User Manual 2007
Contents
1. The pressure equalising valve on the silo roof will equalise excess pressure and sub pressure arising in the silo due to temperature changes The pressure valve may be blocked by grain insects and dust so once a year the valve must be opened for cleaning Check and clean the pressure valve after harvest when the silo has been filled up so as to remove impurities blown up at the filling Control of Pressure Valve type WAM If the silo is equipped with a WAM pressure vacuum valve diam 273 mm WAM printed in the rain hood it is to be checked in the manner described below a Dismantle the rain hood by removing the three nuts holding it b Check that the rubber gasket is intact Check that all springs four are intact C Remove dust and dirt on the valve d Check that the vacuum valve the part in the middle with one spring works by pushing down the plate so that the spring is tightened and then release it quickly the plate is to snap back again and tighten against the rubber gasket e Check the excess pressure valve the part mounted with three springs Grab the plate with both hands and pull upwards until the springs are tightened and then release it quickly the plate is to snap back immediately and tighten against the rubber gasket f Then mount the rain hood again and tighten the nuts 2 3 Pressure Testing Always make sure that your silo is air tight sealed Assentoft Silo recommends that the silo2. 3 assentoft silo User Manual 2007 Congratulations on your sealed steel silo for storage of grain A silo providing a number of benefits for you henceforward such as e no drying costs e flexible and improved combine harvester utilization e substantial work savings on transport and handling e no pests will survive in this silo e grain from a sealed silo will emit less dust and will increase the appetite of the animals however you will of course have to observe certain rules for use such as described by us below The need to follow these rules to the letter will be stressed on account of the substantial values represented by the contents of the silo and in view of the consequences to the grain caused by non observance of these rules Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO Tlf 86494566 Fax 86494863 E mail info assentoftsilo dk assentoft silo Table of Contents 1 General Directions and Safety Directions 1 1 Safety Directions 2 Prior to filling each year 2 1 Tightening of Anchor Bolts 2 2 Check before filling Control of pressure valve 2 3 Pressure Testing 3 Service Agreement 4 Filling of Silo 4 1 Moisture Percentage 4 2 Control of CO Content in silo 5 Addition of Carbon Dioxide CO3 5 1 CO Equipment 6 Unloading Auger 6 1 Sealed Opening Sealed Opening Open Sealed Opening Closed 6 2 Mounting of Belimo motor 7 Remedying of Bridge Formation 8 Emp
3. feeding propeller loosened The worn inner auger is removed and a new one mounted It may prove necessary to replace the plastic part at the bottom of the trough Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk E assentoft silo 12 3 Maintenance Chain Conveyors Chain conveyors require maintaining lubrication of bearings chain and check of V belts When the chain conveyor is running do not put your hand into the inlet and outlet as well as control damper The V belt tightening is generally to be checked every three months Remove the belt screen check the tightening and if required tighten the V belt using the motor bracket set screw For frequent use of the chain conveyor check the V belt tightening every month If retightening is no longer possible the V belt is to be replaced The chain tension is to be checked regularly this is done by dismantling the cover plate on one of the middle sections allowing you to lift up the chain and check the tension Check that the carriers are in good condition and that the cleaning belts belt on every third carrier is not defective otherwise these are to be replaced Also check that the chain is not stuck 12 4 Cleaning of Chain Elevators or Chain Conveyors The conveyor should be cleaned regularly to prevent product mixing bacterial growth and damage to the product To prevent overheating dust set
