IBCs & FIBCs
The customised solution
Customised bulk bag dischargers from Spirofl ow ensure even diffi cult contents will be discharged effi ciently
S
pirofl ow offers nine different types of Bulk Bag Discharger that have been introduced and developed over the past 25 years to cater for the majority of applications. Models range from simple bag hanging frames for the easi- est, free-fl owing, dust-free plastic granules, through dischargers capable of promoting the fl ow of the most diffi cult products, to those able to ‘totally’ contain the most obnoxious chemicals or active pharmaceuticals. However, there are always those ap- plications where a customised solution is the only answer. To meet these challenges, Spirofl ow applies its years of engineer- ing and applications experience. An excellent example of this being the range of mobile Bulk Bag Dischargers the company has built for road and other types of tanker loading. These include variants for use on docksides to discharge the
contents of bulk bags straight into ISO and other tankers as they are unloaded from ships. Dependent upon the distance from where the bags are stored/landed to the discharger, the speed at which operatives can rig the bag onto the special lifting frame and the speed at which the forklift truck driver can load bags into the discharger, it is possible to unload between 10 and 15 bags an hour – this is also dependent
44 June 2012 Solids and Bulk Handling
upon the fl ow-ability of the material too! Dischargers for outdoor use can be fur- nished with a partial enclosure, to offer some protection from rain or sea-spray in heavy weather conditions, whilst not restricting the loading of bags into the discharger. The bulk bags sits on to a support dish which has a fl exible membrane seal through which the neck of the bag passes. This neck is then ac- cessed via an interlocked access door in the dust cabinet located directly below the bag
A typical mobile Spirofl ow bulk bag discharger in operation on a dockside
integral conveyor – all with the product totally contained and protected from the elements. The conveyor can be a fl exible screw, aero- mechanical, rigid screw or pneumatic con- veyor - as best suits the material/application. Spirofl ow is well used to handing bags that have become compacted during ship- ping, road transportation or storage and, also those which contain materials that are otherwise just plain diffi cult to discharge. The company has three types of massagers in its armoury that can be ap- plied to their dischargers to ‘earthquake’ material out of bags, as required. An agitator can be mounted within the col- lection hopper to ensure that there is no bridging of material across the inlet of the conveyor. Spirofl ow supplies the weather- proofed electric controls. When pinch bars or bag massages are required, the mobile discharger can be supplied with an integral compressor to
support dish. The neck is pulled though a set of opposing, horizontally acting ‘vee’ shaped pinch bars. These can only be operated when the access door is closed and they ‘strangle’ the neck of the bag. This allows the neck of the bag to be untied and then with the access door closed again, the pinch bars can be opened – allowing the bag’s contents to discharge into the collection hop- per and be transferred on into tanks via the
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operate them. As standard, Spirofl ow Bulk Bag Dischargers have spring loaded bag support arms which stretch the bag as it empties to ensure that there is no wrin- kling of the bag and/or its liner to affect the rapid discharge of material. ■
For more information contact Spirofl ow on tel: +44 (0)1200 422525 or visit: www.spirofl
ow.com
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