Refractory bricks for ironmaking blast furnace hearth are a raw material with excellent fire resistance characteristics, which can be well applied in high-temperature natural environments. Therefore, they are often used in various high-temperature kilns and furnaces. In order to better and more effectively apply refractory bricks for ironmaking blast furnace hearth, refractory brick manufacturers require everyone to understand the hazards faced by the application of refractory bricks.
The refractory brick lining used in the furnace hearth of an ironmaking blast furnace forms the indoor space of the smelting plant. It immediately contacts the molten steel and the refractory brick lining of the furnace hearth is damaged by various factors, which can be divided into two categories: one is the clear and continuous characteristics of the entire process of the ironmaking blast furnace smelting plant, and the other is the structural elements of the refractory brick lining. As a refractory brick manufacturer, Ruiwo Refractory Materials strives to design a well planned refractory brick shape, manipulate the masonry structure of the refractory bricks, and alleviate the damage to the refractory brick lining of the furnace hearth during the entire process of ironmaking and blast furnace smelting.
For a certain element, there are three key aspects: high temperature; Firstly, the mechanical equipment of molten steel and slag iron is washed and worn out; Organic chemical corrosion of refractory brick lining caused by compounds in molten steel and slag iron. In a high-temperature natural environment, refractory bricks are used for the lining of the furnace hearth. If the high temperature of the furnace main cylinder exceeds the application temperature of the refractory bricks, it will cause corrosion of the refractory bricks; The mechanical equipment for flushing the furnace hearth with molten steel and slag iron causes the working pressure inside and outside the furnace hearth to wear out during the tapping process; The corrosion of FeO and MnO contained in molten steel and slag iron endangers the consumption of refractory brick lining in the furnace hearth. These three aspects are all unavoidable damages to the furnace hearth lining throughout the entire process of the smelting plant.
May 10, 2023
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