Alumina Three-Hole Saddle Ring: High-Performance Refractory Support And Heat Storage Element

Product Introduction
The Alumina Three-Hole Saddle Ring is a specialized ceramic packing element manufactured from high-purity alumina (Al₂O₃) material through high-pressure forming and high-temperature sintering. Its name derives from its unique structural design: a cylindrical shape with three parallel through-holes evenly distributed along its axis. This three-hole structure significantly increases the specific surface area and porosity while ensuring mechanical strength. It features an extremely high refractoriness, excellent thermal shock resistance, outstanding chemical inertness, and high mechanical strength, making it an ideal choice for extreme high-temperature and corrosive environments.

Primary Applications

• Industrial Furnaces/Kilns: Widely used as a heat storage medium in Regenerative Thermal Oxidizer (RTO) and Regenerative Catalytic Oxidizer (RCO) systems for efficient waste heat recovery from flue gases.

• Chemical Industry Packing: Used as catalyst supports or corrosion-resistant packing in reaction towers and packed columns within industries like petrochemicals and fertilizer production.

• Metallurgical Industry: Used for support, separation, or thermal radiation elements in high-temperature furnace chambers.

• Environmental Protection Equipment: Serves as high-temperature and corrosion-resistant support grids or packing layers in flue gas treatment units.

Core Advantages

1. Resists Extreme Temperatures: High softening point allows for long-term, stable operation in environments exceeding 1600°C.

2. Excellent Thermal Stability: The three-hole structure facilitates heat transfer and offers good thermal shock resistance, withstanding rapid temperature changes without cracking.

3. Superior Chemical Corrosion Resistance: Demonstrates strong resistance to acidic and alkaline gases, as well as molten slag.

4. High Strength & Wear Resistance: High bulk density and robust structure provide high crush strength and a long service life.

5. Efficient Heat Storage/Mass Transfer: The porous structure offers a vast gas-solid contact area, enhancing heat storage efficiency and reaction efficiency.

Specifications Table

Raw material preparation (high-purity alumina powder) → Dry pressing or isostatic pressing → Precision trimming → High-temperature sintering (>1700°C) → Dimensional and performance inspection → Packaging and storage.

Instructions for Use

1. Before Installation: Ensure the furnace or tower interior is level and clean.

2. During Installation: Arrange in a regular or staggered random pile pattern to ensure uniform gas distribution and avoid local blockage.

3. During Heat-up: Follow the prescribed furnace drying curve for the equipment to prevent damage from thermal stress due to rapid temperature increases.

4. During Operation: Avoid direct impact from materials and prevent severe temperature fluctuations.

After-Sales Service
We provide comprehensive technical consulting and installation guidance services. The product warranty period is 12 months from the date of shipment. In case of quality issues under normal operating conditions, we promise a rapid response and offer solutions including replacement, return, or technical support.

FAQ (Frequently Asked Questions)

• Q: What are the advantages compared to ordinary ceramic Raschig rings?
  A: Higher mechanical strength and better thermal shock resistance, making it particularly suitable for demanding high-temperature heat storage and corrosive environments where strength and durability are critical.

• Q: How to choose the Al₂O₃ content?
  A: The choice depends on the operating temperature and corrosiveness. For higher temperatures and stronger corrosive conditions, grades with 99% or higher purity are recommended.

• Q: Can dimensions be customized?
  A: Yes. We support custom production based on customer drawings or specific requirements.