Research on the evaluation and selection of the returned logistics operation model of iron and steel enterprise

For the iron and steel enterprises are CO2 emitters, the reduction of CO2 emission is the requirement to save energy, protect environment and sustainable development of the steel industry. This article research on iron and steel enterprises operation model based on the characteristics of the accessories resources. And on the analysis of the impact of CO2 emission factors, a mathematical model is built to reveal how the accessories resources influence the steel manufacture system's resource consumption and environmental impact.

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Classification and Characteristics of Predominant Refractories Used in Metallurgy

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.26.9 ◽

2018 ◽

Vol 26 ◽

pp. 9-21 ◽

Cited By ~ 4

Author(s):

Burcu Ertuğ

Keyword(s):

Raw Materials ◽

Chemical Properties ◽

Metallurgical Industry ◽

Iron And Steel ◽

Hot Gas ◽

Steel Making ◽

Reducing Costs ◽

Gas Conduction ◽

Selection Of ◽

And Chemical Properties

In the paper were reviewed mechanical and chemical properties of the modern refractories applied in the metallurgical industry and was provided their classification for the goal of optimal selection of refractories kind for specific technological conditions, reducing costs and solving the environmental issues. For various applications in the steel industry, in the furnace linings for iron and steel making, metal and slag transport, heat treatment furnaces and the flues for the hot gas conduction, refractories are widely used. The refractories can also be classified according to the raw materials, which are used in the preparation and to the predominant minerals after production. Nowadays, hardly any standard bricks are used and there is a trend towards using monolithic refractories. Due to the improvement in the service life and highly productive modern steel making processes, the consumption of refractories is reduced.

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Risk-based performance criteria for real-time reservoir operation

Canadian Journal of Civil Engineering ◽

10.1139/l91-005 ◽

1991 ◽

Vol 18 (1) ◽

pp. 36-42 ◽

Cited By ~ 18

Author(s):

Donald H. Burn ◽

Henry D. Venema ◽

Slobodan P. Simonovic

Keyword(s):

Real Time ◽

Reservoir Operation ◽

Compromise Programming ◽

Performance Criteria ◽

Programming Algorithm ◽

Operation Model ◽

Operational Strategies ◽

Risk Optimization ◽

Trade Offs ◽

Selection Of

Reliability, resiliency, and vulnerability criteria are formulated as risk-based performance measures for the evaluation of a real-time reservoir operation model. The reservoir operation model includes a multi-objective compromise programming algorithm to select, in real time, an optimal operating horizon for the reservoir operation. The utility of the risk-based performance criteria for comparing operational strategies resulting from the selection of different parameters for the compromise programming algorithm is demonstrated. Although trade-offs exist between the performance evaluators, it is shown that appropriate compromises can be reached between the conflicting modeling goals. Key words: reservoir operation, real time, risk, optimization.

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Study and Design of Chromium Ore Smelting Reduction Process for Producing Stainless Steel in a Converter

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.230-232.164 ◽

2011 ◽

Vol 230-232 ◽

pp. 164-167 ◽

Cited By ~ 1

Author(s):

Yan Liu ◽

Mao Fa Jiang ◽

De Yong Wang

Keyword(s):

Stainless Steel ◽

Raw Materials ◽

Reduction Process ◽

Raw Material ◽

Smelting Reduction ◽

Iron And Steel ◽

Chromium Ore ◽

Rational Production ◽

Iron And Steel Works ◽

Selection Of

This paper describes the concept of the construction of steelmaking shop, which is carried out as part of a modernization plan aimed at creating a 21st century environmental-friendly iron and steel works, designs the smelting reduction process of producing stainless steel crude melts in a 150 t converter and presents an outline of the equipment specifications and the conditions of operation, according to the blowing conditions of 185 t smelting reduction converter of No.4 steelmaking shop in Chiba Works of JFE Steel. In the future, a rational production system will be constructed by flexible selection of raw materials in response to changing stainless steel raw material prices and further improvement in productivity and quality, making the maximum use of functions of the equipment.

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Efficient utilization of Indian Coking Coal: Opportunities and challenges

Metallurgical Research & Technology ◽

10.1051/metal/2020017 ◽

2020 ◽

Vol 117 (2) ◽

pp. 209

Author(s):

Manish Kumar ◽

Hari Prakash Tiwari

Keyword(s):

Coke Quality ◽

Iron And Steel Industry ◽

Efficient Utilization ◽

Coking Coal ◽

Iron And Steel ◽

Indian Coal ◽

Coal Blend ◽

Steel Industries ◽

Selection Of

The preservation of coking coal and the reduction of coke cost are gaining much importance in iron and steel industry. An effort is being made worldwide to maximize the use of inferior quality of coking coal in cokemaking without sacrificing the coke quality to minimize the coke cost. In general, Indian coking coals contain lower content of vitrinite (≤ 50%) and higher content of ash (≥ 15%) as compared to imported coking coal. Indian coking coals have poor washability characteristics also. Therefore, for making coal blend for coke making, selection of an appropriate proportion of Indian coking coals with imported coking coals is a major challenge for Indian steel industries. Proper selection of Indian coal not only reduces the coking coal import but also minimizes the coal blend cost with added benefits of the increase in the captive mine life. This paper touches the opportunities and challenges for efficient utilization of Indian coking coal as a component in the coal blend to produce the desired quality of coke.

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