The effect of the ball size on the product characteristics of shaker HEM to produce nano particle from bamboo charcoal

2017 1st International Conference on Engineering and Applied Technology

Supriyono^1 ; Ngafwan^1 ; Joharwan, J.W.^2

Dept. of Mechanical Eng., Universitas Muhammadiyah Surakarta, Jl. A Yani Tromol Pos 1, Pabelan Kartosuro, Surakarta, Indonesia^1

Dept. of Mechanical Eng. Akademi Teknik Warga, Jl. Raya Solo Baki km 2, Sukoharjo, Indonesia^2

关键词: Ball size;    Bamboo charcoal;    Fracture mechanisms;    Number of cycles;    Particle size analyzers;    Product characteristics;    Stainless steel cylinders;    Steel balls;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/403/1/012090/pdf
DOI  :  10.1088/1757-899X/403/1/012090

来源: IOP

【 摘 要 】

The aim of this research is to study the effect of the ball size on characteristics of the product of high energy milling (HEM) of shaker type to produce nano particle from bamboo charcoal. A new shaker mechanism is developed. The characteristics of the particle are represented by particle size, surface morphology, and the substances presence in the product. Particle size analyzer (PSA) is conducted to have the particle sizes, whereas SEM and EDX are used to have surface morphology and substances presence in the products respectively. The mixtures of 11 gr of bamboo charcoal powder of 200 mesh and about 299 gr of steel ball are placed in vials. The vial is from stainless steel cylinder with 11/4 inch diameter and 120 mm length. The stroke of the shaker is 54 mm at 233 rpm. The number of cycle is 4 million cycles. The steel ball sizes are 1/8, 5/32, 3/16 and 1/4 inch. PSA results show that there is no certain correlation between the steel ball size and particle size. The final shape of the particles is determined by fracture mechanism. The highest substance presence in the result is C.