Acid mist capture in EW cells
Acid mist control hoods for electrowinning
We manufacture and repair hoods that capture and channel the acid mist generated during copper electrowinning. Our design is meant to reduce water and energy use, clogging and maintenance compared with conventional hoods.
A solution to the challenges of acid mist
Acid mist generated during electrowinning affects conditions inside the cellhouse and can contribute to corrosion of equipment and facilities. Conventional hoods can suffer from sulfate buildup and structural damage caused by poor fit.
At Interplak, we develop shape-based capture hoods whose geometry channels the aerosol to a single extraction point, designed to reduce clogging and washing needs.
What services do we offer for acid mist control?
Hood manufacturing
Hoods designed to capture and channel acid mist in electrowinning cellhouses.
Repair and replacement
Restoration or replacement of existing hoods, based on the operation's needs.
Engineering and technical support
Adaptation to the cellhouse layout and operating conditions, with installation support and performance verification, depending on the project scope.
Results measured at a mining operation
The results below come from a per-hood comparison between a conventional hood and an Interplak hood at a large-scale copper mining operation.
Automatic wash water
Conventional
69,000 L/month
Interplak
580 L/month
Manual wash water
Conventional
1,000 L/month
Interplak
0 L/month
Power consumption
Conventional
1,550 kWh
Interplak
780 kWh
Required extraction airflow
Conventional
1,200 m³/h
Interplak
600 m³/h
Automatic wash frequency
Conventional
4 times per day
Interplak
Every 7 days, for 60 seconds
Results for the assessed operation. Values may vary depending on the conditions of each installation.
Diagram of the complete extraction circuit
The acid mist control system includes the hoods, collector ducts, scrubbing equipment, fans and stack. Its performance depends on the entire circuit working properly.
Benefits for your operation
Health, safety and environment
Helps control acid mist and reduces the manual washing tasks that expose workers.
Operational efficiency
Lower water and energy use, plus lower extraction airflow than the conventional hood evaluated.
Less maintenance
With no chambers or small openings between them, the design is meant to reduce sulfate clogging and cleaning.
Compatible with existing operations
The top cover geometry allows the existing harvesting setup to stay in place, depending on site conditions.
Applications
- Copper electrowinning cellhouses
- Environmental and occupational-health compliance projects
- Operations aiming to increase current density
Need better acid mist control in your EW cellhouse?
Tell us how your facility operates and what you need most. Our technical team will assess your project requirements.