Twin Screw Loss In Weight Feeder
Principle
In loss-in-weight feeding, the entire feeder, hopper and material are continuously weighed. As the feeder discharges material, the rate of decline in system weight is computed, and feeder speed is adjusted to maintain the desired (set) rate.
Application material
Resin Granules, Resin Powder, Calcium carbonate, French Chalk, Tio2, Carbon Black
Features
1. Cantilever type weighing frame ensure lower gravity(barycenter) center, weaker vibration and anti-interference performance of the whole feeder.
2. Vertical U-shaped hopper with mirror-like inner wall and without corner enclosure can ensure no bridge of the materials
3. Stainless Steel bellow sensor has the feature of only slight deformation after long time use, and high precision with less signal drift, and is durable for bad environment use
4. 485 Digital transmission of weighing data has the feature of no attenuation and anti-interference during the period of data transmission.
5. Feeding and stirring is operated separately, using independent agitation motor and stirring speed can be adjusted according to the demand.
6. No agitation motor on the top of the hopper will surely reduce the vibration during the operation, then this design will achieve high stability and high accuracy.
Specifications
|
Parameters
Model
|
FT-28
|
FT-38
|
FT-46
|
FT-64
|
|
Capacity range
|
20-100kg/h
|
50-300kg/h
|
100-600kg/h
|
200-1200kg/h
|
|
Volume
|
40L
|
100L
|
150L
|
250L
|
|
Range
|
50kg
|
100kg
|
150kg
|
200kg
|
|
Net Weight
|
86kg
|
140kg
|
170kg
|
190kg
|
|
Size
|
550x340x680
|
680x430x900
|
790x480x1050
|
950x530x1270
|
|
Power
|
AC380V
Feeding motor 0.25kw
+stirring motor 0.15kw
|
AC380V 3ph Feeding 0.37kw
+Stirring 0.2kw
|
AC380V 3ph Feeding 0.55kw
+stirring 0.4kw
|
AC380V 3ph Feeding 0.75kw
+Stirring 0.75kw
|
|
Screw
|
Solid Twin Screw
|
Solid Twin Screw
|
Solid Twin Screw
|
Solid Twin Screw
|
|
Dynamic accuracy
|
±0.5%
|
±0.5%
|
±0.5%
|
±0.5%
|
|
Resolution
|
1/100000
|
1/100000
|
1/100000
|
1/100000
|
|
Discharge tube
|
Φ45x3x2
|
Φ57x3x2
|
Φ65x3x2
|
Φ89x3x2
|
Micro Type Twin Screw Feeder Specifications
|
Parameters
Model
|
FT-15
|
FT-20
|
|
Capacity range
|
0.5-3kg/h
|
2-15kg/h
|
|
Volume
|
5L
|
8L
|
|
Range
|
3kg
|
5kg
|
|
Net Weight
|
40kg
|
50kg
|
|
Size
|
510x340x480
|
530x360x480
|
|
Power
|
AC220V 1ph
Feeding Servo Motor 0.1kw
Stirring Servo Motor 0.1KW
|
AC380V 3
Feeding Servo Motor 0.2kw
Stirring Servo Motor 0.2KW
|
|
Screw Type
|
Solid Twin Screw
|
Solid Twin Screw
|
|
Dynamic accuracy
|
±0.5%
|
±0.5%
|
|
Resolution
|
1/100000
|
1/100000
|
|
Discharge tube
|
Φ26x3x2
|
Φ30x3x2
|
FAQs
- How does loss in weight feeder works?
Gravimetric loss in weight feeder is an instrument that is important to control and measure the speed of a substance in an instrument system. This equipment can handle the bulk solids. It allows the solid to discharge at a constant weight per unit time. The unit of measurement is kg/min or Kg/hour. The signal about the weight is used as a system of feedback control. It controls and monitors the feed rate that enters a instrument. The weighing systems include several examples such as platform scales, load-cells, weigh hoppers, etc. Depending on the overall process, the gravimetric feeder may be a loss-in-weight system or a gain-in-weight system.
- What are the most important benefits the gravimetric feeder can give to you?
To ensure excellent quality of final product by accurately metering the bulk ingredients.
To reduce the labor cost and improve labor work environment
To Improve product stability
Reduce dust pollution and be more environmentally friendly
- What is general accuracy rate of the good loss in weight feeder?
Our general feeder’s feeding accuracy rate can be 0.5%. The micro twin screw loss in weight feeder accuracy rate can be up to 0.3%.
- What is the main composition of a typical loss in weight feeder?
Loss-in weight feeders for bulk materials consist of storage hopper, controlled feeding devices such as augers, screws chutes, pumps as well as scales or load cells, loss-in-weight controllers or rather loss-in-weight feeder controllers. Optional: e.g. agitators to improve the quality of the bulk material.
