Aquila Pelletizer PE80 User guide
2
Aquila
Triventek
A/S
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Industrivej
9
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Tel.
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Table of contents
1
INTRODUCTION
4
1.1
What
is
dry
Ice?
4
1.2
The
Dry
Ice
Pelletizing
Process
-
How
does
the
Pelletizer
function?
4
1.3
Pellet
Sizes,
Denominations
and
Applications
5
1.4
Storage
Tank
for
Liquid
CO2
supplied
to
the
pelletizer
5
2
SAFETY
6
2.1
Safety
data
for
Carbon
Dioxide
(CO
2
)
6
2.2
Safety
data
for
Pelletizer
PE80
8
3
EQUIPMENT
FOR
OPERATION
9
3.1
Delivery 9
3.2
Equipment 9
3.3
Connecting
the
equipment
9
3.3.1
Power 9
3.3.2
Hoses
10
3.3.3
Important
notice
before
start
10
4
OPERATING
THE
EQUIPMENT
11
4.1
Operation panel
-
Main
menu structure
of
the
PLC
11
4.2
Start-up
sequence
13
4.3
Re-start
sequence
13
4.4
Shut-down
sequence
14
5
ALARM
MESSAGES
15
5.1
Low
inlet
CO
2
error
15
5.2
Motor
protection
error
15
5.3
Power
supply
error
15
5.4
Emergency
stop
message
16
5.5
Low
oil
pressure
16
5.6
Low
oil
level
16
5.7
Error
Co2 16
6
STORING
DRY
ICE
PELLETS
17
7
OPTIMISING
PRODUCTION
OUTPUT
17
8
CHANGING
EXTRUSION
PLATES
17
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Table of contents
9
AUTOMATION
18
9.1
Power
supply
protection
system
18
9.2
Pressure
protection
system
18
9.3
Automatic
stop
when
supply
of
liquid
from
tank
is
closed
18
10
MAINTENANCE
18
10.1
Maintenance
intervals
18
10.2
Removing
the
cover
and
identification
of
main
components
20
10.3
Checking oil level (main oil pump)
20
10.4
Checking
oil
level
(gearbox)
20
10.5
Dismantling
and
inspecting
the
solenoid
valves
21
10.6
Inspection
and
renewal
of
inlet
filter
22
10.7
Inspection
of
the
gas
separator
23
10.8
Inspection
of
CO2
liquid
supply
and
level
sensor
24
11
CLEANING
THE
EQUIPMENT
24
12
STORAGE
24
13
RECOMMENDED
SPARE
PARTS
LIST
25
14
TROUBLESHOOTING
27
15
TECHNICAL
DATA
30
16
EC
DECLARATION
OF
CONFORMITY
31
17
GUARANTEE
32
18
DELIVERY
REPORT
33
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Introduction
We
are
pleased
that
you
have
chosen
the
Pelletizer
PE80
by
Triventek
for
your
company.
This technology is the subject of several pending patent applications worldwide, including US patent application No.
10/363,762 and European patent application No. 01960192.1.
To obtain long and trouble-free operation of the equipment we recommend reading this manual carefully. All new opera-
tors of the equipment should also familiarize themselves with the content of this document.
1.1
What is Dry Ice?
Carbon dioxide is a chemical compound formed by combining one atom of carbon with two atoms of oxygen and is
expressed by the chemical symbol CO
2
. It can exist in three states: a gas, a liquid or as a solid.
Dry ice is solid carbon dioxide (CO
2
). The unique property of carbon dioxide is that at normal, atmospheric pressure
and temperature, it changes state directly from solid to gas without going through a liquid phase. This process, called
sublimation, makes the ice ‘dry’.
Dry ice is stable at (minus) -7ºC 9/-109ºF, at atmospheric pressure. It expands up to 800 times by volume when it subli-
mes, and this property is exploited for instant cooling of food and pharmaceutical products during processing, trans-
portation and storage.
The properties of dry ice are also used for other industrial applications, such as dry ice blasting
(cleaning of machinery through thermal shock).
1.2
The
Dry
Ice
Pelletizing
Process
The Pelletizer takes liquid carbon dioxide from the carbon dioxide storage vessel and feeds it into the main pelletisati-
on chamber. Within the main chamber three injection valves are located to allow the liquid into the three compressing
chambers.
