Rotary and Tunnel Furnaces
Rotary and tunnel furnaces provide controlled thermal treatment of bulk materials. Rotary kilns handle continuous, high-temperature processes such as calcination, pyrolysis, and thermal desorption, while tunnel kilns move products through different heating zones for uniform firing and sintering. These systems are common in cement, ceramics, refractories, and waste processing, where stable heat profiles and reliable throughput are needed.
Rotary Kilns (Direct- and Indirect-Fired)
Rotary kilns are long, refractory-lined cylindrical drums that rotate slowly while exposing material to high temperatures. In direct-fired kilns, the product comes into contact with combustion gases, making them ideal for calcination, pyroprocessing, and waste incineration. Indirect-fired kilns isolate the feed from gases, ensuring precise temperature control for sensitive or hazardous materials. They are widely used in cement, lime, minerals, and waste-to-energy plants where continuous, reliable thermal processing is required.
Tunnel Kilns (Belt-, Pusher-, Roller Hearth-, Moving Bed Furnaces)
Tunnel kilns are continuous furnaces where products travel in sаggers on belts, rollers, or are pushed by hydraulic pistons on the kiln bottom through controlled heating zones. They provide consistent, uniform heating for ceramics, refractories, glass, and powder metallurgy.. Their advantages include low energy use, repeatable product quality, and adaptability to different firing curves.
Pyrolysis Reactors
A pyrolysis reactor performs the thermal decomposition of organic materials at high temperatures in the absence of oxygen. This process converts feedstock into solid char, liquid oils, and syngas, supporting circular economy initiatives in waste-to-energy, plastics recycling, and biomass valorization. Rotary drum pyrolysis kilns are often used for continuous, large-scale applications, delivering controlled residence times and scalable operation.
