Use of Logistic Approach in Optimizing the Rotary Kiln Run

2013 ◽  
Vol 483 ◽  
pp. 518-523
Author(s):  
Julius Lisuch ◽  
Jaroslav Gonos
Keyword(s):  
Rotary Kiln ◽  
Positive Impact ◽  
Raw Materials ◽  
Mining Industry ◽  
Innovation Process ◽  
Energy Output ◽  
Controlled Cooling ◽  
Treatment Area ◽  
Burning Process ◽  
Rotary Kilns

The strategic object of the innovation process in the raw materials extracting and treatment area is a sustainable development in all its components, particularly in the material, economic, environmental and energy. The paper presents a concrete contribution to the achievement of this goal by applying the principles of logistics in technical and technological optimization of rotary kilns operation with a positive impact in the energetic field especially. Rotary kilns are a long-term core technology of heat aggregates within the mining industry. Today there is a characteristic potential optimization exhaustion of classical optimization approaches and persistent lack of a major operation - high specific fuel consumption. The article presented a solution focused at eliminating the furnace jacket heat loss, which represents around 30% of the total energy output of the burning process and the largest energetic loss. The basis of the presented innovative solutions - the controlled cooling of the furnace jacket is the perfect knowledge of thermodynamics, hydro-mechanical and rheological flows in the process of burning in a rotary kiln and logistics optimization approaches application. The developed controlled furnace cooling jacket system delivers the performance and quality of the burning, reducing an overall energy consumption for the burning process in a rotary kiln by reducing rotary kiln shell losses and by use of the outgoing heat to the surroundings for the combustion air heating.

scholarly journals IMPROVING THE HEAT RECOVERY SYSTEM WITH STABILIZATION OF THE THERMAL PROCESSES OF ROTARY KILNS

2020 ◽  
pp. 114-121
Author(s):  
E.А. Geraskina ◽  
◽  
О.І. Khomenko ◽  
N.V. Danichenko ◽  
А.А. Khomenko ◽  
...  
Keyword(s):  
Rotary Kiln ◽  
Building Materials ◽  
Cooling System ◽  
Heat Removal ◽  
Side Surface ◽  
Utilization Efficiency ◽  
Controlled Cooling ◽  
Bypass Line ◽  
Entire Flow ◽  
Rotary Kilns

Abstract. The article is devoted to the problem of increasing the efficiency of using heating systems for industrial and municipal heat supply. The principles of rational cooling of furnaces and building materials are formulated, methods for stabilizing the thermal regime and conditions for the development of functional schemes for furnace units are determined. Rotary kilns under alternating of air temperature, wind speed, sunlight and precipitation lose from the side surface into the environment up to 30% of heat. The adverse effect of these factors negatively affects the thermal condition of the furnace unit with overheating in warm and overcooling in the cold periods of the year, and also reduces the lining stability and product quality. Characteristically, in order to maintain the necessary temperature at the inner surface of the furnace and extend the service life of the lining, the natural cooling of the side surface of the unit is assumed. This is an uncontrollable process with the above mentioned disadvantages. A radical solution to ensure the process requirements and improve utilization efficiency of fuel combustion energy is the organization of controlled cooling of the rotary kiln. One of the schemes providing the necessary heat removal from the furnace surface is a circuit with a recirculation channel. It is based on the reuse of the heating medium flow, the recirculation part of which increases with decreasing outdoor temperature. In the summer settlement mode, the system operates as a direct-flow system and the entire flow enters the consumer systems. In the winter billing period, air flows from the bypass line. Based on the above conditions, dependencies are established for finding the main parameters of the stabilizing cooling system of a rotary kiln, which is used for municipal heating.

The Imperatives of Beneficiation Law for Botswana’s Diamond Mining Industry and Its Implications for Foreign Investment Protection

2018 ◽  
Vol 33 (2) ◽  
Author(s):  
Femi Oluyeju ◽  
Kuda Tshiamo
Keyword(s):  
Economic Growth ◽  
Foreign Investment ◽  
Value Chain ◽  
Positive Impact ◽  
Mining Industry ◽  
Investment Protection ◽  
Goods And Services ◽  
Advantages And Disadvantages ◽  
Diamond Mining ◽  
Backward And Forward Linkages

