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ORIGINAL INSTRUCTION MANUAL Contents subject to modification! The authors are always grateful for remarks and suggestions for improving the documentation. These can be sent to: GEA Germany GEA Westfalia Separator Group GmbH Werner-Habig-Str. 1 59302 Oelde, Germany Tel +49 2522 77-0 e-mail@gea.com Fax +49 2522 77-2950 gea.com...
Temperature monitoring of the bowl bearings (option)......42 3.19 Vibration monitoring of the decanter (option) .......... 42 3.20 Function of the decanter ................43 Technical data Ambient conditions .................. 46 Load on foundation .................. 47 Motor data ....................48 Dimensioned drawing ................48 GEA Westfalia Separator Group...
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Altering the bowl speed (frequency converter) ........102 Altering the differential speed (frequency converter)......102 Mounting and adjusting the speed sensors ........... 103 Altering the Varipond-P® setting ............104 Calculating the separating zone diameter ..........104 GEA Westfalia Separator Group...
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11.5 After/during 1st Commissioning ............. 152 11.6 After the first 500 operating hours ............153 11.7 Daily ....................... 153 11.8 Monthly ....................154 11.9 Every 2000 operating hours, after 6 months at the latest ..... 154 GEA Westfalia Separator Group...
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Drive motors ..................205 13.2 Maintenance schedule (machine shut-down for a prolonged period) ... 206 13.2.1 Maintenance work once a month............207 13.2.2 Maintenance work once a year .............. 207 13.2.3 Maintenance work before resuming operation ........207 GEA Westfalia Separator Group...
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Use only genuine spare parts..............212 14.2 Notes on ordering spare parts ............... 213 14.3 Storing wear parts and operating materials ........... 214 14.3.1 Gaskets and drive belts ................. 214 14.3.2 Roller bearings..................215 14.3.3 Lubricants ....................215 GEA Westfalia Separator Group...
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About this document BAA8011-855EN / 09.01.20 GEA Westfalia Separator Group...
Danger signals This is the danger signal. It warns of injury risks. Comply with all measures marked with the danger signal to avoid injury or death. GEA Westfalia Separator Group...
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Explanation of the hazard and the consequences in the event of non-compliance. Measures to avert or minimise the hazard. NOTICE Type and source of the hazard Explanation of the hazard and the consequences in the event of non-compliance. GEA Westfalia Separator Group...
(mechanical or electrical). The skilled worker is selected and deployed by the employer (plant operator). GEA Westfalia Separator will carry out the briefing only in specific technical features that are part of the supply schedule and will indicate potential hazards.
The demands on the qualification of the service staff are growing increasingly. GEA Westfalia Separator consequently offers a qualification model and training con- cept. For further information about the training of operating and service personnel as well...
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About this document BAA8011-855EN / 09.01.20 GEA Westfalia Separator Group...
Qualification of the personnel ..............17 Responsibility of the plant operator ............17 Modifications to the centrifuge ..............18 Requirements to be met by spare parts and consumables ..... 18 Hazards through products and operating materials ........ 19 GEA Westfalia Separator Group...
Operating modes that result in unbalance due to concentration of product and con- sequent caking are considered as not in conformity with the intended use. The plant operator is responsible for damage arising as a consequence of this non-conform- ance, The manufacturer is not liable. GEA Westfalia Separator Group...
Clearly define and notify responsibilities for tasks. Operate the centrifuge only in perfectly functional conditions in line with the in- tended use. For the intended use, refer to the section "Intended use". Before starting the machine, always check all safety devices. GEA Westfalia Separator Group...
Spare parts, wear parts and consumables can cause damage to persons and prop- erty if they do not meet the requirements. Original spare parts and consumables from GEA Westfalia Separator Group satisfy all pre-conditions for the operating safety of the centrifuge.
Centrifuges which have been purpose-built for the operation with hazardous materi- als are marked with safety stickers. Hazards resulting from the following product characteristics and operating materials are known from product observation. Hot products Cold products Hazardous, chemically critical products Hazardous, biologically critical products Detergent GEA Westfalia Separator Group...
Lubrication ....................39 3.16 Drive ......................40 3.17 Motor control .................... 41 3.18 Temperature monitoring of the bowl bearings (option)......42 3.19 Vibration monitoring of the decanter (option) .......... 42 3.20 Function of the decanter ................43 GEA Westfalia Separator Group...
Following accidents, notify in-house or local emergency services immediately so that appropriate action can be taken. The emergency services comprise, for example, fire brigade, paramedics, security and other emergency facilities. GEA Westfalia Separator Group...
Chemicals and incorrect concentrations of chemicals not specified and approved by GEA Westfalia Separator can cause damage through corrosion. Chloric cleaning agents attack stainless steel and can lead to corrosion. The corrosion can occur both on bowl parts as well as on the hood and the concen- trate collector.
Replace damaged protective gear with new gear. Clean dirty protective gear. Use hearing protection! Use hearing protection when working in loud environments! The noise level in a plant can exceed 85 dB(A). Fig. 1 GEA Westfalia Separator Group...
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An inert gas is, e.g. nitrogen. See SOP issues by the plant operator. Fig. 4 GEA Westfalia Separator Group...
The documentation must be complete, kept near to the machine and be read- ily accessible to operating personnel. Fig. 6 In the event of non-compliance with the above, GEA Westfalia Separator accepts no liability for resulting damages. GEA Westfalia Separator Group...
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Press EMERGENCY STOP! Take people to safety and leave the room. Do not enter the room again until the bowl has come to a standstill! Danger to life and limb from rotating machine Fig. 9 parts! GEA Westfalia Separator Group...
