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Prolonging Blast Furnace Lining Life is the Key to Blast Furnace Longevity

Prolonging Blast Furnace Lining Life is the Key to Blast Furnace Longevity

Extending the life of blast furnace has become the main symbol of the technological progress of modern blast furnace, which can reduce the cost of overhaul and maintenance of blast furnace, effectively reduce the project investment and save the construction cost. Extending the life of blast furnace can also reduce the cost of large and medium repair of blast furnace, reduce the impact of frequent large and medium repair of blast furnace on production, to ensure the full play of the capacity of steel enterprises in each process equipment, to improve the economic efficiency of steel enterprises is of great significance. It can be seen that it is of great significance to extend the life of blast furnace from the consideration of reducing the cost of ironmaking production.

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2023

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Wet Spraying Technology for Blast Furnace -- The Inevitable Trend of Blast Furnace Maintenance

Wet Spraying Technology for Blast Furnace -- The Inevitable Trend of Blast Furnace Maintenance

With the increase of the operation time of the blast furnace, the refractory material of the furnace lining is getting thinner and thinner. For example, the temperature of the local gas in the furnace rises sharply, the adhesion of the furnace wall falls off, etc., and the furnace shell may appear local redness, cracking, deformation, and even be forced to wind down. Therefore, it is very important to maintain the furnace lining in the middle and late stage of blast furnace service. As one of the main technical means of artificial lining, spraying technology has the characteristics of large lining area and long lining maintenance time.

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2023

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The new breakthrough of the whole casting technology of the furnace cylinder, innovation and expansion, leading the new development of the industry

The new breakthrough of the whole casting technology of the furnace cylinder, innovation and expansion, leading the new development of the industry

The use of the fourth generation of sialon carbon-nitrogen high-strength composite materials for the overall pouring of the blast furnace cylinder, the fundamental solution to the traditional masonry brick lining complex construction, gas and other problems, widely used in blast furnace cylinder maintenance, new blast furnace cylinder design, greatly improve the construction efficiency at the same time, reduce the cost of repair. At present, some of the domestic blast furnace maintenance, furnace cylinder pouring has been extended to the furnace belly, furnace waist and other parts.

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2023

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Analysis of How to Operate Blast Furnace Before Opening After Spraying Lining?

Analysis of How to Operate Blast Furnace Before Opening After Spraying Lining?

Blast furnace spraying is a method of rapid lining of a blast furnace, which can be used to reduce the material surface for local spraying, regular furnace type, but also in the blast furnace repair when the overall spraying, shorten the blast furnace repair time, rapid recovery of production. It is an effective means for rapid lining of blast furnaces and is continuously used by most blast furnaces. The rapid overhaul of the blast furnace, the overall pouring of the furnace cylinder, the spraying of the furnace belly and the lining of the furnace body, greatly shortened the overhaul time, and soon resumed production.

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