The volume of liquid CO
2
injected into the compressing chambers, and consequently the rate of dry ice production, is
determined by varying the valve opening time.
A sudden pressure and temperature drop occurs when the liquid enters the compression chambers, by which
approxi-
mately 50% transforms into ’carbonic snow’ and about 50% transforms into gas (known as ´revert´ gas).
The revert gas is usually
vented to the atmosphere and lost. However it can be recycled by connecting a Recovery Unit
RE80 to the Pelletizer PE80. Up to 90% of the revert gas can be re-compressed and chilled back to liquid state.
An electrical motor with a gearbox drives a crank shaft and 3 mechanical pistons in order to compress the carbonic
snow that has been retained in the compression chambers. The snow becomes a block of dry ice which is subsequently
pressed through extrusion plates to form ‘spaghetti’ strings. The strings will tend to break at the break line formed by
each compression stroke to make the characteristic ‘pellets’
.
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1.3
Pellet
Sizes,
Denominations
and
Applications
Pellets can be made in a variety of sizes (diameters) for different applications. The size (diameter) of pellets depends on
the size of the holes in the extrusion plate.
A set of 3 extrusion
for manufacturing
pellets of Ø3 mm (1/8”) is provided
with the Pelletizer PE80 as standard. The nominal production capacity of the equipment has been rated with this format.
Production capacity will be marginally different for pellet sizes other than 3 mm.
Size
Denomination
Applications
Ø 1,7 mm
(1/16”)
and
Ø 2,2 mm ( 3/32”)
”Micro-
pellets”
For dry ice blasting (cleaning) of ob-
jects and surfaces. They are used for
cleaning of objects and surfaces with
small cavities and fine patterns that
need to be penetrated with smaller
particles. Micropellets are for instant
use shortly after their production.
Ø 3 mm ( 1/8”)
”Rice
pellets”
/“traditional” pellets /
just “pellets”
For dry ice blasting and for quick coo-
ling of food and biopharmaceutical
products. Especially used in wineries
during the vintage season, in order
to
prevent premature fermentation of the
grapes.
Rice pellets (Ø3 mm) are used for the
vast majority of dry ice blasting / clea-
ning applications and should be used
no later than 3 days after production
in order to preserve the needed quality
and density.
Ø 8 mm ( 5/16”)
and
Ø 16 mm ( 5/8”)
”Nugget”
For cold chain applications (trans-
portation and conservation of food
and biopharmaceutical products).
Nuggets are mainly used for cooling
applications since the reduced ratio
of surface area to mass, reduces the
rate of sublimation. so that the last for
a longer period of time, before they
evaporate.
1.4
Storage
Tank
for
Liquid
CO
2
Dry
ice
manufacturing
starts
with
liquid
carbon
dioxide
flowing
to
the
pelletizer
from
a
storage
tank
where
The
liquid
is
held under pressures between 14-23 bar
(200-330 psi)
The
PE80’
Pelletizer’s
nominal
production
capacity
is
rated
at
a
pressure
of
18
bar
(260
psi).
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Safety
3.1
Safety
data
for
carbon
dioxide
(CO
2
)
Hazards
identification
Liquid
Liquid carbon dioxide is stored in pressure vessels and must be handled according to the vessel manufacturers´ and the
carbon dioxide suppliers´ instructions.
•
Liquid
carbon
dioxide
must
be
stored
in
insulated
or
refrigerated
vessels
designed
for
liquid
carbon
dioxide.
•
Liquid
carbon
dioxide
is
stored
and
handled
under
pressure
and
care
must
be
taken.
•
Precautions must be taken to when mounting and dismounting the hose for liquid carbon dioxide. The liquid
may be under pressure and can spray into the surrounding area, forming dry ice and causing frostbite and eye
damage.
Solid
Contact
with
product
may
cause
cold
burns
or
frostbite
due
to
the
low
temperature
at
(minus)
-79ºC/-109ºF
Solid dry ice sublimes
into gas.
This can
cause pressure
to build
up in
e.g. a
container which is not
suitably vented.
First
aid
measures
If
contact
with
eyes:
immediately
flush
eyes
thoroughly
with
water
for
at
least
15
minutes.
In case of frostbite, spray with tepid water for at least 15 minutes. Apply a sterile dressing.
