130100064 Technical Manual T9593-DD-MMC-010.pdf

T9593-DD-MMC-010

REVISION 1

PUBLISHED BY DIRECTION OF COMMANDER MILITARY SEALIFT COMMAND

0910-LP-104-3527 REVISION 1

TECHNICAL MANUAL

INCINERATOR, TYPE AT LAS 800 SL WS P WITH

WEDGE BELT DRIVEN FAN

FOR

USNS LEWIS AND CLARK (T-AKE 1) CLASS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

( ATLAS INCINERATORS A/S)

VORDINGBORG, DENMARKY

N00024-02-C-2300

DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITED.

N60827 Text Box

0910-LP-106-8864

PUBLISHED BY DIRECTION OF COMMANDER MILITARY SEALIFT COMMAND

28 APRIL 2006

0910-LP-104-3527

TECHNICAL MANUAL

INCINERATOR, TYPE ATLAS 800 SL WS P WITH

WEDGE BELT DRIVEN FAN

USNS LEWIS AND CLARK (T-AKE 1) CLASS

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

( ATLAS INCINERATORS A/S)

VORDINGBORG, DENMARKY

N00024-02-C-2300

THIS MANUAL SUPERSEDES MANUAL TMIN T9593-AA-MMC-010 DATED 04/28/06

DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITED.

[FOR REPRODUCTION PURPOSES ONLY 3 ]

N60827 Text Box

0910-LP-106-8864

A

List of Effective Pages Date of original pages is:

Original . . . . . . . . . . . . . . 28 APRIL 2006

REVISION 1 . . . . . . . . . . 20 APRIL 2008

Total number of pages in this publication is 338 consisting of the following:

Page No. * Change No. Page No. * Change No.

Title/A

Pages 1 through 156

* Zero in this column indicates an original page

[FOR REPRODUCTION PURPOSES ONLY 4 ]

INSTRUCTION BOOK

INSTALLATION, OPERATION &

MAINTENANCE

OF INCINERATOR

TYPE ATLAS 800 SL WS P

2600L. SLUDGETANK

T-AKE CLASS

MILITARY SEALIFT

COMMAND

Copyright © 2003 Revision 09.05.2007

[FOR REPRODUCTION PURPOSES ONLY 5 ]

TABLE OF CONTENTS

LIST OF FIGURES: ____________________________________________________________ 5

LIST OF TABLES: _____________________________________________________________ 5

HAZARDOUS WARNINGS: _____________________________________________________ 6

INSTALLATION_______________________________________________________________ 7

1.0 REFERENCES ___________________________________________________________________ 7

2.0 INCINERATOR __________________________________________________________________ 7

3.0 DIESEL OIL SUPPLY - DIESEL OIL TANK___________________________________________ 7

4.0 SLUDGE TANK __________________________________________________________________ 9

5.0 COMPRESSED AIR SUPPLY_______________________________________________________ 9

6.0 FLUE GAS FUNNEL _____________________________________________________________ 10

7.0 ELECTRICAL CABLE CONNECTION TO CONTROL PANEL __________________________ 10

8.0 ADDITIONAL INFORMATION ____________________________________________________ 10

9.0 STORAGE INSTRUCTIONS FOR ATLAS INCINERATORS ____________________________ 11

THE INCINERATOR __________________________________________________________ 12

PRIMARY COMBUSTION CHAMBER_________________________________________________ 12

SECONDARY COMBUSTION CHAMBER _____________________________________________ 12

ADJUSTMENT OF AIR INTAKE NOZZLES ____________________________________________ 12

BASIC PRINCIPLES ATLAS 800 SL WS _________________________________________ 13

PROCESS DIAGRAM _________________________________________________________ 14

DESCRIPTION OF PROCESS __________________________________________________ 15

SOLID WASTE INCINERATION: _____________________________________________________ 15 INCINERATION OF SLUDGE: _______________________________________________________ 16

MAIN DATA _________________________________________________________________ 17

OPERATING INSTRUCTION __________________________________________________ 18

OPERATION _________________________________________________________________________ 18 CONTROL PANEL ____________________________________________________________________ 18 STOP OF THE INCINERATOR __________________________________________________________ 20

CALORIFIC VALUE (CALORIES) ______________________________________________ 22

DIFFERENT TYPES OF FUEL ________________________________________________________ 23

TROUBLE SHOOTING CHART ________________________________________________ 24

WHEN HEATING UP THE INCINERATOR: ____________________________________________ 24

DURING COMBUSTION ____________________________________________________________ 25

SLUDGE DOSING PUMP (6M4) & CIRCULATING PUMP (7M4)___________________________ 30

INSTRUCTION FOR ________________________________________________________________ 31

OPERATION AND MAINTENANCE OF PARTS __________________________________ 31

SCHEME FOR MAINTENANCE ______________________________________________________ 31

INSTRUCTION FOR REPAIR OF REFRACTORY LINING ________________________________ 32

[FOR REPRODUCTION PURPOSES ONLY 6 ]

FUEL OIL PUMPS [PU1] [PU2] _______________________________________________________ 33 ADJUSTMENT OF ELECTRODES. ____________________________________________________ 33 SLUDGE BURNER (B) ______________________________________________________________ 34 SEEPEX PUMPS ___________________________________________________________________ 35 SLUDGE DOSING PUMP (6M4) ______________________________________________________ 36

QUICK CLOSING VALVE FOR SLUDGETANK_________________________________________ 40

QUICK CLOSING VALVE FOR DIESEL OIL TANK _____________________________________ 41

SPARE PARTS _______________________________________________________________ 43

PRIMARY & SECONDARY BURNERS [8M5] [8M3] _____________________________________ 43

SLUDGE BURNER (B) ______________________________________________________________ 44 SLUDGE DOSING PUMP [6M4] ______________________________________________________ 45 SLUDGE CIRCULATION PUMP [7M4] ________________________________________________ 46 6M4 & 7M4 MOTOR ________________________________________________________________ 47 PRIMARY BLOWER (5M4) __________________________________________________________ 50 MILL PUMP (7M2) _________________________________________________________________ 51

