EP0386520A2 - Broyeur à cylindres à lit de matière - Google Patents

Broyeur à cylindres à lit de matière Download PDF

Info

Publication number
EP0386520A2
EP0386520A2 EP90103272A EP90103272A EP0386520A2 EP 0386520 A2 EP0386520 A2 EP 0386520A2 EP 90103272 A EP90103272 A EP 90103272A EP 90103272 A EP90103272 A EP 90103272A EP 0386520 A2 EP0386520 A2 EP 0386520A2
Authority
EP
European Patent Office
Prior art keywords
roller
guide walls
vertical
walls
vertical guide
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.)
Granted
Application number
EP90103272A
Other languages
German (de)
English (en)
Other versions
EP0386520A3 (fr
EP0386520B1 (fr
Inventor
Norbert Dipl.-Ing. Patzelt
Gotthardt Dipl.-Ing. Blasczyk
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Priority to AT90103272T priority Critical patent/ATE93165T1/de
Publication of EP0386520A2 publication Critical patent/EP0386520A2/fr
Publication of EP0386520A3 publication Critical patent/EP0386520A3/fr
Application granted granted Critical
Publication of EP0386520B1 publication Critical patent/EP0386520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a material bed roller mill according to the preamble of claim 1.
  • a material bed roller mill of the type required is known for example from DE-OS 35 35 406.
  • two opposing, slide-like covers are provided, which can be shifted in a straight line against each other in their chosen inclined position, thereby regulating the material feed width and / or the height of the material column on the rollers to be able to.
  • the invention has for its object to improve a material bed roller mill of the type required in the preamble of claim 1 in such a way that, with a relatively simple structural design, the pressure which is established by the column of grinding material above the rollers can be used as far as possible for material bed reduction even with fluctuating supply of grinding material .
  • the regrind to be fed to the roll gap is limited laterally in guide walls which can be adjusted transversely to the vertical central plane of the material bed roller mill, that is to say in the transverse direction to the roller axes, so that a minimum height is obtained both with smaller amounts of regrind and with larger amounts of regrind the column of ground material that forms can be maintained. It is also essential that the adjustable guide walls of the filling shaft maintain their vertical position even when they are adjusted transversely. In this way, the regrind pressure, which is formed by the regrind column above the rollers, can be practically fully utilized for comminution in the area of the nip.
  • the incoming regrind or the regrind located in the regrind column always has a reliable vertical lateral guidance even if the vertical guide walls of the filling shaft are adjusted in the transverse direction to the vertical central plane in accordance with the respective incoming regrind quantity.
  • the two vertical guide walls it can be expedient if these can be adjusted jointly in the transverse direction to the vertical central plane or individually and independently of one another in this transverse direction.
  • the millbase column laterally delimited by the vertical guide walls can thus be aligned symmetrically to the vertical center plane of the mill-bed roll mill if the two drive motors of the two mill rolls have the same power consumption in accordance with the millbase composition.
  • the regrind to be fed is of different origin and / or has very different grain sizes (if, for example, uncrushed fresh material and recycled semolina are fed together to the hopper), then it can happen that the two grinding rollers are loaded to different extents when the regrind column is fed symmetrically to the nip and whose drive motors thus show different power consumption.
  • the millbase column above the nip asymmetrical to the vertical center plane of the whale zenmühle be adjusted so that the power consumption of the drive motors of both rollers is balanced again.
  • FIGS. 1, 2 and 3 each show schematically held, largely similar cross-sectional views through a material bed roller mill according to the invention, in which three figures of the drawing. only vertical guide walls of the hopper each occupy different positions.
  • the material bed roller mill contains two rollers 1, 2 which are arranged next to one another and are pressed against one another with high grinding force, of which roller 1 is designed as a fixed roller and roller 2 as a loose roller.
  • the loose roller 2 is movably mounted in the direction of the double arrow 3 and thus in the direction of the fixed roller 1, as is known per se. Both rollers 1, 2 are preferably driven against each other by a separate drive motor, which is not illustrated in detail here.
  • the clear width B of the regrind stream fed from the filling chute 5 to the nip 4, that is to say the regrind column 6 formed thereby can be changed in the desired manner in each case, in the lower region of the filling chute 5 there are two which are opposite one another vertical guide walls 7a and 7b are provided adjustable while maintaining their vertical position transverse to the vertical central plane 8 of the material bed roller mill. These two vertical guide walls 7a, 7b thus limit the regrind flow (regrind column 6) to be fed to the roll nip 4 in the lateral direction, ie in the transverse direction to the roll axes 1a and 2a.
  • the two vertical guide walls 7a and 7b opposite each other on both sides of the vertical center plane 8 extend parallel to the roller axes 1a, 2a and essentially over the entire axial length (perpendicular to the plane of the drawing of FIGS. 1-3) of the rollers 1 and 2.