Obtain medical assistance.
Inhalation
of
sublimated
CO
2
(gas)
CO
2
is
heavier
than
air
and
may
accumulate
to
hazardous
levels
in
an
unventilated
enclosed
area
such
as
a
tank,
silo
or
pit. Always ensure adequate natural or mechanical ventilation or breathing apparatus in any hazardous area such as a
tank, silo or pit.
CO
2
is odorless therefore use always a CO
2
detector in working areas.
Low
concentrations
of
CO
2
cause
increased
respiration
and
headache.
In high concentrations carbon dioxide gas can cause asphyxiation by displacing the oxygen required for breathing.
Symptoms may include loss of mobility or consciousness. Victim may not be aware of asphyxiation.
First
aid
measures
Remove victim to uncontaminated area, the rescuer should wear breathing apparatus e.g. an emergency breathing air
bottle and mask to ensure that he/she does not also fall victim to asphyxiation.
Keep
victim
warm
and
rested.
Call
a
doctor.
Apply
artificial
respiration
if
breathing
has
stopped.
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Exposure
controls
/
personal
protection
•
Exposure
limit:
5000ppm
The
normal
concentration
of
CO
2
in
the
atmosphere
is
300ppm.
•
Personal protection:
Protect eyes, face and skin from contact with solid product. Protect skin, especially hands,
from cold by wearing insulated gloves.
Transport
information
Avoid transport of carbon dioxide in solid, liquid or gas phase on vehicles where the load space is not separated from
the driver’s compartment.
Ensure vehicle driver is aware of the potential hazards of the load and knows what to do in the event of an accident or an
emergency.
Before transporting product containers ensure that they are firmly secured and that adequate ventilation is provided.
The
EU
Transport
of
Pressure
Equipment
Directive
(TPED)
regulates
the
design,
manufacture
and
usage
protocols
for
pressure vessels which must be suitable to withstand the mechanical interference caused by transportation, and to
maintain a sufficient margin of safety in case of accident.
Handling
and
storage
Refer
to
supplier’s
container
handling
instructions.
Keep dry ice container in a well-ventilated place. A large gas vessel is usually located outdoors in order to minimize
the impact of any unplanned gas release, to facilitate refilling from a road tanker, and to minimize the effect of gas loss
during re-filling.
Training
The hazard of asphyxiation can be overlooked and must be stressed during operator training. Before using dry ice in
any new process or experiment, a thorough material compatibility and safety study should be carried out.
Ensure
all
national
/
local
regulations
are
observed.
The
European
Industrial
Gas
Association
(EIGA),
see
www.eiga.org/,
provides useful background material and guides to good practice.
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2.2
Safety
data
for
Pelletizer
PE80
Always use the following safety precautions.
Face protection or goggles
Wear protective goggles or face protection when operating the equipment,
in particular to guard against ‘shooting’ pellets during initial start-up of the
machine.
Ear
protection
Always wear adequate hearing protection. During initial start-up, when the
chamber inlet valves are working ‘dry’, noise levels up to 85 dB(A) may
be experienced. During normal dry ice production noise level drops to 76
dB
Protective
gloves
Always use suitably insulated protective gloves when handling dry ice, or
cold parts of the machinery. Contact with product may cause cold burns or
frostbite.
Breathing
apparatus
Where sufficient ventilation, either naturally or by mechanical means, can-
not be provided, then a suitable supply of breathing air should be arranged.
It is also recommended that an emergency breathing air bottle and mask be
provided in the vicinity of any carbon dioxide operations. The emergency
apparatus is for use by the rescuer in case of any incapacitation of a person
in an area where carbon dioxide has accumulated and could cause asphyxia-
tion to the rescuer.
Inhalation
of
vaporized
CO
2
In insufficiently ventilated rooms an increased concentration of CO2might
lead to breathing difficulties as well as to suffocation. Always ensure a sup-
ply of fresh air in enclosed rooms. A CO
2
detector should be used to confirm
safe conditions. Where necessary, use a breathing mask with suitable fresh
air supply.
As CO
2
gas is heavier than air, please be aware of CO
2
build-up in lower
working areas.
Low
temperature
The dry ice pellets’ temperature is -79°C/-109ºF and can therefore cause
severe freeze burns. Do not touch or permit direct contact with dry ice for
any extended period. Use protective clothing and gloves. Ensure that pellets
do not become lodged underneath clothing or other protective equipment.