TECHNICAL DATA FOR COMPONENTS _______________________________________ 54

21B3 _____________________________________________________________________________ 55 21B5 & 21B7 ______________________________________________________________________ 56 22D2 _____________________________________________________________________________ 57 24S5 & 25S3 & 25S5 & 25S7__________________________________________________________ 61 24S6.1 & 24S7 & 24S8 _______________________________________________________________ 73 24S9 & 25S2 _______________________________________________________________________ 77 31Y4 & 31Y9 & 34Y5 _______________________________________________________________ 80 31Y8 & 33Y5 ______________________________________________________________________ 82 33Y3 _____________________________________________________________________________ 84 33Y8 _____________________________________________________________________________ 88 33Y9 & 33Y10 _____________________________________________________________________ 94 34Y4 ____________________________________________________________________________ 100 35B7 & 35B9 _____________________________________________________________________ 104 BV ______________________________________________________________________________ 112 C2 & C3 & C4 & C6 & C7 ___________________________________________________________ 114 C8 ______________________________________________________________________________ 116 CV ______________________________________________________________________________ 120 M1 & M2 & M3 & M4 & M5 & M6 ___________________________________________________ 122 OL ______________________________________________________________________________ 124 POV 1 & POV 2 ___________________________________________________________________ 128 SCV _____________________________________________________________________________ 134 TR ______________________________________________________________________________ 135 25S6 & 25S7 & 25S9 & 25S10________________________________________________________ 141

[FOR REPRODUCTION PURPOSES ONLY 7 ]

DV15 & DV25 ____________________________________________________________________ 142 5M4 _____________________________________________________________________________ 143

APPENDIX__________________________________________________________________ 154

LSI _________________________________________________________________________ 154 LIST OF SUPPLIERS_______________________________________________________________ 154 SPARE PARTS ____________________________________________________________________ 154

DRAWINGS :___________________________________________________________________

DIMENSION DRAWING OF INCINERATOR ON SKID 26N10034 ______________________________

DIMENSION DRAWING OF SLUDGETANK 26S20054 _______________________________________

DIMENSION DRAWING OF DIESEL OIL TANK 26N20209 ___________________________________ PIPE DIAGRAM 26I33013 ________________________________________________________________ THERMO ELEMENT 26N40004 ___________________________________________________________ COMPONENT DRAWING 26N10039 _______________________________________________________ LIQUID LEVEL INDICATOR 26N40047 ____________________________________________________ LEVEL SWITCH 26N30157 _______________________________________________________________ MAGNETIC LEVEL INDICATOR 26N40048_________________________________________________ MIXING CHAMBER 26P30358 ____________________________________________________________ SIGHT GLASS WITH COVER AND GASKET 26N40055_______________________________________

ELECTRICAL DIAGRAMS FOR INCINERATOR_____________________________________________

ELECTRICAL DIAGRAMS FOR FLUE GAS FAN ____________________________________________

LIST OF SUPPLIERS____________________________________________________________

[FOR REPRODUCTION PURPOSES ONLY 8 ]

List of Figures:

Fig. 1: Basic Principles Page : 13 Fig. 2: Process Diagram Page : 14 Fig. 3: Control Panel Display Page : 18 Fig.4: Warning Plate Page : 21 Fig. 5: Fuel Oil Pumps Page : 33 Fig. 6: Adjustment of Burner Electrodes Page : 33 Fig. 7: Sludge Burner Page : 34 Fig. 8: Seepex Pump Greases Page : 35 Fig. 9: Seepex Pumps Direction of Rotation Page : 35 Fig. 10: Sludge Dosing Pump Capacity Curve Page : 37 Fig. 11: Circulation Pump Capacity Curve Page : 39 Fig. 12: Quick closing valve for sludgetank Page : 40 Fig. 13: Loading of quick closing valve Page : 41 Fig. 14: Quick closing valve for diesel oil tank Page : 42

List of Tables:

Table 1: Calorific Values Page : 22 Table 2: Sludge Dosing and Circulation Pump Troubleshooting Chart Page : 30 Table 3: Scheme for Maintenance Page : 31

[FOR REPRODUCTION PURPOSES ONLY 9 ]

Hazardous Warnings:

The incinerator must be operated strictly in accordance with the guidelines in this manual.

Lack of doing so might be seriously detrimental for the personnel!

General warning:

If the emergency stop has been activated, 2 quick closing valves on the diesel oil tank and 1 quick closing valve on the sludge tank have to be manually reset. Any attempt to run the plant without resetting these will result in dry-running of the pumps with damage of the pumps as a result.

[FOR REPRODUCTION PURPOSES ONLY 10 ]

INSTALLATION

1.0 REFERENCES

For capacity, dimensions and connections we refer to:

a) – Main Data (page 14)

b) – Technical Data, Components (page 14)

c) - Dimension drawing(Appendix, drawing 26N10034)

d) - Pipe diagram (Appendix, drawing 26I33013)

e) - Electrical-diagram (Appendix, see electrically drawings)

2.0 INCINERATOR

a) Installation of Incinerator: No special tools or instruments required.

b) Mounting the thermocouple (Drawing no. of thermocouple is 26N40004, enclosed in Appendix) (21B3 on the Pipe diagram in the Appendix): in the funnel minimum 2,5 m from the incinerator casing outlet according to IMO rules

The Incinerator should be installed and placed according to the rules of the classification societies and to the National Shipping Boards.

When installing the Incinerator the following points have to be considered:

- If welding the skid to the deck, remember to disconnect connections to the PLC as well as the flame control units (LFE 10)

- Lay-out of the funnel giving minimum of counter pressure

- Do not connect the welding electrodes to the electrical control panel.

- As few vibrations as possible.

- Transportation of the solid waste.

In front of the feeding door a space of app. 1.5 m must be foreseen for feeding of refuse bags. In front of the ash door it must be possible to remove the ashes.

Service area is required for handling the door of the control panel, to inspect and maintain the primary and secondary burner, the sludge pump and the valves. Free space on the top of the Incinerator is required for dismounting the burners. (approx. 700 mm from top of burner)

In the rear, it must be possible to adjust the air nozzles. The free space at the air intake for the main-blower must not decrease the area for the air intake to the blower.

The total air consumption of the Incinerator is app. 7.300 Nm3/h

In order to obtain a proper operation of the Incinerator it is important to have this air-flow available.

3.0 DIESEL OIL SUPPLY - DIESEL OIL TANK

It is advantageous to install a strainer in the diesel oil supply line to the tank in order to avoid any blocking of the diesel oil piping. The primary and secondary burners are provided with strainers built into the pumps. The oil pumps of the primary and secondary burners are gear wheel pumps, which constantly circulate the oil from and to the fuel tank. Approximately 5-10 times more diesel oil is circulated than is actually consumed.

[FOR REPRODUCTION PURPOSES ONLY 11 ]

For connections for filling and ventilation of the diesel oil tank, see dimension drawing 26N20209 in the Appendix.

