Refractory gunning machine for repairing the furnace lining of AOD furnace
A refractory gunning machine for repairing the furnace lining of an AOD (Argon Oxygen Decarburization) furnace is a specialized piece of equipment designed to apply refractory materials to the inner walls and components of the AOD furnace for maintenance and repair purposes. These machines are crucial for ensuring the longevity and efficient operation of AOD furnaces, which are widely used in stainless steel production.
Refractory gunning machine manufactured by Lead Equipment, this machine is designed for both refractory and concrete shotcrete applications. It features variable output, a dust collection system, and heavy-duty solid wheels for mobility, making it suitable for AOD furnace lining repairs.
Key features of refractory gunning machines for AOD furnaces:
High-Pressure Conveying System:
The machine utilizes high-pressure air to convey dry or semi-dry refractory materials through hoses to a nozzle, where they are sprayed onto the furnace surface. This ensures efficient and uniform application of the refractory material.
Variable Output and Control:
Modern refractory gunning machines are equipped with variable-frequency drives and adjustable controls, allowing operators to regulate the output rate and spray pattern according to the specific repair requirements of the AOD furnace.
Dust Collection and Safety:
To minimize dust emissions and ensure a safe working environment, these machines are often fitted with dust collection systems and safety features such as emergency stop buttons and protective guards.
Mobility and Flexibility:
Many refractory gunning machines are designed to be mobile, allowing them to be easily transported to different locations within a plant or even between sites. This flexibility is essential for addressing repairs in various parts of the AOD furnace.
Robust Construction:
Given the harsh operating conditions in AOD furnaces, these machines are built with durable materials and components capable of withstanding high temperatures, abrasive materials, and heavy use.

Applications in AOD Furnace Lining Repair
1. Repairing Damaged Areas:
Refractory gunning machines are used to repair damaged or eroded areas of the AOD furnace lining, such as the sidewalls, bottom, and roof. This helps to prevent further deterioration and ensures the furnace operates efficiently.
2. Applying New Refractory Layers:
In cases where the existing refractory lining is worn out or needs to be replaced, these machines can apply new layers of refractory material, ensuring the furnace is properly insulated and protected from high temperatures.
3. Maintaining Furnace Integrity:
Regular use of refractory gunning machines for maintenance helps to maintain the structural integrity of the AOD furnace, reducing the risk of breakdowns and extending the furnace’s lifespan.
