The 310S rotary kiln achieves dynamic heating of materials through the rotation of its cylinder. Its core design includes:
Furnace tube structure:
Material: 310S seamless steel pipe or welded pipe is used, with the wall thickness customized according to temperature and pressure requirements (usually 3-10mm).
Dimensions: Diameter range from 200-800mm, length up to 15m, supporting spiral feeding or inclined discharge design.
Rotating mechanism: The cylinder is driven to rotate by a variable frequency motor (adjustable from 0 to 5 rpm), with the support of supporting rollers and gear transmission, ensuring stable operation.
heating system
Resistance heating: Utilizing high-temperature alloy resistance wires (containing molybdenum) or silicon carbide rods, the surface temperature can reach up to 1400℃, evenly distributed around the furnace tube.
Electromagnetic heating: Some high-end equipment adopts electromagnetic induction heating, which increases thermal efficiency by more than 35% and controls the temperature difference within ±2℃.
Atmosphere control:
Sealing structure: Both ends of the furnace tube are sealed using flexible graphite seals or metal flange seals, allowing the input of protective gases such as nitrogen and hydrogen. The oxygen content can be controlled to be ≤10ppm.
Exhaust gas treatment: Equipped with a cyclone dust collector or bag filter to reduce dust emissions and meet environmental protection requirements.