EP2307144B1 - Aufgabevorrichtung mit zwei unabhängig voneinander variierbaren drehschiebern - Google Patents

Aufgabevorrichtung mit zwei unabhängig voneinander variierbaren drehschiebern Download PDF

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Publication number
EP2307144B1
EP2307144B1 EP09780041.1A EP09780041A EP2307144B1 EP 2307144 B1 EP2307144 B1 EP 2307144B1 EP 09780041 A EP09780041 A EP 09780041A EP 2307144 B1 EP2307144 B1 EP 2307144B1
Authority
EP
European Patent Office
Prior art keywords
shaft
nip
pressure roller
roller press
variable
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.)
Not-in-force
Application number
EP09780041.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2307144A1 (de
Inventor
Alex Nickel
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
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 KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Publication of EP2307144A1 publication Critical patent/EP2307144A1/de
Application granted granted Critical
Publication of EP2307144B1 publication Critical patent/EP2307144B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/286—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides

Definitions

  • the invention relates to a high-pressure roller press for high-pressure comminution of millbase with a feeding device which controls the millbase in the nip between two rollers of the high-pressure roller press gives up.
  • the nip is wider than the largest extent of the crushed regrind, it is important to load the nip so that at the same time a certain amount of the millbase passes through the nip. If the nip is charged with too little amount per unit of time, then in extreme cases, the material to be ground no longer crushed or the high-pressure roller press acts much like a crusher. On the other hand, if too much is added to the nip, it may happen that the high-pressure roller press is overloaded and begins to vibrate.
  • the nip increases and decreases in resonant frequency and the rotational speed varies with resonant frequency, since in an overload, the rollers of the high-pressure roller press are repeatedly braked by the excessive amount of ground material and accelerated by the drive motors again. Therefore, in the high-pressure crushing in the nip is to ensure that the nip is applied to a suitable extent with millbase.
  • the actual task quantity But depends strongly on the nature of the ground material. The parameters to be considered and worth mentioning are the particle size distribution, the mean grain size and the uniformity of the available ground material flow on the nip. For the task on the nip so the material to be ground or 'feed material' must be supplied evenly from above into the nip.
  • the type of material feed has a major influence on the smooth running of the high-pressure roller press. To improve the intake conditions and to ensure a uniform distribution of the drive power to the drive motors of the high-pressure roller press, therefore, the function of a feeder over the nip is steadily improved.
  • German patent application DE 34 38 310 A1 discloses a device for equalizing the task of feedstock via a feed gate into a crushing machine, wherein the feed material is deflected several times.
  • German Offenlegungsschrift DE 40 06 971 A1 discloses a feeder for filling granular solids in a crushing machine, wherein a pipe resonator is disposed between a hopper and the crushing machine.
  • German Offenlegungsschrift discloses DE 196 32 9 76 A1 a feeder which divides the feedstock through a screen into two fractions and dispenses the fractions from different sides onto the nip of a high pressure roller press.
  • the object of the invention is to improve the effect of the feeder in relation to the intake behavior of the entire high-pressure roller press and to optimize it in relation to a uniform distribution of the drive power to different drive motors of the high-pressure roller press.
  • the object of the invention is achieved in that the feeding device of the high-pressure roller press has at least two rotary valves whose position can be varied independently of one another.
  • the feeding device Due to the presence of at least two rotary valves, the feeding device according to the invention makes it possible to adapt to the changing requirements with changing material properties of the feed material. So it is possible to symmetrically open and close the two rotary valves, so as to give up a certain, average total amount per unit time on the high-pressure roller press. In addition to this pure dosing by a uniform opening around the center of the feeder centered on the nip of the high-pressure roller press, it is also possible to adjust the two rotary valve so that the center of the opening between the at least two rotary valves is not located above the center of the nip, but laterally offset to. This makes it possible to vary not only the task quantity but also the precise task location. Especially when starting the high-pressure roller press this adjustment makes it easy to achieve the optimum operating condition of the high-pressure roller press.