This article seeks to interrogate the advantages and disadvantages of beneficiation law for Botswana’s mining industry and its implications for foreign investment protection. Furthermore, it argues that the enactment of beneficiation law could stimulate economic growth and development in Botswana. On a proper analysis of the potential of beneficiation law it seems plain that it may facilitate the integration, of among others, the cutting and polishing segments through the backward and forward linkages in the entire diamond value chain to move Botswana diamond industry a step further as a new and emerging jewellery manufacturing and retail center in order to derive maximum returns from the rough diamond production. Quite clearly, cutting and polishing of diamonds in Botswana is bound to promote employment which in turn will promote demand for goods and services that would have a positive impact on economic growth in Botswana.  The paper concludes that on a balance, the opportunities accruable from the enactment of this law far outweigh the downsides and will not in any way scare investors away as some have perceived it.

scholarly journals A New Face of Mining Engineer—International Curricula to Sustainable Development and Green Deal (A Case Study of the Wrocław University of Science and Technology)

2021 ◽  
Vol 13 (3) ◽  
pp. 1393
Author(s):  
Karolina Adach-Pawelus ◽  
Anna Gogolewska ◽  
Justyna Górniak-Zimroz ◽  
Barbara Kiełczawa ◽  
Joanna Krupa-Kurzynowska ◽  
...  
Keyword(s):  
Higher Education ◽  
Sustainable Development ◽  
Raw Materials ◽  
Research Question ◽  
Science And Technology ◽  
Mining Industry ◽  
Mining Engineer ◽  
European Institute ◽  
Innovation And Technology ◽  
Development Goals

The mining industry in the world has undergone a major metamorphosis in recent years. These changes have forced higher education to modify the curricula in a thorough way to meet the mining entrepreneurs’ needs. The paper’s scope is to answer the research question—how to attract students and implement Sustainable Development Goals (SDGs) in higher education in mining engineering? Based on the case of international cooperation carried out at the Faculty of Geoengineering, Mining and Geology of the Wrocław University of Science and Technology (WUST) within the framework of educational projects co-financed by European Institute of Innovation and Technology (EIT) and EIT Knowledge and Innovation Communities Raw Materials (EIT RM), the authors prove that the idea of sustainable development can be introduced into the system of teaching mining specialists at every level of their higher education (engineering and master’s studies), through developing their new competencies, introducing new subjects taking into account innovative solutions and technologies, or placing great emphasis on environmental and social aspects. Examples of new curricula show a good way to change into the new face of a mining engineer.

Analyzing taxpayer support for the Krasnodar Krai's agricultural sector

2021 ◽  
Vol 19 (8) ◽  
pp. 1457-1476
Author(s):  
Valentina L. ZAZIMKO ◽  
Nadezhda V. SEDYKH
Keyword(s):  
Regression Analysis ◽  
Agricultural Sector ◽  
Positive Impact ◽  
Raw Materials ◽  
Agricultural Products ◽  
Agricultural Producers ◽  
Krasnodar Krai ◽  
Correlation And Regression Analysis ◽  
Budget Support ◽  
The Government

Subject. This article analyzes the implementation of the government programme of the Krasnodar Krai, Development of Agriculture and Regulation of Markets for Agricultural Products, Raw Materials and Food. Objectives. The article aims to assess the measures of budget support for the agricultural sector of the Krasnodar Krai. Methods. For the study, we used a correlation and regression analysis of official statistics. Results. The article finds that the government programme of the Krasnodar Krai, Development of Agriculture and Regulation of Markets for Agricultural Products, Raw Materials and Food has a positive impact on the progress of production in the agriculture of the region, but it does not contribute to the growth of investment in the industry. Conclusions. It is necessary to move from targeted support for individual agricultural producers to the creation of a modern sectoral infrastructure.

THE IMPORTANCE OF INNOVATIVE ACTIVITIES AT THE MODERN STAGE OF ECONOMIC DEVELOPMENT ANNOTATION

2021 ◽  
Vol 4 (2) ◽  
pp. 79-86
Author(s):  
Obidkul Sattorkulov ◽  
◽  
Dilorom Mamadiyorova ◽  
Madina Obidzhonova
Keyword(s):  
Economic Growth ◽  
Economic Development ◽  
Positive Impact ◽  
Innovation Process ◽  
Economic Structure ◽  
Innovation Activity ◽  
Social Image ◽  
Innovation Infrastructure ◽  
New Development ◽  
Development Prospects

This article presents the main ways in which innovation can have a positive impact on economic growth, welfare of the population, economic structure, social image of society and various sectors of the economy, innovation opportunities, their application and development prospects. Key words:innovation, novation, science, new development, innovation, innovation infrastructure, innovation activity, innovation process.

