Pressure filtration

Tube press filter

Achieve a higher degree of solid liquid separation with the Metso Outotec Tube press filter

VARIABLE CHAMBER SERVICE SUPPORT

FLEXIBILITYFULLY AUTOMATIC

Ease of maintenanceOnly a few moving parts

Superior performanceon (ultra) fine materials

Energy efficiencyLow installed power

High capacityUp to 100 bar filtration pressure

High pressure filtration

Principle of operation

Filtration takes place between two concentric cylinders. The outer cylinder is the casing, and the inner, the candle. The process slurry is pumped into the annular space between the filter media and the bladder.

The pressing medium, being water, is then pumped between the bladder and the casing putting the slurry under pressure and causing filtration to take place. When filtration is complete the pressing water is withdrawn from the Tube press using vacuum to retract the bladder against the casing.

The candle is lowered to the discharge position and the cake is discharged by a back-blow air pulse, causing the cake to drop down under gravity. When completed the candle closes back into the casing for the next cycle.

Cake wash and/or air purge can be incorporated in the cycle. At the completion of the filtration, wash fluid or air is pumped between the cake and the bladder and forced through the cake by additional pressing steps.

Metso Outotec Tube press filterThe Tube press is a cylindrical high pressure filter,

with an operating pressure up to 100 bar. The

use of high pressure enables a higher degree of

separation of the solid & liquid phase. The finer the

particles are, the more energy has to be introduced

to separate solids and liquids. Designed to be used

in demanding dewatering applications with ultra-

fine compressible materials, the Metso Outotec

Tube press is proven to produce dry cakes, even

from ultra fine particle slurries, with less energy.

Superior performance Porosity and cake moisture contents are significantly lower than those obtained with traditional pressure filters, consequently, filtrate recovery is high. Filtration is conducted at a pressure level where the cake is produced as a hard surface dry, lump solid. Cake handling is greatly simplified compared to traditional pressure filter cakes, which are typically paste-like and frequently surface wet.

When drying is the next stage the drying energy consumption is significantly reduced, or the dryer capacity increased.

Tube press filtration rates, in terms of dry solids per m2 are much higher than for either vacuum or traditional filter presses. This results both from the pressure dependence of filtration rates as well as the operational flexibility of the Tube press, allowing operation at the optimum filtration conditions. Solid loss to the filtrate is typically extremely low, maximizing filtrate quality for downstream process or direct disposal.

Benefits• Driest possible cake solids• Fully automatic operation• Exceptionally clear filtrate

Filtration Pressure - bar

Filtration time - min.

Filtr

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Filtration flo

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Metso Outotec Tube press

ApplicationsMetso Outotec Tube press

Auxiliary plant setup

Tube press plant with shared auxiliaries

Larger Tube press plants typically have a common drive system, creating the dewatering pressure for all tube presses in the plant.

The auxiliary plant consists of a low and high pressure pump, vacuum system and hydraulics. The sequenced operation of the tubes minimizes the required pump sizes.

A Tube press plant can be designed as expandible only requiring the installation of additional tubes to increase the plant capacity.

Compact set up: Booster system

The booster is an individual drive system directly connected with the Tube press. The installation is very compact combining one motor to generate the mechanical dewatering press force.

The Booster drive is an intelligent system for small to medium scale applications in industrial filtration and/or laboratory and pilot scale installations.

Supply lines for slurry feed, cake wash and air provide all tubes through central (circulation) headers.

Achieve a higher degree of separation using the Metso Outotec Tube press

Typical filter cake moisture contents (filtration pressure 100 BAR)

PGG / GCC 20-30% Seawater Magnesia 25-30%

Titanium dioxide 20% Lead chromate retrieval 22%

Silica dioxide 50% Furnace / Converter dust 15-20%

Starch 30% Para-goethite 27%

Kaolin (China clay) 15% Tin hydroxide 30%

Zeolites 40% Oxalates 14%

Magnesite 20-25% Ferrite 14%

Pigments / Dyes 20% Molybdenum fine 8-10%

Base metal residues 22% Metal concentrates 10-12%

Gypsum 14-18% Coal fines and shales 15-20%

Clay slimes 15-20%

Strong legacyMetso Outotec has nearly a century of experience in supplying filtration

equipment and services

Suitable for applications where/with:• Thermal drying is used• Low cake moisture is required• Filtrate with high value• (Ultra) fine particles• Difficult to dewater slurries• Traditional filtration fails• Cake handling is critical• Significant cake transport costs• Cake is disposed of to landfill• Future expansion needs

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Metso Outotec Tube press

Quick data

Tube presses can be operated either as single unit for smaller scale production

or as fully integrated plant with multiple tubes in a sequenced operation.

