The flow rate of bulk solids can be determined by dosing processes. Also the total amount of the product is measured. For the dosing it is essential that enough product is available.
Continous dosing of free flowing products
Fig.4: Installation of Flow Controller FC3 with the advantage of low height
The dosing of easily flowing bulk solids is commonly realised as volumetric dosing. Because of varying product attributes it is often inaccurate, especially in case of granulates, pellets or grain goods. Gravimetric measurement has the advantage to eliminate these attributes.
Dosage usually takes place at an outlet of a silo or container. In many cases there is not many space inbetween outlet port and conveyor (chain conveyor, elevator, e.g.). The overall height sometimes allows less than 30 cm of space. Because of this problem, we constructed a feed gate, which has a height of 135 mm if the outlet is quadratic or a hight of 220 mm if the outlet is round.