  • the rotary valves are arranged on a variable in height above the nip shaft.
  • the fact that the shaft can be varied in height, and thus the rotary valve can be the bulk cone, which emerges from the feeder, within the limits of the natural cone of material, which is determined by the material properties of the feed, on the one hand and through change the mechanical movement of the cone from below through the rotating rollers of the high-pressure roller press, on the other side.
  • This possibility of variation also offers the operating personnel to form the optimum material cone over the nip, so that a low-vibration and as low as possible energy-consuming operation of the high-pressure roller press is possible.
  • the invention is provided in a further embodiment that the shaft is provided with an exchangeable inner lining as abrasion protection. If the abrasion protection has been removed during operation, it is possible to replace the inner lining, which, like two interposed pits, intermesh with comparatively little effort, and thus the shaft, which besides its shaft effect also has to dissipate mechanical forces, is protected against destruction.
  • the rotary valves are adjustable according to the invention via a hydraulic system.
  • the hydraulic operation has proved advantageous because it is robust enough to withstand the harsh conditions to withstand the grinding of brittle goods. It is provided that the hydraulic system engages the rotary valve on one side and engages with the other side of the telescopic hydraulic system at the height of the nip variable shaft. If the supply lines for the hydraulic systems are long enough and flexible, it is possible to raise and lower the height-variable shaft above the nip, with the hydraulic systems traveling with the shaft for opening and closing the rotary valves.
  • the position of the variable in height above the nip shaft is adjusted according to the invention via a further hydraulic system, wherein it has proved to be advantageous if at least one hydraulic system is arranged on two opposite sides of the shaft.
  • These hydraulic systems lift the entire shaft, on which a funnel-shaped plate is arranged, in which conveyor belts or other conveying members drop the feed.
  • the feed material located in the hopper is raised or lowered again.
  • the shaft is telescopically formed, and the hopper does not travel with the shaft.
  • the telescopic shaft collapses and extends depending on the direction in which the shaft moves, however, it has proved to be more advantageous if just this telescopic arrangement of the shaft is not performed.
  • Abrasive material can collect too easily in the telescopic attachment and disturb the telescope function.
  • variable in height above the nip shaft is adjustable via a hydraulic system in height above the nip, wherein the hydraulic system on the one hand on a rack system which accommodates the variable in height over the nip shaft, and on the other hand engages at the height above the nip variable shaft.
  • the hydraulic systems for raising and lowering the shaft engage on the one hand as close as possible to the shaft itself and on the other hand as close as possible to a vertical struts of a rack system, within which the shaft up and moved to prevent buckling of the shaft in the rack system under mechanical stress.
  • the hydraulic system is almost vertical or slightly inclined vertically.
  • the linear bearing consists in its simplest form of a U-profile, which is arranged with its opening to the outside on the shaft, and in which engages a horizontal support, which extends from the rack system to the linear bearing; while the support is firmly connected to the rack system.
  • the reverse arrangement is possible in which the support is attached to the shaft and engages in a linear bearing on the frame system.
  • FIG. 1 A high-pressure roller press 100 is shown on which a feeding device 200 according to the present invention is placed.
  • the high-pressure roller press 100 two rollers 101 and 102, wherein roller 102 is largely hidden in this view, and the two rollers 101 and 102 form a nip 103, which passes through the feedstock 104, not shown here the feedstock 104 is crushed during the passage of the nip 103 by the high pressure prevailing therein.
