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![Page 1: Investigation & optimization of Greenside coal transfer points in order reduce maintenance requirements Ayanda Nhlapho 2 nd Year University of Cape Town.](https://reader034.fdocuments.in/reader034/viewer/2022051820/56649c7f5503460f94934f63/html5/thumbnails/1.jpg)
Investigation & optimization of Greenside coal transfer points in order reduce maintenance
requirements
Ayanda Nhlapho
2nd Year University of Cape Town
![Page 2: Investigation & optimization of Greenside coal transfer points in order reduce maintenance requirements Ayanda Nhlapho 2 nd Year University of Cape Town.](https://reader034.fdocuments.in/reader034/viewer/2022051820/56649c7f5503460f94934f63/html5/thumbnails/2.jpg)
Table of Contents Project Background
Problem Statement
Objectives
Methodology
Plant Information
Materials Used on Chutes
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Table of Contents Wear Liners on Chutes - Wear Liner Selection - Wear Liner Solutions
Liner Results
Liner Solutions - Dead Box liners
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Table of Contens Functions of an Effective Chute
Chutes
Conclusion
Recommendations
QUESTIONS
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Project Background 4-Seam & 5-Seam Plant
Chutes in the Plant
Liners on Chutes
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Investigation of Transfer Points.
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Objectives Find a way to improve Transfer Points in order to
reduce maintenance requirements.
Minimize costs.
Increase safety.
Decrease labour hours & downtime.
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Methodology Participate in daily maintenance activities
Research on chute & liners
Visits to consultants Martin Engineering & Seaton products
Compare costs of new systems to old systems
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Plant
5-Seam5-Seam
4-Seam4-Seam
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Crusher
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Size Separation (Debmar screen)
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Separation of coal & waste (Spiral)
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Separation of coal & waste (Cyclone)
Overflow (Product)
Underflow (Discard)
Vortex Finder
Tangential Inlet
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Separation of coal and waste (Drum)
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Wear liner on chutes Wear liner is a material used on the interior of a
chute as a sacrificial surface. It serves as an easily replaceable sacrificial wear surface to protect the walls of the chute.
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Materials used on chutes Mild steel (Chutes) -Low maintenance -Price is relatively low -It is neither brittle or Ductile -Corrosion resistance
Stainless Steel [304] (Liner material) - Abrasion resistance - Antibacterial - Passivation - High strength - Corrosion resistance
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Materials used on chutes Ceramic Tiles (Liner material) - Corrosion resistant - Abrasion resistance - Low maintenance - Relatively inexpensive
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Wear liner selection Friction Coefficient
Resistance to material adhesion
Resistance to abrasive wear
Resistance to impact
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Wear liner selection Resistance to corrosion
Attachment method
Initial cost
Maintenance cost
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Wear liner selection
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Liners on chutes
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Dead Box Liners
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Dead Box liners
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Liner results Greater Savings associated with using
Polyurethane
Installation & maintenance is very cheap
6 Times lighter Therefore very safe to work with
Lasts longer than stainless steel
Great reduction in noise levels
Decrease in downtime
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Liner Results
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Functions of an effective chute To feed the receiving conveyor in its direction of
travel
To centralize the material load
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Functions of an effective chute To minimize the impact on the receiving belt and
material degradation
- Chute angles
- Material buffer
Grizzly Bars installed on Chutes
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Functions of an effective chute To supply the stream of material at a speed as
close as possible to the speed of the receiving conveyor.
To minimize the generation of spillage and the release dust.
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Functions of an effective chute Traditional chutes
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Hood & Spoon
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Hood & Spoon
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Hood & spoon
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Hood & Spoon Dust reduction
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Conclusion Change all liners to polyurethane
Apply Hood & Spoon
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Recommendations Seaton Products
Martin Engineering
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Acknowledgements Staff in the training centre Staff working at the plant Underground staff
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QUESTIONS?
Questions?
Questions?
Questions?