Metso Full portfolio Mixer conditioners
Ash conditioners

Mixer conditioners

Total fly ash conditioning system

The Metso mixer / conditioner / unloader effectively transforms dry fly ash into uniformly wetted ash, resulting in a completely controlled, efficient and dust-free operation with capacities ranging from 1 to 400 tons per hour. Larger units are available upon request.

Why Metso?

Safety & reliability

Superior safety with fewer repairs and maintenance, lower noise, less spillage and a cleaner environment.

Lower environmental impact

Retrofits and refurbishments significantly reduce raw material consumption when compared with the procurement of new equipment.

OEM quality, warranty & support

Unmatched parts quality with standard factory warranty and dedicated local support.

Ash conditioners benefits

  • Built to last with a heavy duty container, mixing chamber and an entire unit enclosed to the discharge chute for long, dust-free, worry-free service.
  • Easy maintenance.
  • Paddle design ensures maximum wetting of dry material.
  • Reduced horsepower and low wear rates due to very low RPM.
  • Easy installation with each complete unit ready for mounting on a prepared foundation.
Ash conditioner
How it works

Water pressure, precisely controlled with an external control valve, is sprayed into the ash as it is moved by the mixing paddles. The water is sprayed through specially designed V-jet and hollow cone nozzles that ensure a fine spray and maximum spread and distribution.

Inclined mixing paddle blades, arranged in a helix on a pair of counter-rotating shafts, move material from the bottom of the chamber up each side and force the ash down between the shafts. This action “kneads” the fly ash for maximum water exposure. The action of the mixing paddles moves the wetted ash from the inlet area to the outlet end of the chamber. The uniformly wet material is discharged through a chute at the bottom of the chamber.

Ash conditioners features

  • Rugged construction
  • Precise water control
  • Regulated material feed
  • Uniform, consistent forced wetting
  • Continuous material flow
  • Totally enclosed mechanism
  • Single control

Ash conditioners applications

  • Fly ash
  • FGD conditioning
  • Sludge cake conditioning
  • Dust wetting

Using a design has been successfully conditioning coal, bark and refuse fly ash in Europe for more than 40 years, engineers have produced a mixer conditioner/unloader that is years ahead of conventional drum-type unloaders.

Applicable industries:

  • Utilities
  • Pulp & paper mills
  • Refuse plants


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