Fermentation of organic fertilizer is mainly divided into three stages Pulverized Coal Burner, Dryer Machine, Two Stage Crusher Plant, New Type Buffering Granulator,Double Stage Metal Crusher. Fully automatic composting machine The product will supply to all over the world, such as Europe, America, Australia,Vancouver, Montreal,Karachi, Uganda.The double-stage pulverizer is widely used in municipal solid waste, distiller's grains, mushroom residue, etc. The preferred compost pulverizer has upper and lower poles for pulverizing, and two sets of rotors connected in series with each other. The pulverized materials are pulverized by each other to achieve the pulverizing effect.