安德里茨设备操作,安装,维修手册

1、delivered with each machine delivery includes also assembly and dimension drawings and part listsSafety instructions - LiftingMounting of EquipmentDuring Operation the supplier of the screen is only responsible for the assembly of the screen prior to delivery during the mounting, the fastening of th

2、e washer installed at the end of the shaft of the electric motor must be taken into account! Check the maximum feed pressure of the screen from the dimensional drawing appended to the instructions Do not use the screen at a temperature higher than notified while the order was being made When the ope

3、rating temperature exceeds 65C (prEN563), even short-term surface contact may cause skin burn All original guards of the screen must be appropriately fastened while the screen is running - do not remove them during operation! All maintenance of the screen and its drive motor is forbidden during oper

4、ationSafety instructions de-aeration of the screen Check the maximum feed pressure of the screen from the dimensional drawing appended to the instructions Do not use the screen at a temperature higher than notified while the order was being made When the operating temperature exceeds 65C (prEN563),

5、even short-term surface contact may cause skin burn All original guards of the screen must be appropriately fastened while the screen is running - do not remove them during operation! All maintenance of the screen and its drive motor is forbidden during operation, except: lubrication of bearingsadju

6、sting sealing water flow and pressureDuring OperationSafety instructions Use appropriate hoisting equipment when lifting the screen Before maintenance, stop the drive motor and disconnect it from the electrical supply Before opening the cover of the screen: make sure that the screen is de pressurize

7、d make sure that no liquid or stock can flow into the screen The screen can be started after maintenance only after: the cover of the screen has been closed all original guards have been installed properly Measure the thickness of the screen material regularly The sealing water valve must be opened

8、before starting the drive motor of the screen!During OperationPower transmission in Andritz screens: V-belts Gearbox - only in large special unitsNOTE!Do not tension the belts overthe recommended area!Tension PrincipleBelt deflectionBending force F- Check the tensioning after 48 hours use- Do not te

9、nsion the belt over the recommended rangeEquipmentF10F20F30F40F50Deflection (mm)1515202025Belt profileSPBSPCSmaller pulley, 160-224236-315224-355375-560mmF (N)35-5050-6560-9090-120Tension V-beltsF6032General instructions for installationPiping Pipes should be supported in such a way that the weight

10、of the pipes is not taken by the screen In locating the supports, take care to ensure that the pipes do not cause stress to the screen The supports must allow for thermal expansion of the pipes If not, connections and screen body will be damaged! Feed, accept, reject, reject dilution, rotor dilution

11、, sealwater, deaeration, junk trap, emptying/flushingPiping and Valve installationInspection before operation Check belt tensioning, the direction of the motor rotation, foundation, foundation bolts and “V-belt pulley taperlocks Check that the interior is clean and that no foreign objects have enter

12、ed the screen Inspect the pipe supports Remove the screen cylinder before starting the screen for the first time (not always necessary, normally according to Andritz start-up supervisor instructions) Operation instructions Before starting the screenInstrumentation and alarms Always carry out a test

13、run with water before productive operation - then the flow control instrumentation can be adjusted and the pressure instruments be checked. To prevent the screen from plugging one of the most important of the instruments is the pressure difference control alarm The seal water measuring rotameter is

14、equipped with a flow guard which can be connected to the alarm center Feed stock consistency regulation takes place right after the supply tank by means of the consistency or dilution flow controllersOperation instructions Before starting the screenOperating instructions - StartingStart the screen i

15、n the following sequence: . Ensure the seal water flow (2-5 l/min). Fill the screen with water. Close the air exhaust valve at the screen cover. Start the screen motor. Open the reject valve (20%), keep accept valve closed, open reject dilution (30%)12345. Adjust the feed consistency to the level sh

16、own in the flow sheet. Adjust the accept valve to the required flow with the feed valve fully open . Adjust the amount of flow to be discharged as reject with the reject valve. Deaerate the screen through the air exhaust valve on the screen cover and close the valve when there is a continuous flow o

