Alfalaval MMPX 303SGP-11 User manual

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ALFA LAVAL SEPARATION
MMPX 303SGP-11
Separator Manual
Product No. 881099-01-04
Book No. 1270065-02 V2
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Alfa Laval Separation AB
Separator Manuals, dept. SKL
S-147 80 Tumba, Sweden
Telephone: [phone]
Telefax: [phone]
Printed in Sweden, 97-03
© Alfa Laval Separation AB 1997
This publication or any part thereof may not be
reproduced or transmitted by any process or
means without prior written permission of
Alfa Laval Separation AB.
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Contents
3
1 Read this first 7
2 Safety Instructions 9
3 Separator Basics 15
3.1 Basic principles of separation 16
3.2 Design and function 24
3.3 Definitions 32
4 Operating Instructions 33
4.1 Operating routine 34
5 Service Instructions 41
5.1 Periodic maintenance 42
5.2 Maintenance Logs 45
5.3 Check points at Intermediate Service 51
5.4 Check points at Major Service 63
5.5 3-year service 65
5.6 Lifting instructions 66
5.7 Cleaning 68
5.8 Oil change 71
5.9 Vibration 73
5.10 General directions 74
6 Dismantling/Assembly 79
6.1 Inlet/outlet and bowl 81
6.2 Bowl spindle and frame 99
6.3 Friction coupling 110
6.4 Flat belt and tightener 116
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6.5 Oil filling device 121
6.6 Water tank 122
6.7 Frame feet 123
7 Trouble-tracing 125
7.1 Trouble-tracing procedure 126
7.2 MMPX mechanical function 126
7.3 Purification and clarification faults 132
7.4 Purification faults 134
7.5 Clarification faults 136
8 Technical Reference 137
8.1 Technical data 138
8.2 Connection list 141
8.3 Interface description 143
8.4 Water quality 146
8.5 Lubricants 147
8.6 Drawings 156
8.7 Storage and installation 168
Index 179
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5
Study instruction manuals and observe the
warnings before installation, operation,
service and maintenance.
Not following the instructions can result in
serious accidents.
In order to make the information clear only foreseeable conditions
have been considered. No warnings are given, therefore, for
situations arising from the unintended usage of the machine and its
tools.
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7
1 Read this first
This manual is designed for operators and service
engineers working with the Alfa Laval separator
MMPX 303SGP-11.
For information concerning the function of the
separator, see chapter ‘‘3 Separator Basics” on
page 15, and chapter ‘‘8 Technical Reference” on
page 137.
If the separator has been delivered and installed
by Alfa Laval as part of a processing system, this
manual is a part of the system documentation. In
this case, study carefully all the instructions in the
system documentation.
In addition to this separator manual a
Spare Parts
Catalogue, SPC is supplied.
This separator manual consists of:
Safety Instructions
Pay special attention to the safety instructions for
the separator. Not following the safety instructions
can cause accidents resulting in damage to
equipment and serious injury to personnel.
Separator Basics
Read this chapter if you are not familiar with this
type of separator. This chapter contains the
technical description and function description.
Operating Instructions
This chapter contains operating instructions for
the separator only.
S0068011
Separator Manual and Spare Parts Catalogue
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1 Read this first
8
Service Instructions
This chapter gives instructions for daily checks,
cleaning, oil changes, servicing and check points.
Dismantling / Assembly
This chapter contains step-by-step instructions for
dismantling and assembly of the separator for
service and repair.
Trouble-tracing
Refer to this chapter if the separator functions
abnormally.
If the separator has been installed as part of a
processing system always refer to the trouble-
tracing part of the system documentation first.
Technical Reference
This chapter contains technical data and
drawings concerning the separator.
Index
This chapter contains an alphabetical list of
subjects, with page references.
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2 Safety Instructions
The centrifugal separator includes parts that
rotate at high speed. This means that:
•Kinetic energy is high
•Great forces are generated
•Stopping time is long
Manufacturing tolerances are extremely fine.
Rotating parts are carefully balanced to reduce
undesired vibrations that can cause a breakdown.
Material properties have been considered
carefully during design to withstand stress and
fatigue.
The separator is designed and supplied for a
specific separation duty (type of liquid, rotational
speed, temperature, density etc.) and must not be
used for any other purpose.
Incorrect operation and maintenance can result in
unbalance due to build-up of sediment, reduction
of material strength, etc., that subsequently could
lead to serious damage and/or injury.
The following basic safety instructions therefore
apply:
•Use the separator only for the purpose
and parameter range specified by
Alfa Laval.
•Strictly follow the instructions for
installation, operation and maintenance.
•Ensure that personnel are competent and
have sufficient knowledge of maintenance
and operation, especially concerning
emergency stopping procedures.
•Use only Alfa Laval genuine spare parts
and the special tools supplied.
G0010411
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2 Safety Instructions
10
DANGER
Disintegration hazards
•Use the separator only for the purpose
and parameter range specified by
Alfa Laval.
•If excessive vibration occurs, stop
separator and keep bowl filled with
liquid during rundown.
•When power cables are connected,
always check direction of motor rotation.
If incorrect, vital rotating parts could
unscrew.
•Check that the gear ratio is correct for
power frequency used. If incorrect,
subsequent overspeed may result in a
serious break down.
•Welding or heating of parts that rotate
can seriously affect material strength.
•Wear on bowl and bowl hood threads
must not exceed safety limit. φ-mark on
bowl hood must not pass opposite
φ-mark by more than specified distance.
•Inspect regularly for corrosion and
erosion damage. Inspect frequently if
process liquid is corrosive or erosive.
S0051311S0055611
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