Cing labor intensity; The entire production process is sealed, thus avoiding such quality problems of granules, breadcrusts, bubbles and cy The entire process of continuous automatic production is controlled by computer. Operators set technical parameters via computers, and realize total tracking of production process, which means all technical parameters in production can be fed back real-time via computers for direct analysis, for operators to control at any time, and for in-time adjustment of fluctuation occurring in production. Wooden or nude