SEGREGATION IN A STIRRED FLUIDIZED-BED

被引：10

作者：

ZHANG, Z

BEECKMANS, JM

机构：

[1] Department of Chemical and Biochemical Engineering, Faculty of Engineering Science, The University of Western Ontario, London

来源：

CANADIAN JOURNAL OF CHEMICAL ENGINEERING | 1990年 / 68卷 / 06期

关键词：

FLUIDIZATION; SEGREGATION; PARTICLE SEGREGATION; STIRRED FLUIDIZATION; SOLIDS SEPARATION; MIXING INDEX;

D O I：

10.1002/cjce.5450680606

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A bed of particulate solids supported by an upward current of gas can be stirred at moderate power input per unit volume using thin horizontal rods mounted on a vertical shaft. The bed is fluidized, but bubbles are suppressed below a critical value of the fluidizing velocity. Stirring increases bed bulk density and reduces the minimum fluidizing velocity. Segregation in a stirred fluidized bed is enhanced with both flotsam and jetsam tracer particles, but the rate of segregation is reduced with flotsam tracers. The stirred fluidized bed may be useful as a device for dry separation of solids.

引用

页码：932 / 937

页数：6

共 11 条

[1] OBSERVATIONS ON THE MECHANISMS OF SEGREGATION IN FLOTSAM-RICH, FULLY FLUIDIZED-BEDS [J].

BEECKMANS, JM ;

NILSSON, J ;

LARGE, JF .

INDUSTRIAL & ENGINEERING CHEMISTRY FUNDAMENTALS, 1985, 24 (01) :90-95

[2] SEGREGATION MECHANISMS IN GAS-FLUIDIZED BEDS [J].

BEECKMANS, JM ;

BERGSTROM, L ;

LARGE, JF .

CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1984, 28 (01) :1-11

[3] SOLIDS MIXING KINETICS AND SEGREGATION IN A VIBROSTABILIZED FLUID BED [J].

BEECKMANS, JM ;

CHU, JCH .

CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 1987, 65 (04) :536-540

[4]

BEECKMANS JM, 1982, CIM B, V75, P191

[5] STUDIES OF SEGREGATION MIXING IN FLUIDIZED-BEDS OF DIFFERENT SIZE PARTICLES [J].

NIENOW, AW ;

NAIMER, NS ;

CHIBA, T .

CHEMICAL ENGINEERING COMMUNICATIONS, 1987, 62 (1-6) :53-66

[6]

Rosensweig R. E., 1978, U. S. Patent, Patent No. [4,115,927, 4115927]

[7]

ROWE PN, 1972, TRANS INST CHEM ENG, V50, P310

[8]

ROWE PN, 1972, TRANS INST CHEM ENG, V50, P324

[9]

WEINTRAUB M, 1979, RIPMTC4 US DEP EN RE

[10] A GENERALIZED METHOD FOR PREDICTING MINIMUM FLUIDIZATION VELOCITY [J].

WEN, CY ;

YU, YH .

AICHE JOURNAL, 1966, 12 (03) :610-&

← 1 2 →