scholarly journals Development of scientific and methodological approaches to improve the efficiency of quarry transport operation

2020 ◽  
Vol 17 (6) ◽  
pp. 690-703
Author(s):  
A. N. Novikov ◽  
I. A. Novikov ◽  
N. A. Zagorodnij ◽  
A. S. Semykina
Keyword(s):  
Simulation Model ◽  
Information Technologies ◽  
Iron Ore ◽  
Raw Materials ◽  
Open Pit ◽  
Identification System ◽  
Temporary Storage ◽  
Transportation Process ◽  
Dump Trucks ◽  
Methodological Approaches

Introduction. The article discusses innovative and information technologies, an identification system, the purpose of which is to increase the efficiency of the operation of open pit transport. An algorithm for the operation of vehicles in a quarry in a simulation model has been developed. The method of calculating the rational amount of quarry transport for the transportation of iron ore from the place of extraction in the quarry to a temporary storage point is presented.Methods and materials. To manage the transportation process at GOK, it is required to use improved methods and methods for optimizing transport flows to reduce costs in the system “quarry-warehouse / processing plantproduction”, taking into account the dynamics of processes. To increase the efficiency of the operation of open-pit vehicles, the use of innovative and information technologies, an identification system is required. As a scientific and methodological approach, preliminary registration of open pit transport and fixing the time of loading and unloading processes, cargo movement are used. To organize the operation of the transportation process, it is necessary to develop an algorithm for the operation of open pit transport in a simulation model, which will allow collecting information about the state of all temporary storage points, the duration of the transportation process, etc. The implementation of the results of using the methodology for calculating a rational number of vehicles allows to achieve an effective raw materials from the quarry to a temporary storage point.Results. The authors have developed scientific and methodological approaches to improve the efficiency of mining transport operation.Conclusion. Research of the organization of work of the process of transportation of iron ore raw materials at the mining and processing plant has been carried out. It is concluded that it is necessary to develop scientific and methodological approaches to improve the operation of open pit transport. An algorithm for the operation of open pit transport in a simulation model has been developed, which allows taking into account the influence of the control and distribution system of dump trucks on the number of excavators and the timely delivery of dump trucks to storage points. The method of calculating the rational amount of quarry transport for the transportation of iron ore raw materials is presented.

scholarly journals Problems of a Transport Complex of Mining and Processing Plants

2021 ◽  
Vol 334 ◽  
pp. 02034
Author(s):  
Alla Semykina ◽  
Nikolay Zagorodniy ◽  
Yuliya Fomenko ◽  
Alexey Konev
Keyword(s):  
Production Process ◽  
Iron Ore ◽  
Raw Materials ◽  
Rational System ◽  
Material Costs ◽  
Transportation Process ◽  
Processing Plants ◽  
Transport Complex

The article considers problems of a transport complex of mining and processing plants. Requirements for quarry transport are presented. The production process and technological operations of the transportation process are considered. The ways of solving the problems of the transportation process are determined. It is established that when creating a rational system for transporting iron ore raw materials, it is possible to reduce material costs and losses during transportation.

scholarly journals THE FEATURES OF DEVELOPMENT OF AGRICULTURAL SECTOR OF ECONOMY OF UKRAINE IN THE CONDITIONS OF EURO INTEGRATION

2017 ◽  
pp. 395-406
Author(s):  
Ievgeniia Markova ◽  
Tetyana Shestakovska
Keyword(s):  
Information Technologies ◽  
Agricultural Development ◽  
Agricultural Sector ◽  
Raw Materials ◽  
Agricultural Science ◽  
Agricultural Resources ◽  
Agrarian Sector ◽  
Production And Consumption ◽  
Methodological Approaches ◽  
The Eu

The article substantiates the peculiarities of the development of the agrarian sector of the economy in the context of integration into the ELI, which confirms that the modern global society is undergoing transformational processes, in which Ukraine must take and takes part. It is determined that domestic agricultural science should promote more rational land use, create with the help of the latest information technologies the basis for increasing the range of agricultural products certified by the EU rules. The study of the positive experience of the EU countries regarding the use of raw materials for energy agricultural resources and the awareness of the objective need for finding alternative kinds of fuels and energy for Ukraine has given rise to the need to develop a bioenergy industry, which, in its turn will allow the introduction of an environmental ideology in the field of the production and consumption of bioenergy. The methodological approaches are determined, the theoretical conclusions are obtained which can beused in the process of development of the strategy of agricultural development of Ukraine in the conditions of European choice while preserving its own identity.

