Wind Permeation Dryer with Rotating Scraping Assembly

The patent applies pneumatic principles by using forced air circulation through the drying chamber. A fan drives air flow through channels that pass over the coal samples, creating efficient convective drying. This pneumatic system replaces natural diffusion-based air drying with forced convection, achieving rapid moisture removal while maintaining sample quality through controlled air flow and temperature below 50°C.

The patent optimizes drying parameters by controlling air temperature to remain below 50°C, preventing overheating and energy waste. The system uses a fan-driven air circulation system that maintains optimal temperature and humidity parameters throughout the drying chamber, ensuring homogeneous drying. This parameter control approach achieves efficient moisture removal without the high energy consumption associated with high-power heating lamps or ovens.

The patent segments the ventilation system into organized air flow channels that distribute air uniformly across multiple drying layers. Instead of a single fan creating chaotic air movement, the system divides air flow into directed paths through the sample stacks, maximizing air exchange efficiency. This segmented approach achieves high air turnover rates while maintaining a relatively simple overall structure with standardized channel designs.

The patent integrates multiple functions into a single drying chamber system: sample placement, air circulation, temperature control, and moisture removal all occur within one unified structure. The standardized stacking design allows the same chamber to handle multiple samples simultaneously, achieving automation in sample processing without requiring complex separate equipment for each function. This multi-functional approach raises automation levels while controlling overall equipment complexity.