19.07
2020

EUMICON CONFERENCE 26 – 28 SEPTEMBER 2018, VIENNA, AUSTRIA

Digitization, Artificial Intelligence or the Internet. The technological revolution will bring a series of new products and innovative services over the coming decades. These changes will also have a significant impact on the added value of the extractive industry and the related industries. Therefore, in partnership with the Austrian Federal Ministry for Sustainable Development and Tourism, Eumicon is organizing an international conference in Vienna during the Austrian EU Presidency – September 26-28, 2018.The conference is aimed at decision-makers in economics, science and commodity policy, as well as in the fields of raw materials and processing. The conference languages are German and English.
Working trips, an attractive social program and a formal dinner fulfill the conference proposal.E
Eumicon (European Confederation of Mineral Resources) is a joint platform of stakeholders from the public administration, the raw materials and science industries. Eumicon brings together 160 companies in the steel, mining and non-ferrous metals sectors with manufacturing and distribution centers in most parts of Europe.
Eumicon aims to encourage dialogue on raw materials and provide sustainable solutions.

25.10
2019

GEOTRADING BECOMES A PARTNER OF ROLLS-ROYCE FOR MTU PRODUCTS

The Bulgarian company signs a direct service agreement with the German company

Geotrading AD has become the exclusive partner of Rolls-Royce’s business unit Power Systems with its product and solution brand MTU for the mining industry in Bulgaria. The two companies have signed an agreement according to which the Bulgarian company will now serve as a direct service workshop partner. Geotrading AD will provide post-sales warranty and post-warranty servicing of MTU engines, manufactured by the Germany based business unit Power Systems of Rolls-Royce, the British technology group.

‘The signature of this agreement is an important milestone and a step forward in the strategic development of Geotrading AD. For several years, the company has functioned as a system integrator of MTU engines and has built a reputation for being a loyal and reliable partner capable of maintaining consistently high quality and having its eyes firmly set on a variety of prospects in the mining industry. We have thus earned the trust of a partner of truly global standing, Rolls-Royce Power Systems,’ Ivan Vutov, PhD, Chairperson of the Board of Directors of Geotrading AD, said.

Geotrading AD has its proprietary stationary service centre for mining equipment, which currently supplies, refits and provides maintenance and technical servicing to MTU engines under a contract signed with the German company based in Friedrichshafen. The service centre technicians and specialists of Geotrading AD have gained a wealth of experience, having integrated more than 8 engines into mining dump trucks. The new agreement will enable Geotrading AD to expand its base and offer supplies and servicing at several centres across Bulgaria. At the same time, under the system integration agreement concluded with Rolls-Royce Power Systems for MTU products and solutions, the mining industry service centre of Geotrading AD will continue to refit various mining equipment and machinery.

MTU is one of the leading brands for powerful diesel engines for the mining industry, seagoing vessels, locomotives and agricultural machines. Rolls-Royce’s business unit Power Systems, based in Germany is a leading manufacturer of engines for a number of the most highly productive mining activities the world over. Every day, MTU engines operate in the harshest conditions, having proven their robustness, reliability and excellent value for money. They increase the dynamic performance of equipment and reduce fuel, maintenance and technical servicing costs. Other advantages of MTU engines include low operational costs and noise levels.

MTU engines have long since proven their position in the mining industry for all emission levels and all types of mining equipment used both on and under the ground. They are best known for operating on high altitudes, extreme temperatures and heavy loads The MTU Series 1600 – 4000 engines have demonstrated outstanding performance in mining applications against remarkably low fuel consumption.

The product range, provided by Geotrading AD includes a large variety of engine capacities from 75 to 3 000 kW (101 to 4 023 hp), including the legendary engine in the 4000 series, which is recognised as the industry standard for high-power applications.

24.09
2019

RISK ASSESSMENT IN PROJECT PHASES

No. 6/2019

RISK ASSESSMENT IN PROJECT PHASES
Eng. Dobri Dobrev, dobri.iv.dobrev@gmail.com –
University of Mining and Geology „St. Ivan Rilski”

ABSTRACT
The article discusses methods for risk assessment and their applicability to the main stages of the life cycle of the main gas. These are described for the purposes of the method, its advantages and disadvantages. There are sample schemes for hazard and consequence analysis. Statistical models for processed data are proposed.
Keywords: risk assessment methods, event trees, gas pipeline

24.09
2019

Quantitative assessment of the main characteristics different types of underwater mining technologies

No. 6/2019

Quantitative assessment of the main characteristics different types of underwater mining technologies

assist. prof. Dr. Daniel Georgiev, daniel_georgiev@abv.bg
assoc. prof. Dr. Evgeniya Aleksandrova, jogeni@abv.bg
assist. prof. Dr. Simeon Asenovski, asenovski@gmail.com
eng. Dimitar Kaykov, dimitar.kaykov@gmail.com
prof. Dr. Ivaylo Koprev, ivokoprev@gmail.com –
University of Mining and Geology „St. Ivan Rilski”

24.09
2019

THEORETICAL CALCULATIONS OF TECHNOLOGICAL PARAMETERS OF THE ACTION OF ACID AND NON-ACIDIC WORKING SOLUTIONS ON THE WRINKLE ZONE OF THE PLATE

