Study on Energy Utilization of High Phosphorus Oolitic Haematite by Gas-Based Shaft Furnace Reduction and Electric Furnace Smelting Process

2019 ◽  
pp. 777-785
Author(s):  
Hui Sun ◽  
Miaolian Bian
Keyword(s):  
Electric Furnace ◽  
Shaft Furnace ◽  
Energy Utilization ◽  
Smelting Process ◽  
High Phosphorus ◽  
Furnace Reduction ◽  
Furnace Smelting

Data-Driven Based Temperature Prediction of Ferroalloy Electric Furnace Smelting Process

2014 ◽  
Vol 668-669 ◽  
pp. 557-560
Author(s):  
Niao Na Zhang ◽  
Xu Liu
Keyword(s):  
Prediction Model ◽  
Electric Furnace ◽  
Control Process ◽  
Prediction Method ◽  
Data Driven ◽  
Smelting Process ◽  
Reconstruction Method ◽  
Temperature Prediction ◽  
Mean Square Errors ◽  
Furnace Smelting

Aiming at the features of nonlinearity, time delay, high dimension, big noise and others in the electric furnace smelting process, and the smelting process parameters some control process needs cannot be obtained by sensors, so the online parameter prediction method is of great significance for dynamic optimization control of system. In this paper, by using chaos theory and phase space reconstruction method, based on the idea of data-driven modeling, the temperature prediction model of crucible in the smelting process of ferroalloy electric furnace is established based on multivariate time series. Experiments show that the established data-driven prediction model can well predict the temperature change in the electric furnace smelting process, the root mean square errors of prediction are respectively less than 0.0715,and this has good guidance for practical production.

A Novel Process to Reduce SO2 Emissions During Electric Furnace Smelting of Sulphides

2021 ◽  
pp. 307-315
Author(s):  
D. G. Tisdale ◽  
S. J. Muinonen ◽  
M. D. Molinski ◽  
A. G. Stokreef
Keyword(s):  
Electric Furnace ◽  
So2 Emissions ◽  
Furnace Smelting

Study on Energy Utilization of High Phosphorus Oolitic Hematite by Different Ironmaking Technologies

2018 ◽  
pp. 175-183 ◽  
Author(s):  
Hui Sun ◽  
Miaolian Bian ◽  
Shichao Chen ◽  
Dongyang Ma ◽  
Zhicheng Cao ◽  
...  
Keyword(s):  
Energy Utilization ◽  
High Phosphorus

Smelting of Nickel Sulfide Concentrates by Roasting and Electric Furnace Smelting

2011 ◽  
pp. 199-214 ◽  
Author(s):  
Frank K. Crundwell ◽  
Michael S. Moats ◽  
Venkoba Ramachandran ◽  
Timothy G. Robinson ◽  
William G. Davenport
Keyword(s):  
Electric Furnace ◽  
Nickel Sulfide ◽  
Sulfide Concentrates ◽  
Furnace Smelting

Control of slag formation in the electric furnace smelting of ferronickel for an energy-saving production

2020 ◽  
pp. 125082
Author(s):  
Jun Luo ◽  
Guanghui Li ◽  
Mingjun Rao ◽  
Zhiwei Peng ◽  
Guoshen Liang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Electric Furnace ◽  
Slag Formation ◽  
Furnace Smelting

Thermodynamic Calculation of Hydrogen Chloride Generation in Blast Furnace Smelting Process

2014 ◽  
Vol 1033-1034 ◽  
pp. 1300-1304
Author(s):  
Bin Sheng Hu ◽  
Xiao Guang Liu ◽  
Yong Liang Gui ◽  
Kai Lv
Keyword(s):  
Blast Furnace ◽  
Sodium Chloride ◽  
Sulfur Dioxide ◽  
Nitrogen Dioxide ◽  
Hydrogen Chloride ◽  
Thermodynamic Calculation ◽  
Smelting Process ◽  
Blast Furnace Smelting ◽  
Furnace Shaft ◽  
Furnace Smelting

The generating pathways of hydrogen chloride in blast furnace smelting process may have two pathways: 1.sodium chloride and water react with phosphorus pentaoxide forming hydrogen chloride gas.2. Sodium chloride and water react with sulfur dioxide and nitrogen dioxide forming hydrogen chloride gas. Based on Thermodynamic calculation of hydrogen chloride generation in blast furnace smelting process, hydrogen chloride gas is generated in the upper part of blast furnace shaft ,the generating temperature main range from 300°C too 800°C.

Fundamental Study on Application of Gas-Based Shaft Furnace Direct Reduction Process to High Efficiency and Clean Utilization of Paigeite

2011 ◽  
Vol 233-235 ◽  
pp. 753-758
Author(s):  
Zhao Cai Wang ◽  
Man Sheng Chu ◽  
Zhuang Nian Li ◽  
Jue Tang ◽  
Qing Jie Zhao ◽  
...  
Keyword(s):  
Electric Furnace ◽  
Shaft Furnace ◽  
Direct Reduction ◽  
Reduction Process ◽  
Technical Problems ◽  
Direct Reduction Process ◽  
Comprehensive Utilization ◽  
Iron Concentrate ◽  
New Process ◽  
Reduction Swelling

The paigeite resources are abundant in China, but most of them are difficult to be utilized efficiently because of the current technical problems on industrial practice. It is necessary to perfected and innovated for comprehensive utilization of paigeite. The new process of gas-based shaft furnace direct reduction-electric furnace smelting separation provides a new way to efficient and clean comprehensive utilization of paigeite resources. In this paper, the pellets are prepared from boron-bearing iron concentrate. The mechanisms of roasting, the rules of reduction, and the properties of reduction swelling are also investigated. And then the pellets after reduction are smelted and separated in electric furnace to study the properties of products and analyze the feasibility and superiority of new technique. The results showed that boron-bearing iron concentrate is a kind of good raw material for pelletizing process. The properties of boron-bearing pellets after roasting for 20 min at 1200°C could meet to the requirements of gas-based shaft furnace direct reduction process, which exhibited fast reaction rate, good reduction swelling properties and high compressive strength both before and after reduction. With the new process, the efficient separation of boron and iron can be realized. The high boron grade and high activity of boron-rich slag obtained from new process can be used directly in boric acid manufacture. The new process shows excellent tech-economy feasibility to achieve efficiency and clean comprehensive utilization of paigeite resources.

Exergy assessment of a rotary kiln-electric furnace smelting of ferronickel alloy

Energy ◽  
2017 ◽  
Vol 138 ◽  
pp. 942-953 ◽  
Author(s):  
W. Rong ◽  
B. Li ◽  
P. Liu ◽  
F. Qi
Keyword(s):  
Electric Furnace ◽  
Rotary Kiln ◽  
Furnace Smelting

Electric furnace reduction of lead slags

1989 ◽  
pp. 65
Author(s):  
P. Hancock ◽  
J.G. Lenz ◽  
J.G. Peacey ◽  
R.C. Nutten
Keyword(s):  
Electric Furnace ◽  
Furnace Reduction
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