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fFeed Weigher, Gravimetric weighing combined with screw convey, Steady operation, can be connected to DCS, Pass ISO9001:2008 - details see: https://www.machineto.com/continous-screw-feed-weigher-for-powder-or-granular-10316376

Introduction:
FB screw feed weigher is a kind of measuring equipment for feeding control,

dynamic measuring and continuous conveying bulk material and powder.

It can be widely used in building materials, chemical, coal, ports,

ceramics, food, and other industries.
The screw feed weigherhas two types:single tube single layer and double

tube, double layer. If it is the former, it can realize measurement

and conveying at the same time. If it is the latter, the above

undertakes steady flow and conveying, and the bottom undertakes

measurement and conveying that can have better steady flow effect and

save spaces. Besides, the lenghth of the conveyor can be designed

according to actual conditions.
Working principle:
When material is conveyed through screw from inlet to outlet, the

material weight can be detected by the lode cell on the electrical

weighing device under the conveyor and a signal in proportion to the

material weight will be generated and transmitted to the controller.

Meanwhile, the speed can be detected by the speed sensor installed on

the tail pulley and a signal is also generated and transmitted to the

controller. By multiplying the weight signal and the speed signal, the

instantaneous flow value and total accumulation can be calculated. The

control system compares the actual flow signal with the set flow

signal and then regulates the output signal through PID to adjust the

feeding speed dynamically and thus to realize the continuous feeding.
Product Features:
1. FB-DMC-01A intelligent controller is adopted
2. Compact structure&steady operation
3. Automatically calibrate and measure system zero
4. With the function of self-diagnosis and can be connected to DCS

system
5. set all kinds of parameters by hand.
6. Gravimetric weighing combined with screw convey to realize

continuous dynamic measuring.
Parameters:
Weighing accuracy: ±1%
Conveying capacity: 1~100t/h

Screw Diameter(mm)		160	200	250	300	400
Pulverized coal	Max. Rotary Speed(n/min)	190	150	150	120	120
	Max. capacity(m3/h)	9.7	18.1	35.4	49	115
cement	Max. Rotary Speed (n/min)	90	75	75	60	60
	Max. capacity(m3/h)	3.3	6.7	13.3	18.3	43.5