For high-temperature industrial enterprises such as metallurgy, cement, and glass, the quality of fire bricks directly affects kiln life and production safety. Choosing the right supplier is crucial. Many companies have suffered huge losses due to problems such as high-temperature flaking and dimensional deviations caused by incorrect supplier selection. This article outlines a scientific selection framework from a practical perspective.
fire brick
1.Certification: Upholding Entry Barriers
Compliance certification is the first line of defense against risk. Focus on three types: production qualifications (ISO 9001, Industrial Product Production License), product performance certification (EU CE, Industry Quality Product Certification), and special scenario certification (such as the GB/T 2275-2007 standard for blast furnace bricks). A steel company that purchased refractory bricks without proper certification experienced brick cracking three months after blast furnace operation, serving as a lesson. Verifying the authenticity of certifications is essential during procurement.
2.Product Performance: Matching Scenario Needs
Core indicators must be adapted to the specific scenario. Key indicators include: high-temperature resistance (refractory strength 50-100℃ higher than kiln temperature), room-temperature compressive strength (metallurgical ≥40MPa, cement ≥30MPa), thermal shock stability (flexural strength loss ≤20% after 1100℃ water cooling cycle), and bulk density (≥2.6g/cm³). A cement company’s rotary kiln transition zone, due to a lack of consideration for alkali corrosion, resulted in high-alumina bricks having a lifespan of only 10 months. Replacing them with alkali-resistant special bricks extended this to 18 months.
3. Supply Chain and After-Sales Service: Ensuring Continuous Production
Supply Chain
A stable supply chain is crucial. This involves assessing production capacity (annual capacity at least 1.5 times demand), raw material inventory (supporting 3 months of production), and logistics (delivery within 7 days to remote areas). A glass company suffered a loss of 800,000 yuan due to a 5-day kiln shutdown caused by a supplier’s raw material shortage. After-sales service is also critical, requiring suppliers to provide installation guidance, batch quality inspection reports with QR code traceability, 24-hour fault response, and 48-hour on-site handling.
In summary, enterprises can use the framework of “qualification screening for entry, performance matching for scenarios, supply chain continuity assurance, and after-sales risk reduction” and combine it with case verification to select fire brick suppliers that meet their needs and build a solid safety line for high-temperature production.
