Refractory Balls for Heat Storage in Hot Blast Stoves
Application Industry: Refractories for Steel Industry
Application Equipment: Hot Blast Stove Regenerator (Cowper Stove Checker Chamber)
Size: Standard diameter per Hot Blast Stove regenerator design (custom formulation on request)
Products Overview
Our Refractory Balls for Heat Storage in Hot Blast Stoves are refractory porcelain ball products manufactured from industrial alumina and refractory kaolin as the main raw materials, scientifically formulated, formed, and calcined at high temperature. The product family delivers high mechanical strength, good chemical stability with no chemical reaction with materials, and maximum service temperature reaching 1900 °C.
The Refractory Balls for Heat Storage in Hot Blast Stoves product family is offered in ten engineering-proven grades covering an alumina content range of 5% to 75% and a refractoriness of 1790 °C for all grades. The grades include Mechanism High-Density High-Alumina Ball, Mechanism High-Strength Magnesium Aluminum Ball, Mechanism High-Strength High-Density Aluminum Ball, Mechanism High-Alumina 65 Low Creep Ball, Mechanism High-Alumina 75 Low Creep Ball, Mechanism Magnesium Aluminum Chrome Ball, Mechanism Magnesium Chrome Ball, Manual Magnesium Chrome Ball, Handmade High-Strength Aluminum Ball, and Handmade Low Creep Ball.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Refractory Balls for Heat Storage in Hot Blast Stoves grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from industrial alumina and refractory kaolin as the main raw materials, scientifically formulated, formed, and calcined at high temperature
- Engineering-proven high mechanical strength and long service life in Hot Blast Stove regenerator service
- Good chemical stability with no chemical reaction with materials at high temperature
- Maximum service temperature reaching 1900 °C for the most demanding Hot Blast Stove regenerator zones
- Ten grade chemistry variants covering alumina range 5 to 75 percent for matching different Hot Blast Stove regenerator positions
Product Specification
Standard ball diameter is engineered per buyer’s Hot Blast Stove regenerator design and checker chamber geometry. Custom grain size and chemistry optimization available on request.
| Items | Brands | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mechanism High-Density High-Alumina Ball | Mechanism High-Strength Mg-Al Ball | Mechanism High-Strength High-Density Alumina Ball | Mechanism High-Alumina 65 Low Creep Ball | Mechanism High-Alumina 75 Low Creep Ball | Mechanism Mg-Al-Cr Ball | Mechanism Mg-Cr Ball | Manual Mg-Cr Ball | Handmade High-Strength Aluminum Ball | Handmade Low Creep Ball | |
| Al2O3 content ≥ (%) | 75 | 5 to 10 | 75 | 65 | 75 | 5 to 10 | — | — | 65 | 75 |
| Fe2O3 content ≤ (%) | — | — | 1.5 | 1.5 | 1.5 | — | — | — | 1.5 | 1.5 |
| MgO content ≥ (%) | — | 8.5 | — | — | — | 55 | 80 | 85 | — | — |
| Cr2O3 content ≥ (%) | — | — | — | — | — | 2 | 2 | — | — | — |
| Apparent Porosity ≤ (%) | 22 | 18 | 23 | 22 | 21 | 20 | 20 | 22 | 23 | 22 |
| Bulk Density ≥ (g/cm³) | 2.4 | 2.85 | 2.55 | 2.6 | 2.65 | 2.8 | 2.6 | 2.55 | 2.2 | 2.55 |
| Crushing Strength (Normal Temperature) ≥ (N/cm²) | 16,000 | 18,000 | 20,000 | 15,000 | 15,000 | 15,000 | 20,000 | 12,000 | 12,000 | 12,000 |
| Refractoriness ≥ (°C) | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 | 1790 |
| RUL 0.2 MPa ≥ (°C) | 1550 | 1550 | 1480 | 1500 | 1520 | 1520 | 1520 | 1510 | 1480 | 1480 |
| Reheating Linear Change (%) | 0.1 to 0.4 (1550 °C × 2h) | — | — | 0.1 to 0.4 (1500 °C × 2h) | 0.1 to 0.4 (1520 °C × 2h) | — | — | — | — | — |
| Thermal Shock Stability ≥ (cycles) | 40 | 18 | 15 | — | — | 15 | 15 | 15 | — | — |
| Creep Rate (%) | — | — | — | <1.3 (1450 °C × 50h × 0.2 mpa) | <1.0 (1450 °C × 50h × 0.2 mpa) | — | — | — | — | <1.3 (1450 °C × 50h × 0.2 mpa) |
Note: Crushing Strength is measured at normal temperature in N/cm² per PDF original. For full chemical analysis including Trace elements, contact CH Refractories engineering. The product is suitable for high and low temperature shifting furnaces, reforming furnaces, hydroconverters, desulfurization tanks, and methanol furnaces in fertilizer plants, as well as Hot Blast Stoves and heating converters in the steel industry.
Product Applications
Refractory Balls for Heat Storage in Hot Blast Stoves are refractory porcelain ball products manufactured from industrial alumina and refractory kaolin, engineered for Hot Blast Stove regenerator, fertilizer plant shifting furnace, reforming furnace, hydroconverter, desulfurization tank, methanol furnace, and heating converter service. The product family delivers high mechanical strength, long service life, good chemical stability, and excellent high temperature resistance up to 1900 °C.
Application Industry: Refractories for the Steel Industry (Hot Blast Stove Sub-Category) plus general chemical plant service.
Target Equipment: Hot Blast Stove Regenerator (Cowper Stove Checker Chamber), Fertilizer Plant High and Low Temperature Shifting Furnace, Reforming Furnace, Hydroconverter, Desulfurization Tank, and Methanol Furnace.
Specific Application Zones: The Mechanism High-Density High-Alumina Ball grade is optimized for upper checker chamber positions. The Mechanism High-Strength Magnesium Aluminum Ball grade provides thermal stability for cold and hot checker positions. The Mechanism High-Alumina 65 and 75 Low Creep Ball grades deliver low creep behavior for high temperature regenerator positions. The Mechanism Magnesium Aluminum Chrome Ball grade provides resistance to hydrogen sulfide and slag deposition in coal-based Hot Blast Stove service. The Manual Magnesium Chrome Ball grade delivers the highest magnesia content for the most demanding high-purity regenerator service.
CH Refractories is a Refractory Balls for Heat Storage in Hot Blast Stoves manufacturer in China, Henan, Zhengzhou. The complete Refractory Balls for Heat Storage in Hot Blast Stoves product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for the Steel Industry customers across the global iron and steel value chain.
