国槐、海棠和向日葵农林废弃物热压成型工艺优化  

Thermoforming Technology Optimization of Agricultural and Forestry Wastes of Sophora japonica,Begonia and Sunflower

作　　者：张颖男 张静[1] 郑德聪[1] 吴锴[1] 张秀全[1] 杨瑞 ZHANG Yingnan;ZHANG Jing;ZHENG Decong;WU Kai;ZHANG Xiuquan;YANG Rui(College of Engineering,Shanxi Agricultural University,Taigu Shanxi 030801,China)

机构地区：[1]山西农业大学工学院,山西太谷030801

出　　处：《农业工程》2020年第3期46-52,共7页AGRICULTURAL ENGINEERING

基　　金：国家重点研发计划(项目编号:2016YFD0701804);山西省重点研发计划(农业)(项目编号:201703D221030-2);山西省面上自然基金(项目编号:201801D121277)。

摘　　要：为找出国槐、海棠和向日葵农林废弃物热压成型固体燃料最优成型工艺参数,为生物质固体燃料生产提供理论依据,通过单因素试验设计,研究了颗粒度、含水率、压力和温度对国槐、海棠和向日葵热压成型固体燃料密度的影响。同时利用Taguchi法分析了国槐、海棠和向日葵固体燃料的最优成型条件及各因素对燃料密度影响的主次顺序。研究结果表明,国槐、海棠固体燃料成型的最优条件均为颗粒度0.63~1.25 mm,含水率5%,温度130℃,压力100 MPa;向日葵固体燃料成型最优条件为颗粒度0.16~0.63 mm,含水率6%,温度140℃,压力120 MPa。在最优条件下,国槐、海棠和向日葵固体燃料的密度分别为1.153、1.111和1.108 g/cm^3。颗粒度、含水率、温度和压力对3种物料固体燃料密度均有显著效果,含水率对国槐、海棠和向日葵固体成型密度的贡献率分别为69.06%、69.15%和53.72%,远高于其他因素的贡献率;压力(18.42%、11.99%和33.27%)次之;国槐、向日葵温度(7.54%、9.47%)较颗粒度(0.67%、2.01%)贡献率高,海棠温度(2.67%)较颗粒度(12.13%)贡献率低。因此,含水率是国槐、海棠和向日葵农林废弃物固体燃料成型的主要影响因素,实际生物质燃料生产中,必须注意含水率的控制。In order to provide a theoretical basis for production of biomass solid fuel,optimal processing parameters of hot pressing solid fuel from agricultural and forestry wastes of Sophora japonica,begonia and sunflower were found.Effects of particle size,moisture content,pressure and temperature on density of solid fuel for hot pressing of Sophora japonica,begonia and sunflower were studied by single factor design.At the same time,Taguchi method was used to analyze optimal shaping conditions of Sophora japonica,begonia and sunflower solid fuel and primary and secondary order of influence of each factor on fuel density.Results showed that optimum conditions of solid fuel forming of Sophora japonica and begonia were:particle size 0.63~1.25 mm,moisture content 5%,temperature 130℃,pressure 100 MPa.Optimum forming conditions of sunflower solid fuel were particle size 0.16~0.63 mm,moisture content 6%,temperature 140℃,pressure 120 MPa.Under optimum conditions,density of solid fuel of Sophora japonica,begonia and sunflower were 1.153,1.111 and 1.108 g/cm^3,respectively.Particle size,moisture content,temperature and pressure had significant effects on density of solid fuel of three materials.Contribution of moisture content to solid forming density of Sophora japonica,begonia and sunflower was 69.06%,69.15% and 53.72%,respectively,which was much higher than that of other factors.Pressure(18.42%,11.99% and 33.27%)was the second.Contribution rate of temperature(7.54%,9.47%)of Sophora japonica and sunflower was higher than that of granularity(0.67%,2.01%),while that of begonia(2.67%)was lower than that of granularity(12.13%).Water content was main factor that affected solid fuel shaping of Sophora japonica,begonia and sunflower.In actual production of biomass fuel,attention must be paid to the control of water content.

关 键 词：农林废弃物 Taguchi法 热压成型工艺 国槐 海棠 向日葵 

分 类 号：S216.2[农业科学—农业机械化工程]