Insulation Refractory

GMK23 Brick – Equivalent to Jm23 Insulating Firebrick

Release Time: 2024-10-23
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Introduction:

GMK23 Anorthite Insulating Firebricks are created using an advanced slurry foaming casting process that sets them apart from traditional insulating bricks like JM23. The production process forms anorthite and mullite phases, which enhance both thermal insulation and mechanical strength. This results in ultra-low thermal conductivity, making GMK23 bricks ideal for energy-efficient applications. Additionally, the process eliminates sulfur dioxide (SO₂) emissions, contributing to environmental sustainability. Compared to JM23, GMK23 bricks provide better thermal shock resistance, superior energy savings, and are produced using cutting-edge technology.

GMK23 brick 1

Key Differences:

Thermal Efficiency:

  • GMK23: Enhanced thermal performance with ultra-low thermal conductivity, ideal for high-efficiency insulation.
  • JM23: Lower thermal efficiency compared to GMK23, suitable for standard applications.

Production Method:

  • GMK23: Innovative slurry foaming casting, creating a fine microporous structure that minimizes heat transfer.
  • JM23: Traditional extrusion process, resulting in larger pores and higher heat conductivity.

Strength and Durability:

  • GMK23: Higher mechanical strength at elevated temperatures, making it more resistant to thermal shock and wear.
  • JM23: Adequate strength but less resistant to mechanical stress compared to GMK23.

Environmental Impact:

  • GMK23: Environmentally friendly with zero SO₂ emissions during production.
  • JM23: Standard production process with minimal environmental focus.

GMK23 brick 2

 

Typical Application: 

GMK23 Brick used as hot face refractory lining or back-up insulation in various industries, such as:

  • Chemical & Petrochemical: Kilns, flues, refining vessels, heaters, reactor chambers.
  • Glass: Melters, regenerators, tin baths, distributors, tempering furnaces.
  • Ceramics: Roller kilns, tunnel kilns, shuttle kilns, electricity furnace.
  • Aluminum: Anode baking furnaces, aluminum electrolytic cells.
  • Lithium-ion Battery: Cathode and anode furnaces.
  • Iron & Steel: blast furnaces, hot blast stoves, reheating furnaces, bright metal annealing furnaces.
  • Industrial Furnaces: Electricity furnace, carburizing furnaces, heat treating furnaces, electronic product furnaces, refractory sintering furnaces

GMK23 Brick 3

Technical Comparison:

The image on the right presents a detailed comparison of the pore size distribution between traditional extruded insulating bricks and insulating bricks manufactured using the slurry foaming casting method, as captured under an electron microscope. This side-by-side comparison highlights a significant difference: the pores in the bricks made through the slurry foaming casting method are much smaller and more uniformly distributed compared to those in the extruded insulating bricks. These finer micro-pores play a crucial role in reducing heat transfer by limiting conduction, convection, and radiation. As a result, the bricks produced through slurry foaming casting exhibit considerably lower thermal conductivity. This enhanced insulation efficiency contributes to substantial energy savings in kiln operations, making them a more effective choice for industries focused on reducing energy consumption and improving thermal management.

GMK23 Brick 4

Conclusion:

In conclusion, GMK23 bricks offer significant advantages over JM23 bricks, particularly in thermal efficiency and environmental impact. The advanced slurry foaming casting process used in GMK23 results in a finer microporous structure, leading to lower thermal conductivity and better insulation. This not only improves energy efficiency but also enhances thermal shock resistance and mechanical strength. Additionally, GMK23 bricks produce no SO₂ emissions, making them more eco-friendly. For industries seeking superior performance and sustainability, GMK23 bricks are a more advanced and efficient option than JM23.

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