Crushing Static & Mobile

Metso and the University of Queensland in Brisbane, Australia, have finalised a three-year agreement encompassing joint research and performance evaluations of the VERTIMILL grinding mill developed by Metso.

A global leader in dust suppression technology has introduced a new low-turbulence design for applications in which a fan-driven mist would be undesirable. Developed in response to extensive customer input, the DustBoss DB-M from Dust Control Technology is said to be well suited to operating conditions involving very fine dust particles, including slag dust or fly ash. The unit generates an umbrella-shaped cloud of atomised droplets averaging 50-200 microns in size, projecting the mist about 9.14m under cal

Hydraulic breakers are proving more popular for primary winning in quarries than ever before. Mike Woof visited Lopardo quarry in Italy to find out why. Nestling among the steep tree-covered hills close to the small town of Brienza near Potenza in Southern Italy lies the Lopardo quarry. The site covers a comparatively small area but the quarry has high walls because of the surrounding hills and this is a far more modern and efficient operation than its dimensions might suggest.

Investing in new equipment and using western quarrying techniques is helping one Chinese quarry to boost productivity. Second hand machinery, combined with high demand, means that some Chinese quarries are struggling to produce continuous supplies of aggregates for the construction market. Hong Kong owned Wah Tong Machinery Trading is working to overcome the supply problems in its Guangzhou quarry by investing in new equipment. The company is one of a new breed of contractors in the country, which are going

AR Aggregates has said it is aiming for quality rather than quality with it latest equipment purchase for its newest UK operation. The newly formed aggregates arm of AR demolition has recently acquired new Sandvik QA450 and QE340 screens and a QJ340 crusher. “We could have just bought a second-hand crusher and screen and been content with producing a 6F2 product, but there are plenty of other companies doing that. We wanted to be unique in this area,” explained AR co-director Andrew Thompson. “We have, th

The drill and blast method is used in many quarries to win stone for crushing, but there are alternatives. Patrick Smith reports. European restrictions on blasting operations are now so rigorous that some quarry operators have abandoned the practice in favour of other methods. One of the major reasons for the regulations is that people living or working near, or even in quarries, could be affected by flying rock, the shock waves from a blast or the noise. Dust could also be problem, and concerns have been e

Contract crushing is gaining popularity as quarry operators try to match production to market need. Demand for aggregates in Spain has been steadily rising over the last decade and the growth looks set to continue. But regional variations mean that keeping production in line with demand is a challenge.

Hanson's Spanish subsidiary, Hanson Hispania, is rising to the demand challenge at its Cabezo Gordo limestone quarry, near Alicante in Murcia, by turning to contract crushing. The company is using Transp