Preparation and Curing of Phosphate Refractory Castables During On-Site Construction

With the development of refractory material research and development technology, various new types of refractory castables have been widely used in industrial furnaces, such as refractory clay castables and low-cement castables. These materials extend the service life of various industrial Read More …

Design of the Checker Brick Structure for the Regenerator of a Glass Melting Furnace

The grid design is a crucial aspect of the overall glass melting furnace design. A well-designed grid can significantly increase the preheating temperature of the combustion air, resulting in higher combustion temperatures for the fuel and thus contributing to combustion Read More …

The Importance of Intermittent Strength of Refractory Castables

The intermediate-temperature strength of refractory castables refers to the strength at approximately 800℃-1000℃. For most castable series, the intermediate-temperature strength at 800℃ is the most problematic, as this is when the bond strength of the refractory castable is weakest. The Read More …

Preparation Method of Acid-Resistant Refractory Castable

The general composition of acid-resistant refractory castables is as follows: 60%-70% acid-resistant refractory aggregate, 30%-40% powder, and 13%-16% water glass solution with a density of 1.38-1.42 g/cm3. When sodium fluorosilicate is used as a hardening accelerator, its addition amount is Read More …

Requirements for High-Chromium Bricks in Coal-Water Slurry Gasification Furnaces

To address the problems of low coal utilization and severe environmental pollution, pressurized coal-water slurry gasification, as a crucial technology for the clean and efficient utilization of coal, has experienced rapid development. Hundreds of units, including the Texaco coal-water slurry Read More …

Magnesia-Iron-Alumina Composite Spinel Bricks — Chrome-Free Refractories for Cement Kiln Burning Zones

Pollution within the cement industry caused by refractory materials is primarily attributed to chromium-bearing refractories. The main pathways for this contamination are twofold: First, during the calcination of cement clinker, the presence of an oxidizing atmosphere and alkaline oxides—combined with Read More …

Advantages of the Physicochemical Properties of Thermal-Insulating Silicon-Corundum Bricks

Silicon-corundum bricks are developed based on the phosphate-bonded brick series; they are manufactured by utilizing higher-quality bauxite with an increased alumina content, incorporating a specific proportion of silicon carbide, and undergoing processes of batch aging, high-pressure molding, and sintering at Read More …

The Influence and Role of Andalusite in Cement Kiln Mouth Refractory Spraying Mixes

At the front kiln mouth of a rotary kiln, the temperature of the discharged clinker reaches approximately 1100°C, while the temperature of the tertiary air entering the kiln fluctuates frequently in response to changing kiln conditions. As the scale of Read More …