| Course Unit Code | Course Unit Title | Number of ECTS Credits Allocated |
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| 542-0468/01 | Physical Separation Processes I | 6 ECTS credits |
| Type of Course Unit | Compulsory |
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| Level of Course Unit | First Cycle |
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| Year of Study | First Year |
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| Semester when the Course Unit is delivered | Summer Semester |
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| Mode of Delivery | Face-to-face |
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| Language of Instruction | Czech |
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| Prerequisites and Co-Requisites | Course succeeds to compulsory courses of previous semester |
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| Name of Lecturer(s) | Personal ID | Name |
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| TIH50 | doc. Dr.Ing. František Tichánek |
| R1E60 | Ing. Vlastimil Řepka, Ph.D. |
| BOT40 | doc. Ing. Jiří Botula, Ph.D. |
| Learning Outcomes of the Course Unit |
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| Student is informed about theoretical basis of gravitational separation and on the basis of gained knowledge he is able to estimate and project suitable way of separation to exist raw material. |
| Recommended Optional Programme Components |
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| Common optional components are not offered, students of special interest can participate in departmental activities or can arrange consulting hours with lecturer. |
| Course Contents |
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Lectures:
I. Introduction
The importance of adjustment of raw materials. The distribution of basic treatment processes of raw materials. Technological process with and without separation.
II. Gravity separation.
1. Gravity separation of raw materials, theoretical foundations, grains movement in the physical environment, the Rittingers theory . Gravitational adjustability.
2. Separation in suspensions. The principle and the possibility of separating in a suspension.
Properties of weighting materials and suspensions, types of using. Static gravity separation in organic liquids and aqueous solutions of salts. The main types of equipment used for static separation in suspensions. Control of suspension density, losses of weighting material. Preparation and regeneration of suspensions, gravity and magnetic recovery. Evaluation of separation in suspensions.
3. Separation in the ascending and descending turns of water flow (Separation using jigs).
Analysis of processes run in the field of jig, derivation of the movement velocity of grain in individual stages of separation process. Methods of producing alternating upward and downward flow of water. Methods of products discharging from the jig.
Rating jigs in terms of their arrangement in the technological process. Rating of separation in jigs.
4. Separation in hydrocyclones (using centrifugal forces). Forces
acting on the grain in the hydrocyclone. Procedure of separation using a low and high pressure hydrocyclones. Separation in
hydrocyclones by using a suspensions.
5. Separation in the stream of water on an inclined plane. Analysis of forces affecting the grain. Separation in chutes, in an oscillating table, in spiral separators, in conical separators.
6. Separating in the ascending flow of separative media.
7. Pneumatic separation. Pneumatic jigs and oscillating table. Fluid
separation.
Exercise:
1. Evaluation of gravity treatability.
Preparation of floating liquids, determination of liquid density (hydrometer, pycnometer, Mohr scales). Realization of coal floating analysis of different grain size classes. Evaluation of floating analysis in the form of curves in M and the HR diagram. Cumulative
treatability curve in M and HR diagram.
Floating of fine grain fractions in a separating funnels. Determination of the treatability of the evaluated sample and individual grain size classes.
2. Rating of weighting materials and suspensions.
Determination of density of solid phase. Calculation of volume and mass concentration of solid and liquid phases. Determination of particle size composition of weighting material (wet grain size analysis,
sedimentation analysis).
3. Laboratory separation at hydrocyclones (at the oscillating table and jig).
Determination of yields of separation products.
Rating separation efficiency - Yields
- Tromp’s dividing curves
- Grumbrecht
|
| Recommended or Required Reading |
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| Required Reading: |
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|
1. Bláhová,O.- Holbein,M.: Fyzikální rozdružovací procesy I.Skripta VŠB 1989.
2. Cagaš,Z.: Fyzikální způsoby úpravy II. Skripta VŠB 1982.
3. Špaldoň,F.: Úprava nerastných surovin. SNTL/ALFA 1986.
4. Lukáč,J.: Fyzikálné metody rozdružovania. Skripta TU BF Košice 1993.
5. Cagaš,Z.- Bláhová,O.: Úvod do fyzikálních způsobů rozdružování. Skripta VŠB
1981.
6. Kozák,J.- Cagaš,Z.: Hodnocení upravitelnosti a způsobů úpravy nerostných
surovin. SNTL/SVTL 1965.
7. Kozák,J.: Úpravnická technologická analýza. Návody do cvičení.Skripta VŠB
1987.
8. Dinter,O.: Základy úpravy uhlí a rud. SNTL 1966.
9. Kozák,J.: Úpravnická technologická analýza. Tabulky a rastry.Skripta VŠB |
| Planned learning activities and teaching methods |
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| Lectures, Individual consultations, Tutorials |
| Assesment methods and criteria |
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| Tasks are not Defined |
| Work placement(s) |
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| Course does not contain work placement. |
