Look for concealed moisture
Scrap stored outdoors, closed containers and materials with cavities can carry water into a furnace. An apparently dry surface does not establish that the whole item is dry. Reception arrangements should identify doubtful material and keep it separate until its condition is resolved.
Moulds, refractories, ladles and tools also need consideration. Their preparation and drying depend on the process and technical instructions. A practice from another installation should not become a universal recipe because materials, geometry and operating conditions can differ substantially.
Control the complete process route
Assessment should follow the metal from melting through transfer and casting. The building and storage arrangements need protection against rain ingress. Floors and routes should remain suitable for preventing spills, trips and contact between molten material and moisture.
Changes to cooling, cleaning or equipment layout can create a new contact path and need review before introduction. Control is not simply asking the furnace operator to pay attention: it must prevent unsuitable material reaching the process in the first place.
Separate people from the process
Where feasible, mechanisation and screens reduce proximity to molten metal. Access arrangements should reflect potential projections and the actual work. Maintenance near the process requires specific consideration of stored energy, temperature and movements that could expose the maintenance team.
Select protective clothing for the metal and expected exposure, together with necessary Eye and face protection. It does not replace explosion prevention or permit people to remain in a dangerous area. Fit, condition and use of the complete protective ensemble influence its effectiveness.
Prepare for abnormal conditions
Instructions should explain how to recognise unacceptable material or conditions and whom to inform. Training needs to be understandable to the whole workforce, including new and external workers. Supervision should verify that controls remain effective when production demands increase.
Suspected moisture, equipment deterioration or a release requires the installation’s specific response. Do not improvise water application or manoeuvres beside the bath. The Emergency plan should provide separation, communication and assistance without exposing additional people to the developing incident.