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Risk of injury! This adhesive label is used only for hot operation or extreme cold operation. Fig. 11 Operate the machine only with protec- tive equipment in accordance with EN 294. Fig. 12 GEA Westfalia Separator Group...
The surfaces reach temperatures of over 80 °C depending on the product processed and the operating speeds. In normal operating mode, with mounted protective devices and functional supervi- sory equipment, there are no further danger areas on the centrifuge. GEA Westfalia Separator Group...
Description BAA8011-855EN / 09.01.20 Nameplate GEA Westfalia Separator Group GmbH 59299 Oelde, Germany Type Serial-No. Year of manufacture Max. admissible rated bowl speed in min Max. admissible density of the feed product in kg/dm Heavy liquid kg/dm Solids kg/dm Min./max. temperature of the feed product in °C Min./max.
Small layer thickness of the light liquid Low degree of purity of the light liquid flow diameters phase phase Large layer thickness of the heavy liq- High degree of purity of the heavy liq- uid phase uid phase GEA Westfalia Separator Group...
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Changing the number of bowls High bowl speeds generally improve the clarification and separation, but require higher drive powers. They can also make the transportation of solids more difficult and increase material wear. GEA Westfalia Separator Group...
Varipond, the liquid filling in the bowl in- creases. Consequence: - The clarifying zone lengthens, the clarification values are better. - The dewatering zone shortens, the dewatering values are poorer. Fig. 18 GEA Westfalia Separator Group...
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. Note: The flowmeters are calibrated for an operating pressure of 4 bar. Max. rate of flow Q = 4000 l/h. By increasing the operating pressure P on the peeling disc, the rate of flow Q reduced. GEA Westfalia Separator Group...
Diagram 3 shows the effect on the liquid filling d = 0.75 bar results in a diameter of d of 262 mm. That means an adjustment of 8 mm compared to the regulating ring diameter of 270 mm. GEA Westfalia Separator Group...
The bowl bearings are supplied with lubricant through an automatic oil-air lubri- cation system. Scroll bearings The scroll bearings are filled with oil. The oil filling must be replaced regularly. The re-lubrication intervals and grease qualities are specified in the "Lubrication and maintenance schedule". GEA Westfalia Separator Group...
The back drive motor remains in operation for a preset time. This usually clears the solids out of the bowl. The machine can be re-started immediately after bowl stand- still. The minimum differential speed (and the position of the control range) depends on the gear and belt pulley ratios. GEA Westfalia Separator Group...
Monitoring of the gear lubrication. If the decanter is correspondingly equipped, the following parameters and functions can additionally be monitored. Temperature of the bowl bearings. Vibrations of the decanter. Function of the automatic lubrication system for the bowl bearings. GEA Westfalia Separator Group...
Excessively high vibrations can have the following causes: Product deposits Worn roller bearings Factory set limit values For limit values see data sheet The data sheet is an integral part of the machine documentation. GEA Westfalia Separator Group...
The removal of the liquid phase, which is discharged via the regulating disc or the regulating plate, takes place under pressure. The discharge of the liquid phase, which is discharged via the regulating tubes, takes place without pres- sure. GEA Westfalia Separator Group...
Technical data BAA8011-855EN / 09.01.20 Technical data Ambient conditions .................. 46 Load on foundation .................. 47 Motor data ....................48 Dimensioned drawing ................48 GEA Westfalia Separator Group...
DIN EN ISO 3746 Sound power level DIN EN ISO 3746 Explosion hazarded zone of centrifuge Ex-marking RL 94/9/EC Inert gas blanketing necessary Yes / No Process values Intended use Feed product Feed pressure min./max. Downpipe pressure min./max. GEA Westfalia Separator Group...
Technical data BAA8011-855EN / 09.01.20 Load on foundation The load on the foundation depends on the type of drive and the motors used. Note order-specific dimensioned drawing ! GEA Westfalia Separator Group...
50 Hz 1500 min Speed 60 Hz 1800 min 87 Hz 2610 min Enclosure IP 55 / IP 56 Design IMB8 Dimensioned drawing For information only, do not use as a planning document! Note order-specific dimensioned drawing! GEA Westfalia Separator Group...
Using load-suspension devices safely ............ 53 5.3.1 Declaration of conformity on load lifting attachments ......55 5.3.2 Load fastening points for the hoist............56 Using lifting eye bolts or lifting eye nuts as load handling devices ..57 GEA Westfalia Separator Group...
Spray-on anti-corrosive wax, see the lubrication and maintenance schedule. - Check and, when necessary, touch up the corrosion protection once a month. For the purpose of transporting the gearbox for inspection by the manufacturer, the gearbox must likewise be prepared as described above. GEA Westfalia Separator Group...
For the reduction of the working load limit in individual cases, see the manufacturer's specifications. GEA Westfalia Separator recommends the use of round slings made of synthetic fibres. Observe the points below when using load-suspension devices.
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Do not carry out repairs to slings. Send damaged slings to the manufacturer. Always screw in threaded rods as far as they will go. Tighten all nuts fully. Tighten all bolts fully. Do not walk under suspended loads. GEA Westfalia Separator Group...
The centrifuge instruction manual contains all necessary instructions on using load lifting attachments and shall be considered as their relevant manual. This declaration is submitted as responsible for the following manufacturer / importer: GEA Westfalia Separator Group GmbH Werner-Habig-Str. 1 59302 Oelde, Germany Duly authorized person for technical CE documentation:...
