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Celsius Supplies Calcium Oxide High-Temperature Cooler to Middle East

Celsius has designed and supplied a high-temperature cooler to a chemical factory in the Middle East. This screw heat exchanger has been installed as a cooler at a calcium oxide plant.

At the beginning of July 2010, engineer Martijn van den Hil, process engineer at Celsius, spent five days at the plant in the desert for an SAT (Site Acceptance Test).

With its length of 10 meters and width of 2 meters this machine is one of Celsius’ larger models. This machine of 16,500 kg has been installed at a height of 40 meters. At this height the cooler is fed by an elevator. It raises the product from the multiple-hearth furnace to the cooler, and the screw heat exchanger cools 4000 kg/hr of calcium oxide from 600 to 90°C. The necessary cooling water is cooled using a cooling tower. As the plant is situated in the desert, and because of the extreme conditions, the temperature of the cooling water can increase to 50°C.

During the cooling process 640 kw/hr of energy is discharged through a cooling water-flow of 100 cu l/hr with an operating pressure of 5 bars. The cooling water flows through the trough, the screw shafts, and the blades of the screw heat exchanger. Because of the abrasive nature of calcium oxide, an abrasion-resistant material has been welded onto the screws of the cooler. The machine was specially designed and produced by Celsius to achieve optimal results under heavy industrial conditions.

The installation now functions according to the specifications and it is possible that a second production line will be taken into serious consideration by the end user.

For more information, visit www.celsius.nl.

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