دورات هندسية

 

 

What Study Do We Need To Evaluate Any Mining Project?

النتائج 1 إلى 3 من 3
  1. [1]
    الصورة الرمزية alshangiti
    alshangiti
    alshangiti غير متواجد حالياً

    مشرف وإستشاري هندسة المناجم

      وسام مشرف متميز


    تاريخ التسجيل: Mar 2007
    المشاركات: 1,472
    Thumbs Up
    Received: 89
    Given: 8

    What Study Do We Need To Evaluate Any Mining Project?

    There are three levels of engineering studies during development from exploration through development and production, namely – conceptual, pre-feasibility and feasibility.

    A. Conceptual Study

    This refers to scoping study which is the first level and preliminary evaluation of any mining project. The accuracy will be low at + 50% and the drilling and sampling must be sufficient to define resource, flowchart, cost estimation and production schedule.

    This phase should clarify the following:

      • Technical parameters requiring additional examination or test work.

      • Capital and operating cost estimate.

      • Level of project development

    In this stage the result is not sufficient for reserve due to lower accuracy.

    B. Pre-Feasibility Study


    This is the second state which is based on some engineering basis at + 25% accuracy higher than scoping study.

    The objective to determine the following parameters:

      • Resources – reserve

      • Mine and process methods

      • Production rates

      • Mine life

      • Recovery rates

      • Capital cost estimate

      • Operating cost

      • Economic analysis and sensitivity

    In this stage, geology and mine engineering work has been conducted to define resource and reserve. Also sufficient test work has been completed and developed mining plant.

    C. Feasibility Study

    This stage is the last and most detailed stage in engineering process for evaluating a mining project for go/no go decision and financing purposes. This stage is based on the following:

    · Complete engineering and test work.

    · Accuracy is higher than pre-feasibility study - + 15%.

    · Detailed geological and mine engineering to define resource and reserve.

    · Completed all mining and processing parameters for pit slope design, hydrology, geotechnical, flow sheet development, hydrology, geotechnical, flow chart, equipment selection and sizing, etc.

    · Capital and operating cost estimates are derived from take-off and vendor quotes.

    · Economic analysis with sensitivities based on cash flow for the mine.

  2. [2]
    احمد عباس الخطيب
    احمد عباس الخطيب غير متواجد حالياً
    عضو فعال جداً
    الصورة الرمزية احمد عباس الخطيب


    تاريخ التسجيل: Jun 2008
    المشاركات: 160
    Thumbs Up
    Received: 0
    Given: 0
    موضوع جميل...وافادنى
    مشكوووووووور

    0 Not allowed!



  3. [3]
    مصطفى عبد النبى
    مصطفى عبد النبى غير متواجد حالياً
    عضو


    تاريخ التسجيل: Aug 2006
    المشاركات: 33
    Thumbs Up
    Received: 0
    Given: 0
    جزاكم الله خيرا

    0 Not allowed!



  
الكلمات الدلالية لهذا الموضوع

عرض سحابة الكلمة الدلالية

RSS RSS 2.0 XML MAP HTML