REFERENCES

For capacity, dimensions and connections we refer to:

Dimension drawing (Appendix, drawing 26N20209) Pipe diagram (Appendix, drawing 26I33013) Diagrams for control panel (Appendix, See electrically drawings)

The diesel oil tank is provided with:

a. Low level switch (25S9) for alarm of “low level diesel oil tank” and stopping the Incinerator when the tank is empty. The switchpoint (not adjustable) is exactly when the float is horizontal.

b. High level switch (25S10) for alarm of “high level diesel oil tank”. The switchpoint (not adjustable) is exactly when the float is horizontal.

c. Flat bar level indicator for visual indication of the diesel oil level.

d. Quick closing valves (QCV’s) released with compressed air, is to be remotely closed from outside the room, but can also be closed manually. WARNING: Care should be taken, as when these valves are closed, the burner diesel oil pumps (PU1 and PU2) will run dry and can be damaged.

[FOR REPRODUCTION PURPOSES ONLY 12 ]

4.0 SLUDGE TANK

For connections for filling and ventilation of the sludge tank, see dimension drawing 26S20054 in the Appendix.

REFERENCES

For capacity, dimensions and connections we refer to:

Technical data of components (page 14) Dimension drawing (Appendix, drawing 26S20054) Pipe diagram (Appendix, drawing 26I33013) Diagrams for control panel (Appendix, see electrically drawings)

The sludge tank is provided with:

a. Low level switch for alarm of “low level sludge tank” and stopping the Incinerator when the tank is empty. The switch point (not adjustable) is exactly when the float is horizontal.

b. High level switch for alarm of “high level sludgetank”. The switch point (not adjustable) is exactly when the float is horizontal.

c. Mill pump (7M2) agitation and homogenisation of the sludge contents. The pump is a centrifugal pump with the impeller equipped with knives for comminution of particles in the sludge. The pump body and impeller are made of cast iron, the shaft of stainless steel. The pump is coupled directly to an electric motor.

d. Circulation pump (7M4) for transportation of sludge from sludge tank to Incinerator. The pump is a self-priming positive pump with cast iron body, rotating parts of hard-chromed steel and a stator of synthetic rubber. The pump is coupled directly to a helical geared motor.

e. Alarm thermostat (25S8) for "Alarm high temperature oil sludge ". Thermostat FACTORY PRE-SET

INTERNALLY at 80oC.

f. Alarm thermostat (24S4) for "Alarm low temperature oil sludge ". Thermostat FACTORY PRE-SET INTERNALLY at 40oC.

g. Thermometer (T) for visual indication of oil sludge temperature in sludge tank. Thermometer range 0

- 120oC. Depending on the composition of the slude, the temperature should read 60oC – 80oC.

h. Magnetic level indicator for visual indication of the sludge level.

i. Quick closing valve (QCV) released with compressed air, is to be remote closed from outside the room, but can also be closed manually. WARNING: Care should be taken, as when this valve is closed, the sludge circulation pump (7M4) will run dry and be damaged.

5.0 COMPRESSED AIR SUPPLY

For supply of compressed air to the Incinerator, see dimension drawing (Appendix, drawing 26N10034) of the incinerator skid. The compressed air is needed for the sludge burner, for dampers, and quick closing valves, see pipe diagram (Appendix, drawing 26I33013) and technical data page 14 for required pressure and consumption. To avoid any blocking of the air pipes, a strainer (item OL, drawing 26I33013) is installed in the air supply piping system.

[FOR REPRODUCTION PURPOSES ONLY 13 ]

6.0 FLUE GAS FUNNEL

For the dimension of the funnel connection, see dimension drawing in Appendix, drawing no. 26N10034.

Max. counter pressure in the funnel, incl. outlet loss, is to be NOT more than 490 Pa (60 mm WG), which the incinerator itself can overcome, plus the 80 mm WG the flue gas fan can overcome, in total 140 mm WG including the free outlet pressure drop.

To obtain sufficient draught in the Incinerator, it is recommended to avoid too many sharp bends in the funnel.

Thermocouple (Appendix, drawing no. 26N40004, item 21B3 on drawing 26I33013) is supplied loose for mounting in funnel.

7.0 ELECTRICAL CABLE CONNECTION TO CONTROL PANEL

The power cable is connected directly to the control panel of the Incinerator. For cable entry, see arrangement of control panel (electrical diagrams). The following connections are to be connected with the terminal row in the control panel:

- Emergency stop

- Power supply

- Remote alarms

- Thermocouple in funnel (high flue gas temperature)

8.0 ADDITIONAL INFORMATION

Protection against Low Voltage:

It is the responsibility of the customer to ensure that no abnormal operation of the Incinerator occurs due to low voltage. In general, a ship's generator system is secured against low voltage. However, if this is not the case, the customer must design their electrical system so that the Incinerator will not shut down at periods of low voltage. The tolerance of the voltage is ±5 %.

Black out:

The power supply to the Incinerator must be turned on immediate after black out. The cooling programme of the Incinerator will then automatically be activated.

In case of a black out of more than 5 to 7 minutes the possibility of damaging the Incinerator is very high.

In case the emergency switch board is hooked up to the main supply of the Incinerator, the plant will start at cooling program until the temperature reach 100 °C and/or until manual reset at the electric panel.

[FOR REPRODUCTION PURPOSES ONLY 14 ]

9.0 STORAGE INSTRUCTIONS FOR ATLAS INCINERATORS

ATLAS Incinerators standard and the storage environmental conditions must be as follows:

Air temperature: 0oC to + 50oC, temp. drop max. 10oC/h

Humidity: 0-75% relative

Wind: Below 10 m/sec.

Shocks: Below 1 g. acceleration in all directions

El-panel must be stored in airtight packing. Before packing the EL-panel must equipped with some bags “Silica gel” inside in order to absorb possible humidity.

The pumps are not to be turned.

After elapse of storage period, all bolted gaskets must be tightened.

The Incinerator must only be handled by fork truck or by the lifting beam, and must not be exposed to mechanical damages.

Storage period: According to agreement.

The surface must not be heated to above 50oC by solar radiation or other sources.

The Incinerator must not be exposed prolonged by sea water spray or rain and must not be hosed down or similarly expose. Care to be taken for storage under roof.

After 12 month’s storage the lining has to be heated up and dried-up acc. to Atlas Incinerators Instructions.

