Fly ash generation and collection

The fly ash produced from the burning of pulverized coal in a coal-fired boiler. Typically, coal is pulverized and blown with air into the boiler's combustion chamber. Where it ignites immediately generating heat and producing a molten mineral residue. Boiler tubes extract heat from the boiler, cooling the flue gas which causes the molten mineral residue to harden and form ash (Figure 1).

Modeling for the Steady State Production of Large Open Cast Mines- Case Study

When mining company gets the lease of a mineral deposit, the difficult is then how to mine and process that deposit the optimum way. The main problem facing managers or engineers who must select on equipment selection, mine plant site and long range scheduling is how one can optimize a property not only in terms of efficiency but also as to project duration.

Application of inverse theory in open pit blasting

  Blasting is a crucial part in mining operation. Proper blasting practice not only reduces the adverse effects like peak particle velocity but also improve the production and productivity. The blasting in open pit mine is controlled by number of parameters like spacing, burden, quantity of explosive etc. The production and productivity are measured by power factor, throw, and drop.

Choice of rock excavation methods for the Swedish deep repository for spent nuclear fuel

Choice of rock excavation methods will or may have implications for a number of issues like repository layout, long term and operational safety, environmental impact, design of and operation of transport vehicles and methodology for backfilling the repository before closure as well as effects on costs and schedules. To fully analyse the issues at hand related to selection of excavation methods, SKB organized a project with the objectives:

BLAST DESIGN

HOLE PATTERNS
Hole array is the arrangement of blastholes (both in plan and section). The basic blasthole arrays are single-row, square, or rectangular and staggered arrays. Irregular arrays are also used to take in irregular areas at the edge of a regular array.

USING SIMULATION ANALYSIS FOR MINING PROJECT RISK MANAGEMENT

Abstract

As a result of the current economic crisis, which led to metal prices fall, mining company managers have been encouraged to cut costs. Thus, improvement projects to reduce cost has become major interest in the Mongolian mining industry. 

OPERATIONS MODELING AND ANALYSIS OF AN UNDERGROUND COAL MINE

Abstract

In general, it is quite difficult to describe and model operations and conveyance systems precisely in underground coal mines because of geological components, poor visibility, unreliable installed facilities, and difficult work conditions.

Application of a Particle Swarm Algorithm to the Capacitated Open Pit Mining Problem

Abstract:

In the Capacitated Open Pit Mining Problem, we consider the sequential extraction of blocks in order to maximize the total discounted profit under an extraction capacity during each period of the horizon.

Economy - mining process English / French

Autogenous grinding: The process of grinding ore in a rotating cylinder using large pieces of the ore instead of conventional steel balls or rods.

Broyage autogène: Méthode de broyage utilisant un cylindre rotatif dans lequel de gros blocs de la matière à broyer remplacent les barres ou les boulets d'acier habituellement utilisés.

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MINING SUPPORT PACKAGE METALLIC ORES AND MINERALS

 This document is an overview of the environmental impacts of metal mining and processing.
It is general in nature and is provided as an introduction to some of the methods available to prevent, control, and mitigate these impacts. Metals are a valuable natural resource for many countries and a necessity for the economies of all nations that depend on metal products. However, unless proper controls are taken in mining and processing metals, serious environmental damage can result.