The invention discloses a corn stubble machine, formed by a steel frame, a rotary scraper, a blade and an adjusting wheel, suspended on a small four-wheel drawing frame.

The development and application of corrosion-resistant and high strength and abrasive-resistant coating as well as it effects on the scraper of pellet rotary dryer in Liugang were introduced.

It is composed of cabinet, hot air recycle system, rotary, and scraper device and transmission system.