Authors

Abstract

To realize the integrated technology of biochar return to the soil, the key components of the biochar discharge system applicable to the biochar return machine were designed, and the force analysis of the return shovel was carried out to obtain the main working parameters affecting the effect of biochar return. Single factor and multi factor simulation tests were conducted with the coefficient of variation of biochar content uniformity as evaluation indexes, and outlet distance, conduit diameter, baffle angle as influencing factors. The data were processed and parameters were optimized using Design-Expert, and the results were optimized and experimentally verified. The results from the experimental the coefficient of variation of biochar content uniformity and simulation data from the model showed good agreement. Therefore, the procedures of this study can be used for the integrated technology of biochar return.

Abstract in Chinese

为实现生物炭还田一体化技术，设计了适用于生物炭还田机上的排炭系统关键部件，并对还田铲进行了受力分析，得到影响生物炭还田效果的主要工作参数。单因素和多因素的仿真试验将炭量均匀性变异系数作为评价指标，将出口距离、导管直径和挡板夹角作为影响因素，利用Design-Expert处理数据并优化参数，优化结果并试验验证。实验结果显示，炭量均匀性变异系数与模型的模拟数据有很好的一致性。因此，本研究的程序可用于生物炭还田一体化技术。