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WO2007003714A1 - Procédé de pressage, presse, article pressé, et liquide de presse - Google Patents

Procédé de pressage, presse, article pressé, et liquide de presse Download PDF

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Publication number
WO2007003714A1
WO2007003714A1 PCT/FI2006/050308 FI2006050308W WO2007003714A1 WO 2007003714 A1 WO2007003714 A1 WO 2007003714A1 FI 2006050308 W FI2006050308 W FI 2006050308W WO 2007003714 A1 WO2007003714 A1 WO 2007003714A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
press
press chamber
pressed
wet pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/FI2006/050308
Other languages
English (en)
Inventor
Esko Partanen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PRESECO DEWATERING Oy
Original Assignee
PRESECO DEWATERING Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PRESECO DEWATERING Oy filed Critical PRESECO DEWATERING Oy
Publication of WO2007003714A1 publication Critical patent/WO2007003714A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
    • D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/04—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams
    • B30B9/06—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using press rams co-operating with permeable casings or strainers
    • B30B9/062—Extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Definitions

  • the invention relates to a method according to the preamble of claim 1 for pressing wet pulp, and more particularly to a method for pressing pressed articles with a fixed shape from wet pulp, in which method the pressing is performed by means of a press chamber and a piston arranged therein.
  • the invention further relates to a press according to the preamble of claim 12 for pressing wet pulp, and more particularly to a press for pressing pressed articles with a fixed shape from wet pulp, the press comprising a press chamber and a piston arranged therein.
  • the invention still further relates to a pressed article according to claim 24, and to press liquid according to claim 25.
  • Pellets, briquettes and corresponding pressed articles are commonly manufactured from “dry pulps” or materials whose dry solids content is more than 80 percentage by weight. Such dry pulps enable production into finished pressed articles with a substantially fixed shape, without removing or separating the liquid contained therein during the pressing process. When the dry solids content of the raw material of the pressed articles drops below 80 percentage by weight, it is no longer possible to manufacture such pressed articles with a fixed shape without removing the liquid contained in the pulp being pressed. When such wet pulp having dry solids content less than 80 percentage by weight is being pressed, liquid contained in the wet pulp being pressed is to be removed. According to the prior art, the liquid may be removed e.g. by drying the wet pulp prior to pressing. This, however, is not cost- effective, and it makes pellets and briquettes more complex to manufacture. Consequently, attempts have been made so as to combine the removal of liquid with the actual pressing process.
  • a problem with the above-described slot piston technique is, however, that when pressing wet pulp, fine-grained pulp in particular, the solid matter in the pulp being pressed tends to become pressed out via the slots, together with the liquid. Furthermore, the structures of a slot piston are complex, which makes the slot piston expensive to manufacture. Besides, it has proven difficult, even with modern machining techniques, to provide slots that are sufficiently narrow. A slot piston also requires a press to be provided with counter ridges or other cleaning equipment enabling the slots in the piston to be cleaned so that liquid can be led away from the pressed articles.
  • An object of the invention is thus to provide a method for pressing wet pulp, and a press for pressing wet pulp and so as to enable the aforementioned problems to be solved.
  • the object of the invention is achieved by a method according to the characterizing part of claim 1 , which is characterized by pressing the wet pulp in the press chamber by the piston, wherein an outer surface of the piston in the direction of movement thereof is substantially even and the perimeter of the outer surface of the piston is smaller than a corresponding inner surface of the press chamber over at least a section of the distance of movement of the piston such that liquid being separated from the wet pulp in connection with pressing is led away from the pressed articles via a flow channel provided between the outer surface of the piston in the direction of movement thereof and a corresponding inner surface of the press chamber.
  • a press according to the characterizing part of claim 12, which is characterized in that an outer surface of the piston in the direction of movement thereof is substantially even, and that the perimeter of the outer surface of the piston is smaller than the perimeter of a corresponding inner surface of the press chamber over at least a section of the distance of movement of the piston such that between the outer surface of the piston in the direction of movement thereof and the corresponding inner surface of the press chamber, a flow channel is provided via which liquid being separated from the wet pulp in connection with the pressing is dis- chargeable from the pressed articles.
