Refractories Used in the Deoxidation and Refining Furnace
Introduction
Refractories are materials that are used to protect furnaces, ovens, and other related equipment from the heat and corrosive substances involved in many types of manufacturing processes. The use of refractories for deoxidation and refining furnace applications is becoming increasingly popular due to their ability to withstand high temperatures, long term durability, and non-reactivity to the elements involved in the process. This article will take a look at the different types of refractories that are used in the deoxidation and refining furnace.
Types of Refractories
Refractories come in many different shapes and sizes. The most common type of refractory for deoxidation and refining furnace applications is the monolithic refractory. This type of refractory is made up of cement and aggregates such as sand, gravel, and/or ceramic fiber. Monolithic refractories are known for their ability to resist thermal shock and retain excellent thermal insulation properties. Monolithic refractories are also known to be strong and abrasion resistant.
Other types of refractories that are commonly used in deoxidation and refining furnace applications include insulating fire bricks, insulating fireclay, and ceramic fiber refractories. Insulating fire bricks are made of large amounts of alumina and silica and are known for their ability to resist high temperatures and thermal shock. Insulating fireclay is composed of kaolinite and alumina and exhibits similar properties to its bricks counterpart. Ceramic fiber refractories are made up of fiber reinforced refractories, which are known for their excellent thermal insulation properties.
Installation
When installing refractories for a deoxidation and refining furnace, it is important to take the time to make sure that the refractory is installed properly. Refractory installation typically involves the use of a mortar or grout. The mortar or grout should be applied in an even thickness over the firebricks or other support base. This ensures that the mortar or grout will adhere evenly and form a solid bond with the refractory.
When installing monolithic refractories, it is important to ensure that the floor has been well prepped with a concrete substrate such as sand and gravel or expanded clay. The substrate should be leveled and compacted before the refractory is set in place. Any cracks in the substrate should be patched prior to application to ensure the strongest bond possible.
Conclusion
The use of refractories in deoxidation and refining furnace applications is becoming increasingly popular. Refractories come in many shapes and sizes, and the most popular choice is typically the monolithic refractory. Insulating fire bricks, insulating fireclay, and ceramic fiber refractories are all types of refractory materials that can be used in a deoxidation and refining furnace. Whichever type of refractory is chosen, it is important to ensure that proper installation techniques are followed to ensure a long-lasting, robust bond between the refractory and the furnace.
