Mining - Case Study

Challenge

• The mining of deposits with low material content requires ever more powerful equipment in order to come to grips with the mass throughputs.
• In order to reduce the cycle times, the ancillary times have to be minimised.
• Only through large filter elements with at least 10sqm filter areas can the necessary chamber volume be reached. At the same time, a long membrane service life is expected.

Solution

• Development of a filter element package consisting of membrane and chamber filter elements with a format of 2440 mm
• Reduction of spare part costs through the use of exchangeable membranes
• Design optimisation in respect to membrane movement during filling and squeezing that is gentle on material, quicker discharge of filtrated matter and more efficient sparging of the filter cake

Advantages

• Increase of durability of membrane filter elements to more than 150,000 cycles (example: coal tailings)
• Exchangeable membranes enable the use of air as a squeezing medium
• Reduction of cycle times through low amount of large-scale filter elements for the same chamber volume
• Reduced costs for maintenance and spare parts