Note: parts of the Pelletizer may become extremely cold due to contact with
the dry ice (e.g. the extrusion plates and chamber block) or cold liquid (e.g.
hose couplings).
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Preparations
3.1
Delivery
Transport
After the Pelletizer PE80 has been delivered, it must be checked for damage which may have occurred during transport.
If necessary, the transport company must be informed to register the damage.
Check that all parts described on the delivery note have been delivered. The body of the Pelletizer can be removed from
its stand and mounted on a wall or other framework to suit local operations. The operation panel box is detachable on a
flexible cable and can be positioned to suit local layout.
3.2
Equipment
The
Pelletizer
PE80
by
Aquila
Triventek
consists
of
the
following
items:
•
Pelletizer
•
1
x
5m/16’5”
of
16
mm/0.63”
insulated
hose
for
liquid
CO
2
supply with 3/8” BSP connectors at both ends.
•
Filter
for
liquid
CO
2
•
Noise
damper
for
gas
outlet
3.3
The
equipment
is
connected
in
the
following
way:
3.3.1
Power
Connect a power supply cable to the socket at the PE80. Use a phase
inverter at socket if needed. Only three poles and earth is used.
Neutral
is
not
needed.
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6
1
3.3.2
Hoses
The hose for the liquid CO
2
is connected to the pelletizer at the
“LIQUID” inlet (see 1).
2
The noise damper is already connected on to the outlet for pressure
compensation to a recovery unit.
5 3
To
maintain
a
suitable
pressure
at
the
vessel
during
operation
(14-23 bar, 188-362 psi), adjust the pressure at the regulator on the
vessel. 4
For
connection
to
the
Recovery
Unit
RE80:
please see the manual for the Recovery
Unit.
3.3.3
Important
notice
before
start
up
Make sure that all electrical and CO
2
connections are
correct and that you have read the safety article 2
section 2 and this manual entirely.
1:
Liquid
CO
2
filter
2:
Chamber
pressure
3:
Injection
pressure
4:
Tank
pressure
5:
Decompressing
unit
after
electrical
CO
2
valve
6:
Decompressing inlet filter and CO
2
inlet hose
(Remember to close tank valve)
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Operating
the
equipment
4.1
Operation
panel
Operation buttons:
1.
Start button
2.
Stop button (For short periods 3-5min)
3.
Emergency button
4.
Display
N.B.:
NEVER
use
the
emergency
stop
button
as
a
means
to
make
a
process
stop
to
the
machine
–
ONLY
use
it
in
case
of
an
emergency
since
the
machine
can
be
damaged.
1
3
3
4
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Main menu structure
1. Pressures in the pelletizer
2. Adjustment of capacity
3. Hour counter
4. Info
5. Input / output status on transmitters
6. Home screen button
7. Settings
8. Logo with time and date
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2
3
8
7
6
4
5
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S
ub menus:
When an alarm is present, this message will appear. Press the screen (left picture) to enter the alarm menu.
When the alarm has been corrected, press “reset” to clear the error. Then press the “Home” button
to enter the main menu.
If the pelletizers have not been stopped for more than 5 min, it can be restarted.
If longer please see the restart description in this manual.
Input / output status:
This menu shows the mA signal on each of the four pressure transmitters.
This is a help to trouble shooting.
If the pelletizer is completely empty for CO2 all transmitters will show approx. 4mA.
If the reading is above this, the pressure transmitters are faulty and should be changed
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4.2
Start-up
sequence
1.
Power supply must be plugged in and turned on
2.
Open the liquid CO
2
supply –slowly -
to avoid creating an ice block in the line
3.
Press
the
START
button
and
the
LCO
2
valve
will
open
automatically.
4.
Filling
sequence
will
begin.
Display
shows
“
Pelletizer
is
starting,
please
wait”
5.
When
start-up
sequence
is
finished
the
PE80
will
start
production
automatically.
6.
Set the CO
2
injection
level
to
100%
in
“Pellets
menu”
(only
necessary
for
first
time
use)
7.
The
Pelletizer
will
now
begin
to
inject
liquid
CO
2
and
produce
dry
ice
pellets
8.
