Information

HAVERSemi-bulk Filling

Technology

HAVER & BOECKER

HAVER & BOECKERhave been producingfilling and weighingsystems for flexiblepackaging such as FIBCs, octabins, cartonsand other semi-bulkpackaging units for over20 years. When com-pared to conventionalbags or other smallpackages, these systemsrepresent a cost effectivealternative within thelogistical supply chainfor handling bulk prod-

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Semi-bulk containersFIBC – Flexible intermediate bulk container

Stable Big-bags

ucts. HAVER technologyis suitable for all applica-tions involving fillingand bagging of solids.Commercially availableFIBCs with 1, 2 or 4loops and a rigid fillingspout or open top sideare easily filled. Specialbig-bag design featuressuch as baffles forimproving stability havebeen fully taken intoaccount during thedesign phases of our filling systems.

In combination with acarrier frame, barrels andcartons may be filledusing the same weighingsystem. For big-bagswith PE liner, the fillingsystem is equipped witha bag inflation unitwhich expands the bagbefore filling starts. Forthis operation, systemsusing compressed air orblowers are available.Using modular configu-rations and provencomponents, we deliver

optimized individualsolutions that fulfillspecific technical needs,are economical andenvironmentally sound.

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Filling system for FIBC with one loop

FIBCs with one loop havepenetrated the market,especially for largequantities of loose, bulkmaterials such as cement,fertilizers, etc. wherehigh filling rates can beachieved using basictechnology. For the mostpart, the technologyinvolves bags that arefilled, weighed andtransported whilehanging, and assuringbag stability forsubsequent transport by a forklift.

Depending on materialflow characteristics,filling rates of up to 40 Big-bags per hour areBig-bag filling and weighing system

HAVER Big-bag weigher

possible. For filling, thespout is inserted into thebag opening. The bagloop is hooked to thesuspension hook whichin turn is connected tothe suspension eyelet ofthe weigher load cell. Using a START button,the filling cycle startsand the product issimultaneously weighed.A cone valve regulatesproduct feeding into thebag. After the fillingends, the filled bags aretransported away fromthe filling station by thestacker and changeoversuspension hooks. Thechangeover suspensionhooks assure continuous,uninterrupted production.Weighing and fillingparameters are selectedusing the weighingelectronic. By usingoptional suspensionframes, 2-point or 4-point FIBCs may be filled as well. Efficient filling andweighing systems thathave robust, long lastingand precise constructionare the results of ouryears of developmentwork.These filling systemsmay be laid out in pairsfor direct loading oftrucks, or they may bestationed as mobile unitsunder silos.

The decisive factors for optimum filling andFIBC stability are theappropriate air extractionrates and productcompaction, as to theproduct’s properties.These are the keys toHAVER’s proventechnology.

Powder type products,which are filled in a fluid state, are preferablyde-aerated by using avacuum probe. For thisoperation, the vacuumprobe is made of HAVERPoroplate® wire mesh andused according to thefilling volume. The pore size of the vacuumprobe is determined by the smallest graindiameter of the product(min. >1µm). Airextraction from theproduct occurs duringcoarse filling, or afterfilling and is programma-ble via the control unit.

Product compaction andreduction of the product

Product compaction during filling

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Air extraction from the productusing the HAVER Poroplate®

vacuum probe

Photo left:The vibration unit is integratedwith the roller conveyor

shear angle have beenoptimized for a widevariety of products byemploying a HAVERvibration unit.Depending on theproduct’s properties, an individual vibrationsystem is selected.Agitation motors,controlled by a frequencyinverter, allow selectionof a frequency that bestmatches the product’sproperties. Depending onthe product’s flowcharacteristics, thisassures the selection ofthe optimum compactionparameters.

All product-specificadjustment parametersare selected via thecontrol panel.

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High performance filling station equipped with two vibration units.

High performancemachines for powder-type, loose materialsrequire systems thatmatch the product. Forfilling rates of over40 bags per hour, a fillingsystem with two com-paction units may beused. The product iscompacted at the filling

station by a HAVERvibration table. Foroptimizing productivity,the filled but not yet fullycompacted bag is thentransported to a subse-quent compaction stationwhere a second vibrationtable further compacts theproduct. This results infully compacted FIBC

filled bags, even at highfilling speeds. Thesuccess of this systemhas been proven,especially when fillinghighly fluid, loosematerials. Thecombination of vacuumair extraction and avibration unit is also aproven system

configuration forachieving the highestpossible filling speeds.