4. silo until it has been well aired Leave the top door and man door open for draught for a minimum of 24 hours _ REMEMBER always to switch off the power for all work on mechanical parts Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk E assentoft silo I 2 Prior to filling each year 2 1 Tightening of Anchor Bolts For cleaning of the silo before harvest itis recommended that anchor bolts be tightened The bolts at the base clamps are to be tightened since steel and concrete work differently and there may thus be base clamp bolts which may be tightened further Silos erected before 2007 Silos erected before 2007 have base clamps inside Older silos having inside oblique concrete edges are not to be tightened If the silo is not emptied before harvest we recommend that the silo be tightened next year Instruction The anchor bolts are placed inside the silo along the silo wall The anchor bolts press the base clamp down on the angle bar so as to lock the silo Tightening of the bolts is to be performed by using a face wrench The bolts will have been adequately tightened when an ordinary man has pulled hard using an extension pipe or similar Silos erected in 2007 or later Base clamps may be tightened from outside 2 2 Check before filling Since chaff and impurities from the grain will accumulate at the outer edge of
5. six months The bearings are also to be kept free of dust and dirt 12 6 Service Agreement on Conveyor and Milling Mixing Equipment Our service department also offers contracting of a service agreement on check up and control of various conveyor and milling mixing equipment Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk
6. the silo and will finally settle there the silo must be emptied and cleaned prior to commencing each filling Prior to filling check the silo the grain unloading auger and the sweep arm auger Put the sweep arm self emptying auger of the silo in place see pages 12 13 Check that all silo and auger gaskets are in order close fitting Check and mount slats in the man door Check that all doors are closed Tighten moderately and alternately on all nuts Check that the inlet at the top of silo has been placed so as to ensure that there will be no skew filling e Check gas tight opening to be cleaned of dust intact gaskets flap closing tight should also be checked about every three months e Check that bearings on the out transport up to and including sealed opening are tight as there would otherwise be a risk of leakages and leakage of CO Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo e Inspect the bottom joint inside visually if moisture has penetrated contact Assentoft Silo for a compression test or run a compression test yourself see below and any rep of bottom joint e Check correct direction of rotation on the sweep auger anti clockwise viewed from the outside at silo wall e Sweep around the base so as to leave no chaff or other waste by the bottom joint Check of pressure valve type ASSENTOFT
7. these remedies work Assentoft Silo should be contacted 8 Emptying by suction unit WARNING If the silo is emptied by a suction unit the top door and the man door are to be opened otherwise you will risk suction the silo roof down or the silo wall in WARNING The large man door or the extra emptying branches may not be used for taking out heavy grain quantities unless the grain unloading auger or the suction head are conducted close in towards the silo centre in min 1 3 in relation to the silo diameter If heavy grain quantities are allowed to run down the silo wall there will be a risk of the silo wall being sucked in when the grain pressure disappears all of a sudden Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk B assentoft silo 96 9 Person Access WARNING REMEMBER that the silo may in no circumstances be entered without preceding thorough airing and checking that there is oxygen in the silo candle light checking The silo contains carbon dioxide CO which is heavier than the oxygen and will thus drift downward So while staying in the silo there should be constant supply of fresh air for instance by grain blower Never enter the silo without having a helper standing by the silo door so that if necessary you may get immediate assistance Always use safety line Be aware of any risk of collapsing grain REMEMBER always t
8. S O e Dismantle the 4 hexagon ML O screws on the end cover PIN SIA BNE SAX ii pos 35 on both gear laa io IP N boxes and remove the end iY H H y ks ay VU TE y cover pos 13 A Ao HN TO Remounting to be EFFE performed in the reverse A YN pH G KZ 2 order when the gear has been refilled KA ERY Lar Tr San e If the end cover is provided e SOO with a thread plug silos as Vr EA s BO TIR B from 2007 grease is to be GB st refilled to the edge of the EA Nyy SY hole o PN UB e EZA 5 OE eD 9 DSPODODOGOOGOOGVOL In particular make sure that the grease has not been polluted by water assuming a dull grey colour and that the grease has not dried up if so replace all the grease Each gear box shall hold about 1 5 kg of grease for optimal greasing Recommended grease type Q8 Rubens 00 DIN 51825 parts 2 3 Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo kes 12 Conveyor System Service Directions 12 1 Safety Directions The electricity connection to the units supplied may be performed by an authorized electrician only The safety equipment removed during repair cleaning or maintenance works shall be screwed on again before putting the conveyor back into use The electro motors are dimensioned so that they cannot be overloaded during normal operat
