The effects of frequency and amplitude on the powder coating of fluidizing particles in a vibro-fluidized bed

被引：8

作者：

Kage, H

Oba, M

Ishimatsu, H

Ogura, H

Matsuno, Y

机构：

[1] Kyushu Inst Technol, Dept Appl Chem, Tobata Ku, Kitakyushu, Fukuoka 8048550, Japan

[2] Mitsubishi Chem Corp, Kyushu Plant, Yahatanishi Ku, Kitakyushu, Fukuoka 8060004, Japan

来源：

ADVANCED POWDER TECHNOLOGY | 1999年 / 10卷 / 01期

关键词：

D O I：

10.1016/S0921-8831(08)60458-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Glass beads were coated in a vibro-fluidized bed by atomizing a fine silica powder and polyvinyl alcohol solution. The coating efficiency and weight fraction of the agglomerated particles were measured under various experimental conditions, and their dependencies on the amplitude and frequency of vibration were investigated. When the humidity of the outlet gas was high, high coating efficiency and agglomeration of core particles were observed. The efficiency of the powder coating decreased as the amplitude and the frequency increased, while the agglomeration was prevented by the addition of vibration. It was confirmed that high-quality and high-efficiency coating, where few agglomerates were produced and silica powder was utilized efficiently, was possible using the vibro-fluidized bed with adequate amplitude and frequency.

引用

页码：77 / 87

页数：11

共 5 条

[1]

FUKUMORI Y, 1993, CHEM PHARM BULL, V41, P1144

[2]

FUKUMORI Y, 1994, CHEM PHARM BULL, V42, P2604

[3] Coating efficiency of seed particles in a fluidized bed by atomization of a powder suspension [J].