Qilin 1515 Insulation Block

Modular Rigid Lining Enables Long-term Stable and Efficient Operation of Kilns

At the core of kilns in metallurgy, ceramics, chemical and other industries, the performance of lining materials directly determines production efficiency, energy consumption and operational safety. When conventional fiber materials are exposed to sustained temperatures above 1300°C, they commonly suffer shrinkage deformation, degraded thermal insulation and structural pulverization. This leads to unstable furnace conditions, higher heat consumption and frequent shutdowns for maintenance.

The launch of Qilin 1515 Insulation Block addresses all these pain points. It is not merely a simple alternative to fiber blankets, but a comprehensive innovation from material form to application philosophy. Featuring prefabricated rigid modular design, it delivers accurately sized, consistently performing and quickly installed robust thermal barriers for industrial high-temperature equipment.

I. Form Revolution: Fundamental Advantages of Modular Rigid Structure

Unlike fiber blankets installed by laying, Qilin 1515 Insulation Block adopts prefabricated rigid modular units. This structural difference delivers decisive merits unattainable by flexible fiber blankets in practical industrial applications.

Unrivalled Structural IntegrityArranged in parallel and staggered assembly patterns, the blocks form a sturdy, seamless monolithic furnace lining. Fundamentally preventing thermal short circuits caused by interlayer separation and widening gaps of fiber blankets under high temperature and gas flow erosion, it maintains a permanently dense thermal barrier.

Superior Durability for Harsh ConditionsFlexible blankets are vulnerable to erosion in furnace environments with high-velocity gas flow, dust or mild mechanical friction (e.g., kiln car passages, burner surroundings). The rigid body of the insulation block boasts stronger resistance to scouring and abrasion, greatly extending service life under severe working conditions.

Precision Dimensions & Controllable ConstructionEach block is a precision precast component. The finished lining achieves far better flatness and tighter dimensional tolerances than manually laid fiber blankets. This ensures accurate realization of designed thermal curves and enables consistent, controllable construction quality for large-scale kilns.

II. Core Performance: Reliability Defined by Rigorous Test Data

The outstanding performance of Qilin 1515 Insulation Block stems from verified key parameters. Its classification temperature reaches 1500°C, with a safe long-term service temperature ≤1400°C, capable of handling the most demanding working conditions. In terms of critical high-temperature volume stability, its linear shrinkage is controlled below 1.0% after 24-hour heating at 1400°C, exceeding common industry standards. That means the lining structure barely deforms or cracks during long-term operation.

Meanwhile, its thermal conductivity can be as low as ≤0.12 W/(m·K) at a hot face temperature of 600°C. Combined with high-purity composition of ≥99% Al₂O₃+SiO₂+ZrO₂, it achieves exceptional thermal insulation and outstanding chemical erosion resistance. The optimized bulk density of 220±10 kg/m³ balances sufficient mechanical strength and convenient installation.

III. Core Application Scenarios: Delivering Certainty to Critical Equipment

Qilin 1515 Insulation Block is ideal for applications prioritizing long-term stability, minimized downtime and consistent process performance:

• High-end ceramic firing kilns (high-temperature zones of shuttle kilns & roller hearth kilns): Maintain minimal temperature variation inside kilns for consistent product quality, withstanding thousands of rapid heating-cooling cycles.

• Precision metal heat treatment furnaces: Provide uniform and stable thermal fields, the foundation for obtaining precise material properties.

• Chemical reformers and other environments requiring strict sealing: Its rigid structure acts as a core barrier to guarantee gas tightness and prevent medium leakage.

Choosing Qilin 1515 Insulation Block replaces the gradual performance degradation and structural variation of flexible materials with fixed geometry, stable long-term performance and predictable maintenance cycles. At the frontier of industrial high temperatures up to 1400°C, it is more than just thermal insulation material — a reliable, predictable rigid functional component built into core equipment structures, delivering a long-term guarantee of efficiency and safety for high-end manufacturing.

Aladdin New Materials

Aladdin High Temperature Materials Co., Ltd. has over 30 years of development experience as a professional ceramic fiber manufacturer integrating production, R&D and engineering development. We operate four major production bases nationwide in Hebei, Shandong, Shanxi and Jiangsu, equipped with more than 10 production lines and an annual output exceeding 40,000 tons.

All Aladdin ceramic fiber products come with corresponding test reports and comply with national standards. If you are interested in our products, please send us a private message or type "PURCHASE" to obtain our contact information.