Phosphate brick
Application Industry: Refractories for Cement Industry
Application Equipment: Cement Kiln Transition Zone, Kiln Mouth, Kiln Door Cover, and Cooler Inner Lining
Size: Custom phosphate brick geometry per cement kiln design (free engineering on request)
Products Overview
Our Phosphate brick is a high-performance refractory product engineered for cement kiln transition zone, kiln mouth, kiln door cover, and cooler inner lining service. Phosphate refractory bricks are characterized by four points: higher strength and good wear resistance, good chemical resistance (alkali resistance better than clay bricks and high alumina bricks), good thermal shock resistance, and high load softening temperature. Therefore, it is often used in the transition zone of the rotary kiln, the kiln mouth, the kiln door cover, the lining of the cooler and other parts of the refractory brick that are easy to loose and fall.
The Phosphate brick product family is offered in three engineering-proven chemistry grades. The CH-PZ75 grade (Phosphate combined wear-resistant brick) features Al2O3 content minimum 75%, Fe2O3 content maximum 2.1%, Refractoriness minimum 1770 °C, Bulk Density minimum 2.7 g/cm3, Cold Crushing Strength minimum 70 MPa, Refractoriness Under Load minimum 1350 °C at 0.2 MPa, and Thermal Shock Resistance minimum 20 cycles at 1100 °C for general cement kiln transition zone service. The CH-PA75 grade features Al2O3 content minimum 75%, Fe2O3 content maximum 2.1%, Refractoriness minimum 1770 °C, Bulk Density minimum 2.75 g/cm3, Cold Crushing Strength minimum 75 MPa, Refractoriness Under Load minimum 1300 °C, and Thermal Shock Resistance minimum 20 cycles for higher-demand cement kiln transition zone service. The CH-PT80 grade (Special phosphate brick) features Al2O3 content minimum 80%, Fe2O3 content maximum 1.8%, Refractoriness minimum 1790 °C, Bulk Density minimum 2.9 g/cm3 (Heavy Part), Cold Crushing Strength minimum 80 MPa, Refractoriness Under Load minimum 1520 °C for highest-demand cement kiln service, with a Lightweight Part option featuring Al2O3 content minimum 55% and Bulk Density minimum 1 g/cm3 for insulated cement kiln lining service.
Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Phosphate brick 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:
- Phosphate bonded refractory brick with high strength, good wear resistance, and good chemical corrosion resistance
- Engineering-proven higher strength and good wear resistance, with alkali resistance better than clay bricks and high alumina bricks
- Three PZ, PA, and PT chemistry grades covering Al2O3 content 55-80% for matching different cement kiln service requirements
- Good thermal shock resistance and high load softening temperature for cement kiln transition zone service
- Often used in transition zone, kiln mouth, kiln door cover, cooler inner lining, and other parts of refractory brick that are easy to loose and fall
Product Specification
Phosphate refractory bricks are characterized by the following four points:
- Higher strength and good wear resistance.
- Good chemical resistance. (The alkali resistance is better than clay bricks and high alumina bricks)
- Good thermal shock resistance.
- The load softening temperature is higher.
Therefore, it is often used in the transition zone of the rotary kiln, the kiln mouth, the kiln door cover, the lining of the cooler and other parts of the refractory brick that are easy to loose and fall.
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Brands
Items
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Ordinary phosphate brick | Phosphate combined wear-resistant brick | Special phosphate brick | Phosphate composite brick | |
|---|---|---|---|---|---|
| CH-PZ75 | CH-PA75 | CH-PT80 | Heavy part | Lightweight part | |
| Al2O3 (%) ≥ | 75 | 75 | 80 | 75 | 55 |
| Fe2O3 (%) ≤ | 2.1 | 2.1 | 1.8 | 2 | 1.5 |
| Refractoriness (°C) ≥ | 1770 | 1770 | 1790 | 1770 | — |
| Bulk density (g/cm³) ≥ | 2.7 | 2.75 | 2.9 | 2.8 | 1 |
| Cold crushing strength CCS (MPa) ≥ | 70 | 75 | 80 | 75 | 5.5 |
| 0.2Mpa load softening temperature RUL (°C) ≥ | 1350 | 1300 | 1520 | 1350 | — |
| Thermal stability (1100°C) (cycle) ≥ | 20 | 20 | 0.7 | — | — |
Note: Seven performance parameters specified: Al2O3 content, Fe2O3 content, Refractoriness, Bulk density, Cold crushing strength, 0.2Mpa load softening temperature, and Thermal stability. Four phosphate chemistry grades engineered for transition zone of the rotary kiln, the kiln mouth, the kiln door cover, the lining of the cooler and other parts. For project-specific chemistry and geometry, contact CH Refractories engineering.
Product Applications
Phosphate brick is a high-performance refractory product engineered for cement kiln transition zone, kiln mouth, kiln door cover, and cooler inner lining service. Phosphate refractory bricks are characterized by four points: higher strength and good wear resistance, good chemical resistance (alkali resistance better than clay bricks and high alumina bricks), good thermal shock resistance, and high load softening temperature. Therefore, it is often used in the transition zone of the rotary kiln, the kiln mouth, the kiln door cover, the lining of the cooler and other parts of the refractory brick that are easy to loose and fall.
Application Industry: Refractories for Cement Industry.
Target Equipment: Cement Kiln Transition Zone, Kiln Mouth, Kiln Door Cover, and Cooler Inner Lining of small, medium-size, and large cement kilns in cement industry operations.
Specific Application Zones: The CH-PZ75 grade (Phosphate combined wear-resistant brick) features Al2O3 content minimum 75% for general cement kiln transition zone service, with Cold Crushing Strength minimum 70 MPa. The CH-PA75 grade features Al2O3 content minimum 75% for higher-demand cement kiln transition zone service, with Cold Crushing Strength minimum 75 MPa. The CH-PT80 grade (Special phosphate brick) features Al2O3 content minimum 80% (Heavy Part) for highest-demand cement kiln service, with Refractoriness minimum 1790 °C and Cold Crushing Strength minimum 80 MPa, with a Lightweight Part option featuring Al2O3 content minimum 55% and Bulk Density minimum 1 g/cm3 for insulated cement kiln lining service. All three grades deliver good thermal shock resistance, high load softening temperature, and good alkali resistance for cement kiln service.
CH Refractories is a Phosphate brick manufacturer in China, Henan, Zhengzhou. The complete Phosphate brick 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.
