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The TS 1542 radial stacker (left) automatically stockpiles material from the TS 1524 link conveyors (right) to create a 300m x 150m heap leach level pad.

Attachments
Could mobile conveying replace earthmoving equipment?

While load and haul fleets remain dominant in the quarrying application, a couple of international case studies suggest that mobile conveyors can be just as valuable in the transportation of aggregate from the face to the stockpile. Read more »
The decision to replace production equipment before it is exhausted is both economic and performance-driven.

Conveying
Making the right equipment replacement decisions

Is it time to replace your plant and equipment? Paul D Tomlingson discusses how the economics of replacement must be balanced against the potential performance benefits of new equipment. Read more »

Case Studies
Heavy equipment hire helps avoid capital risk, project delays

With demand for specialist machines outstripping supply globally, and with construction materials at a premium locally, quarries are feeling the “pinch” of the infrastructure boom. As Delta Rent’s Richard Khan explains, plant and equipment rental could be part of the solution to this “squeeze”. Read more »

Case Studies
Equipment hire: Extracting long-term benefits from short-term solutions

As the extractive industry grapples with the dual challenges of meeting construction materials demand and maintaining modern fleets of plant and equipment, Damian Christie speaks with four industry suppliers about the merits of plant hire. Read more »

Case Studies
Producer hails new era in recycling of glass fines

Alex Fraser Group, one of the largest recycled aggregates producers in Australia, has announced it is taking its glass recycling one step further by building an improved processing plant at its Laverton facility. Adam Somerscales discusses the company’s plans and vision. Read more »

Case Studies
Tramp metal removal system cleans up dolomite reserves

Heavy-duty metal detectors and a suspended electromagnet, used to clean up aggregates, have been instrumental in removing ferrous and non-ferrous tramp metals from one of the world’s largest dolomite operations. Read more »
The processing plant for clayey shell limestone at the Mönsheim quarry.

Case Studies
Twin-shaft mixer increases yield by 25 per cent

Raw materials from a quarry that were previously sent to landfill are now being sold after a twin-shaft mixer was employed to add quicklime to clay-contaminated pre-screened material. This ‘dry process’ has made it possible to completely separate the clay from the rock for processing. Read more »
The fixed plant arrangement at Blackhead Quarry, on the seaward side of Green Island, near Dunedin.

Case Studies
Blackhead Quarries: Improving plant flexibility, energy, efficiency and safety

A Kiwi extractive operator has, in collaboration with a multinational supplier and its distributor, upgraded mobile and fixed plant across its operations. Personnel at Blackhead Quarries explain why local expertise and supplies are critical to maintaining continuous production. Read more »

Crushing
Three reasons for oversized rocks in the primary crusher feed

Oversized aggregate in the primary feed crusher can be incredibly disruptive at the start of any crushing circuit. Adrian Imre discusses the three critical factors that can prevent blockage in the primary feed. Read more »

Case Studies
Crushing circuit benefits from early contractor involvement

Boral has taken a major step towards being able to mine “anywhere and any time” at its Deer Park Quarry in Melbourne, thanks to the installation of an innovative and modern processing plant. Read more »
The GT205S multi-frequency screen has innovation at its heart, combining the technology of conventional incline and high frequency screens.

Crushing
Encouraging 'art' in processing

In standardising and streamlining extractive work to reduce cost and increase productivity, producers should never rule out creative, innovative solutions in their operations. Read more »
The foam suppression system reduced dust emissions from the fixed plant through the secondaries to the stackers.

News
Foam suppression system works its charms on mobile and fixed plant

Controlling dust emissions is a major issue for most sites. For Hutchison Quarries, it was critical for its mobile crushing plant in Glenn Innes, New South Wales and its fixed plant in Warwick, Queensland. The mobile and fixed crushing circuits had become dust hazards. Read more »
The GT200DF features a quarry-spec, heavy-duty K200+ cone crusher design in a highly mobile package.

Case Studies
Crusher Excels In Hard Rock Trial

Hard Rock Quarries (HRQ), based in the Maryborough hinterland in central Queensland, is a small, family owned construction materials business. It has been operating since 2010 and took over the Maryborough quarry site from previous owners. Read more »
For 30 years, laser-based measuring and mapping systems, such as the Quarryman Pro laser, have supported safety, efficiency and productivity in the quarrying industry.

Case Studies
Alliance creates opportunity to enhance blast practices

A consultancy to the quarrying industry has collaborated with a multinational engineering technologies group on a blast optimisation project that experimented with the latest laser profiling, 3D face visualisation and blast prediction software. Read more »
Work is a under way to build a completely new hub bridging the south city district Södermalm with Stockholm’s medieval Old Town.

Case Studies
Planned precision: Drilling and blasting in an urban centre

Drilling and blasting in the cramped confines of the centre of a capital city required a steady hand, perfect planning and agile equipment that could do its job accurately. Susanna Lindgren reports on how blasting was successfully conducted in a sensitive environment. Read more »

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Monday, 25 March, 2019 8:36am
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