Core Application Fields

Comprehensive specialization across nine core application fields, providing advanced refractory material solutions including revolutionary sintered AZS bricks, premium high-alumina solutions, advanced silica fume technology, and ultra-high performance castable materials for diverse industrial applications

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Glass Manufacturing - Revolutionary Sintered AZS Technology

Revolutionary carbon-free sintered zirconium corundum brick technology offering superior performance over traditional fused cast alternatives. Hubei Zhongnai's comprehensive AZS-16 to AZS-41 series provides uniform microstructure, exceptional thermal shock resistance, and energy-efficient production for advanced glass manufacturing applications.

  • Premium glass furnaces: AZS-33 for furnace walls and pavement, AZS-36 for melting pool applications
  • Electric furnace zones: AZS-41 premium grade for critical high-temperature areas requiring maximum performance
  • Superior microstructure: <5% glass phase versus 15-25% in traditional fused cast alternatives
  • Energy efficiency: Lower production temperatures reduce energy consumption by 20-30% compared to conventional methods
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Steel Metallurgy - Advanced High-Alumina Applications

The most critical application field for high-alumina bricks, where Hubei Zhongnai's comprehensive LZ and SK series provide exceptional performance in demanding high-temperature zones. Our complete LZ-48 to LZ-80 series and SK32-SK40 series meet diverse metallurgical requirements with superior reliability.

  • Blast furnace systems: LZ-75, LZ-80 for hearth and bosh regions, withstanding 1500-1600°C operational temperatures
  • Electric arc furnaces: SK38, SK40 series for roof and sidewalls, service life 8000-15000 heats with consistent performance
  • Hot blast stoves: T39 precision shaped bricks for dome and checker chambers with superior thermal cycling
  • Ladle linings: LZ-65, LZ-70 reduce steel temperature drop by 20-30°C improving process efficiency
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Hot Blast Furnace & Coke Oven Systems

Specialized silica brick applications in steel metallurgy, featuring Asia's longest 260-meter production line. Hubei Zhongnai's RG-95 and JG-94 series provide exceptional performance for continuous high-temperature operations with superior load-bearing capacity.

  • Hot blast furnaces: RG-95 silica bricks, service temperature 1200-1350°C, exceptionally low creep rate
  • Coke oven systems: JG-94 with superior CO corrosion resistance and thermal cycle stability
  • Load softening temperature: ≥1650-1670°C under 0.2MPa pressure for extended operational life
  • Extended campaign life: Continuous service for one or even two complete blast furnace campaigns
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Cement Kiln Transition Zones - Advanced Silica Fume Technology

Premium silica fume refractory bricks specifically engineered for cement kiln transition zones, decomposition furnaces, and cooling systems. Hubei Zhongnai's advanced silica fume bricks provide superior thermal shock resistance and anti-spalling performance in extreme industrial conditions.

  • Transition zones: Superior thermal shock stability withstanding rapid temperature fluctuations and thermal cycling
  • Decomposition furnaces: Excellent alkali resistance and protective layer formation preventing material degradation
  • Cooling systems: Outstanding abrasion resistance in severe thermal cycling conditions with extended service life
  • Anti-ring formation: Significantly reduces ring formation in rotary kilns improving operational efficiency
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Cement & Building Materials - Comprehensive High-Alumina Solutions

High-alumina bricks play crucial roles in cement production with T39 precision shaped bricks for rotary kilns and various LZ series for different temperature zones. Hubei Zhongnai provides complete solutions from LZ-48 to LZ-80 grades with exceptional performance characteristics.

  • Cement rotary kilns: LZ-70, LZ-75 for burning zones, withstanding 2000°C flame temperature with superior durability
  • T39 shaped bricks: Perfect dimensional accuracy for circular and arch structures in kilns with precise fitting
  • Preheater systems: LZ-55, LZ-60 for 850-880°C process temperature with consistent thermal performance
  • Glass melting furnaces: LZ-80 high-alumina bricks for crown and wall applications with extended service life
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Non-ferrous Metal Smelting - Premium High-Alumina Excellence

Stringent technical requirements demand advanced high-alumina shaped bricks and corundum bricks with simultaneous high-temperature resistance, corrosion resistance, and thermal shock resistance. Our SK series and custom shaped bricks excel in these demanding applications.

  • Copper smelting furnaces: SK36, SK38 bricks, operating temperature 1450-1500°C with superior corrosion resistance
  • Aluminium electrolytic cells: High-alumina shaped bricks, service life 8-10 years with consistent performance
  • Custom shaped bricks: T39 and special configurations for complex geometries with precision manufacturing
  • Corundum bricks: Al₂O₃>90% for extreme conditions requiring maximum performance and durability
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Petrochemical Industry Applications

One of the most technology-intensive application fields for refractory materials, accounting for 8-12% of total industrial refractory material consumption. Complex processes and harsh conditions require extremely strict technical requirements for advanced materials and exceptional performance characteristics.

  • Fluid catalytic cracking units: Reactor and regenerator operating temperature 450-510°C with superior performance
  • CH-166 advanced castable: Excellent thermal shock resistance and low thermal conductivity for critical applications
  • Hydrogenation units: High pressure (3-20MPa), medium-high temperature (300-450°C) with exceptional durability
  • Reforming units: Operating temperature 450-520°C, compatible with platinum-rhenium catalysts
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Electric Power Industry Applications

Accounts for approximately 3-4% of total demand with steady growth driven by clean energy development and traditional thermal power technology upgrades. Premium silica bricks and advanced castables provide reliable solutions for power generation equipment applications.

