Vertical Microwave Pyrolysis Ashing Apparatus

Microwave Pyrolysis Application Equipment, Vertical Microwave Ashing Device

I. Introduction to Microwave Pyrolysis Principle and Technology:

A. Pyrolysis refers to the thermal degradation of materials under anaerobic or oxygen-deficient conditions. It utilizes thermal energy to break down large molecular organic compounds into smaller, more manageable compounds or combustible gases, oils, carbon black, and other organic substances. This is a complex thermochemical process involving alternating endothermic and exothermic reactions. Pyrolysis requires the absorption of a significant amount of microwave energy to heat the material itself. Once a certain temperature is reached, the material undergoes fission, achieving the goals of harmless treatment and volume reduction, while producing gas, liquid, and solid phases. The gas phase primarily consists of combustible gases, the liquid phase mainly includes pyrolytic water and pyrolytic oil, and the solid phase is primarily carbon residue. The typical pyrolysis process lasts about one hour. Using microwaves for high-temperature deep modification of biomass, the material temperature can reach above 1300°C. The modification reaction can be conducted in atmospheres such as hydrogen, nitrogen, or argon. The main microwave equipment primarily consists of a microwave generator, PLC detection and control system, color touchscreen display system, computer real-time data acquisition and analysis system, pyrolysis reactor, pyrolysis condensation collection system, and protective gas system.

B. If pyrolysis involves the thermal incineration and ashing of materials under aerobic or air conditions, after the endothermic and exothermic self-ignition reactions via microwaves achieve ashing, the volume reduction of organic waste is accomplished. The main products of incineration are carbon dioxide and water, while the generated pyrolysis gases are treated through the condensation collection system and discharged after meeting emission standards. The solid residual ash can be used for landfill or as building cement materials.

II. Application Cases of Microwave Pyrolysis Devices:

The 75 kW waste microwave pyrolysis furnace, jointly developed by the Sichuan University of Science and Engineering's waste microwave pyrolysis and resource utilization research group and Hunan Zhongsheng Thermal Energy Technology Co., Ltd., has passed specialized review and acceptance. The review panel believes that this project has resolved technical challenges such as system sealing during continuous feeding and discharging of solid granular materials, balancing and controlling system micro-positive pressure, and detecting material height within the chamber. It has achieved continuous operation of the entire system and is currently the highest-power microwave pyrolysis furnace in China.

III. Principles and Characteristics of Microwave Pyrolysis Technology:

The microwave pyrolysis device operates by the material itself (in various shapes such as powder, granules, blocks, flakes, or small columns) absorbing microwave thermal energy. Microwaves are extremely high-frequency electromagnetic waves. When an object is in a microwave field, its polar and non-polar molecules become polarized, turning into dipole molecules. These molecules align with the electric field direction. Since the electric field is alternating, the dipoles rotate and vibrate accordingly. For example, at a frequency of 2450 MHz, they rotate and vibrate 2.45 billion times per second, generating an effect similar to molecular friction, thereby absorbing the electric field's energy and heating up. The object itself becomes the heat source. Thus, microwave heating involves the material heating uniformly throughout. In contrast, traditional coal, electricity, oil, or gas kilns are energy-intensive, polluting, and emit exhaust gases. Their heating method is an external conduction process, from the surface inward, requiring prolonged heating times, resulting in low thermal efficiency and a tendency for coking. Regular furnace cleaning, shutdowns for maintenance, and frequent component replacements are necessary.

Microwaves offer energy savings (high efficiency in converting to thermal energy, saving over 30% compared to traditional heating methods), environmental friendliness (no external emissions, effectively reducing harmful substance production), cleanliness (the material itself absorbs microwaves and heats, avoiding contact pollution, improving product quality and yield), and high efficiency (rapid heating, high energy utilization). Additionally, Zhongsheng's industrial microwave equipment can operate at temperatures up to 1600°C, with kiln temperature stability of ±5°C, high automation levels, effectively reducing labor requirements, and improving the production environment.

IV. Introduction to Zhongsheng Industrial Microwave Quality:

Hunan Zhongsheng Thermal Energy Co., Ltd. was established in 2011 with a registered capital of 12 million yuan. It is a company long engaged in the research, development, application, and equipment integration of microwave thermal energy technology in industry, offering design, manufacturing, and sales as an integrated microwave industrial company. It primarily produces microwave multifunctional experimental furnaces for enterprises and research institutions, as well as custom industrial microwave equipment. In the field of microwave applications, it holds 12 invention patents and 57 utility model patents. Its microwave heating kiln technology was selected for the National Development and Reform Commission's fifth batch of energy-saving technology promotion catalogs. Compared to low-power household microwave ovens, Zhongsheng Thermal Energy's industrial microwave equipment meets the demands of continuous operation, stable production, and equipment durability in industrial production. Configured with 1.5 kW industrial-grade microwave sources with continuously adjustable power, it ensures uniform, adjustable, and controllable furnace chamber temperatures. It guarantees 24-hour uninterrupted use. Additionally, it employs self-developed crack antenna energy feed devices to ensure uniform microwave fields and prevent microwave reflection from damaging magnetrons, enabling magnetrons to operate 24 hours without shutdown.易损件 can be replaced online without stopping production. It also uses self-developed microwave leakage prevention devices, with microwave leakage not exceeding 1 mW/cm² (the standard requirement is no more than 5 mW/cm²), significantly enhancing production safety, while other manufacturers typically only meet industry requirements. Zhongsheng's microwave drying equipment, microwave experimental furnaces, microwave high-temperature bell kilns, microwave high-temperature push plate kilns, microwave high-temperature roller kilns, and microwave pyrolysis kilns all have successful application cases.

V. Services: Technical Exchange / Small Sample Testing / Visits / Equipment Orders

Microwave Pyrolysis Ashing Device Inquiry: Manager Xu of Zhongsheng 156add7439 3491
Factory Address: Tonghai Road, Economic Development Zone, Yueyang City, Hunan Province