Screw in lifting eye bolts or lifting eye nuts completely. Attach load handling devices as verti- cally as possible, e.g. chains. Pull max. 45° diagonally. Modes of assembly other than those shown are not admissible, e.g. lateral pull. Fig. 25 GEA Westfalia Separator Group...
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Transport and storage BAA8011-855EN / 09.01.20 GEA Westfalia Separator Group...
Fitting the coupling .................. 95 6.32.1 Fitting the coupling (type A) ..............95 6.32.2 Fitting the coupling (type B) ..............97 6.33 Connecting the control ................99 6.34 Connecting the feed and discharge line assemblies ......100 GEA Westfalia Separator Group...
The following documents are required: Order-specific dimensioned drawing Order-specific P&ID (Piping and Instrumentation Diagram) Order-specific equipment list Terminal and circuit diagram Decanter instruction manual Additional manuals (if applicable), e.g. for oil+air lubrication of the bowl bearings GEA Westfalia Separator Group...
The decanter has low dust exposure. The standard values in industrial environ- ments are not exceeded. Uniform ambient temperatures prevail between min. 5 °C and max. 40 °C. In the following cases GEA Westfalia Separator must be contacted for more precise clarification of the optimum installation. Unfavourable ambient conditions are: The decanter is standing outdoors.
The feed must be provided with a shut-off device so as to be able to interrupt the product supply in case of operating malfunctions. The feed system should enable uniform product supply with a constant solids con- tent. GEA Westfalia Separator Group...
Resistant against the specified environmental conditions Light-resistant when installed outdoors If applicable, suitable for use in the food and/or pharmaceutical sector Pressure range for the compensators In the feed line: PN6 In the discharge line centripetal pump and paring tube PN16 GEA Westfalia Separator Group...
Assembly and installation BAA8011-855EN / 09.01.20 Configuration of the liquid chute Open chute Liquid chutes adapted optimally to the decanter can be procured from GEA Westfalia Separator. Take into account the following points when building your own constructions: Provide a vent.
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- Prevent danger through discharging product. Rate conveying equipment (e.g. pumps, conveyor belts or solid slides) to handle the throughput capacity of the decanter. In case of doubt, contact GEA Westfalia Separator. During start-up, run-down and flushing the decanter, liquid discharges through the solid discharge.
The seals between the frame and discharge chute are not symmetrical. IMPORTANT: The wide webs must be located at the marked positions. The shape of the seals influences the air flow in the decanter. Incorrect fitting leads to inadmis- sible product deposits. GEA Westfalia Separator Group...
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Assembly and installation BAA8011-855EN / 09.01.20 Option 2: Decanter with one-piece catcher (Sizes 3000 to 8000) Fig. 28 GEA Westfalia Separator Group...
Max. air flow [m 5000 Connection DN150 DN150 Max. air flow [m 6000 Connection DN150 DN200 Max. air flow [m 7000 Connection DN200 DN200 Max. air flow [m 8000 Connection DN200 DN200 Max. air flow [m GEA Westfalia Separator Group...
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Vent the solid catcher and liquid catcher separately from one another. If several machines have to be vented together, contact GEA Westfalia Separator. If a gate valve is fitted in the chute on the solid side, the vent must be located above the gate valve.
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IMPORTANT: Designs with centripetal pump must also have a vent fitted below the liquids chute. In doing so, make sure that the pipe supports on the cover also serve as the leakage and hood flushing water drains. Fig. 30 GEA Westfalia Separator Group...
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If two liquid phases are freely discharged, the venting must be carried out as shown in the example below. Fig. 31 Pipe phase (1): no venting Regulating ring phase (2): venting required Venting pipe (3): not included in the scope of delivery GEA Westfalia Separator Group...
For models in the size range 3000 to 5000 an optional oil-air lubrication is available. The oil-air lubrication is included in the standard scope of delivery for the seize 6000 and larger. The required air volumes and pressures are specified in the supplementary manual. GEA Westfalia Separator Group...
Shut-off devices in the feed and discharge lines must be installed such that the shut-down decanters can be isolated. Vent lines must be planned and installed in such a way that the shut-off devices cannot be bypassed. The decanter may only be started when the shut-off devices are open. GEA Westfalia Separator Group...
Decanter sizes 3000 to 6000 The following table shows examples of the terminal box positions on decanter sizes 3000 to 6000. Actual dimensions can be found on the order-specific dimension sheet. Fig. 33 GEA Westfalia Separator Group...
Terminal box Control unit (Varipond P) Terminal box Temperature monitor complete (drive temperature measurement) Terminal box Water pressure reducing valve complete (hydrohermetic system) Terminal box Cooling water supply (mechanical seal), Alternative Actuator complete (Varipond E) alternative GEA Westfalia Separator Group...
A minimum clearance of 250 mm (X) must be maintained below the machine in the area of the protective grille. View of sizes 3000 to 6000 Fig. 35 View of sizes 7000 to 8000 Fig. 36 GEA Westfalia Separator Group...
250 mm. This space is required for an oil collecting pan and as also to access the oil drain plug. Fig. 37 IMPORTANT: Check gasket (2) for damage and replace if necessary. GEA Westfalia Separator Group...
Fastening arrangement on a steel frame. The lateral holes X can optionally be used. Fig. 38 Fastening arrangement on a concrete foundation Fig. 39 Main motor The dimensions are given in the separate dimensioned drawing. depending on the design GEA Westfalia Separator Group...
30%. A centrifuge must be installed as level as possible. The difference in height be- tween the supporting points must be maximum 5 mm. Differences in height must be offset with shims at the supporting points. GEA Westfalia Separator Group...