scholarly journals EFFECTIVE USE OF ROTARY FURNACE SHELL HEAT

2014 ◽  
Vol 54 (6) ◽  
pp. 414-419
Author(s):  
Julius Lisuch ◽  
Dusan Dorcak ◽  
Jan Spisak
Keyword(s):  
Waste Heat ◽  
Cooling System ◽  
Raw Materials ◽  
Significant Proportion ◽  
Rotary Furnace ◽  
Cost Effective ◽  
Total Energy Expenditure ◽  
Heat Losses ◽  
Controlled Cooling ◽  
Effective Use

<pre><pre>Significant proportion of the total energy expenditure for the heat treatment of raw materials are heat losses through the shell of rotary furnace. Currently, the waste heat is not used in any way and escapes into the environment. Controlled cooling system for rotary furnace shell (<span>CCSRF</span>) is a new solution integrated into the technological process aimed at reducing the heat loss of the furnace shell. Based on simulations and experiments carried out was demonstrated a significant effect of controlled cooling shell to the rotary furnace work. The proposed solution is cost-effective and operationally undemanding.</pre></pre>

scholarly journals INNOVATIVE PROCESSES OF DEEP AND ENVIRONMENTALLY SAFE PROCESSING OF TECHNOGENIC RAW MATERIALS IN THE CONDITIONS OF NEW ECONOMIC CHALLENGES

2021 ◽  
Vol 13 (2) ◽  
pp. 224-237
Author(s):  
Valentin CHANTURIA ◽  
◽  
Irina SHADRUNOVA ◽  
Olga GORLOVA ◽  
◽  
...  
Keyword(s):  
Raw Materials ◽  
Mining Industry ◽  
Mineral Resources ◽  
Secondary Products ◽  
Resource Saving ◽  
Mineral Raw Materials ◽  
The Face ◽  
Environmentally Safe ◽  
Copper Zinc ◽  
Technogenic Raw Materials

Innovative processes of deep and complex processing of technogenic raw materials in the context of sustainable development of the mining industry and the economic challenges facing the mining industry should ensure the transition to a circular economy and the maximum use of natural resources. The article reflects the priority scientific and technological research on the involvement of technogenic mineral resources in efficient processing. Presented, developed at ICEMR RAS, including jointly with universities, research and production organizations and enterprises, modern innovative processes of deep and environmentally friendly processing of refractory mineral raw materials of complex material composition (tailings of enrichment of non-ferrous and noble metal ores, poor off-balance ores, slags ferrous and nonferrous metallurgy, sludge of metallurgical production) and hydro-mineral technogenic resources (acidic mineralized bottom-dump waters of mining enterprises of the copper-zinc complex of the Urals, saponite-containing circulating waters of diamond processing factories). Among other things, new directions in the field of selective disintegration of finely dispersed mineral raw materials based on energy effects and deep processing of slags are outlined; increasing the selectivity of enrichment processes; combined processing of technogenic raw materials; resource-saving processing of technogenic and hydro-mineral resources, obtaining secondary products from processing waste. It is shown that in the face of new economic challenges, Russia has sufficient scientific and technological potential in the field of deep and environmentally safe processing of technogenic raw materials in the form of developed and, to varying degrees, tested innovative resource-saving technologies that correspond to the world level, and in a number of technologies are superior to it.

scholarly journals The Effects of rural income project on silk exports and livelihood of smallholder producers in Gatsibo District, Rwanda

2021 ◽  
Author(s):  
Abiola Ogunlusi ◽  
Olanrewaju Olaniyan
Keyword(s):  
Textile Industry ◽  
Positive Impact ◽  
Raw Materials ◽  
Climatic Conditions ◽  
High Yield ◽  
Continuous Training ◽  
Cocoon Production ◽  
Income Status ◽  
The Impact ◽  
Smallholder Producers

Abstract Sericulture has been seen in Rwanda as an opportunity for increasing raw materials for the textile industry. Therefore, it has provided a new source of income, reduced unemployment and most likely to improve the livelihood status of poor sericulture smallholder producers by increasing their income earnings. The high yield in silk production has been pleasing due to the favourable climatic conditions for mulberry cultivation, sericulture has been seen as a potential tool to reduce poverty and also to generate foreign exchanges from exportation. The broad objective of this paper focuses on the impact of the livelihood status of smallholder producers in Rwanda. Purposive and simple random sampling techniques were employed in selecting 286 sericulture households’ farmers in Gatsibo district. Data for this study were analysed using descriptive statistics, inferential statistics, paired-samples t-test, cross-tabulation and chi-square test of independence. The results of this study showed clearly a significant improvement in the livelihood of the farmers. It was gathered that 82% asserted there are organized markets available for silk exportation. 77% affirmed an improvement in their income status. The average level of income per year from cocoon production among the farmers was estimated to be $ 227.59. It is of topmost priority for this program to continue because its effect has a very positive impact on the livelihood status of the beneficiaries. Farmers should be provided with continuous training, access to credits. If sustained properly it will resolve future challenges and springs more opportunities for farmers and likewise to the country through exports.

scholarly journals The Effects of rural income project on silk exports and livelihood of smallholder producers in Gatsibo District, Rwanda.

