Refractory balls (Al₂O₃ 55-99%, Φ25/40/50/60/75mm, crush load ≥40kN/ball, refractoriness ≥1790℃) maximize specific surface for efficient regenerative exchange. For regenerators of pebble-type hot blast stoves and regenerative reheating furnaces, and petrochemical regenerative air preheaters.
| Al₂O₃ Content | 55-99% |
|---|---|
| Diameter | Φ25/40/50/60/75mm |
| Crushing Strength | ≥ 40 kN per piece |
| Refractoriness | ≥1790℃ |
Refractory balls are spherical heat-storage media of high-alumina or corundum: Al₂O₃ 55-99%, diameters Φ25/40/50/60/75mm, crushing strength ≥40 kN/ball and refractoriness ≥1790℃. Large specific surface, high heat-exchange efficiency and crush resistance make them ideal heat-storage beds for hot blast stoves and regenerative heaters. It is Henan Songrui's core heat-storage grade.
Zone by temperature: corundum/high-grade high-alumina for hot zones, ordinary high-alumina for cooler zones; ball size per bed design. Charging schemes available.
Charge in layers with mixed sizes for higher packing density; replenish regularly to keep the bed intact.
Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or charging schemes, contact Manager Zheng (17513376789 / 17513376789@163.com).
Refractory balls serve as spherical heat-storage media:
Ball-type stoves, regenerative reheating furnaces, petrochemical preheaters.
Common diameters 20-60mm, selected by equipment; grades include high-alumina, fireclay, mullite.
Yes—balls cycle through heating/cooling; life depends on temperature swings and grade.
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