Checker brick with porous/honeycomb custom holes (Al₂O₃ 45-75%, RUL ≥1500℃) maximizes specific surface area for efficient regenerative heat exchange—the core element of hot stove checkers.
| Al₂O₃ Content | 45-75% |
|---|---|
| Hole Pattern | Custom multi-hole / honeycomb |
| RUL (0.2MPa) | ≥1500℃ |
| CCS | ≥45 MPa |
Checker bricks are special-shaped refractories for hot blast stove regenerators: Al₂O₃ 45-75%, load softening point ≥1500℃ and CCS ≥45 MPa. The multi-hole/honeycomb plate structure gives large specific surface and high heat-exchange efficiency, with hole patterns customized by stove design. It is Henan Songrui's core accessory grade for BF hot blast stove regenerators.
Zone by stove temperature: low-creep/mullite for upper hot zones, high-alumina for middle-lower; holes per process design. Complete regenerator design available.
Align holes strictly during laying to prevent dust plugging; keep channels clear. Installation guidance available.
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 complete proposals, contact Manager Zheng (17513376789 / 17513376789@163.com).
Checker brick is the core heat-exchange element of hot blast stoves:
As the stove heat storage body, alternating heat storage/release heats the blast above 1200℃.
High-alumina/mullite for hot zones, fireclay for lower zones, zoned by temperature.
Yes—five-hole, seven-hole and special patterns made to drawing.
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