Bottle washing machines: Filtration of caustic

In the beverage industry, glass and PET bottles have a broad acceptance for a long time. Breweries, mineral springs, soft drink manufacturers or bottlers, that work with deposit systems, use bottle washing machines to clean the glass or PET bottles. Depending on the type of bottle washing machine (single- or double-end), the bottles are first immersed in one or more alkaline baths and subsequently the inside of the bottles is cleaned with the help of spray nozzles.

BOLLFILTER as partial flow filter and protection of components:

Filtration ofthemaincausticsolution

Paper fibers, glue and adhesives, as well as lacquers, cause most problems in the sodium hydroxide solution. This is where the BOLLFILTER Automatic type 6.64 BWM is used in side stream filtration in order to continuously filter the caustic solution since the conventional sedimentation is partially ineffective.

The aim is to remove contamination from the caustic solution as early as possible and to carry as little residue as possible into the subsequent caustic solution baths or into the post-treatment zones.

Protection of the heat exchanger

The BOLLFILTER automatic aquaBoll® / type 6.18 BWM protects the heat exchanger against loss of efficiency and waste of resources.

Directprotectionof spray nozzles

The BOLLFILTER automatic aquaBoll® / type 6.18 BWM increases the cleaning quality for the bottles and avoids the blocking of the spray bars.

Your benefits:

Increases the service life of the caustic solution - reliable dirt removal
Extending the production time through fewer machine stops and unplanned failures
Improved cleaning results
Considerably better overall condition of the machine
No deposits in the flowless zones
Reduced maintenance
BOLL & KIRCH supports a sustainable application here: Reuse of bottles

References

Bottle Washing Machine

When cleaning recycling bottles, a lot of particles, e.g. labels, soiling, cigarette butts, are entering the caustic liquid. As a result the activity of the liquid decreases so that it cannot be used for a long time, its working life is not longer than about 2 weeks. The frequent discharge of caustic liquid from BWM results in a huge amount of waste of caustic liquid, heating energy, water etc. Moreover, it is a big load for the factory’s waste water treatment plant. The downtimes resulting from exchanging the caustic liquid also lead to the factory’s benefit reduction. Therefore, with higher demand of environment protection, all drinking enterprises are urgently looking for a solution with high benefit to extend the working life of caustic liquid. This is what makes filtration for caustic liquid absolutely necessary.

Bottle Washing Machine

Bottle washing machine

The use of the BOLLFILTER automatic Type 6.64 for filtering the main caustic solution was a measure defined for reducing the contamination level in the bottle washing machine.

Bottle washing machine

The company KRONES was looking for a solution to efficiently reduce the contamination level in the main caustic and thereby protect subsequent parts, such as spraying nozzles of the cleanin g caustic, from blocking by dirt and suspended matter particles.