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Datteln 4, Nordrhein-Westfalen
Cooling Tower

Customer
 ARGE Ingenieurbau Kühlturm Datteln
Crane operation
 10/2007 till 09/2009
Kühlturm in Datteln mit unserem WT 300 e.tronic Spezialausführung K
Selbstabbauender Ausleger am WT 300 e.tronic in der Kühlturm-Ausführung
Selbstabbauender Ausleger am WT 300 e.tronic Spezialausführung K
Großbaustelle am Kraftwerk Datteln mit unserem WT 300 e.tronic Spezialausführung K

WT 300 e.tronic special type cooling tower
including self-dismantling jib

Tower height 62.1–195.1 m
Radius 70 / 60 m
Foundation
 FUA 24
Special features
 - self-dismantling jib for disassembly in mid-air
- secured by special stays at 110 and 155 m
The power plant
The new power plant Datteln 4 is one of the most advanced hard coal-fired power stations worldwide. With a net efficiency of more than 45 per cent and a gross capacity of 1,100 megawatts, it is intended to replace the powerplant units 1 to 3. Designed for fast load changes, the plant is going to mostly produce traction current and besides will provide district heating to about 100,000 homes.

The natural draft cooling tower was placed on 36 pillars that are based on a foundation ring with driven concrete piles. Optimised for stability as well as resonant frequency, the wall slims down from 1 m at the bottom to 19 cm at a height of 178 m on the top.
The task
As the cooling tower has to pull waste heat upwards without fans, based on the natural chimney effect, the tower has a height requirement to work effectively. Additionally, cleaned exhaust is discharged with the rising warm air. Because of this, the tower has to be considerably higher than usual. The necessary height of 178 m has to be exceeded by the crane by nearly 20 m.

The WT 300 e.tronic has to grow with the cooling tower and secured by stays without putting stress on the tower walls. Furthermore, the dismantling of the crane at the end of its assignment has to take place without the help of a mobile crane or helicopter.
The implementation
The WT 300 e.tronic special type cooling tower was first assembled at a tower height of 62.1 m and then climbed to 195.1 m. Meanwhile, the jib was reduced to 60 m from the original 70 m as the slimming radius of the tower didn't require the initial radius any longer. For this and for the dismantling a special tool was used. The jib elements were already equipped with the required adaptions at the factory.
More info
- Description of the power plant by the operator Uniper
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