Belt weighers are used in a wide range of industries to report instantaneous flow rate and totalized mass feed rate of powders and bulk solid materials. This data is commonly used for stock control, process control and in bulk material blending processes.
A ModWeigh MW95 Belt Weigher System is used to measure the flowrate of material carried by a belt conveyor. It measures the belt loading and belt speed and calculates the material flowrate.
A ModWeigh MW99d4 or MD1 Flowrate Indicator is used to calibrate the system and provide a status display of the operating system. It has a graphics display with easy to use menu selection of settings.
A typical Active Weighing Solutions Single Idler Belt Weigher comprises of a full floating weigh frame, stainless steel shear beam load cell, speed encoder, trailing wheel and an EMC Modweigh 95A transmitter connected to a MW99 Display. To calculate the material flow rate the transmitter measures:
- the flow rate of material carried by the belt conveyor
- the belt loading and,
- belt speed
Multiple ModWeigh transmitters can be connected to a single remote display.
A number of factors affect the accuracy and suitability of Belt Weighers in a given situation. The following factors are considered by Active Weighing Solutions engineers in determining the appropriate configuration for a particular application.
- location of the weigh frame in the system
- conveyor length and degree of incline
- belt construction and tension
- belt troughing angle
- idler alignment
- material loading and material residence times
- ongoing maintenance and operational housekeeping
- Belt weigher