scholarly journals Numerical Simulation of Effects of Different Operational Parameters on the Carbon Solution Loss Ratio of Coke inside Blast Furnace

Processes ◽  
2019 ◽  
Vol 7 (8) ◽  
pp. 528 ◽  
Author(s):  
Kou ◽  
Zhou ◽  
Wang ◽  
Hong ◽  
Yao ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Gas Injection ◽  
Three Dimensional ◽  
Coke Oven ◽  
Oxygen Enrichment ◽  
Steel Scrap ◽  
Loss Ratio ◽  
Operational Parameters ◽  
Coke Oven Gas ◽  
Three Dimensional Model

Carbon solution loss reaction of coke gasification is one of the most important reasons for coke deterioration and degradation in a blast furnace. It also affects the permeability of gas and fluids, as well as stable working conditions. In this paper, a three dimensional model is established based on the operational parameters of blast furnace B in Bayi Steel. The model is then used to calculate the effects of oxygen enrichment, coke oven gas injection, and steel scrap charging on the carbon solution loss ratio of coke in the blast furnace. Results show that the carbon solution loss ratio of coke gasification for blast furnace B is almost 20% since the results of a model are probably only indicative. The oxygen enrichment and the addition of steel scrap can reduce the carbon solution loss ratio with little effect on the working condition. However, coke oven gas injection increases the carbon solution loss ratio. Therefore, coke oven gas should not be injected into the blast furnace unless the quality of the coke is improved.

scholarly journals Enhancement of Iron Ore Sinter Reducibility through Coke Oven Gas Injection into the Modern Blast Furnace

2013 ◽  
Vol 53 (8) ◽  
pp. 1372-1380 ◽  
Author(s):  
Elsayed Abdelhady Mousa ◽  
Alexander Babich ◽  
Dieter Senk
Keyword(s):  
Blast Furnace ◽  
Iron Ore ◽  
Gas Injection ◽  
Coke Oven ◽  
Coke Oven Gas ◽  
Iron Ore Sinter

Investigations of The Hybrid Effects of The Operational Parameters In The Radial Forging Process Based On The Validation of The Hardness Test

2022 ◽  
Author(s):  
Saeed Darki ◽  
Evgeniy Yurevich Raskatov
Keyword(s):  
Effective Strain ◽  
Three Dimensional ◽  
Hardness Test ◽  
Radial Forging ◽  
Operational Parameters ◽  
Three Dimensional Model ◽  
Temperature Changes ◽  
Forging Process ◽  
Specimen Tube ◽  
Radial Forging Process

Abstract In this study, considering all the parameters in radial forging and a three-dimensional model has been simulated using the finite element method. By implementing an elastoplastic state for the specimen tube, parameters such as friction type, residual stress distribution, effective strain distribution, material flow velocity and its effect on the neutral plate and the distribution of force in the die have been studied and analyzed. The effects of angle on the quality and characteristics of the specimen and the longevity of the die have also been obtained. Experimental results have been used to confirm the accuracy of the simulation. The results of the hardness test after forging were compared with the simulation results. Good agreement between the results indicates the accuracy of the simulation in terms of hardness. Therefore, this validation allows confirming the other obtained results for the analysis and prediction of various components in the forging process. After the validation and confirmation of the results through the hardness test, the hardness distribution was obtained by considering temperature changes and the effective strain on the specimen.

Atmospheric Tests of a Full Scale Gas Turbine Burner Fed With Blast Furnace Gas and Coke Oven Gas

2019 ◽  
Author(s):  
Edoardo Bertolotto ◽  
Alberto Amato ◽  
Li Guoqiang
Keyword(s):  
Blast Furnace ◽  
Natural Gas ◽  
Gas Turbine ◽  
Coke Oven ◽  
Full Scale ◽  
Flame Stability ◽  
Coke Oven Gas ◽  
Stability Range ◽  
Blast Furnace Gas ◽  
Inlet Conditions

Abstract The present paper describes atmospheric experimental tests of a new Ansaldo Energia full scale burner which was designed to burn fuels byproduct of steel making processes (mixtures of Blast-Furnace Gas (BFG) and Coke-Oven Gas (COG)), characterized by very low heating values (LHV∼2–3.5 MJ/kg) and very low stoichiometric air/fuel ratios (∼0.5–1 kg/kg). In particular, flame stability and blow-out margins were assessed for different burner variants and fuel compositions such as pure BFG, blends of BFG with increasing content of COG, and also a synthetic mixture of natural gas, hydrogen and nitrogen (NG/H2/N2). Except for pressure, all burner inlet conditions were simulated as in the actual gas turbine engine. The best performing burner among those tested demonstrated an excellent burning stability behavior over a wide operating range and stably burned pure BFG without any supplementary fuel. Furthermore, considering that in most operating concepts gas turbine engines for Ultra-Low BTU applications require a back-up fuel (such as oil, propane or natural gas) to ignite and ramp up or to perform load-rejections, the present atmospheric tests also assessed maneuvers to switch from natural gas operation to syngas operation. Also in this type of dual-fuel operation the burner demonstrated a wide flame stability range.

Model Study of Shaft Injection of Reformed Coke Oven Gas in a Blast Furnace

2020 ◽  
Vol 34 (11) ◽  
pp. 15048-15060
Author(s):  
Ziguang Zhao ◽  
Xiaobing Yu ◽  
Yansong Shen ◽  
Yuntao Li ◽  
Hui Xu ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Coke Oven ◽  
Coke Oven Gas ◽  
Model Study

Influences of hydrogen-enriched atmosphere under coke oven gas injection on reduction swelling behaviors of oxidized pellet

2016 ◽  
Vol 23 (8) ◽  
pp. 1890-1898 ◽  
Author(s):  
Hong-ming Long ◽  
Hong-tao Wang ◽  
Zhan-xia Di ◽  
Tie-jun Chun ◽  
Zheng-gen Liu
Keyword(s):  
Gas Injection ◽  
Coke Oven ◽  
Coke Oven Gas ◽  
Oxidized Pellet ◽  
Reduction Swelling ◽  
Swelling Behaviors
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