17、f liquid from the connection891011. Open the feed valve fully 67. Start the feed pump of the screenOperation control and flow adjustmentMost important in operational control are: When the screen has been started, it requires very little attention under normal operation conditions pressure difference

18、 measurement reject flow regulation reject dilution regulation electric motor load The pressure and flow of seal water should be checked once in each shift!Operating instructions - StartingStop and flush the screen in the following sequence: . Stop the feed pump. Close the accept valve fully while t

19、he screen is still operating. Close the feed valve fully. Open the dilution valve in order to flush the reject and the fibers to reject treatment. Close the reject valve and open the air exhaust valve on the screen cover. Continue flushing until the liquid flowing from the air exhaust pipe no longer

20、 contains fibers. Unless it is necessary to open the cover and carry out a maintenance inspection, the screen can be left filled with water until the next start-up! Close the dilution, fresh water, and air exhaust valves. Stop the screen motor. Close the seal water valve. If the downtime is longer o

21、r intended for maintenance inspections, leave the air exhaust valve open and close only the dilution and fresh water valves. Stop the screen motor. Drain the screen by opening the drain valve. Close the seal water valve. 12345678. Ensure that the motor is disconnected from the electrical network!9Op

22、erating instructions - StoppingForeign objects in a ModuScreenModuScreen does not functionFoundation is not steady enoughShaft is bentRotor is damagedRotor not in balanceScreen cylinder is damagedSliding surfaces of seal are damagedSeals are wrongly installedSeals are of wrong qualitySeal water filt

23、er is blocked-upToo much grease in bearingsDefective lubricationBearings are damagedDirt or water in bearingsUnusually high power consumptionModuScreen is vibratingHigh noise levelSealing housing is leakingSeal water amount is lowBearings are too warmShort lifetime of bearingsUneven accept flowUneve

24、n reject flowFAILURECAUSEOFFAILURESeekeing the mechanical failureMAL-FUNCTIONCAUSE OFMALFUNCTIONFeed pump is too smallModuScreen does not functionFeed pump pressure is too lowHigh feed consistencyLow feed consistencyFeed consistency varies suddenlyHigh feed amountLow feed amountHigh impurity content

25、 in feedLack of deaeration in ModuScreenModuScreen rotates in the wrong directionToo high rotation speedToo low rotation speedReject does not get out of the ModuScreenSealing water is dirtySmall accept flowUneven accept flowUneven reject flowHigh pressure differenceLow pressure differenceUnusually h

26、igh power consumptionSealing housing is leakingModuScreen is vibratingAccept flow stopsSeekeing the malfunctionRecommended lubricantsF50-60 *)Mobilith SHC 460Esso Ronex Extra Dutu 1Shell Albida PPSSKF LGEM 2Neste High temp. grease 1*) Heat resisting lubricantgrades onlyLUBRICANTSF10 - F40 *)Mobilux

27、EP 2Esso Beacon EP 2Shell Alvania EP 2Tebo Multi-Purpose ExtraSKF LGMT 3*) the operating temp. range forthe lubricants is -30.+110 C.Should the temp. exceed +110 C,lubricants are chosen as for F50-F60. LOWER BEARING HOUSING ScreenF10F20F30F40F50-F60BearingtypeNU 2313NU 2316NU 232423228 CC/W33Manuall

28、ubrication:Grease/lubricationinterval35 g/2 months50 g/2 months115 g/2months- - - - *)Centralizedlubrication:Grease/10 h1 g *)2 g *)4 g *)6 gNU 2324115 g/2months4 g *)UPPER BEARING HOUSING ScreenF10F20F30F40F50-F60Bearingtype7313 BG7316 BG7324 BG7330 BCBM/7230 BCBMManuallubrication:Grease/lubricatio

29、ninterval50 g/2 months70 g/2 months145 g/2months- - - - *)Centralizedlubrication:Grease/10 h1 g *)2 g *)4 g *)6 g7324 BG145 g/2months4 g *)*) F50 and F60 can be suppliedWith a lubrication center as anoption*) the standard delivery doesnot include a lubrication center The main scope of delivery is -

