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Buy good quality Vermiculite Board for Steel Ladle Insulation to Increase Ladle Refractory Lining Life by 30 to 40% at low price 185 INR/Pc. Vermiculite insulation boards are manufactured from exfoliated vermiculite and inorganic binders, creating a lightweight, rigid material with excellent thermal insulation properties. These boards are non-combustible and can withstand high temperatures, making them ideal for various industrial applications, including steel ladles.


Properties of Vermiculite Insulation Boards

  • High Thermal Insulation:

    • Low thermal conductivity, providing effective insulation at high temperatures.
  • Lightweight:

    • Significantly lighter than traditional refractory materials, reducing the overall weight of insulated structures.
  • High Mechanical Strength:

    • Durable and able to withstand mechanical stress without crumbling or breaking.
  • Chemical Resistance:

    • Resistant to most chemicals, including acids and alkalis.
  • Non-Toxic:

    • Safe to handle and install, free from harmful substances like asbestos.


Applications of Vermiculite Insulation Boards in Steel Ladles

  • Thermal Insulation:

    • Used as an insulating lining in steel ladles to retain heat and maintain the temperature of molten steel during transport and handling.
  • Energy Efficiency:

    • Helps reduce heat loss, improving energy efficiency and reducing the amount of fuel required to keep the steel molten.
  • Safety:

    • Provides a barrier against thermal radiation, protecting workers and equipment from extreme heat.
  • Structural Stability:

    • Enhances the structural integrity of steel ladles by providing a rigid, insulating layer that supports the outer shell.
  • Extended Service Life:

    • Protects the refractory lining from thermal shock and mechanical wear, extending the service life of the ladle.


Applications in Steel Plants

  • Ladle Insulation:

    • Used as a lining in steel ladles to maintain the temperature of molten steel during transport and handling, reducing heat loss and improving energy efficiency.
  • Furnace Insulation:

    • Applied to the walls, roofs, and floors of furnaces to retain heat, enhance energy efficiency, and protect the furnace structure from thermal stress.
  • Tundish Insulation:

    • Used in tundishes to control the temperature of molten steel and prevent heat loss during continuous casting.
  • Duct and Chimney Insulation:

    • Insulates ducts and chimneys to reduce heat loss, prevent condensation, and protect against thermal shock and chemical corrosion.
  • Pipe Insulation:

    • Insulates high-temperature pipelines to minimize heat loss and maintain the efficiency of thermal processes.
  • Heat Shields:

    • Installed as heat shields to protect equipment and structures from high-temperature environments.


Technical Specifications

  • Thermal Conductivity: Typically around 0.048 W/m·K at 20°C.
  • Maximum Service Temperature: Up to 1400°C.
  • Density: Varies based on the grade, typically around 300-500 kg/m³.
  • Compressive Strength: Varies by product, generally high enough to withstand the mechanical stresses in ladle applications.
  • Chemical Composition: Primarily exfoliated vermiculite and inorganic binders.


Installation and Usage

  • Preparation:

    • Clean the surface of the steel ladle to remove any debris, dust, or remnants of previous insulation materials.
  • Cutting:

    • Vermiculite boards can be cut to size using standard tools such as saws or knives. Ensure precise measurements for a snug fit.
  • Fixing:

    • Boards can be installed using refractory adhesives, mechanical fixings, or a combination of both to ensure they remain securely in place.
  • Sealing:

    • Joints between boards should be sealed with a suitable refractory sealant to prevent heat leakage.
  • Inspection:

    • Regular inspection and maintenance are recommended to check for any signs of wear or damage, ensuring optimal performance.

Benefits of Using Vermiculite Insulation Boards for Steel Ladles

  • Enhanced Thermal Efficiency:

    • Reduces heat loss, maintaining the desired temperature of molten steel for longer periods.
  • Cost Savings:

    • Improves energy efficiency, reducing fuel consumption and operational costs.
  • Worker Safety:

    • Minimizes heat radiation, creating a safer working environment.
  • Durability:

    • Resistant to thermal shock and mechanical wear, leading to a longer lifespan for the steel ladle.
  • Eco-Friendly:

    • Non-toxic and free from harmful substances, making it an environmentally friendly choice.


Vermiculite insulation boards are a highly effective solution for insulating steel ladles, offering excellent thermal insulation, fire resistance, and durability. Their use can lead to significant improvements in energy efficiency, operational cost savings, and safety in steel production facilities.

Vermiculite Insulation Board Steel Ladle Tundish

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