post-consumer steel scrap faculteit... · 2018. 1. 12. · scrap . upgrading post-consumer steel...
TRANSCRIPT
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5-7-2013
Challenge the future
Delft University of Technology
Post-consumer steel scrap Technical developments and economic feasibility Resources & Recycling
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2 Upgrading post-consumer steel scrap
Resources & Recycling at Delft
Create innovations in recycling that
add value from all perspectives:
social, environmental and
industrial-economic
Mission
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3 Upgrading post-consumer steel scrap
Steel scrap from IBA High contamination levels > low/variable price
Double gain from cleaning: sales of Cu and increased value of steel
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4 Upgrading post-consumer steel scrap
Environmental gain recycle steel CO2-emission
Recovering fine & midsized steel from 1 ton of IBA saves 30-50 kg of CO2-emission
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5 Upgrading post-consumer steel scrap
Steel scrap upgrading CSM technology
*Installation at Sluiskil, the Netherlands (Resteel, 50 t/h)
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6 Upgrading post-consumer steel scrap
Steel scrap upgrading Flows and contaminants
Type of steel scrap
EU production [Mt/y]
Typical capacities*
[t/h]
Typical contaminants/levels
WEEE 2 1-5 2.3% Cu
IBA 1 2-20 0.7% Cu, 1% batteries, Phosphor, 0.1% S,
10% sand/rust, 0.2% coarse stone, 0.1% cloth/plastic
ELV 8-11 30-200 0,7% Cu, rubber, stainless, cast Al
Total 11-14
*Input steel scrap for hand sorting operations
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7 Upgrading post-consumer steel scrap
Steel scrap upgrading Hand picking of Cu-parts: statistics & costs
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0,4 0,5 0,6
Belt velocity [m/s]
VisiblecontaminantsRecoveredcontaminants% pickingtime
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[%]
Hand pick size [mm]
Number % ofinput
Recovery
At 18 t/h of IBA scrap, six hand-pickers recover max. 50 mass% of the copper contaminants, at a (hand-picking) cost of about 6 €/t of IBA scrap
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8 Upgrading post-consumer steel scrap
Steel scrap upgrading
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-6 -4 -2 0 2 4 6 8 10 12 14
z x
Fcentrifugal
Fmagnet
magnet
scrap particle
Shape & orientation-sensitive field
magnet
: Demagnetizing factor
zz
z
z
BVF H
D x
D
Principle of CSM technology
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9 Upgrading post-consumer steel scrap
Principle of CSM Relation shape & orientation and D-factor
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0,05
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0,25
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0 2 4 6 8 10 12
Ratio dimensions
Dem
ag
neti
zin
g f
acto
r
bar
sheet
granular
critical D
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10 Upgrading post-consumer steel scrap
Principle of CSM Distribution of D-factor for IBA steel scrap
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0,00 0,02 0,04 0,06 0,08 0,10 0,12
Cu
mu
lati
ve m
ass
Demagnetizing factor
Clean steel
Copper containing parts
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11 Upgrading post-consumer steel scrap
Steel scrap upgrading Example parts ending up in two products of CSM
Flat & bar-shaped steel Ball-shaped steel, Cu-parts,
batteries, rock, cloth
Near product Far product
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12 Upgrading post-consumer steel scrap
IBA Steel scrap upgrading plant
Beverwijk, the Netherlands
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13 Upgrading post-consumer steel scrap
Flowchart IBA scrap plant
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14 Upgrading post-consumer steel scrap
IBA Steel scrap upgrading Beverwijk, the Netherlands
50 t/h input
2 t/h Cu-parts
42 t/h clean steel
6 t/h sand/dirt
Handpicking
3.5 t/h
CSM plant
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15 Upgrading post-consumer steel scrap
IBA Steel scrap upgrading Economics 50 t/h (investment CSM plant 1.6 M€);
Extra product revenue per ton IBA: 3.1 € 60 kg Ferrous 15-300 mm 0.035 €/kg 2.1 € 2 kg copper-containing parts 0.7 €/kg 1.4 € 8 kg sand/dirt -0.05 €/kg -0.4 €
CSM plant processing cost per ton IBA* -0.5 € Net profit per ton IBA 2.6 €
*based on 80 kton/a of IBA scrap
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16 Upgrading post-consumer steel scrap
Thank You