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1 COREX ironmaking means that conventional ironmaking system with blast furnace, coke oven and sintering circuit is replaced by melting reduction ironmaking with non-coking coal and oxygen.

2 COREX process is considered to be the only coal-based melting -reduction ironmaking process which has been successfully put into industrial operation presently in the world.

3 Masses of alkaline COREX slag not only occupy great amounts of land, but also pollute the groundwater through leakage.

4 COREX process is briefly introduced. A static model combining a set of mass and heat balance equations was developed.

5 COREX technology is one of new iron making technologies which use a molten iron gasifier and a reduction shaft instead of coke oven and blast furnace.

6 A hot simulation equipment of COREX shaft and its experimental results are introduced.

7 At present, COREX is an only smelting reduction process which is mature on the technology, and realizes successful application on industry.

8 COREX process has been developed by Voest - Alpine Industrieanlagenbau, austria, as an alternative to Blast Furnace.

9 COREX process, known as an advanced technology of metallurgical industry presently, can use iron ore and non-coking coal to produce high quality hot metal.

10 Aim to the problem of gas resource scarcity in future development plan at Bao Steel, outside fuels which were introduced to steel works became necessity, and COREX gas in the highest flight.

11 By theoretical and practice data analyzing, it is proved that COREX process energy consumption for one ton liquid iron is nearly related to excess gas amount produced accordingly.

12 The model of numerical modeling,[www.Sentencedict.com] simulation and training software for COREX process was developed.

13 The characteristics of in-bath smelting reduction furnace and the spotal conditions for refractories in COREX technique have been presented.

14 The energy consumption of shaft production of HBI using COREX offgas, is analysed with presentation of suitable reduction conditions and influencing factors.

15 There are two main problems in the process. Coal consumption of COREX is too much and coke is still used to supply effective calorific value of coal and form a fix bed with carbon.

16 From research, it was proved that smelting coal properties were important to COREX process.

17 The characteristics of in and the spotal conditions for refractories in COREX technique have been presented.

18 The calculated results show . that the export gas from the twoC2000 model COREX plants can meet the needs for steam and electricity of entireBeilun Steel Works.