Ladle Refractory Brick for Oxygen-enriched Steel Converter
With the development of steelmaking process technology, oxygen-enriched steel converter has been widely used in the steel industry. Oxygen-enriched steel converter generates high content of silica and aluminum in its slag, so its ladle refractory brick needs high alkalinity in order to resist the slag corrosion.
Ladle refractory bricks can have a variety of compositions and different shapes. The majority of these bricks are composed of a combination of alumina, magnesia and chromium oxide. They are also manufactured in different sizes and shapes in order to suit the particular needs of each steelmaking facility. Depending on the type of steelmaking process and the operating environment, they are usually manufactured with various alkali resistances.
In order to resist slag corrosion and provide sufficient mechanical strength, it is essential to select refractory bricks of adequate size and shape for the oxygen-enriched steel converter. The oxygen enriched steel ladle refractory bricks mainly consist of basic bricks, high-alumina bricks, High-chromic-oxide bricks, composite bricks, adsorbent bricks and wear-resistant bricks. The basic bricks should be selected according to the content of sulfur, phosphorus and silicon in the molten steel. High-alumina and high-chromic oxides bricks are mainly used for protection and mortar application. Composite bricks and adsorbent bricks should be selected depending on their alkali-resistance, alkali-absorbency, and wear resistance properties.
In order to ensure the refractories perform properly, it is necessary to use a special mortar between the refractory brick units when installing them. Specialized ladle refractory mortars have good adhesion and excellent sealing ability, which is suitable for use in a variety of refractory systems. The mortar should suit the refractory brick materials ability to resist slag corrosion, alkalis and high temperatures.
Aside from the manufacturing of the refractory materials, proper purchasing and installation techniques should also be followed in order to ensure an optimally functioning furnace. A thorough visual inspection of the steelmaking ladle should be undertaken prior to installation of the refractory materials. All irregularities and defects should be removed or filled in, and all joints should be securely packed with mortar before and after installation.
As a major refractory supplier, Yuxin not only provides high quality refractory products, but also offers professional technical services to help customers select suitable refractory products and design the most reliable refractory application plans. The company provides various refractory bricks sizes, shapes and mixtures to suit all types of steelmaking operations. All of their materials are certified to meet international quality standards and have long-lasting performance. With their quality products and services, Yuxin helps customers reduce cost and maximize the safety and service life of oxygen-enriched steel converters.
In conclusion, with the development of steelmaking process technology and the application of oxygen-enriched steel converters, the ladle refractory material needed is more strictly required to meet the needs of each steelmaking facility with its features of strong alkali. Many companies provide refractory materials with different sizes, shapes and mixtures to choose from. It is important to select the appropriate shape and size, combined with a high-quality refractory mortar, to ensure an optimal refractory application plan that meets the customers needs.
