Weighing & Dosing Direct Flow Meter for Weighing of Solid Materials
According to Rembe, the C-Lever direct flow meter for solid materials is the first weighing system that truly fulfills the function of weighing. Optimal measuring accuracy is achieved by applying fundamental physical principles. The system is completely unfazed by density, friction, particles and flow rate fluctuations.
The C-Lever direct system is installed and operating in the Schöndorfer GmbH’s dolomite plant in Jettenberg, Austria. Their requirements were based on the exact dosage of dolomite powder on a conveyor – at a mere flow rate of 300 up to 500 kg/h. The structural requirements basically didn’t permit an installation at
normal height. With a minor height of just 670 millimetres, the C-Lever direct 12 PRE stood the test. Despite extreme dust development, further dedusting within the device itself could be waived. Stability was achieved through tungsten carbide coating that is applied to the gravimetric slide sensor during a thermal spray process. Tungsten carbide is characterised by its very high wear resistance.
With its coated gravimetric slide, the C-Lever direct accurately and consistently measures the ground dolomite rocks. Through this measured value, the customer is now capable of adjusting the flow capacity to the conveyor. The conveyor’s effective use now lies at 100 percent and isn’t overloaded.
Rembe says that, besides high accuracy, flexibility, simple integration and handling, their measuring system offers high process safety. This would be guaranteed by a patent-pending, friction-free measurement of the centripetal force. Compared to other bulk flow meters, the the C-Lever gravimetrically measures the product stream at the sensor, in other words, without any mechanical components such as rotary belts, bearing or other moving parts. The manufacturer claims that this results in a substantial improvement of the current industrial standards of up to ± 0.2 percent at a turn-down ratio of 20:1 on the measuring range. Even minor flow rates of under 100 kg/h can be linearly measured. The C-Lever recognises and compensates various influences on the bulk flow, thus, measuring is not influenced by the numerous variable factors arising during the process. The steeply mounted gravimetric slide sensors prevent the product’s adhesion, which eliminates the zeropoint shift as a source of error. Elaborate pneumatic dedusting becomes history.