[Skip to content]

World Highways Roads & Bridges Aggregates Business Europe Construction Pan-Americana CMTM Construction Equipment
Search our Site
News by Category:
Caterpillar Bauma 2013 295 x 110Italy at Bauma 295 x 110Trimble Bauma 2013 295 x 110Bauma 2013 Preview Banner Ammann 295 x 110Topcon bauma banner 295 x 110Dressta Bauma 2013 295 x 110Liugong Bauma 2013 295 x 110
Video Sponsor  Trimble
Click here to see all Daily News videos 295x91

Underground Construction

17 April 2013

 

RSS

Getech spins centrifugal washwater cleaner into tunnelling applications

First publishedbauma
2013
Daily News
[ Zoom ]
bauma 2013 Daily Getech Washwater
Centrifugal separators are compact and suited to operation in confined spaces.
Getech, the Italian manufacturer of centrifugal washwater cleaning systems (formerly Gennaretti) is targeting tunnelling operations with containerised versions of its V type machines.

The five-machine range can remove up to 60tonnes an hour of solids from washwater flows of up to 180m3/hr.

The system uses a rotating helical flight shaft (similar to an Archimedes screw) to separate the solids using centrifugal force in the same was as a cyclone air filter. As the contaminants are thrown outwards, the helix pushes them along the machine towards a narrowing taper, which separates the excess water from the solids.

According to the company, the system is only a fraction the size of a traditional filtration plant, making it ideal for tunnelling operations. The water it produces is 99% clean while the outlet cake has a dryness of 65%.

Although the system will accept bigger contaminants, ideally the maximum particle size in the infeed water should be kept to around 73microns to minimise wear.

The system can also recover bentonite from the drilling sludge for re-use and the scroll has a metalised anti-wear surface finish.

Stand: B2 105B

 

RSS