Royal Refractories
Industry applications

Refractory Materials for Industrial Boilers and Thermal Equipment

Boiler and thermal-equipment linings must match the combustion system, fuel, gas velocity, abrasion, cycling, shell design, and the precise hot-face or backup zone. Equipment name alone is not sufficient to select a brick or castable grade.

Common lining requirements

  • Boiler furnace and combustion-chamber linings
  • Abrasion-resistant castables and repair materials
  • Firebrick, mortar, and monolithic lining systems
  • Backup insulation for thermal efficiency

Typical equipment and lining zones

Industrial and packaged boiler furnaces
CFBC and captive-power boiler zones
Combustion chambers, cyclones, ducts, and breeching
Thermic-fluid heaters and waste-heat equipment

Details needed for a technical review

  1. 1Boiler/equipment type, make, capacity, and exact zone
  2. 2Fuel, gas velocity, normal and maximum temperature
  3. 3Abrasion, erosion, cycling, and current failure pattern
  4. 4Existing lining build-up, anchors, and installation method
  5. 5Brick sizes or castable quantity and outage schedule

Relevant product families

Bricks

Dense refractory and high-alumina brick grades for industrial kilns, furnaces, reactors, and other high-temperature lining duties.

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Castables & Mortars

Ceramic and hydraulic-bonded refractory castables, mortars, patching compounds, and heat-resistant grades for industrial lining and repair work.

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Low Cement Castables

Dense low-cement castables engineered for high strength, controlled water demand, and service temperatures from 1500°C to 1700°C.

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Insulating Bricks

Lightweight insulating brick grades designed to reduce heat loss through industrial furnace and kiln shells.

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Insulating Castable

Lightweight insulating castables for backup linings, thermal insulation, and energy-efficient industrial furnace construction.

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Plastic Refractory

Trowel- and ram-applied plastic refractory grades for demanding hot-face lining repairs and maintenance.

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Product suitability depends on the equipment, operating conditions, installation method, and lining design.

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