relationship of sinter in blast furnace coke rate

Blast Furnace Coke Properties and - DiVA portal

2016-10-19 · blast furnace the reaction was limited by the diffusion rate. Coke degradation was therefore mostly restricted to the coke surface in the blast furnace. At a later EBF campaign, off-gas dust was sampled during operation with different iron-bearing materials. EBF process data were used to evaluate the relationship

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Factors affecting Coke rate in a Blast Furnace –

Factors affecting Coke rate in a Blast Furnace. satyendra; June 29, 2014; 4 Comments ; BF burden, BF gas, blast furnace, coke rate, reducing agent,; Factors affecting Coke rate in a Blast Furnace BF is a counter current reactor in which the reducing gas is produced by the gasification of the carbon of the BF coke with the oxygen of the hot blast injected via tuyeres in the lower part of the ...

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Recycling of Blast Furnace Dust in the Iron Ore Sintering ...

In iron ore sinter plants blast furnace dust and other fine-grained residues which are rich in iron or car-bon content are recycled. The carbon contained in the blast furnace dust can be used to replace coke ... is higher than the mass of coke breeze replaced. The rate of

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Effect of High Al2O3 Slag on the Blast Furnace Operations

blast furnace was considered from the evaluation of fluidity ... 3 sinter, ore, auxiliary material, coke, and pulverized coal that were used for the test operation. The oil coke with no ash content, having a high caloric value, was used at the rate of 50% of all coke to decrease the reduced agent rate (RAR) and the amount of slag to be ...

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Recycling of Blast Furnace Dust in the Iron Ore

Zinc in the charge of the blast furnace is mainly contained in the sinter. 16) The total amount of zinc in the charge is usually restricted to 100 g/t–150 g/t of hot metal produced 8) because zinc can form crusts in the upper part of the furnace and accumulates in the lining of the furnace which consequently deteriorates. 16,17) Zinc is also ...

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9.1.3 Alumina in Blast Furnace/Corex Burden

2017-9-8 · slag rate, reduced output and increased energy consumption through coke rate. Based on the above study, correlation of Alumina in Sinter with Blast Furnace carbon rate was conducted. As per the study, every 1% increase of Alumina in BF burden, carbon rate in Blast

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Reduction of Coke Rate from 428 kg/thm to 408 kg/thm

2018-6-14 · Blast Furnace Objective •Reduce the Cost of Hot Metal Iron Making Objective •Reduce the cost of Divisions Product Corporate Objective •Increasing the savings by INR 2000 Cr 60 % of Cost of Hot metal is incurred through Coke & Coal consumption in Blast Furnace 1 2 Reduction of Coke Rate will impact the Perceived Opportunity –Reduction of Hot

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(PDF) Blast Furnace Performance Under

2018-11-26 · Use of pellet gives rise to uniform bed permeability in comparison with iron ore or sinter. This leads to better gas–solid contact resulting in higher productivity at reduced coke and fuel rate ...

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Coke Rate - an overview | ScienceDirect Topics

Technological challenges will be in decreasing the coke rate by increasing the coal injection rate, developing an economic process to produce partially reduced pellets or sinter, developing a comprehensive fundamentally based control model of the blast furnace, and developing the requisite sensors to allow optimized operation.

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Coke Ovens-Sinter-BF-BOF Route | SAIL

2021-3-9 · Raw material ( ore, sinter , coke ) are screened before being charged into the blast furnace through conveyors or skip. Air for combustion in the blast furnace is blown from turbo blowers which are preheated in hot blast stoves to temperatures around 1300oC , which is then blown through tuyers into theblast furnace.

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Blast Furnace Coke Properties and - DiVA portal

2016-10-19 · blast furnace the reaction was limited by the diffusion rate. Coke degradation was therefore mostly restricted to the coke surface in the blast furnace. At a later EBF campaign, off-gas dust was sampled during operation with different iron-bearing materials. EBF process data were used to evaluate the relationship

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Blast Furnace operation: Thermal Control

2020-12-5 · If the hot blast temperature is lower than the aim for more than 4 hours then a fuel rate equivalent change is to be made to restore the thermal input. However if by reducing the blast moisture results in a flame temperature above 2250˚C then the coal rate or coke rate should be increased instead.

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Effect of coke reactivity and nut coke on blast furnace ...

2016-5-31 · Modern blast furnace operation with low coke rate and high injection rate causes a change in coke quality requirements. A discussion has arisen recently about highly reactive coke. Here, a theoretical analysis of influence of coke reactivity on the thermal reserve zone, direct reduction and carbon consumption in the blast furnace has been ...

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UDC 669 . 162 . 26 : 622 . 341 . 1-18 Blast Furnace ...

2012-9-14 · the degree of pre-reduction and how the coke rate, productivity, etc. of the blast furnace changes when pre-reduced ore is used in the blast furnace. Using natural gas for pre-reduction can help reduce the emission of carbon dioxide from the blast furnace process since natural gas is substituted for the coal used in the process. Therefore,

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(PDF) Blast furnace and metallurgical coke’s reactivity ...

Within the coke making industry, the ability to accurately predict the quality of the coke produced from a variety of global coal basins is critical in both coal selection and blast furnace control.

