MiNing loSS And DiLutION calcUlATIOns fOR oPen Pit MINInG -

  • (PDF) Controlling operational dilution in open-pit mining

    2018-5-21 · When discussing open-pit mining, dilution and ore loss are sometimes assumed as fixed factors in geostatistical block models and cut-off grade

  • THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT

    2019-12-21 · Figure 1A mining block in an open pit and different types of dilution MINE VALUE DIMINUTIONS DUE TO DILUTION 1. One of the main consequences of dilution is the reduction of mill feed grade. Lower feed grade means less income. For marginal grade ore, dilution may reduce the grades to a degree that it becomes

  • Calculation and Management for Mining Loss and

    2013-12-24 · Calculation and Management for Mining Loss and Dilution under 3D Visualization Technical Condition. 331 by indirect method, %; C—Geological grade of extracted ore; C. 1—Ore output grade in the mining field. Loss rate and dilution rate shall be calculated by mid-section (stage) and pithead (mining field) according to

  • Estimation of Open Cut Mining Recovery and Mining

    2013-9-27 · Estimation of Open Cut Mining Recovery and Mining Dilution By Kent Bannister, ARMIT, FAusIMM (CP), CEO Kent Bannister Pty Ltd, (KBPL) Summary Loss and dilution of Mineral Resource grade occurs during mining activities. Mining Recovery and Mining Dilution estimates are a required consideration in the reporting of Ore Reserves for mineral projects.

  • Ore Loss and Dilution -- A Mine Engineering Study

    2018-7-1 · This document outlines a mine engineering study for the assessment of ore loss and dilution in an open pit operation. Some influences which

  • (PDF) MINING DILUTION AND MINERAL LOSSES

    2022-1-15 · Mining Dilution and Mineral Losses, An Underground Operator´s Perspective. As presented at the following conferences: 2018-06 Mining Tech

  • Coal Loss and Dilution – Drill and Blast | MEC Mining

    2017-11-21 · Coal Loss and Dilution – Drill and Blast. Posted by MEC Mining on November 21, 2017. Drill and Blast is one of the leading causes of coal loss in

  • MODELING BLAST MOVEMENT FOR GRADE CONTROL

    2015-1-22 · The minimum mining width is 15 m. Thus, it can be seen that blast movement and the associated mixing/dilution is a problem for grade control. Figure 1: Newmont Boddington Gold mine site location The outline of the paper is as follows. A description of the blast movement data provided by Newmont Boddington Gold is initially presented.

  • ECONOMIC ASSESSMENT AND MINE PRODUCTION

    capacity, gold price and dilution rate vary. Open-pit mining operations are long-term investments, and therefore, are subject to possible unexpected changes during the mine exploitation stage. This analysis is performed in order to appreciate the possible economic

  • Appendix E8 - OP Loss and Dilution

    2013-1-31 · Re: KSM - 2012 PFS Loss and dilution calculations 1. Introduction The KSM project is a large open pit copper-gold porphyry deposit. The ore-body is continuous within the cut-off grade shell. The pits will be mined with large shovels and trucks at an ore mining rate of 120,000 tonnes/day feeding the mill.

  • Estimating Mining Factors (Dilution and Ore Loss) in Open ...

    2007-1-1 · Dilution and ore loss have an important bearing on the success of open pit mining projects. Their impacts on production costs, revenues and production rate require that they are correctly modelled in the long-term mine plan. The estimation of dilution and ore loss is therefore an essential part of any Ore Reserve estimate or mine schedule.

  • Dilution and ore loss – A short practical guide

    2020-11-20 · Dilution and ore loss – A short practical guide . ... Most of the information in this whitepaper is relevant to open pit operations, however many of the concepts can be applied to underground situations . ... loss and dilution during the normal mining process , therefore the reporting of mined grade and tonnes ...

  • Calculation and Management for Mining Loss and Dilution ...

    The mining loss rate and dilution rate are the key indicators for the mining technology and management level of mining enterprises. Aiming at the practical problems such as the large workload but inaccurate data of the traditional loss and dilution calculation method, this thesis introduces the operating principle and process of calculating the loss rate and dilution rate at

  • The Importance Of Dilution Factor For Open Pit Mining ...

    Open Pit Mine Design, Planning, and Engineering ... Dilution increases the operating costs in the mill by increasing the tonnage of material to be milled. By better understanding the root causes of the dilution, quanitiying it, and planning accordingly, it can be controlled and reduced.

  • Mining method evaluation and dilution control in Kittilä

    2017-4-28 · Kittilä mine is a gold mine located in the Northern Finland. It began producing as an open pit mine but nowdays all the production comes from underground mine. The underground mining method was defined during the feasibility study with limited information. With the experience from the underground mining and more rock

  • Coal Loss and Dilution – Drill and Blast | MEC Mining

    2017-11-21 · Coal Loss and Dilution – Drill and Blast. Posted by MEC Mining on November 21, 2017. Drill and Blast is one of the leading causes of coal loss in an open cut coal mining operation. There are so many aspects that must be considered as part of the Drill and Blast Engineers design process and it is easy for an inexperienced or time constrained ...

  • MODELING BLAST MOVEMENT FOR GRADE CONTROL

    2015-1-22 · The minimum mining width is 15 m. Thus, it can be seen that blast movement and the associated mixing/dilution is a problem for grade control. Figure 1: Newmont Boddington Gold mine site location The outline of the paper is as follows. A description of the blast movement data provided by Newmont Boddington Gold is initially presented.

  • ECONOMIC ASSESSMENT AND MINE PRODUCTION

    capacity, gold price and dilution rate vary. Open-pit mining operations are long-term investments, and therefore, are subject to possible unexpected changes during the mine exploitation stage. This analysis is performed in order to appreciate the possible economic

  • Optimized open pit mine design, pushbacks and the gap ...

    2016-12-13 · OPTIMIZED OPEN PIT MINE DESIGN, PUSHBACKS AND THE GAP PROBLEM—A REVIEW 511 JOURNAL OF MINING SCIENCE Vol. 50 No. 3 2014 Fig. 3. Graph G with dummy node x0 and arcs added from the dummy node x0 to all other nodes. It is clear from the definition of our graph G that a graph closure in G represents a physically feasible pit,