That notwithstanding, sets of tools or replacement and maintenance parts may be delivered in additional crates. Decanter sizes 3000 and 4000 are delivered in one crate. Fig. 41 Decanter sizes 5000 and 6000 are delivered in two crates. Note that the main motor is usually packed separately. GEA Westfalia Separator Group...
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Drive frame with back drive motor (1) The decanter frame with the top part of the catcher and installed bowl including the gearbox (2) Main motor (3) Unpack the components in the given order. Fig. 42 GEA Westfalia Separator Group...
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Assembly and installation BAA8011-855EN / 09.01.20 Attaching hoists for decanters sizes 7000 and 8000 Fig. 43 Fig. 44 GEA Westfalia Separator Group...
Decanter installation and alignment The installation of the smaller decanter sizes 3000 to 6000 is somewhat different from that of the larger decanter sizes 7000 to 8000. 6.25.1 Installation and alignment of decanter sizes 3000 to 6000 Fig. 45 GEA Westfalia Separator Group...
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Fig. 47 Exception: The bowl lock screws on the bearing housings must be removed and replaced with short screws for the size 6000. Two screws each on the solid side and the liquid side. GEA Westfalia Separator Group...
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15 mm (X) and lock. - Carry out on all 4 threaded rods. - Threaded rods (2) must not have contact with the motor bracket foot. - If necessary, re-align the threaded rods in the frame. Fig. 48 GEA Westfalia Separator Group...
Varipond P, which are otherwise fitted at the decanter. The supply cabinet is used e.g. for sanitary installa- tion or for extreme conditions. Fig. 50 GEA Westfalia Separator Group...
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Assembly and installation BAA8011-855EN / 09.01.20 Install the optionally available supply cabinet maximum 4 m away from the decanter. NOTE: Larger distances would result in inadmissibly high pressure losses in the hoses of the oil-air lubrication. GEA Westfalia Separator Group...
If the motor is equipped with a PTC thermistor, it must be connected to the corre- sponding tripping device. The measuring circuit line (between tripping device and motor) has to be laid sepa- rate from other lines. GEA Westfalia Separator Group...
The electrical connection of the three-phase AC motor may only be performed by authorized specialists, e.g. electricians and high voltage electricians. Power must be shut off to the connections and it must be ensured that it cannot be switched back on. GEA Westfalia Separator Group...
- Pos. B for gear type PGA 411 - Pos. C for gear type PGA 417 Fig. 54 IMPORTANT! Do not carry out the following work until the drive belts have been tensioned: Align the secondary motor. Mount the coupling. GEA Westfalia Separator Group...
1. Align the motor approximately to the motor bracket. Screw nut 3 onto the threaded rod. Fig. 57 Mount vibration damper 1 and threaded rods 2 onto the frame. Fig. 58 GEA Westfalia Separator Group...
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- Avoid the errors illustrated. - The deviation of the pulley align- ment should not exceed x = 5 mm. - The larger the off-track running of the belts, the higher the wear. Fig. 62 GEA Westfalia Separator Group...
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- Compensate the above-determined difference by screwing-in screw 1. - Counter the screws. Fig. 65 Re-tension the drive belt. Measure distances X and Y. - If there is still a difference, repeat the last work steps. Fig. 66 GEA Westfalia Separator Group...
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(check with spirit level). - The belts are correctly tensioned. IMPORTANT! Only now can you align the secondary motor and set the coupling, see chap- ter "Fitting coupling". Fig. 67 Mount the guards and cover. Fig. 68 GEA Westfalia Separator Group...
Fasten the motor-side coupling hub (1) on the motor shaft. - The coupling half must be at least 2 mm (S) in front of the motor shaft. Fig. 71 GEA Westfalia Separator Group...
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(1) is seated on both coupling hubs. - The offset (A) must be smaller than 1 mm. - Displace the motor laterally if neces- sary. Tighten the screws of the motor and motor bracket. Fig. 75 GEA Westfalia Separator Group...
Tighten screws (9) and (13). Fig. 78 IMPORTANT! - The coupling rings must not be de- formed through the screwing (exam- ple A). - The rubber elements must retain their original form (example B). Fig. 79 GEA Westfalia Separator Group...
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(1) is seated on both coupling hubs. - To do this, displace the motor later- ally. - The side offset (A) must be smaller than 1 mm. Tighten the screws of the motor and Fig. 81 motor bracket. GEA Westfalia Separator Group...
They must be installed based on the risk assessment of the plant operator. The EMERGENCY STOP function of the centrifuge must, if neces- sary, be integrated in a shut-down concept of the plant or of plant components. GEA Westfalia Separator Group...
If the above is not observed, metal fines can enter the bowl and damage gaskets and other bowl parts. Downtime of the centrifuge and high repair costs would be the result. GEA Westfalia Separator accepts no liability for damage caused in this way.
Changing speeds The choice of belt pulleys depends on the product. If a change in speed is desired, please contact GEA Westfalia Separator. Altering the bowl speed (frequency converter) The main motor can also be fitted with an optional frequency converter. The bowl speed can then be infinitely adjusted within certain ranges via the frequency con- verter.
3.5mm If the distance is too large, it could cause incorrect speed evaluations. Option 2 (with gear cooling) Fig. 84 The position of holders (2) and (3) for the speed sensors depends on the gear type. GEA Westfalia Separator Group...
Greater layer thickness and a high degree of purity of the light liquid phase. Small layer thickness and poorer degree of purity of the heavy liquid phase. A small difference in diameter results in opposite tendencies for the liquid phases. GEA Westfalia Separator Group...
