Lightweight insulation castables are composed of high-quality, high-strength raw materials, aggregates and ultra-fine powders, and compound additives. Because the light-weight insulation castable is a powdery and granular refractory material made of certain refractory materials such as alumina and some binders. It has high fluidity and is mainly formed by pouring in construction. Lightweight insulating castables have the advantages of high strength, small volume density, low thermal conductivity, good insulation performance, and convenient construction. It is an ideal choice for industrial boiler insulation materials.
Lightweight Insulation Refractory Castable
Construction method: vibration or manual ramming construction.
Main function: Insulation and heat insulation to reduce the external temperature of the furnace wall.
Q: How to mix light-weight insulation castable?
A: The mixing of castables requires the use of forced mixers and special mixers.
Advantages of Lightweight Insulating Castable
The light-weight castable insulation is made of aluminate cement, high-alumina fine material, ceramsite, plus several additives. It has the advantages of high refractoriness, high strength, and low thermal conductivity. The heat preservation casting material of the invention has the characteristics of low thermal conductivity and small volume density, which can reduce the heat and heat energy consumption of industrial kilns and reduce the weight of the furnace lining. In the high-temperature light-weight insulating castable, the raw material of the high-temperature light-weight castable that can be used above 1200°C is a porous material. Mullite, corundum, high aluminum, siliceous and magnesia and other porous clinker or light refractory brick. This castable can be directly used in the lining of 1350℃ atmosphere furnace.
Lightweight thermal insulation castable has the following advantages:
- The high-temperature resistance and high strength.
- Low thermal conductivity.
- The small volume density, reduce kiln heat consumption.
- Convenient construction and reduce labor intensity.
- Light texture, reduce the weight of kiln lining.
- resistant to acid and acid gas corrosion.
- Characteristics of heat insulation, heat preservation, and low water absorption.
In addition, the lightweight insulating refractory castable is not only easy to construct but also the most ideal product for construction with alkali-resistant parts at high temperatures. Moreover, the workability is good, the bonding force is strong, and the initial setting time and the construction operable time are long. The strength increases quickly, the impermeability is strong, no acidification treatment is needed, and it is easy to ensure the denseness and fullness of the masonry gray joints. Can significantly improve the airtightness, integrity, and anti-corrosion ability of the chimney lining wall. It is an ideal cementing material for a high chimney, high-temperature flue, and air duct lining.
The Use of Light-weight Insulation Castable
It is suitable for unshaped refractory materials formed by pouring. It is easy to ensure the denseness and fullness of the masonry gray joints, which can significantly improve the airtightness, integrity, and corrosion resistance of the chimney lining wall. It is suitable for a high chimney, high-temperature flue, and air duct lining. Lightweight insulating castables are mainly used for lining thermal insulation devices such as high-temperature industrial kiln insulation. It can also be used in acid-resistant projects such as acid-resistant tanks and tanks in petroleum, chemical, nonferrous metallurgy, and other industries.
Lightweight Insulating Castables Manufacturer
Rongsheng refractory castable manufacturer has an annual output of 80,000 tons’ production workshop. As a manufacturer of high-quality refractory castables, the light-weight heat-insulating castables produced have the advantages of moderate strength and good insulation performance. Lightweight insulating castable is made of aluminate cement, high-alumina fine material, ceramsite, and some additives. Lightweight insulating castables have the characteristics of lightweight, high compressive strength, acid and acid gas corrosion resistance, heat insulation, heat preservation, and low count rate. In addition, Rongsheng’s acid-resistant bricks, acid-resistant clay and wipe fabrics, acid-resistant bricks, acid-resistant clay, and wipe fabrics are self-developed refractory materials suitable for thermal insulation of power plant boiler chimneys and heating network pipes. They have the characteristics of acid corrosion resistance, temperature resistance, heat resistance stability, and convenient construction.
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