Air Classifier

Operating principle:
Classifier, together with cyclone separator, dedusting filter and radial fan, forms
the whole system of classification and collection. Under the lashing force of radial fan, feed materials are brought with uprising air stream from feed inlet of classifier into the classifying body. Under strong centrifugal forces of high-speed rotating turbo wheels,
coarse and fine materials are separated. Coarse materials lose speed after bumping against wall and fall to secondary draught. With strong washing of the secondary drought, coarse and fine materials are separated once again. Fine materials go up to classifying cavity to be classified
continuously, while coarse materials fall down to discharging outlet and go into the collectors.

Performances and features (FW series air-stream classifier)

l Suitable for accurate classification of dry micro-products with spherical, needle-like or piece shape and different densities.

l Particle size: D97:2-150um, adjustable ad changeable.

l Classifying rate: 60%-80%.the better the fluidity is, the higher the classifying rate is, otherwise it is low.

l Horizontal classifying turbo-wheel, high rotating speed, accurate top point cutting.

l To connect with ball mill, vibration mill and rolling mill to form a closed circuit.

l Programmable control system, real-time operation status and simple operation.

l Running under negative pressure. Throughput of dusts is less than 40mg/m³. Noise is lower than 75dB (A) through silencer.

Multi-wheel:

Type

FW400/3

FW400/4

FW400/6

FW630/3

FW630/4

FW630/6

FW800/3

FW800/4

FW800/6

Throughout
T/h

0.2 - 1.5

0.3 - 2

0.5 - 3

1 - 5

2 - 8

3 - 10

2 - 8

3 - 10

5 - 15

Particle Size
d97: um

2 - 45

2 - 45

2 - 45

3 - 45

3 - 45

3 - 45

4 - 45

4 - 45

4 - 45

Classifying Percentage
%

60 - 80

60 - 80

60 - 80

60 - 80

60 - 80

60 - 80

60 - 80

60 - 80

60 - 80

Power
kw

90-110

120-140

170-200

135-155

170-190

250-290

180-200

220-290

290-390

Single-wheel:

Type

FW200

FW280

FW400

FW520

FW630

FW800

Throughout

kg/h

10 - 100

20 - 200

50 - 500

100 - 1,500

200 - 2,000

400 - 4,000

Particle Size

d97:um

2 - 45

2 - 45

2 - 45

3 - 45

3 - 45

3 - 45

Classifying Percentage
%

60-80

60-80

60-80

60-80

60-80

60-80

Power
kw

7-11

15-19

21-28

23-30

52-60

67-77

Applications:

Widely used in chemical industry, mineral processing industry (esp. CaCO3, Kaolin, quartz, talc and mica), metallurgy, grinding materials, ceramics, fire-proof material, medicine, farm chemical, health stuff and new materials.