Mobile High-performance De-dusting during Railcar Unloading

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Model Tests on Dust Capture Hoods

The flow conditions of emissions evolving on dumping different materials had to be investigated precisely to ensure optimal configuration and layout of the stationary dust capture hoods, considering achievable potentials for energy savings. Thyssenkrupp Steel Europe entrusted the company Kessler + Luch with this task. At its laboratory, this company simulated bunkers in different size as well as a wagon on a 1:10 scale and determined the optimal basic data for the stationary dust capture hoods through various test series. Final operating tests were run on the bunkers before implementing these studies into practice.

Gallery

Gallery with 9 images

3D-Model and Simulation

Thyssenkrupp Uhde Engineering Services elaborated a 3D-model (see Fig. 4) for the existing elevated railway bunker unit including all interfering edges, e.g. skip hoists, piping routes as well as clearance gauges of the track facilities. The main supporting structure of the plant was also integrated into this model to determine the span width of the suction pipe racks and runway rails for the mobile suction cars via the defined load introduction points.

In the basic design of the suction cars and dust collecting ducts, the company attached great importance to an optimal fluidic design of the individual components. The model was completed when the basic data for the stationary dust capture hoods derived from laboratory-scale tests had been determined and fixed. By the aid of this model, Thyssenkrupp Uhde Engineering Services developed a tailored solution concept for capturing fine dust emissions evolving during wagon unloading.

Detailed Engineering

The subsequent Detail Engineering, utilizing efficient 3D-engineering tools to

• avoid collision points,

• optimise fabrication sequences, and

• reduce engineering hours

was completed within tree months for the overall plant complex.

By implementing an adapted engineering in modular construction style, it was managed to optimise construction and installation as well as to erect this plant safely during running operation, see Figs. 5 to 8.

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