The unique Booster system incorporates fully optimized control of the complete

process, including feedback and statistical analysis of each press cycle.

Main benefits:

• Integrated filter optimizer with dynamic pressure control

• Full FAT for control system before shipment

• Simplified site installation

• Easy sequencing multi tube arrangement

For larger plants the filter hydraulics and pressing water stations are typically

centralized and the complete filter plant automation can be integrated in the

central plant control (DCS). The Tube presses operate in a sequenced way

approaching an almost continuous process.

Metso Outotec Tube press

Control system

Tube press 500-SC -100 -200

Number of chambers installed pcs 1 1

Filtration area m2 1.73 3.45

Chamber depths available (nominal) mm 40 40

Chamber volume liter 100 200

Maximum operating pressure bar 100

Feed arrangement Top center

Bladder material NR, option in PU

Filter cloth size mm Ø396 Ø396

Filter cloth size mm L = 1435 L = 2845

Filter cloth quantity pcs 1

Technical time min ~1

Slurry feed bar up to 16 up to 16

Low pressure bar up to 25 up to 25

High pressure bar up to 100 up to 100

Vacuum bar 0,5 to -1 0,5 to -1

Air purge bar up to 10 up to 10

Cake discharge air bar up to 2 Up to 2

Main dimensions, max. -100 -200

Height mm 2950 4400

Width mm Ø700

Weight (Tube press) kg 1910 2715

Min. crane capacity for installation kg 2000 3000

Min. crane capacity for maintenance kg 2000 3000

Heaviest component for installation, sub assembly item/kg 1770 2560

Heaviest component for maintenance, candle item/kg 565 870

Installed power service water (typical) pump plant

High pressure pump kW 110

High pressure pump motor fan kW 0.6

High pressure lubrication pump kW 4

High pressure oil cooling fan kW 0.186

High pressure booster pump kW 5.5

Low pressure pump kW 75

Hydraulic unit oil pump kW 37

Hydraulic unit cooling fan kW 0.37

Vacuum system vacuum pump kW 3.4

Vacuum system transfer pump kW 11

Installed power (typical) booster plant

Hydraulic unit oil pump kW / TP 11

Hydraulic unit cooling fan kW / P 1.1

Benefits Booster system

• Compact design

• Easy to install

• Optimized control

• Low installed power

Sustainable productivityMetso Outotec filtration solutions

meet the challenging requirements in a variety of process industries due

to their flexible operation, design and superior results

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Metso Outotec Tube press

TestingGet the most out of your Tube press

Metso Outotec Services

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At Metso Outotec we strive to deliver the best possible quality, availability, performance, and financial solutions for our beneficiation and dewatering customers. We are dedicated to the long-term journey throughout the equipment life cycle, creating win-win relationships for all stakeholders.

By combining the quality products and expertise, we possess the unique ability to partner with our end-users, provide services, reliability, innovation and results safely with sustainability at the core of all we do.

Spare and wear parts Rely on OEM experts

because not all parts are created equal.

Spare and wear parts built to perform.

Maintenance, shutdowns and repairsTrust those who know the equipment best to ensure that your production goals

are met.

Modernizations, upgrades and retrofitsWhether you aim to restore

equipment to its original condition or upgrade it

for increase performance, explore your options

Process optimization and connected services

By understanding your business needs, we

improve performance using technology and expertise

Lifecycle servicesTailored service packages delivering performance

outcomes. Your goals are our goals!

Metso Outotec’s filtration expertise is built on almost one hundred years of R&D and process knowledge, and is supported by the company’s globally unique Dewatering Technology Center (DTC) in Lappeenranta, Finland. The DTC plays a crucial role in Metso Outotec’s filtration solution innovations and acts as a hub for close university cooperation related to separation technology research. Metso Outotec has performed over 14,000 filtration tests and has delivered over 5,000 filters around the world.

Contact your Metso Outotec representative for further information on our available services

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Metso Outotec is a frontrunner in sustainable technologies, end-to-end solutions and services for the aggregates, minerals processing and metals refining industries globally. By improving our customers’ energy and water efficiency, increasing their productivity, and reducing environmental risks with our product and process expertise, we are the partner for positive change.

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Metso Outotec, Töölönlahdenkatu 2, 00100, Helsinki, Finlandtel. +358 20 484 100mogroup.com