Technological Status and Tendency of Modern Blast Furnace

2013 ◽  
Vol 813 ◽  
pp. 192-195
Author(s):  
Fu Ming Zhang ◽  
Chao Zhen Cao ◽  
Xiang Long Meng ◽  
Lin Li
Keyword(s):  
Blast Furnace ◽  
Oxygen Enrichment ◽  
Pulverized Coal ◽  
Enrichment Ratio ◽  
Blast Temperature ◽  
Pulverized Coal Injection ◽  
Key Technologies ◽  
Coal Injection ◽  
And Function ◽  
Operation Cost

In this paper, the present status and challenges of blast furnace (BF) ironmaking technology are analyzed, and the developing tendencies of the modern BF ironmaking technology are mentioned. The significance and function of high blast temperature and oxygen enriched-pulverized coal injection for BF ironmaking are described. The key technologies of high blast temperature, oxygen enriched, and pulverized coal injection (PCI) are discussed and evaluated emphatically. Promoting blast temperature and improving oxygen enrichment ratio, as well as enhancing PCI rate which are important guarantee for saving fuel consumption, reducing operation cost, and realizing sustainable development. There are broad developing prospects of modern BF process under the condition of high blast temperature and low fuel ratio ironmaking technologies are applied.

Technological Development Orientation on Ironmaking of Contemporary Blast Furnace

2014 ◽  
Vol 875-877 ◽  
pp. 1138-1142
Author(s):  
Fu Ming Zhang ◽  
Chao Zhen Cao ◽  
Xiang Long Meng ◽  
Lin Li
Keyword(s):  
Blast Furnace ◽  
Technological Development ◽  
Injection Rate ◽  
Pulverized Coal ◽  
Enrichment Ratio ◽  
Blast Temperature ◽  
Pulverized Coal Injection ◽  
Coal Injection ◽  
Development Orientation ◽  
And Function

The present status and challenges of blast furnace (BF) ironmaking technology are analyzed, and the developing targets of the contemporary BF ironmaking process are mentioned. The significance and function of high blast temperature and oxygen enriched-pulverized coal injection for BF are described. The key technologies of high blast temperature is discussed and evaluated emphatically. Promoting blast temperature and improving oxygen enrichment ratio, as well as enhancing pulverized coal injection rate which are important guarantee for saving fuel consumption, reducing operation cost, and realizing sustainable development. There are broad developing prospects of contemporary BF process under the condition of high blast temperature and low fuel ratio ironmaking technologies are applied.

Simulation of Pulverized Coal Injection in a Blast Furnace

2006 ◽  
Author(s):  
Mingyan Gu ◽  
Zumao Chen ◽  
Naresh K. Selvarasu ◽  
D. Huang ◽  
Pinakin Chaubal ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Three Dimensional ◽  
Coal Mass ◽  
Pulverized Coal ◽  
Cfd Model ◽  
Mass Distributions ◽  
Pulverized Coal Injection ◽  
Fluid Flow Velocity ◽  
Coal Injection ◽  
Parametric Studies

A three-dimensional multiphase CFD model using an Eulerian approach is developed to simulate the process of pulverized coal injection into a blast furnace. The model provides the detailed fields of fluid flow velocity, temperatures, and compositions, as well as coal mass distributions during the devolatilization and combustion of the coal. This paper focuses on coal devolatilization and combustion in the space before entering the raceway of the blast furnace. Parametric studies have been conducted to investigate the effect of coal properties and injection operations.

Study on Separation of Chlorine in Coal in Combustion Process of Pulverized Coal Injection into B.F.

2014 ◽  
Vol 675-677 ◽  
pp. 578-582
Author(s):  
Bin Sheng Hu ◽  
Bo Zhang ◽  
Yong Liang Gui ◽  
Hua Lou Guo
Keyword(s):  
Blast Furnace ◽  
Air Temperature ◽  
Combustion Process ◽  
Pulverized Coal ◽  
Original State ◽  
Pulverized Coal Injection ◽  
Blast Furnace Gas ◽  
Coal Injection ◽  
Hcl Gas

In the combustion process of pulverized coal injection into blast furnace, the chlorine goes into the unburned pulverized coal is about 17%, the chlorine in the unburned coal keeps original state; The chlorine goes into the blast furnace gas is about 83%, and these chlorine stay as Hcl gas. Changes in air temperature and oxygen rate had no significant effect on the decomposition of chlorine in coal, resulting the rate of Cl into the blast furnace gas is difficult to increase significantly.

Sign in / Sign up

Export Citation Format

Share Document