In the mining industry a ready supply of mineral rock needs to be kept on hand in order to ensure a continuous production process. The raw material is stocked in large bunkers with heights of over 30 m and diameters up to 20 m. The huge dimensions of the silos make it necessary to fill and empty at several places. To ensure an even filling and emptying of the bunker, the mineral rock level is measured at different places inside the bunker. Vega has a product especially developed for bulk solids applications.
Level measurement with Vegapuls 68
The radar sensor Vegapuls 68 measures the level of the mineral rock without interference from dust, abrasion, product dampness and filling noise. Silo height is no problem either, as horn and parabolic antennas are available for the reliable handling of measuring ranges up to 75 m. Through the use of multiple radar sensors, different filling points can be measured and an even distribution of material ensured: the different measurement setups do not influence each other.
Setup and commissioning is as simple as selecting a few application parameters and the software ensures optimal instrument configuration. Users can even retrofit on already installed instruments, quickly bringing an existing system up to date.
Overfill protection with Vegacap65
Vega has another instrument that is ideal for use in the bulk solids silo situation. The capacitive level switch, Vegacaop 65, is a tried and tested solution for reliable bunker overfill protection. Its robust construction makes it ideal for rough operating conditions and its sensor delivers a reliable switching signal regardless of the nature of the rock. The gravity weight on the cable probe can be shortened or lengthened. It is made of standard or high-grade steel which resists the hardest blows and ensures a long service life.
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