Modelling and Analysis of Oxygen Enrichment to Hot Stoves

• The paper presents some research work on applying the oxygen enrichment technique to hot stoves that was carried out in one European RFCS project. In the presented work, both theoretical and practical work was studied. A dynamic model was used to investigate the effects of oxygen enrichment on hot stoves' performance under the condition that only blast furnace gas was used as the fuel gas. The modelling results showed that SOE will enhance the combustion process in hot stoves by increasing hot blast temperature and shortening the on-gas time, which were further verified by industrial trials performed at an iron-making plant. In addition, CFD modelling was performed by simulating different oxygen levels and lance positions at the burner to avoid the hot spot formation during the combustion.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Maskinteknik -- Energiteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Mechanical Engineering -- Energy Engineering (hsv//eng)

Keyword

Blast furnace

CFD

dynamic model

hot blast

Stove oxygen enrichment

Blast furnaces

Combustion

Computational fluid dynamics

Dynamic models

Industrial stoves

Oxygen

Blast furnace gas

Blast temperature

CFD modelling

Combustion pro-cess

Industrial trial

Modelling and analysis

Oxygen enrichment

Practical works

Stoves

Energy Engineering

Publication and Content Type

ref (subject category)

kon (subject category)