2021 ◽  
Author(s):  
Abiola Ogunlusi ◽  
Olanrewaju Olaniyan
Keyword(s):  
Textile Industry ◽  
Positive Impact ◽  
Raw Materials ◽  
Climatic Conditions ◽  
High Yield ◽  
Continuous Training ◽  
Cocoon Production ◽  
Income Status ◽  
The Impact ◽  
Smallholder Producers

Abstract Sericulture has been seen in Rwanda as an opportunity for increasing raw materials for the textile industry. Therefore, it has provided a new source of income, reduced unemployment and most likely to improve the livelihood status of poor sericulture smallholder producers by increasing their income earnings. The high yield in silk production has been pleasing due to the favourable climatic conditions for mulberry cultivation, sericulture has been seen as a potential tool to reduce poverty and also to generate foreign exchanges from exportation. The broad objective of this paper focuses on the impact of the livelihood status of smallholder producers in Rwanda. Purposive and simple random sampling techniques were employed in selecting 286 sericulture households’ farmers in Gatsibo district. Data for this study were analysed using descriptive statistics, inferential statistics, paired-samples t-test, cross-tabulation and chi-square test of independence. The results of this study showed clearly a significant improvement in the livelihood of the farmers. It was gathered that 82% asserted there are organized markets available for silk exportation. 77% affirmed an improvement in their income status. The average level of income per year from cocoon production among the farmers was estimated to be $227.59. It is of topmost priority for this program to continue because its effect has a very positive impact on the livelihood status of the beneficiaries. Farmers should be provided with continuous training, access to credits. If sustained properly it will resolve future challenges and springs more opportunities for farmers and likewise to the country through exports.

scholarly journals SUSTAINABLE DEVELOPMENT OF THE MINING COMPLEX OF THE MURMANSK REGION: MINIMIZATION OF MAN-MADE IMPACTS ON THE ENVIRONMENT

2021 ◽  
Vol 13 (2) ◽  
pp. 188-200
Author(s):  
Vladimir MASLOBOEV ◽  
◽  
Dmitry MAKAROV ◽  
Elena KLYUCHNIKOVA ◽  
◽  
...  
Keyword(s):  
Sustainable Development ◽  
Russian Federation ◽  
Negative Impact ◽  
Raw Materials ◽  
Mining Industry ◽  
The Arctic ◽  
Green Growth ◽  
Murmansk Region ◽  
The Russian Federation ◽  
Mining Complex

The Murmansk region is a region with the largest enterprises of the mining complex of the Russian Federation: KF JSC “Apatit”, JSC “Kola MMC”, JSC “Olkon”, JSC” Kovdorsky GOK”, JSC” North-West Phosphorus Company”, LLC”Lovozersky GOK”. They provide the majority of the country’s demand for phosphate ores, zirconium raw materials (baddeleyite), niobium, tantalum, and rare earth metals. In addition, the mining and processing of copper-nickel, iron and chrome ores, nepheline and ceramic raw materials, facing stone and building materials is carried out. At the same time, the activities of enterprises have a very negative impact on the environment. The issues of environmental safety in the extraction and processing of minerals, storage of mining waste in the Arctic zone of the Russian Federation are of particular relevance. The definition of sustainable development in relation to the mining industry is given. The concepts of available best technologies, circular economy, and “green growth” are considered from the point of view of their contribution to sustainable development. It is shown that the sustainable development of enterprises at the present stage is impossible without improving the environmental friendliness of production. The article analyzes the legislation of the Russian Federation and the practice of its application to identify mechanisms that promote sustainable development and eliminate barriers to the implementation of this concept in the mining industry. New technological solutions have been developed for mining enterprises of the Murmansk region, aimed at reducing aero-technogenic emissions, cleaning waste (mine) water, processing tailings of enrichment as man-made deposits, which allows both to minimize man-made environmental impacts and to increase the full use of mineral raw materials. Thus, the expediency of using the principles of “green growth” for the development of economic development policies in the Arctic is justified.

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