5.2.3 Equipment selection. Mill layout and equipment selection go hand in hand, in that the needs of the equipment with respect to the processes, flow direction, ease of operation and maintenance, etc. must be blended into the overall plan, with the ultimate objective of maximizing the productivity of each machine and minimizing handling.
UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Underground Mining Methods and Equipment - S. Okubo and J. Yamatomi ©Encyclopedia of Life Support Systems (EOLSS) 2. Strength of the hanging wall, footwall, and ore body. 3. Economic value of the ore and grade distribution within the deposit.
equipment selected. Moreover, equipment selection directly affects the pit design and production planning. In open pit mining, equipment selection is made according to many factors related to the ore and mining conditions. These factors can be qualitative and quantitative in nature. The main purpose of equipment selection is to choose the
Nov 03, 2011· A contractor can never afford to own all types and sizes of equipment. A contractor does not have to pay for the construction equipment but it must pay for itself by earning for the contractor more money than it costs. Factors Affecting the Selection of Construction Equipment 1. Standard type of Equipment.
time factor and engine factor were found to be the most sensitive input variables to the LCCA model. This leads to the conclusion t hat when deciding to replace a piece of equipment, engine efficiency should be a high priority due to the costs associated with the time factor, engine factor, and its subsequent annual usage. 17.
1.1.3 Active mining Once a mining company has constructed access roads and prepared staging areas that would house project personnel and equipment, mining may commence. All types of active mining share a common aspect: the extraction and concentration (or beneficiation) of a metal from the earth. Proposed mining projects
UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.
Design of a Hoisting System for a Small Scale Mine ... the mine does not have the proper equipment for transporting personnel and ore in the shaft. 3.1 Chosen solution: single drum hoist The selection of the best concept is much oriented on the mine size and the objectives of the project. The single drum concept is the simplest design.
eet selection problem is of striking importance in surface mining, where the cost of oper-ating the equipment over long-term schedules is anecdotally between 40-60% of the overall cost of materials handling (Alarie and Gamache 2002): robust equipment selection solutions is a driving
PDF | In the open-pit mines, in order to improve productivity, they used to large numbers of heavy equipment. Due to the huge investments involved, no mine can afford to have invested then its ...
di erent equipment types have attributes that can interact in a complex way with respect to productivity. In surface mining applications, the ESP addresses the selection of equipment to extract and haul mined material, including both waste and ore, over the lifetime of the mining pit.
is most effectively used in mining equipment selection to analyse the earth-moving system, some equipment selection solutions exist that use simulation models. Kannan et al. (2000) recognise that despite the complementary role of academic research and industry applied simulation models, a gap exists between the two: academia follow
Equipment Maintenance and Replacement Decision Making Processes Michael W. Gage This project contains recommendations for the decision making processes for support and production equipment maintenance and replacement for a large defense contractor. Recent literature has been reviewed to provide perspective on current trends in the field. A complete
Choosing a mining method. The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, economic, and social factors.
Start studying Chapter 5: Unit Operations of Mining. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ... drillhole factors, rock factors, service factors. ... What 4 factors affect equipment selection? performance, design, support, and cost.
Methods for Equipments Selection in Surface Mining; review A.Lashgari*, A.R.Yazdani, A.R.Sayadi Faculty of Engineering, Tarbiat Modares University, Tehran, Iran *E-mail address: [email protected] Abstract One of the principal costs in mine is related to purchase and application of equipment. Proper fleet
This edited volume includes all papers presented at the 22nd International Conference on Mine Planning and Equipment Selection (MPES), Dresden, Germany, 2013. Mineral Resources are needed for almost all processes of modern life, whilst the mining industry is facing strict requirements regarding efficiency and sustainability.
Lecture 4 MINE LOADING AND TRANSPORTATION Introduction Once the rock has been fragmented it needs to be moved to its final destination which could be a waste rock muck pile or ore's stock pile to feed the processing plant. From the working face materials are loaded with the use of any of the mucking units into a conveyance which carries it through horizontal, inclined, vertical or ...
INTRODUCTION TO MINING 1.1 MINING'S CONTRIBUTION TO CIVILIZATION Mining may well have been the second of humankind's earliest endeavors— granted that agriculture was the ﬁrst. The two industries ranked together as the primary or basic industries of early civilization. Little has changed in the
The selection of equipment for mining applications is not a well-defined process and because it involves the interaction of several subjective factors or criteria, decisions are often complicated and may even embody contradictions. Traditionally, procurement costs become
An Introduction to Material Handling Equipment Selection 1 Produced by the College-Industry Council on Material Handling Education (CICMHE) March 9, 1998 ... The major factors driving the design of a shelving and drawer storage system include the types of ... EQUPGUID.PDF ...
the costs of the mine. Equipment selection for surface mines C. Burt and Y. Chan. Surface mining Industry Modelling Objective function Constraints Implementation Extensions How a mine works ... The combination of all these factors can lead to a very large number of possibilities.
In the surface mining industry the equipment selection problem involves choosing a eet of trucks and loaders that have the capacity to move the materials speci ed in the mine plan. The optimisation problem is to select these eets such that the overall cost of materials handling is minimised. The scale of operations is such that although
MH Equipment Selection.....65 10. References.....67. 1. Overview of Material Handling . Material handling (MH) involves "short-distance movement that usually takes place within the confines of a building such as a plant or a warehouse and between a building and a transportation ...
HAULAGE TRUCK DUMP SITE SAFETY: AN EXAMINATION OF REPORTED INJURIES By Fred C. Turin,1 William J. Wiehagen,1 Jasinder S. Jaspal,2 and Alan G. Mayton2 ABSTRACT Dump site injuries occur in all major mineral industries. Working in elevated areas near an edge is a common hazard for operators of off-highway mobile mining equipment.
Mining industry response to the book continues to be incredible. Thanks in large part to the efforts by John Chadwick of the Mining Journal,, and many other members of the mining community, the Hard Rock Miner's Handbook has been distributed to over 113 countries worldwide. Web hits and downloads continue as students and
Many studies have been carried out on selection of mining equipments [1-5]. But there has ... Six Big Loss Category OEE Loss Category OEE Factor Equipment Failure Downtime Losses Availability (A) Setup and Adjustment ... • The physical environment under which mining equipment …
CHAPTER 11 Mining Technology The Federal Coal Leasing Amendments Act of 1976 charged OTA to assess the feasibility of the use of deep-mining technology on leased areas. With the passage of the Sur-face Mining Control and Reclamation Act of 1977 congressional interest in the study of deep underground mining technology shifted
A Review of Operations Research in Mine Planning Interfaces 40(3), pp. 222–245, ©2010 INFORMS 225 We now mention the progress from the traditional technique to advanced techniques that attempt to solve the entire mine scheduling problem as a mixed-integer program. Although the latter approach is newer and less tractable, there is promise ...
production capacity for an open-pit mine, caused by a large number of factors. For simplicity, researchers fix some factors and focus on few factors to make logical results. Understanding the factors causing performance variations can lead to improved production capacity in the rather complex and stochastic sys-