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

scholarly journals Iron-Ore Sintering Process Optimization / Optymalizacja Procesu Aglomeracji Rudy Żelaza

2015 ◽  
Vol 60 (4) ◽  
pp. 2895-2900 ◽  
Author(s):  
M. Fröhlichová ◽  
D. Ivanišin ◽  
A. Mašlejová ◽  
R. Findorák ◽  
J. Legemza
Keyword(s):  
Iron Content ◽  
Iron Ore ◽  
Raw Materials ◽  
Size Composition ◽  
Sintering Process ◽  
Iron Ore Sintering ◽  
Iron Ore Sinter ◽  
A Charge ◽  
Iron Ore Concentrate

The work deals with examination of the influence of the ratio between iron ore concentrate and iron ore on quality of produced iron ore sinter. One of the possibilities to increase iron content in sinter is the modification of raw materials ratio, when iron ore materials are added into sintering mixture. If the ratio is in favor of iron ore sinter, iron content in resulting sintering mixture will be lower. If the ratio is in favor of iron ore concentrate and recycled materials, which is more finegrained, a proportion of a fraction under 0.5 mm will increase, charge permeability property will be reduced, sintering band performance will decrease and an occurrence of solid particulate matter in product of sintering process will rise. The sintering mixture permeability can be optimized by increase of fuel content in charge or increase of sinter charge moisture. A change in ratio between concentrate and iron ore has been experimentally studied. An influence of sintering mixture grain size composition, a charge grains shape on quality and phase composition on quality of the produced iron sinter has been studied.

Effect of the quality of the iron-ore-bearing raw materials and coke on the performance indices of blast furnaces at the Novolipetsk metallurgical combine

Metallurgist ◽  
2010 ◽  
Vol 54 (1-2) ◽  
pp. 3-13 ◽  
Author(s):  
I. F. Kurunov ◽  
V. N. Titov ◽  
V. L. Emel’yanov ◽  
A. M. Loginov ◽  
V. I. Basov ◽  
...  
Keyword(s):  
Iron Ore ◽  
Raw Materials ◽  
Blast Furnaces ◽  
Performance Indices ◽  
Novolipetsk Metallurgical ◽  
Metallurgical Combine

The Oxidizing Roasting and Reducing Melting of Titaniferous and Conversion Iron Ores

2017 ◽  
Vol 371 ◽  
pp. 117-120 ◽  
Author(s):  
Andrey N. Dmitriev ◽  
G.Yu. Vitkina ◽  
R.V. Petukhov ◽  
L.A. Ovchinnikova
Keyword(s):  
Chemical Composition ◽  
Phase Analysis ◽  
Iron Ore ◽  
Raw Materials ◽  
Pig Iron ◽  
Iron Ores ◽  
X Ray Diffraction ◽  
X Ray ◽  
Melting Temperatures ◽  
Conversion Iron

The chemical composition of pellets of various basicity from pig iron ore materials is described. The metallurgical characteristics (reducibility, strength, softening and melting temperatures) is analyzed. The micro X-ray diffraction phase analysis is made. Also the sinter of various basicity from titaniferous raw materials is investigated.

Early Complexes of the Tract “First and Second Island” near the Village of Tanatovо

2020 ◽  
Vol 7 (4 (28)) ◽  
pp. 131-139
Author(s):  
Sergei F. Tataurov ◽  
Irina V. Tolpeko
Keyword(s):  
Bronze Age ◽  
Iron Ore ◽  
Raw Materials ◽  
Stone Tools ◽  
Early Bronze Age ◽  
Late Neolithic ◽  
High Quality ◽  
The Impact ◽  
The Village

As part of the study of the early stages of settlement of the Middle Irtysh region, the multilayered monuments of the tract “First and Second island” near the village of Tanatovо, Muromtsevsky district of Omsk region. Based on the study of ceramics and stone tools, complexes of the late Neolithic - early bronze age belonging to the artyn and Catherine cultures and the Stepanov type of monuments were identified. Specific features of stone processing are described for each stage. Artyn stone processing was characterized by high-quality raw materials and the technique of chipping plates. At the stage of Catherine's culture, the quality of raw materials significantly deteriorates, and the use of local raw materials (swamp iron ore) is noted. In stone processing, there is an increase in the share the technique of chipping flakes. At all stages, the tendency to minimize the impact of the shortage of stone raw materials is well recorded.