  • a pressed article according to the characterizing part of claim 24, which is characterized in that the pressed article is manufactured by pressing wet pulp in a press chamber by a piston whose outer surface in the direction of movement thereof is substantially even and the perimeter of the outer surface of the piston is smaller than the perimeter of a corresponding inner surface of the press chamber over at least a section of the distance of travel of the piston such that liquid being separated from the wet pulp in connection with the pressing is discharged from the articles being pressed via a flow channel provided between the outer surface of the piston in the direction of movement thereof and the corresponding inner surface of the press chamber.
  • the invention is based on using, in order to press wet pulp, a piston which, on its outer surface sliding against the walls of a press chamber, is substantially even and which, in connection with the pressing procedure, moves inside the press chamber at least partly loosely.
  • the perimeter of the outer surface of the piston in the direction of movement thereof is made smaller than the corresponding inner surface of the press chamber such that a clearance or gap is provided between this outer surface of the piston and the inner surface of the press chamber, via which liquid being pressed from the wet pulp during the pressing procedure may be discharged from the pressed article being produced.
  • the piston does not move in a tight manner inside the press chamber, which is usually the desired case in piston solutions, but the piston is made to generally move at least partly loosely, so that liquid is allowed to flow from a compression space defined by an end surface of the piston and the press chamber via the clearance.
  • This may also be achieved such that the outer surface of the press chamber is formed so that only a section of the distance of movement of the piston is provided with a clearance, e.g. when the piston pushes its way forward in order to press the wet pulp, in which case in a backward-drawn position, no clearance any longer exists between the outer surface of the piston and the inner surface of the press chamber.
  • a clearance is provided by making the piston so much smaller than the press chamber that a gap is provided between a wall of the press chamber and the piston to allow liquid contained in the wet pulp to flow therethrough.
  • This can be implemented in two alternative manners.
  • the piston is dimensioned such that a clearance or gap of equal size is provided at every point between the outer surface of the piston in the direction of movement thereof and the corresponding inner surface of the press chamber.
  • the aforementioned clearance or gap thus forms a flow channel which allows liquid contained in the wet pulp to flow away from the pressed article being produced in connection with the pressing process.
  • the clearance must not be too large so as not to enable the solid matter to pass therethrough. Therefore, the clearance is to be adjusted to be of the desired size in accordance with the properties of each particular pulp being pressed.
  • the method and press according to the invention enable pressed articles to be manufactured from any wet pulp.
  • wet pulp thus refers to pulp whose solids content is equal to or less than 80 percentage by weight, less than 75 percentage by weight, or less than 65 percentage by weight.
  • the pressed articles being produced have a substantially fixed shape which may be any shape.
  • the pressed articles may be e.g. pellets or briquettes that are used for producing thermal energy. Pressed articles may thus be pressed from any wet pulp; preferably, pressed articles are pressed from wet, plant-based raw material. Furthermore, press liquid separated from wet pulp and recovered during pressing may also be recovered and utilized.
  • An advantage of the method and press according to the invention is a simple and reliable structure, which is cost-efficient.
  • the press is also easy and quick to service.
  • the solution of the invention provides a way to remove liquid from wet pulp being pressed which is more efficient than the prior art solutions.
  • a slotless piston is also easy to clean, and no separate cleaning equipment is necessary for cleaning the piston.
  • Figure 1 shows a longitudinal cross-section of a press according to the invention as well as phases for pressing wet pulp in the press;
  • Figure 2 shows a cross-section of the press of Figure 1 in a direction perpendicular to the longitudinal direction;
  • Figure 3 shows a cross-section of a press according to another embodiment
  • Figure 4 shows an embodiment according to the invention for adjusting a piston.
  • Figure 1 shows a press 1 according to the present invention, and phases A, B, and C for pressing wet pulp such that during the phases a piston 5 makes one press movement in a press chamber 2.
  • MM refers to wet pulp to be fed
  • M refers to pulp from which liquid has been partly removed
  • KM refers to dry pulp from which liquid has been removed
  • PT refers to a pressed article that has been produced.
  • the press 1 comprises a press chamber 2 provided with a feed opening 7 for feeding wet pulp MM, a pressure cone 3 for pressing the wet pulp MM, a nozzle 4 for producing a pressed article and conveying it out of the press chamber, and a liquid discharge opening 8 for discharging liquid N separated from the wet pulp from the press chamber 2, as well as a piston 5 provided in the press chamber 2 and having a piston rod 6.
  • a clearance or gap D is provided between an outer surface 11 of the piston 5 parallel with the direction of movement thereof and a corresponding inner surface 12 of the press chamber 2, in other words the piston 5 does not move in a tight manner inside the press chamber 2.
