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- Product type
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Category
Glass Furnace - RegeneratorGlass
The regenerator in a glass furnace is a device designed to store the heat of high-temperature exhaust gases generated by burner combustion and preheat the combustion air for the next cycle. It plays a critical role in improving thermal efficiency during the glass melting process.
Structure and Temperature Range of the Regenerator
| Structure | Temperature Range | Description |
|---|---|---|
| Upper Gas Dome Area | 1,200–1,400℃ | Directly exposed to flames and high-temperature gases. |
| Checker Block Area (Middle Zone) | 1,000–1,300℃ | Responsible for storing and releasing heat. Faces combined effects of thermal shock and chemical corrosion during alternating cycles. |
| Lower Flue Area and Air Inlet | 800–1,000℃ | Low-temperature zone, primarily facing challenges such as thermal shock and dust deposition. |
Examples of Refractory Applications
| Part | Main Refractory Used | Properties |
|---|---|---|
| ①Upper Gas Dome Area | Silica brick, alumina-zircon brick, high-alumina brick | Heat resistance, thermal shock resistance, resistance to Na vapor corrosion |
| ②Checker Blocks | Magnesia brick, Magnesia-spinel brick, high-alumina brick | High heat storage capacity (specific heat & thermal conductivity), volume stability, thermal shock resistance, chemical stability (resistance to Na₂O, Cl, SOx) |
| ③Sidewalls | High-alumina brick, silica brick | Chemical stability (resistance to Na₂O, Cl, SOx), prevention of peeling |
| ④Bottom Area | High-alumina brick | Strength and durability, resistance to thermal shock |
Quality Table
These data are typical properties subject to reasonable variation and should not be treated as specifications.
Standard product
［Refractory brick］
| Brand | Main raw materials | Chemical composition / ％ | Bulk density | Apparent porosity % |
Cold crushing strength MPa |
Refractoriness under load T2 / ℃ |
Refractoriness SK |
Thermal spalling resistance JIS 1000℃ times-loss％ |
Linear thermal expansion / ％ | Thermal conductivity / W/(m·K) | Mortar |
Application | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiO₂ | Al₂O₃ | MgO | Fe₂O₃ | CaO | Cr₂O₃ | 1000℃ | 400℃ | 1000℃ | ||||||||||
| PRA-AS | Magnesia | 1 | 0.4 | 97.5 | 0.3 | 0.8 | 2.85 | 18.0 | 70 | >1700 | >40 | 7times-0% | 1.30 | 5.3 | M-PA | ② | ||
| RRR-U36T | Magnesia, Chrome-ore | 2 | 8 | 74 | 4 | 1 | 11 | 3.05 | 18.0 | 45 | >1700 | >40 | 20times-0% | 1.20 | 3.7 | M-R7 | ② | |
| RRR-U34 | Magnesia, Chrome-ore | 2.3 | 8.5 | 72 | 4.2 | 1 | 12 | 2.95 | 20.0 | 45 | >1700 | >40 | 20times-0% | 1.10 | 3.5 | M-R7 | ② | |
| ML-A | Mullite | 28 | 70 | 0.8 | 2.40 | 20.0 | 88 | 1620 | 38 | 10times-0% | 0.50 | 2.1 | 2.4 | M-MLA | ②③ | |||
| ML-B | Mullite | 35 | 62 | 1 | 2.40 | 18.0 | 90 | 1570 | 37 | 10times-0% | 0.50 | 1.7 | M-MLA | ②③ | ||||
| CR-36 | Alumina, Mullite | 39 | 58 | 1 | 2.35 | 20.0 | 65 | 1490 | 36 | 10times-0% | 0.55 | M-SA | ②③④ | |||||
| CR-34 | Mullite, Fire clay | 52 | 44 | 1.3 | 2.25 | 18.0 | 54 | 1460 | 34 | 10times-0% | 0.54 | 1.4 | 1.8 | M-SA36S | ②③④ | |||
| SD-1 | Silica stone | 96 | 0.6 | 0.1 | 1 | 2 | 1.83 | 21.0 | 40 | T1 1630 | 33 | 1.26 | M-SD-B | ①③ | ||||
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