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Greater layer thickness and a high degree of purity of the light liquid phase. Small layer thickness and poorer degree of purity of the heavy liquid phase. A small difference in diameter results in opposite tendencies for the liquid phases. GEA Westfalia Separator Group...
Do not start maintenance work until the components have cooled down to room temperature. Depending on the application and product temperature, the cooling phase can take up to 2 hours. Remove protective hood / open the hinged cover. GEA Westfalia Separator Group...
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Remove nozzle (2). Remove regulating tubes (3). For this Fig. 87 The installation takes place in reverse order and the following must be taken into account: Clean all parts carefully. Replace worn or damaged parts immediately. GEA Westfalia Separator Group...
Checking the run-down time of the bowl ..........110 Checking the direction of rotation of the bowl ........111 Start-up check list .................. 112 Performing a test run ................114 Preparing for re-starting ................. 114 Start the centrifuge at operating state temperature ....... 115 GEA Westfalia Separator Group...
Initial commissioning Commissioning of the centrifuge after erection and installation may only be carried out by specialists from GEA Westfalia Separator or authorized service partners. Non-professional execution of commissioning by unsuitable personnel can lead to accidents with personal injury and property damage.
The electrical connection of the three-phase AC motor may only be performed by authorized specialists, e.g. electricians and high voltage electricians. Power must be shut off to the connections and it must be ensured that it cannot be switched back on. GEA Westfalia Separator Group...
Transportation locking device has been released and secured. Product paths Feed lines are deburred and cleaned or acceptance report of the plumber. The product feed doesn't leak. The product corresponds to the specifications on the nameplate. Operating pressures prevail. Temperature is correct. GEA Westfalia Separator Group...
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Connection values on the motor nameplate match the specifications on the centrifuge name- plate and the connectional values of the local power supply. Electrical connection has been executed professionally. Direction of rotation of motors/bowl are correct. GEA Westfalia Separator Group...
Strip down the bowl and check the bowl parts for corrosion damage. In case of doubt, have the bowl parts checked by service personnel from GEA Westfalia Separator. If the centrifuge has been in storage for longer than one year, carry out the steps specified in the maintenance schedule (machine out of operation for prolonged period).
This can result in overheating of the coupling and the three-phase AC motor. Do not re-start centrifuges with motors for controlled torque starting at operating state temperature until after a cooling off time of 60 minutes. GEA Westfalia Separator Group...
In case of frequency converter opera- tion: Never manipulate the frequency con- verter to exceed the permissible bowl speed (see nameplate). The machine may only be operated with an independent device for speed limitation. Fig. 90 GEA Westfalia Separator Group...
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Evacuate the room. Fig. 92 The bowl is not allowed to run without liquid supply for more than 30 minutes, as otherwise it would result in over- heating of the bowl material. Fig. 93 GEA Westfalia Separator Group...
If the decanter control has not been delivered by GEA Westfalia Separator, a number of requirements must be met by the control system to guarantee at least an adequate standard of safety.
- The max. admissible bowl speed is specified on the decanter nameplate or the technical datasheet. Set control settings on the decanter monitoring unit - Basic differential speed - Control gradient - Control begin Open the product feed and adjust the desired throughput capacity. GEA Westfalia Separator Group...
- to maintain the operating reliability and safety of your decanter and - undesirable production stoppages are avoided. IMPORTANT! A deterioration in the processing efficiency of the decanter can also be caused by changes in the product. GEA Westfalia Separator Group...
2372) and therefore enables an objective monitoring of the decanter vibration be- haviour. The vibration monitoring devices must be set in accordance with the data sheet. The data sheet is an integral part of the machine documentation. GEA Westfalia Separator Group...
Reduction of product residues in the bowl Reduction of vibrations due to dried product residues 9.7.1 Shut-down program P&ID flow chart P&ID shut-down program Fig. 94 Inlet valve Water inlet valve Product discharge valve CIP valve outlet GEA Westfalia Separator Group...
When the speed of the flushing inlet valve (n2) is reached the supply of flushing liquid (V6) is closed. The lower flushing speed (n1) is kept to improve the cleaning result for a lower flushing duration. The bowl drive stops. The cycle (Ax) is repeated depending on the product. GEA Westfalia Separator Group...
Speed at which the flush liquid supply is closed. Bowl drive with FC: Lower flushing speed Programs Shutdown program Water 20 °C 9.7.4 Valve positions piping around the decanter are switched as follows to obtain the desired flow direc- tions. GEA Westfalia Separator Group...
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State: closed end of production Valve Position Valve Position Valve Position closed closed closed open open closed open open closed closed closed closed State: Backflushing Valve Position Valve Position closed closed closed closed closed closed open closed GEA Westfalia Separator Group...
When the speed of the flushing inlet valve (n2) is reached, the supply of flushing liquid (V11) is closed. The lower flushing speed (n1) is kept to improve the cleaning result for a lower flushing duration. The bowl drive stops. The cycle (Ax) is repeated depending on the product. GEA Westfalia Separator Group...
If the flushing device is provided by the customer, pay attention to the following: Order-specific dimensioned drawing P&ID Flush liquid volume, pressure and flushing time are product-dependent. Adequate flushing is only possible when all flush connections are operational (de- pending on the application). GEA Westfalia Separator Group...
A shut-off valve can be optionally installed in discharge line C2 to avoid backflow when the decanter is at standstill. C2 Cleaning agent return flow A1 Cleaning agent inlet B1 Cleaning agent outlet P&ID with CIP return Fig. 97 GEA Westfalia Separator Group...
