Product Description of High Refractoriness Mullite Ceiling Bricks For Industrial Kilns

Mullite ceiling bricks are primarily made from mullite material, which is why they are often referred to as mullite-based ceiling bricks. The composition of mullite ceiling bricks is similar to that of mullite lightweight bricks, with an alumina content typically ranging from 65% to 75%. In addition to mullite, the mineral composition may include a small amount of glass phase and quartz in bricks with lower alumina content, and a small amount of corundum in bricks with higher alumina content.

Characteristics of High Refractoriness Mullite Ceiling Bricks:

1. Low Thermal Conductivity: Excellent thermal insulation and heat retention.

2. Low Heat Capacity: The ZM series insulating bricks accumulate very little heat, offering significant energy savings during intermittent operations.

3. Low Impurity Content: Very low levels of oxides such as iron and alkali metals, ensuring high refractoriness. The higher alumina content allows the bricks to maintain good performance even in reducing atmospheres.

4. High Thermal Compressive Strength.

5. Dimension Accuracy: Accelerates bricklaying speed, reduces the amount of refractory mortar needed, and ensures strong and stable masonry.

Performance Specifications:

• Refractory Temperature: 1350-1550°C
• Bulk Density: 800-1000 kg/m³
• Thermal Conductivity (at 800°C): 0.35 W/n·K
• Strength: 4-5 MPa
• Packaging: Palletized
• Product Category: Mullite Products
• Specifications: 23023065 mm; 25023097 mm

Although the national standard specifications for ceiling bricks are limited to these two sizes, due to the varying scales of different industrial kilns, we often focus on custom orders in our production, manufacturing specific models of ceiling bricks based on the unique requirements of our customers.

Applications of Ceiling Bricks:
Used in various industrial kilns, such as dome furnaces, heating furnaces, cracking furnaces, heat treatment furnaces, shuttle kilns, tunnel kilns, roller kilns, enameling kilns, ceramic kilns, for ceiling and wall linings, as well as heat-insulating linings.

Henan Rongsheng Xinwei New Materials Research Institute Co., Ltd., headquartered in Zhengzhou City, Henan Province, is affiliated to Henan Rongsheng Technology Group. It is a national high-tech enterprise integrating R&D, production and technical services of high-performance refractory new materials. We focus on the continuous innovation of high-performance new refractory materials, and are committed to providing advanced technology, high-efficiency, energy-saving, safe and environmentally friendly high-performance new refractory materials and system solutions for the global high-temperature industry.

The main products include melting and casting materials, sintering materials, thermal insulation materials, metallurgical auxiliary materials, refractory raw materials, amorphous materials and graphite products, etc., which are widely used in electric power, metallurgy, non-ferrous metals, petrochemicals, building materials and other fields, and are exported to Europe, America, Oceania , Southeast Asia, the Middle East and more than 80 countries and regions in the world.

Rongsheng Xinwei adheres to the development concept of independent research development and technological innovation. After over ten years of technology accumulation and data precipitation, it has built a scientific research platform with strong research and development innovation capabilities. There are two municipal engineering technology research centers, Zhengzhou High-temperature Refractory Engineering Technology Research Center and Zhengzhou CFB Boiler Refractory Engineering Technology Research Center.

At present, there are more than 50 professional and technical personnel, and over 20 people with intermediate and senior professional titles. They carry out production, learning and research cooperation with Zhengzhou University High-temperature Materials Research Institute, Henan University of Science and Technology High-temperature Materials Research Institute and other institutions of higher learning and scientific research institutes, and organize the implementation every year. More than 20 scientific research and development projects such as new product development, process technology research, energy saving and consumption reduction have achieved dozens of scientific and technological achievements with independent intellectual property rights and core technologies.

Facing the future, Rongsheng Xinwei will be supported by science and technology, take high-efficiency, energy-saving, green and environment-friendly new refractory materials as the research direction, and aim to solve the technical problems in the field of new refractory materials. The high-quality development system of high efficiency, energy saving and emission reduction, and green environmental protection is committed to becoming the world's leading high-performance new refractory material solution service provider!