANGLONG GLOBAL TECH CO LTD
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