  • the surfaces 11 and 12 thus refer to parallel surfaces of the piston 5 and the press chamber 2 which slide against one another during a press movement of the piston 5, i.e. to the side surfaces 11 of the piston 5 and the side surfaces 12 of the press chamber 2.
  • phase A of Figure 1 the piston 5 is in a backward-drawn position, and wet pulp MM is fed to the press chamber 2 via the feed opening 7 so that a space defined by the press chamber 2, an end 13 of the piston 5 and the pressure cone 3 is being filled up with the wet pulp MM.
  • phase B the rod 6 of the piston 5 is subjected to a force in the direction of arrow F, whereby the piston 5 starts to move inside the press chamber 2 towards the pressure cone 3, which tapers towards the nozzle 4.
  • the piston 5 closes the feed opening 7, and the pulp M fed into the press chamber 2 starts becoming compressed, so that when the pressure it is being subjected to increases, the liquid contained in the pulp is pressed out of the pulp M.
  • phase C liquid N is removed from the pulp M during the entire pressing phase B, until the piston 5 has moved to a completely forward- thrust position in phase C of Figure 1.
  • the piston has pushed the pulp M into the pressure cone 3 and into the nozzle 4, and liquid has been removed from the pulp M via the flow channel 9 provided between the outer surface 11 of the piston 5 parallel with the direction of movement thereof and the corresponding inner surface 12 of the press chamber 2.
  • the solids content of the pressed pulp KM and the pressed article PT discharged from the nozzle 4 has thus increased as compared with that of the wet pulp MM that was fed into the press chamber 2.
  • the method and press according to the invention also increase the solids content of the pulp being pressed.
  • the solids content of the pressed pulp KM and/or the pressed article PT being produced is preferably more than 75 percentage by weight, more preferably more than 80 percentage by weight, and most preferably more than 90 percentage by weight.
  • the piston 5 returns into the backward-drawn position according to phase A, and the above-described phases are repeated. Any liquid N that possibly still resides on the side of the piston rod 6 of the piston 5 becomes discharged from the press chamber 2 via the liquid discharge opening 8 during the return movement of the piston 5.
  • Figure 2 shows a cross-section of a piston 5 and a press chamber 2 of the press 1 of Figure 1 perpendicular to the direction of movement of the piston 5. According to the figure, both the piston 5 and the press chamber 2 have a circular cross-section.
  • both the piston 5 and the press chamber 2 may also be oval, square, polygonal, or of another shape.
  • the diameter of the even outer surface 11 of the piston 5 is smaller than the diameter of the inner surface 12 of the press chamber 2 such that a gap or clearance D is provided between the outer surface 11 of the piston 5 and the inner surface of the press chamber 12, thus constituting a flow channel 9.
  • the piston 5 moves loosely inside the press chamber 2.
  • the properties of wet pulps to be pressed may vary significantly, so the optimal width of the clearance D also varies according to the wet pulp MM being pressed. For example, the fraction size of the solid matter and the amount of liquid contained in the wet pulp MM as well as the compressibility thereof etc. may vary. It is thus important to choose an appropriate piston 5 on the basis of the properties of the wet pulp MM to be pressed in order to make the flow channel 9 suitable for the pulp MM being pressed. In such a case, the perimeter of the outer surface 11 of the piston 5 is adjusted with respect to the perimeter of the inner surface 12 of the press chamber 2 according to the properties of the wet pulp MM being pressed at a given time so as to provide a width of the clearance D, i.e.
  • the size of the flow channel 9, which is suitable for the pulp MM being pressed may be carried out by dimensioning the diameter of the outer surface 11 of the piston 5 having a circular cross-section perpendicular to the direction of movement of the piston 5, with respect to the diameter of the inner surface 12 of the press chamber 2 having a correspondingly circular cross-section, according to the properties of the wet pulp MM being pressed at a given time in order to make the flow channel 9 suitable for the pulp MM being pressed.
  • the piston may e.g. be changed according to the properties of the wet pulp being pressed at a given time so as to enable a flow channel 9, i.e. a clearance D, in accordance with the needs of the properties of this particular pulp to be provided.
  • the above may be achieved by dimensioning and/or shaping the cross-section of the piston 5 perpendicular to the direction of movement thereof with respect to the corresponding cross-section of the press chamber 2 such that at least over a section of the outer surface 11 of the piston 5, a clearance D is provided between the outer surface 11 of the piston 5 and the inner surface 12 of the press chamber 2 so as to function as a flow channel 9.
  • a clearance D is provided between the outer surface 11 of the piston 5 and the inner surface 12 of the press chamber 2 so as to function as a flow channel 9.
  • the shape of the cross-section perpendicular to the direction of movement of the piston 5 may be different from the shape of the corresponding cross-section of the press chamber 2 in order to provide a flow channel 9 between the even outer surface 11 of the piston 5 and the inner surface 12 of the press chamber 2.
