DonNTU   Masters' portal

Yuriy Makarenko

Institute of Mining and Geology

Department of Production Management

Speciality Management of mining enterprises

Simulation options for the development of mining on the example of mine PE Miner, 95

Scientific adviser: Professor, Ph. D. Alexander Makeev

Resume Abstract

Abstract

Content

• Introduction
• Topicality
• Research goals and objectives
• 1. Mine Planning
• 2. Integrated computer systems for planning mining operations in coal mines
• Conclusion
• List of sources

Introduction

At present, the coal industry is undergoing a crisis. In the coking coal market there is a huge deficit because of the recession in coal production. Therefore, the main goal of any existing coal mining company is increasing production or output in the coal market new profitable businesses with products that attract consumers with quality characteristics[1]. The prospect of coking coal brands K, CL, operating with valid norms ash and sulfur content in them is determined following conditions:

- the expected upturn in business activity should increase production using coking coal Donetsk, Lugansk, and others. Industrial areas;

- restructuring of the coal industry of Donbass involves disposal facilities for the extraction of coal due to the closure of mines that require reproduction of these facilities due to the reconstruction of existing mines and increase their power;

junction to new methods of strategic planning of development of mining operations at the existing mines.

Topicality

The critical state of modern Donbas coal industry has led to the termination of the work of a number of mines, a sharp decline production at existing mines in shortages of coal production. In the current situation is becoming particularly urgent strategic and operational planning of mining on the performance of enterprises. It is to such concerns mine emergency Miner - 95.

Research goals and objectives

The purpose of the master's work is to validate approaches to planning activities coal mine in modern conditions. To achieve these goals it is necessary to solve the following problems:

1. analysis of modern integrated computer systems for strategic planning in mining;

2. review of methods for making strategic decisions mining enterprises;

3. study the strategic planning process in the mine NWP Miner - 95 and make recommendations for its improvement.

1. Mine Planning

Mine Planning is one of the most important and difficult task, requiring multiple calculations of quantitative and qualitative indicators, flexible response to market conditions, operational adjustment plan in the implementation of the annual program. These requirements can only be met by automating the planning process.

Mine Planning - ongoing process that begins long before production begins and ends at the same time it is completed. Usually it consists of modeling and evaluation economically recoverable reserves, the selection of appropriate technology and equipment of the scheduling, financial and economic evaluation of the plan and the associated risks[2].

The effectiveness of the plan chosen production strategy will depend on the following primary factors:

• the location and distribution of mineral resources with respect to topography and elevation;

• direct operating expenses related to mining, enrichment and transformation into a commodity product;

• the initial and renewable capital to start and sustain production;

• indirect costs such as taxes and royalties;

• market conditions and capital constraints;

• political and environmental conditions.

The procedure used to create an optimal mining the timetable can be divided into three stages. First the order of extraction of reserves, or the sequence of production, logistical, financial, and other constraints. To create an optimal production schedule must first be defined sequence or the order of extraction of reserves of the deposit. Before the start of mining production planning all the work on the study and modeling of the deposit is usually already finished. In the course of this work is done a certain amount of pre- assumptions, including options for mining technology.

Mining project can be obtained by rough manual calculation after considering the plans and sections poustupnyh analytical or computer methods. Each method has advantages and disadvantages in Depending on the staff, but the choice of method is determined by the accuracy requirements and available funding. If the purpose of the study - a very preliminary assessment with little data available, it may be justified by manual methods. If the study should be a full-fledged basis for investment and development of the mining enterprise to the large amount of information collected, the requires full computer analysis. Computer analysis is carried out by means of special programs on the block model of the deposit, which is produced in the process of economic optimization phase mining stocks. The goal is to create a three-dimensional surface potential equal gains across the field. Each surface must be sufficiently isolated from adjacent to guarantee the necessary space for mining equipment.

2. Integrated computer systems for planning mining operations in coal mines

In the process of mining plan it has repeatedly iterative and consists of procedures:

• comparing the real situation with the schedule established in the design stage or during the previous adjustments;

• schedule adjustments, if required;

• the creation of the annual plan in the framework of long-term;

• create a quarterly (monthly) as part of the annual plan;

• create a weekly and daily plan within a month.

The purpose of planning the mining industry is to maximize the net present value and return on investment that can be obtained by extraction and sale prepared coal. The main tasks of planning: should strive to fulfill the deposit so that the cost of production of 1 ton of coal each year were minimal; should support the development of mining operations so that continuously provide access to all the slaughter and maximum ease of operation; it is vital to have the necessary provisions in the event of failure to confirm or revaluation reserves of the deposit; especially important to develop a logical and easy initial action program with the inclusion of training, installation and running of equipment, infrastructure production, to minimize the risk of delays in obtaining profits from this project; to verify the correctness of the development strategy of mining operations, equipment selection, etc. every time you need to check the condition of "what if" before you start the next stage of planning[4].