44 gpm 7000 14 m³/h 62 gpm 8000 The CIP valves V3 and V11 must be set to limit the max. CIP inlet flow rate to the decanter. Product discharge valve V4 is set to 3 bar. GEA Westfalia Separator Group...
Warning labels are recommended to alert operators to the possibility of CIP medium leakage. Special attention is required when equipment is installed at higher levels and personnel have access below. GEA Westfalia Separator Group...
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Operation BAA8011-855EN / 09.01.20 Standard procedure in graphical form Fig. 103 GEA Westfalia Separator Group...
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Caustic 50 °C Caustic 75 °C Water 75 °C Acid 55 °C Acid 55 °C Water 20 °C Water 20 °C Disinfection Disinfection Important: supplied via A1 is discharged via return line C2 or outlet B1. GEA Westfalia Separator Group...
/ 3 bar open / 3 bar closed open open open closed closed open closed closed open open closed Pulse / pause Pulse / pause Pulse / pause Alternating V3 closed closed pulse / pause GEA Westfalia Separator Group...
This bearing damage results in high conse- quential costs. GEA Westfalia Separator urgently recommends accelerating the decanter to oper- ating speed for 30 minutes every 14 days. Note: Chapter "Commissioning / commissioning check list".
Bowls may be balanced only by authorized specialists and authorized workshops. After carrying out maintenance and repair work on centrifuges, reattach all pro- tective devices and check the safety devices. GEA Westfalia Separator Group...
Only in the case of a one- piece catcher: Check the ring halves of plastic in the frame. Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Do not start maintenance work until all machine parts have adequately cooled down. - The cooling down time depends on the product processed and the ma- chine size. - Check the surface temperature be- fore starting work. Fig. 106 GEA Westfalia Separator Group...
Every check or test must be documented and the document must be archived. NOTE: Damaged or incomplete load suspension devices included in the set of tools must be sent to GEA Westfalia Separator for checking and repair. GEA Westfalia Separator Group...
Insufficient lubricant Incorrect lubricant Lubricant change intervals too long Damage becomes evident in the short-term by an increased running noise level. In the long-term it results in premature fatigue of the bearing surfaces. GEA Westfalia Separator Group...
Check air pressure. Setpoint at pressure reducer = 5 bar Check the lubrication pulse. - Settings in the decanter control - Oil flow Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Lubricant: WS-0038 Check the oil level in the storage vessel. Oil-air unit / bowl Lubricant: WS-0036 bearing lubrication Refer to the oil-air unit manual. Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Check for leakage. Skilled Fill in new oil. Skilled Scroll bearing / li- Shorter intervals may be necessary. quid side Lubricant: WS-0038 Lubricant quantity: 1,0 litres Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Check vibration guard for proper functionality. Skilled Optional: The functional check is done by lowering the limit value tempo- Vibration pickup rarily while the machine is running. Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Operator When using the decanter in explosion-hazarded areas: Skilled Have the gearbox inspected by GEA Westfalia Separator. Consulting is done by GEA WS service or GEA WS branches. Gearbox Other intervals may be necessary in the case of long standstill times or very tough operating or ambient conditions.
Check the wear to the scroll and wear liners. Tspec Check the decanter and the electrical components. Tspec Complete decanter Check the frame, catcher and product discharge for deposits. Eliminate caking. Op = Operator Skilled = Skilled worker Tspec = Trained specialist GEA Westfalia Separator Group...
Wear is minimised. The service life and operating safety of the decanter is increased. For this reason, we recommend the lubricant be filled in at the factory. GEA Westfalia Separator Group carries out continuous quality checks only for this product.
As a rule, 2-3 flights in the product inlet zone are particularly prone to wear (»X«). As much wear as possible must be allowed for this small area (»Y«). The wear to the distributors should also be observed. GEA Westfalia Separator Group...
Pay attention to the following during maintenance work: Roller bearings with special tolerances are required for all bearing points. Use only those roller bearings specified in the parts list. Use only suitable hoists and load suspension devices. GEA Westfalia Separator Group...
Raise protective hood / open the hinged cover. Unscrew plug (1) and connect the Place a suitable collecting vessel un- derneath to collect the oil. Rotate the bowl until the oil discharge opening (1) is at the bottom. Fig. 110 GEA Westfalia Separator Group...
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Oil quantity and oil quality are specified in the "Lubrication and maintenance sched- ule". Seal both holes. Note: - Renew the gaskets during each assembly. Damaged gaskets can lead to oil leakage. - Grease the threads of the screw plugs with WS M- paste. - chapter lubricant GEA Westfalia Separator Group...
- grinding marks in the area near the catchers - cavitation in the area of the solids discharge ports Wearing bushes in the solids discharge ports Replace damaged or worn parts immediately or inform GEA Westfalia Separator. 11.20 Bowl bearings The bowl bearings are supplied with lubricant through an automatic oil-air lubrication system.
- More than 5 litres of waste oil can discharge depending on the adjustments of the oil-air lubrication. Unscrew screw 1. Drain the oil. Check gasket 2 for damage and replace if necessary. Fit gasket 1 with seal 2 again. GEA Westfalia Separator Group...
0534-000 for this purpose. The measuring device consists of: Display arm (1) Compression surface (2) Pressure spring (3) Fig. 114 Push the display arm of the measuring device to the end of the scale. Fig. 115 GEA Westfalia Separator Group...
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After tensioning the belts, check the alignment of the back drive motor- gearbox, If necessary, re-align the secondary motor, see chapter "Fitting the secondary motor". Check the position of the speed initiators and realign if necessary, see chapter GEA Westfalia Separator Group...
