Flow, level & control D
o you know what melaphyre is? This fine-grained basalt rock is used by industry as a raw material for building materials, concrete and road aggregates. Melaphyre processing is a multi-stage process that requires precise measurement at many points. At the Tłumaczów open-cast mine operated by Regnars in Lower Silesia, Poland, level measurement of the material in crushers, mills and silos is extremely important. The ultrasonic measuring instruments previously used for this purpose were error-prone and unsuitable for the harsh operating conditions. The solution to these problems came in the form of VEGA level transmitters, in particular, transmitters of the VEGAPULS BASIC series.
HOW VEGA RADAR TRANSMITTERS WITHSTAND THE HARSH CONDITIONS IN OPEN-CAST MINING
The 80-GHz radar technology used by VEGA enables non-contact measurement, keeping the transmitter at a safe distance from the actual measuring point. This minimises the risk of damage or interference from the production processes themselves. What is more, VEGA radar transmitters are unaffected by temperature fluctuations, vacuum, or pressure, and totally non-sensitive to dirt and dust. While dust, vibration, stone chips and changing weather conditions greatly afflict ultrasonic transmitters and cause malfunctions, such conditions are no problem for VEGAPULS BASIC level transmitters. The instruments are robust and hard-wearing, and operate with great accuracy – around the clock. Thanks to the high frequency of 80 GHz, the radar beam can be focussed very tightly and directed with pinpoint precision onto the bulk solid material. This allows VEGA radar transmitters to measure even in narrow shafts, through dust clouds or in vessels with internal fixtures. Even dust-covered antennas have little effect on the measuring result.
ENDURANCE TEST FOR VEGA LEVEL TRANSMITTERS
The VEGAPULS BASIC radar transmitters demonstrated their strengths in practical testing at Regnars. To ensure smooth operation, they measure the level of melaphyre in the crushers and buffer silos. Whether as wire-connected VEGAPULS C 21 and VEGAPULS C 23 in the silo or as VEGAPULS 11 and VEGAPULS 31 with local display, the transmitters provide transparency and keep the process running.
SIMPLE MOUNTING, TROUBLE-FREE INSTALLATION
VEGA offers plant operators a wide range of accessories and various mounting brackets that greatly simplify installation of the radar transmitters. And simple setup and commissioning ensures smooth integration of the VEGAPULS transmitters into existing processes. To make it as
16
LEVEL TRANSMITTERS IN OPEN-CAST MINING
Working in open-cast mining is not for the faint-hearted: Even the measurement technology used there is pushed to its limits. Fortunately, Regnars can rely on the precise measurement data to control their production processes. Radar-based VEGA level transmitters provide the necessary transparency even under difficult conditions and thus guarantee efficiency and safety.
VEGAPULS radar transmitters of the BASIC series measure the level of raw material in the crushers.
easy as possible to access measured values and parameters, the transmitters can be operated both locally and remotely – the latter conveniently via Bluetooth communication with a smartphone or tablet. This feature is particularly useful for installations that are difficult to access, like those located in Ex hazardous areas or under harsh environmental conditions of open-cast mining, such as in Tłumaczów.
CONCLUSION
Regnars has been using VEGAPULS BASIC transmitters since the summer of 2023. The results speak for themselves: Trouble-free and precise measurement of the required levels under difficult conditions. VEGA level transmitters not only ensure the required product quality by guaranteeing efficient, stable and uninterrupted mine operation. They also protect the life and well-being of the mine workers.
Reliable despite dust and dirt: Compact VEGAPULS transmitters are maintenance-free and deliver precise measuring results in the buffer silo around the clock.
VEGA Controls
www.vega.com
January 2026 Instrumentation Monthly
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73
