Wet processing plant helps firm to double up

Image courtesy of Justin Carrigan (Plant & Civil Engineer)

A family business in Tempo on the outskirts of Enniskillen, Northern Ireland, has reportedly doubled its materials processing ability since installing a new CDE wet processing plant

Campbell Contracts has been extracting sand and gravel for over three decades. In recent years, it started controlled blasting activities and now counts sand, gravel, crushed rock, rock fill and screened topsoil among its product range.

Last year the business teamed up with CDE to help grow and diversify its portfolio of high-quality quarried aggregates.

Campbell had previously utilised a traditional barrel washer. Director Brendan Campbell said, “It was suitable to our business needs at the time it was installed, and it has served us well over its 30 years of service. Increasingly, we need to ensure we can recycle and reclaim as much primary aggregate as possible during the quarrying process and the barrel washer had its limitations.”

The Campbell Contracts barrel washer was said to be efficient when processing cleaner virgin material. Its limitations, however, became evident in its inability to wash heavier, clay-bound materials, according to CDE.

CDE completed tests at Creagh Concrete on material extracted from Campbell’s Letterbailey Quarry. The results were used to develop a bespoke wet processing system. Campbell Contracts’ new 120 tonnes per hour wet processing plant includes the L35 Feed Hopper, M2500 incorporating the twin-deck P2-75 Infinity Screen and EvoWash, and CDE’s AggMax83, integrating the RotoMax RX80 logwasher and H2-60 Infinity Screen.

CDE said the modular plant combines feeding, screening, washing and stockpiling onto one compact and mobile chassis.

Campbell Contracts is now processing three materials it previously categorised as waste: clay-bound sand and gravel, primary scalpings and crushed rock fines.

David Kinloch, regional manager for CDE in the UK & Ireland commented, “CDE wet processing technology has demonstrated that all quarry by-products have the potential to be processed into marketable products that add significant value to a business.”