09
2019
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08
The technological requirements and composition of breathable bricks
Source： KECHUANG New Materials
Release time：2019-08-09 16:02
In the steelmaking process, inert gas is blown through porous bricks at the bottom of the converter ladle. This is mainly to purge gases and solid impurities from the molten steel, achieving uniform steel composition and temperature. In short, porous bricks are crucial gas supply components installed at the bottom of the converter ladle.
In the steelmaking process, inert gas is injected through porous bricks at the bottom of the converter ladle. This is primarily to purge gases and solid impurities from the molten steel, leading to a uniform steel composition and temperature. In short, porous bricks are crucial gas supply components installed at the bottom of the converter ladle.
(Image) Anti-Seepage Porous Brick
Steelmakers cite three main causes for porous brick damage during steelmaking: thermal shock from the temperature difference between the molten steel and the ladle causing cracks and spalling; erosion and penetration from slag in the molten steel; and scouring and erosion from the stirring and flow of the molten steel. Therefore, porous bricks must have high thermal strength, thermal shock stability, wear resistance, erosion resistance, and corrosion resistance. In addition, safe use and good gas permeability must also be ensured.
Slit porous bricks offer a wide adjustable gas supply range, meeting the requirements for gas flow at different stages of smelting. The reduced reverse impact during gas injection makes slit porous bricks increasingly popular. These bricks are primarily made of corundum, combining a base brick, a porous brick core, and a steel casing. A stainless steel casing with an argon gas pipe is fitted onto the prepared porous brick core, then placed into the opening of the base brick. Refractory mud fills the gaps between the steel casing assembly and the base brick, forming a complete porous brick.
(Image) Split-Type Porous Brick
Luoyang Kechuang New Materials Co., Ltd. has 17 years of experience in producing porous bricks, boasting rich experience and sophisticated technology. A trustworthy professional manufacturer! Among them, the patented FS series Anti-Seepage Ladle Bottom Argon Blowing Porous Brick requires less or no cleaning during use, reducing manual intervention and effectively reducing abnormal melting damage to porous bricks caused by oxygen blowing and washing; In addition, the patented DW and GW series products developed and produced Slit Ladle Bottom Argon Blowing Porous Brick due to its unique formula, effectively reduces the consumption of porous bricks caused by thermal stress, mechanical wear, and chemical corrosion. Through personalized customization for customer sites, it meets the different process requirements of different customers, effectively extending the service life of porous bricks, reducing customer costs, and increasing customer profits. Luoyang Kechuang New Materials Co., Ltd., focusing on the research, development, production, and sales of porous bricks for 22 years, is a professional porous brick manufacturer, welcome to call for consultation.
Source: Luoyang Kechuang New Materials Co., Ltd.: https://www.kcnh.com/
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