During the first period of the start-up, dry ice as snow will be blown out of the extrusion plate(s) at the front of
the Pelletizer. After a few minutes a solid ice block will be formed inside the Pelletizer chamber (not necessarily
simultaneously) and the production of pellets will begin.
Some
pellets
will
be
’shot’
out
at
speed,
in
the
beginning,
until
the
ice
production
has
stabilized.
EXTREMELY
IMPORTANT
INFORMATION
4.3
Re-start
sequence
(for
stops
lasting
longer
than
approx.
5
minutes,
depending
on
local
conditions):
1.
Follow step 1-6 in the Start-up sequence (item 5.2) –if the pelletizer does not
start producing pellets on all 3 extruding plates after approx. 1 minute and only
sprays ice-dust, shut down by pressing the STOP button immediately or you
will damage the machine. (see item 5.4 “Shut down sequence”)
DO
NOT
STOP
BY
USING
THE
EMERGENCY
STOP
BUTTON
There is most probably a water-ice blockage in the press head due to accumulated
humidity.
2.
Remove
the
covering.
3.
Press
head
and
gas
separator
house
is
heated
gently
with
an
electric
heat
gun.
No
other thawing equipment such as burners and similar may be used, otherwise
there will be danger of damaging O-rings and silicone tubing in the machine.
4.
When the press head and the gas separator house is completely dry and free of
ice everywhere, you can safely restart the machine
5.
For large amounts of visible exterior ice at the press head and the gas separator
house, do not attempt to remove the ice with hard blows at the ice - it must be
thawed slowly (see item 3) in order to not damaging the machine.
After
thawing
remember
to
re-mount
the
covering
correctly
before
attempting
to
re-start
once
more.
15
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
4.4
Shut down sequence
1.
Press
the
STOP
button
on
the
operations
panel
2.
The
Pelletizer
will
now
automatically
drain
the
supply
line
3.
When
liquid
line
is
drained
the
unit
will
shut
down
after
approx.
1
minute
4.
Display will show “Pelletizer LOW INLET CO
2
”and the red LED light will light up: This is a normal message
when the Pelletizer has been properly shut down by pressing the STOP button and before the message has
been cleared by pressing ”*”
5.
To stop for a limited period*, press the STOP button on the operations panel.
*NB. Please note that, depending on the level of ambient humidity, stopping for more than approx.
3-5 minutes, brings the risk that humidity will condense onto the dry ice behind the extrusion plate
and cause damage, due to the blockage of the 3 pcs. dies’ holes with water ice, on re-starting.
Many short start/stop sequences add a lot of wear and tear to the pelletizer therefore it is
recommended to operate the pelletizer in long productive sequences.
Local
conditions
may
play
an
important
role.
These conditions must be considered in a commissioning. Selective local rules should be set up between customer and
Aquila Triventek to avoid damage to the machine.
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16
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
Alarm
messages
5.1
Low
inlet
CO
2
error
•
CO2 supply is turned off (could be shut down mode)
•
CO2
tank
is
empty
•
CO2
inlet
filter
is
blocked
Check
the
possible
problems
and
press
“
*
”
to
clear
error
5.2
Motor
protection
error
•
Overload
on
the
main
motor
•
Overload on the oil pump motor
Solution:
•
Check
settings
on
the
protection
devices
•
Check
status
of
motor
protection
device
•
Check load
on
the
motors
if
they correspond
to
the
data
on the
motor label
•
Check
for
loose
connections
at
the
wires
and
terminals
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
5.3
Power
supply
error
•
Wrong
phase
direction
•
Missing
phase
Solution:
•
Check
phase
direction
at
your
installation
•
Check
your
installation
plug
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
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17
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
5.4
Emergency
stop
message
•
Emergency
stop
button
is
pressed
in
•
Deactivate
the
button
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
5.5
Low
oil
pressure
•
Check if oil pump is running
•
Check
for
leakage
in
the
system
•
Broken
oil
pressure
switch
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
5.6
Low
oil
level
•
Check oil level in the oil tank
•
Check
level
sensor
•
Check
for
leakage
in
system
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
5.7
Error CO
2
(No CO
2
supply)
•
Check
the
CO
2
supply
line
•
Open
the
CO
2
supply
•
Check
filter
on
supply
line
When
problem
is
corrected,
press
“
*
”
to
clear
the
error
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18
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
6
Storing dry
ice
pellets
Dry
ice
is
normally
fed
into
insulated
boxes,
directly
into
the
hopper
of
a
blaster
or
feeds
directly
into
a
process
line.