Scientific and Practical Procedures of Ensuring the Effectiveness of Environmental Measures during Exploitation of Iron Ore Deposits

2017 ◽  
Vol 22 ◽  
pp. 160-165
Author(s):  
Liubov Tymoshenko
Keyword(s):  
Economic Efficiency ◽  
Iron Ore ◽  
Underground Mining ◽  
Raw Materials ◽  
Environmental Safety ◽  
Ore Deposits ◽  
Open Pit ◽  
Iron Ore Deposits ◽  
Environmental Measures ◽  
Environmental Activities

The essence and expediency in the use of partial indicators of economic efficiency evaluation and selection of environmental activities in the development of iron ore deposits in different mining conditions of its exploitation is identified. Methodical approach to economic evaluation of the effectiveness of environmental measures during developing of iron ore deposits by using of index environmental and economic changes level of the environment, specific costs for environmental protection and economic intensity of violations of the environment was improved. The generalized indicator of economic efficiency of production ecologization at enterprises of mining and processing of ore raw materials is grounded. Levels of this indicator by the character of environmental activities of the enterprise, the stability of its interaction with nature and level on environmental-safety, are allocated. The methodical substantiation of evaluation criteria and methods for measuring the cost-effectiveness of environmental measures during exploitation of iron ore deposits and practical aspects of assessing the level of ecologization of open-pit and underground mining in relation to the economy of mining enterprises are given.

Assessment of maintenance schedule uniformity for Belaz dump trucks in Chernogorsky open pit mine

2018 ◽  
pp. 127-133
Author(s):  
E. A. Vakulin ◽  
V. A. Ivashkevich ◽  
E. I.I. Gnitsak ◽  
V. S. Baikin ◽  
S. P. Maslyukov
Keyword(s):  
Open Pit Mine ◽  
Open Pit ◽  
Time Loss ◽  
Maintenance Schedule ◽  
Monthly Average ◽  
Dump Trucks ◽  
Maintenance Personnel ◽  
Productive Time ◽  
Assessment Results

Uniform schedule maintenance of mining and haulage machines is one of the key conditions for increasing productive time of maintenance personnel and decreasing monthly average servicing time. Currently, Russian mines infringe regulated maintenance schedule aimed to improve output per shift. The loss of time of maintenance personnel and equipment as a consequence maintenance irregularity is never assessed. This article presents assessment results on maintenance schedule uniformity in terms of dump trucks BelAZ-7513 and BelAZ-7530 at Chernogorsky open pit mine, SUEK-Khakassia. A variant of calculation of time loss owing to inconsistent maintenance schedule for dump trucks is proposed. The loss of time by maintenance personnel and by mining/haulage machines is assessed. The fleet of dump trucks BelAZ-7513 and BelAZ-7530 is analyzed depending on overtime of operation between maintenance periods. It is recommended to improve uniformity of maintenance schedule for mining and haulage equipment.

METHODOLOGICAL APPROACHES TO SEARCH FOR RESERVES OF DECREASING COSTS IN THE BRANCHES OF AGRICULTURAL PRODUCTION

2019 ◽  
Keyword(s):  
Agricultural Production ◽  
Raw Materials ◽  
Cost Calculation ◽  
Cattle Breeding ◽  
Method Of Calculation ◽  
Prime Cost ◽  
Dairy Cattle Breeding ◽  
Methodological Approaches ◽  
Definition Of ◽  
Qualitative Characteristics

In this article approaches to search for reserves of decrease in cost of agricultural production are considered. The methods of cost calculation of dairy cattle breeding products used at the studied enter-prise are analysed, short characteristic of the standard method offered by the Ministry of Agriculture is given, and calculations of alternative options are also carried out. Today creation of accounting of a production unit is very important so that not only weight units must be considered in it, but also the quali-tative structure of products must be reflected. Definition of qualitative characteristics and technological properties by production of milk which depend on use purposes can be an example. The raw materials consumption on a unit of production and its quality and also firmness of storage depends on technologi-cal properties of milk. At calculation of prime cost taking into account qualitative characteristics for cal-culation milk in terms of basic fat content undertakes. The method of calculation of prime cost consider-ing qualitative characteristics is the most expedient as prime cost of 1 c of milk unlike the operating tech-nique is lower. In the article analytical methods of reserves calculation for decrease in prime cost taking into account various factors are proved. The revealed reserves will allow an enterprise to expand its in-vestment opportunities in the future, they will give an additional incentive of modernization of the worn-out machinery and equipment in branches of agriculture.

