546-0913/02 – Separation Processes (RP)

Gurantor departmentDepartment of Environmental EngineeringCredits10
Subject guarantordoc. Dr. Ing. František TichánekSubject version guarantordoc. Dr. Ing. František Tichánek
Study levelpostgraduateRequirementOptional
YearSemesterwinter + summer
Study languageCzech
Year of introduction2009/2010Year of cancellation2010/2011
Intended for the facultiesHGFIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
TIH50 doc. Dr. Ing. František Tichánek
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 20+0
Combined Examination 20+0

Subject aims expressed by acquired skills and competences

Subject intent is information with theory and patterns particular separation processes.

Teaching methods

Lectures
Individual consultations

Summary

Theory and regularities of particular separating processes: gravitational static a dynamic separation, magnetical separating, magnet-dynamical, electrical, radiometrical, fotometrical and the others physical processes. Physiochemical separating processes (flotation options), chemical and combined. Problems of calculations and construction of separating machines, reactors and others supportive facilities and their technological arrangements.

Compulsory literature:

WiLLs, B.A.,Wills’ Mineral Processing Technology. An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. 2006, ISBN 0-7506-4450-8

Recommended literature:

Tichánek,F., Botula,J., Řepka,V.: Mineral processing, VŠB TU Ostrava, 2005, 1.edition, page number 93, ISBN 80 – 248 – 0813 -7

Way of continuous check of knowledge in the course of semester

E-learning

Další požadavky na studenta

Individuální konzultace

Prerequisities

Subject has no prerequisities.

Co-requisities

Subject has no co-requisities.

Subject syllabus:

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

Conditions for subject completion

Full-time form (validity from: 2009/2010 Winter semester, validity until: 2012/2013 Summer semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2010/2011 (P2102) Mineral Raw Materials (2102V009) Processing P Czech Ostrava Optional study plan

Occurrence in special blocks

Block nameAcademic yearForm of studyStudy language YearWSType of blockBlock owner