  • Both guide walls 7a, 7b can be adjusted jointly or individually and independently of one another in the transverse direction to the vertical central plane 8, ie in the direction of the double arrows 9a, 9b, depending on requirements and design. In this way, a more or less wide symmetrical regrind column 6 or 6a (FIGS. 1 and 2) or asymmetrical regrind column 6b (FIG.
  • the millbase column 6, 6a, 6b is always laterally delimited by vertically running guide walls 7a, 7b, in order thereby to utilize the full pressure generated by the millbase column above the rollers 1, 2 for comminution of the material bed.
  • the height H (FIG.
  • each of the two vertical guide walls 7a, 7b is arranged directly above an associated roller 1 or 2.
  • the lower longitudinal edge 7a 'or 7b' of each guide wall 7a or 7b has a substantially constant minimum distance a to the outer peripheral side 1b, 2b of the associated roller.
  • the filling chute 5 has a chute base body 10, which in the lower, vertical chute section 5a has two stationary chute walls 11a, 11b, which are spaced apart on both sides of the vertical central plane 8 and run parallel to the roller axes 1a, 2a , between which the two vertical guide walls 7a, 7b are arranged so as to be transverse (arrows 9a, 9b).
  • These two stationary shaft walls 11a, 11b also end at a short distance (approximately distance a in FIG. 1) above the outer circumferential side 1b or 2b of the associated roller 1 or 2.
  • transverse distance between these two stationary shaft walls 11a, 11b is so great dimensioned such that the guide walls 7a, 7b, which can move transversely between them, can be adjusted to a maximum width B of the millbase column (approximately millbase column 6 in FIG. 1).
  • the shaft base body 10 also has in the region of the upper ends 7a ⁇ , 7b ⁇ of the vertical guide walls 7a, 7b - viewed in cross section of the roller mill (cf. representations in FIGS. 1-3) - a funnel-shaped extension, which is preferably preferably by two the same size, symmetrical to the vertical center plane 8 downward (converging) inclined walls 12a and 12b is formed. These two inclined walls 12a, 12b connect approximately to the upper ends of the stationary shaft walls 11a, 11b. Above the funnel-shaped extension formed in this way, the manhole base body 10 can also have a container-like upper part 10 'with essentially straight side walls in the manner of a storage container.
  • a substantially flat slide wall 13a or 13b is fixed, preferably rigidly connected, which is assigned to one of the inclined walls 12a or 12b of the shaft base body 10.
  • Each of these essentially flat slide walls 13a, 13b is inclined in the same way as the inclined walls 12a, 12b, and each slide wall 13a or 13b is guided and adjustable in the same direction as the double arrows 14a, 14b in or on the associated inclined wall 12a or 12b .
  • each slide wall 13a, 13b can be assigned a suitable adjusting device, not illustrated in more detail, which can be designed for slides in a manner known per se in order to adjust the necessary or desired adjustment options of the vertical guide walls 7a, 7b ( jointly or individually and independently of each other).
  • the slide walls 13a, 13b explained have the advantage that they can extend the inclined walls 12a, 12b of the shaft base body 10 in the direction of the vertical central plane 8 (as an additional inclined funnel guide for the material flow to be supplied).
  • suitable additional adjustment means can also be provided on the lower end sections of the vertical guide walls 7a, 7b, which, in particular with relatively large height dimensions of the vertical guide walls 7a, 7b, for maintaining the vertical position of these guide walls 7a, 7b also worry in this lower section.
  • additional adjustment means could expediently be coupled to the adjustment devices for the slide walls 13a, 13b. It is also understood that other suitable means for transverse adjustment of the vertical guide walls 7a, 7b can also be provided.
  • FIG. 1 shows the greatest clear width B of the ground material column 6 with the vertical guide walls 7a and 7b practically completely adjusted outwards. 1, this results in a millbase column 6 with maximum width B that is symmetrical with respect to the vertical center plane 8 of the material bed roller mill or that is symmetrical with respect to the roller gap 4.
  • the two vertical guide walls 7a and 7b are adjusted by an equal amount against the vertical center plane 8, so that here again a regrind column 6a symmetrical with respect to the vertical center plane 8, but of relatively small width B 1 results.
  • FIGS. 1, 2 and 3 reveals that any settings and orientations of the mill column to be fed to the roll nip 4 are possible.
  • the asymmetrical supply of the regrind to the nip 4 is selected to a correspondingly large extent if the power consumption of the drive motor from one roller is higher than that of the other roller, so that this asymmetrical setting of the regrind stream is more pronounced on the outer circumferential side of the one Roller can be steered that the power consumption of the drive motors is the same for both rollers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Metal Rolling (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP90103272A 1989-03-10 1990-02-20 Broyeur à cylindres à lit de matière Expired - Lifetime EP0386520B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90103272T ATE93165T1 (de) 1989-03-10 1990-02-20 Gutbettwalzenmuehle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907830A DE3907830A1 (de) 1989-03-10 1989-03-10 Gutbettwalzenmuehle
DE3907830 1989-03-10

