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Technews Industry Guide - IIoT 2018

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Improved fuel management for mine fleets
November 2018, Flow Measurement & Control


In the current economic climate, most companies are looking to make their Rands go further. This is especially the case when it comes to fuel, as modern industries cannot operate without it and diesel costs continue to rise.

Fuel and lubricants are the lifeblood of the mining industry, which rely on them to ensure continuous operations. They are also one of the biggest expenses on a mine, so the way in which a mine purchases, stores, manages and uses these products can make an enormous difference to the bottom line. Effective fuel and lubricant management can help mines reduce their operating costs, increase their productivity and reduce environmental risks.

Large mining vehicles can easily consume a lot of fuel. A good example is a mining haul truck’s average consumption rate. On the normal gradients of 10% found on a mine haul road, and with a typical payload of 182 t, the vehicle goes through approximately 350 litres of diesel an hour. This goes up dramatically if the driver speeds or puts the vehicle under additional stress. Thus a Cat 793F mining truck with a fuel tank capacity of 2839 litres will operate for approximately 8 hours before it needs to be refuelled.

Depending on the remoteness of the operation, mining companies can lose several days of production through waiting for fuel to be delivered to site. Therefore, many mine sites require fuel and lubricant bulk storage in order not to halt operations. Monitoring of these inventories, purchases and usage then becomes crucial to assist management make well-informed decisions that increase mobile asset performance, reduce fuel consumption and improve the overall profitability of the mine.

Endress+Hauser’s fuel handling solutions

Endress+Hauser offers various solutions for mine sites. When it comes to fuel handling, there are sometimes disagreements between the supplier of fuels and the mine, which can vary from discrepancies between the amount of fuel transferred to the quality of (e.g. watered down fuel). At a diesel price of around R16 per litre, a typical mechanical flowmeter with an accuracy of 0,5% could yield an inaccuracy of 2500 litres on a 50 000 litre purchase, which equates to a possible loss of R40 000. To decrease measuring inaccuracies, Endress+Hauser’s loading metering skids use a Coriolis flowmeter with an accuracy of 0,1%. The meter has a special density calibration to compensate for varying fluids, which assists in identifying if a fuel is potentially watered down. The complete loading metering system has an overall accuracy of 0,25%, which is twice the accuracy of traditional mechanical meters.

Once the fuel is onsite it needs to be stored, which requires accurate inventory management. Since a mine site can have several fuel storage tanks onsite with varying capacities, it is an ever-changing environment where a wealth of data is required to make informed decisions; many mines still do not have access to the right information.

For effective decision making, the availability of high-quality online and real-time data is essential. Endress+Hauser offers an inventory management solution with accurate, safe and reliable measurement through high-quality products precisely designed to meet customer requirements. The solution includes a level measurement that can use a servo gauge (Endress+Hauser Proservo NMS80) with an accuracy of 0,4 mm. It also includes temperature measurement (Endress+Hauser Prothermo NMT 530), a unique device used for compensation for temperature, having multiple temperature measurement points across the entire height of a tank. An additional benefit of Prothermo is that it can also detect water in a fuel storage tank.

Safety

Safety is an important issue at mining sites. Handling of fuels incorrectly on sites can cause harm to the environment (or worse), especially if tanks are overfilled resulting in a spillage. Endress+Hauser offers a complete overfill prevention solution certified according to IEC 61511 by independent safety experts. An automated proof test guarantees that the safety system functions properly: proof-testing of 16 tanks takes less than 5 minutes.

The solution described forms an integral tool for decision making with regards to effective fuel management:

• The load metering solution assists with accurate metering and quality to identify water in the fuel.

• The inventory management solution assists with effective storage management.

• The overfill prevention system assists with safety in fuel handling.

For more information contact Dhiren Naidoo, Endress+Hauser, +27 11 262 8000, dhiren.naidoo@za.endress.com, www.za.endress.com


Credit(s)
Supplied By: Endress+Hauser
Tel: +27 11 262 8000
Fax: +27 11 262 8062
Email: info@za.endress.com
www: www.za.endress.com
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Further reading:

  • Endress+Hauser plans new regional centre near Houston
    December 2018, Endress+Hauser, News
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  • Picomag for utility measurement
    December 2018, Endress+Hauser, Flow Measurement & Control
    In industrial process measurement and automation, demand is steadily rising for simple, reliable and maintenance-free measuring instruments in a pocket-sized format. The new Picomag from Endress+Hauser ...
  • Optisonic biogas flowmeter
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    The new Optisonic 7300 Biogas ultrasonic flowmeter from Krohne has been specially designed to measure dry and wet biogas with variable composition. The meter provides additional functions like calculation ...
  • Environmental challenges in the mining industry
    November 2018, Endress+Hauser, Flow Measurement & Control
    Endress+Hauser’s water quality measurement instruments.
  • Clearly visible flow measurement
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  • Endress+Hauser development team earns the AMA Innovation Award
    September 2018, Endress+Hauser, News
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  • Magnetic flowmeter with IO-Link
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  • Clamp-on ultrasonic flow measurement
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    Kobold’s portable DUC-MP and the stationary DUC-MF are designed for continuous non-intrusive flow measurement where accurate and drift-free operation is required for liquids in filled pipes. The devices ...

 
 
         
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