  • the rollers 101 and 102 are in large-sized bearings 110, 111, 112 and the in FIG. 1 bearing hidden by the drawing view 113 (visible in FIG FIG.
  • both rollers 101 and 102 are designed as idler rollers or one of the rollers 101 and 102 is a fixed roller and the other roller is a loose roller, wherein the idler roller is arranged movably within the machine frame 120 relative to the hard roller is.
  • rollers 101 and 102 rotate in opposite directions, in which example the front roller 101 has the direction of rotation indicated by arrow 123 and the second roller 102 has a corresponding opposite direction of rotation. So that the rollers 101 and 102 do not slip and do not grind against one another and thus rapidly wear out strongly, but press exclusively, it is provided that the rollers 101 and 102 rotate as much as possible with the same, but opposite rotational speed without relative slippage.
  • the feeder device 200 is fixed by means of a rack system 201, wherein the rack system 201 forms a cage within which a height-adjustable shaft 202 above the nip 103 is arranged.
  • Shaft 202 is mounted in linear bearings 210, 211, 212 and 213 and is connected to the frame system 201 via hydraulic rams 220, 221, 222 and a hydraulic ram 223 concealed in this view.
  • the hydraulic rams 220, 221, 222 and 223 extend telescopically, thus lifting the shaft 202 out of the rack system 201.
  • a larger hopper is arranged, in which conveyors or other transport devices pour feed 104, which is applied by the feeder 200 uniformly on the nip 103.
  • conveyors or other transport devices pour feed 104, which is applied by the feeder 200 uniformly on the nip 103.
  • the feeder 200 is as a Einzelgewerk in FIG. 2 illustrated and explained in detail.
  • the rack system 201 can be seen, within which a variable in height above the nip 103 shaft 202 is received, the shaft 202 is connected via hydraulic rams 220, 221, 222 and 223 to the rack system 201.
  • the various hydraulic rams 220, 221, 222 and 223 each depend on a vertical struts 240, 241, 242 and 243 and attack the shaft 202 in its immediate vicinity.
  • the thus diagonal arrangement of the hydraulic rams 240, 241, 242 and 243 is in FIG. 2 to be taken clearly.
  • the well 202 is supported in linear bearings 210, 211, 212, 213, with four horizontal supports 250, 251, 252 and 253 attached to the well 202, each in one of the linear bearings 210, 211, 212, 213 intervene.
  • the two rotary valves 230 and 231 which are opened and closed independently of each other by hydraulic ram 260 accompanying with the shaft 202 and the hydraulic ram 261 corresponding thereto and concealed in this view.
  • the hydraulic rams 260 and 261 engage at one end on the shaft 202 and each with a different end of the hydraulic ram 260 and 261 on the rotary valves 230 and 231.
  • the shaft 202 inserted into the rack system 201 is in FIG. 3 in a side view, from which the function of the hydraulic rams 220, 221 and the concealed hydraulic rams 222 and 223 for raising and lowering the entire shaft 202 on the one hand and the function of the hydraulic rams 260 and 261 on the other hand for opening and closing the rotary valve 230 and 231 better apparent .
  • FIG. 3 clearly show that the center of the opening between the two rotary valves 230 and 231, depending on the position of the rotary valve 230 and 231 also located next to the center above the nip 103 (103 ').
  • the rotary valve 230, 231 give the material to be ground 104 centrally above the nip 103 on the high-pressure roller press 100 and give non-symmetrical position the material to be ground 104 out of the center (103 ') above the nip 103 on the high-pressure roller press 100
  • FIG. 4 is shown a lower part of the shaft 202, which is shown here without hydraulic ram 220, 221, 222 and 223 and without hydraulic rams 260 and 261.
  • the rack system 201 is separable from the bay 202 by releasing the hydraulic rams 220, 221, 222, and 223 from the rack system 201.
  • FIG. 5 is the thus separated rack system 201 shown without moving elements and in FIG. 5 as shown mounted in the machine frame 120 of a high-pressure roller press.
  • the shaft 202 is hooked into the rack system 201, in which the hydraulic rams 220, 221, 222 and 223 connect and support the shaft 202 with the rack system 201.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
EP09780041.1A 2008-07-09 2009-06-30 Aufgabevorrichtung mit zwei unabhängig voneinander variierbaren drehschiebern Not-in-force EP2307144B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008009234 2008-07-09
PCT/EP2009/058211 WO2010003850A1 (de) 2008-07-09 2009-06-30 Aufgabevorrichtung mit zwei unabhängig voneinander variierbaren drehschiebern

