Introduction
Bricks used in blast furnaces and hot blast stoves (HBS) can vary in size, shape, and composition. Depending on the exact application and specific operator requirements for the HBS, bricks are used in a variety of shapes and sizes to achieve maximum thermal efficiency and long-term reliability. This article will provide an overview of the various types of bricks available for use in these application types, as well as their characteristics and properties.
Description
Blast furnaces and HBS require an array of shapes and sizes to ensure the process is successful. The two main shapes are wedge-shaped and cylindrical, with some unique exceptions. Wedge-shaped bricks are often smaller in size and can be produced with a variety of shapes, such as square, rectangles, and triangles. Cylindrical-shaped bricks are much larger than wedge-shaped bricks and are used to line the inside of the furnace or HBS. They are available in a variety of diameters, lengths, and wall thicknesses depending on the application.
Wedge-shaped bricks are the most common brick type used in blast furnaces and HBS. The most popular size being 7” x 3.25” x 1.75” which are used to line the walls and roof of the furnace. Wedge-shaped bricks are designed to fit together in uniform rows or a staggered pattern to minimize heat loss. They are available in several different material types, such as fireclay, refractory cement, and ceramic fiber, and can withstand temperatures up to 2,500 degrees Fahrenheit.
Cylindrical-shaped bricks are larger in size than wedge-shaped bricks, and can range from 4” to 24” in diameter. These bricks are used to line the interior of the furnace or HBS as well as to construct the roof and hearth. The material used for these bricks is largely dependent on the application, with refractory cement and ceramic fiber being the most popular options due to their excellent thermal properties. Cylindrical bricks are also available in a variety of wall thicknesses, allowing them to withstand extreme temperatures and situations.
Conclusion
Blast furnaces and hot blast stoves require the use of different shapes and sizes of bricks to ensure maximum heat efficiency and performance. Wedge-shaped bricks come in a variety of sizes and compositions, while cylindrical-shaped bricks are used to line the interior walls or construct the roof and hearth. Both types of bricks are available in a variety of material types, making them suitable for various applications. Choosing the right type and size of bricks is essential, as they have a direct effect on the overall performance and longevity of the furnace or HBS.
