Outokumpu Oyj

Outotec (finland) Oy

Outokumpu Mintec Oy

Valmet Paper Machinery Inc.

Valmet Oy

Lappeenrannan-lahden Teknillinen Yliopisto Lut

Outotec Oyj

Metso Outotec Finland Oy

Larox Oy

Bjarne Ekberg

Kari Vänttinen

Mika Illi

Luis Elvira Segura

Antti Häkkinen

Vaino Sailas

Juha Varis

Rolf Hindstrom

Antti Lehtinen

Ismo Juvonen

Markku Lampinen

Juan A Gallego Ju&aacute;rez

Laura Simola

Leena Tanttu

Jeffrey J Yost

Rolf Hindström

Olli H&ouml;gnabba

Kerry Johnson

Germ&aacute;n Rodriguez Corral

Edward Vroman

G&ouml;ran Norrg&aring;rd

German Rodriguez Corral

Juan A Juarez

Olli Högnabba

Goran Norrgangrd

Markku Kuosa

Goran Norrgard

Marjatta Louhi-Kultanen

Tuomas Koiranen

Timo Jauhiainen

David Eveland

Dave B Eveland

Veikko Varjonen

Kari Vanttinen

Olli Hognabba

An ultrasound crystallization device includes a tubular crystallization reactor () for conducting process fluid containing substance to be crystallized, an ultrasound source () for radiating ultrasound to the tubular crystallization reactor, and a temperature-control structure () for controlling the temperature of the process fluid with the aid of temperature-control fluid. The tubular crystallization reactor is shaped to conduct the process fluid to flow around the ultrasound source, and the temperature-control structure comprises a flow-guide structure () for guiding at least a part of the temperature-control fluid to flow around the ultrasound source. The flow-guide structure improves the accuracy of the temperature control of the process fluid and also the ability of the temperature control to react to changes.

Ultrasound crystallization device and an ultrasound crystallization system

A filter element for a filter apparatus includes at least one filter member and a frame member arranged to support the at least one filter member in such a manner that an internal cavity is formed. The filter member includes a permeable membrane layer which has a first filter surface for receiving a pressure and directed towards an internal cavity arranged in-side the filter element, and a second filter surface for receiving solid particles filtered from a feed. The filter member forms a capillary filter.

Filter element for a filter apparatus

A vacuum belt filter including a belt with a plurality of vacuum boxes, filter means being arranged to the vacuum boxes, drive means for moving the belt, and a suction station for creating an underpressure to the vacuum boxes at the suction station. In order to enable liquid-solid separation at low energy costs and long service interval of the vacuum belt filter, the filter means is in the form of a capillary filter, each vacuum box being provided with such a filter and each vacuum box being provided with an outlet having a check valve enabling a fluid flow from the inside space of the vacuum box to the outside of the vacuum box for creating an underpressure in the vacuum box when the suction station is connected to the vacuum box.

Vacuum box, belt filter, methods for servicing a vacuum belt filter, method for liquid-solid separation of a slurry, and filter element

A method for separating organic solvent(s) from an aqueous process stream including organic solvent(s), includes passing the aqueous stream including organic solvent(s) through a granular bed including glass granules, wherein at least 90% of said glass granules have a maximum particle diameter smaller than 1.0 mm.

Removal of organic solvents from aqueous process streams

The invention relates to a filter element and its manufacture to be used in removal of liquid from solids containing material to be dried in a capillary suction dryer which filter element contains a ceramic microporous layer having the pore size under 5 micrometer and supported by a ceramic internal layer having recess areas for liquid flowing. The internal layer is made of at least one substrate which continuously surrounds at least one recess area and which ceramic internal layer is surrounded by at least one essentially continuous microporous surface layer.

Filter element and method for the manufacture

The invention relates to a method for making the drying of materials, particularly finely divided materials, more effective, in which method, of a slurry containing liquid and solids there is made a filter cake ( ) onto the surface of the filter medium ( ). According to the invention, the filter cake ( ) and the oscillator ( ) are arranged, in relation to each other, so that in between the filter cake ( ) and the oscillator ( ), there is generated an acoustic field by virtue of a mechanical contact between the filter cake ( ) and the oscillator ( ) or a structural element ( ) connected to the oscillator.

Method for making drying more effective

The invention relates to a method for making the drying finely divided materials, more effective in a suction drier provided with a fine porous suction surface, where the radii of the fine pores of the suction surface are essentially within the range of 0.5-2 micrometers, and in which method, of a slurry containing liquid and solids there is made a filter cake (2,12,22) onto a fine porous liquid suction surface constituting the filter surface of the filter medium (1,11,21), According to the invention, the filter cake (2,12,22) and an oscillator (6,15,25) are arranged, in relation to each other, so that in between the filter cake (2,12,22) and the oscillator (6,15,25), there is generated an acoustic field by virtue of a mechanical contact between the filter cake (2,12,22) and the oscillator (6,15,25) or a structural element (7,16,26) connected to the oscillator.

Oscillatable filter medium

The invention relates to a method for cleaning the filter medium in a suction dryer by means of ultrasound in an essentially continuous operation. According to the invention, the ultrasonic beams emitted from at least one ultrasonic oscillator (1, 12, 22, 36) are focused essentially near to the filter surface (4, 14, 25) of the filter medium, advantageously on the filter surface (4, 14, 25) of the filter medium, in order to create at least one ultrasound focusing zone.

Method for cleaning the filter medium in a suction dryer by focusing

An apparatus for detaching a filter cake created by a suction dryer from off the filter surface of a filter medium and for an essentially simultaneous treatment of the cake to a form advantageous for further processing. The apparatus comprises a suction dryer (1, 11, 27), a connected filter surface (4, 14, 28) and a basin (2, 13, 27) for the material to be filtered. According to the invention, in the vicinity of the filter surface (4, 14, 28) of the filter medium, there is installed a blowing member (7, 17, 21) with at least one part, the blowing effect whereof can advantageously be extended over the whole width of the filter surface (4, 14, 28) of the filter medium, on which surface the filter cake can be formed.

Apparatus for treating a filter cake

Method of cleaning filter discs in a suction dryer using ultrasonic

An apparatus, method and band for forming and/or dewatering a fibrous web, in which the web or a pulp suspension layer forming the same is conveyed and supported through a significant portion of its run in a paper machine by a specific processing band, while liquid such as water is simultaneously removed therefrom by hydraulically contacting the same with liquid present under vacuum or underpressure within the processing band, through a finely porous, liquid-suction surface on the band that is saturated with liquid.

Method and apparatus for dewatering a fibrous web

Growing community of inventors

Turku, Finland

Bjarne Ekberg