Spiral Classifiers
Tank designs for optimal performance
The Metso Spiral Classifiers are designed to provide the most effective pool area and overflow velocity requirements. By combining the proper submergence of the spiral with one of the tank designs a choice of 63 combinations is possible in Straight, Modified or Full flare tank designs. The proper combination of pool depth, area and spiral construction is important to secure a controlled turbulence in the slurry flow for accurate size separation
Typical Installations:
The wet classifier may perform several applications:
Separation of fine particles and liquid from coarse particles
Separation of light particles from heavy particles
Separation of the particles into a number of products graded according to size
Separation of liquid from solid particles
Optimal particle size range 800 to 75 microns

Spiral classifiers:
Single Spiral Range from 300 mm to 2 200 mm
Duplex Spiral Models 1 500 mm and 2 200 mm

Holo-Flite
Metso Minerals' Holo-Flite® Thermal Processor is an indirect heat exchanger for heating, cooling or drying bulk solids, filter cakes, pastes or sludge.
It is a proven and efficient thermal processor with over 3 000 installations world wide.
Applications
Chemical processing
Cooling: calcium carbonate, caustic flakes, iron oxide, sodium tripolyphosphate.
Drying: alumina, carbon black, sodium, chloride, plastics.
Heating:pesticiedes, potassium chloride.

Industrial power applications
Heating: limestone filler, petroleum coke.
Drying: volume reduction of hazardous and non-hazardous wastes.
Cooling: incinerator ash, fluidized bed boiler ash and limestone, coke from a calciner.

Mineral processing & coal drying
Drying: molybdenum and fine coal. Food processing and environmental
Many one of a kind heating and drying application.

Holo-Flite® Thermal Processors are available as Single, Double or Quadruple units with flight diameters from 175 to 900 mm.

Conventional Thickeners & Clarifiers
Metso Conventional Thickeners and Clarifiers are designed for continuous 24 hour per day operation. Thickeners give effective solids settling, clarifiers give clear liquid overflows. Units are supplied in two basic configurations: bridge or centre pier mounted.

Drive mechanisms, rake systems and feed systems are available to suit tanks from 5 m to 75 m in diameter.

Typical installations:
Chemical and industrial mineral processing industries - Ore processing industries.

Inclined Plate Settlers
The two basic criteria for gravity settling equipment are good clarity of the overflow liquid and maximum density of the underflow solids discharge. The area needed to clarify a suspension is often greater than that needed for thickening. This means that in a cylindrical thickening tank, the lower section with rakes and drive mechanism can be oversized.
The Metso lamella principle uses several parallel inclined plates to maximise the available area for any available floor area. In this way, the size and cost of the gravity settler can be minimised by matching the clarifying and thickening requirements more closely.

Typical installations:
Sand & Gravel, Zinc Concentrate, Soil Treatment, Iron Ore, Contaminated Soil, Coal Slurry, Chemical Process Industry, FGD, Oil Sand/Water separation, Limestone, Salt Crystal separation

Spiral Dewaterers
The Metso Spiral Dewaterer consists basically of an open trough with arrangements for collection of the products.
The inlet flow is evenly spread out by means of a feed distributor. Coarse material settles and is continuously removed by means of the transport spiral. The material will be dewatered by drainage in the upper part of the spiral before discharge.

The discharge launder for the dewatered material is easily adjusted between two positions, allowing alternative discharge into two separate bins. The clarified water passes a V-notched overflow weir which is adjusted at start-up to give even distribution of flow over the full width of the trough. A baffle plate will prevent floating materials from being drawn by the clarified water discharge.

Typical installations:
Mill Scale treatment in Continuous Casting, Hot Rolling and Scarfing

Vertical Plate Pressure Filter VPA
Environmental awareness has been the major driving force in the rapid development of the filtration and dewatering technology. Also, increasing energy and personnel costs have made tougher demands on efficiency and automation of processes.

This development requires reliable automatic operation and simple maintenance from heavy industry.The Metso Vertical Plate Pressure Filter VPA has been developed to meet these requirements.

