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Operation and maintenance manual for

Hydrotech Discfilter HSF31-series

Contents

PREFACE................................................................................4
1..SAFETY.PRECAUTIONS...................................................5

1.1 Safety alert symbols ...................................................................5
1.2 CE Marking  ................................................................................5
1.3 Redesigned equipment  ..............................................................5
1.4 Personnel requirements .............................................................5
1.5 Emergency shutdown .................................................................6
1.6 Electrical safety...........................................................................6
1.7 Safety instructions ......................................................................6

2..HYdROTECH.dISCFIlTER.17/2100-SERIES...................7

2.1 Overview .....................................................................................7
2.2 Identification of the filter ..............................................................8

3..RECEIVING.ANd.HANdlING............................................9

3.1 Receiving ....................................................................................9
3.2 Storage .......................................................................................9
3.3 Lifting ..........................................................................................9

4..GENERAl.INSTAllATION.INSTRUCTIONS..................10

4.1 Installation site ..........................................................................10

4.1.1 Outdoor installation ..........................................................10
4.1.2 Foundation .......................................................................10

4.2 Emergency by-pass ..................................................................10
4.3 Electrical connection .................................................................10
4.4 Equipotential Earth Bonding .....................................................10
4.5 Pipe connections ...................................................................... 11
4.6 Backwash system ..................................................................... 11

5..START-UP.ANd.OPERATION..........................................12

5.1 Start-up procedure ....................................................................12
5.2 Control settings .........................................................................13

5.2.1 HAND mode – continuous rotation ..................................14
5.2.2 AUTO mode – automatic level control .............................14
5.2.3 Adjusting the level sensor ................................................15
5.2.4 Setting the time relay .......................................................15
5.2.5 Setting the level relay .......................................................15

5.3 Backwash system .....................................................................15
5.4 Drum rotation ............................................................................15
5.5 Re-tightening of bolts ................................................................15

Содержание HSF17 Series

Страница 1: ...Discfilter HSF31 series Operation and Maintenance Manual Revised 07 12 21 EN Type 2H 2F 2H 2F Serial No ...

Страница 2: ...ng 9 3 2 Storage 9 3 3 Lifting 9 4 GENERAL INSTALLATION INSTRUCTIONS 10 4 1 Installation site 10 4 1 1 Outdoor installation 10 4 1 2 Foundation 10 4 2 Emergency by pass 10 4 3 Electrical connection 10 4 4 Equipotential Earth Bonding 10 4 5 Pipe connections 11 4 6 Backwash system 11 5 START UP AND OPERATION 12 5 1 Start up procedure 12 5 2 Control settings 13 5 2 1 HAND mode continuous rotation 14 ...

Страница 3: ...gs 19 7 2 1 Lubrication 19 7 3 Filter panels 20 7 3 1 Change the filter panels 21 7 4 Drive chain 22 7 4 4 Check the drive chain for wear 22 7 5 Gear motor 22 7 6 Rubber sealing 22 7 7 Backwash strainer 22 7 8 Maintenance schedule 23 8 TROUBLESHOOTING 24 APPENDICES A Technical specifications B Spare parts list C Dimensional drawing D Circuit diagram for control system optional E Control cabinet co...

Страница 4: ...e manual should always be available to the personnel who work with the equipment It is important that The manual and other applicable documents are preserved during the whole life span of the equipment The manual and other applicable documents constitute a part of the equipment This manual is carefully studied by all users of the equipment and always kept at hand for future reference ...

Страница 5: ...ential personal injury and or damage to the equipment Safety warning labels see Figure 1 1 are affixed to the Discfilter lids to warn personnel to keep hands and fingers away from moving parts of the filter 1 2 CE Marking This equipment is CE marked ensuring that the equipment is designed manufactured and described in conformity with the Machine Directive of EU 98 37 EU AFS 1994 48 1 3 Redesigned ...

Страница 6: ...r switch to 0 stops the filter WARNING Set the safety switch to OFF 0 and lock it in the OFF position by means of a padlock before starting any work on the filter WARNING Access to the filter by unauthorised persons must be strictly prohibited An outdoor installation should be fenced off WARNING The filter can suddenly start rotating if automatic control is activated Do not touch any moving parts ...

Страница 7: ...ydrotech Discfilter HSF31 series 2 Hydrotech Discfilter 3100 series 2 1 Overview INLET SIDE MOTOR SIDE Figure 2 1 Parts of Discfilter HSF31 series Control cabinet optional Drive unit Filter segment Backwash pump optional Disc Piping optional ...

Страница 8: ...xxxxxx xx xxx xxxxFiltertype xx xi x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxwxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xx xxxxSerial No x xxxx xxxx x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxwxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxx xxxxYear xxxxx x xxxx xxi x xxxxxxxxxxxxxxxxxxxxx x HSF3110 8 2F 4634 2008 Figure 2 2 Filter data plate Type of microscreen filter HSF Hydrotech Disc Filter Drum ...

Страница 9: ...or outdoor storage it is necessary to protect the filter from direct sunlight as the heat and UV radiation may damage the filter panels Filters are delivered covered by plastic within the wooden crate If placed outdoors a special type of corrosion may develop especially in coastal areas Humidity on the inside of the plastic forms the anode and dry exposed parts the cathode Filters must therefore b...

Страница 10: ... temperatures warmer than 10 C the lids of the filter is enough for protection At lower water and air temperatures the filter should be installed indoors 4 1 2 Filter assembly Lift the filters into their final operational site Fit the inlet channel on the filter frame Position the filter Check the parallelism of the filter frame Maximum deviation of the diagonal measures are 2 mm See figure 4 1 2 ...