[FOR REPRODUCTION PURPOSES ONLY 15 ]

THE INCINERATOR

The Atlas Incinerator is controlled by a PLC-unit, which by a speed control unit automatically adjusts the sludge feeding capacity.

The Incinerator is designed with a primary combustion chamber for burning sludge oil and/or solid waste, and two secondary combustion chambers for burning un-combusted exhaust gases. The primary and first secondary combustion chamber is equipped with a diesel oil burner called primary burner and secondary burner respectively.

The Atlas Incinerator is designed to incinerate solid waste and all types of combustible non-explosive oil sludge with a flash point of min. 60°C, without being a nuisance to the surroundings. The Incinerator is made as a compact plant of the multi-chamber design.

PRIMARY COMBUSTION CHAMBER

The Incinerator is designed to combust solid waste and/or sludge oil. The heat from the primary burner will dry out and start burning the solid waste and/or ignite the sludge oil. The very large heat transmission area in the combustion chamber optimises the drying and burning of the solid waste.

SECONDARY COMBUSTION CHAMBER

The primary and the two secondary chambers are separated by a wall made of ceramic heavy duty refractory. In the secondary combustion chambers, the gases from the primary combustion chamber will be combusted definitively.

ADJUSTMENT OF AIR INTAKE NOZZLES

The incinerator is provided with 8 air nozzles, 3 on the front side, 3 on the back side, 2 on the end side (one for each of the secondary combustion chambers) and 1 on the top at the flue gas inlet to the secondary combustion chambers. The purpose of the nozzles is to supply sufficient air to the combustion process, especially when burning solid waste, and further to secure a total burn out of the flue gases in the secondary combustion chambers.

Factory settings: The nozzles are adjusted to max. sludge burning capacity, without burning solid waste. This setting can be found by closing the nozzles by turning them clockwise, and then turn them counter clockwise a ¼ round.

Adjustment on board: Depending on the layout of the funnel and depending on the amount and type of solid waste burned, the nozzles might require readjustment. If no measuring tool for measuring the soot number is available, please observe if there is coming dark smoke out of the stack. If so, then open the air nozzles in the primary combustion chamber until it stops.

If the exhaust gas temperature is too high, or if sparks are developed, this can be overcomed by opening the air nozzles in the secondary chambers.

[FOR REPRODUCTION PURPOSES ONLY 16 ]

BASIC PRINCIPLES ATLAS 800 SL WS

Sludge Burner9.

Combustion Air Inlets Oil Sludge Mixing Tank

Sludge Dosing Pump

Double Wall for Air Cooling

Compressed Air Inlet

Sludge Oil Ventilation Outlet

Diesel Oil Ventilation Outlet

Electrical Power Supply

Yard pipe connection

Steam Inletb.

h.

g.

e.

d.

Steam Outlet

Diesel Oil Inlet

Flue Gas Outleti.

f.

c.

a.

19.

18.

17.

16.

15.

14.

13.

12.

11.

10.

CONNECTIONS:

Mill Pump Circulation Pump Compressed Air

Heating Element Diesel Oil Tank Damper

Sludge Oil Inlet

1.

6.

c.

b.

17.

12.

13. 14 h.

a.

d.

18.

5.

3.

10.

11.

2.

9.5.

4.

e.

f.

Combustion Chamber Afterburning Chamber Second Afterburning Chamber Oil Burner with Built-in Pump

Induced Draught Air Ejector8.

7.

6.

5.

4.

3.

2.

1.

COMPONENTS:

Charging Door

Ash Cleaning Door Air Blower

15.

g.

16.

8.

7.

19.

i.

j. k.

Drain Sludge Tankj.

k. Drain Diesel Oil Tank

20.

21.

Feeding Door20.

21. Sluice l.

l. Overflow Sludge Tank m.

m. Overflow Diesel Oil Tank

Figure 1

[FOR REPRODUCTION PURPOSES ONLY 17 ]

The Incinerator is delivered with the following built-on main components:

-Air blower supplying air for the induced draught air ejector, cooling air and combustion air.

-Sludge burner

-Sludge pump

-Primary burner for primary combustion chamber

-Secondary burner for secondary combustion chamber

-Control panel

-Thermocouples for detecting primary and secondary combustion chamber temperatures and alarms on PLC display

-Internal electric-cable, oil/air pipes and valves

-Semi-automatic sluice

Supplied loose for installation in funnel:

Thermocouple for detecting high flue gas temperature and alarm

As a guide to understand the function of the Incinerator, see process diagram and pipe diagram in this instruction book

PROCESS DIAGRAM

100° C

200° C

400° C

300° C

600° C

500° C

700° C

800° C

1100° C

1000° C

900° C

830° C

850° C 930° C

950° C

1050° C

VH, Primary blower

VH, Primary blower (cooling)

8M3, Pre-purging

8M3, Flame control

8M3, Burning

8M5, Pre-purging

8M5, Burning

B, Sludgeburner

8M5, Flame control

30 Sec.

30 Sec.

Running

Running

On

Off

On

On

On

On

Operating

Start

Figure 2

[FOR REPRODUCTION PURPOSES ONLY 18 ]

DESCRIPTION OF PROCESS

SOLID WASTE INCINERATION:

STEP 1 – START OF INCINERATOR

Process timer, primary burner blower and secondary burner blower start.

STEP 2 – START OF PREHEATING

After START OF THE INCINERATOR and 30 sec. pre-purging time, the secondary burner (8M3) in the secondary combustion chamber will start.

STEP 3 – FLAME CONTROL

The flame control circuit is continuously activated, monitoring the output from a flame detector. After start up the burner is ignited or turned off, according to the temperature in the chamber.

In case of flame failure, the alarm will be activated after approx. 1 sec.

STEP 4 – START OF COMBUSTION

When the temperature in the secondary combustion chamber has reached 400 °C (752 °F) the primary burner in the primary combustion chamber ignites and starts to burn diesel oil. The secondary burner continues to burn. The primary burner, sludge burner and secondary burner are equipped with flame controls which are continuously activated, monitoring the output from the flame detectors.

When the temperature has reached 600 oC combustion of solid waste fed into the primary combustion chamber will give a clean incineration.

STEP 5 – STOP OF PREHEATING IN THE SECONDARY COMBUSTION CHAMBER

When the temperature in the secondary combustion chamber has reached 930 °C (1,706 °F) the ignition of the secondary burner will stop and the solenoid valve on the diesel oil pipe is closed. The blower is continuously operating.

STEP 6 – RE-START HEATING IN THE SECONDARY COMBUSTION CHAMBER

If the temperature drops below 830 °C (1,526 °F) the secondary burner re-starts.

