Traditional Lance Pipes, while widely used in silicon smelting, often fall short in the face of extreme temperature operating conditions. The relentless exposure to high temperatures, corrosive slags, and high-velocity oxygen streams can lead to rapid deterioration, frequent replacements, and compromised production efficiency. In this article, we will introduce Daiwa Aluminum Lance Pipes, which are reinforced with an external Ceramic Coating to enhance heat resistance, durability, and lifespan when used in silicon smelters.
Lance Pipe Challenges in Silicon Smelting Furnace
Traditional Lance Pipes made primarily of aluminum are versatile tools in silicon smelting furnaces, used for tasks like gas blowing, furnace cleaning, and tapping to increase the aluminum content in silicon while reducing the amount of iron entering it. However, those lance pipes often face several challenges, such as:
- Rapid consumption: Exposure to extreme temperatures, corrosive slags, and high-velocity oxygen streams causes these pipes to bend, erode, and eventually fail, leading to frequent replacements, production disruptions, and increased costs.
- Decreased efficiency: The degradation of lance pipes compromises the oxygen blowing process, resulting in lower productivity and inferior product quality.
- Safety hazards: The frequent need to replace worn-out pipes poses significant safety risks to workers.
The Solution: Ceramic-Coated Aluminum Lance Pipes in Silicon Production
To overcome these limitations, we introduce Ceramic-Coated Aluminum Lance Pipes with exceptional durability and resistance to high temperatures and harsh environments found in Electric Arc Furnaces.
Aluminum Benefits
Originally the primary purpose of using Aluminum Lance Pipes in smelting furnaces is to adjust the chemical composition of molten metal, particularly during the silicon refining process. Specific purposes include:
- Reducing iron contamination: By employing Aluminum Lance Pipes to inject oxygen into the furnace, the risk of iron contamination from the pipes themselves is significantly reduced. This prevents reactions with iron oxides, minimizing the formation of insoluble compounds that can compromise the purity of the molten silicon.
- Increasing aluminum content: The aluminum content in the Aluminum Lance Pipe acts as a catalyst, interacting with components in the molten silicon and indirectly increasing the aluminum content. This process helps fine-tune the final silicon product without significantly altering the overall chemical composition of the silicon metal.
Ceramic Coating Benefits
Most importantly, the significance of applying a thick layer of Ceramic Coating onto the outer surface of the Aluminum Lance Pipe is to:
- Enhance heat resistance: A melting point over 2,000°C for a ceramic coating signifies its exceptional thermal resistance and durability. This means the coating can withstand extremely high temperatures without melting or degrading.
- Extended lifespan: The ceramic layer acts as a protective barrier against oxidation and slag erosion, prolonging the pipe's service life.
- Improved mechanical properties: The ceramic coating improves the pipe's stiffness and resistance to bending, ensuring consistent oxygen flow and optimal process control.
Technical Specifications of Ceramic-Coated Aluminum Lance Pipes
Here's a quick overview of the technical specifications, including structure and size, of Ceramic-Coated Aluminum Lance Pipes for silicon smelting furnaces.
Structure of Ceramic-Coated Aluminum Lance Pipes
Ceramic-Coated Aluminum Lance Pipe features a distinct structure compared to a standard Aluminum Lance Pipe due to the inclusion of a ceramic coating on its exterior. The thickness of Ceramic Coating is adjustable to meet various application needs.
To facilitate connections, the pipe's upper end is threaded for a socket screw, allowing for the attachment of an extension pipe as necessary.
Size of Ceramic-Coated Aluminum Lance Pipes
Ceramic-Coated Aluminum Lance Pipe comes in two primary sizes: an OD of 17.0 mm with a 3.0 mm thickness and an OD of 21.0 mm with a 4.0 mm thickness, both measuring 5.5 meters in length. In addition to our standard offerings, custom sizes are also available. For further inquiries or advice, please refer to our website at this link.
Conclusion
Producing silicon in smelting furnaces is a tough and hazardous process that requires significant labor and production resources. Therefore, investing in high-quality and efficient Ceramic-Coated Aluminum Lance Pipes is essential. To optimize your silicon smelting operations, just consider buying our durable Ceramic-Coated Aluminum Lance Pipes. Order yours today and take advantage of our bulk purchase discounts!
