Page 45 - HUB-4 Magazine Issue 83

Quarrying News
Denmark’s leading sand specialist invests
in CDE ultra fines recovery system
The specialist sand manufacturer will use the CDE technology to recover valuable sand fractions...
Dansand AS technical manager Claus Arve and CDE Group business development manager Allan Esmann in front of the Dansand office in Brædstrup Denmark
Dansand A/S, Denmark’s leading sand specialist, has announced plans for a new state-of-the-art ultra fines recovery system, designed and engineered by wet processing experts CDE, for its main site in Addit, north of Brædstrup.
Founded in 1971, the company, then owner of several gravel pits, quickly became the leading supplier of silica sand to the Danish
Dansand main site in Addit - Location of the future CDE plant engineered for Dansand
technical manager at Dansand A/S.
“This has been our primary means for extracting sand, however now that we have reached ground water level we need to transition to dredging to ensure we can continue extraction activities. This presents a new set of challenges for our operation and it’s for this reason we’ve partnered with the team at CDE to engineer an efficient, high accuracy solution that can recover valuable fractions of very fine dredged sand from large volumes of water.”
CDE business development manager Allan Esmann says while similar technologies are successfully operating in other regions, the dredge-fed wash plant will be the first of its kind commissioned by CDE in Europe.
“As Dansand A/S commences dredging, it becomes necessary to separate dredged sand from ground water before it can be cleaned of lignite and silt or clay fraction then correctly sized. Central to achieving this will be our EvoWash ultra-fines recovery system with optimised hydrocyclone technology which is proven to recover every valuable grain and eliminate
the loss of quality fines. What makes this particular system unique is the custom cyclone
composition needed to ensure Dansand
A/S continues to manufacture its very large product suite without
compromising on quality of various end products.”
The plant will be operational in early 2024.
For more information about CDE wet processing solutions, visit CDEGroup.com
foundry industry thanks to its quartz-rich deposit in Addit. From this base, the company expanded its expertise in the production of silica sand-based products to meet the specific requirements of the wider concrete and mortar industries.
Today, Dansand A/S extracts and produces over 500,000 tonnes of refined silica sand in more than 20 different blends every year, supplying the construction sector, various types of industries, sports facilities, playgrounds and the DIY markets.
After more than five decades of operation, Dansand A/S, owned by PKB Holdings and Sibelco, the world’s largest supplier of minerals, has now reached ground water level at its pit in Addit.
The company has historically extracted material using wheel loaders but a new approach is now required, says Claus Arve,
CDE ultra fines recovery system created for Dansand to recover valuable fractions of very fine dredged sand from
large volumes of water
www.hub-4.com Nov/Dec- Issue 83
| p45 |