【摘要】 为降低生物质燃料的应用成本,采用双超声辅助振动压缩生物质的方法,研究了压缩时间、预压力、生物质质量、生物质含水率等4个单因素对木屑压块密度的影响,并利用正交实验优化压缩工艺。结果表明,各工艺参数对压块密度的影响程度依次为压缩时间>生物质质量>预压力>生物质含水率。最合适的超声压缩工艺条件:压缩时间为50 s、预压力为0.172 MPa、生物质质量为1.0 g、生物质含水率为15%。在优化条件下,压块的密度为1.366×103kg/m3。更多还原

【Abstract】 In order to reduce the cost of using biomass fuel,paper studied on the influencing factors such as pellet time,pressure,pellet weight,moisture content on the pellet density of sawdust with the method of dual ultrasonic vibration-assisted pelleting of biomass,and optimized the parameters by using the orthogonal experiments. The results showed that the order of the influencing factors was pellet time> pellet weight> pressure>moisture content. The most suitable pellet conditions were as follows: the pellet time 50 s,the pressure 0.172 MPa,the pellet weighs 1.0 g, the moisture content 15%. The pellet density was 1.366×103kg/m3 under the optimized conditions.更多还原