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Effect of coke rate and basicity on computed

2019-11-1 · 2.3. Effective thermal conductivity simulation. CT-simulation has been proved to be a valid approach to predict thermal behavior of iron agglomerates with complex porous structure .Referring to the medium size of sinter charged into the blast furnace and considering the trade-off between the high computational cost and the instrument capability, a computational domain of 25 mm 3 cube is used.

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Reduction of Coke Rate from 428 kg/thm to 408 kg/thm

2018-6-14 · Blast Furnace Objective •Reduce the Cost of Hot Metal Iron Making Objective •Reduce the cost of Divisions Product Corporate Objective •Increasing the savings by INR 2000 Cr 60 % of Cost of Hot metal is incurred through Coke & Coal consumption in Blast Furnace 1 2 Reduction of Coke Rate will impact the Perceived Opportunity –Reduction of Hot

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High sinter burden experiments in Belgium |

At Seraing, tests with low and high sinter burdens have shown a linear relationship between the percent of sinter charged and the coke rate, calorific value of top gases, and amount of flue dust produced. Experiments are compared with the 100-pct sinter burden practice at Dilling and Domnarvet.

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Iron Making in Mini Blast Furnace (MBF) - Industry.Guru

2021-3-8 · The products from mini blast furnaces are of the same quality as that of normal Blast Furnaces and are free of tramp elements - this is of particular advantage in steel making in mini steel plants. Use of 40 - 45% hot metal in EAF (Electric Arc Furnace) charge has thus become standard practice, which has helped to reduce the power consumption in Electric Arc Furnaces to 380 - 400

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Impact of operational parameters on fuel

In this regard, the system indicates the need to change the fuel rate (loaded fuel) based on changes in the fuel consumption rate of the blast furnace. In other words, the thermochemical model calculates the amount of carbon consumed at a certain point in time, which

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Blast Furnace Burden Preparation with

2020-5-6 · Blast Furnace Burden Preparation with Reference to High Ash Coke R. F. Jennings, A. M. Frankau THE primary objectives in iron smelting are high output, low coke, rate and smooth operation. The aspect of coke econonac is somewhat cotn-pleic »when working with an iron rich burden and a high ash coke since the ash of the coke contri-

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Blast Furnace operation: Thermal Control

2020-12-5 · If the hot blast temperature is lower than the aim for more than 4 hours then a fuel rate equivalent change is to be made to restore the thermal input. However if by reducing the blast moisture results in a flame temperature above 2250˚C then the coal rate or coke rate should be increased instead.

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Blast Furnace operation: 2011

2020-12-5 · Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.

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Alert Blast Furnace & Sintering (March 2016)

2016-4-1 · Graphitization of coke and its interaction with slag in the hearth of a blast furnace. K. Li, J. Zhang, Y. Liu, M. Barati, Z. Liu, J. Zhong, B. Su, M. Wei, G. Wang, T. Yang Coke reaction behavior in the blast furnace hearth has yet to be fully understood due to limited access to the high temperature zone.

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Journal of Chemical and Pharmaceutical Research, 2014, 6 ...

2020-7-10 · Using blast furnace gas to remove NO of sinter band flue gas over the copper-based catalyst ... such as blast furnace gas (BFG), coke oven gas (COG) etc. Blast furnace gas is one of the ... Coverage rate O(s)Coverage rate Fig.3 The relationship between temperature and species coverage on

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Technical Progress of Blast Furnace Ferromanganese ...

2017-11-13 · Technical Progress of Blast Furnace Ferromanganese Production in China Zhang Tangke Dianxin Ferromanganese Factory, Kunming, Yunnan, China ... limestone was replaced by the quicklime with coke rate reduced 21. ... into the sinter mixture instead of directly into the" Blast" Furnace. The Mn sinter produced was of 1. 8 terinary basicity and % MgO ...

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Application of High Ratio Coke Mixed Charging

2019-4-3 · above, the changes in blast furnace operation when the sinter ratio is changed were predicted using the 2-dimensional simulator. The effects of the sinter ratio and the coke mixed charging ratio were investigated for base operational parameters (productivity: 2.0 t-pig/ m3·d, coke ratio: 387.5 kg/t-pig, PCR: 89.1 kg/t-pig, blast rate: 7 780 ...

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Smelting practice of scrap addition in blast furnace

The recycling of scrap has attracted more attention in recent years, and scrap can be used as iron-bearing material to smelt hot metal. The smelting practice of blast furnace (BF) with scrap addition in China was investigated, with the types of scrap being small pieces of scrap, such as crushed materials, light and thin materials, and small compacts which were easy to be added into BFs.

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High sinter burden experiments in Belgium |

At Seraing, tests with low and high sinter burdens have shown a linear relationship between the percent of sinter charged and the coke rate, calorific value of top gases, and amount of flue dust produced. Experiments are compared with the 100-pct sinter burden practice at Dilling and Domnarvet.

Read More+

Impact of operational parameters on fuel

In this regard, the system indicates the need to change the fuel rate (loaded fuel) based on changes in the fuel consumption rate of the blast furnace. In other words, the thermochemical model calculates the amount of carbon consumed at a certain point in time, which

Read More+