What is the difference between HBI and DRI?

What is the difference between HBI and DRI?

Direct reduced iron (DRI) is produced by the direct reduction of iron ore in the solid state. Hot briquetted iron (HBI )is DRI that has been briquetted under very high pressure and at elevated temperature to form dense briquettes that are much less porous than DRI and therefore much less reactive.

What is HBI used for?

HBI (Hot Briquetted Iron) can be used as a scrap supplement in Electric Arc Furnaces allowing the production of most demanding steel grades. HBI is also used in Blast Furnaces to boost productivity and to reduce the coke consumption or in Blast Oxygen Furnaces as a low-residual substitute for scrap.

What is HBI metal?

Hot Briquetted Iron (HBI) is a relatively new product, developed in the past 25 years, as a supplement for pig iron and scrap in electric furnace steel mills. It is a compacted form of direct reduced iron (DRI), which facilitates its handling, storage, and use.

What is cold briquetted iron?

Cold Briquetted Iron and Carbon (CBIC) In other words, CBIC is a metallic material molded in briquette shape, derived from a compressing process through which pellet DRI is fed into the roller presses at room temperature.

What is Midrex process?

The MIDREX process produces direct reduced iron (hereinafter referred to as DRI). The process reduces iron ore using a reforming gas made from natural gas. The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron.

What is the difference between pig iron and sponge iron?

The key difference between sponge iron and pig iron is that we can produce sponge iron by direct reduction of iron ore through reducing agents whereas the production of pig iron is by melting iron ore with charcoal and limestone at very high pressures.

What is iron briquette?

Composite briquettes or pellets consisting of iron ore, carbon, and a binder are a source of direct reduced iron (DRI). In the handling of green and reduced briquettes, high strength is important to minimize briquette breakdown.

What is HBI data?

Information classifications HBI HBI applies to any information including emails, documents, messages and phone conversations that, if disclosed without authorization, could result in immediate, direct or considerable impact to the company, the information owner and customers.

What is the full form of HBI?

Hot Briquetted Iron (HBI) is a premium form of DRI that has been compacted at a temperature greater than 650° C at time of compaction and has a density greater than 5,000 kilograms per cubic metre (5,000 kg/m3).

What is DRI scrap?

Direct-reduced iron has about the same iron content as pig iron, typically 90–94% total iron (depending on the quality of the raw ore) so it is an excellent feedstock for the electric furnaces used by mini mills, allowing them to use lower grades of scrap for the rest of the charge or to produce higher grades of steel.

What is degree metallization?

Degree of metallization is the extent of conversion of iron oxide into metallic iron during reduction. It is defined in percentage of the mass of metallic iron divided by the mass of total iron.

Which is true of DRI and HBI fines?

These are manufactured products or products derived from the manufacturing process (in the case of DRI/HBI Fines), which means they have consistent and uniform characteristics that generally follow the Laws of Nature. However, there is a “human factor” in every process, be it production, handling, shipping, or storage.

What does hot briquetted iron ( HBI ) stand for?

HOT BRIQUETTED IRON (HBI) HBI – Steel’s Versatile Metallic HOT BRIQUETTED IRON (HBI) Guide for Handling, Maritime Carriage, and Storage Hot Briquetted Iron Association (HBIA) Ltd. presents

What should be treated as HBI BC 016?

It should be treated as HBI BC 016, provided there is no additional qualification to the HBI (see below). CBI is manufactured from the various residual products produced during the manufacture of associated ferrous products and semi-refined raw materials including DRI (DRI fines but also other residuals).

How is HBI classified as a hazardous cargo?

Shipping and handling. HBI – Direct Reduced Iron (A) – is classified as Group B (cargo with chemical hazard) and class MHB (material hazardous only in bulk) under the International Maritime Organisation’s International Maritime Solid Bulk Cargoes Code, but, unlike DRI which requires shipment under an inert atmosphere,…