玉米秸秆与气化焦油共混成型的机械特性分析

Mechanical Characteristics Analysis of Corn Straw and Gasification Tar Blending Molding

摘要: 以焦油为粘结剂、玉米秸秆为原料制备生物质成型燃料，研究了焦油含量、含水率、成型压力、原料粒径和成型温度对成型块机械特性的影响。研究结果表明，当焦油含量从0%增加到12%时，成型燃料抗跌强度从83.18%增加为99.99%，密度从1.06 g/cm³增加为1.36 g/cm³；当含水率从4%增加到20%时，抗跌强度从90.56%增加到97.15%，密度逐渐减小；当成型压力从2 MPa增加到4 MPa时，抗跌强度降低了0.33%，密度无明显变化；当原料尺寸从小粒径增加到3 mm时，抗跌强度和密度呈降低趋势；升高成型温度有利于增加抗跌强度和密度。

Abstract: Biomass molding fuel was prepared with both tar as binder and corn straw as raw materials. The effects of tar content, moisture content, molding pressure, material granularity and molding temperature on mechanical properties of molding fuel were studied. The results show that when the tar content increases from 0% to 12%, the falling strength of the molding fuel increases from 83.18% to 99.99%, and the density increases from 1.06 g/cm³ to 1.36 g/cm³; when the water content increases from 4% to 20%, the falling strength increases from 90.56% to 97.15%, and the density decreases gradually; when the molding pressure increases from 2 MPa to 4 MPa, the falling strength decreases by 0.33% and the density has no obvious change; when the material granularity increases from small particle size to 3 mm, the falling strength and density decrease; Increasing the molding temperature is beneficial to increase the falling strength and density.