632-0927/01 – Foundry Wastes Recycling – Sand Regeneration 2 (RSM 2)
| Gurantor department | Department of Materials and Technologies for Vehicles | Credits | 6 |
| Subject guarantor | doc. Ing. Vlasta Bednářová, CSc. | Subject version guarantor | doc. Ing. Vlasta Bednářová, CSc. |
| Study level | undergraduate or graduate | Requirement | Choice-compulsory |
| Year | 3 | Semester | winter |
| | Study language | Czech |
| Year of introduction | 2009/2010 | Year of cancellation | 2013/2014 |
| Intended for the faculties | FMT | Intended for study types | Bachelor |
Subject aims expressed by acquired skills and competences
The student will be able as follows:
- to classify foundry waste according to its volume and danger degree;
- to analyse possibilities of secondary utilization of foundry wastes (moulding mixture, slag, dusts, refractory materials);
- to choose the most suitable method of moulding mixture reclamation according to the binder system;
- to evaluate conditions of waste recycling from dedusting systems in a melting furnace.
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Experimental work in labs
Summary
The basis of the foundry process – melting of non ferrous and ferrous cast alloys, types of binders used for mold and core making, molding techniques. Foundry wastes classification, and methods of their recycling . Sand rereclamation, recycling, re-use and disposal. The main sand reclamation techniques. External re-use of waste sand – main areas of application.Re-use of dusts from the green sand circuit in mould making. Recirculation of filter dust into cupola furnace. BAT techniques.
Compulsory literature:
[1] http//:eippcb.jrc.es INTEGRATED POLLUTION PREVENTION AND CONTROL,
REFERENCE DOCUMENT ON BEST AVIABLE TECHNIQUES IN THE SMIFHERIES AND FOUNDRIES INDUSTRY
Recommended literature:
[1] Schieg,F.P. : Technology of Metalcasting. American Foundry Society,Des Plaines,IL 2003
Articles in professional journals, papers of conferences, research reports, theses
Way of continuous check of knowledge in the course of semester
2 classified seminar papers and defence
2 classified test report
2 tests
E-learning
http//:eippcb.jrc.es INTEGRATED POLLUTION PREVENTION AND CONTROL, REFERENCE DOCUMENT ON BEST AVIABLE TECHNIQUES IN THE SMIFHERIES AND FOUNDRIES INDUSTRY
address where pedagogs could be contacted: http://staff.vsb.cz/
Other requirements
Nejsou zadány další požadavky na studenta.
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Lectures:
1. Foundry wastes- types, quantities, possibilities of wastes minimising in production processes
2. Waste molding and core sands, inorganic and organic binders, properties
3. Mold and core binders in point of sand reclaimability
4. Mechanical reclaimation – principles, devices, efficiency
5. Thermal reclaimation - principles, devices, efficiency
6. Wet reclaimation - principles, techniques, devices, efficiency
7. Reclamation techniques to consider BAT for foundries
8. Reclaim sand properties, methods of evaluation
9. Waste sand external re-use – the costruction industry (road construction), the building materials industry, landill construction
10. Dust treatment and recycling - recirculation of filter dust into cupola furnace
11. Re-use of dusts from the green sand circuit in mould making.
12. Slags recycling
13. Recycling of Al swarfs
14. Possibilities of external wastes recycling in foundry processes (grinding wastes, fly ash).
Practices:
1. Refractory materials for mold and core making, silica and non silica sands, sand laboratory testing of sands, organic and inorganic binders
2. Laboratory methods of testing the reclaim sand
3. Laboratory method of testing the reclaim sand from furan resin bonded no bake sand – test report
4. Visit of ArcelorMittal Ostrava foundry including dry mechanical regeneration
5. Laboratory method of testing the reclaim sand from water glass bonded sand – test report
6. Visit of Vítkovice foundry including dry mechanical regeneration equiped with magnetic separation
7. Seminar - BAT reclamation techniques for foundries
8. Check test, penetration resistance of reclaim sand – testing on cast liquid iron and steel castings
9. Penetration resistance of reclaim sand – testing on cast liquid iron and steel casting – evaluation f results
10. Visit of Cromodora Wheels foundry
11. Laboratory methods of testing dusts from green sand circuit
12. Cast experiments wits dusts reusing in bentonite bonded sand
13. Seminar - waste sand external re-use
14. Final test, credit
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
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