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Application of Wear-Resistant Alumina Ceramic Lining Bricks in Ball Mills

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Wear-resistant alumina ceramic lining bricks are manufactured from high-purity alumina (Al₂O₃ content ≥92%) through high-temperature sintering. They exhibit a Mohs hardness of 8-9, bulk density ≥3.60 g/cm³, and water absorption ≤0.01%. Their wear resistance is 266 times that of manganese steel and 172 times that of chromium steel. Suitable for ball mill shell linings, these bricks significantly reduce impact wear on the mill shell from grinding media and prevent ferrous contamination of materials. Common specifications include rectangular bricks, wedge bricks, and profiled bricks, with thickness ranging from 40 mm to 90 mm. The use of alumina ceramic lining bricks in ball mills enhances grinding efficiency and reduces energy consumption. Compared with conventional high-manganese steel liners, ceramic bricks have a lower surface friction coefficient (0.1–0.2), leading to reduced material flow resistance and a 10%–15% decrease in mill specific power consumption. Additionally, the wear ra...
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Low-Alumina Inert Alumina Ceramic Balls: A Key Catalyst Support Material for Industrial Applications

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 Low-Alumina Inert Alumina Ceramic Balls are spherical fillers produced from high-quality chemical-grade china clay through shaping and high-temperature sintering. Their Al₂O₃ content typically falls within the 30%–45% range, with Al₂O₃+SiO₂ ≥90% and Fe₂O₃ ≤1%. Key technical parameters include: water absorption ≤3%, bulk density 1.40–1.50 g/cm³, operating temperature ≥1200°C, Mohs hardness level 7, acid resistance ≥98%, and alkali resistance ≥82%. Crushing strength varies with ball diameter, e.g., ≥420 N for Ф6 mm and ≥2800 N for Ф25 mm particles. The product conforms to China's chemical industry standard HG/T 3683.1—2000, Industrial Ceramic Balls – Inert Ceramic Balls. In industrial reactors, low-alumina inert alumina ceramic balls primarily serve as catalyst bed support media, covering materials, and tower packings. Their functions include: increasing the number of gas or liquid distribution points to achieve uniform flow; buffering the impact of incoming fluids on the catalyst b...
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Core Performance Advantages of Wear-Resistant Alumina Ceramics

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Made from high-purity α-Al2O3 and sintered at 1600–1800°C, wear-resistant ceramics offer ultra-high hardness, excellent high-temperature resistance, chemical stability, and lightweight benefits. They are ideal for industrial equipment protection, effectively solving wear-related issues and promoting the upgrade of various industries toward high efficiency, energy saving, and low carbon. The outstanding performance of alumina wear-resistant ceramics is the foundation for their adaptability to extreme industrial conditions. Verified by professional testing and industrial practice, their key performance indicators far exceed those of traditional metal protective materials. The specific advantages are as follows: Extraordinary wear resistance: Mohs hardness up to 9 (HRA 90–95), second only to diamond. The dense crystal structure results in extremely low wear loss. In dry grinding applications, its wear resistance is 200 times that of manganese steel liners, and up to 500 times in wet ball ...
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Wear-resistant Ceramic Rubber Steel Three-in-one Lining Plate - Composite Wear-resistant Lining Solution

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The three-in-one wear-resistant lining plate is a functional composite made of high-strength alumina ceramic, elastic rubber layer, and mild steel plate via hot vulcanization or adhesive bonding. The ceramic layer (Al ₂ O ₃ content ≥ 92%, HRA hardness ≥ 85) provides surface abrasion resistance; the intermediate rubber layer (Shore A hardness 60 ± 5, tensile strength ≥ 12 MPa) absorbs impact loads and reduces noise; the steel plate layer (Q235B, thickness 3-10 mm) serves as a structural base for bolt or weld fixing. This product integrates the properties of three materials into a single component, suitable for high-wear and medium-to-low impact industrial conditions. Compared with traditional single-material linings, the three-in-one structure offers quantifiable advantages in wear life, installation efficiency, and system protection. The ceramic surface limits wear rate to ≤0.1 mm/1000 h (dry silica sand sliding condition), providing a service life 4-8 times longer than that of high ma...
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Plastic Tower Packing: Performance Characteristics and Applications

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Plastic tower packing is a widely used random or structured filling material in chemical separation processes, primarily manufactured from polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), and polyvinylidene fluoride (PVDF). Its advantages include low density (PP density approx. 0.90–0.92 g/cm³), high corrosion resistance (suitable for most acids, alkalis, and organic solvents), and significantly lower manufacturing cost compared to metal or ceramic packing. The operating temperature of plastic packing generally does not exceed 100°C (PP) to 150°C (PVDF), and it is suitable for atmospheric and low-pressure conditions. Typical plastic tower packings include Pall rings, cascade rings, Intalox saddles, and snowflake rings. For a Φ25 mm Pall ring made of PP, the specific surface area is approximately 200–220 m²/m³, void fraction reaches 90%–92%, and bulk density is about 75–85 kg/m³. Due to structural optimization, cascade rings exhibit 20%–30% lower pressure drop and 10%–15...
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Wear-Resistant Alumina Ceramic Cuttable Perforated Plate: High Hardness and Customizable Processing Solution

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The wear-resistant alumina ceramic cuttable perforated plate is a functional ceramic sheet made from high-purity alumina (Al₂O₃) through high-temperature sintering, offering excellent wear resistance and impact strength. While retaining the high hardness of alumina ceramics, this product allows precise cutting and hole drilling using laser or diamond tools, making it suitable for applications such as mineral sorting, material conveying, wear-resistant linings, and chemical filtration. Standard alumina content ranges from 92% to 99.7%, with bulk density of 3.6–3.9 g/cm³, Rockwell hardness HRA 80–90, and flexural strength ≥300 MPa. Compared with conventional metal or rubber liners, this alumina ceramic plate exhibits 5–8 times higher wear resistance, significantly reducing equipment maintenance frequency over long-term operation. Its low friction coefficient (≤0.2) and high-temperature resistance (operating range -50°C to 1200°C) ensure structural stability in high-temperature dust envir...
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High Alumina Ceramic Balls: Technical Specifications and Industrial Applications

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High alumina ceramic balls are precision ceramic grinding media manufactured from α-alumina (Al₂O₃) as the primary raw material through high-temperature calcination. Typical alumina contents are 92%, 95%, or 99%, corresponding to density ranges of 3.60–3.90 g/cm³ and water absorption below 0.01%. Their dense crystalline structure yields a Vickers hardness (HV) of 1300–1500, imparting excellent wear resistance and chemical stability. In terms of grinding efficiency and energy consumption control, the wear rate of high alumina ceramic balls is typically ≤0.01‰ (calculated per ton of material per hour), significantly lower than that of natural pebbles and conventional zirconium silicate balls. Their low self-wear also effectively reduces iron contamination during the grinding process, making them suitable for powder processing applications with strict requirements for color and purity. These products are widely used in wet and dry ball milling processes across industries such as non-metal...
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