Alfalaval MBUX 510T-34C User manual

MBUX 510T-34C
Instruction Manual
High Speed Separator
Product No. 881159-01-02/3
Book No. 1270176-02 Rev. 5

Published By:
Alfa Laval Tumba AB
SE-147 80 Tumba, Sweden
Telephone: [phone]
Telefax: [phone]
Original instructions are in English
© Alfa Laval Tumba AB 25 June 2013
This publication or any part there of may not be
reproduced or transmitted by any process or
means without prior written permission of
Alfa Laval Tumba AB.

Contents
3
1 Read this first 9
2 Safety Instructions 11
2.1 Warning signs in text 16
2.2 Environmental issues 17
2.3 Requirements of personnel 18
3 Separator Basics 19
3.1 Basic principles 20
3.2 Definitions 22
3.3 General description 24
3.4 Liquid flow in the bowl 35
4 Operating Instructions 39
4.1 Operating routine 40
4.2 First start 41
4.3 Start after service 41
4.4 Start 42
4.5 Stop 43
4.6 Safety stop 44
5 Service Instructions 45
5.1 Periodic maintenance 46
5.2 Maintenance Logs 50
5.3 Check points at Intermediate Service (IS) 57
5.4 Check points at Major Service (MS) 74
5.5 Lifting instructions 77
5.6 Cleaning 79
5.7 Cleaning program 81
5.8 When changing oil 83

4
5.9 Vibration 87
5.10 Common maintenance directions 88
5.11 General tools 94
6 Dismantling/Assembly 101
6.1 Introduction 102
6.2 Feed and discharge device 104
6.3 Machine top part (with large cyclone) 106
6.4 Machine top part (with small cyclone) 108
6.5 Separator bowl 114
6.6 Machine bottom part 134
6.7 Vertical driving device 138
6.8 Horizontal driving device 156
6.9 Frame feet 170
7 Trouble-Tracing 171
7.1 Mechanical faults 172
7.2 Concentration fault 174
8 Technical Reference 175
8.1 Product description 176
8.2 Technical data 178
8.3 Modification of BTUX to BTAX 180
8.4 Basic size drawing 181
8.5 Basic size drawing 187
8.6 Interface description 192
8.7 Paring disc characteristics 198
8.8 Lubricants 201
8.9 Other drawings 209
8.10 Motor specifications 211
8.11 Cover interlocking kit 219
8.12 Monitoring kit 220

5
8.13 Quality specifications 221
8.14 Machine plates and safety labels 223
8.15 Storage and installation 225

6

7
Read and understand 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.

8

9
1 Read this first
This manual is designed for operators and service
engineers working with the Alfa Laval separator
MBUX 510-34C.
For information concerning the function of the
separator, see chapter ‘‘3 Separator Basics” on
page 19, and chapter ‘‘8 Technical Reference” on
page 175.
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

1 Read this first
10
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.

11
2 Safety Instructions
The centrifuge 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.
G0010421
S0151211

2 Safety Instructions
12
Disintegration hazards
When power cables are connected,
always check direction of motor rotation.
If incorrect, vital rotating parts could
unscrew.
If excessive vibration occurs, stop
separator and keep bowl filled with
liquid during rundown.
Use the separator only for the purpose
and parameter range specified by
Alfa Laval.
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 the large lock ring thread must
not exceed safety limit. -mark on lock
ring must not pass opposite -mark by
more than specified distance.
Inspect regularly for corrosion and
erosion damage. Inspect frequently if
process liquid is corrosive or erosive.
S01512F1
S01512N1
S01512P1
S01512L1
S0151241
S01512G1
S01512H1

13
2 Safety Instructions
Entrapment hazards
Make sure that rotating parts have come
to a complete standstill before starting
any dismantling work.
If there is no braking function the run
down time can exceed two hours.
To avoid accidental start, switch off and
lock power supply before starting any
dismantling work.
Assemble the machine completely
before start. All covers and guards must
be in place.
Electrical hazard
Follow local regulations for electrical
installation and earthing (grounding).
To avoid accidental start, switch off and
lock power supply before starting any
dismantling work.
Crush hazards
Use correct lifting tools and follow lifting
instructions.
Do not work under a hanging load.
S0151261
S01512O1
S0151271
S01512M1
S01512Y1

2 Safety Instructions
14
Noise hazards
Use ear protection in noisy
environments.
Burn hazards
Lubrication oil, machine parts and
various machine surfaces can be hot and
cause burns. Wear protective gloves.
Skin irritation hazards
When using chemical cleaning agents,
make sure you follow the general rules
and suppliers recommendation
regarding ventilation, personnel
protection etc.
Use of lubricants in various situations.
S0151291
S01512A1
S01512D1