  • this may be achieved by making the cross-section perpendicular to the direction of movement of the piston 5 oval and the corresponding cross-section of the press chamber 2 circular, whereby a flow channel 9 is provided between the outer surface of the piston 5 and the inner surface of the press chamber 2 substantially in the directions of the shorter axis of the oval cross-section of the piston 5.
  • Such an oval piston may be dimensioned such that the outer surface of the piston, in the directions of the longer axis, is in a close contact with the inner surface of the press chamber, so that the clearance between the outer surface of the piston and the inner surface of the press chamber is provided only in the directions of the short axis of the substantially oval cross-section.
  • this may be achieved by shaping the cross-section perpendicular to the direction of movement of the piston with respect to the corresponding cross-section of the press chamber in a numerous alternative ways.
  • the point is that the outer surface in the direction of movement of the piston is even, and that the perimeter of this outer surface is smaller than the perimeter of the inner surface of the press chamber 2 such that when the piston resides inside the press chamber, a clearance is provided between the outer surface of the piston and the inner surface of the press chamber.
  • a clearance may also be provided only over a part of the perimeter of the piston and the press chamber, but the point is that the clearance, at least at some point, extends over the entire length of the outer surface of the piston in the direction of movement thereof.
  • a flow channel may also be provided only over a part of the reciprocal movement of the piston, e.g. in the vicinity of a state wherein the piston has been pushed completely forward.
  • Figure 3 shows an embodiment of the present invention, wherein the inner surface 12 of the press chamber 2 comprises a cavity 10 which constitutes at least a part of the flow channel 9 and which produces a clearance S.
  • the cavity 10 may extend around the inner surface of the press chamber 2 or only over a part of the perimeter thereof. Furthermore, the cavity
  • the 10 may have a length which is shorter than the length of the outer surface 11 of the piston 5 or which is larger than or equal to the length of the outer surface
  • the cavity 10 may also by itself constitute the entire flow channel 9 when its length is larger than a length in the direction of movement of the outer surface 11 of the piston 5, in which case the flow channel 9 may be provided at a certain point in the reciprocal distance of movement of the piston 5.
  • the depth, shape and location of the cavity 10 may vary.
  • the cross-section transverse to the direction of movement of the piston 5 of the press chamber 2 may change over the length of the press chamber such that the cross-sectional area, i.e. the perimeter of the inner surface 12 of the press chamber, is increased towards the pressure cone 3.
  • the flow channel 9 is then provided between the outer surface 11 of the piston 5 and the inner surface of the press chamber 2 when the piston 5 approaches the pressure cone 3. Also in this case, the flow channel 9 is provided only over a section of the distance of movement of the piston 5.
  • the width of the clearances D and/or S may further be adjusted by piston adjustment equipment such that a press comprises means for adjusting a flow channel 9 provided between the piston 5 and the press chamber 2 by adjusting the perimeter of the outer surface 11 of the piston 5.
  • the piston adjustment equipment may comprise e.g. means for adjusting the perimeter of the outer surface 11 of the piston 5 by means of thermal expansion and/or contraction.
  • Figure 4 shows an example of piston adjustment equipment which comprises means for producing liquid circulation in the piston 5. According to Figure 4, a flowing substance, which may be a gas or a liquid and which has a temperature T1 , is fed from a pipe 26 to a tube 28, which is further connected with an input channel 22 provided in the piston rod.
  • the substance flowing from the input channel passes to a chamber 20 provided in the piston, emitting or receiving thermal energy from the piston and further flowing along a discharge channel 24 out of the piston, having a temperature T2.
  • the adjustable temperature T1 of the flowing substance enables the thermal expansion or contraction of the piston to be adjusted as necessary, e.g. according to the properties of different wet pulps or according to the temperature of a pressing process.
  • This enables the diameter D2 of the outer surface of the piston to be kept at a desired value with respect to the diameter D1 of the inner surface of the press chamber. In such a case, the clearance D also remains as desired and/or suitable for each particular wet pulp to be pressed.
  • the diameter of the outer surface of the piston may be adjusted by means of mechanical or electromechanical piston adjustment equipment that may comprise e.g. an electric resistance.
  • the mechanical piston adjustment equipment may further comprise an outer surface of the piston adjustable by a screw or threads.
  • the piston adjustment equipment preferably enables the perimeter of the outer surface of the piston to be both increased and reduced.
  • the invention further provides pressed articles as well as press liquid from liquid being removed from wet pulp.
  • the subsequent press liquid may be utilized in many ways e.g. in chemical industry, agriculture, or in similar applications.
  • the produced pressed articles may also have many uses, depending on the properties and quality of the substances being pressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Paper (AREA)
  • Actuator (AREA)

