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Shijiazhuang Hongtao Technology Co., Ltd. develops advanced microwave sintering rotary kiln furnaces specifically designed for industrial waste salt treatment, enabling energy-efficient, low-emission thermal decomposition of hazardous salt waste with up to 60% energy savings versus conventional rotary kilns, supporting compliant disposal and resource recovery.
Product details
Shijiazhuang, Hebei Province — May 31, 2026 — Shijiazhuang Hongtao Technology Co., Ltd. has launched its latest innovation in hazardous waste management: a microwave sintering rotary kiln furnace engineered specifically for industrial waste salt treatment.
Industrial waste salt — a byproduct of chemical, pharmaceutical, and dye manufacturing — is classified as hazardous waste in China. Traditional disposal methods, including conventional rotary kilns and landfilling, suffer from high energy consumption, uneven heating, and secondary pollution risks. Hongtao Technology's microwave-powered solution directly addresses these limitations.
The system combines microwave volumetric heating with rotary kiln mechanical agitation, achieving uniform temperature distribution throughout the waste salt bed. This eliminates cold spots common in conventional thermal processing, ensuring complete decomposition of organic contaminants and stable vitrification of inorganic residues.
Key performance advantages include:
| Parameter | Conventional Kiln | Hongtao Microwave Kiln |
|---|---|---|
| Energy Consumption | Baseline | ↓ Up to 60% |
| Processing Time | 2–4 hours | ↓ 40–60% |
| Heating Uniformity | Surface-dominant | Volumetric, core-to-surface |
| Emission Control | Requires after-treatment | Significantly reduced |
The equipment operates continuously with adjustable microwave power (10kW–200kW scalable), accommodating waste salt volumes from pilot-scale testing to full industrial throughput. It meets China's tightening standards under the Solid Waste Pollution Prevention Law and aligns with national dual carbon objectives.
Founded in 2010 and based in Zhengding County, Shijiazhuang, Hongtao Technology has built over a decade of expertise in microwave energy applications across food, ceramics, pharmaceuticals, and new energy sectors. Its R&D partnerships with universities ensure continuous innovation in microwave-assisted thermal processing.
The company exports to South Korea, Japan, Singapore, and Kazakhstan, proving that Chinese-engineered green technology competes globally.
