ArcelorMittal Recycling of Advanced High Strength Steel Concept Proposal

Corey Tokar, Austin Sigler, Robert Patrick, Rashid Obaid

Our Proposed Initial Concept Ideas

1. Pre-Separation of Automotive Parts at Scrapyard2. Pig Iron and Slag Recycling Method3. Using the Mass Spectrometry Technique4. Using Melting Points to Separate Alloy Metals

1.) Pre-Separate Automotive Parts

• Pre-separate the materials at scrapyard• Eliminates amount of unneeded scrap• Makes for a faster high alloy steel separation process• Saves time and money by not using advanced techniques• Manual labor would be used to separate car parts• Less harm would be caused to steel quality

2.) Pig Iron/Steel Recycling• Pig iron would be worked into steel. • Pig iron is melted and a strong current

of air is directed over it while it is being stirred or agitated

• Causes the dissolved impurities (such as silicon) to be thoroughly oxidized.

• More slag formers are introduced and more oxygen is blown into the bath

• This burns out impurities such as silicon, sulfur, phosphorus,aluminium, manganese, and calcium, and removing their oxides to the slag.

• Using an Electric Arc furnace, Pig Iron is blasted with slag in order to create a higher quality steel.

3.) Mass Spectrometry Technique

• Follows basic principles of electromagnetism

• The magnetic field curves the ions based upon their unique charge to mass ratio

• Different elements/ compounds will end up at different locations

4.) Separation By Melting Points• Alloys put together in

air-tight mixer • Mixer heats to

different temperatures based on melting points

• Melted metals separate from alloy and are transported using gravity

Snapshot of Design MatricesCriteria/requirements

Separate alloy from scrap

Scrap cycle management

Avoid off chemistry steel

Material usage

Energy usage Total for each row

WF for each row = total of row/sum of row

Separate alloy from scrap

1 1 1 1 4 0.4

Scrap cycle management

0 0 1 1 2 0.2

Avoid off chemistry steel

0 1 1 1 3 0.3

Material usage

0 0 0 0 0 0

Energy usage 0 0 0 1 1 0.1

Sum of Totals Sum of WFs = 100%