Cement Manufacturers Association

28 During the optimisation process, the success lies when planning is also done continuously on a weekly basis (i.e., short term basis), for this is the actual phase where the objective of the plan is converted into actual production with desired qualities. The short-term optimisation of the resource should always be flexible enough to take care of micro mining constraints like lead distance variation, equipment scheduling, and other problems encountered on a day-to-day basis . d) To prepare Operation strategy and Extract plans of short-term planning, based on optimisation of model An extract plan comprises of –  Map (2D or 3D) with location of ramps, haul roads, benches, stockpiles, sumps, crushers, conveyors etc.  Quality and quantity of production and final ROM parameters.  Phasing sequence of extraction of mineral  Blending schedule for each extraction phase – Blended stockpile management.  Benches pit slopes and Mine limits  Identification of new area for exploration  Progressive and final mine closure areas  Any other information which management would like to add.  Updating of extract plans with Blast hole quality data, on a regular basis. e) To update the optimisation model To update block model with the regular quality and quantity inputs from production data, blast hole data and additional exploration data. This will ultimately update the optimisation model for deposit. 4. Effectiveness of Good optimisation plan for a mine The effectiveness of an optimization plan of a mine depend on several parameters. The main parameters in this are listed below: a) Minimise the human interventions and non- judicious adjustments or modifications b) Savings in mining costs c) Flexibility in mining operation d) Good mechanism for monitoring and effective updates in plan e) Most effective in extending the life by optimal use of all material available in resource. 5. Mine Planning with application of IT In today’s age, it has become essential to use tools of information technology (IT) for the optimisation detailed above, underlying its importance in the framework of any mining initiative. In general, the major reason for the success of IT tools in multiple fields is the ability of such tools to continuously monitor, collect and assess various kinds of data. This eliminates the possibility of erroneous and discrete steps of manual data collection and allows for continuous and accurate data collection with minimal expenditure. To credit these IT tools is also their ability to process large quantities of collected data in very short times, and their ability to provide this to the users in a comprehensible and easy to use format. Figure 2 An example of a Deposit Block Model, with CaO content mapping. Each block is color-coded as per its CaO content. cao Y Z Undefined 30,00 -> 32,00 32,00 -> 34,00 34,00 -> 36,00 36,00 -> 38,00 38,00 -> 40,00 40,00 -> 42,00 42,00 -> 44,00 44,00 -> 46,00 46,00 -> 48,00 48,00 -> 50,00 X