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At present, high-alumina bricks and low-cement castables are mostly used for masonry in the furnace roof of aluminum industry kilns. In order to speed up the smelting speed and save energy, light bricks, light refractory castables, and refractory fiber products are generally used as thermal insulation layers. High-alumina bricks for the roof of aluminum industry … Read more
Andalusite refractory bricks are suitable for use as refractory bricks for hot blast stove ceramic burners. By introducing andalusite and silicon micro powder of different grades and contents to improve its chemical mineral composition and improve the purity of raw materials. More importantly, the softening temperature under load, thermal shock resistance, and high temperature creep … Read more
In iron-making enterprises, the ball-type hot blast furnace is blast furnace blast heating equipment. The core of the technical problem of the spherical hot blast stove is the pebble bed. The pebble bed is formed by the natural accumulation of refractory balls of equal diameter. Generally, it is divided into upper and lower sections according … Read more
The continuous development of materials science is mainly affected by two factors, namely the needs of users and the upgrading of technology. Changes in user industrial patterns and user demand for high-quality products have led to major improvements in the use of refractory materials. So, what factors affect the performance of cement-free high-alumina self-flowing castables? … Read more
High Alumina Insulating Refractory Brick mainly refers to refractory products with an alumina content of more than 48%. Because of its advantages such as low volume density, lightweight, and good heat insulation effect, it is also called lightweight high alumina brick or heat insulation high alumina brick. It is a kind of insulating refractory brick … Read more
Phosphate bricks and wear-resistant bricks are both of the phosphate bonded high alumina kiln lining bricks. Phosphate bonded high alumina bricks use phosphoric acid solution or aluminum phosphate solution (aluminum dihydrogen phosphate, PA-80 glue, etc.) as the binder, bauxite clinker as aggregate, and press molding. It is a chemically bonded refractory bricks product made by … Read more
Circulating fluidized bed boiler (CFB), as a major “clean combustion” device, is widely used in new or rebuilt fire (thermal) power plant projects. And it drives the continuous improvement and development of refractory materials for CFB boilers. The CFB boiler has a complex lining structure, and there are a large number of high-concentration, high-speed circulating … Read more
Light-Weight High Alumina Castables mainly use lightweight aggregates and heavy fine powder. Lightweight aggregates used in Light-Weight High Alumina Castable have larger pore diameters and lower strength. Therefore, the thermal conductivity of the lightweight castables is higher. At the same time, the low aggregate strength affects the overall strength of the lightweight castable, limiting its … Read more
What is a high alumina brick? What is high aluminum castable? High alumina castable is a refractory castable made of high-alumina cement clinker as a stone and granular materials, adding flux and thickener. The raw material of the integral lining can be poured immediately, or it can be poured into the fireproof preform for application. … Read more
Andalusite bricks, with corundum, andalusite as the main raw materials, and strictly control the particle size of the raw materials. Adopt new production processes: multi-stage batching, matrix homogenization, and determination of better calcination temperature and other process measures. The andalusite refractory bricks with excellent performance can fully meet the different parts of the blast furnace, … Read more
