From the treatment of ore to the refining and
smelting of metals Howden supplies equipment to meet the demanding requirements
of the metals and mineral processing industries.
Howden products - fans,
blowers and turbo-compressors, are found in all sectors from the mine site to
smelters and refining plants. Wherever the plant is located Howden provides
reliable and efficient equipment.
Our equipment is used in many applications. In initial ore treatment
fans are used for lixiviation in ore leaching to increase airflows, and fans and
blowers are used to provide air for flotation cells.
Smelting of concentrated base metal ores (copper, lead, zinc) is a process in
which fans and the high efficiency Donkin turbo compressors provide air for the
reactions. Centrifugal fans exhaust the gases from the converters and
The sulphur dioxide gas produced from smelters is now
increasingly captured and converted to sulphuric acid; turbo-compressors are
also key components in sulphuric acid production.
We are major suppliers of fans for alumina refineries and aluminium smelters.
Removal of the plant fumes is essential for environmental control.
have supplied over 40 of our Donkin turbo-compressors for minerals/metal
refining applications and many high pressure fans and blowers.
The ExVel(R) range from Howden Turbo Fans are used in MVC evaporators and evaporative crystallisers to concentrate leachates and metal salts in hydrometallurgical refining.