Pneumatic Agricultural Material Ejection Without Crushing or Sticking

The patent replaces the mechanical blade ejection system with a pneumatic system. A compressor compresses air, and the compressed air is blown through a nozzle to eject agricultural material. This substitution eliminates direct mechanical contact between high-speed rotating blades and the material, preventing crushing and sticking while maintaining effective ejection force through pneumatic pressure.

The patent employs pneumatic principles by using a compressor to generate compressed air and a blower to deliver it. The compressed air serves as the ejection medium, creating a high-velocity air stream that propels agricultural material without mechanical contact. This pneumatic approach resolves the contradiction by providing sufficient ejection force through gas pressure and flow while eliminating the mechanical crushing and sticking problems associated with blade-based systems.

The patent replaces the rotating blade mechanism with a stationary pneumatic ejection system. The compressor and blower assembly remains stationary while compressed air provides the ejection force. This eliminates the relative motion between rotating blades and the guide structure, preventing agricultural material from becoming stuck in the gap between blade tips and guide inner surfaces, thereby ensuring continuous operation.

The patent introduces compressed air as an intermediary medium between the ejection system and agricultural material. Instead of direct mechanical contact with rotating blades, the compressed air acts as a mediator that transfers momentum to the material. This intermediary approach allows high-speed ejection capability while eliminating the sticking problem, as the air stream can accelerate material without requiring narrow clearance gaps that cause jamming.