Publications (3)

Publication Number Publication Date
EP0386520A2 true EP0386520A2 (fr) 1990-09-12
EP0386520A3 EP0386520A3 (fr) 1991-05-29
EP0386520B1 EP0386520B1 (fr) 1993-08-18

Family

ID=6376046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90103272A Expired - Lifetime EP0386520B1 (fr) 1989-03-10 1990-02-20 Broyeur à cylindres à lit de matière

Country Status (7)

Country Link
US (1) US5096131A (fr)
EP (1) EP0386520B1 (fr)
AT (1) ATE93165T1 (fr)
BR (1) BR9001130A (fr)
DE (2) DE3907830A1 (fr)
ES (1) ES2044265T3 (fr)
ZA (1) ZA901230B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2731722A4 (fr) * 2011-07-14 2015-03-04 Univ Melbourne Améliorations apportées à la comminution d'un matériau et/ou l'élimination de liquide d'un matériau
DE102013022206A1 (de) * 2013-12-17 2015-06-18 Khd Humboldt Wedag Gmbh Materialflussklappe für Aufgabevorrichtung einer Rollenpresse
WO2016091264A1 (fr) * 2014-12-10 2016-06-16 Flsmidth A/S Appareil pour le meulage d'un matériau particulaire
CN113117807A (zh) * 2021-04-20 2021-07-16 汪亦冬 一种有色金属冶炼废渣综合化环保处理工艺

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4228058C2 (de) * 1992-08-24 1995-04-20 Kloeckner Humboldt Deutz Ag Anlage und Verfahren zur Druckbehandlung körnigen Gutes
DE10233811B4 (de) * 2002-07-25 2013-05-29 Khd Humboldt Wedag Gmbh Zweiwalzenmaschine zur Druckbehandlung körnigen Gutes
DE102005045591A1 (de) * 2005-09-23 2007-03-29 Polysius Ag Vorrichtung zum Sichten von Aufgabegut
DK176687B1 (da) * 2007-07-10 2009-02-23 Smidth As F L Valsepresse til formaling af partikelformet materiale
CN102076418B (zh) * 2008-07-02 2014-04-09 布勒股份公司 生产面粉的方法、料床辊磨机和之字形分离器及其应用
DK2307144T3 (da) * 2008-07-09 2014-01-13 Khd Humboldt Wedag Gmbh Doseringsanlæg med to uafhængigt af hinanden varierbare drejeventiler
EP2666543B1 (fr) * 2012-05-23 2020-04-08 Sandvik Intellectual Property AB Tube d'alimentation de concasseur à impact à arbre vertical
US11607774B2 (en) * 2015-10-19 2023-03-21 Cold Jet, Llc Blast media comminutor
JP2022072254A (ja) * 2020-10-29 2022-05-17 セイコーエプソン株式会社 粗砕装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR345743A (fr) * 1904-08-20 1904-12-09 De La Buire Trémie distributrice à réglage rapide pour presses à boulets
DE3535406A1 (de) * 1985-10-03 1987-04-09 Krupp Polysius Ag Verfahren und anlage zur zerkleinerung von mahlgut

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070903B (fr) * 1958-03-24 1959-12-10
US3174696A (en) * 1962-05-11 1965-03-23 Deere & Co Roller mill
DE3407534A1 (de) * 1984-03-01 1985-09-05 Klöckner-Humboldt-Deutz AG, 5000 Köln Walzenmuehle zur druckzerkleinerung sproeden mahlgutes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR345743A (fr) * 1904-08-20 1904-12-09 De La Buire Trémie distributrice à réglage rapide pour presses à boulets
DE3535406A1 (de) * 1985-10-03 1987-04-09 Krupp Polysius Ag Verfahren und anlage zur zerkleinerung von mahlgut

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2731722A4 (fr) * 2011-07-14 2015-03-04 Univ Melbourne Améliorations apportées à la comminution d'un matériau et/ou l'élimination de liquide d'un matériau
DE102013022206A1 (de) * 2013-12-17 2015-06-18 Khd Humboldt Wedag Gmbh Materialflussklappe für Aufgabevorrichtung einer Rollenpresse
WO2015091085A1 (fr) 2013-12-17 2015-06-25 Khd Humboldt Wedag Gmbh Volet d'écoulement de matière pour dispositif d'alimentation d'une presse à rouleaux
DE102013022206B4 (de) * 2013-12-17 2015-07-30 Khd Humboldt Wedag Gmbh Materialflussklappe für Aufgabevorrichtung einer Rollenpresse
WO2016091264A1 (fr) * 2014-12-10 2016-06-16 Flsmidth A/S Appareil pour le meulage d'un matériau particulaire
US10695765B2 (en) 2014-12-10 2020-06-30 Flsmidth A/S Apparatus for grinding particulate material
CN113117807A (zh) * 2021-04-20 2021-07-16 汪亦冬 一种有色金属冶炼废渣综合化环保处理工艺

Also Published As

Publication number Publication date
ES2044265T3 (es) 1994-01-01
ATE93165T1 (de) 1993-09-15
US5096131A (en) 1992-03-17
EP0386520A3 (fr) 1991-05-29
BR9001130A (pt) 1991-03-05
ZA901230B (en) 1990-11-28
DE3907830A1 (de) 1990-09-13
DE59002354D1 (de) 1993-09-23
EP0386520B1 (fr) 1993-08-18

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