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Study Of Geometrical Properties Of Blocks In A Jointed Rock Mass Using Statistical Geometry
By Violetta Pavlova
Knowledge of geometrical properties of blocks in a hard jointed rock among other things is of considerable importance for prediction of rock mass behavior and for its exploitation. This paper presents
Jan 1, 1992
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Recovery Of Metals From Copper Smelter Furnace Flue Dust
By H. H. Law
Large amounts of waste material in the form of flue dust are generated in the operation of copper smelter furnaces. As a result of increasingly stringent disposal, it has become important to develop m
Jan 1, 1992
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Pile Installation Overcomes Numerous Problems At Rocket Motor Component Manufacturing Facility - Introduction
By Jon H. Gould
This paper describes the following at the new Advanced Solid Rocket Motor (ASRM) nozzle manufacturing facility, which is being constructed inside an existing manufacturing facility: 1) generalized sub
Jan 1, 1992
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Kinetic Studies on the Deoxidation of Low Carbon Steel with Aluminum and Ferroaluminum
By Filippos Patsiogiannis
Laboratory size (4.5 kg) low carbon steel melts were deoxidized using Al and FeAl (33% Al), with and without synthetic fluxes, in alumina and zirconia crucibles. The dissolved oxygen, total oxygen, so
Jan 1, 1992
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Exciting Trends For An Ideal Mineral Process Simulator
By Kal V. S. Sastry
Mineral processing simulation has come a long way since its beginning about thirty years ago. With our increased understanding of mineral process systems and the advent of new software and hardware te
Jan 1, 1992
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Separated Kriging And Stochastic Simulation In Planning And Coal Content Production Control
By Simona Markic
With the aim of environment protection the program package HOMOGEN is used for realizing the planning and noxious components control in the coal produced. Using the program package PRIPREMA the divisi
Jan 1, 1992
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The Bureaucratic Merry-Go-Round
The bureaucracy in Victoria has worked against exploration and mining development. There is no doubt that the new Mineral Resources development Act has simplified matters on the mining side of the sys
Jan 1, 1992
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Effect Of Sodium Chloride On Flotation Of Dolomite From Apatite
By D. Ince
Flotation of dolomite from apatite was investigated, using dodecylamine hydrochloride or sodium oleate as the collector, with and without inorganic modifiers such as sodium chloride. Separation of do
Jan 1, 1992
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RI 9438 - Effectiveness of Iron-Based Fuel Additives for Diesel Soot Control
By H. William Zeller, T. E. Westpha1
The U.S. Bureau of Mimes evaluated the effects of two iron-based fuel additives on diesel particulate matter (DPM) emissions. The 5.6-L, six-cylinder test engine is typical of engines used in undergro
Jan 1, 1992
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Sidewall Fracturing in Coal Room and Pillar and Pillar Extraction Panels
In coal room and pillar, and pillar extraction panels, the sidewall conditions were investigated based on underground measurements and numerical simulations. Three-dimensional linear elastic model
Jan 1, 1992
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Phelps Dodge Chino Smelter Effluent Metal Recovery
By E. H. Partelpoeg, B. G. Belew
In 1990, the Chino Smelter completed the construction of a plant designed to recover metal values and water from smelter scrubber effluent. Equipment was installed to maximize effluent recycling and m
Jan 1, 1992
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IC 9331 Longwall Gate Road Roof Instability And Methods Of Control In The Lower Kittanning Coalbed Of Central Pennsylvania
By E. R. Bauer
This report presents the results of a cooperative study between BethEnergy Mines Inc., Ebensburg, PA, a central Pennsylvania coal mining company, and the U.S. Bureau of Mines to investigate longwall d
Jan 1, 1992
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Multiple Objective Optimization Of A Coal Grinding Process Via Simple Genetic Algorithm (SGA)
By R. K. Mehta
This paper presents the application of a simple genetic algorithm (SGA) to a coal slurry grinding process in order to find the optimum set of conditions under which the desired slurry properties can b
Jan 1, 1992
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Processing of Stannous Wolframite by Carbothermic ReductionlCarburisation
By D. C. Azubike
Wolframite (FeWO4) usually having cassiterite (SnO2) as a major impurity is a primary source of tungsten. Its direct reduction/carburisation with carbon in the temperature range 1000-1400°C, and with
Jan 1, 1992
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Pyrite Recovery Mechanisms In Coal Flotation
By S. K. Kawatra
In most operating coal-cleaning plants, a significant amount of pyrite is recovered in the froth during flotation of high-sulfur coal. Reducing the pyrite recovery first requires that the primary reco
Jan 1, 1992
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Post Start-Up Modifications to the Golden Bear Roaster
By S. McCalpine, W. Muir, P. J. Downey
"Golden Bear Operating Company Ltd. (GBOC) was a joint venture between Chevron Minerals Ltd. and North American Metals Corp. that was formed for the development of the Golden Bear Project. The mine is
Jan 1, 1992
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A Model for Floor Stability Analysis
By P. Tsang, S. S. Peng
Mine floor failures, such as floor heave and floor buckling, occur frequently in underground coal mines where soft mine floor exists. The types of failure can usually be classified into two categories
Jan 1, 1992
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Real-Time Process Control Using Object Oriented Expert Systems
By Lynn B. Hales, Randy A. Yncbausti, Rick Smith
Object oriented programming has been developed to model the way we think about the world. It allows higher levels of abstraction, generalization and classification than many other programming techniqu
Jan 1, 1992
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Measuring Departure From Gaussian Assumptions In Spatial Processes
By Mario E. Rossi
The concept of entropy is classical in thermodynamics and information theory. Its potential use as a measure of the ordering of a spatial system is discussed. Although entropy has been discussed previ
Jan 1, 1992
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Brown Coal Resource Evaluation - A Case Study of the Loy Yang Deposit
By Hibbert W. D, Lottrey A
The behaviour of coal in a process is a function of both the coal properties and the processing conditions. In the case of the Loy Yang coal deposit, extensive testing has been undertaken to determi
Jan 1, 1992