FYW Series Classifier is 1. A centrifugal classifier with secondary air inlet. 2. Dry Air Classifier. 3. D97=4-150um.

FYW Grader

Principle:

The feed which is sent to the rotary valve door at the upper tube through a feeder and transported to the grading chamber by rotary valve is dispersed and classified fully at grading rotor which are installed horizontally. The coarse particles are thrown to the tube wall and go down along the tube wall. Owing to the action of dual air and firstary air of central tube at fan, the fine powder mixed in the coase is sent to the rotor for classification. At leat, the coarse particles go down along the tube wall and are dischanged from the rotary valve of lower tube, the fine ones are discharged from the exhaust pipe through the gap of the rotor blade. The returing tail gas discharged from wind maching to free air in the collector.

Features:

 • The grader is a dry type air grading machine, which is equipped with dual airinlet and horizoutally installed grading rotor and being of a centrifugal type. It is strong in wear-resistance. long in service-life, generally applicable to the classification of free-materials.• Substances which are even uneasy to be dispersed in the air obtain coarse and fine powder with optimal clean degree.• It attains a wide grading range. It is selective in a rang of d97=10um. The maximan production capability comes to 8t/h, being widely used in the cement industry.• It can classify different particles either in ball or slice or fibrous shape and being able to separate materials with different densities.• High degree of grading particle d75/d25=1.1-1.5.• High grading efficieney, newton efficiency η=60-90%.• Compact construction. The size of the grading particle diameter is easy to e adjusted. It is also convenient in assembling, operation, maintenance and cleaning. It also occapies a very small area being small in vibration.• Powerful production capability, while operating at d97=10um, the capability can reach 1000kg/h approx. It can unitedly operate with other machinery mill to obtain fine powder.

Flow Diagrammatic Sketch

1 Elevator2 Storage bin3 Screw feeder4 Cyclone collector5 Star valve6 FYW classifier7 Butterfly valve8 Pulsed bag collector9 High pressure fan 10 Noise eliminator

Main Technical Parameters

Index model	DIAMETER OF ROTOR(mm)	Power of Rotor Motor (kw)	Capacity(kg/h)	MAX. Revolution(r/min)	Air Volume (m3/min)	Main Machine Size(mm)	Weight(kg)	Fan Power(kw)	D97
FYW300	150	4	20-200	8000	12.9	850X700X1120	300	11	4-80
FYW400	200	5.5	50-400	6000	16.6	1030X840X1600	400		5-120
FYW630	315	11	200-2500	4000	42	1080X1200X1744	600	18.5	6-150
FYW850/4	200X4	5.5X4	800-4000	≥6000	100	1400X1400X2196	2500	75	4-150
FYW1000	500	15	1000-8000	2400	125	2280X1626X2808	2130	55	8-150
FYW 1250	630	22	1000-5000	2000-200	160	3500X2200X3300	3500	75	8-150

 The real machine in our facoty(FYW300)

FYW Series Classifier