Before restarting the decanter, the cause of the oil loss must be eliminated. Check radial packing rings and O-ring seals and replace if necessary. Option 1 (standard) Fig. 118 1 Oil surge vessel 3 Rotary transmission leadthrough 4 Switch (switches the decanter off when oil drops below minimum) GEA Westfalia Separator Group...
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3 Rotary transmission leadthrough 4 Switch (switches the decanter off when oil drops below minimum) Fig. 120 5 Fastening point for the dismantled oil line. An unintentional running empty of the oil tank can be prevented. GEA Westfalia Separator Group...
Remove the bowl if necessary and place it in a suitable device, see chapter "Ser- vicing / Removing the bowl". Drain the oil from the gearbox. - Place a suitable collecting vessel underneath and unscrew the oil drain screws (1). Fig. 122 GEA Westfalia Separator Group...
If the oil level drops below the minimum, the warning device of the float switch is activated and the decanter is shut down. After the test run the gearbox must be vented again. For venting the gearbox see chapter: "Maintenance / Venting the gearbox". GEA Westfalia Separator Group...
- Option 2 (integrated oil vessel) Fill in oil up to the middle of the sight glass. - If too much oil is filled in, the oil surge reservoir can overflow during operation. Mount covers (2) and (1). GEA Westfalia Separator Group...
For lubricating the motor bearings, refer to the instructions of the motor manufac- turer. The following applies in the case of motors supplied by GEA Westfalia Separator: Deviations from the instruction manual of the motor manufacturer are specified on a motor rating plate.
12.13.1 Radial packing rings ................197 12.14 Removing the main motor ..............198 12.15 Removing the secondary motor ............. 199 12.16 Replacing belt pulleys ................200 12.17 Replacing the motor belt pulley (taper lock bush) ......... 202 GEA Westfalia Separator Group...
This can result in personal injury and material damage when operating the centrifuge. Centrifuges may only be operated by persons who are qualified to carry out these tasks. These persons include, for example, trained experts from GEA Westfalia Separator and specialist personnel trained and authorised (certified) by GEA Westfalia Separator.
In the case of screws larger than M 16, an individual drop in strength due to the degree of deformation of the screw raw material and the thread rolling procedure must be taken into account. GEA Westfalia Separator Group...
BAA8011-855EN / 09.01.20 12.2.2 Screw tightening torques in inch-pound (inlb) The following formula is used to convert the torques (M = Ma x 8.85 inlb Example: inlb 50 (screw 50 Nm x 8.85 inlb Mainlb = 442.5 inlb GEA Westfalia Separator Group...
(1) and (2). Fig. 124 Only for version with torque arm: Only for the lowest of the available dif- ferential speed ranges: - Loosen the torque arm (2); to do this, unscrew screw (1). Fig. 125 GEA Westfalia Separator Group...
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- Loosen coupling nut (3). - Seal gearbox. Use the locking cone and coupling nut, see chapter "Maintenance / Special Tools / Standard Tools". If the oil in the vessel is not changed, tie up the oil line. Fig. 128 GEA Westfalia Separator Group...
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Wear personal protective gear. Use a suitable hoist. Do not walk under suspended loads. Remove the protective hood with a hoist. - Only attach the lifting gear to the lift- ing eyes provided Fig. 130 GEA Westfalia Separator Group...
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- The gas springs aid the lifting proce- dure. Fig. 131 Fig. 132 Important: Check that the latches on both sides are engaged as shown. If nec- essary, adjust manually. This prevents the protective hood accidentally slamming shut. GEA Westfalia Separator Group...
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As the gear is completely filled with oil, overpressure may occur in the gear. Countermeasure: Drain the oil and fill in the preserving oil. Pay attention to the instructions on long-time storage. GEA Westfalia Separator Group...
Unscrew screws (11). Remove pipe (7) and coupling ring (8). Fig. 136 Coupling type B Unscrew screws (9) and (13). Unscrew screws (11) and (12). Remove coupling ring (10) and pipe (7). Remove coupling ring (8). Fig. 137 GEA Westfalia Separator Group...
Fig. 138 Secure both bearing housings. Fig. 139 Only for version with torque arm: Only for the lowest of the available dif- ferential speed ranges: - Fit torque arm (2). Fig. 140 GEA Westfalia Separator Group...
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Wear personal protective gear. Use a suitable hoist. Do not walk under suspended loads. Attach the protective hood with a hoist. Only attach the lifting gear to the lugs provided Fig. 143 GEA Westfalia Separator Group...
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With fitted gas springs (option for hinged hood) Fig. 144 Loosen the locking tabs on both sides as illustrated. Close the protective hood with the handle. - The gas springs aid the lowering procedure. Fig. 145 GEA Westfalia Separator Group...
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Pull down the bolts. Tighten the nuts. Option 2: Design with suspended catchers Fit and align the upper part of the catcher. - See chapter "Maintenance / "Fitting Mount protective hood. Tighten screws (1). Fig. 147 GEA Westfalia Separator Group...
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/ Fitting the cou- pling". Mount protective hoods (3) and guard (2). Mount the vibration pickup. Fig. 148 Fasten the hood flushing. Fasten the oil + air lubrication. Fit the bearing temperature feelers. GEA Westfalia Separator Group...
Check again to see if the bowl can be turned by hand. - If the ring halves have too strong contact with the bowl, increased vibrations may occur during operation. - Re-align the ring halves if necessary. GEA Westfalia Separator Group...
