A Comprehensive Review on Blast Furnace

2018 ◽  
Vol 4 (11) ◽  
pp. 6
Author(s):  
Upendra Kumar ◽  
Avinash Patidar ◽  
Bhupendra Koshti
Keyword(s):  
Blast Furnace ◽  
Metallurgical Coke ◽  
Waste Plastics ◽  
Blast Furnaces ◽  
Liquid Hydrocarbons ◽  
Comprehensive Review ◽  
Global Performance ◽  
Flow Heat ◽  
And Control ◽  
Recycled Waste

The design and control of blast furnace (BF) ironmaking must be optimized in order to be competitive and sustainable, particularly under the more and more demanding and tough economic and environmental conditions. To achieve this, it is necessary to understand the complex multiphase flow, heat and mass transfer, and global performance of a BF. In this paper injection of alternative reducing agents via lances in the tubers of blast furnaces is discussed to reduce the consumption of metallurgical coke. Besides liquid hydrocarbons and pulverized coal the injection of recycled waste plastics is possible, offering the opportunity to chemically reuse waste material and also utilize the energy contained in such remnants.

Practical Problems in Blast Furnace Identification

1973 ◽  
Vol 6 (1) ◽  
pp. 29-34
Author(s):  
J P Norton
Keyword(s):  
Blast Furnace ◽  
Recent Work ◽  
Experimental Models ◽  
Empirical Models ◽  
Blast Furnaces ◽  
Slow Dynamics ◽  
Short Term ◽  
Factors Influencing ◽  
And Control ◽  
Stationary Behaviour

Recent work on the identification and control of steelworks blast furnaces is reviewed. The difficulties in obtaining experimental models are described; these include unmeasured variables, uneven cast interval, the very slow dynamics and the frequently non-stationary behaviour of the furnace. Factors influencing the form of the model are discussed. It is concluded that empirical models will prove useful in tracking short-term variations in furnace behaviour.

Effect and Control of Suspended Solids at the Blast Furnaces

2012 ◽  
Vol 260-261 ◽  
pp. 954-960
Author(s):  
Ayo Samuel Afolabi ◽  
Kazeem Oladele Sanusi ◽  
Ambali Saka Abdulkareem ◽  
Bada Samson Oluwaseyi
Keyword(s):  
Blast Furnace ◽  
Reverse Osmosis ◽  
Suspended Solids ◽  
Experimental Results ◽  
Blast Furnaces ◽  
Low Concentration ◽  
Steel Making ◽  
Rate Experiment ◽  
Effluent Discharge ◽  
And Control

In this study, investigations were carried out to find the best possible way of lowering the concentration of suspended solids at the blast furnace gas scrubbing systems which have long been a problem in steel making industries. The analyses of the experimental results showed that the Bulab 5615 that is currently being used is the best possible chemical polymer. At very low concentration the chemical has shown its ability to reduce suspended solids to desired levels. The three other chemicals used required a much higher dosing rate. Experiment was also conducted on controlling the conductivity and to solve the issues of high COD, ammonia and phenols using a pilot bio-plant and reverse osmosis. This work will make the adhering to the policy implemented in 2006 of zero effluent discharge of the Department of Water and Forestry and contribution towards saving our water.

EFFECT OF AIR HEATING ON CONCENTRATION OF NITROGEN OXIDES IN COMBUSTION PRODUCTS OF GASEOUS FUELS

2020 ◽  
Vol 0 (10) ◽  
pp. 35-40
Author(s):  
S.I. Gertsyk ◽  
◽  
I.V. Belyakov ◽  
Keyword(s):  
Blast Furnace ◽  
High Temperature ◽  
Nitrogen Oxides ◽  
Combustion Products ◽  
Blast Furnaces ◽  
Natural Gases ◽  
Gaseous Fuels ◽  
Air Heating ◽  
Formation Probability ◽  
Oxide Concentration

