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Stationary drying plants
Proven technology, creative solutions, flexible production! Small or quite high capacities; with or without dust separation, continuous-mixed-flow or circulating batch driers; gas, oil, steam or special heating – STELA is the right partner for everything! We develop the suitable solution also for extraordinary space conditions! There are more than 2000 stationary STELA driers all over the world. The experience was integrated into our current new developments like the complete automation of the drying process with EQtronic, providing enormous energy and cost savings, or the advanced technology of energy recovery.
Advantages at first sight:
• use of highest-quality materials
• drier made of special aluminium alloy
• long operating life
• no upper limit of capacity
• optimum energy saving by means of circulating air and heat recovery
• sophisticated air duct sytem, highest possible air saturation
• high efficiency
• flexible modular design
• dust separation according to the latest state of the art
• powerful fan and air heater technology from our own production
• optimum utilization through continuous operation
• constant product moisture by modern discharge technology
• electrical and control engineering, from our own company according to the latest state of electrotechnical regulations
• simple and safe operation by PLC
• suitable for installation inside and outside
• one and multiple column driers, with split mode of operation on request
• exclusively with STELA also mobile or displaceable high energy saving by EQtronic
Constructive design
For the design of your drying plant, there are numerous variants, which are assembled individually. According to your wishes, you will receive an optimal design for your application with the suitable components.
The following examples will show you some possibilities which can be realized.
Design with centro separator
The free flowing product is fed into the store tank (1), runs due to gravity through the drying (2) and cooling elements (3) until it is discharged in batches by the discharge device (4) into the discharge hopper (5). Burner (6) and air heater (7) – direct or indirect heating are optionally possible - heat up fresh air. The exhaust air of the cooling elements is mixed with this air. Thus the whole heat stored in the product is led back to the drying process (energy saving by heat recovery). The large-scale hot (8) and exhaust air caps (9) guarantee an optimum air and heat distribution in the drier column. The hot air flows through the product pile, absorbes moisture and is sucked off from the exhaust air cap by the exhaust fan(10).The dust-laden exhaust air is cleaned in the centro separator (11) and carried off into the open air. The separated dust gets through pipes to the dust bin or to a bagging device.
Design with circulating air
Not only the exhaust air from the cooling zone, but also the exhaust air (and so the contained energy) from the lower drier elements is recovered by means of a circulating air fan (10). A pneumatic discharge slide (4) brings about short discharge cycles. By means of pneumatic air flaps, which are installed blow-out-sided at the fans (10), the air flow is interrupted during this short discharge cycle. The share of the total air volume that can be recovered as so-called circulating air depends on the initial moisture of the product which is expected on an average and on the parameters of the ambient air. So the plants are calculated and designed depending on the site –
e. g. Central Europe, Southern Europe or the Tropics.
A drier in Central Germany, which is designed mainly for maize drying with an average initial moisture of 35 %, requires another air distribution than e. g. a drier in Southern Hungary, where average initial moistures of 22 % are expected.
• use of highest-quality materials
• drier made of special aluminium alloy
• long operating life
• no upper limit of capacity
• optimum energy saving by means of circulating air and heat recovery
• sophisticated air duct sytem, highest possible air saturation
• high efficiency
• flexible modular design
• dust separation according to the latest state of the art
• powerful fan and air heater technology from our own production
• optimum utilization through continuous operation
• constant product moisture by modern discharge technology
• electrical and control engineering, from our own company according to the latest state of electrotechnical regulations
• simple and safe operation by PLC
• suitable for installation inside and outside
• one and multiple column driers, with split mode of operation on request
• exclusively with STELA also mobile or displaceable high energy saving by EQtronic
Constructive design
For the design of your drying plant, there are numerous variants, which are assembled individually. According to your wishes, you will receive an optimal design for your application with the suitable components.
The following examples will show you some possibilities which can be realized.
Design with centro separator
The free flowing product is fed into the store tank (1), runs due to gravity through the drying (2) and cooling elements (3) until it is discharged in batches by the discharge device (4) into the discharge hopper (5). Burner (6) and air heater (7) – direct or indirect heating are optionally possible - heat up fresh air. The exhaust air of the cooling elements is mixed with this air. Thus the whole heat stored in the product is led back to the drying process (energy saving by heat recovery). The large-scale hot (8) and exhaust air caps (9) guarantee an optimum air and heat distribution in the drier column. The hot air flows through the product pile, absorbes moisture and is sucked off from the exhaust air cap by the exhaust fan(10).The dust-laden exhaust air is cleaned in the centro separator (11) and carried off into the open air. The separated dust gets through pipes to the dust bin or to a bagging device.
Design with circulating air
Not only the exhaust air from the cooling zone, but also the exhaust air (and so the contained energy) from the lower drier elements is recovered by means of a circulating air fan (10). A pneumatic discharge slide (4) brings about short discharge cycles. By means of pneumatic air flaps, which are installed blow-out-sided at the fans (10), the air flow is interrupted during this short discharge cycle. The share of the total air volume that can be recovered as so-called circulating air depends on the initial moisture of the product which is expected on an average and on the parameters of the ambient air. So the plants are calculated and designed depending on the site –
e. g. Central Europe, Southern Europe or the Tropics.
A drier in Central Germany, which is designed mainly for maize drying with an average initial moisture of 35 %, requires another air distribution than e. g. a drier in Southern Hungary, where average initial moistures of 22 % are expected.
STELA EQtronic – the energy-saving new development
In connection with the automatic moisture control 450/2, the EQtronic is currently the best complete automation of a drying process on the market! Energy saving is the motivation for the new development of the EQtronic. Just as the moisture of the product to be dried has to be controlled to achieve a throughput as efficient as possible, the consumption of heating and electrical energy has to be considered to achieve cost savings.
Energy recovery
A drying system with energy recovery can save heating energy up to 20 %! This capacity is achieved by use of additional circulating air fans, which increase specificly the recovered volume of air and heat. This technology is applied with all STELA continuous-mixed-flow driers, whether mobile or stationary.
STELA Laxhuber GmbH | Öttingerstr. 2 | D-84323 Massing | T +(49) 8724/899-0 | F +(49) 8724/899-80
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