STEP 7 – STOP OF COMBUSTION

Stop of combustion stops the supply of diesel oil to primary and secondary burner.

Primary blower, primary burner blower and secondary burner blower, are working on cooling programme.

STEP 8 – STOP OF INCINERATOR

The cooling programme stops when the temperature in the Incinerator is below 100 °C (212 °F).

When the Incinerator has stopped, switch off the main switch on the control panel after the blower has been off for 30 minutes.

[FOR REPRODUCTION PURPOSES ONLY 19 ]

INCINERATION OF SLUDGE:

STEP 1 – START OF INCINERATOR

Process timer, primary burner blower and secondary burner blower start.

STEP 2 – START OF PREHEATING

After START OF THE INCINERATOR and 30 sec. prepurging time, the secondary burner (8M3) in the secondary combustion chamber will start.

STEP 3 – FLAME CONTROL

The flame control is continuously activated, monitoring the output from a flame detector. After start up the burner is ignited or turned off, according to the temperature in the chamber.

In case of flame failure, the alarm will be activated after approx. 1 sec.

STEP 4 – START OF COMBUSTION

When the temperature in the secondary combustion chamber has reached 400 °C (752 °F) the primary burner in the primary combustion chamber will ignite and start to burn diesel oil. When the temperature has reached 600 °C (1.112 °F) sludge is supplied to the sludge burner which automatically operates within the set-points 850 – 950 °C (1,562 – 1,742 °F). When the temperature reaches 810oC the ignition of the primary burner will stop and the solenoid valve on the diesel oil pipe is closed. The primary blower continues operating.

The secondary burner continues to burn.

STEP 5 – STOP OF PREHEATING IN THE SECONDARY COMBUSTION CHAMBER

When the temperature in the secondary combustion chamber has reached 930 °C (1,706 °F) the ignition of the secondary burner will stop and the solenoid valve on the diesel oil pipe is closed. The blower is continues operating.

STEP 6 – RE-START HEATING IN THE SECONDARY COMBUSTION CHAMBER

If the temperature drops below 830 °C (1,526 °F) the secondary burner re-start.

STEP 7 – RE-START HEATING IN THE PRIMARY COMBUSTION CHAMBER

If the temperature drops below 810 °C (1,490 °F) the diesel oil will be supplied to the burner.

STEP 8 – STOP OF COMBUSTION

STOP OF COMBUSTION stops the supply of diesel oil to primary and secondary burner and stops the sludge oil to the sludge burner.

Primary blower, primary burner blower and secondary burner blower are working on cooling programme.

STEP 9 – STOP OF INCINERATOR

The cooling programme stops when the temperature in the Incinerator is below 100 °C (212 °F).

When the Incinerator has stopped, switch off the main switch on the control panel after the blower has been off for 30 minutes.

[FOR REPRODUCTION PURPOSES ONLY 20 ]

MAIN DATA

3 x 460 V, 60Hz Capacity based on IMO specification

Calorific capacity : 700.000 kcal/h (814 kW)

Oil sludge waste : 95 l/h (max. 140 l/h)

Solid waste : Max. 100 kg/h or any simultaneous combination within the max.

burning capacity of 700.000 kcal/h (814 kW).

Total air consumption incinerator : 7.200 Nm³/h

Flue gas temperature : 350 °C

Flue gas volume at 350oC : 17.500 m³/h

Compressed air consumption :

Sludge burner : max. 32 Nm³/h Sluice : max. 0,2 Nm3/h

Compressed air pressure : 7-10 bar

Fuel oil : Marine diesel oil Max. 10 cSt at 20 °C The consumption of diesel oil depends on the heat value of the solid waste and the oil sludge.

Funnel diameter to be calculated according to maximum counter pressure. Max. counter Pres-sure in funnel incl. outlet loss : 590 Pa (60 mm W.G.)

Technical data components

Primary air blower (5M4) Is a high pressure centrifugal fan of the welded design with direct drive.

Type air blower : MT 555(600)-310/D Capacity : 7.200 Nm³/h Static pressure : 6.375 Pa (650 mm WG) Number of revolutions : 3.525 RPM Motor : 25,3 kW

Sludge dosing pump (6M4) Is a self-priming positive displacement pump with an frequency controlled gear motor.

Type pump : 025-6LMD Operational capacity :

(Limits by frequency controller) : 28-131 l/h Head : 2 Bar Gear ratio : 29-132 RPM Gear type : Gear-motor Motor : 0,3 kW

Primary burner (8M5) Is a fully automatic high pressure oil burner.

Type burner : DH 160 E2 Type oil pump : BFP 21 L5 Fuel oil : Marine diesel oil Capacity : 17 l/h Motor : 0,13 kW

Secondary burner (8M3) Is a fully automatic high pressure oil burner.

Type burner : DH 160 E2 Type oil pump : BFP 21 L5 Fuel oil : Marine diesel oil Capacity : 17 l/h Motor : 0,13 kW

Sludge burner (B) Is a special burner for impurities of max. ø6 mm of the compressed air atomising type made of heat resistant steel.

Control panel CP-1 The control panel is made with a splash-proof cabinet with PLC, built-in control lamps, motor starters, and back-up fuses.

Flue gas fan Motor : 18.5 kW

Standard components with sludgetank (Steam- or thermal oil heated)

Circulation pump (7M4) It is a self-priming positive displacement pump with gear-motor Capacity : 670 l/h Discharge pressure : 2 Bar Motor : 0,9 kW

Mill pump (7M2):

Capacity : 25,8 m3/h Discharge pressure : 0,4 Bar Motor : 4,6 kW

Max. power consumption approx. : 50.5 kW (Incl. sludgetank pumps and flue gas fan)

Demand factor : 1 Alarm : Normally closed circuit

[FOR REPRODUCTION PURPOSES ONLY 21 ]

OPERATING INSTRUCTION

PREPERATION

Preparation for start of the Incinerator

Before start of the Incinerator, the following is to be carried out:

Open all the inlet and outlet valves for diesel oil

Open inlet valve for the pressurised air.

Make sure that there is no hindrance for air admission to primary blower, as well as free flow of flue gas to the outlet.

Make sure that the ash and feeding doors are closed.

Make sure that there is oil sludge in the sludge tank.

Make sure that diesel oil is available in the diesel oil tank

OPERATION

The Incinerator is operated via a control panel and the “START”/“STOP” switch.