30、screen housing and common mounting frame (base plate) - rotor - mechanical seal - V-belt pulleys / V-belts - shaft package - seal water and lubrication system - screen cylinder (electric motor)ModuScreen F10-F60 Screen cylinder and rotor lifting tool Temperature sensors PT100 Temperature isolation V

31、ibration sensors SKF Vibration sensors SPM (no DCS-connection)Accessories Local pressure meters Pressure transmitters (Electrical PMC transmitters)General assembly ModuScreen F10-F60ModuScreen F10-F60123456. Stop ModuScreen, flush and drain the screen. Disconnect the motor from the electrical networ

32、k according to regulations. Remove the air exhaust connection of the cover, open cover and move aside. Unscrew the mounting screws of the spacer ring and lift off the spacer ring . Detach the screen cylinder from its fitting by screwing two spacer ring mounting screws into two opposite threaded hole

33、s M12 in the screen cylinder . Screw two lifting eyes into two opposite M12 holes and lift off the screen cylinder.Screen cylinder - dismountingWash detached parts, inspect potential wear, inspect the condition of the O-ringat the bottom end of the screen cylinder.12 34. Lower the screen cylinder in

34、to ModuScreen. Ensure that the cylinder is straight. The fitting at the bottom end and the anti-torsion screws at the top end guide the screen cylinder into place. . Install the spacer ring into place. When the spacer ring is properly in its place, install the mounting screws of the spacer ring. . T

35、ighten the screws with a torque wrench to a tightness of 60 Nm crosswise following the numbering in following picture. If there are more screws than in the figure, follow the same principle as to the order in which the screws are tightened. . Place the cover back into place and tighten the mounting

36、screws. Screen cylinder - mounting 5. Fasten the air exhaust connection hose of the cover. Screen cylinder - tighteningScreen cylinder - fixingRotor and fixing element NOTE! Do not mix the order of the parts! The central sleeve can be mounted correctly in one way only !Install the rotor on to the sh

37、aft: . THINLY OIL THE SHAFT END, ROTOR HUB AND OUTER AND CONICAL SURFACES OF THE FIXING SLEEVE. Attach two eyescrews into the holes on the rotor hub and lift the rotor onto the shaft. Mount the fixing sleeve part by part in accordance with the following picture Mount the lower conical ring of the fi

38、xing sleeve into place Place the central sleeve on top of the lower conical ring so that the slits in the parts meet each other Mount the upper conical ring (1) so that the slits in the parts meet each other. With a torque spanner, tighten the screws of the fixing sleeve evenly cross-wise, little by

39、 little. Tighten the screws on both sides of the slit after one another. Tighten all screws until they have reached the given tightening torque. 123The rotor must be removed for maintenance purposes or for the inspectionof the mechanical seal or the bearing unit. Remove the pressure plate and the ga

40、sket. Remove the central sleeve part by part. 12RotorTighteningRemoving upper coneRemoving lower coneNOTE! When dismounting and mounting the central sleeve,Make absolutely sure NOT to mix the order of the parts.The fixing element can be mounted correctly in one way onlyThe upper and the lower conic

41、ring must be in their correctplaces(must no be mixed with each other)and the centralSleeve must be the right way up.Fixing element of the rotorTorques:F10:41 NmF20:83 NmF30-F60:145 Nm Standard Andritz mechanical shaft seal is double sided normally manufacturedby: Safematic BurgmannMechanical seals s

42、ealing waterThe requirement of clean sealing water is 0.03 - 0.08 l/s (2 - 5 l/min),the pressure of the water to the seal recommended to be 100 kPa higherthan the maximum inlet pressure of the screen; however, at least 300 kPa NOTE: Burgmann mechanical seals require 100 kPa seal water pressureregardless the pulp feed pressure, provided that constant seal water flow0.0