Principle of Electromagnetic Heating Rotary Pyrolysis Furnace

Building on the foundation of single‑unit rotary furnaces, Jufeng Technology has independently developed a technology that utilizes electromagnetic induction heating. By passing alternating current through coils wound around the exterior of the rotary furnace body, a high‑frequency magnetic field is generated within the induction coils. As the metal furnace body—typically made of heat‑resistant stainless steel, metal, semiconductor materials, or specialized alloys—enters this magnetic field, eddy currents are induced inside the furnace, generating heat through the formation of these swirling currents. This heating method acts directly on the material’s interior, effectively eliminating heat loss associated with conventional heating methods. Its advantages include energy efficiency, environmental friendliness, precise temperature control, and long equipment lifespan.

Advantages of Electromagnetic Heating Rotary Anaerobic Pyrolysis

• The pyrolysis system employs a continuous feed and discharge process and is integrated with a PLC-based automated control system.
• Fully sealed: The furnace is designed for closed-oxygen operation, with all incoming and outgoing materials processed under oxygen‑free conditions. Negative pressure is maintained during material loading and unloading, ensuring zero exhaust gas and dust emissions. Oxygen‑free pyrolysis virtually eliminates the need for nitrogen supplementation.
• Diverse compatibility (capable of performing oxygen‑free pyrolysis on various solid materials containing organic matter or volatile components);
• Low cost and minimal investment for pyrolysis off-gas treatment: Since the cracking process occurs under anaerobic conditions, harmful gases such as dioxins are virtually absent, and the downstream exhaust gas treatment process is simple. After high‑temperature, oxygen‑free filtration of the pyrolysis gas, the off-gas contains almost no particulate matter (significantly reducing both the capital expenditure on off-gas treatment equipment and the associated treatment costs).
• Using electromagnetic induction eddy current heating can reduce energy consumption by 50%–30% compared to traditional resistance heating, significantly cutting down on energy usage.
• Pyrolysis is separated from material cooling, ensuring thorough equipment cooling and stable equipment operation.
• A blade cooling system is employed to ensure thorough cooling of the material.
• By combining ton-bag dust-free feeding stations with negative-pressure dust collection, dust leakage is eliminated.
• The pyrolysis system is equipped with a multi‑layer, quadruple explosion‑proof system (three sets of water‑based explosion‑proof devices and one set of explosion‑proof membranes), eliminating any risk of production explosions.
• The equipment is equipped with two oxygen detection systems, an oxygen content control system, and an automatic nitrogen replenishment system, ensuring that materials undergo pyrolysis under anaerobic conditions to prevent oxidation and thereby achieve a high recovery rate for all valuable components. At the same time, it features two nitrogen inlets, effectively safeguarding production safety.
• The equipment is designed with an integrated production flow, ensuring smooth, concise, compact, and complete workflows.
• The equipment boasts exceptional operational stability, with an electromagnetic eddy current heating lifespan of over 10 years and virtually no maintenance or repairs required.
• High yield and low costs—direct production cost is around 200 yuan per ton.

Device photo