  • Boiler systems: Furnace water-cooled walls lined with 50-100mm refractory lining for optimal heat management
  • CH-168 advanced products: Effectively reduce energy loss, improve power generation efficiency by 15-20%
  • Coal-fired boilers: GZ-94 silica bricks for furnace crowns and heating surfaces with extended service life
  • Biomass power generation: Requires strict alkali corrosion resistance with specialized material compositions
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Glass Industry Applications

Comprehensive silica brick solutions for glass furnaces, with three specialized grades (BG-96a, BG-96b, BG-95) meeting different quality requirements. Ultra-low iron content ensures minimal glass coloring and superior optical quality in finished products.

  • Premium glass furnaces: BG-96a with Fe₂O₃≤0.8%, service temperature up to 1600°C for high-end applications
  • Standard glass furnaces: BG-96b balanced performance, Fe₂O₃≤1.0% for general glass manufacturing
  • Economic applications: BG-95 cost-effective solution, Fe₂O₃≤1.2% for standard glass production
  • Application components: Furnace crowns, walls, regenerative chambers with exceptional thermal performance

Core Product Series

Independently developed microporous lightweight mullite series, professional silica brick products, advanced silica fume brick technology, comprehensive high-alumina brick solutions, revolutionary sintered zirconium corundum brick technology, and ultra-high performance castable materials with leading performance and exceptional reliability

AZS-41 Premium Revolutionary Sintered Zirconium Corundum Bricks

≥41% ZrO₂ Premium Grade
ZrO₂ Content ≥41%
Glass Phase <5%
Bulk Density 3.6-3.9 g/cm³
Applications Electric Furnaces, Critical Zones

Revolutionary carbon-free production technology with uniform microstructure and superior thermal shock resistance for premium glass manufacturing applications requiring maximum performance and reliability.

CH-zlj80 Ultra-High Performance Self-Flowing Alumina Castable

1790°C Service Temperature
Al₂O₃ Content ≥80%
Self-Flow Value ≥200mm
Compressive Strength 85 MPa
Application Blast Furnace Iron Runners

Revolutionary self-flowing technology eliminates vibration requirements while achieving superior slag penetration resistance and exceptional thermal shock stability for complex geometries and demanding applications.

LZ-80 Premium High-Alumina Bricks

1750-1790°C Service Range
Al₂O₃ Content ≥80%
Cold Crushing Strength ≥70MPa
Refractoriness Under Load ≥1530°C (0.2MPa)
Applications Blast Furnaces, EAF Roofs

Premium grade high-alumina bricks for the most demanding high-temperature applications in steel industry with exceptional performance and extended service life characteristics.

BG-96a Premium Glass Furnace Silica Bricks

1550-1600°C Service Temperature
SiO₂ Content ≥96%
Fe₂O₃ Content ≤0.8%
Load Softening Temperature ≥1680°C (0.2MPa)
Applications Premium Glass Furnaces

Ultra-low iron content for minimal glass coloring, specifically designed for high-end glass manufacturing applications requiring superior optical quality and performance.

Premium High-Alumina Silicon Carbide Silica Fume Refractory Bricks

1790°C Refractoriness
Al₂O₃ Content ≥63%
SiO₂+SiC Content ≥35%
Cold Crushing Strength ≥85 MPa
Thermal Shock Resistance ≥10 cycles (1100°C)

Superior thermal shock resistance and anti-spalling performance specifically engineered for cement kiln transition zones and high-temperature industrial applications requiring maximum durability.

CH-168 Microporous Aggregate Lightweight Mullite Homogenizing Material

Bulk Density 1.3-1.8 g/cm³
Thermal Conductivity 0.8 W/m·K (1000℃)
Service Temperature ≤1600℃
Micropore Diameter Nanometer Level

Advanced composite pore-forming agent technology, reducing steel temperature drop by 20-30°C in ladle insulation applications with superior thermal management capabilities.

Production Capabilities - Hubei Zhongnai New Material Technology Co., Ltd.

Advanced manufacturing capabilities featuring 800 sets of main equipment for production, experimentation and testing, including various high-capacity presses (400T-1000T), electronic batching systems and advanced testing equipment. Our two 192-meter-long high-temperature tunnel kilns produce superior quality high-alumina bricks (LZ series), precision shaped bricks (T39, SK series), silica bricks, advanced silica fume bricks, revolutionary sintered AZS bricks, and mullite materials with stable indicators, uniform composition, and exceptional performance characteristics.

🔬 Revolutionary AZS Technology

AZS-16 to AZS-41
Carbon-free sintered zirconium corundum brick manufacturing

🏭 High-Alumina Brick Production

LZ & SK Series
Complete range from LZ-48 to LZ-80, SK32-SK40

🧱 Asia's Longest Silica Brick Line

260 Metres
Advanced production technology leadership

🧱 Advanced Silica Fume Technology

Premium Performance
Transition zone & anti-spalling expertise

⚙️ Precision Shaped Brick Manufacturing

±1.5mm Tolerance
T39 and custom shaped brick precision

🏗️ Advanced Castable Series

CH Series Excellence
Self-flowing, lightweight, corundum technology

Providing superior quality refractory raw materials and finished products including revolutionary sintered AZS bricks, advanced silica fume bricks for cement kiln applications, primarily serving coking, metallurgy, non-ferrous, glass, cement, and other refractory material manufacturers across various industries with cutting-edge technology solutions and exceptional performance standards.

Professional Contact Information

🏢 Hubei Zhongnai New Material Technology Co., Ltd.
📞 +86 19171489999
🌐 https://en.hbznxc.com