KHS has announced that it is setting standards in regenerative beer stabilization with PVPP with its ECOSTAB B technology, which is based on the tried-and-tested KHS ClearLine frame design.
Image: The ECOSTAB B for batch PVPP stabilization is a compact system from KHS. Photo: Courtesy of KHS GmbH.
All of the relevant components, such as pumps, control cabinet and stabilizing columns, are on one rack, with only the PVPP storage vessel in a separate unit. The modular design permits a flexible layout, with the low total system weight suitable for platform installation.
The ECOSTAB B has an output of 75 to 240 hectoliters of beer per hour. Thanks to its modular design the performance or capacity can later be extended at any time. The machinery is also distinguished by its low cost of investment.
Furthermore, compared to standard systems the ECOSTAB B consumes up to 70% less PVPP.
The high flux of up to 45 hectoliters per square meter through the filter strainers results in a very small system volume which in turn yields further benefits as regards water and concentrate savings, reduced blending amounts and setup times. The technological values demanded by the market, such as an oxygen pickup of under 10 ppb and PVPP losses of below 0.5%, are easily achieved with the ECOSTAB B.
Blocked filter elements a thing of the past
During production the system doses the pre-defined, recipe-controlled quantity of PVPP proportionally into the beer flow. The PVPP is deposited on the inside of the filter elements; the beer flows through these, is stabilized and fed to the downstream machine.
Following production the PVPP is extracted and fed to the storage vessel and the filter elements are cleaned by rotating spray heads. Blockages on the filter surfaces are therefore practically eliminated.
Like the ECOSTAB B the continuous ECOSTAB C variant is also based on the tried-and-tested KHS ClearLine frame design. Three stabilizing modules form the heart of the system, with two always in production and one in regeneration mode. With a capacity range of 150 to 600 hectoliters per hour in continuous stabilization operation the ECOSTAB C series meets all market requirements.
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During regenerative stabilization with PVPP the beer is stabilized in a system installed downstream of the clarifying filtration apparatus. This construction prevents the PVPP from collecting in the precoat filter vessel as a further solid – as is the case in non-regenerative stabilization – for the vessel can only absorb a certain amount of solids. In the regenerative variant it is thus not necessary to temporarily halt filtration once this maximum has been reached.
As less filter media has to be disposed of, the cost of using regenerative PVPP is also much lower than for setups which apply non-regenerative PVPP. In addition, the service life of the diatomaceous earth filter is significantly lengthened, with a return on investment of well under two years not unusual.
Source: Company Press Release