Tarred dolomite-magnesite unfired refractories for steel converters with top oxygen blow

Refractories ◽  
1964 ◽  
Vol 5 (5-6) ◽  
pp. 198-201
Author(s):  
A. N. Novikov ◽  
A. V. Nepsha ◽  
Yu. S. Rodgol'ts ◽  
A. I. Korzhenevskii ◽  
G. F. Gul'ev ◽  
...  
Keyword(s):  
Oxygen Blow

Temperature Prediction at the Blow End of the Converter via Control Model

2014 ◽  
Vol 1025-1026 ◽  
pp. 298-301
Author(s):  
Alexandre Furtado Ferreira
Keyword(s):  
Mathematical Model ◽  
Dynamic Control ◽  
Control Model ◽  
Mass Balances ◽  
Temperature Prediction ◽  
Oxygen Blow ◽  
Model Based ◽  
Gas Control ◽  
Prediction Capability

In the present work, a technique and model for temperature prediction at the blow end are briefly discussed, along with their limitations and perspectives for application. As a result of this analysis, a mathematical model based in heat and mass balances has been developed with a view to evaluating the possibility of improving this prediction capability. The study here presented focuses the development of a semi-dynamic control model in the LD-KGC converter (Linz-Donawitz-Kawasaki Gas Control Converter). The control model enables one to predict the temperature of the blow end by solving both the energy and mass equations. The inputs to the control model are the load data of the LD-KGC converter at the blow beginning and the collected data by the lance to 89% of oxygen blow. The results obtained in the present work were compared to the data measured in steelmaking. The semi-dynamic control model results agree well with data for LD-KGC converters.

scholarly journals Analysis of the vapor-oxygen oxidizer in the synthesis gas production from solid fuel

2018 ◽  
Vol 194 ◽  
pp. 01057
Author(s):  
Elena S. Popova ◽  
Alexander N. Subbotin
Keyword(s):  
Mathematical Model ◽  
Oxygen Concentration ◽  
Solid Fuel ◽  
Synthesis Gas ◽  
Gas Production ◽  
Low Grade ◽  
Universal Method ◽  
Oxygen Blow

A universal method of processing low-grade coals, as well as energy waste, is their gasification. A mathematical model of the conversion of coke, placed in a cylindrical capsule, through which a steam-oxygen blow is carried out, is considered. The determining parameter is the proportion of oxygen in the oxidizer. The values of the oxygen concentration in a steam-oxygen oxidizer are found to produce a synthesis gas with a predetermined percentage of combustible components.

Effect of a two-level oxygen blow on the lining of 130-ton converters

Refractories ◽  
1974 ◽  
Vol 15 (1-2) ◽  
pp. 30-34
Author(s):  
A. P. Kudrina ◽  
B. V. Nikiforov ◽  
A. T. Kitaev ◽  
V. I. Baptizmanskii ◽  
B. M. Boichenko
Keyword(s):  
Oxygen Blow

Life of refractory structures during intensive oxygen blow of the open hearth bath

Refractories ◽  
1968 ◽  
Vol 9 (9-10) ◽  
pp. 638-642
Author(s):  
Ya. A. Shneerov ◽  
V. Ya. Botvinskii ◽  
A. S. Gorovitskii ◽  
V. I. Shvedchenko ◽  
M. Ya. Medzhibozhskii ◽  
...  
Keyword(s):  
Open Hearth ◽  
Oxygen Blow ◽  
Refractory Structures

Development and Application of Control Model for Semi-Steel Steelmaking

2010 ◽  
Vol 154-155 ◽  
pp. 1137-1142 ◽  
Author(s):  
Xin Teng Liang ◽  
Yong Chen ◽  
Jian Hua Zeng ◽  
An Lin Li ◽  
Gui Jun Li ◽  
...  
Keyword(s):  
Prediction Model ◽  
Carbon Content ◽  
Real Time ◽  
Basic Structure ◽  
Static Model ◽  
Control Model ◽  
Oxygen Blow ◽  
Time Prediction ◽  
End Point ◽  
Auxiliary Material

According to the actual characteristics of semi-steel steelmaking of PZH steel, a static model for prediction of the oxygen blow amount and consumption of auxiliary material is established, and an end-point prediction model based on carbon content and temperature of sublance is given. This paper introduced the calculating principle and basic structure about above two models detailed. The results show that, the static model has certain accuracy and reliability of these models are illustrated by actual application.The static model might provide immediately the predicting optimum auxiliary material amount and the oxygen blow amount for operator, which direct the operation in time. The end-point prediction model might give real time prediction for the carbon content and temperature on BOF Endpoint, which has high hitting ratio.

A Second Look at Oxygen Blow in Melting Stainless Steel

JOM ◽  
1965 ◽  
Vol 17 (12) ◽  
pp. 1374-1378
Author(s):  
A. L. Ascik
Keyword(s):  
Stainless Steel ◽  
Oxygen Blow ◽  
Second Look
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