The formation probability of nitrogen oxides in combustion products of mixed blast-furnace and natural gases under different conditions of combustion was calculated. It has been found out that heating the air incoming into burners of high-temperature blast-furnaces sharply increases concentration of nitrogen oxides in combustion products (by 1.5-1.75 times). It was notices that in furnaces where temperature was less than 950-1000 °С, heating the air up to 400 °С increased NOx content in gases released to the atmosphere no more than by 20-23%, and oxide concentration was in limits of sanitary standards.

scholarly journals Arcobacter: an emerging food-borne zoonotic pathogen, its public health concerns and advances in diagnosis and control – a comprehensive review

2017 ◽  
Vol 37 (1) ◽  
pp. 136-161 ◽  
Author(s):  
Thadiyam Puram Ramees ◽  
Kuldeep Dhama ◽  
Kumaragurubaran Karthik ◽  
Ramswaroop Singh Rathore ◽  
Ashok Kumar ◽  
...  
Keyword(s):  
Public Health ◽  
Comprehensive Review ◽  
Health Concerns ◽  
Zoonotic Pathogen ◽  
Food Borne ◽  
And Control

Eine bibliometrische Analyse/PPC and machine learning A bibliometric analysis

2020 ◽  
Vol 110 (04) ◽  
pp. 220-225
Author(s):  
Matthias Schmidt ◽  
Janine Tatjana Maier ◽  
Mark Grothkopp
Keyword(s):  
Machine Learning ◽  
State Of The Art ◽  
Dynamic Environment ◽  
Production Planning And Control ◽  
Manufacturing Companies ◽  
Comprehensive Review ◽  
Planning And Control ◽  
Individual Task ◽  
The Individual ◽  
And Control

Produzierende Unternehmen stehen in einem dynamischen Umfeld vor der Herausforderung eine zunehmende Datenmenge effizienter zu verarbeiten. In diesem Zusammenhang werden häufig Ansätze des maschinellen Lernens (ML) diskutiert. Der Beitrag stellt eine umfassende Aufarbeitung des Stands der Forschung bezogen auf den Einsatz von ML-Ansätzen in der Produktionsplanung und -steuerung (PPS) bereit. Daraus lässt sich der Forschungsbedarf in den einzelnen Aufgabengebieten der PPS ableiten.   In a dynamic environment, manufacturing companies face the challenge of processing an increasing amount of data more efficiently. In this context, approaches of machine learning (ML) are often discussed. This paper provides a comprehensive review of the state of the art regarding the use of ML approaches in production planning and control (PPC). Based on this, the need for research in the individual task areas of PPC can be derived.

scholarly journals Proper MgO/Al2O3 Ratio in Blast-Furnace Slag: Analysis of Proper MgO/Al2O3 Ratio Based on Observed Data

Metals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 784
Author(s):  
Fengman Shen ◽  
Xinguang Hu ◽  
Haiyan Zheng ◽  
Xin Jiang ◽  
Qiangjian Gao ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Iron Ore ◽  
Social Benefits ◽  
Blast Furnaces ◽  
High Quality ◽  
Diagram Analysis ◽  
Furnace Slag

With the gradual depletion of high-quality iron-ore resources, ironmaking blast furnaces have gradually shifted to using high-content Al2O3 iron ore. Under this condition, the addition of MgO in the slag is adopted to alleviate operation problems caused by the high content of Al2O3. However, the proper value of the MgO/Al2O3 ratio for blast-furnace slag systems (Al2O3 = 8–25%) is not systematically studied. In this paper, we discuss the proper MgO/Al2O3 ratio on the basis of blast-furnace slag systems under different Al2O3 contents. On the basis of thermodynamics and phase-diagram analysis, it could be concluded that: (1) the MgO/Al2O3 ratio is not limited when Al2O3 in slag is less than 14%, (2) the MgO/Al2O3 ratio is required to be in the range of 0.40–0.50 when Al2O3 in the slag is 15–17%, and (3) the MgO/Al2O3 ratio should be 0.45–0.55 when Al2O3 in the slag is larger than 18%. The proper MgO/Al2O3 ratio value has been established in various industries, and it has achieved significant economic and social benefits.

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