Features mine planning:

• the need for the allocation of work, not only in time but also in space, I am planning when objects are constantly in motion;

• low reliability of information on the distribution of the quality of the ore in the depths of

• the need for simultaneous consideration of mining and preparation works

The specialist performing planning should mentally put yourself in control now and try to adhere to the following principles: you need to clearly see the target to make a plan and be prepared for the changes made to it; It must be very sociable. If the plan is not clear to those who make decisions and execute them, it will be, or not made, or ignored; Always remember to be clear about what is going on with the volume of the rock mass in the process of planning the sequence of mining. Geometry should play a role for the scheduler arithmetic; planner must always remember what he is doing over time. The volume of the rock mass to be moved at the scheduled time. Proper use of time will determine the effectiveness of the project and operating costs; you must make a plan very real, that he became the target of the company, not just the ideas of its developer[3].

The system Datamine are powerful tools for the planning of open pit and underground mining. In contrast to the NPV Scheduler, this work is mainly carried out in the interactive design and composition and details of the plan generates the user, who can immediately assess the results of their work. Plan is made on accurate (subcell) model of the deposit. There are three planning functions:

• Interactive scheduling

• Imitation promote mining faces

• Optimization of ore averaging for the first two functions

The first part allows the user to interactively create a plan of the planned units for mining rock. They can be worked out at different times and sent by many directions of use (rock dump, PF, HF or ore stockpile). This can be controlled goals: average grade, the cost of production, while the equipment, etc. You can also optimize your plan according to one of the selected criteria. The following will detail the process of planning and is an example of such a plan. The second part enables the user mimic the contours of promoting mining faces at a predetermined distance with automatic calculation of all characteristics "mined" rock mass for a given period of time. The third function adds earlier that optimizes (method of linear programming) the mixture supplied from different faces for processing[5].

Vulcan - advanced software for the mining industry, allowing users to validate and organize the primary geological data, to translate them into dynamic three-dimensional models, get precise projects and mining plans. Vulcan makes it possible to compare different scenarios of production prior to mining. Vulcan plays a key role in the mining process, from the stage of exploration, geological modeling, design of mining operations, calculation of blasting and haulage to the drawing up of plans and schedules, plant closures and reclamation. Geologists can create and import data of drilling, to determine the geological zones, model ore bodies, use geostatistics to analyze spatial variables. The volcano can work with large amounts of data have many attributes, visually display them and quickly make complex calculations[6].

The powerful three-dimensional capabilities of Vulcan allow mining engineers to view, simulate and analyze the necessary data. A wide choice of tools to check block models, construction pits, cuts, and mines, control of the content of useful components, preparation of schedule and optimization can accelerate the adoption of important decisions and increase productivity in the daily challenges faced by mountain professionals.

Engineers who design open and underground mining can quickly create spatial models of quarries, mines, calculate volumes, mineral content, check slope angles, move the side portions being handled, change the parameters of haulage, expand and narrow areas of potential underground workings in order to find the optimal solution before the mountain works in accordance with the changing prices for products, equipment and energy, increase or decrease taxes, safety standards, equipment requirements and the requirements of the buyer.

Conclusion

According to the analysis of modern systems of planning of mining operations at coal mines, defined goals and objectives of the master's work. The study was carried out 3D model of the deposit. Comparing all the dependencies can formulate the best plan for the development of mining and decision-making routine work at the coal enterprises.

List of sources

1. Алексеева М. М. Планирование деятельности фирмы / М. М. Алексеева. – М.: Финансы и статистика, 2003. – 176 с.
2. Стратегическое планирование развития предприятия: Учебное пособие для вузов / В. И. Ляско. – М.: Издательство Экзамен, 2005. – 288 с.
3. Костюк І. С., Скаженік В. Б., Голубєва Н. М. Операційні стратегії функціонування вугільних шахт в кризових умовах // Современные проблемы управления производством. Тезисы докладов IY Международной научно-практической конференции. Донецк: ДонНТУ, 2009. – С. 176–178
4. Могильный С. Г., Шоломицкий А. А., Мотылев А. А. Развитие идей цифрового моделирования открытых горных разработок // Науковi працi ДонНТУ. Сер. гiрничо-геологiчна. Вип. 62. – Донецьк, 2003.– С. 23–33.
5. Официальный сайт Датамайн [Электронный ресурс].
6. Официальный сайт Мaptek [Электронный ресурс].