Open AccessThe Introduction of Clay Placer Dredging Preparation Technology
Author(s) -
M V Kostromin,
A A Yakimov
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/666/2/022076
Subject(s) - placer mining , dredging , geology , placer deposit , clay minerals , mining engineering , feature (linguistics) , geochemistry , oceanography , philosophy , linguistics
A large number of placer deposits in the Trans-Baikal Territory and other regions of the Far East and Siberia feature large amounts of clay (30% and more). In such conditions, their development and preparation are complicated. The dredger performance reduced by 10-15%, and metal loss during preparation, especially small and fine-grained gold, amount to 30-50% and sometimes even more. Therefore, we face a problem of weakening the cleat between mineral grains and clay particles acting as an adhesive. Besides, we need to develop efficient technology for clay and cemented placer deposits for dredging. We developed and introduced into production a clay sand weakening technology. It was used on a dredging site in the Zabaykalye territory and resulted in a significant improvement of the dredger performance and gold output.