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)
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.
