Experimental Research on the Qualitative Characteristics of Iron Ores and Ferrous Waste That Can Be Used in Blast Furnace Mixt Injection Technology

2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Raw Materials ◽  
Coal Dust ◽  
Production Costs ◽  
Iron Ores ◽  
Fine Grained ◽  
Experimental Laboratory ◽  
Injection Technology ◽  
Direct Use

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.

scholarly journals Experimental Research on the Qualitative Characteristics of Iron Ores and Ferrous Waste That Can Be Used in Blast Furnace Mixt Injection Technology

2019 ◽  
Vol 70 (11) ◽  
pp. 3835-3842
Author(s):  
Mihai Dumitru Tudor ◽  
Mircea Hritac ◽  
Nicolae Constantin ◽  
Mihai Butu ◽  
Valeriu Rucai ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Raw Materials ◽  
Coal Dust ◽  
Production Costs ◽  
Iron Ores ◽  
Fine Grained ◽  
Experimental Laboratory ◽  
Injection Technology ◽  
Direct Use

Direct use of iron ores in blast furnaces, without prior sintering leads to a reduction in production costs and energy consumption [1,2]. Fine-grained iron ores and iron oxides from ferrous wastes can be used together with coal dust and limestone in mixed injection technology through the furnace tuyeres. In this paper are presented the results of experimental laboratory investigations for establishing the physic-chemical characteristics of fine materials (iron ore, limestone, pulverized coal) susceptible to be used for mixed injection in blast furnace. [1,4]. The results of the experimental research have shown that all the raw materials analyzed can be used for mixt injection in blast furnace.

A Technical and Economic Analysis of Pig Iron Production

2010 ◽  
Vol 638-642 ◽  
pp. 3291-3296
Author(s):  
Edyta Kardas
Keyword(s):  
Blast Furnace ◽  
Economic Analysis ◽  
Raw Materials ◽  
Production Costs ◽  
Iron Production ◽  
Pig Iron ◽  
Blast Furnace Process ◽  
Furnace Process ◽  
Technical And Economic Analysis ◽  
Operation Parameters

Blast furnace work involves the flow of enormous volumes of raw materials. Modifications of the blast furmace operation parameters can bring about savings connected with materials consumption and also a reduction of production costs. The continuous technical-economic analysis of this process enables changes in the process to be observed by means of simple indexes. In this article, a technical-economic analysis of the blast furnace process is presented. It is based on the results of a Polish blast furnace with an overall capacity of 3200m3.

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.

Experimental Research at the Industrial Level for the Productionof Ferrous Agglomerates from Iron Ores and Ferrous Waste

2020 ◽  
Vol 70 (12) ◽  
pp. 4275-4282
Keyword(s):  
Blast Furnace ◽  
Experimental Research ◽  
Waste Recycling ◽  
Pig Iron ◽  
Iron Ores ◽  
Normal Functioning ◽  
Production Processes ◽  
Low Costs ◽  
Industrial Level

One of the basic issues to be solved during this period is to simultaneously neutralize and efficiently make use of the resulting waste from the production processes. The objective of the experimental research was to make a special ferrous agglomerate from a mixture of iron ores and ferrous waste and to test its use in the blast furnace. Research has shown a normal functioning of the blast furnace with this type of special agglomerate, obtaining a white pig iron with standardized structure and composition. The introduction of ferrous waste into the agglomeration is a long-term recycling solution with very low costs and with beneficial influences on the environment through the use of dusty waste. Keywords: blast furnace, ferrous sinter, ferrous waste, recycling, waste recovery

SELISIH BIAYA PRODUKSI SEBAGAI ALAT PENGENDALIAN MANAJEMEN PT INDO PUSAKA BERAU

2019 ◽  
Vol 3 (02) ◽  
pp. 397
Author(s):  
SAFITRI NURHIDAYATI ◽  
RIZKI AMELYA SYAM
Keyword(s):  
Raw Materials ◽  
Field Research ◽  
Analytical Tool ◽  
Production Costs ◽  
Raw Material ◽  
Labor Costs ◽  
Material Costs ◽  
Library Research ◽  
The Difference ◽  
The Cost

