双超声振动压缩生物质压块抗跌碎性的影响因素研究

Study on Factors Affecting Pellet Drop Resistance During Dual Ultrasonic Vibration-assisted Pelletizing of Biomass

为提高双超声辅助压缩生物质所得压块的持久性,研究了双超声压缩生物质过程中颗粒度、含水率、预压力、超声电源功率和压缩时间等单因素对麦草压块抗跌碎性的影响。结果表明:压块抗跌碎性随着生物质颗粒度的增大而逐渐减弱,随着预压力、超声电源功率和压缩时间的增加而增强,随着含水率的增加呈先增强、后减弱的趋势。

The influence of 5 factors such as particle size,moisture content,preload,uhrasonic power and compression time to the drop resistance of wheat straw pellet in dual ultrasonic vibration assisted pelletizing were investigated to improve pellet durability. With the increase of particle size, the drop resistance of wheat straw pellet decrease. As preload,ultrasonic power and compression time increase ,the drop resistance of wheat straw pellet increase. Moreover,with the increase of moisture content, the drop resistance of wheat straw pellet increase and then decrease.