ABOUT THE CAPACITY OF THE RECEIVING HOPPER OF THE QUARRY CRUSHING PLANT

ASJ. ◽  
2021 ◽  
Vol 1 (49) ◽  
pp. 49-51
Author(s):  
I. Zharikov
Keyword(s):  
Carrying Capacity ◽  
Open Pit ◽  
Analytical Expression ◽  
Dump Trucks ◽  
Crushing Plant

The results of the analysis of the application of the methods of the theory of queuing for calculating the capacity of the receiving hopper of an open-pit crushing plant used in combination with a combined automobile-conveyor transport are presented. An analytical expression is given for calculating the capacity of the bunker, taking into account the minimum possible duration of the interval between unloading dump trucks into the bunker. The capacity of the receiving hopper of the crushing plant with a capacity of 4300 t / h was determined when working with dump trucks with a carrying capacity of up to 180 tons.

Adjustment of a technology of cast iron smelting in the blast furnace of jsc "ural steel" w ith a volume of 1232 см3 with charge h a v in g 95% share of Mikhailovskii GOK pellets

2021 ◽  
Vol 77 (7) ◽  
pp. 768-775
Author(s):  
I. F. Iskakov ◽  
G. A. Kunitsyn ◽  
D. V. Lazarev ◽  
А. А. Red`kin ◽  
S. A. Trubitsyn ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Iron Ore ◽  
Raw Materials ◽  
Raw Material ◽  
Material Base ◽  
Hot Metal ◽  
Charging System ◽  
Iron Smelting ◽  
Gas Consumption ◽  
A Charge

To use effectively internal raw material base, JSC “Ural Steel” accomplished I category major overhaul of the blast furnace No. 2. The main purpose of the overhaul was to design a rational profile which could ensure an ability to operate with a charge containing 95 % of Mikhailovskii GOK (mining and concentrating plant) pellets having basicity of 0.5 by CaO/SiO2. The blast furnace No. 2 having useful volume of 1232 m3, was constructed by design of Danieli Corus, the Netherlands, and was blown in on December 30, 2020. In the process of guarantee tests, step-by-step increase of Mikhailovskii GOK pellets (Fetotal = 60.5 %, CaO/SiO2 = 0.5) content in the charge iron ore part was being accomplished from 55 to 95.1%. Charging of the blend containing pellets in the amount of 55% of iron ore part, was done by charging system 4OOCC + 1COOCC (Ore - Coke) with filling level 1.5 m. Under conditions of pellets part increase in the blend, the charging system was changed to decrease their content at the periphery, to increase it in the ore ridge zone and make it intermediate between periphery and the ore ridge. At the pellets share in the iron ore raw materials 0.75 the charging system was used as the following: 3OOCC + 1COOC + 1COOCC, while at the content 95.1% the following charging system was used: 2COOC + 2COOC + 1COOCC. It was noted that in the period of guarantee tests the furnace running was smooth. The average silicon content in the hot metal was 0.70% at the standard deviation 0.666. Sulfur content in the hot metal did not exceed 0.024%, the blowing and natural gas consumption figures were 2100 m3/min and 11000 m3/min correspondently, oxygen content in the blowing 26.5%, hot blowing and top smoke pressure figures were 226.5 and 109.8 KPa correspondently. The productivity of the furnace was reached as high as 2358 t/day at the specific coke rate 433 kg/t of hot metal. After guarantee tests completion, the pellets content in the iron ore part was decreased gradually from 95 down to 50%. The decreasing was made by 5% in every 6 hours of operation. Application of the mastered technology of the blast furnace No. 2 with the increased share of pellets will enable to stably supply the blast furnaces No. 1, 3 and 4 by iron ore raw materials in the proportion of 30-35% of pellets and 65-70% of sinter.