Transport Costs and Trade Volumes: Evidence from the Trans-Atlantic Iron Trade, 1870–1913

2015 ◽  
Vol 75 (1) ◽  
pp. 95-124 ◽  
Author(s):  
Kris Inwood ◽  
Ian Keay
Keyword(s):  
North America ◽  
Iron Ore ◽  
Raw Materials ◽  
Pig Iron ◽  
Transport Costs ◽  
Coking Coal ◽  
Freight Rates ◽  
Shipping Costs ◽  
The Cost ◽  
The Relationship

We use newly compiled evidence on inter- and intra-continental shipping costs to investigate the relationship between transportation and trade for trans-Atlantic iron markets from 1870–1913. Although we find a surprisingly weak connection linking ocean freight rates to British exports, after controlling for endogeneity and measuring all costs associated with inter-continental pig iron shipments and the intra-continental assembly of raw materials, the importance of transportation strongly asserts itself. The cost to transport pig iron across the Atlantic, and the cost to transport iron ore and coking coal within North America, were important determinants of the volume of British exports.

scholarly journals Quality of Coke used in Blast Furnace Process – Analysis of Selected Parameters

2019 ◽  
Vol 1 (1) ◽  
pp. 602-609
Author(s):  
Edyta Kardas ◽  
Pavlína Pustějovská
Keyword(s):  
Blast Furnace ◽  
Alternative Fuels ◽  
Raw Materials ◽  
Process Analysis ◽  
Coal Dust ◽  
Quality Parameters ◽  
Pig Iron ◽  
Blast Furnace Process ◽  
Furnace Process

Abstract The basic economic goal of pig iron process is to produce a finished product at the highest possible quality and at the lowest possible cost. The quality of pig iron depends on the quality of raw materials used in the process, quality of fuels and process parameters. The cost of fuel is one of the basic component of cost of pig iron production. Therefore, consumption of fuels should be minimized while maintaining its high quality. The main technological fuel of this process is blast furnace coke. Very often, cheaper alternative kinds of fuels are used in the form of finer sorts of coke or alternative fuels (e.g. coal dust). However, they can be used only in a limited amount. The aim of the paper is the assessment of the selected quality parameters of stabilized coke used in the blast furnace process and the comparison of their values with requirements.

scholarly journals Development of the method to operatively control quality of iron ore raw materials at open and underground extraction

2018 ◽  
Vol 5 (5 (95)) ◽  
pp. 13-19 ◽  
Author(s):  
Albert Azaryan ◽  
Andrey Gritsenko ◽  
Annait Trachuk ◽  
Dmitriy Shvets
Keyword(s):  
Iron Ore ◽  
Raw Materials ◽  
Control Quality

scholarly journals MINING AND METALLURGICAL COMPLEX OF UKRAINE: CURRENT TRENDS AND RESULTS

2021 ◽  
Author(s):  
Olha Honcharuk ◽  
Olexandr Riabko ◽  
Bohdan Overkovskyi
Keyword(s):  
Iron Ore ◽  
Success Factors ◽  
Raw Materials ◽  
Steel Production ◽  
Rapid Recovery ◽  
Pig Iron ◽  
Environmental Friendliness ◽  
Current Trends ◽  
Metal Products ◽  
High Level

The article analyzes the production and sales results of the enterprises of the mining and metallurgical complex of Ukraine (hereinafter MMC) in 2020, in the first quarter and for four months of 2021, as well as the preconditions that developed in 2019. It was determined that the results of production of MMC of Ukraine in 2019 were the worst for the entire period of the existence of independent Ukraine. The article analyzes the factors of ineffective work of metallurgical and mining enterprises in this period. In 2020, the situation was aggravated by the COVID-19 pandemic. Steel production declined, while pig iron and rolled products increased marginally compared to 2019. Exports of iron ore increased by almost a quarter, which means that the success of the ore segment partially offset the difficulties in the metallurgical sector. Success factors for the ore segment of the mining and metallurgical complex of Ukraine in 2020 were: rapid recovery of China after quarantine, effective measures to support the economy by China and European countries, high demand and prices for ore, rapid recovery of business activity and low level of stocks, which led to an increase in prices for metal products. It was determined that in the first quarter of 2021 the production of pig iron, rolled products, sinter increased compared to the same indicator in 2020, but the production of coke, steel and pipes decreased. The export of the main products of the mining and metallurgical complex has grown significantly. In April 2021, there was a drop in exports of iron ore and ferrous metals compared to March, but in general, for four months of 2021, the dynamics of exports is positive. The article examines positive trends (growth in prices for iron ore raw materials, demand and prices for steel and rolled products), as well as risks and threats that have arisen in the market and which will affect the efficiency of mining and metallurgical enterprises in 2021 and in the long term (a slowdown in the growth of the Ukrainian economy and countries-consumers of mining and metallurgical products, a high level of protectionism, insufficient protection of the domestic market from imports of metal products, the need for significant investments in improving the environmental friendliness of metallurgical production and increasing environmental costs.

