Only 17 days to start up and commission the new 80-t converter at Aperam - Brazil

Posted on 18 January 2016

The contract included the engineering, supply, advisory services for erection and commissioning of the converter vessel, suspension system, trunnion ring and slag shields.

On December 27th, 2015 the new 80-t MRP-L converter produced its first heat of liquid steel, just 12 months after the signing of the contract.

The following features were key to this success:
? Change in trunnion design from bolted to welded type: this freed up some space to increase the inside volume of the converter from 56 m3 to 64m3;
? Introduction of a flange connection in the barrel part of the vessel shell in order to avoid any site welding, simplify transportation, and reduce the erection time by approx. 50%;
? Suspension system based on vertical and horizontal lamella-type elements. The standard design of the vertical elements was upgraded, and the industrially proven horizontal DANI-ELLA? elements (which are successfully in operation on a 350-t converter since May 2014) were applied to incorporate a new Danieli solution. This combination creates a new state-of-the-art maintenance-free suspension system.

A well-planned pre-assembly and erection procedure reduced the total project time and the site activities to 17 days from the start of erection. This consolidated the collaboration between the teams of APERAM Timoteo and DANIELI Linz Technology.

Source: Danieli news & events

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