采用滚筒造粒法在2.0~2.8 mm与2.8~4.75 mm 2种粒度分布的复合肥颗粒进行颗粒抗压碎力实验,比较55个品种的复合肥料,总共251个复合化肥试样的颗粒抗压碎力与粒度的关系,分析通过改变粒度而改变复合肥颗粒的抗压碎力,减少复合肥的结块情...采用滚筒造粒法在2.0~2.8 mm与2.8~4.75 mm 2种粒度分布的复合肥颗粒进行颗粒抗压碎力实验,比较55个品种的复合肥料,总共251个复合化肥试样的颗粒抗压碎力与粒度的关系,分析通过改变粒度而改变复合肥颗粒的抗压碎力,减少复合肥的结块情况。结果表明,2.0~2.8 mm化肥粒比2.8~4.0 mm化肥粒的颗粒抗压碎力要小。基于滚筒造粒法,复合化肥的粒度和抗压碎力的关系为粒度越大则颗粒抗压碎力越大。展开更多
Adding a moving baffle to the drum is a new way to enhance the motion and mixing of particles in rotating drums.To obtain its influence on binary particles,horizontal rotating drums provided with a moving baffle were ...Adding a moving baffle to the drum is a new way to enhance the motion and mixing of particles in rotating drums.To obtain its influence on binary particles,horizontal rotating drums provided with a moving baffle were investigated by discrete element method(DEM).AtΩ=15 r/min,increasing the length of moving baffle can increase the fluctuation amplitude of average particle velocity.AtΩ=60 r/min,the influence of the moving baffle on the average velocity fluctuation tends to be more random.At both rotational speeds,the moving baffle causes the average particle velocity to fluctuate more sharply.The moving baffle can enhance particle mixing.AtΩ=15 r/min,the moving baffle with length ofδ=1/3 can best enhance particle mixing.However,atΩ=60 r/min,only the moving baffle with a specific length(δ=1/4)can enhance mixing.This basic research has a positive reference value for the application of the moving baffle in industry.展开更多
基金Project(51676032)supported by the National Natural Science Foundation of ChinaProject(IRT_17R19)supported by the Program for Changjiang Scholars and Innovative Research Team in University,China
文摘Adding a moving baffle to the drum is a new way to enhance the motion and mixing of particles in rotating drums.To obtain its influence on binary particles,horizontal rotating drums provided with a moving baffle were investigated by discrete element method(DEM).AtΩ=15 r/min,increasing the length of moving baffle can increase the fluctuation amplitude of average particle velocity.AtΩ=60 r/min,the influence of the moving baffle on the average velocity fluctuation tends to be more random.At both rotational speeds,the moving baffle causes the average particle velocity to fluctuate more sharply.The moving baffle can enhance particle mixing.AtΩ=15 r/min,the moving baffle with length ofδ=1/3 can best enhance particle mixing.However,atΩ=60 r/min,only the moving baffle with a specific length(δ=1/4)can enhance mixing.This basic research has a positive reference value for the application of the moving baffle in industry.
