Materials and Structure
► Structural Design: The tubular water-cooled furnace cover is typically composed of a metal shell and internal water-cooling pipes. The metal shell is usually made of high-temperature and corrosion-resistant steel, providing overall structural support and protection for the furnace cover. The water-cooling pipes are evenly distributed inside the furnace cover, forming a complex and orderly cooling network. These pipes are typically made of materials with excellent thermal conductivity, such as copper or stainless steel, to ensure efficient heat transfer.
► Cooling Principle: During operation, cooling water enters the water-cooling pipes through the inlet and circulates through the piping system. When the furnace cover is exposed to high temperatures inside the furnace, heat is rapidly transferred to the water-cooling pipes and absorbed by the circulating cooling water. Through continuous circulation, the cooling water effectively lowers the temperature of the furnace cover, maintaining it within a relatively low and stable range, thereby ensuring normal operation.
► Connection and Sealing Methods: The tubular water-cooled furnace cover is connected to other components of the submerged arc furnace using reliable methods such as flanges and bolted connections, ensuring secure installation and effective sealing. At the connection points, high-temperature-resistant sealing materials—such as asbestos gaskets and metal spiral-wound gaskets—are typically used to prevent furnace gas leakage. Additionally, the water-cooling pipes are sealed to avoid coolant leakage, ensuring the proper functioning of the cooling system.
Structural Components
► Water-Cooling Pipes: These are the core components of the tubular water-cooled furnace cover. Usually made of seamless steel or copper pipes, their function is to absorb heat from the furnace cover through circulating water, thereby reducing its temperature. The layout and quantity of the pipes vary depending on the size and shape of the furnace cover.
► Furnace Cover Body: This is the main structure of the tubular water-cooled furnace cover. Typically made of steel plates or cast steel, its purpose is to support the water-cooling pipes and withstand the internal pressure of the furnace. The shape and dimensions of the body differ based on furnace type and process requirements.
► Sealing Device: This is a critical component of the tubular water-cooled furnace cover. Its role is to prevent furnace gases and dust from leaking out, thereby protecting the environment and operator safety. The sealing device usually consists of sealing rings, gaskets, and sealants.
► Supporting Device: This is the support structure of the tubular water-cooled furnace cover. Its function is to hold the furnace cover body and water-cooling pipes in place, ensuring stability and safety. The supporting device typically includes brackets, pillars, and a base.
