Pingxiang Chemshun Ceramics Co.,Ltd

Alumina ceramic Raschig rings are widely used as tower packing in chemical and environmental industries for efficient gas-liquid mass transfer and separation. Key selection criteria include alumina content, physical strength, dimensions, and operating conditions. Alumina content (typically 92%-99%) directly impacts corrosion resistance and thermal stability, with high-purity variants suitable for highly corrosive or high-temperature environments (up to 1500°C). Mechanically, compressive strength should exceed 250MPa to minimize breakage. Sizing should correspond to column diameter and operational gas velocity, with common diameters ranging from 25-100mm. Smaller sizes provide higher surface area for enhanced mass transfer but increase pressure drop. Practical selection requires comprehensive evaluation of process conditions. For acidic/alkaline environments, high-purity alumina (e.g., 99% Al₂O₃) ensures chemical inertness. Thermal shock resistance must be verified for high-temperature ...

When selecting wear-resistant alumina ceramic lining til es, key considerations include the material's physical properties, structural design, and suitability for working conditions. Alumina content is a critical indicator, typically requiring over 92% to ensure excellent hardness and wear resistance. Density should exceed 3.6 g/cm ³ , with Rockwell hardness not less than HRA85. For high-impact environments, models with alumina content above 95% are recommended, offering compressive strength over 850 MPa. Additionally, verify compliance with standards such as GB/T 5593 or ASTM C773 to guarantee performance reliability. The structural design and installation method directly affect service life. Monolithic lining plates suit flat surfaces, while mosaic-style small blocks adapt to curved equipment. Thickness selection depends on particle impact velocity: choose 15-20 mm for flows below 15 m/s, and 20-30 mm for velocities exceeding 30 m/s or with large material impact. The installation...