過濾的堆疊尾礦：研究經理的新行業指南.pdf

1、1MIT Global Summit on Mine Tailings Innovation,Sept 2024Filtered Stacked TailingsNew Industry Guide for Study Managers2MIT Global Summit on Mine Tailings Innovation,Sept 2024A Tale of Two Miners3MIT Global Summit on Mine Tailings Innovation,Sept 2024Why do we need collaboration?https:/u.osu.edu/engr

2、2367nuclearpower/files/2015/07/1-1x20sjo.jpgFukushima disaster4MIT Global Summit on Mine Tailings Innovation,Sept 2024Catastrophic tailings facility failures present an existential threat to mining companies5MIT Global Summit on Mine Tailings Innovation,Sept 2024Catastrophic tailings facility failur

3、es present an existential threat to mining companies6MIT Global Summit on Mine Tailings Innovation,Sept 2024The good news is that we can do better!7MIT Global Summit on Mine Tailings Innovation,Sept 2024Tailings Management ConsortiumAccelerate commercial availability of novel/unconventional tailings

4、 management capabilities/solutions:Reduce or eliminate catastrophic failure riskEnhance Social ValueFacilitate availability of cost-effective solutions8MIT Global Summit on Mine Tailings Innovation,Sept 2024Filtered Stacked TailingsIndependent Expert Panel recommended implementing the following to a

5、ssure physical stability:Eliminate surface water from the impoundment.Promote unsaturated conditions in the tailings with drainage provisions.Achieve dilatant conditions throughout the tailings deposit by compaction.GISTM Requirement 3.2 also refers to minimizing the volume of tailings and water pla

6、ced in external tailings facilities.9MIT Global Summit on Mine Tailings Innovation,Sept 2024Filtered Stacked Tailingshttps:/image.chitra.live/api/v1/wps/830a6ea/3ec87321-c9c6-48dd-b1bf-5331047a58c2/2/flsmidth-Karara2-1-1074x654.jpghttps:/ Global Summit on Mine Tailings Innovation,Sept 2024Challenges

7、Well proven at small scaleUsing small scale configurations and benchmarking to cost large projects conservativelyResult:high capital and operating costs?11MIT Global Summit on Mine Tailings Innovation,Sept 2024Filtered Stacked Tailings Guide Publicly available document sponsored by BHP and Rio Tinto

8、 Tailings Management Consortium.Guide for study managers(leads)evaluating filtered tailings systems,specifically pressure filtration technology,to produce a self-supported(“dry”)filtered tailings stack Summarizes the technology,key threats and opportunities It is not a detailed textbook12MIT Global

9、Summit on Mine Tailings Innovation,Sept 2024BHPRio TintoExternal ConsultantsOEMsContributorstailings dewatering technologistsnon-conventional tailings design engineerslarge-scale materials handling expertsfield automation expertsgeotechnical engineersenvironmental geochemistsassociate professors of

10、civil and environmental engineeringslurry rheologistswater,waste and tailings advisorsengineering managerssustainability business expertsR&D advisorsoperations and closuremetallurgical engineersoriginal equipment manufacturers13MIT Global Summit on Mine Tailings Innovation,Sept 2024Holistic Approach

11、The goal is to create a geotechnically and geochemically stable landform that meets closure requirements and minimizes the associated capital and operating costs by optimizing the upstream processes and mine plan.Define the stack(and site)closure objectivesinclude community impactDevelop a stack des

12、ignDefine the compacted stacked threshold moistureAssess filter cake transport requirementsto optimize the filter plant locationConduct filter performance testsSize and cost the filtration plantAlter upstream processes and mine plan to optimize filtration performance and costs14MIT Global Summit on

13、Mine Tailings Innovation,Sept 2024Key Point15MIT Global Summit on Mine Tailings Innovation,Sept 2024GapsCURRENT STATE OF PRACTISEFiltered tailings operations up to 35,000 tpd.Higher initial capital and operating costs than conventional tailings.WHERE WE WANT TO BEFiltered tailings operations up to 1

14、00,000 tpd or more.Significant risk reduction with acceptable capital and operating costs.KEY STEPSAppropriate costing modelsDemonstration of large-scale dewatering technologiesConstruction methodologies for large-scale facilitiesOngoing knowledge sharing16MIT Global Summit on Mine Tailings Innovati

15、on,Sept 2024SPAINMadrid:MadridPatersonCSWEDENStockholm:StockholmPatersonCUNITED KINGDOMCornwall:CornwallPatersonCUSADenver:DenverPatersonCAUSTRALIAPerth:PerthPatersonCCANADACalgary:CalgaryPatersonCSudbury:SudburyPatersonCCHILESantiago:SantiagoPatersonCSOUTH AFRICACape Town:CapeTownPatersonCJohannesburg:JohannesburgPatersonCThank youDigital copies of the guide available at:KnowledgeBaseF