Overview:
Regenerative balls with high strength, wear resistance, thermal conductivity and heat capacity, high thermal storage efficiency, good thermal stability, not easy to break when drastic changes in temperature and so on.
Especially suitable for air separation plants and steel mills regenerator for Regenerative blast furnace gas filler gas and air through the double preheating the combustion temperature is reached quickly rolling billet heating requirements.
Implementation of quality standards: By National Standard HG/T 3683.1-2000
Payment: 100% advance after sign the contract by T/T or within 20 days by see B/L
Deliver time: Within 10-15 days after receive payment.
Packing: Woven Bag or Iron barrel
Price: The prices is different in different specifications,between USD 170 and USD 1700
The following is regenerative ball's packing:
Indicators |
ASU balls with regenerative |
Furnace with regenerative balls |
Chemical composition |
Al2O3(%) |
20-30 |
60-65 |
Al2O3+SiO2(%) |
≥90 |
≥90 |
Fe2O3(%) |
≤1 |
≤1.5 |
Size (mm) |
10-12/12-14 |
16-18/20-25 |
Heat capacity(j/kg.k) |
≥836 |
≥1000 |
Thermal conductivity (w/m.k) |
2.6-2.9 |
------ |
Thermal conductivity() |
800 |
1000 |
Refractoriness() |
1550 |
1750 |
Wear rate (%) |
≤0.1 |
≤0.1 |
Mohs hardness ( Grade ) |
≥6.5 |
≥6.5 |
Compressive Strength (Mpa) |
800-1200 |
1800-3200 |
Bulk density (g / cm3) |
1300-1400 |
1500-1600 |