Today we continue to work with Major Mining companies on new developments in Backfill design systems. A lot of experience was gained from the early day trials carried out with most of the mining companies in South Africa. 9' provided by This is a limited preview of the contents of this book and does not directly represent the item available for sale. It is important not to underestimate the Harshness of Backfill in the Mixer design. Limited Preview for 'agitator selection and design e.e.u.a. Work at the time was done in conjunction with the Chamber of mines. Mixtec has continued ongoing research which was started as early as 1978 and continued through Mixtec’s inception in 1984. The book covers agitator fundamentals, impeller systems, optimum power and air flow at peak mass transfer calculations, optimizing operation for minimum energy. Using backfilling also reduces the underground fire risk as timber packs are replaced with Backfill Bags. The advantages of backfilling include: improved Recovery - With the success of backfill there has been a reduction in the amount of ore locked up in shaft pillars and hence an improvement in ore recovery. To facilitate drainage, the minus 45 micron fraction is usually removed from the slurry and with the underground plants, this de-slimed material, typically at an SG of 1.7 to 1.8, is sorted in underground dams prior to be being pumped to the stope area. Binders such as cement, slag or pulverised ash are often mixed with the slurry to increase the load bearing characteristics. To meet these needs, we at PRO-DO-MIX ® have developed a range of products for volumetric. Dosing Anyone who works in the field knows how essentially important the dosing of powders is in every industrial process.
From research to field testing, our daily work is based on an all-round design effort. In the seventies, mining companies around the world began utilising backfill.īackfilling involves the treatment of waste material or tailings, de-watering the product by varying degrees and placing the material in mined out areas. Production A cornerstone of our company, production is the most essential of our activities.