Application Practice of Dry Discharge of Tailings from Baoshan Beneficiation Plant in Xinjiang and Comprehensive Utilization of Tailings
China has a huge amount of tailings,and if discharged arbitrarily,it will cover a large area of farmland,block rivers,etc.The traditional tailings pond treatment method is no longer suitable for the development of today's society,and effective methods must be adopted to solve the problem of tailings discharge.In order to solve the problem of tailings discharge and actively respond to and implement the national green development concept,Xinjiang Baoshan Beneficiation Plant borrowed the practical experience of dry tailings discharge from similar mines in China,combined with the actual production situation on site,and changed the original wet tailings discharge+tailings pond storage process to a fully dry tailings discharge process.That was,the tailings were concentrated and then filtered dry by a ceramic filter,and then comprehensively utilized.Through on-site application practice,the processing capacity of the ceramic filter is about 0.3 t/(h·m2),and the final moisture mass fraction of the filter cake is about 13%.After the implementation of the project,the production of dry tailings mineral materials is used for backfilling in mining pits,environmental treatment,brick making,and other aspects,greatly reducing the impact on safety and environmental protection.At the same time,the water recycling rate has been increased from 85%to over 95%,saving production water,reducing environmental pollution,solving the problems of comprehensive treatment of solid waste,occupying land,and promoting the comprehensive utilization of tailings resources.
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