This study aims to analyze whether the difference that occurs in the cost of raw materials, direct labor, and factory overhead costs between the standard costs and the actual costs in PLTU LATI is a difference that is favorable or unfavorable. Data collection techniques with field research and library research. The analytical tool used is the analysis of the difference in raw material costs, the difference in direct labor costs and the difference in factory overhead costs. The hypothesis in this study is that the difference allegedly occurs in the cost of raw materials, direct labor costs, and factory overhead costs at PT Indo Pusaka Berau Tanjung Redeb is a favorable difference. The results showed that the difference in the cost of producing MWh electricity at PT Indo Pusaka Berau Tanjung Redeb in 2018, namely the difference in the price of raw material costs Rp. 548,029.80, - is favorable, the difference in quantity of raw materials is Rp. 957,216,602, - is (favorable) , the difference in direct labor costs Rp 2,602,642,084, - is (unfavorable), and the difference in factory overhead costs Rp 8,807,051,422, - is (favorable) This shows that the difference in the overall production cost budget is favorable or profitable. This beneficial difference shows that the company is really able to reduce production costs optimally in 2018.  

The Economics of Commodities and Commodity Markets

2018 ◽  
Author(s):  
Florian Ielpo
Keyword(s):  
Raw Materials ◽  
Commodity Prices ◽  
Essential Element ◽  
Commodity Markets ◽  
Production Costs ◽  
Demand And Supply ◽  
Spot Prices ◽  
Supply Shocks ◽  
The Business Cycle

This chapter covers the economic fundamentals of commodity markets (i.e., what shapes the evolution of the price of raw materials) in three steps. First, it covers the theories explaining why the futures curve can be upward or downward sloping, an essential element for commodity producing companies. The evolution of inventories and hedging pressures are the two dominant sources of explanation. Second, the chapter reviews the fundamentals of commodity spot prices: technologies, supply, demand, and speculation. Production costs draw the long-term evolution of prices, but demand and supply shocks can trigger substantial variations in commodity prices. Third, the chapter presents how commodity prices interact with the business cycle. Commodities are influenced by the world activity but can also have a material impact on it.

Structural Analysis and Optimization Design of Motor Hanging Seat Structural Based on Pro/ENGINEER

2013 ◽  
Vol 380-384 ◽  
pp. 39-42
Author(s):  
Shun Xi Gao ◽  
Shu Guo Zhao ◽  
Li Fang Zhao
Keyword(s):  
Structural Analysis ◽  
Objective Function ◽  
Economic Efficiency ◽  
Mass Production ◽  
Optimization Design ◽  
Raw Materials ◽  
Parametric Model ◽  
Production Costs ◽  
Practical Significance ◽  
Displacement Constraints

This paper establishes a parametric model on the motor hanging seat structure by pro / ENGINEER software, and then optimizes the structure of the hanging seat by the weight of the hanging seat as the objective function. Taking into account the stress and displacement constraints in the optimization process, the weight of the hanging seat is greatly reduced after being optimized. It is practical significance to save a large amount of raw materials for the mass production and to reduce production costs and create higher economic efficiency.

Experimental Research on Bonding Intensity of Iron Ores in the Sintering Process

2011 ◽  
Vol 391-392 ◽  
pp. 60-64
Author(s):  
Fang Yi Long ◽  
Sheng Li Wu ◽  
Juan Zhu ◽  
Yuan Du ◽  
Guo Liang Zhang
Keyword(s):  
South Africa ◽  
Liquid Phase ◽  
Experimental Research ◽  
Negative Correlation ◽  
Influence Factors ◽  
Iron Ores ◽  
Sintering Process ◽  
Different Types ◽  
Lower Porosity

The bonding intensity of four kinds of ores from Brazil, Australia and South Africa is researched in this study, and the influence factors are analyzed. The results show that, the ores of different types have apparently differences in bonding intensity, ores from Brazil and South Africa have high bonding intensity, while ores from Australia have low bonding intensity; The foundation of generation of effective liquid is adequate liquid phase fluidity and the lower porosity of core ore; The ratio of porosity of core ore and the index of liquid phase fluidity has negative correlation with the bonding intensity.

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