Wood processing is molding the wood under the action of a mould after being softened, bending the curve shape that the design requires, the following procedure is drying and shaping. In this case, wood cannot be heated and shaped by fire, therefore, heating and softening the wood by steam has been the only choice. Jiangsu Hongya Wood Industry Co., Ltd. is mainly engaged in producing, processing and selling wood and wood products. There are a mass of wood pellet and wood chip residuals during the processing; Hongya Wood has always been insisting on making good use of waste materials and using these wood residuals as boiler fuel. Due to the high moisture and low calorific value of the wood pellets and wood chips, the problems of low combustion efficiency, ash accumulation and abrasion are inclined to happen. The new generation biomass-fired boiler, which is designed and developed by ZOZEN, has optimized the design of the feeding hopper, the length and width of the fire grate, rotary spee