Page 46 - HUB-4 Magazine Issue 77

Quarrying
Gallagher’s Hermitage Quarry reduces their carbon footprint with the help of PowerX Equipment
By John Vincent
Hermitage Quarry is located in Maidstone, Kent and is one of only two processing operations actively quarrying Kentish Ragstone. Owned and operated by Gallagher Aggregates Ltd who are at the heart of the Gallagher Group. Hermitage Quarry has the capability to produce up to 1 million tonnes of aggregate per annum, which are processed into more than 70 different construction materials. Gallagher also operate six concrete plants, supplied mainly by their own indigenous aggregates. Additionally, Gallagher operate a modern recycling facility at Hermitage Quarry which processes construction and demolition waste into a range of recycled aggregates in addition to an active Landfill facility that accepts inert waste which cannot be recycled to fill the void left by quarrying back to original levels.
Hermitage Quarry features two benches, which are drilled and blasted by conventional techniques and the as blasted material is loaded and hauled to the processing plant that features a Hercules trommel, which efficiently segregates the interbedded nature of the deposit. The material is then processed and washed into aggregates through a series of crushers, screens, log washers and cyclones.
All these operations including drilling and blasting are conducted by the in-house Gallagher team.
The new conveyor installation:
Having previously visited the quarry almost twenty years ago to view the then new wash plant [which had been installed by PowerX Engineers] it was interesting to view the recent changes in operation today.
I met Dave Scanlan the Quarry Manager who took me on a tour of the quarry.
Recently modifications have been made to the stockpile feed from the wash plant.
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www.hub-4.com Nov/December 22 - Issue 77