Publications (2)

Publication Number Publication Date
EP2307144A1 EP2307144A1 (de) 2011-04-13
EP2307144B1 true EP2307144B1 (de) 2013-09-18

Family

ID=41112517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09780041.1A Not-in-force EP2307144B1 (de) 2008-07-09 2009-06-30 Aufgabevorrichtung mit zwei unabhängig voneinander variierbaren drehschiebern

Country Status (11)

Country Link
US (1) US8439288B2 (es)
EP (1) EP2307144B1 (es)
CN (1) CN102137720B (es)
AU (1) AU2009268180B2 (es)
BR (1) BRPI0915701A2 (es)
CA (1) CA2729880C (es)
CL (1) CL2009001544A1 (es)
DK (1) DK2307144T3 (es)
PE (1) PE20110473A1 (es)
WO (1) WO2010003850A1 (es)
ZA (1) ZA201008402B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019120469A1 (de) * 2019-07-30 2021-02-04 Khd Humboldt Wedag Gmbh Aufgabevorrichtung für eine Hochdruckwalzenpresse

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010015374B4 (de) * 2010-04-20 2015-03-12 Khd Humboldt Wedag Gmbh Maschinenrahmen für eine Walzenpresse
DE202010005881U1 (de) * 2010-04-21 2010-07-29 Khd Humboldt Wedag Gmbh Aufgabevorrichtung für eine Hochdruckrollenpresse
US8695907B2 (en) 2012-04-20 2014-04-15 Metso Minerals Industries, Inc. Roller crusher with cheek plates
US8708265B2 (en) 2012-04-20 2014-04-29 Metso Minerals Industries, Inc. Roller crusher with balancing cylinders
DE102013017134A1 (de) * 2013-10-16 2015-04-30 Pallmann Maschinenfabrik Gmbh & Co. Kg Vorrichtung zum Bearbeiten von schüttfähigem Aufgabegut
DE102013022206B4 (de) * 2013-12-17 2015-07-30 Khd Humboldt Wedag Gmbh Materialflussklappe für Aufgabevorrichtung einer Rollenpresse
CA2960677C (en) * 2016-04-28 2022-04-12 Gerard DEVLOO Canola seed sample crusher
DE102017121756B3 (de) 2017-09-20 2018-08-02 Thyssenkrupp Ag Hochdruckwalzenpresse und Aufgabevorrichtung zur kontrollierten Zuführung von Mahlgut
DE102019200175A1 (de) * 2019-01-09 2020-07-09 Thyssenkrupp Ag Walzenmühle mit Aufgabeeinrichtung

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE1245257B (de) * 1965-02-23 1967-07-20 Alois Heger Vorrichtung zum Zerkleinern von insbesondere festen, koernerartigen Stoffen
DE2044140A1 (de) * 1970-09-05 1972-03-16 Klöckner-Humboldt-Deutz AG, 5000 Köln Großkreiselbrecher
DE3438310A1 (de) 1984-10-19 1986-04-24 Klöckner-Humboldt-Deutz AG, 5000 Köln Vorrichtung zur vergleichmaessigung der aufgabe von aufgabegut ueber eine aufgabeschleuse, insbesondere eine doppelklappenschleuse, in eine zerkleinerungsmaschine
DE3742083A1 (de) * 1987-12-11 1989-06-22 Kloeckner Humboldt Deutz Ag Zweiwalzenmaschine wie z. b. walzenpresse
DE3907830A1 (de) * 1989-03-10 1990-09-13 Krupp Polysius Ag Gutbettwalzenmuehle
US5048763A (en) * 1990-02-21 1991-09-17 Fuller Company Multi-pass roll crusher
DE4006971A1 (de) 1990-03-06 1991-09-12 Bayer Ag Vorrichtung zum einfuellen von koernigen feststoffen in eine zerkleinerungsmaschine
DE4010405A1 (de) * 1990-03-31 1991-10-02 Buehler Ag Speisevorrichtung fuer ein mahlwalzwerk
US5076504A (en) * 1990-05-31 1991-12-31 Animal Health Sales Poultry pulverizer
DE4226182A1 (de) * 1992-08-07 1994-02-10 Kloeckner Humboldt Deutz Ag Anlage und Verfahren zur Druckbehandlung körnigen Gutes
DE4228058C2 (de) * 1992-08-24 1995-04-20 Kloeckner Humboldt Deutz Ag Anlage und Verfahren zur Druckbehandlung körnigen Gutes
DE4314413C2 (de) * 1993-05-04 1996-05-09 Heidenauer Maschf Gmbh Verfahren zum Beschicken einer Walzenreibmaschine
DE19632976A1 (de) 1996-08-16 1998-02-19 Deutz Ag Zweiwalzenmaschine und Verfahren zur Druckbehandlung körnigen Gutes
SE529644C2 (sv) * 2005-07-08 2007-10-09 Metso Minerals Wear Prot Ab Infästningsspindel samt infästningsförfarande

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019120469A1 (de) * 2019-07-30 2021-02-04 Khd Humboldt Wedag Gmbh Aufgabevorrichtung für eine Hochdruckwalzenpresse

Also Published As

Publication number Publication date
WO2010003850A1 (de) 2010-01-14
CA2729880A1 (en) 2010-01-14
US20110114772A1 (en) 2011-05-19
US8439288B2 (en) 2013-05-14
CN102137720A (zh) 2011-07-27
ZA201008402B (en) 2011-12-28
PE20110473A1 (es) 2011-07-09
AU2009268180A1 (en) 2010-01-14
DK2307144T3 (da) 2014-01-13
AU2009268180B2 (en) 2014-04-10
CN102137720B (zh) 2013-06-05
CL2009001544A1 (es) 2010-04-05
CA2729880C (en) 2017-08-01
EP2307144A1 (de) 2011-04-13
BRPI0915701A2 (pt) 2015-10-27

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