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GeoResources - Mining, Tunnelling, Geotechnics, Energy - News, Events and Journal

11.11.2021 (390 Clicks)

Fugro launches its new Generation of uncrewed Surface Vessels in the Netherlands

Fugro's Blue Essence, an offshore certified uncrewed surface vessel (USV) with an electric remotely operated vehicle (eROV), will begin its first project in the Netherlands. During operations the vessel is controlled from an onshore remote operations centre (ROC) via a satellite connection and will be used for the inspection of offshore assets, construction support services, and hydrographic and geophysical surveys.

 

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09.11.2021 (391 Clicks)

NSK Self-Lube Bearings prove reliable in harsh Conditions


NSK Self-Lube® bearing units with triple lip seal and end cap protectors provide an extended service life in harsh operating conditions, such as those prevalent within the quarrying, mining and construction sectors. This proven performance is vital in these industries, where contaminants can easily penetrate poorly specified bearings, bringing machinery and equipment to a halt.

Downtime is the enemy of quarry/mine operators and construction project managers. Critical plant and equipment must offer reliable performance to meet demanding output targets, project deadlines and budgets.

Whether extraction, transportation, preparation, separation or enrichment, these processes are subject to contamination and debris, not to mention heavy loads, shock loads and vibration. Bearing selection is vital to ensure long service life. Getting it right means that mining and construction sites can maximise their uptime and productivity while simultaneously reducing maintenance costs.

Leveraging state-of-the-art design, material, lubricant and seals, NSK Self-Lube® bearings exceed the life of conventional bearings. Furthermore, by selecting Self-Lube® bearings with triple lip seal and shaft end protectors, it is possible to reduce the costs associated with downtime and repairs.

Reliable protection

NSK recommends its specially developed triple-lip seal for applications with a high degree of contamination. Bonded to a protective outer steel pressing (secured in the outer ring), this one-piece moulded nitrile seal with three lips makes for a highly efficient sealing design that protects the bearing in severe operating environments.
Standard Self-Lube® bearing inserts also have a locating groove to allow the easy fitting of an optional end cap protector. The cap helps to protect personnel from rotating components and the bearing from external contamination.

NSK Self-Lube® bearing units comprise a broad portfolio of reliable inserts and housings. Notably, these cost-effective solutions provide a fast and straightforward solution for mounting bearings without the need for complex housings or special shaft arrangements.

Reduce costs

The combination of easy use, self-lubrication and long service life mean that increasing numbers of companies in the quarrying, mining and construction sectors are now reducing their costs for replacement bearings, maintenance and downtime.

A case in point involves a company that was experiencing frequent reliability problems with the bearing units assembled in a vibrating drum. These bearings work in severe environments, where they suffer exposure to sand that often wholly covers the units. In addition, due to the nature of the application and its difficult access, the regularity and increasing cost of maintenance was proving an issue.

Following a comprehensive failed bearing analysis as part of its AIP Added Value Programme, NSK proposed Self-Lube® bearing units with triple lip seals, which increased the operating life by a factor of 10 against the previous solution. In addition, the three high-integrity nitrile seal lips with lubrication traps have provided an effective way of stopping the ingress of contaminants.

Design innovation

In another customer success story, a company supplying ready-mixed concrete and other construction materials invited NSK to perform an application review of its augur screw pump bearings. The augur pumps transfer ash (an abrasive mixture of ash, sand, glass, fibres and metal grit) into waiting containers. Here, the screws lift the ash at an angle of approximately 40°, where the lower bearing units frequently fail.

Upon examination of the failed bearings, NSK was able to identify several issues. For instance, after removing the flinger seal, it was evident that no contact seal was running against the inner ring of the bearing. It had likely worn away, and there was now a direct contamination path into the bearing. Further problems included heavy cage corrosion and the absence of lubrication. The ingress of fine dust and particulates had probably soaked up any grease and created a grinding paste, eroding the rubber seal.

To rectify the situation, NSK again recommended its Self-Lube® bearing units. In this case, NSK also suggested the inclusion of a small disc plate with an additional seal. This minor redesign would help stop most of the contamination and significantly reduce pressure on the bearing seal as it features a path for the debris to escape.
By further improving the sealing, using the triple lip sealing solution on the Self-Lube® insert bearing, it is likely that reliability will significantly improve. In addition, the use of an end cap protector for the bottom bearing could also benefit the company as it will help reduce any dust ingress.

These examples are just two of many successes that NSK is encountering in quarrying, mining and construction applications.

Source: NSK



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09.11.2021 (325 Clicks)

Orica partners with Government to reduce Kooragang Island Site Greenhouse Gas Emissions by 48%

Orica has announced plans to install an Australian industry first tertiary catalyst abatement technology EnviNOx at its Kooragang Island manufacturing plant. The technology is designed to deliver up to 95 per cent abatement efficiency, reducing the site’s total greenhouse gas emissions by almost 50 per cent.

 

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09.11.2021 (311 Clicks)

Scavenger Hunt for Minerals is elementary for Students

About 80 Everton Park State High School students will be surprised to learn about the minerals contained in everyday items today when they take part in a Hunting Minerals, Metals and More workshop run by the Queensland Minerals and Energy Academy (QMEA), the education arm of the Queensland Resources Council (QRC).

 

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09.11.2021 (413 Clicks)

QRC: Going clean and green with Hydrogen

It’s clean, it’s green and can’t be seen, but students at Gladstone State High School will learn today that hydrogen, the new kid on the block of low-emissions energy, is likely to play an important role in powering homes and industry in the years ahead.

