The system is saving us £1.75million per year

Here is a solution

Quinn’s Sand Production Quarry, Northern Ireland

MRS solves wet stockpile problem and saves Northern Ireland glass makers £35,000 per week on energy costs.

Quinn’s Sand Production Quarry were suffering large energy costs and associated hazards with their wet sand stockpiles for their glass factory production line. The costs of melting sand for glass making was escalating and was only going to increase further, following the doubling of fuel prices in the last 5 years.

Similarly, the saturated sand stockpiles were hampering production due to gravity drainage being too slow and the base of the stockpiles were unstable resulting in stockpile slump. This was causing difficulty for front-end loaders to operate as the moisture content was far too high even after many hours of normal gravity drainage time.

Challenge

  • Reduce moisture content significantly
  • Remove instability and stockpile slump
  • Install system in amongst 2 sets of railway lines
  • Maintain the company’s ongoing operations
  • Reduce significant energy costs

Solution

Following an initial site visit and survey to assess basic details pertaining to the estimated permeability value, particle size and shape, the stockpile size and the current moisture percentage of the product; MRS carried out on-site tests that demonstrated the moisture levels could be reduced to 4% in only a few hours, a reduction of well in excess of 10%.

The design proposal methodology incorporated a unique installation technique that enabled the system to be installed in amongst two sets of railway lines in a ‘Rip Rap’ configuration at the threshold of the interface between the stockpile and the ground level.

This prevented contact occurring between front loaders and the system itself. The installation took place in three stages, and at off-peak times so as to accommodate the customer’s ongoing programme of production.

Upon Completion, Tommy Dolan stated “The system is “saving us between £25,000 – £35,000 per week and £1.75million per year. Our materials are drier and easier to handle. We are very pleased with our investment.”