Страница 11: ...emergency by pass In some applications an external by pass must be arranged in case of e g a power failure to avoid a too high differential pressure across the filter cloth 4 3 Electrical connection Electrical connection must be performed according to local regulations Check the settings of the motor protectors against amperage readings on the motors see Appendix A D 4 4 Equipotential Earth Bondin...

Страница 12: ...Piping from the sludge channel must have an inclination of at least 1 4 6 Backwash system A new rinse water pipe system should be flushed for at least 10 min before connecting it to the filter Thoroughly check that no rinse nozzles are clogged Any particles in the rinse water supply must be removed A standard in line strainer can normally be used to remove particles see section 7 7 Figure 4 6 In l...

Страница 13: ... to fill up the tank or concrete chamber with water from an external source or to remove a filter panel and let unfiltrated water flow into the chamber 6 When the water level inside the tank or concrete chamber goes above the suction pipe or the pump if a CRK or MTR pump is installed the pump switch should be set to 1 WARNING The backwash pump must not be started before the water level has risen a...

Страница 14: ...d control the filter has two operation modes 1 Continuous rotation HAND mode 2 Automatic level control AUTO mode Use the selector switch to select operation mode see 5 in Figure 5 2 Warning lamps 1 Drum drive tripped 2 Warning lamp Pump tripped 3 Warning lamp Dry running of pump Other items 4 Reset button for dry running 5 Selector switch Hand Auto 6 Pump switch 7 Safety switch 8 Time relay 9 Leve...

Страница 15: ...tivated when the water level inside the discs reaches the level sensor If an independent rinse water supply is used the level sensor controls a solenoid valve instead of the pump The water level inside the centre discs will vary when AUTO mode is selected The lowest level is just after a backwash cycle and rises until the level sensor is reached The maximum allowed difference of the water level in...

Страница 16: ... in Figure 5 2 If the appropriate sensitivity is not within the selected range change it to another sensitivity range For water with a high conductivity low resistance chose setting 1 For water with a low conductivity high resistance chose setting 3 Sea water for example has a high conductivity See also appendix E level sensors 5 3 Backwash system The standard backwash nozzles TeeJet 6505 have an ...

Страница 17: ...ses through the cloth to the outside of the disc 3 AUTO mode The solids collected on the inside of the filter cloth is gradually impeding the flow of water through the disc The water level inside the disc begins to rise When the water level reaches the level sensor the disc rotation and the backwash starts HAND mode Disc rotation and backwash is continuous 4 Backwash nozzles spray clean rinse wate...

Страница 18: ...wash pump not supplied by Hydrotech is used make sure that the rinse water supply is shut off 2 Remove the lids on the side where the backwash pipe is located 3 Fold out the spray bar 4 Remove the bayonet nut by turning it of a revolution counter clockwise Be careful not to loose the rubber seal 5 Clean the nozzle with compressed air or a plastic brush Never use a steel brush or steel pin as this ...

Страница 19: ... necessary The life length depends on the quality of the rinse water If the rinse water contains coarse sand or similar particles the nozzles will be worn out faster than a nozzle that operates in clean rinse water When a nozzle becomes worn out the nozzle tip opening becomes enlarged see Figure 7 1 2b This leads to a less efficient back wash changed dispersion and higher rinse water consumption T...

Страница 20: ...ngs of the support wheels should also be greased every second week The grease nipples of the bearings are fitted on the outside of the filter Lubrication labels identifying the lubrication points are attached to the filter housing see Figure 7 2 1 and Figure 2 1 The bearings should be lubricated with the grease recom mended in the maintenance schedule see section 7 9 Figure 7 2 1 Lubrication label...

Страница 21: ... with a wide opening size and a cleaning pressure of max 80 bar Never hold the cleaning nozzle directly to the filter media Long term clogging of the filter cloth may be caused by iron calcium or organic material in the water If the problem seems to be precipitation of carbonates or iron then apply diluted hydrochloric acid HCl or available special products based on hydrochloric acid designed for ...

Страница 22: ...ter element with one hand insert the frame and press it to the filter element Turn back filter element holder so the trace fits on the frame 4 Adjust the frame so it fits inside the edges of the filter element Tighten the screw to the bottom It is important to keep the balance of the disc when changing filter panels Never remove all panels on one side of the disc Instead every second panel should ...

Страница 23: ...padlock 7 4 4 Check the drive chain for wear The drive chain must be checked for wear or damage every sixth month 7 5 Gear motor Information on the gear motor is found in Appendix F 7 6 Rubber sealing The inlet rubber sealing between the filter frame and the drum must be checked every year for wear and leakage 7 7 Backwash strainer A backwash strainer can be used to remove particles in the rinse w...

Страница 24: ...grease type NLGI 2 Grease Molykote Multilub Rembrandt EP or equivalent grease Every 2nd week at continuous operation Wash the surface of the stainless steel constructions with clean water Especially in salt water systems keeping surfaces free of contamination minimizes corrosion Every 2nd week or other interval based on experience for the actual application Grease the centre bearings see section 7...

Страница 25: ...ere is power to the relay C Replace the defective level relay D The UP DOWN switch is in the UP position D Set the UP DOWN switch to the DOWN position 2 The filter does not stop after the time set on the time relay A There is permanent contact between the level sensor and the filter tank A Remove any object that could connect the sensor to the filter tank e g biological growth B The level relay is...

Страница 26: ...26 Operation and maintenance manual for Hydrotech Discfilter HSF31 series ...

Страница 27: ...h AB A Veolia Solutions Technologies Company Mejselgatan 6 235 32 Vellinge Sweden Phone 46 0 40 42 95 30 Fax 46 0 40 42 95 31 E mail mailbox hydrotech se Web site www hydrotech se Copyright All rights reserved ...

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