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Steel ladle capping heat-preservation method

A technology of ladle and cover, applied in metal processing equipment, casting melt container, casting equipment, etc., can solve the problems of cycle mismatch, high energy consumption, low temperature of turnover ladle lining, etc., to reduce consumption and improve internal The effect of reducing the lining temperature and reducing the tapping temperature

Inactive Publication Date: 2013-11-20
QINHUANGDAO SHOUQIN METAL MATERIAL +1
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Solve the problems of high energy consumption and low lining temperature of the turnover ladle due to the mismatch of the process cycle of the converter and the casting machine

Method used

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  • Steel ladle capping heat-preservation method

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Embodiment Construction

[0013] 1. Enhancing the thermal insulation performance of the cover 5: making the thermal insulation and baking cover 5, adding a layer of heat-insulating material 4 between the refractory knotting material 2 and the steel shell 3, and extending the cover 5 with heat-insulating refractory fiber felt 300mm in diameter, increase the cover skirt 6, so that the cover 5 can seal the mouth of the ladle.

[0014] 2. Adjust the ladle turnover process: cover all the ladles that have withdrawn from the turnover and keep them warm for 3 hours, then put the ladle into the turnover sequence. When cleaning the steel slag at the nozzle, one ladle is forcibly withdrawn for heat preservation to speed up the turnover of the ladle.

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Abstract

The invention discloses a steel ladle capping heat-preservation method, and belongs to the technical field of steel-making steel ladle transferring. According to the steel ladle capping heat-preservation method, a heat-preservation baking ladle cover is manufactured, a layer of thermal-insulation heat-preservation materials are additionally arranged between fireproof knotting materials and a steel case, the diameter of the ladle cover is prolonged, and a ladle cover skirt hem is increased. The steel ladles exiting transferring are all caped to preserve heat, and the steel ladles are put into a transferring sequence. The steel ladle capping heat-preservation method has the advantages that steel ladle heat loss during the transferring process is reduced, consumption of natural gas is greatly reduced, transferred steel ladle lining temperature is improved, and tapping temperature is reduced.

Description

technical field [0001] The invention belongs to the technical field of steelmaking ladle turnover, and in particular relates to a method for adding a cover to a ladle for heat preservation. In the process of ladle withdrawing from the turnover process, the heat loss of the ladle is reduced, the consumption of natural gas is saved, the temperature of the inner lining of the turnover ladle is increased, and the tapping temperature is reduced. Background technique [0002] The 400mm extra-thick slab continuous casting machine newly invested by a domestic steel plant was successfully put into production sequence on June 29, 2010. The capacities are different, and the pouring cycle of the three casting machines is shorter than the converter smelting cycle, so in order to meet the normal production order, more ladles have to be put into the turnover sequence. The production of the three casting machines is carried out alternately, and the number of ladles circulating online must ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/00
Inventor 李永生朱志远王浩然段雪亮杨建平崔小勇刁德全石锦雄秦登平危尚好谢翠红李广双
Owner QINHUANGDAO SHOUQIN METAL MATERIAL
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