Cogne Acciai Speciali – Fume Extraction and Dedusting System Upgrade

LOCATION :
Aosta, Italy

CLIENT :
COMECA Tecnologie S.p.A. – Cogne Acciai Speciali (Aosta)

PROCESS DESIGN :
Comeca S.p.A.

YEAR & SECTOR :
2018 – 2023 | INDUSTRIAL – STEEL INDUSTRY

CONTRACTOR :
Comeca S.p.A.

PROJECT OVERVIEW :
The project involved a comprehensive upgrade of the fume extraction and dedusting systems serving the UHP–AOD furnace area.

The first phase (2018–2019) included the design and installation of a new secondary extraction hood, replacing the existing one, along with a new duct connecting it to the existing bag filter. The system was engineered with provisions for future expansion.

The second phase (2022–2023) focused on the implementation of a new primary fume extraction system, featuring:

  • Duplication of the existing bag filter unit
  • New primary extraction ductwork for high- and medium-temperature fumes, complete with dedicated steel support structures
  • A pre-separation unit with two vertical cyclones and a dust collection hopper
  • A quenching tower with an underlying dust chamber constructed in steel refractory-lined 

This upgrade significantly enhanced environmental performance, operational reliability, and system scalability.

SCL SCOPE OF WORK :

  • SCL was responsible for the detailed executive and construction design of all plant steel structures, as well as providing installation support during on-site assembly.

Skills

Posted on

14 May 2026