Mechanical unit operations 1Laajuus (3 ECTS)

Objective

After completion of this course the student will be familiar with the basic concepts and theories of granules and powders as well as theory and practice of size reduction. The student will understand operation principles and dimensioning of equipment used in sieving, classification, sedimentation, centrifugation and filtration. The student is familiar with the methods used in decanting of insoluble liquids and elimination of droplets and mist from gases.
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After completion of this course the student will know how to evaluate the energy consumption and select appropriate equipment in size reduction and sieving. The student is able to select and dimension equipment for separation of solids from liquid. The student has the knowledge how to scale-up filters using filtration tests.

Content

Basic concepts of granules and powders, defining of particle size distribution by sieving and sedimentation, differential and cumulative analyses and their key factors, sampling of solid material, theory and energy consumption in size reduction, basic concepts concerning crushers and mills, concepts and theory of sieving, theory of classification and hydrocyclones, sedimentation and settlers, theory of centrifugation and centrifuges, theory and scale-up of filtration and filters, decanting of insoluble liquids, elimination of liquid particles and mist from gases
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Other concepts and measurements of particle size, other equations and diagrams of particle size distribution, definitions of average particle size, measurement of specific surface surface, industrial crushers, mills, sieves and other classifiers

Qualifications

Fluid flow and balances

Further information

Class room teaching: 42 h
Laboratory exercises:
Project: 10 h
Exam: 3h
Student individual workload: 25 h
Total: 80 h
Follow-up of the student workload analysis performed: -