Andrada Mining chooses TOMRA XRT sensor-based sorting technology for the tin plant at its flagship Uis Mine

Andrada Mining, the African technology metals mining company, owns the open-pit Uis tin mine, which represents one of the largest tin reserves in Namibia. It is in the course of implementing expansion plans at the mine, which include introducing a pre-concentrating circuit of ore sorters with the aim of increasing tin concentrate from 1,500 to 2,600 tpa. It has purchased TOMRA COM Tertiary XRT sorters for the ore sorting pre-concentration circuit in the dry process section of the plant, expecting to increase the tin content of the feed to the wet processing plant by 50%. 

A COM Tertiary XRT 1200 will be dedicated to the coarse size fraction. For the small particle sizes, two COM Tertiary XRT Fines sorters are equipped with the high-resolution TS100C ejection module, which delivers high precision in high-capacity applications. The module uses 90% less compressed air to eject the particles, reducing energy consumption dramatically and consequently significantly cutting operating costs while delivering a high-quality product.  

These XRT sorters feature TOMRA’s groundbreaking AI-powered OBTAIN™ software which leverages Deep Learning to deliver single-particle precision in high-throughput ore sorting – an industry first. It uses a Neuronal Network to identify the properties of each particle accurately and independently of the sorter’s capacity, achieving unparalleled precision and reliability in detection and ejection. In addition to enhancing the sorters’ performance, taking capacity, quality and recovery to a new level, OBTAIN™ will provide Andrada Mining with a wealth of detailed and accurate data, which will help them optimize the process with better-informed decision-making.