Abstract

La présente invention concerne le pressage d’articles pressés (PT) à partir de pâte grasse (MM), le pressage étant réalisé au moyen d’une chambre de presse (2) et d’un piston (5) agencé dans celle-ci. L’invention est caractérisée par le pressage de la pâte grasse (MM) dans la chambre de presse (2) par le piston (5) dont la surface extérieure (11) dans sa direction de mouvement est sensiblement uniforme et dont le périmètre de la surface extérieure (11) est inférieur au périmètre d’une surface intérieure correspondante (12) de la chambre de presse (2) de sorte qu’un liquide (N) séparé de la pâte grasse (MM) en association avec le pressage est déchargé à partir des articles pressés par l'intermédiaire d’un canal d’écoulement (9) prévu entre la surface extérieure (11) du piston (5) dans sa direction de mouvement et la surface intérieure correspondante (12) de la presse (2).
PCT/FI2006/050308 2005-07-04 2006-07-03 Procédé de pressage, presse, article pressé, et liquide de presse Ceased WO2007003714A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20055384A FI20055384L (fi) 2005-07-04 2005-07-04 Menetelmä puristamiseksi, puristin, puriste sekä puristeneste
FI20055384 2005-07-04

Publications (1)

Publication Number Publication Date
WO2007003714A1 true WO2007003714A1 (fr) 2007-01-11

Family

ID=34803253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2006/050308 Ceased WO2007003714A1 (fr) 2005-07-04 2006-07-03 Procédé de pressage, presse, article pressé, et liquide de presse

Country Status (2)

Country Link
FI (1) FI20055384L (fr)
WO (1) WO2007003714A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009050289A1 (de) * 2009-10-15 2011-06-09 Salzgitter Flachstahl Gmbh Vorrichtung zum Brikettieren von Schlämmen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086299A (ja) * 2000-09-13 2002-03-26 Takagi Ind Co Ltd 脱水機
FI112924B (fi) * 2001-01-31 2004-02-13 Esko Partanen Menetelmä ja laite pellettien, brikettien tai vastaavien puristamiseksi kasviraaka-aineesta
JP2005238288A (ja) * 2004-02-26 2005-09-08 Nachi Fujikoshi Corp 研削又は研磨屑の固形化方法及び装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002086299A (ja) * 2000-09-13 2002-03-26 Takagi Ind Co Ltd 脱水機
FI112924B (fi) * 2001-01-31 2004-02-13 Esko Partanen Menetelmä ja laite pellettien, brikettien tai vastaavien puristamiseksi kasviraaka-aineesta
JP2005238288A (ja) * 2004-02-26 2005-09-08 Nachi Fujikoshi Corp 研削又は研磨屑の固形化方法及び装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009050289A1 (de) * 2009-10-15 2011-06-09 Salzgitter Flachstahl Gmbh Vorrichtung zum Brikettieren von Schlämmen
DE102009050289B4 (de) * 2009-10-15 2011-09-22 Salzgitter Flachstahl Gmbh Vorrichtung zum Brikettieren von Schlämmen

Also Published As

Publication number Publication date
FI20055384A7 (fi) 2007-01-05
FI20055384L (fi) 2007-01-05
FI20055384A0 (fi) 2005-07-04

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