FKS ST stabilization filters

The main originators of non-biological turbidity are proteins and polyphenols or their precursors (particles from which turbidity gradually forms due to external conditions).
The colloidal stabilization of beer is a process by which the risk of the early formation of turbidity is eliminated.

If the beer is not stabilized, it will only last a few weeks. However, today’s retailers require beer to remain clear without becoming turbid for months.

Stabilization filtration equipment (FKS 100ST – FKS 600ST) ensures the colloidal shelf-life of beer while retaining its characteristic properties (color, lightness and taste, bitterness or sweetness).

Benefits:

Colloidal stabilization significantly increases the commercial shelf-life of the beer. Without it, it is virtually impossible for bottled beer to have a shelf-life longer than 6 to 8 weeks
Stabilization filters are fitted with vertical filter elements – candles of the same design as the kieselguhr filters, which guarantee high quality and reliability of filtration. However, depending on the parameters of the stabilizing means, smaller slits are sometimes required when winding the candle, which is taken into account in their design requirements
FKS ST stabilization filters are especially suitable for larger breweries, where they can repeatedly use regenerable polyamide sorbents (PVPP – e.g. Polyclar, Divergan). In the case, the stabilizing filters are complemented with a regeneration station for the stabilization agents, where the stabilization agents are cleaned by rinsing with regeneration solutions (NaOH, HNO3, water). This improves the return on investment of the stabilization filter.

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Description of the equipment
The main parts of the stabilizer filter are:
- filter body
- dosing equipment
- retention tank
- connecting pipe with the main pump and armature
- electrical equipment with control panel
- measuring and regulation system
- regeneration station (for regeneration of used stabilizers)
- DESA catch filter
Automated functions
FKS ST stabilization equipment is equipped with automated control and regulation functions as standard:
- filter flow and dosing pump;
- control of the pressure ratios in the filter (input/output, differential pressure);
- Heating the stabilizer suspension (PVPP) prior to the start of the filter cycle;
- switching the CIRCULATION - FILTRATION phases (depending on the primary filter phases);
- concentration of chemical solutions (for regeneration);
- temperature of chemical solutions and rinsing water.
Do you require a higher degree of automation? We can arrange it for you at your request.

Technical data

The parameters of the stabilization filter line are adapted based on the primary filtration using the FKS-type filters. A variant with one PVPP regeneration cycle is usually chosen for 2 primary filtration cycles.

In order to design an optimal solution for you, we need to know your requirements for cycle capacity (hl) and the amount of PVPP needed for continuous dosing (g/hl).

FKS primary filtration filter - design		060	100	200	300	400	600
Assigned FKS ST-type filter		040	060	100	150	200	300
Control and regulation	Using PLC with a touch screen panel and switches
Basic filtration surface	m2	4	6	10	15	20	30
Filter body volume	liters	225	550	1060	1650	2450	2900
Active sludge volume	liters	270	400	680	1020	1360	2040
Maximum PVPP filling	kg	41.5	61.5	105	157	210	314
Capacity of the cycle at KD < 50 g/hl	hl	800	1200	2000	3000	4000	6000
Working pressure (max)	kPa	600	600	600	600	600	600
Volume of tank for suspension preparation (PVPP)	liters	600	800	1200	1600	2200	3200
Volume of the retention tank	liters	400	650	1200	2000	2500	3600
Filter flow (beer)	hl/h	30 - 50	50 - 80	100 - 160	150 - 240	200 -320	300 - 500
Dimensions of the connection pipe	DN	40	50	65	65	80	100
Volume of regeneration solution tanks	liters	600	600	1500	2100	3500	3500
Number of regeneration solution tanks	pc	3	3	3	3	3	3

Equipment diagram

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FKS ST stabilization filters

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