Experimental testing of open pit dump trucks in operating conditions

2020 ◽  
pp. 530-542
Author(s):  
A. G. Zhuravlev ◽  
M. V. Isakov
Keyword(s):  
Power Plants ◽  
Experimental Testing ◽  
Operating Conditions ◽  
Open Pit ◽  
Dump Truck ◽  
Experimental Measurements ◽  
Complex Data ◽  
Special Unit ◽  
Operating Modes ◽  
Dump Trucks

The high importance of optimizing the operation of quarry transport is confirmed by the leading share of its costs in the total cost of mining. The current direction of optimization is the development and implementation of digital technologies for processing complex data on the parameters of transport vehicles. The solution of the above issues should be based on the results of scientific research on the collection and processing of information. Developed a set of techniques to perform experimental measurements of working parameters of mining dump trucks as part of a special unit experiments, and long monitoring measurements. A set of equipment for performing experimental measurements, as well as its installation on a dump truck is presented. The data of experimental measurements and a methodical approach to their analysis are presented. In particular, it shows the identification of operating modes of the power plant and the construction of the load diagram, the identification of elements of the transport cycle, etc. The approach to substantiation of innovative designs of power plants adapted to the conditions of a particular quarry is shown on the example of calculated schedules of energy consumption and reserve of recovery of braking energy. The proposed hardware-methodical complex is a research model for the development of methods for automated data collection and processing in the formation of elements of digital mining production.

INTEGRAL INDEX OF QUALITY OF IRON ORE RAW MATERIALS AND PREDICTING COMPOSITION OF PIG IRON

Metallurg ◽  
2021 ◽  
pp. 14-19
Author(s):  
P.I. Chernousov ◽  
S.N. Seregin ◽  
R.E. Grishin ◽  
Ya.S. Tsvily
Keyword(s):  
Iron Ore ◽  
Raw Materials ◽  
Pig Iron ◽  
Integral Index ◽  
Index Of Quality

ISSUES OF STANDARDIZATION AND IDENTIFICATION OF NATIONAL DAIRY PRODUCTS

2021 ◽  
Author(s):  
И.А. МАКЕЕВА ◽  
Н.В. СТРАТОНОВА ◽  
Н.С. ПРЯНИЧНИКОВА ◽  
З.Ю. БЕЛЯКОВА
Keyword(s):  
Dairy Products ◽  
Raw Materials ◽  
Dairy Product ◽  
Starter Cultures ◽  
Identification System ◽  
Customs Union ◽  
Technical Regulation ◽  
Specific Product ◽  
Mass Fractions ◽  
Milk And Dairy Products

Современный рынок молочной продукции претерпевает существенные изменения, в основе которых лежит тенденция на удешевление продукции. Российские молочные продукты, произведенные из классического сырья по традиционным технологиям, зачастую подвергаются фальсификации продуктами с пониженными массовыми долями жира и белка, заменой молочных компонентов и живых заквасочных культур вследствие отсутствия системы идентификационных характеристик. Реформой технического регулирования, проведенной в Российской Федерации в 2000 году, правила идентификации как способ отнесения продукта к определенной группе продукции посредством сопоставления его характеристик с установленными были законодательно закреплены на федеральном уровне. В настоящее время идентификация служит неотъемлемой частью оценки (подтверждения) соответствия продукции и является главным средством борьбы с фальсификацией. Критериями идентификации выступают регламентированные показатели продукта. Технический регламент Таможенного союза 033/2013 «О безопасности молока и молочной продукции» включает понятие «национальный молочный продукт», однако критерии идентификации этой группы продукции отсутствуют. Целью исследования был поиск уникальных характеристик российских молочных продуктов для их идентификации среди аналогичной продукции. В качестве метода был применен ретроспективный анализ литературы с глубиной поиска до 1930-х гг. Установлено, что в качестве критериев идентификации молочных продуктов использовали не только сырьевой и технологический признаки, но и упаковку. Выявленные критерии будут положены в основу формирования системы идентификации российских молочных продуктов. The modern dairy market is undergoing significant changes, which are based on the trend towards cheaper products. Russian dairy products made from classical raw materials using traditional technologies are often falsified by products with reduced mass fractions of fat and protein, replacing dairy components and live starter cultures due to the lack of an identification system. The reform of technical regulation carried out in the Russian Federation in 2000, the identification rules as a way of classifying a product as a specific product group by comparing the characteristics with the established ones were legally fixed at the federal level. Currently, identification is an integral part of the assessment (confirmation) of product conformity and is the main means of combating falsification. Identification criteria are regulated product indicators. The technical regulation of the Customs Union 033/2013 «On the safety of milk and dairy products” includes such a concept as «national dairy product», however, there are no criteria for identifying this group of products. The aim of the research was to search for unique characteristics of Russian dairy products and classical technologies that distinguish them from similar products. As a method, a retrospective analysis of the literature with a search depth of up to the 1930s was used. It was established that not only raw and technological characteristics, but also packaging were used as criteria for identifying dairy products. The identified criteria will be the basis for the formation of an identification system for Russian dairy products.

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