A green light indicates that the Incinerator’s main blower is in operation A red light indicates that there is an alarm active on the Incinerator.

The control panel provides opportunity to read off the temperature, to choose the operating mode of the Incinerator and to display alarm texts.

CONTROL PANEL

INDICATES IF OPTIONS AVAILEBLE

ICON TO RIGHT - HIGHER SCREEN NO.

ICON TO LEFT - LOWER SCREEN NO.

DECREMENTS THE SET-POINT

INCREMENTS THE SET-POINT

DISPLAY

RESETS ALARMS

ENTER

Figure 3

The control panel consists of a display and the following five keys.

← - icon to left - lower screen No.

→ - icon to right - higher screen No.

↑ - increments the set-point ↓ - decrements the set-point ENTER - resets alarms

The arrow keys have a red LED, which indicates whether the key has a function on the screen in question.

The following screens can be selected using the and keys.

Screen 1. ATLAS INCINERATOR

MODEL MAXI

[FOR REPRODUCTION PURPOSES ONLY 22 ]

Screen 2. SELECT- SOLID&OIL

FUNCTION: SOLID

When the Incinerator is not in operation a new operation mode can be chosen by using ↑ and ↓ keys, the activated operation mode is marked with ←.

Screen 3. SLUDGE- OFF AUTO

CONTROL: MANUAL

The operating mode of the sludge can be selected using the ↑ and ↓ keys and the active mode is marked by

Screen 4. COMB-PRIM. XXXX°C

TEMP: SECOND XXXX°C

This screen shows the current temperature in the primary and secondary combustion chamber. When the Incinerator is in operation this screen is the DEFAULT SCREEN, if no key has been activated for 5 minutes.

Screen 5. FLUE GAS

TEMPERATURE: XXX°C

This screen shows the current temperature in the flue gas uptake from the combustion chamber.

Screen 6. SLUDGE PUMP

SPEED: XXX%

This screen shows the current speed of the sludge pump in %.

Screen 7. SETPOINT - COMBUSTION

TEMPERATURE: XXXX°

This screen allows you to set the set-point for the combustion temperature, when burning waste oil.

Screen 8. TIME: hh:mm

DATE: dd/mm -yyyy This screen shows the PLC’s system time and date.

Screen 9. LAMP PRESS: ↑

TEST:

This screen allows you to perform the lamp test function by pressing the ↑ key.

Screen 10. VALVES: (-- = Closed) (ON = Open)

Diesel oil to secondary burner 31Y7 / 31Y8 Diesel oil to primary burner 33Y4 / 33Y5 Sludge oil to sludge burner 33Y9 / 33Y10

[FOR REPRODUCTION PURPOSES ONLY 23 ]

STOP OF THE INCINERATOR

Turning the switch to the STOP position stops the Incinerator.

When the switch is turned to the STOP position all open oil valves are closed and the air damper at the primary blower is closed.

The Incinerator cools down.

When the temperature in the combustion chamber is below 100 °C the primary blower, primary burner and the secondary burner is stopped. The ash door is released, and the atomising air valve (solenoid valve)(Appendix, drawing 26I33013 item 24S5) is closed.

[FOR REPRODUCTION PURPOSES ONLY 24 ]

Figure 4

Power loss during operation might cause overheating and conse-heating-up time. Adjust damper in exhaust gas uptake and readjust Too much draught can disturb a constant flame and prolong the

Do not feed the incinerator without min. 10 mm. vacuum in the

Remove ashes when needed and make sure that the air holes for the

Do not burn explosive materials such as closed containers or

WARNING !

INCINERATOR HAS STOPPED.

BEFORE THE COOLING OF THE INCINERATOR IS FINISHED AND THE

DO NOT SWITCH OFF THE MAIN POWER FOR THE CONTROL PANEL

THIS INCINERATOR IS AUTOMATICALLY OPERATED

Max. load per charge of high-calorific materials with explosion-like

Max. load per charge of oil-containing materials, ie. filter cartridges, oily cotton

Failure to observe the below instructions can result i substantial damages to burners

Max. load per hour of solid waste - class II (app. 600 kg./m3):

8)

DO NOT RUN THE PUMPS WITHOUT LIQUID.

quently damage the incinerator.

9) after reaching working conditions.

combustion chamber, check the U-tube (UM).

combustion air are always unblocked combustion, ie. plastics, fisching net, etc:

5)

7)

6)

ATLAS 1200

aerosols.

4)

ATLAS

ATLAS

ATLAS 600

5 kg.

5 kg.

3 kg.

5 kg.

waste, scrapings from centrifuges, etc:

and thermocouples.

ATLAS 1200

600ATLAS

ATLAS

ATLAS

3)

ATLAS

2)

1)

ATLAS

ATLAS

ATLAS

230 kg. / hour 500 litre / charge

5 litre

5 litre 5 litre

3 litre

250 litre / charge 150 litre / charge

350 litre / charge

40 kg. / hour 100 kg. / hour 100 kg. / hour with sluice without sluice

[FOR REPRODUCTION PURPOSES ONLY 25 ]

CALORIFIC VALUE (calories)

Kitchen waste 945 Acetic acid 3,490 Glass fibre 3,615 Wall paper 3,690 Cardboard 3,786 Corrugated paper 3,916 Wrapping paper 4,034 Cellulose 4,200 Cotton 4,216 Chips from joiner’s shop 4,281 Carbon paper 4,361 Shoe factory waste 4,380 Newspaper 4,437 Dry cortex from spruce 4,500 Wool 4,590 Dry cortex from fir 4,750 Telex paper 4,758 Uppers from shoes 4,882 PVC film 5,365 Dry cortex from birch 5,450 Polymeric film 5,542 Tar acid 5,600 Methylated alcohol 5,695 Car motor oil 5,722 Lignin 6,100 Cork waste 6,300 Laminated paper 6,311 Polyuetrene 6,438 Acetone 6,667 Natural rubber 6,672 Disposable plastics 6,783 Bakelite 6,950 Neoprene 7,065 Ethanol 7,400 Nylon 7,573 Car rubber tyres 8,123 Waste oil 8,333 Butane 8,768 ABS plastics 9,200 Pork, lard 9,300 Olive oil 9,335 Turpentine 9,444 Polyethylene 9,700 Paraffin 9,800 Polystyrene 9,840 Benzene/Benzol 10,116 Wax paraffin 10,345 Kerosene 10,500 Glass fibre strengthened by synthetic resin 10,840 White spirit 10,960 Polythene 11,000 Polypropylene 11,040 Polyethylene bottles 11,111

Table 1

IMO defines Solid Waste Class II as follows expressed in percentage:

50% Food waste 50% Rubbish, containing approx. 30% paper, 40% cardboard, 10% rags, 20% plastic.

