Appropriative castable for coal injection pipe
Application Industry: Refractories for Cement Industry
Application Equipment: Cement Kiln Coal Injection Pipe
Size: Custom coal injection pipe castable geometry per cement kiln design (free engineering on request)
Products Overview
Our Appropriative castable for coal injection pipe is a high-performance castable engineered for cement kiln coal injection pipe service. The product family is based on the characteristics of materials such as andalusite, corundum-mullite, composite material, and differential combination of activated aluminum powder. It has the characteristics of good thermal shock stability, high corrosion resistance, stable volume, no cracking and no peeling, with stable quality and good engineering performance for cement kiln coal injection pipe service.
The Appropriative castable for coal injection pipe product family is offered in three engineering-proven PJZ chemistry grades. The CH-PJZ68 grade features Al2O3 content minimum 68% for general cement kiln coal injection pipe service, with Bulk Density minimum 2.6 g/cm3 after 110 °C curing for 24 hours, Cold Crushing Strength minimum 60 MPa after 110 °C curing for 24 hours and minimum 70 MPa after 1400 °C firing for 3 hours, Modulus of Rupture minimum 8 MPa after 110 °C curing for 24 hours and minimum 11 MPa after 1400 °C firing for 3 hours, and Permanent Linear Change ±0.5 percent after 1400 °C firing for 3 hours. The CH-PJZ72 grade features Al2O3 content minimum 72% for higher-demand coal injection pipe service, with Bulk Density minimum 2.7 g/cm3, Cold Crushing Strength minimum 70 to 80 MPa, and Modulus of Rupture minimum 9 to 12 MPa. The CH-PJZ78 grade features Al2O3 content minimum 78% for highest-demand coal injection pipe service, with Bulk Density minimum 2.8 g/cm3, Cold Crushing Strength minimum 80 to 90 MPa, and Modulus of Rupture minimum 9 to 12 MPa.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Appropriative castable for coal injection pipe grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for Cement Industry category, or contact our technical sales team for a free consultation against your refractory drawing.
Product Features
Features:
- Manufactured from andalusite, corundum-mullite composite material with activated aluminum powder as micro-fine binder
- Engineering-proven good thermal shock stability, high corrosion resistance, and stable volume for coal injection pipe service
- Three PJZ chemistry grades covering Al2O3 content minimum 68%-78% for matching different coal injection pipe service requirements
- No cracking and no peeling performance for long service life in coal injection pipe service conditions
- Bulk Density minimum 2.6 to 2.8 g/cm3 after 110 °C curing for 24 hours with good volume stability
Product Specification
The appropriative castable for coal injection pipe is based on the characteristics of materials such as andalusite, corundum-mullite, composite material, and differential combination of activated aluminum powder. It has the characteristics of good thermal shock stability, high corrosion resistance, stable volume, no cracking and no peeling.
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Brands
Items
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CH-PJZ68 | CH-PJZ72 | CH-PJZ78 | |
|---|---|---|---|---|
| Al2O3 (%) ≥ | 68 | 72 | 78 | |
| Bulk density (g/cm³) ≥ (110°C × 24h) |
2.6 | 2.7 | 2.8 | |
| Flexural strength (MPa) ≥ | 110°C × 24h | 8 | 9 | 9 |
| 1400°C × 3h | 11 | 12 | 12 | |
| Compressive strength (MPa) ≥ | 110°C × 24h | 60 | 70 | 80 |
| 1400°C × 3h | 70 | 80 | 90 | |
| Line rate of change PLC (%) ≤ (1400°C × 3h) |
±0.5 | ±0.5 | ±0.5 | |
Note: Five performance parameters specified: Al2O3 content, Bulk density, Flexural strength, Compressive strength, and Line rate of change. Three PJZ chemistry grades engineered for cement kiln coal injection pipe service. For project-specific chemistry and grade, contact CH Refractories engineering.
Product Applications
Appropriative castable for coal injection pipe is a high-performance castable engineered for cement kiln coal injection pipe service. The product family is based on the characteristics of materials such as andalusite, corundum-mullite, composite material, and differential combination of activated aluminum powder. It has the characteristics of good thermal shock stability, high corrosion resistance, stable volume, no cracking and no peeling, with stable quality and good engineering performance for cement kiln coal injection pipe service.
Application Industry: Refractories for Cement Industry.
Target Equipment: Cement Kiln Coal Injection Pipe of small, medium-size, and large cement kilns in cement industry operations.
Specific Application Zones: The CH-PJZ68 grade (Al2O3 content minimum 68%) is the standard variant for general cement kiln coal injection pipe service. The CH-PJZ72 grade (Al2O3 content minimum 72%) is the higher-demand variant for cement kiln coal injection pipe service. The CH-PJZ78 grade (Al2O3 content minimum 78%) is the highest-demand variant for cement kiln coal injection pipe service. All three grades deliver Bulk Density minimum 2.6 to 2.8 g/cm3 after 110 °C curing for 24 hours, Cold Crushing Strength minimum 60 to 90 MPa depending on grade and curing/firing condition, Modulus of Rupture minimum 8 to 12 MPa depending on grade, and Permanent Linear Change ±0.5 percent after 1400 °C firing for 3 hours.
CH Refractories is an Appropriative castable for coal injection pipe manufacturer in China, Henan, Zhengzhou. The complete Appropriative castable for coal injection pipe 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 Cement Industry customers across the global cement value chain.
