In industrial applications, the choice of refractory materials plays a crucial role in both the performance and cost-efficiency of high-temperature furnaces. One such revolutionary product is HHG-1.35, a high-strength insulating firebrick developed to meet the evolving needs of energy-conscious industries, especially in carbon baking furnaces.

HHG-1.35 is a next-generation insulating firebrick that combines the strength of dense bricks with the insulation properties of lightweight bricks. With a bulk density of 1.35 g/cm³ and a cold crushing strength of 35 MPa, it is designed to provide superior thermal efficiency without compromising structural integrity. It is ideal for high-temperature applications that require reliable mechanical support and excellent insulation.

Carbon baking furnaces, typically used in the carbon industry, require a high volume of insulating bricks for their linings. These furnaces operate in intermittent cycles, unlike continuous furnaces, and often waste a significant amount of energy due to ineffective insulation. As a result, the need for energy-efficient refractories has never been greater.

In traditional systems, dense firebricks offer strength but poor thermal insulation, while lightweight bricks may provide insulation but lack the required durability. This trade-off has long been a challenge, and it's one that HHG-1.35 addresses effectively.

Our recommended solution for carbon baking furnaces involves replacing the conventional low-creep clay bricks with HHG-1.35 high-strength insulating firebricks. Specifically, HHG-1.35 is used in the following layout:

The second and third layers of the furnace base are lined with HHG-1.35 high-strength bricks, offering the ideal balance of insulation and strength.

The lowest three layers are lined with our 0.5 density, high-strength bricks to maintain energy efficiency.

For sidewalls, our 0.4 density large panels are utilized, ensuring excellent insulation properties.

One of the standout benefits of HHG-1.35 is its superior thermal insulation. In a typical carbon baking furnace, the total weight of refractory materials can exceed 5,000 tons. By utilizing HHG-1.35, furnace owners can significantly reduce the overall weight of the furnace lining by over 2,500 tons. This translates to a reduction of approximately 30,000 tons of refractory materials that need to be heated annually.

With an average temperature difference of 700°C across the furnace lining, the energy savings are substantial. Each ton of refractory material requires approximately 25 cubic meters of natural gas to heat it to 700°C. Over the course of a furnace campaign, this can result in savings of up to 7.5 million cubic meters of natural gas. At an estimated cost of 4 CNY per cubic meter, this amounts to a 30 million CNY reduction in fuel costs.

Moreover, the enhanced insulation extends the life of the furnace lining. The insulating layers, which are expected to last at least ten years, contribute to a further reduction in energy consumption by minimizing heat loss.

Apart from significant energy savings, HHG-1.35 offers long-term durability. Its excellent insulation properties reduce heat dissipation and minimize the need for frequent maintenance. With an expected lifespan of up to 10 years, the material's resilience ensures that the furnace will remain highly efficient and reliable throughout its operating life.

The 35 MPa cold crushing strength provides the structural integrity needed in harsh furnace environments.

HHG-1.35’s low thermal conductivity ensures excellent heat retention, drastically reducing energy costs.

With a low permanent linear change and stable performance under thermal cycling, HHG-1.35 stands up to the toughest conditions, offering long-lasting results.

HHG-1.35 is the perfect solution for improving energy efficiency in carbon baking furnaces. By replacing traditional refractory materials with this high-strength insulating firebrick, furnace operators can achieve significant energy savings, lower operating costs, and extend the lifespan of their furnace linings. HHG-1.35 proves that when it comes to refractory materials, ignoring energy efficiency can lead to unnecessary costs—making it an essential investment for any forward-thinking industrial operation.

For more information on how HHG-1.35 can optimize your carbon baking furnace or to request a quote, contact Zhengzhou Firebird New Material Co., Ltd today.