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Steel Recycling

Steel Recycling . Group 3 Natalie Infante Samantha Borges Ben Visnesky Andrew Osheka Kaiwen Zhang . EDSGN 100 SPRING 2012 . Introduction . ArcelorMittal sponsor company Developing a machine that recycles steel Cost efficiency and benefits

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Steel Recycling

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  1. Steel Recycling Group 3 Natalie Infante Samantha Borges Ben Visnesky Andrew Osheka Kaiwen Zhang EDSGN 100 SPRING 2012

  2. Introduction • ArcelorMittal sponsor company • Developing a machine that recycles steel • Cost efficiency and benefits • Satisfying the client

  3. Design Process • Spark Test analysis and results • Chemical analysis and chromatography • Spectrometer • Railroad Junction • Water Jets

  4. Step One: Scrap Preparation Prototype Collect steel for placement on conveyer system Work steel to appropriate size Distribute steel evenly on conveyer for further examination

  5. Step Two: Scrap Composition Analysis Overhead emitter fires bursts of single-frequency x-rays at steel scraps Detector analyzes time for waves to “bounce back” and changes in energy. Computer uses data to construct digital rendering of size and composition of scraps

  6. Step Three: Scrap Separation • Pressurized water jets “shoot” AHSS scraps onto upper conveyer, lets LCAK scraps fall onto lower conveyer • Computer uses digital rendering and conveyer speed to determine how strong water burst should be

  7. Chemistry • Very difficult to determine for many alloys • Example – Columbium • Aim: 0.004% Max • Already in Steel: 0.00% • HC Percentage: 66.00% • Recovery Percentage: 90.00% Calculation: 0.1% Cb/Steel * 440,000 lb Heat Size = 17.6 lb Cb 17.6 lb Cb / (66% HC Cb * 90% Recovery) = 29.629 lb Cb 440,000 lb Heat Size * 85% = 66000 lb Using a mix of 44,700 lb AHSS & 21,300 lb LCAK Resulting Cb Chemistry = 0.0022%

  8. Conclusion • Brainstorming • Building the prototype • Working mechanisms and success of project

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