scholarly journals Increasing the efficiency of blast-furnace smelting by improving the quality of iron ore materials

2019 ◽  
pp. 43-60
Author(s):  
A.S. Nesterov ◽  
L.I. Garmash
Keyword(s):  
Blast Furnace ◽  
Cast Iron ◽  
Chemical Composition ◽  
Coke Consumption ◽  
Iron Ore ◽  
Raw Materials ◽  
Blast Furnace Smelting ◽  
Blast Furnace Dust ◽  
Sinter Mixture

It is noted in the work that when mastering the technology of pulverized coal injection (PUT) at the metallurgical enterprises of Ukraine, it is necessary to intensify work, including research, in the direction of improving the quality characteristics of the sinter, the stability of its chemical composition and strength parameters. The analysis of the quality of iron ore raw materials used in sintering production in Ukraine and foreign countries is carried out. The requirements of international and domestic standards for the quality of raw materials and fuels, providing for the injection of large quantities of firearms into the furnace, are given. A methodology for determining the quality of raw materials developed in the HMI is described. The results of a study of the quality of iron ore raw materials according to the developed method are presented. Based on the analysis of the results of the research, requirements were developed for the quality of granular iron ore wastes and their rational amount in the composition of the sinter charge, and the process for the production of granules was developed. Recommendations have been developed on the use in the sinter mixture of a part of the granular components of secondary waste, which allowed to increase the content of secondary resources in the mixture. As a result, the chemical composition of the sinter was stabilized, its strength was improved, the yield of sinter of the second grade was reduced, the removal of blast furnace dust and coke consumption were reduced. Improving the quality of the sinter and the rational distribution of charge materials over the cross-section of the top of the blast furnace allows for self-renewal of the protective skull, to reduce the removal of top dust by 4.3 kg / t of cast iron, and to reduce coke consumption by 19.6 kg / t of cast iron. The developed measures make it possible to increase the competitiveness of products, even at the additional cost of preparing the sinter mixture for sintering.

scholarly journals Analysis of the scientific and technical level of production and the introduction of innovation technologies in the ore-dressing plant

2020 ◽  
Vol 208 ◽  
pp. 03018
Author(s):  
Maria Kompaniets ◽  
Andrey Plakhin ◽  
Maria Selezneva ◽  
Tatiana Kochergina ◽  
Maria Khokholush
Keyword(s):  
Iron Ore ◽  
Moving Objects ◽  
Raw Materials ◽  
Continuous Process ◽  
Economic Effect ◽  
Qualitative And Quantitative ◽  
Gps Navigation ◽  
Automatic Positioning ◽  
Ore Dressing

The process of obtaining iron ore at ore-dressing plant is a continuous process, so equipment failure at any stage leads to equipment downtime at all other stages. In this case, temporary shipment to the warehouse and from the warehouse of semi-finished raw materials leads to an increase in cost and a decrease in the quality of raw materials. These problems determined the purpose and objectives of the study of the possibilities of using a geographic information system to control moving objects in the main mine of the ore-dressing plant based on the system of automatic positioning using GPS or GPS/AVL (Automatic Vehicle Location). Based on satellite data, it is possible to generate various types of reports that allow to better control the situation - to analyze the qualitative and quantitative side of the ore mining process in quarries, to simulate the situation in order to avoid loss of working time. The basis of the study determined the economic effect of the introduction of GPS navigation in the main mine of the plant.

Sign in / Sign up

Export Citation Format

Share Document