15
2 Safety Instructions
Cut hazards
Sharp edges, especially on bowl discs
and threads can cause cuts.
Wear protective gloves.
Flying objects
Risk for accidental release of snap rings
and springs when dismantling and
assembly. Wear safety goggles.
Health hazard
Risk for unhealthy dust when handling
friction blocks/pads. Use a dust mask to
make sure not to inhale any dust.
S01512B1
S01512C1
S01512V1

2 Safety Instructions
16
2.1 Warning signs in text
Pay attention to the safety instructions in this
manual. Below are definitions of the three grades
of warning signs used in the text where there is a
risk for injury to personnel.
DANGER
Type of hazard
DANGER indicates an imminently
hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING
Type of hazard
WARNING indicates a potentially
hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Type of hazard
CAUTION indicates a potentially
hazardous situation which, if not avoided,
may result in minor or moderate injury.
NOTE
NOTE indicates a potentially hazardous
situation which, if not avoided, may result
in property damage.

17
2 Safety Instructions
2.2 Environmental issues
Unpacking
Packing material consists of wood, plastics,
cardboard boxes and in some cases metal straps.
Wood and cardboard boxes can be reused,
recycled or used for energy recovery.
Plastics should be recycled or burnt at a licensed
waste incineration plant.
Metal straps should be sent for material recycling.
Maintenance
During maintenance oil and wear parts in the
machine are replaced.
Oil must be taken care of in agreement with local
regulations.
Rubber and plastics should be burnt at a licensed
waste incineration plant. If not available they
should be disposed to a suitable licensed land fill
site.
Bearings and other metal parts should be sent to
a licensed handler for material recycling.
Seal rings and friction linings should be disposed
to a licensed land fill site. Check your local
regulations.
Worn out or defected electronic parts should be
sent to a licensed handler for material recycling.

2 Safety Instructions
18
2.3 Requirements of
personnel
Only skilled or instructed persons are allowed to
operate the machine, e.g. operating and
maintenance staff.
Skilled person: A person with technical
knowledge or sufficient experience to enable
him or her to perceive risks and to avoid
hazards which electricity/mechanics can
create.
Instructed person: A person adequately
advised or supervised by a skilled person to
enable him or her to perceive risks and to
avoid hazards which electricity/mechanics
can create.
In some cases special skilled personnel may
need to be hired, like electricians and others. In
some of these cases the personnel has to be
certified according to local regulations with
experience of similar types of work.

19
3 Separator Basics
Contents
3.1 Basic principles 20
3.1.1 Factors influencing the separation
result 21
3.2 Definitions 22
3.2.1 Throughput 22
3.2.2 Reception ability 22
3.2.3 Purification 23
3.2.4 Clarification 23
3.2.5 Concentration 23
3.2.6 Sediment/Concentrate 23
3.2.7 Centrate 23
3.3 General description 24
3.3.1 Machine top part with large and small
cyclone 24
3.3.2 Bowl 26
3.3.3 Sediment ejection 28
3.3.4 Safety precautions 29
3.3.5 Machine bottom part 31
3.3.6 Mechanical power transmission 32
3.3.7 Braking function 32
3.3.8 Motor 33
3.3.9 Revolution counter 34
3.4 Liquid flow in the bowl 35
3.4.1 Self-regulating Vortex nozzles 36

3.1 Basic principles 3 Separator Basics
20
3.1 Basic principles
The purpose of separation can be:
to free a liquid of solid particles,
to separate two mutually insoluble liquids with
different densities while removing any solids
presents at the same time,
to separate and concentrate solid particles
from a liquid.
Separation by gravity
A liquid mixture in a stationary bowl will clear
slowly as the heavy particles in the liquid mixture
sink to the bottom under the influence of gravity.
A lighter liquid rises while a heavier liquid and
solids sink.
Continuous separation and sedimentation can be
achieved in a settling tank having outlets
arranged according to the difference in density of
the liquids.
Heavier particles in the liquid mixture will settle
and form a sediment layer on the tank bottom.
Centrifugal separation
In a rapidly rotating bowl, the force of gravity is
replaced by centrifugal force, which can be
thousands of times greater.
Separation and sedimentation is continuous and
happens very quickly.
The centrifugal force in the separator bowl can
achieve in a few seconds what takes many hours
in a tank under influence of gravity.
The separation efficiency is influenced by
changes in the viscosity (separating temperature)
and in the throughput.
G0010711
Sedimentation by gravity
G0010811
Sedimentation in a settling tank, with outlets making it
possible to separate the lighter liquid parts from the
heavier
G0010911
he centrifugal solution