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Agitators and Mixers
J.
Edward Hardin, P.E.
Overview
Agitators and mixers have been around for centuries. They are still an
essential part of processes in countless industries from manufacturing paint to
treating water. As technology has progressed, so have mixing apparatus.
Mixers, agitators and blenders continue to evolve as new requirements and new
applications are identified and as technology increases. For example, not
too long ago, energy costs were low. Thus, energy consumption of an
agitator was not usually a major design consideration. Nowadays, however,
energy costs are high enough to warrant consideration when designing or
selecting a mixer for your application.
The course author, who has
over 40 years of experience designing agitators and mixers for process
applications, provides a wealth of information and "been there, done that"
experience.
The student must take a
multiple-choice quiz consisting of fifteen (15) questions at the end of
this course to obtain PDH credits.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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Water-based mixing
operations
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History of mixing
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Different
definitions of uniformity of mixing in various industries
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Top mounted vs.
bottom mounted mixers
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Blade design
influences on energy consumption
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Mixing equipment
shaft seals
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High shear mixing
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Turbine type
agitators
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Blade material
selection and manufacturing methods to deal with corrosion
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Blade design and its
impact on performance
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Baffle design and
separation
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Mixing applications
for various industries, including paints, water treatment, washing/blending
applications and slurries
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Solids mixing
applications
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Mechanically
assisted mixing apparatus, including ribbon blenders, double-cone blenders,
and pant-leg blenders
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Trough type mixers,
including sigma blade blenders and pug mixers
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Vessel design
considerations in mixing applications
Course
Click on the links
below to hear the audio for the course Agitators and Mixers prior to taking the quiz for PDH
credit.
Audio
Agitators and Mixers - Disk 1 - Track 1 (467 KB)
Agitators and Mixers - Disk 1 - Track 4 (835 KB)*
Agitators and Mixers - Disk 1 - Track 6 (3.6 MB)*
Agitators and Mixers - Disk 1 - Track 7 (36.6 MB)
Agitators and Mixers - Disk 2 - Track 1 (43.1 MB)
Agitators and Mixers - Disk 3 - Track 1 (37.6 MB)
Agitators and Mixers - Disk 3 - Track 2 (170 MB)
Agitators and Mixers - Disk 3 - Track 3 (136 MB)
| * |
Note that some
tracks, specifically Disk 1 - Tracks 2, 3, and 5 were omitted in the final
edit of this course. |
Below is a link to some reference material that
the author has provided to supplement the course.
Agitators and Mixers Reference Material (325 KB)
Text-based
In lieu of listening
to the audio version, you can download a PDF of the transcript for this course
below.
Also, audio users may
want to refer to the course transcript when answering the quiz questions.
Agitators and Mixers - Transcript of Audio Course (116 KB)
To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
(To take the quiz,
your web browser must be set to accept cookies. See how to
check your cookie settings.)
 
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