Orinoco Iron briquettes

Orinoco Iron HBI is the ideal metallic charge for steelmaking.

Orinoco Iron briquettes are produced by reducing iron ore fines in fluid bed reactors with a counter current reducing gas (Fluidized Iron Ore Reduction) . Due to their high density and metallization, low gangue and residual content, and inert character, Orinoco Iron HBI is the ideal metallic charge for steelmaking.



Physical and chemical of Orinoco Iron HBI make a superior product for the merchant HBI/ DRI market, as a result of a low level of fines generated during transportation and handling, as well as less gangue, higher carbon, and higher metallization than that found in other HBI/ DRI products. Chemical Analysis

Total Fe92. 5 % min

Metallic Fe84 % min

C0. 8 - 1. 5 %

P0. 09 % max

S0. 03 % max

SiO2 (Silice) 1. 5 % max

MgO0. 3 % max

CaO0. 03 % max

Al2O3 (Alumina) 1. 3 % max

Gangue (CaO+MgO+

SiO2+Al2O3) 3. 0 % max





Residual

Cu<= 0. 002%

Ni<= 0. 006%

Cr<= 0. 008%

Mo<= 0. 002%

Sn<= 0. 002%





Physical analysis

Size90 x 58 x 29 mm

Weight0. 5 - 0. 7 Kgs

Bulk Density2. 77 ton/ M3 min

Briquette density5. 0 g / cm3

Granulometric distribution>4 mm : 98%

<4 mm : 2%

Moisture0. 1% max.





Specific Applications

Use in Electric Arc Furnaces

Due to their high density, Orinoco Iron briquettes can be used as an alternative metallic source by either charging in buckets (batch charging) or continuous feeding through the roof. By charging in buckets, it is possible to reduce the number of back- charges since briquettes are much denser than scrap. Up to 40% briquettes can be used when charging in buckets. In continuous feeding, briquettes are more effective than DRI due to their high density, which allows them to penetrate to the slag/ metal interface quickly rather than hang up in the slag. It is possible to continuously charge up to 100% briquettes. One of the meltshops in the SIDETUR group, Casima, uses an 85% briquette practice. By continuous feeding, all back- charges can be eliminated, which reduces tap to tap time and heat losses due to swinging the roof. This results in a more constant power input, which reduces line losses and improves productivity. Because of the low residual content of the briquettes, they are in increased demand for the production of higher quality steels.



Use in Ladle Furnaces

The low residual content, compact shape, and high thermal conductivity make briquettes attractive as a coolant for liquid steel in ladle furnaces.



Use in BOF

The Orinoco Iron HBI are used as a replacement for oxide pellets as coolant in BOFS to increase hot metal production. Up to 5% briquettes have been used as coolant in large BOF shops. They can also be used as a trim coolant in ladles. HBI has been used in BOFs as a high quality low residual scrap substitute with excellent results.



Use in Blast Furnaces

Using The Orinoco Iron HBI in the burden of blast furnaces allows the productivity to be increased and reduces coke consumption.



Other uses

The Orinoco Iron HBI are used in smaller quantities in cupolas with good results. Briquettes with up to 3% carbon are being used with excellent results in EAF shops.