The features and benefits of the filter are:
Light weight construction with machined polypropylene filter chambers.
Compact design with pulling hydraulic cylinders for reduced space requirement.
Filter Cloth change, a one minute operation.
Available in several pressure ratings for different applications.
Few moving parts for low maintenance and high availability.
"Smart" PLC-control system for fully automatic filter operation
Load cell weighing system integrated to the PLC, for process control of the filter performance.

Typical installations:
Filtration of metallic minerals, industrial minerals, coal and tailings.

Tube Presses
The Metso Tube Press is a fully automatic membrane type cylinder press, hydraulically operated at pressures up to 100 and 400 bar according to the model. This equipment is designed to filter extremely fine particle slurries, producing a filter cake of very low moisture content in comparison with other forms of commercially available mechanical dewatering equipment.

Typical applications:
Coal fines and shales - Calcium carbonate precipitates - Gypsum residues - China clay - Iron oxide fume - Quarry clay slimes - Seawater magnesia - Lead chromate retrieval - Zeolites - Furnace/Converter - Ferrites - Jarosite - Titanium Dioxide - Magnesite - Dyestuffs/Pigments - Para-goethite - Metal Sulphides - BOS sludge - Oxalates - Molybdenum - Zinc concentrate - Tin concentrate - Gold concentrate - Nickel concentrate - Silica dioxide

Orion Series of Mining Duty Rubber Lined Slurry Pumps
The Metso Minerals MR & MM rubber and hard metal lined mining duty slurry pumps are designed to provide an economical solution to medium abrasive solids, lower solids concentrations and medium head applications.
The M range pumps are the preferred choice for duties such as general in-plant transfer pumps. Flowrates to 1 500m3/hr (6 600 usgpm).  Heads up to 100 m - 330 ft

Orion Series of Heavy Duty Rubber Lined Slurry Pumps
The Metso Minerals HR & HM rubber and hard metal lined, heavy duty slurry pumps are designed for the toughest pumping applications.
The excellent hydraulic design guarantees maximum efficiency throughout the life of the generously proportioned wear parts. Flowrates to 1 500 m3/hr (6 000 usgpm).  Heads up to 100 m - 330 ft

The X Series of Extra Heavy Duty Metal Slurry Pumps XR
The Metso Minerals XR & XM rubber and hard metal lined, extra heavy duty large size slurry pumps are designed for the most arduos pumping applications.

The rugged wet end is designed with extra thick metal sections at known points of wear and the high aspect ratio impeller ensures excellent performance with long life. Flowrates to 10 000 m3/hr (44 000 usgpm).  Heads up to 75 m (250 ft)

Typical applications Mining and mineral processing - Extra heavy duty highly abrasive slurries - SAG and AG mill discharge recirculation duties - Cyclone feed - Mine refuse and tailings - Industrial processing - Mill discharge - Coal and power plant ash - Sand and gravel - Medium duty abrasive slurries - In plant slurry transfer pumps

The Sala Series of Vertical Sump Pumps
All Metso Minerals Sump Pumps are designed specifically for abrasive slurries and feature robust design with ease of maintenance.

The VS sump pump range is one of the strongest, toughest and most reliable pumps on the market. It is for this reason that the range is preferred throughout the world by most heavy industries.
Flowrates to 1 500 m3/h (6 600 usgpm).
Heads up to 40 m (130 ft)

The Sala Series of Vertical Froth Pumps
The Metso Minerals VF froth pump has been designed to increase the pumpability of frothy slurries. The principle of operation is partly similar to that of hydrocyclone separation.

Air is separated from the slurry in a vortex created by the impeller rotation and the tangential inlet to the pumps conical sump. This results in more efficient pumping and smooth operation, free from pulsations.
Flow rates to 1 500 m3/h (6 000 usgpm).
Heads up to 20 m (70 ft)

The Sala Series of Vertical Tank Pumps
Metso Minerals VT vertical tank pumps are designed for abrasive slurry service and feature simple maintenance and robust construction.

The ingenious design of the pump makes it easy to install and exceptionally service friendly.
The open sump and vertical inlet prevents air blocking and gives a smooth operation.
Flowrates to 600 m3/h (2 640 usgpm).
Heads up to 30 m (100 ft)