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Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 1
CHAPTER 20 Auxiliary Equipment
Table of Contents
Contents
Page
Chapter Overview
2
Class Preparation Checklist
2
Chapter Objectives
2
Agenda
3
Lesson Plan
4
20.1 Introduction
20.2 Hazards Associated with Auxiliary Equipment
5
10
20.3 Process Technician’s Role in Operation and
Maintenance
10
Summary and Wrap-Up
11
Suggested Student Activities
11
End of Chapter Review Questions
11
Clicker Questions
Appendix
16
20
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 2
CHAPTER 20 Auxiliary Equipment
Chapter Overview
The process industries use many types of auxiliary equipment. The term auxiliary refers
to items that act in a supporting capacity. In this chapter you will describe the purpose,
types, components, and operations of common auxiliary equipment. As a process
technician, you will identify hazards, and describe your role in the use of auxiliary
equipment.
Class Preparation Checklist
1.
Familiarize yourself with the chapter content.
2.
Bring cutaways or other hands-on teaching aids if available.
3.
Copy and distribute any fill-in-the-blank handouts for today's content.
4.
Safety Minute prepared or assigned
5.
Review the PowerPoint slides associated with this chapter (if used) and
make sure that your computer is correctly set up to navigate the slide deck
smoothly.
6.
Request the appropriate A/V equipment (if needed) and make sure that
your computer is correctly synched with the projector to avoid any delays in
the classroom.
Chapter Objectives
20.1 Describe the purpose, types, components, and operations of common auxiliary
equipment: agitator, mixer, agglomerator, eductor, ejector, centrifuge, hydrocyclone,
and demister.
20.2 Identify hazards associated with auxiliary equipment.
20.3 Describe the process technician’s role in the use of auxiliary equipment.
Process Technology Equipment
CHAPTER 20 Auxiliary Equipment
Page 3
Class Agenda
Activity
Minutes
PPTs
Handouts
(title, if
any)
1. Welcome to Class
1
1
2. Introduction and Agenda
1
2
3. Safety Minute
2
3
4. Objectives
1
4
5. Terms
2
5
6. Introduction
2
6
7. Agitator
4
7
8. Mixer
4
8
9. Agglomerator
2
9
10. Drum Mixer
2
10
11. Eductor
3
11
12. Ejector
4
12
13. Centrifuge
2
13
14. Centrifuge (cont.)
1
14
15. Continuous-Feed Centrifuge
1
15
16. Hydrocyclone and Cyclone Separators
4
16
17. Demister
3
17
18. Hazards with Auxiliary Equipment
3
18
19. Process Technician’s Role in Operation and
Maintenance
4
19
20. Summary and Wrap-Up
4
20
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CHAPTER 20 Auxiliary Equipment
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Chapter 20 Lesson Plan
Welcome Everyone to Class
Time: 1 minute
Resources: Slide 1
Introduction and Agenda
Time: 1 minute
Resources: Slide 2
Sample Instructor Script:
The process industries use many different types of auxiliary equipment. The term
Safety Minute
Time: 2 minutes
Resources: Slide 3
(Note to Instructor: Follow this procedure for the Safety Minute.)
• Announce who has responsibility for today’s Safety Minute.
• Have the student present the Safety Minute.
• Announce who is presenting the Safety Minute next class.
Objectives
Time: 1 minute
Resources: Slide 4
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CHAPTER 20 Auxiliary Equipment
Page 5
Terms
Time: 2 minutes
Resources: Slides 5
Sample Instructor Script:
Turn to the terms page in today’s chapter in the textbook. I’ll call on some of you to take
20.1 Introduction
Time: 2 minutes
Resources: Slide 6
20.1.1 Agitator
Time: 4 minutes
Resources: Slide 7
Sample Instructor Script:
Components
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CHAPTER 20 Auxiliary Equipment
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20.1.2 Mixer
Time: 4 minutes
Resources: Slide 8
Sample Instructor Script:
20.1.3 Agglomerator
Time: 2 minutes
Resources: Slide 9
Sample Instructor Script:
An agglomerator is a mixer that feeds dry and liquid products together to produce an
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CHAPTER 20 Auxiliary Equipment
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Operations
20.1.4 Drum Mixer
Time: 2 minutes
Resources: Slide 10
20.1.5 Eductor
Time: 3 minutes
Resources: Slide 11
Sample Instructor Script:
Operations
20.1.6 Ejector
Time: 4 minutes
Resources: Slide 12
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Components
The components of an ejector system include the Venturi (diffuser throat), ejector
housing, nozzle, and a downstream steam condenser.
20.1.7 Centrifuge
Time: 2 minutes
Resources: Slide 13
Sample Instructor Script:
20.1.8 Centrifuge (cont.)
Time: 1 minute
Resources: Slide 14
Sample Instructor Script:
There are two different kinds of centrifuge: batch centrifuge and continuous-feed
centrifuge.
A batch centrifuge consists of various components such as an axial feed line, distributor,
screw, barrier disc on HP screw, and sediment outlet. A continuous centrifuge consists
of a differential hosing, bearing block, back mixer, liquid phase outlet, and bearing block.
20.1.9 Continuous-Feed Centrifuge
Time: 1 minute
Resources: Slide 15
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CHAPTER 20 Auxiliary Equipment
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Sample Instructor Script:
20.1.10 Hydrocyclone and Cyclone Separators
Time: 4 minutes
Resources: Slide 16
Sample Instructor Script:
20.1.11 Demister
Time: 3 minutes
Resources: Slide 17
Components
A demister has a porous woven pad or a steel wool pad (called a mist eliminator or
demister pad), a stack of screen-like material, and a zigzag vane design.
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CHAPTER 20 Auxiliary Equipment
Page 10
20.2 Hazards Associated with Auxiliary Equipment
Time: 3 minutes
Resources: Slide 18
Sample Instructor Script:
When working around auxiliary equipment, process technicians should always be aware
20.3 Process Technician’s Role in Operation and Maintenance
Time: 4 minutes
Resources: Slide 19
Sample Instructor Script:
The process technician’s role in operation and maintenance includes following standard
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CHAPTER 20 Auxiliary Equipment
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Summary and Wrap-Up
Time: 4 minutes
Resources: Slide 20
Sample Instructor Script:
Let’s summarize today’s lesson and consider what we will be doing in the next class.
(Note to Instructor: To wrap up the lesson, complete the following activities.)
Suggested Student Activities
(Note to Instructor: Time permitting, do the activities listed below or possibly assign
them as homework. Be sure to remind students what to read for the next class.)
End of Chapter Review Questions
(Note to Instructor: If you have time, you can use these questions to test your
students’ knowledge of the content presented in this chapter.)
1. What type of auxiliary equipment rotates to combine products?
A. Mixer
B. Agitator
C. Eductor
D. Ejector
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CHAPTER 20 Auxiliary Equipment
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2. What type of auxiliary equipment circulates fluid using a Venturi design?
A. Mixer
B. Agitator
C. Eductor
D. Ejector
3. What type of mixer is a screw-type device used to blend two or more materials
into a consistent composition?
A. Inline mixer
B. Drum mixer
C. Agglomerators
D. Dynamic mixer
