Rotor Weigh Feeders

Introduction:

Rotor Weigh Feeders is also called pulverized coal scale,it is assembled control equipment through absorbing foreignadvanced technology and developing by our company, aims tocontinuous convey and metering for powdery material. It is a newgeneration dynamic measurement instrument with merits of advancedworking principle, compact structure, accurate metering, reliablerunning, and easy to maintain, to some certain extent can beparallel with foreign ones.
FB-DACS9000 control system can achieve auto-weighing, quotafeeding, automatic peeling weighing, auto-correction, malfunctionalarm, display of instantaneous and cumulative flow, and perfectsignal transmission and communication.
Features:
1. Be applied for dynamically and continuously feeding andmeasuring the jet-like material or non jet-like material andpowdery material.
2. The feeder integrates feeding with weighing, adjusting andconveying.
3. Feed-forward control, high accuracy and low fluctuation.
4. It can not only eliminate the differential pressure causedby  pneumatic transmission and material feeding, but alsotransmit the coal from coal bunker to bunker. It Is a feedingcontrol device integrating quantitative feeding with conveying withhigh accuracy.
5. Permanent gravimetric weighing operation and reliable operation.Discharge directly from the storage bin without a feeding controldevice before the rotor weigh feeder.
6. Lower the fluctuation of coal feeding and reduce the excess airso as not to increase CO when discharge the gas.
7. Because the rotor weigh feeder and the compress air system areintegrated as a whole, so the rotary valve and screw pump aresaved.
8. The pressure changes of the compressed air system do notinfluence the accuracy so the measuring accuracy is high.
9. The rotor weigh feeder structure is compact so as to save space;the building area is small so as to reduce the capitalinvestment.
10. Can bear 1 Mpa pressure and is explosion-proof.

11. The whole design is composite structure. It is easy tomaintain the rotor. The wear parts can be quickly replaced withoutspecial tool and lifting equipment.
12. Adopt special material, service time is extended, maintenancereduced, investment saved and operation rate improved.
13. 32 bit microcomputer is used as the main control device ofelectronic control part; touch screen is adopted as human-computerinterface; frequency converter is mainly used as the controlcomponent. All of make our product offer high technology.
Working principle:
Rotor Weighfeeder is mainly applied for continuous gravimetricweighing of pulverized coal in the cement calcination process. Theprocess of coal discharging, weighing and conveying to pneumatictransmission pipe is all finished in this enclosed structure.
It adopts the operation principle of the rotor by gravity force.Bulk material is discharged from the bunker through rotor, broughtto weighing area, and then sent to the pneumatic transmission pipeafter measurement and at last sent to the process by the air fromthe air fan. The weighing shaft passes through the outlet of thematerial and the disconnectable coupling between pneumatic pipe androtor which means that it can compensate the secondary loadreaction caused by pressure fluctuation and do not influence thematerial measurement results. Whenever the material passes theweighing area, its weight will be measured by weighing device.Material weight and position are all stored in the electronicsystem of the feeder, namely, the load condition of every part ofthe rotor has been got before the discharge. In order to make thepre-setting value match the material quantity stored in the storagehouse, angular velocity of rotor required in the discharge positionhas been calculated and finished by the rotor driving device.Through this pre-control principle, the rotor weighfeeder cancalibrate any fluctuation and offer high accuracy.
Parameter:
Weighing Range: 0~50t/h
Weighing Accuracy: ±0.5%