This mixture will have up to 50% moisture and 7 % incombustible solids.

Refuse consisting of an approx. even mixture of rubbish and garbage by weight. This type of waste is common to passenger ships occupancy and has a calorific value of approx. 2,400 Kcal/kg. (10,000 kJ/kg) as fired.

[FOR REPRODUCTION PURPOSES ONLY 26 ]

DIFFERENT TYPES OF FUEL

Sludge oil consisting of: 75% sludge oil from heavy fuel oil 5% waste lubricating oil 20% emulsified water

Low heating value: 7,600 Kcal/kg (31,800 kJ/kg) Density 0,99 (kg/L)

Diesel oil:

Low heating value: 10,130 Kcal/kg (42,400 kJ/kg) Density 0,84 (kg/L)

[FOR REPRODUCTION PURPOSES ONLY 27 ]

TROUBLE SHOOTING CHART

FAULT LOCATION

INTERRUPTION OF OPERATION AND TROUBLE SHOOTING

ALARM AND FLAME FAILURE

The text “flame failure” will appear in the control panel display. The reason may be:

WHEN HEATING UP THE INCINERATOR:

No diesel oil to the Incinerator:

Check liquid level in the diesel oil tank.

Pressure gauge (M1) (M2) of diesel oil pumps oscillating

Clean filter on diesel oil pump (item F, figure 5 page 33). Check whether suction pipes of diesel oil pumps are tight.

Flame detector (FD) of Incinerator sooted up

Clean the glass with a soft cloth.

Wrong adjustment of ignition electrodes

See instruction for oil burners.

Oil nozzle filter on burners (8M5 OR 8M3) is obstructed

Take out the nozzle and clean the filter (item F, fig. 5 page 33).

Solenoid valves do not open

Check all coils on the solenoid valves with a volt meter and a magnetic stick, or if a magnetick stick is not available dismantle the solenoid and see if it attracks a piece of metal. Check the electric connections.

Sludge burner sooted up

Take out the sludge burner and clean it, - see instruction for sludge burner.

Reset alarm.

[FOR REPRODUCTION PURPOSES ONLY 28 ]

DURING COMBUSTION

Reset alarm and the Incinerator will run again. Watch the sludge dosing pump before a possible new alarm sets in.

If the sludge dosing pump (6M4) is running and no flame can be seen through the sight glass:

The sludge burner is soothed up

Take out the sludge burner and clean it, - see instruction for sludge burner.

Oil sludge valve (POV) is obstructed

Dismantle, inspect and clean if required.

Solenoid valve (33Y8) does not open

Check coil on the solenoid valve with a volt meter and a magnetic stick, or if a magnetic stick is not available dismantle the solenoid and see if it attracts a piece of metal. Check the electric connections.

The self-cleaning strainer (O) is blocked with fibres

Clean the strainer in a bucket with diesel oil and use a wire brush and a screw driver or similar for mechanical cleaning.

No constant sludge circulation in the circulation pipe

The rubber stator of the circulation pump (7M4) is worn out.

See list of spare parts.

The circulation pump is partly blocked.

If the sludge dosing pump (6M4) is not running

The frequency control - ALTIVAR 18 - of the pump (6M4) has failed or there is no start signal from the PLC, reset alarm or switch off the main power and turn it on again after 3 min.

[FOR REPRODUCTION PURPOSES ONLY 29 ]

ALARM AT TOO HIGH TEMPERATURE IN COMBUSTION CHAMBER:

The text “high temperature combustion chamber” will appear in the control panel display and the alarm ‘high temperature Incinerator’ will be shown. The reason can be:

The thermocouple (21B5) has been interrupted

Check the thermocouple visually for deposits and condition. Further, the resistance should be approx.

26 Ohm at 20 degree C if checked with an ohmmeter. Check the cable connections on the temperature transmitter (“flex top”) and the connection cables for any damage.

When operating on SOLID WASTE:

Too much waste is loaded into the incinerator.

ALARM FOR TOO LOW COMBUSTION TEMPERATURE

The text “low temperature combustion” will appear in the control panel display and the alarm ‘low temperature combustion’ will be shown. The reason may be:

No or insufficient quantity of diesel oil

Check the diesel oil level in the diesel oil tank, and refill if required.

Check pressure on diesel oil pump (PU- 1 and -2) by reading pressure gauges M1 and M2. Reading should show approx. 6-12 bar.

If the pressure is normal, the diesel oil nozzles on the burners might be blocked.

Solenoid valves (31Y7)(31Y8)(33Y4)(33Y5)do not open

Check all coils on the solenoid valves with a volt meter and a magnetic stick, or if a magnetic stick is not available dismantle the solenoid and see if it attracts a piece of metal. Check the electric connections.

ALARM AT TOO HIGH TEMPERATURE EXHAUST GAS

The text “high temperature exhaust gas” will appear in the control panel display and the alarm ‘high temperature exhaust gas’ will be shown. The reason may be:

The thermocouple (21B3) has been interrupted

Check the thermocouple visually for deposits and condition. Further, the resistance should be approx.

0,5 Ohm at 20 degree C if checked with an ohmmeter. Check the cable connections on the temperature transmitter (“flex top”) and the connection cables for any damage.

Try to replace the thermocouple.

Too high calorific value of solid waste

Cool down; observe capacities and instructions mounted on Incinerator.

Reset alarm and try again.

[FOR REPRODUCTION PURPOSES ONLY 30 ]

ALARM FEED BACK SIGNAL FROM SLUDGE TANK OR MOTOR FAILURE

The text “Feed back signal or motor failure” will appear in the control display and the alarm ‘feed back or motor relay failure’ will be shown. The reason may be:

Low level in sludge tank

Fill the sludge tank.

Motor relays failure

Check the position of the automatic fuses in the control panel and reset if required.

ALARM FOR ATOMIZING AIR FAILURE

The text “Atomising air failure” will appear in the control panel display and the alarm ‘low pressure atomising air’ will be shown. The reason may be:

Pressure regulator (TR) wrongly adjusted

Adjust by turning the handle to correct pressure which is between 0.5 and 2.0 bar, depending on the sludge oil viscosity and composition.

Failure in air supply

Pressure control (24S5) wrongly adjusted

Adjust, after removing the cover, with a screwdriver to correct set point of pressure (0.8 bar) on the scale.