 

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09.11.2021 (329 Clicks)

Rolls-Royce to deliver mtu Engines and Systems for Key Sectors of China's Industry

  • Agreements and contracts signed at CIIE with Chinese partners and customers from power generation, C&I, mining and rail industries
  • Power Systems focuses on long-term partnerships in China and “local for local” approach to sales and services, manufacturing and R&D
 

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09.11.2021 (352 Clicks)

BHP announces Divestment of BMC Interest

BHP announced it has signed a Share Sale and Purchase Agreement to divest its 80 per cent interest in BHP Mitsui Coal (BMC), an operated metallurgical coal joint venture in Queensland.

 

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09.11.2021 (323 Clicks)

Orica partners with Government to reduce Kooragang Island Site Ghg Emissions by 48%

Orica has announced plans to install an Australian industry first tertiary catalyst abatement technology, EnviNOx® at its Kooragang Island manufacturing plant. The technology is designed to deliver up to 95 per cent abatement efficiency, reducing the site’s total greenhouse gas emissions by almost 50 per cent.

 

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08.11.2021 (321 Clicks)

Fugro wins two Energinet Site Investigation Contracts for Denmark’s Energy Island

Fugro has secured two geotechnical site investigation contracts with Energinet for Denmark’s proposed Energy Island project.

 

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08.11.2021 (433 Clicks)

New Balfour Beatty Vinci TrainingAcademy to upskill local People ready for Work on HS2

A new training academy established by HS2’s construction partner for the West Midlands, Balfour Beatty Vinci, has opened its doors to the public.

 

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GeoResources
Latest Articles

20.10.2022 

Failures of self-drilling Hollow Bar Systems, and Lessons learnedFailures of self-drilling Hollow Bar Systems, and Lessons learned

Threaded hollow bar systems have grown in popularity and the range of products has increased. The market is flooded with many commercial options comprising different material properties and surface treatments, and providing varying methods for corrosion protection. ...  

#FRIEDR. ISCHEBECK GMBH #Geotechnics #anchors #anchoring equipment, roof bolting

18.07.2022 

GeoResources Journal 2-2022GeoResources Journal 2-2022
Special Topic: Focus on Future

We are pleased to present to you the current edition of the English Journal GeoResources....  

#Fluid Competence GmbH #Hermann Paus Maschinenfabrik GmbH #Naue #SMT Scharf GmbH #Messe Berlin #Mining

18.07.2022 

Focus on the Future, or ’suppose that’Focus on the Future, or ’suppose that’

’Suppose that’ our mind games about the future of what we do in the areas of geotechnical engineering, tunnelling, mining and raw materials positively influence the decisions we take tod...  

#Energy #Geotechnics #Tunnelling #Mining

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UCT 2023 - 28th Annual Underground Construction Technology


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26.02.2023 - 01.03.2023

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Specials
World’s longest Railway Tunnel Project – supported by innovative Conveyor Digitalisation and reliable Engineering

World’s longest Railway Tunnel Project – supported by innovative Conveyor Digitalisation and reliable Engineering

17. October 2022 (606 Clicks)

The consortium BTC Brennero Tunnel Construction and the Hosch Group jointly delivered on a world-class tunnelling project by combining excellent engineering with the innovative remote monitoring system Hoschiris Discover.  

#Brennero Tunnel Construction (BTC) #HOSCH-Foerdertechnik Recklinghausen GmbH #Tunnelling #Traffic tunnels #Conveyor technology #Digitalisation

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Books / Bücher
RAG-Technikchronik - Buch 1: Technikentwicklung und Forschung der RAG

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27. December 2019 (2849 Clicks)

Das Buch 1 "Technikentwicklung und Forschung der RAG" behandelt zusammenfassend die Ergebnisse der Bücher 2 bis 6 und ergänzt um das Thema Lagerstätte aus dem Buch 7. Das Thema „Forschung und Entwicklung“ wird genauso behandelt, wie der Streckenausbau, die Entwicklung der Technikbereiche, die Bergwerksautomatisierung und die Unternehmensdigitalisierung.  

#RAG Aktiengesellschaft #Mining #Digitalisation

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23. Kolloquium Bohr- und Sprengtechnik 2023

Trend News
Europe’s largest Deposit of Rare Earth Metals is located in the Kiruna Area

12.01.2023 (325 Clicks)

Europe’s largest Deposit of Rare Earth Metals is located in the Kiruna Area

LKAB has identified significant deposits of rare earth elements in the Kiruna...  

#LKAB #Mining #Energy #underground mining

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Trend News
K + S appointed Dr. Carin-Martina Tröltzsch to the Board of Executive Directors

24.01.2023 (214 Clicks)

K + S appointed Dr. Carin-Martina Tröltzsch to the Board of Executive Directors

The Supervisory Board of K+S Aktiengesellschaft has appointed Dr. Carin-Marti...  

#K+S AG #Mining #underground mining

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Masan High-Tech Materials integrates global R&D activities under leadership of H.C. Starck Tungsten Powders

07.01.2023 (207 Clicks)

Masan High-Tech Materials integrates global R&D activities under leadership of H.C. Starck Tungsten Powders

H.C. Starck Tungsten Powders is bringing together the research and developmen...  

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Implenia wins large and complex tunnelling project in Norway – E03 Boknafjord tunnel

07.01.2023 (184 Clicks)

Implenia wins large and complex tunnelling project in Norway – E03 Boknafjord tunnel

  • Joint Venture of Implenia and Stangeland Maskin selected to plan and ...  

    #Implenia Construction GmbH #Tunnelling #Traffic tunnels

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