小麦秸秆低温烘焙综合实验设计

Comprehensive Design of Low Temperature Baking Experiment for Wheat Straw

  • 摘要: 为了使学生更好地了解生物质可再生能源,本实验中心设计了一个生物质烘焙综合实验。通过小麦秸秆低温烘焙实验,能够很好地把元素分析、工业分析、热值测定、水分测定等实验串联起来,并对烘焙实验做出综合评价。实验结果表明,烘焙温度为240 ℃时,能量收率为90.24%,固体产物粉碎后的粒度通过率为90%(D90)时,粒度为349 μm,能满足气流床气化炉对颗粒粒度的要求。通过综合分析评价,可以为工业烘焙炉的设计提供一定的基础数据;通过综合分析评价优化烘焙工艺参数,可以提高学生的综合评价及分析能力。

     

    Abstract: In order to help students understand biomass renewable energy, our experimental center has designed a biomass baking comprehensive experiment. Through the low-temperature baking experiment of wheat straw, it is possible to effectively connect experiments such as proximate analysis, ultimate analysis, calorific value analysis, and moisture analysis, and make a comprehensive evaluation of the baking experiment. The experimental results show that when the baking temperature is 240 ℃, the energy yield is 90.24%. When the particle size pass rate of the solid product after crushing is 90% (D90), the particle size is 349 μm, which can meet the requirements of the fluidized bed gasifier for particle size. Through comprehensive analysis and evaluation, certain basic data can be provided for the design of industrial baking furnace. By comprehensively analyzing and evaluating the optimization of baking process parameters, students' comprehensive evaluation and analysis abilities can be improved.

     

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