Valve (33Y8) in air-pipe system closed

Check coil on the solenoid valve with a volt meter and a magnetic stick, or if a magnetic stick is not available dismantle the solenoid and see if it attracts a piece of metal. Check the electric connections.

Filter for air (OL) obstructed, clean or replace as found required

[FOR REPRODUCTION PURPOSES ONLY 31 ]

ALARM FOR COMBUSTION AIR FAILURE

The text “combustion air failure” will appear in the control panel display and the alarm ‘low pressure combustion air’ will be shown. The reason may be:

Failure in air supply to the primary blower (5M4)

Check, that sufficient air supply to the incinerator room is available.

Pressure control (24S9) wrongly adjusted

Remove the cover and adjust with a screw driver to correct set point of pressure of approx. 18 mbar.

ALARM MOTOR OVERLOAD FAILURE

The text “motor overload failure” will appear in the control panel display.

Alarm at abnormal stop of primary blower (5M4), sludge pump (6M4), mill pump (7M2) and circulation pump (7M4).

The alarm marked “motor overload failure” will be shown. The reason may be:

The motor thermal overload protectors are switched off or the switch on thermal overload sludge pump is switched off. (See control panel diagram).

Check the position of the automatic fuses in the control panel and reset if required.

Compare the ampere setting in the electrical diagram with the corresponding motor and thermal overload setting, and adjust if required.

Fault in control equipment cabinet

Check electric cables and the function according to the key diagram.

ALL ALARMS AT THE SAME TIME

No lamps light up and nothing is functioning. The reason may be:

Emergency stop activated.

Current interruption.

The automatic fuses in the control panel are switched off.

Reset the automatic fuses and find the reason why they are switched off.

Reset the alarm.

[FOR REPRODUCTION PURPOSES ONLY 32 ]

ALARM AT INSIDE DOOR, SLUICE NOT CLOSED

The text “inside door sluice not closed” will appear in the control panel display and the alarm ‘inside door, sluice not closed’ will be shown the reason may be:

The inside gate is blocked by waste that has not fallen into the combustion chamber

Alarm will activate cooling process. When the incinerator temperature has fallen to 100oC it is possible to open the sluice door and remove the waste blockage.

Failure in air supply, low air pressure

Check air supply to incinerator by controlling the pressure on the pressure gauge on the pressure regulator (TR).

The micro switch on sluice door is broken, check the electrical connections.

ALARM FOR SLUICE OUTSIDE DOOR

The text “ sluice outside door open” will appear in the control panel display and the alarm ‘front door open’ will be shown. The reason may be:

The front door is not closed

The micro switch on front door is broken, check the electrical -connections.

ALARM FOR DOORS OPEN

The text “ Door open” will appear in the control panel display and the alarm ‘door open’ will be shown. The reason may be:

The ash door is not closed

The micro switch on ash door is broken, check the electrical connections.

Reset alarm

ALARM FOR LOW NEGATIVE PRESSURE IN COMBUSTION CHAMBER

The text “low negative pressure combustion chamber” will appear in the control panel display and the alarm ‘low negative pressure combustion chamber’ will be shown.

The reason may be:

Incorrect adjustment of pressure sensitive switch (25S2). Remove the cover and adjust with a screw driver to a set point of approx. 0,2-0,5 mbar.

No vacuum is obtained. Check the uptake, especially after standstills or repairs.

[FOR REPRODUCTION PURPOSES ONLY 33 ]

SLUDGE DOSING PUMP (6M4) & CIRCULATING PUMP (7M4)

pu m p ha s no s uc tio n pu m p co nv ey s irr eg ul ar ly th e co nv ey in g ca pa ci ty is n ot ac hi ev ed pr es su re is n ot a ch ie ve d pu m p do es n ot s ta rt pu m p ha s si ez ed o r h as s to pp ed co nv ey in g pu m p op er at es n oi si ly m ot or o ve rh ea ts th e st at or w ea rs o ut e ar ly sh af t s ea lin g le ak s

Seepex progressive cavity pumps will operate trouble-free, if they are used in accordance with our data sheets and operating and maintenance instructions:

1 2 3 4 5 6 7 8 9 10 Reasons / Remedies

Ο Ο a Adhesion between rotor and stator excessive (as delivered). Lubricate (soft soap, genuine soap) between stator and rotor. Then turn the pump by means of the tool W2.

Ο b Check rotational direction of the pump per data sheet and nameplate. In case of wrong direction, change wiring of motor.

Ο Ο Ο Ο Ο c Suction pipe or shaft sealing leak.

Ο Ο Ο Ο d Suction head too high (item 6.5.3.1). Check suction head with vacuum gauge.

Increase the suction pipe diameter and fit larger filters. Open the suction valve.

Ο Ο Ο e Viscosity of the liquid too high. Check and accommodate per data sheet.

Ο Ο Ο f Wrong pump speed. Correct pump speed as per data sheet.

Ο Ο g Avoid inclusions of air in the conveying liquid.

Ο Ο Ο Ο Ο h Pressure head too high (point 6.5.3.2). Check pressure head with manometer.

Reduce the pressure head by increasing the pressure pipe diameter or by shortening the pressure pipe.

Ο Ο Ο Ο Ο i Pump runs partially or completely dry (point 6.5.2). Check flow in the suction chamber. Install dry running protection TSE.

Ο Ο j Check coupling, possibly pump shaft is misaligned to drive. Check whether coupling gear is worn. Realign coupling. The coupling gear may have to be replaced.

Ο Ο k Speed to low. Increase the speed when high suction performances are required and when the liquid is very thin.

Ο Ο Ο l Speed too high. Reduce the speed when pumping products with high viscosities -danger of cavitation.

Ο m Check the axial play in the coupling linkage. Check that the bush has been installed correctly. (see document OM.PJT. Item 2.2)

Ο Ο Ο Ο Ο n Check for foreign substances in the pump. Dismantle the pump, remove foreign substances and replace worn parts.

Ο Ο Ο Ο o Stator or rotor worn. Dismantle the pump and replace defective parts.

Ο Ο Ο Ο p Joint parts worn. Replace worn parts and fill with special pin joint grease.

Ο Ο Ο Ο q Suction pipework partially or completely blocked. Clean suction pipework.

Ο Ο Ο Ο Ο r Temperature of the pumping liquid too high. Excessive expansion of the stator.

Check temperature and install rotor with diameter smaller than specified.

Ο Ο Ο Ο Ο s Gland packing too strongly tightened or worn.