9. ain in the direction towards the silo outlet NOTE The water head meter mounted will not deflect when the silo is all full The sealed system will work optimally when the silo is filled up at harvest time and will be emptied entirely before the next harvest 4 1 Moisture Percentage For optimal fermentation the grain moisture percentage is to be 18 22 By fermentation metabolism the oxygen in the silo is used and particularly carbon dioxide CO and alcohol are formed for good preservation of the grain and for a good feed product A high moisture percentage will not damage the grain in the sealed silo the fermentation will become more effective the animals will get a bigger appetite and the grain itself will generate CO Adding CO to advance the preservation is mostly needed at low moisture percentages Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentott silo Li 4 2 Control of CO Contentin silo The silo CO content may be checked by lowering of candles a hurricane lantern in the top of the silo If the light goes out when the hurricane lantern is just above the grain all oxygen will have been displaced by CO and no further CO is to be added 5 Addition of Carbon Dioxide CO2 CO is heavier than oxygen and will settle in a manner protecting down around the grain It is recommended to add 0 5 kg of carbon dioxide CO2 pe
10. ce Push in protective pipe 2 Place extreme end in the emptying pipe 3 Tighten door 4 Check coupling as well as gear box for oil leakage 11 2 Emptying Take out the part of the grain sliding down by itself using the ordinary sealed auger When the silo is about to be empty and the grain cannot by itself slide down to the unloading auger pull out the protective pipe 2 and the sweep arm auger is then started It will ease the starting of the auger that both the sweep arm auger and the unloading auger are started for 5 10 minutes when the protective pipe has been pulled out a little more than halfway out 11 3 Automatic Start Up of the sweep arm auger Setting of load relay type RC15 e Set Hyst button on MIN e Set level button green light must be on e At empty auger turn level button upward from MIN until the read light will just switch on e At loaded auger turn level button from MAX until the red light will just switch off A A Ae 4 ee ie N 111 OO494900 rax 00494000 C ie THOWaASSCILONSINIU UR assentoft silo ae 11 4 Refilling of grease on sweep arm auger gear box see drawing above The two gear boxes are greased For optimal greasing of bearings and gearwheels the gear boxes AOXDOADABOOOY are to be filled refilled with grease at least once a year Q The gear is opened in the gear is op A f manner described below SA
11. d flap entirely and mount the Belimo motor as shown on photo below Turn throttle motor by loosening disconnecting the gear Push the black button Tighten the clamp well and run a test by loosening the gear and turning the flap manually e Be aware that the gear is not quite out in its extreme position when the flap is closed as the density function is not adequate e Mount setting indication and adjust as per instructions pages 9 and 10 mr N wi m o o r black button LUJ omme JE Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO Tlf 86494566 Fax 86494863 E mail info assentoftsilo dk E assentoft silo pr 7 Remedying of Bridge Formation If bridge formation occurs in the grain inside the silo the measures described below may be attempted e lf the silo is provided with a sweep arm auger this is started without removing the protective pipe e Removing the sealed unloading auger 0 3 m in or out of the silo e Loosening the auger flange and entering a 2 3 m PEL pipe or similar e Dismantling the auger Bolt a max 20 cm chain on the auger end mount and start the auger The chain may not reach the auger outer pipe The sealed silo system is based on continuous emptying so it is recommended to counteract subsequent bridge formation to take out daily in the filling period a small batch of grain from the silo thereby turning the grain in the direction towaras the silo outlet If none of