7
Optimizing production output
A Triventek dry-ice hood can be used to minimize
sublimation during production.
The hood is mounted onto the outlet of the Pelletizer and to
an insulated box.
This reduces sublimation losses by up to 10%.
Furthermore, the ingress of humidity is reduced.
8
Changing
extrusion
plates
To change or replace the extrusion plates first remove the 10mm nuts in front of the press chamber, with a 17mm spanner.
Note that the nuts can become very tight if they were fitted when the material was very cold. Keep the nuts lubricated.
Simply
push
out
the
individual
dies
towards
the
back
of
the
plate.
When
making
8-16
mm
pellets,
fit
the
plug
holder
frame
in
front
of
the
press
chamber
by
using
the
retaining
nuts.
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19
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
9
Automation
The
following
operations
and
features
are
automated
9.1
Power supply
protection
system
An automatic relay stops the Pelletizer and displays a message in the display if the voltage is too low, the phases’ order
is wrong or a phase is missing
9.2
Pressure
protection
system
The pressure protection system will stop injection of liquid CO2 to the Pelletizer if the pressure in the revert gas outlet
rises above 0.8 bar/11.6 psi. This means that the production of dry ice stops if the gas blow-off becomes blocked for
some reason.
Note that this will also occur if the Recovery Unit is connected physically but is not powered up since its blow-off will be
inactive
9.3
Automatic
stops
when
supply
of
liquid
CO
2
from
tank
is
closed
See
also
note
above
re
shutdown
procedure.
10
Maintenance
No unauthorized or untrained individuals should access the interior of the machine - it can lead to physical injury or
damage to property.
The electrical and CO
2
supply must be switched off and disconnected before maintenance work begins. If there is,
during the maintenance work, a need for either power or CO
2
supply, it can be connected during the task, provided the
necessary protective equipment is used and there is sufficient ventilation.
The equipment requires a minimum of user-maintenance. Active maintenance by authorized specialist is only necessary
if the performance of the Pelletizer is no longer satisfactory. However, planned preventative maintenance is recommen-
ded (see document “Preventive Maintenance PE80” by Aquila Triventek).
10.1
Maintenance
intervals
Triventek recommend that planned preventative maintenance should be carried out to ensure long-term reliability.
(also see document “Preventive Maintenance PE80” by Aquila Triventek).
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20
Aquila
Triventek
A/S
·
Industrivej
9
·
DK-5580
Nørre
Aaby
·
Tel.
+45
70
22
12
92
·
info@
aquila-triventek.com
·
www.aquila-
triventek.com
Maintenance
PE80
Every 3
months or
600
hours
Every 6
months or
1200
hours
Every 12
months or
2400
hours
Every 24
months or
4800 hours
Inspection of
extrusion dies
x
x
x
x
Visual
inspection
of
hoses
and
hose
clamps
x
x
x
x
Inspection/change
of
liquid
CO
2
inlet
filter
x
x
x
x
Check
oil
level
main
pump
x
x
x
Oil
level
reduction
gear
x
x
x
Inspection
of gas separator
x
x
x
Change
of
extrusion
filters
x
x
x
Inspection
of
valve
heads
injection
x
x
x
Inspection
of
valve
heads
valve
arrangement
x
x
x
Oil
change
main
oil
pump
x
x
Oil
change
reduction
gear
x
x
Replacement
of
valve
heads
-
if
needed
x
x
Function
test
of
motor protection
devises
x
x
Function test of automatic fuses
x
x
Replace
slider
bearing
with
oil
wiper
x
x
Replace
front
slider
bearing
x
x
Inspection of all wire connections
x
Inspection
of
all
Pipe/hose
connections
x
Inspection
of
liquid
CO
2
hose
x
N.B.: Every maintenance or service check should always and only be performed by authorized personal trained by Aquila
Triventek A/S.
Caution:
Before
any
service
or
maintenance
actions,
depressurize
and
turn
off
power
supply.
If
the
machine
has
been
running,
then
allow
it
to
return
to
ambient
temperature
before
performing
service!
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