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Reduction of fume emissions in a steel foundry

This innovative project has improved air quality in a steel foundry by solving the accumulation of fumes in work areas through a comprehensive ventilation solution supported by CFD simulations and gas filtration.

Technical Data

Parameter

Value

Sector

Metallurgy

Location

Spain

Need / Problem

Pollution and poor air quality in steel foundry and casting hall

Solution

Integral ventilation and gas filtration

Products

CFD / Ventilation / Bag filter

Restultados

Good air quality

Actual emissions < 2 mg/Nm3

Customer Need / Challenge

Our client is engaged in the manufacture and commercialization of cast steel parts. 

In the foundry and moulding facility, the production process generates a large amount of fumes, which requires the use of respiratory PPE among other protective equipment. Even with localized extraction systems and a ventilation system in place, the environment in the facility remained uncomfortable and compromised operational efficiency.

Implemented Solution

Due to the complexity of defining and sizing the best solution, the solution is simulated with a computational fluid dynamics software (CFD), which confirms and defines in more detail the best solution to the problem.

Due to the fact that the fumes generated throughout the building are very dispersed and focused aspirations are not a viable option for the client’s production process, it was decided to solve the problem by ventilating the building. Axial fans and air deflectors are strategically installed on the roof of the facility to generate an airstream along the ceiling. The gases are fully extracted through a new canopy and directed to a bag filter that will capture and filter the particles contained in the fumes.

Results and Performance

  • Air quality in the foundry and moulding facility:
    The air quality has been greatly improved, the comfort at the workplace and the visibility confirm this. In addition, contamination of the adjacent halls is avoided.
  • Particulate emissions:
    Stack emissions are well within the guaranteed limits of <10 mg/nm3. The latest official measurements show emissions <2 mg/Nm3.

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