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Austrian success for CDE

Wopfinger Transportbeton GesmbH invest in new CDE sand washing plant

CDE have supplied a new Evowash 101 sand washing plant to Wopfinger Transportbeton GesmbH at their Eggendorf site, in Lower Austria, which has resulted in a 60% increase in gravel production, from 135 tonnes/h to 220 tonnes/h. 

Before the new Evowash sand washing plant was installed, Wopfinger were working two shifts at Eggendorf to meet the capacity requirements of the ready-mixed concrete plant located at the sand and gravel pit. This has now been reduced to one shift as a result of both the quality and quantity of the washed gravel being produced.

 

‘Our previous sand production system was a real bottleneck and resulted in us having to work two shifts in order to ensure we had enough gravel to meet our concrete production requirements,’ explained Franz Denk, technical director at Wopfinger Transportbeton. ‘By addressing this issue, we have introduced significant efficiencies into our production processes at Eggendorf.’

The new Evowash 101 sand washing plant produces 100 tonnes/h of washed 0–4mm sand, which is used for on-site concrete production. The Evowash receives material from the existing wet screening plant directly to a sump from where it is pumped to an integrated 625mm cyclone. The underflow from the hydrocyclone is discharged on to an Evowash dewatering screen and stockpiled, while the wastewater containing the 0–63-micron fraction overflows the top of the hydrocyclone and is sent to settling ponds.

Wopfinger Transportbeton have manufactured concrete at Eggendorf since 1990 and the plant was upgraded in 2011 to support the construction of the A2 motorway, for which Wopfinger supplied more than 25,000 cubic metres of concrete. 

The Eggendorf production facility is located just off the A2, approximately 50km south of Vienna and is one of four gravel plants operated by Wopfinger Transportbeton in Lower Austria. The company has a total of 14 concrete production facilities in East Austria.

 

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