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Refractory materials for non-ferrous metallurgy

The mechanism of destruction of refractory linings in aluminum furnaces:

  • Growth of corundum
  • Mechanical damages
  • Metal penetration
  • Thermal shock
  • Erosion
  • Chemical exposure

Insulation Fiber Products (Superwool, Cerablanket, Kaowool, Pyrobloc)

Advantages and available forms

  • Protective coatings (features: excellent heat resistance, soft fiber coating, flexible, easy to cut and give any forms, no degassing during firing)
  • Modules
  • Bulk fiber (features: long loose fiber supplied with and without lubrication, means for sealing, does not contain binders or corrosive substances)
  • Papers (features: made from fiber with a low percentage of organic binder, tear resistant, very elastic, exceptional properties for ease of handling)
  • Vacuum molded
  • Low biological stability insulating fibers (biological stability means the ability of fiber to resist removal from the lungs through natural mechanisms, dissolution and destruction)
  • Superwool panels (rigid panel of refractory filler and binder, light weight, excellent resistance to temperature shock, uniform thickness)

Fused Cast Refractories

  • Insulating refractories
  • Dense refractories
  • Special use
  • Low cement, ultra low cement, cement-free refractories
  • Plastic monoliths
  • Microporous insulation BTU-Block (extremely low thermal conductivity, good compressive strength, minimal required area, available in many forms)

Non-wetting refractories for high temperature applications

  • Performance Requirement
  • Rising melting rates
  • Rise in oven temperature
  • Enhanced corundum growth
  • Improved varieties developed with high temperature corundum resistance

Special testing of refractories

  • Slag resistance
  • Resistance to liquid metals
  • Alkali resistance

Composition and raw materials

  • Fillers (calcined clay, lamellar alumina, fused alumina, broken refractory bricks of all types, perlite, expanded clay, vermiculite)
  • Cements (high alumina cement of all types of purity)
  • Modifiers (silica for the formation of mullite, for strength in the intermediate roasting, the addition of clay for additional plasticity, the use of high-grinding alumina gives increased strength and refractoriness)
  • Chemical additives to control the time of hardening, plasticity, rate of increase of strength, fluidity for pumping

Application methods

  • Casting
  • Torkret process
  • Concrete mix rodding
  • Hand stowage
  • Wet gunning

Main applications in the aluminum industry

  • Refractory kilns
  • Anode furnace with carbon anodes
  • Electrolytic crucible cells
  • Melting furnaces
  • Metal transportation

Examples of refractories use in non-ferrous industry

Anode furnace with carbon anodes - areas of application of refractories

  • Orange color (tubular wall) - K® / JM tm insulating refractory bricks, Kaolite® / Firelite® cast refractories, TR-19® Block;
  • Blok 607®, BTU-BLOCK™
  • Brown color – furnace hearth:
  • Red color (chimney distributors) - cast refractories with low cement content;
  • Yellow color (distributor cap) - fiber / cast refractory.

Electrolyzer

  • Red (bottom insulation) — TR-19® / блок Blok 607®
  • Green (upper side wall) — SIC blocks;
  • Yellow (heating cap) — SW Bikt Seal – Kaofil® mastic.
Our specialists are always there to help you

Our engineers will provide advice or additional technical information about the offered oil and gas production and transport equipment

Please send your RFQs for oil and gas production and transport equipment to our Technical Department.

+998 (71) 227 46 44
+998 (71) 227 47 06