- The gaps at S are not adjustable. The gaps will be correct when properly as- sembled. - Gaps (S ) can be changed within the slits in the lower and upper part of the catcher. GEA Westfalia Separator Group...
"Set of tools". Set the bowl down and support it so that the bowl is stable with and without scroll. Fig. 151 Unscrew screws (1). Force off and dismantle feed tube (2). Fig. 152 GEA Westfalia Separator Group...
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Place the scroll on a suitable surface. Support the scroll and secure it from rolling away. Seal the tapholes in the bowl shell with screws. The balancing weights in the bowl could otherwise fall out. GEA Westfalia Separator Group...
Tighten screws (1) evenly and cross- wise. Fig. 156 Fit the feed tube. Fit the bowl, see chapter "Servicing / Fitting the bowl". GEA Westfalia Separator Group...
Fig. 157 Remove the coupling and torque arm / exchangeable pulley, see chapter "Servic- ing / Removing the bowl". Undo hex head screws (5). Force gear (4) off the gear hub with screws (6). Fig. 158 GEA Westfalia Separator Group...
Clean all parts carefully. Replace worn or damaged parts immediately. Pay spe- cial attention to the condition of the gaskets. Use only complete tools for their intended use. Fill the gear with oil, see chapter "Filling in gear oil". GEA Westfalia Separator Group...
(1) prior to as- sembly. Use the lubricant sparingly. Be sure to use the same lubricant that is used for roller bearing lubrication. Do not apply lubricant to the sealing lips of the radial packing rings. Fig. 159 GEA Westfalia Separator Group...
Fig. 160 Lower the motor by evenly turning nuts (5). Remove drive belt (7). Unscrew nuts (6). Remove the motor and motor bracket (8). Use eye bolts. Place the motor on a suitable base. Fig. 161 GEA Westfalia Separator Group...
(1) and (2). vicing / Removing the Fig. 162 Prevent secondary motor 1 from falling down. For example, with a forklift and pallets. Loosen nuts (2) of the threaded rods. Lift out the motor. Fig. 163 GEA Westfalia Separator Group...
- Arrange the belt on the motor - Arrange the belt on the motor belt in the middle side side - Decanter belt pulley: Arrange the belt on the motor side Chapter "Replacing motor belt pulley (taper lock bush)" GEA Westfalia Separator Group...
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(the speed table is not part of the standard customer documentation). Reset the original state following maintenance work. - The grooves used can be recognised through traces of use. - Unused grooves are painted completely. GEA Westfalia Separator Group...
V-belts will wear prematurely. Tighten screws (10) alternately and evenly. - Check the torque after 0.5 - 1 operating hours. Fill the puller holes with grease to prevent penetration of foreign bodies. GEA Westfalia Separator Group...
13.2.2 Maintenance work once a year .............. 207 13.2.3 Maintenance work before resuming operation ........207 13.3 Disposing of the centrifuge ..............207 13.3.1 Disposing of utilities ................208 13.3.2 Disposing of cleaning fluids ..............209 GEA Westfalia Separator Group...
If this action is not taken, the roller bearings of the machine in particular will be dam- aged by corrosion and one-sided load. This bearing damage results in high conse- quential costs. The required preserving measures should be monitored by GEA Westfalia Separator Service. 13.1.1...
Option: Connect the space heaters for the motor winding. This is especially im- portant in the case of high air humidity in the environment. Carefully clean the motor. Spray on anti-corrosive wax (see spare parts catalog). Check and, when necessary, touch up the corrosion protection once a month. GEA Westfalia Separator Group...
Op = Operator Skilled = Skilled worker Tspec = Trained specialist 13.3 Disposing of the centrifuge When the centrifuhe has reached the end of its useful service life, the plant operator is responsible for proper and correct disposal. GEA Westfalia Separator Group...
Decommissioning BAA8011-855EN / 09.01.20 It is recommended to commission a company specialized in the disposal of machines or to obtain information from GEA Westfalia Separator service. Observe applicable local disposal regulations. Comply with environmental protection legislation. Have electrical connections disconnected by qualified personnel, e.g. electricians and high voltage electrician.
Comply with applicable environmental protection legislation. Drain residual liquids in feed lines and utility lines into suitable vessels and dis- pose of them properly. Observe regulations on product contact. GEA Westfalia Separator Group...
Spare parts BAA8011-855EN / 09.01.20 14.1 Use only genuine spare parts. All spare parts, wear parts and operating materials are originally packed by GEA Westfalia Separator. The original packing is provided with the marking shown. Fig. 170 WARNING Danger due to defective spare parts Non-genuine or non-approved spare parts or operating materials reduce the availa- bility of the centrifuge.
Part number: see spare parts catalogue. The part number is sometimes engraved on the individual parts. Information required for ordering third-party components: All specifications on the nameplate of the subcontractor, e. g. pump type and pump number. GEA Westfalia Separator Group...
Shorter drive belts can be stored in racks. Piles exceeding 3000 mm in height should be avoided because otherwise the bottom drive belts will be deformed. Hooks and nails are not suitable for hanging up drive belts. GEA Westfalia Separator Group...
Clean the lubricant containers before opening them to prevent contaminants from getting into the lubricant. Even the smallest foreign matter in the lubricant can dras- tically reduce the life of the roller bearings. GEA Westfalia Separator Group...
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Excellence Passion Integrity Responsibility GEA-versity GEA Group is a global engineering company with multi-billion euro sales and operations in more than 50 countries. Founded in 1881, the company is one of the largest providers of innovative equipment and process technology.
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