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HAVER product dosing and system components

Screw conveyor dosingfor

powder type products

Electro-magnetic feeder for

coarse product

Cone dosifo

micro

1. Guide assembly

2. Operator’s panel

3. Hoisting unit

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4. Load cell

5. Pneumatically operated hook

6. Filling spout with an inflatable sleeve(option)

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ng system r pellets

Flap-dosing for

granulated products or pellets

Belt conveyor dosing for

blended products

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The wide variety ofavailable FIBCs requiresa variable filling headthat can be optimallyoperated when fillingbags of different sizes.The HAVER FIBC fillinghead has been optimizedfor easy operation. Therear hooks are swiveledin position by a pneumat-ic cylinder and is easilyaccessible by the opera-tor. The filling stationthen swings over to theoperator. Dust-free fillingof the FIBC is assured byan inflatable sleeve and acounter-pressure ringinstalled at the fillingspout.

The sturdy filling head isattached to 3 load cells,which are connected tothe HAVER electronicweigher system andassure precisionweighing – even fortechnically difficult, freeflowing materials.

The HAVER FIBC fillingsystem has proven itselfto be a high performance,reliable filling system –even when operated inextremely dusty oraggressive environments.

Together with theoperator’s terminal, the HAVER electronicweigher system fulfillsall the requirements for easy, functionallyappropriate operation of filling stations. Allimportant functions anddata are displayed online.

Operation

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Diagram above:Diagram of an FIBC fillingstation with an integratedvibration unit

Photo left:Operator’s terminal for theelectronic weighing system and touchpanel for machineoperation

To avoid product leakagefrom the filling spout dur-ing bag changes, a fillingspout closure unit may be installed as an option.After the filling step iscompleted, the closureunit tightly closes off theend of the spout. As a result, contaminationof the outside surface ofbags from residualproduct spillage iseliminated. This closureunit is designed not tointerfere with productflow during filling.

The HAVER FIBC fillinghead may be combinedwith an automatic bagclosing unit. For closingof the bag after the fillingoperation, the filling headis decoupled from thecompressed air systemand, by rotating the fillingspout, a so-called “tulip”is formed. The dust-free,wound bag may be theneither manually or auto-matically closed using ametal clip. Except forhanging empty bags, thisoption assures a complete,functional process thattakes place automatically.

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Options

Filling spout closure unit

Big-bag closing unit

Especially where highfilling rates and thesubsequent transport ofthe filled bags on palletsare foreseen, it makessense to add a pallettransport system. Rollertracks and pallet dis-pensers are available for achieving this and are customized to meetspecific fillingrequirements. If desired,a slip sheet applicatormay be included as well.

Pallet transport

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Perfectly centered, double big-bag stacking

A complete Big-bag filling system equipped with a pallet unitizer, roller system and filling station

If bags with smallerweights are to be stackedover each other, theroller tracks may bereversible and therebyallow, for example, 2 oreven 3 bags to be auto-matically stacked underthe filling head. Preciselycontrolled conveyorelements assure perfectlycentered FIBC stacking.

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This filling station,which is designed foroctabins and FIBCs witha filling speed of maxi-mum 40 bags per hour, isan example of technolo-gy that exactly fulfills theneeds of a specific appli-cation. Together with aHAVER net weigher andan integrated HAVERvibration station, plasticpellets are optimallybagged and sealed.

The entire unit is built onwheels, is fully mobileand may be docked underany silo of choice. Allproduct relevant data aretransmitted via a radiocommunication systemfrom a central controlroom. In addition, this fillingstation is equipped withan automatic watercleaning system thatprovides quick and easycleaning during productchangeovers.

Mobile semi-bulk filling station

System variations

Ein Team erfahrenerIngenieure unterstütztund berät Sie von derErstellung desAnlagenkonzeptes biszur Inbetriebnahme.Für die Detailplanung,

Abwicklung undDokumentation stehen uns modernsteHilfsmittel zurVerfügung.

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HAVER & BOECKER

P.O. Box 33 20 • D-59282 OELDE, Germany • Phone: +49-25 22-30 0 • Fax: +49-25 22-30 403 • E-mail: mf@haverboecker.com

THE ORIGINALS

ROTO-PACKER

HAVER

T-CLASS

HAVERFine-Line

HAVER

TYCAN H-CLASS

INTEGRA

HAVERTHE BENJAMIN

HAVER

FILLCEMROTOCEM

Pelletising Discs

HAVER

I BAU HAMBURG LIQUIDS FRONTLINE

MADE BY THE HAVER GROUP

SILOS

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