Microwave Pyrolysis Equipment for TOC Removal from Waste Salt

Waste Salt TOC Removal Microwave Thermal Cracking Equipment, Recognized by China Environmental Protection Industry Association – Zhongsheng Microwave

I. Application Advantages of Microwave Thermal Cracking for Impurity Removal:

Microwave cracking technology operates under oxygen-free or oxygen-deficient conditions, utilizing the selective heating characteristics and catalytic effects of microwaves to enable organic matter with strong microwave absorption to rapidly self-heat and decompose into easily manageable substances such as combustible gas, oil, and carbon black. The treated salt can be recycled after filtration and separation. By removing organic impurities, the waste salt can be filtered and reused, achieving true reduction, harmlessness, and resource recycling.

The impurity removal treatment of waste salt generated in chemical production generally requires drying, impurity removal, purification, and quality improvement before it can be recycled. In a high-temperature microwave thermal atmosphere, organic impurities in substances such as sodium chloride, calcium chloride, and sodium sulfate undergo macromolecular cracking and combustion to achieve impurity removal. This equipment can operate under vacuum, protective atmosphere, or weak reducing atmosphere. Due to the catalytic and non-thermal effects of microwaves, solid-phase diffusion of samples is enhanced, resulting in significantly higher purity and color compared to conventionally dried samples. Experiments show that after granulation, selecting appropriate temperature, material thickness, and holding time can achieve a TOC removal rate of over 97%. In industrial production, TOC levels can be reduced to below 500 ppm, with an electricity consumption of approximately 300 kWh per ton. The treated waste salt can be landfilled as general solid waste or further processed through dissolution, membrane filtration, and recrystallization for resource reuse. The tail gas generated by microwave thermal cracking is about one-fifth of that from conventional processes, and the equipment footprint is about half that of conventional kilns. Microwave thermal cracking for industrial waste salt has been officially recognized by the China Environmental Protection Industry Association, and Zhongsheng Microwave Technology's equipment is an effective and innovative process solution.

II. Application Features of Microwave Equipment:

Microwave Waste Salt Thermal Cracking for TOC Removal Equipment utilizes the material's own absorption of microwave thermal energy. Microwaves are extremely high-frequency electromagnetic waves. In a microwave field, polar and non-polar molecules within the material become polarized, turning into dipole molecules. These dipoles 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, this rotation and vibration occur 2.45 billion times per second, generating a molecular friction-like effect that absorbs energy from the electric field and produces heat, making the material itself the heat source. Thus, microwave heating involves the material heating uniformly from within. In contrast, conventional heating methods such as radiation and convection transfer heat from the outside in, resulting in higher energy consumption, lower efficiency, and longer heating times.

Microwave technology offers energy savings (high thermal conversion efficiency, saving over 30% compared to conventional heating), environmental benefits (no emissions, effectively reducing harmful substances), cleanliness (material self-heats without contact or pollution, improving product quality and yield), and high efficiency (rapid heating, high energy utilization). Zhongsheng's industrial microwave equipment operates at temperatures up to 1600°C with kiln temperature stability of ±5°C. It supports high levels of automation and智能化 operation, effectively improving the production environment.

III. Zhongsheng's Industry Advantages in Microwave Industrial Equipment:

Hunan Zhongsheng Thermal Energy Technology Co., Ltd. was established in 2011 with a registered capital of 12 million RMB. It is a company specializing in the research, development, application, and equipment manufacturing of microwave thermal technology for industrial use. The company designs, manufactures, and sells microwave industrial equipment, primarily producing microwave experimental furnaces for enterprises and research institutions, as well as custom industrial microwave equipment. In the field of microwave applications, Zhongsheng holds 12 invention patents and 57 utility model patents. Its microwave heating kiln technology was included in the fifth batch of key energy-saving technology promotion catalogs by the National Development and Reform Commission. Compared to low-power household microwave ovens, Zhongsheng's industrial microwave equipment is designed for continuous operation, stable production, and durability in industrial settings. It features professionally configured 1.5 kW industrial-grade microwave sources with continuously adjustable power, ensuring uniform, adjustable, and controllable furnace temperatures. The equipment supports 24/7 operation and uses proprietary crack antenna energy feed devices to ensure uniform microwave fields and prevent microwave reflection from damaging magnetrons. Magnetrons can operate continuously for 24 hours, and vulnerable parts can be replaced online without halting production. The equipment also incorporates unique microwave leakage prevention devices, with leakage levels not exceeding 1 mW/cm² (national standard is 5 mW/cm²), significantly enhancing production safety. Other manufacturers typically only meet national standards. Zhongsheng has successful application cases for its microwave drying lines, microwave experimental furnaces, microwave high-temperature bell kilns, microwave high-temperature push plate kilns, microwave high-temperature roller kilns, and microwave cracking kilns.

IV. Services: Technical Exchange / Small-Scale Sampling / Site Visits / Equipment Orders

Microwave Waste Salt Thermal Cracking for TOC Removal Equipment Inquiry:Manager Xu of Zhongsheng:156 7439 3491

Factory Address: Tonghai Road, Economic Development Zone, Yueyang City, Hunan Province