Asphalt, which is manufactured in asphalt mixing plants for the construction and road building industry, consists mainly of bitumen and gravel of different grain sizes. Other materials, such as binders, sand, stone chips and special additives are also mixed in.
Depending on the temperature and the mixing ratio, the final product is either a tar-like liquid or a relatively solid material. Composition and properties vary depending on what the asphalt is used for.
The mixture is prepared in an electronically controlled process in which the individual components are brought together in a specific order and mixed. Temperatures up to 180°C, steam, intense filling noise, different repose angles as well as the extremely sticky and abrasive product place heavy demands on the level measuring system.
In order to maintain the quality of the asphalt mixture for an extended period, the asphalt is stored in temperature controlled containers. Vega’s radar sensor VegaPuls 68 monitors the level continuously without touching the medium and unaffected by the difficult conditions, ensuring a smooth production process.
VegaPuls also monitors the level during filling and emptying. The level data is forwarded to the downstream VegaMet 381 signal conditioning instrument and displayed there. This unit also provides a switching contact as dry-run alarm to prevent the feed unit from running empty. By using these systems in conjunction with one another, optimal utilisation of the costly container volume is ensured.
A fresh approach to dairy processing VEGA Controls SA
Level Measurement & Control
Ensuring the quality and safety of milk throughout the production process is of the utmost importance in the dairy industry. The VEGABAR pressure transmitters are suitable for hygienic applications. They are an asset in the dairy industry and have been used with success for measuring the milk level and the process pressure in storage tanks.
Read more...Pulp fiction or pulp precision? VEGA Controls SA
Sensors & Transducers
The density of fruit concentrate has a direct impact on the flavour, texture and overall quality of the final product. The VEGA Minitrac 31, VEGASOURCE 31, and the KV 31 mounting bracket present a failproof solution that effectively addresses the technical complexities associated with high temperature, viscosity and fouling.
Read more...Differential pressure measurement in gas extraction and power generation project VEGA Controls SA
Pressure Measurement & Control
Methane exploration and extraction in Lake Kivu in the East African Rift Valley has primarily focused on gas composition analysis. The VEGABAR 82 pressure transmitter was used for differential pressure measurement, the key to monitoring gas levels within the lake.
Read more...Level measurement of an acid dosing tank at a WWTP
Level Measurement & Control
Ferric chloride and other acids are essential chemical substances in water and wastewater treatment. To control the dosing of acid solutions, an Australian wastewater treatment plant uses a special container to store, mix and add these chemicals. The company opted in favour of KROHNE’s OPTIWAVE 1540 radar level transmitter
Read more...Level measurement of leachate from sewage sludge humification
Level Measurement & Control
A municipal utility in eastern Germany operates a state-of-the-art wastewater treatment plant with sustainable sludge treatment. The ultrasonic signal was being partially deflected by the wind, leading to frequent false measurements and inefficient process workflows. The problem was solved by replaced the ultrasonic level sensor with KROHNE’s OPTIWAVE 1540 non-contact radar.
Read more...Groundbreaking measurement system Mecosa
Level Measurement & Control
Berthold Technologies has launched the LoopSeries LB 430, an innovative, industry-leading measurement system designed to enhance operational efficiency with advanced level, density, and level switch capabilities.
Read more...Level measurement of a water sump at a sewage treatment plant
Level Measurement & Control
A major city council in South East Queensland, Australia maintains and operates a wastewater treatment plant (WWTP) for municipal, industrial and agricultural wastewater. Due to the risk of flooding, the water sump must be continuously monitored. The solution is KROHNE’s OPTIWAVE 1540 radar level transmitter.
Read more...Simplicity in measurement Endress+Hauser South Africa
Level Measurement & Control
Endress+Hauser’s new 80 GHz compact radar range is designed to help customers reach their compliance targets through simple yet efficient measurement solutions.
Read more...Don’t buckle under pressure VEGA Controls SA
Pressure Measurement & Control
In Africa, urban populations are increasing and infrastructure is expanding at an unprecedented pace. This makes sustainable water management and treatment more crucial than ever. By investing in VEGA pressure instrumentation, water utilities and municipalities are equipping themselves with pressure sensors that facilitate sustainable water management focused on efficiency, reliability and resilience.
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