12. ion if they have been correctly mounted and installed The motor safety switch will switch off the power supply if the motor is overloaded or if there is a fault in the power supply Fuse and motor safety switch to be checked and if necessary replaced by an electrician For any repair the power source is to be dismantled for there may be others who may accidentally start the conveyor 12 2 Maintenance Chain Elevators Chain elevators require maintaining lubrication of bearings and check of V belts When the elevator is running it is prohibited to remove the control opening slide blind plate or auger flighting and to put your hand into inlet and outlet The V belt tightening is generally to be checked every three months For frequent use of the elevator check the V belt tightening every month If retightening is no longer possible the V belt will have to be replaced It is also important that the chain be checked and the two bolts may have to be tightened The chain elevator side augers will wear more or less depending on the dirt part of the conveying material and are to be checked annually for wear or damage Damage to the side auger may occur as caused by foreign bodies such as wood stone or iron pieces If foreign bodies have settled in the auger these may be removed by a suitable tool but in no way manually If the inner auger is worn down it must be replaced To do so roof covering is to be removed Bolts in
13. is pressure tested every year or every two years by trained service fitters See below item 3 Service Agreement Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo 3 Service Agreement Assentoft Silo offers to contract a service agreement on pressure testing and control of silos This service contract covers annual or every two years pressure testing and control of your silo plant including filling and emptying conveyance possibly also a mill mix plant 10 discount is offered on spare parts and pressure testing when a service agreement is contracted Any repair relating to pressure testing to be settled at our normal fitter hourly rate Please contact us for an agreement 4 Filling of Silo The grain is delivered straight from the combine harvester up into the silo Cleaning the grain of dust chaff sand and earth may prove beneficial The grain auger and the silo are to be kept air tight closed in the filling period The top door is to be closed in unstable weather periods and for harvest breaks of more than one day When the silo is full the pressure equalising valve is to be cleaned and the top door closed The sealed silo system is based on continuous emptying so itis recommended to counteract subsequent bridge formation to take out daily in the filling period a small batch of grain from the silo Thus turning the gr
14. o switch off the power when working on mechanical parts 9 1 Respirators and filter masks dust masks If the silo cannot be aired when staying in the silo special respirators may be used consisting of whole or half masks supplied with fresh air from a compressed air compressor mounted with a pressure tank oil and water separator pressure control and air filter When staying in silos containing grain filter masks are to be used to filter off grain dust REMEMBER that these masks do not protect against lack of oxygen The silo must still be aired thoroughly and oxygen must be present before staying in the silo 10 Feeding and Storage Grain taken out from the silo will on account of the moisture have a limited life during storage Its life will of course depend on the grain moisture and the temperature effect The sealed system rests on the assumption that the silo will be filled up and that after that there will be continuous unloadings on a daily basis or as a minimum once or twice a week In cold winter periods whole grain will keep for several weeks In the hottest part of the summer its life will be reduced to a few days Milling will reduce its life further Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentott silo er 11 Flat bottom with sweep arm auger 11 1 Prior to filling Check the sweep arm auger 1 and run into pla
15. r m of grain in the silo for instance M silo Tons of Kg CO M silo Tons of Kg CO barley wheat barley wheat 160 104 119 80 1485 1039 1188 743 316 221 252 158 1583 1108 1266 792 434 303 347 217 1682 1177 1345 841 712 498 569 356 2048 1433 1638 1024 937 655 749 469 2565 1795 2052 1283 1115 780 892 558 3062 2142 2449 1531 1274 891 1019 637 3560 2492 2848 1780 1387 970 1109 694 4057 2839 3245 2029 It is recommended to add CO as the silo is being filled with grain If there is a harvest break lasting more than two days CO is to be filled to the extent matching the quantity of grain in the silo Also add CO if e the bottom door of the silo has been opened e the grain unloading auger has been open e the sealed opening has been opened beyond the unloading time 5 1 CO Equipment Liquid CO is added to the silo through a carbon dioxide valve mounted on one of the silo doors The setting of the CO valve is fixed so that a 20 kg CO cylinder will be emptied in about 24 hours The ball in the glass should be off the18 20 l min mark marked on the glass Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo I 6 Unloading Auger _ REMEMBER always to switch off the power when working on mechanical MA parts The grain unloading auger which is extended outside the silo is pro