No. 6/2019

THEORETICAL CALCULATIONS OF TECHNOLOGICAL PARAMETERS OF THE ACTION OF ACID AND NON-ACIDIC WORKING SOLUTIONS ON THE WRINKLE ZONE OF THE PLATE
Karibaev Askar Amirkhanovich, 9999012@mail.ru
Doctoral student of the Mining and Geological University “St. Ivan Rilski “, Sofia

ABSTRACT
The purpose of the article is to theoretically study the process of exposure of acidic and non-acidic working solutions to the bottomhole formation zone. Theoretical calculations and graphical dependences are presented that allow determining and estimating the penetration depths and changes in the heating temperature of the fluid injected into the formation at a constant injection rate. The wave nature of changes in the concentration of a substance during filtration and mass transfer of flushing fluid in permeable formations has been established and studied. The results were summarized in tables, where the calculated values of the processing time of the PPP and the length of the propagation zone of the saturation front are presented. Analysis of the research results showed that with an increase in temperature, the processing time of the near-wellbore zone decreases depending on its length, especially if the length of the treatment zone is quite large.
KЕYORD: impact process, acid and non-acidic working solutions, bottomhole formation zone, penetration depth, heating temperature, fluid injected into the formation, injection rate, zone length, saturation front.

24.09
2019

INNOVATIONS AND INNOVATION ACTIVITY OF THE COMPANIES FROM THE EXTRACTIVE SECTOR OF THE BULGARIAN ECONOMY

No. 7/2019

INNOVATIONS AND INNOVATION ACTIVITY OF THE COMPANIES FROM THE EXTRACTIVE SECTOR OF THE BULGARIAN ECONOMY
Assoc. Prof. Dr. Dimitar Blagoev, e-mail: blagoev@unwe.bg
Industrial Business Department, Business Faculty, University of National and World Economy, Sofia, Bulgaria

ABSTRACT
We will not make a mistake if we say that innovation is one of the cornerstones for achieving competitiveness and a key factor for a sustainable competitive advantage of companies. Particularly relevant is their importance in recent decades, with the development of information and communication technologies, the Internet of things and other modern technologies. The implementation of modern technologies in the so-called “traditional sectors” of the national economy, as the extractive industries is key to modernising its processes and achieving a higher level of efficiency. The main purpose of the article is to trace the innovation activity of the companies in the extractive sector of the Bulgarian economy in comparison with the innovation activity in total for the economy and the perceived for the most innovative-startup companies.
Keywords: Innovation, Industry, Extracting Industry, Enterprise, Economy

24.09
2019

MULTI-PURPOSE GEOINFORMATION PORTAL OF THE UNIVERSITY OF MINING AND GEOLOGY “ST. IVAN RILSKI”

No. 7/2019

MULTI-PURPOSE GEOINFORMATION PORTAL OF THE UNIVERSITY OF MINING AND GEOLOGY “ST. IVAN RILSKI”
Assoc. Prof. asparuh kamburov, PhD, asparuh.kamburov@mgu.bg
Assoc. Prof. Ivan Mitev, PhD, ivan_mitev@mgu.bg
University of Mining and Geology “St. Ivan Rilski”, Sofia

ABSTRACT
This publication describes the development of an enterprise GIS portal and web-application, allowing user upload of borders of planned exploration areas (in various GIS formats) and analysis of conflict zones with existing sanitary-protective zones. All services are created with ESRI Enterprise 10.7.1. (Server, Portal, Datastore, Pro and Web AppBuilder), licensed for education and research in University of Mining and Geology “St. Ivan Rilski”. All data is acquired according the Access to Public Information Act. The web-application provides a convenient and interactive access to data for a wide range of users in the raw material industry, including mining companies, government institutions and researchers.
Keywords: GIS, ArcGIS, web application, cloud technologies

24.09
2019

Principles and approaches to detemining available technology for mechanized exploitation of oil wells

No. 7/2019

Principles and approaches to detemining available technology for mechanized exploitation of oil wells
Assist. Prof. PhD Lachezar Georgiev – lucho_sdng1@mail.bg
University of mining and geology „St. Ivan rilski“

ABSTRACT
The nature and conditions of applicability of the available technologies for mechanized exploitation of oil well are presented. The principles and approaches for determining effective technology for the mechanized exploitation of oil wells are examined.
Keywords: mechanized exploitation of oil wells, sucker rod pumps

21.09
2019

DISTRIBUTION OF UNDERGROUND WORKS

Assoc. Prof. Dr. Ivan Stoyanov Mitev is a lecturer at the University of Mining and Geology – Saint Ivan Rilski, Department of Underground Construction. In addition to teaching, his professional experience is related to participation in research teams in the fields of “Exploration, extraction and processing of minerals” and “Architecture, construction and geodesy”. He has professional experience as a designer and leader of research and development teams in the preparation of investment projects in the fields of “Underground construction”, “Geotechnics”, “Construction of buildings and facilities” and “Energy efficiency”. From the beginning of 2018 he was elected Executive Director of the Bulgarian Chamber of Mining and Geology.

You can reed the book HERE

 

 

21.09
2019

GLOBAL CLIMATE CHANGE – THE LESSONS FROM THE GEOLOGICAL HISTORY OF EARTH AND MODERN REALITIES

Issue  6/2019

Summary

The author deals with the problem of contemporary climate change in terms of paleoclimatology. The main factors and the complex relationships between them that affect the climate are examined. The author also looks at “global warming”, emphasizing that the suggestion that we can stop the current trend toward a slight rise in Earth’s temperatures is naive.