16. tlements at motor and gear are to be removed regularly At least once a year the entire conveyor should be cleaned and checked for faults and wear and tear Cleaning will be required when changing crops in order not to mix these For conveying of highly adhesive products such as rape maize corn soy meal and similar all inlets and outlets are to be checked 12 5 Maintenance Bucket Elevator Bucket Belts Check that bucket belts are properly tightened and run straight If the elevator is new or if a new bucket belt has been mounted the belt is to be checked after about 50 hours of operation After this a check and possibly an adjustment is to be made for every approx 500 hours of operation At least once a year for every approx 2 000 hours of operation the bucket belt and the buckets are to be checked for any cracking damage and loose missing bolts Gear Gear Motor The oil volume in the gear is to be checked prior to starting up It is recommended to change oil the first time after about 10 000 hours of operation after that for synthetic oil Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo ae at an interval of 20 000 hours of operation The gear motor is to be cleaned of dust and dirt Compressed air may have to be used Lubrication The bearings are provided with a lubrication nipple and are to be lubricated about every
17. tying by suction unit 9 Person Access 9 1 Respirators and filter masks dust masks 10 Feeding and Storage 11 Flat bottom with sweep arm auger 11 1 Prior to filling 11 2 Emptying 11 3 Automatic Start Up of the sweep arm auger 11 4 Refilling of grease on sweep arm auger gear box 12 Conveyor System Service Directions 12 1 Safety Directions 12 2 Maintenance Chain Elevators 12 3 Maintenance Chain Conveyors 12 4 Cleaning of Chain Elevators or Chain Conveyors 12 5 Maintenance Bucket elevator 12 6 Service Agreement on Conveyor and Milling Mixing Equipment anf eA O Assentoft Silo A S Silovej 1 Assentoft 8960 Randers S TIf 86494566 Fax 86494863 E mail info assentoftsilo dk Bassentoft silo 1 General Directions and Safety Directions Please read the entire instructions for use before putting the system into operation The warranty will lapse if the conditions mentioned below are not met e Assembly commissioning and operation shall be performed to the instructions of these directions for use e Assentoft Silo original spare parts shall be used exclusively 1 1 Safety Directions Electricity connection to the equipment supplied may be performed by an authorized electrician only Assentoft Silo shall not be liable for any damage caused by incorrect use or technical changes of the system in relation to the substance of these directions for use Warning In no circumstances may anyone enter the
18. vided with sealed air tight joints so as to prevent leakage of CO REMEMBER always to ensure that the sealed opening of the auger is close fitting and that all the auger joints are air tight If leakages occur the carbon dioxide will leak out of the silo WARNING Leaving the grain unloading auger open will make the silo carbon dioxide contents leak out oxygen will leak in and the grain will start breathing during the heat development etc If the grain has taken heat CO should be added to the silo 6 1 Sealed Opening When adjusting flap boxes See pages 9 and 10 be aware of the setting indication at sealed opening closed and sealed opening open Further please refer to the cleanout access door on page 10 Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO TIf 86494566 Fax 86494863 E mail info assentoftsilo dk EE assentoft silo ade SEALED OPENING OPEN NOTE SETTING INDICATION Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO Tlf 86494566 Fax 86494863 E mail info assentoftsilo dk EE assentoft silo a Release button for gas tight door released for cleaning NOTE Switch off power NOTE SETTING INDICATION SEALED OPENING CLOSED Cleanout Access Door Assentoft Silo A S Silovej 1 Assentoft 8960 Randers SO Tlf 86494566 Fax 86494863 E mail info assentoftsilo dk EE assentoft silo 6 2 Mounting of Belimo motor Close the seale
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