EP0418550A1 - Maschine und Segment zur Kompaktierung und/oder Zerkleinerung von Schüttgut - Google Patents

Maschine und Segment zur Kompaktierung und/oder Zerkleinerung von Schüttgut Download PDF

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Publication number
EP0418550A1
EP0418550A1 EP90115545A EP90115545A EP0418550A1 EP 0418550 A1 EP0418550 A1 EP 0418550A1 EP 90115545 A EP90115545 A EP 90115545A EP 90115545 A EP90115545 A EP 90115545A EP 0418550 A1 EP0418550 A1 EP 0418550A1
Authority
EP
European Patent Office
Prior art keywords
roller
base body
segments
segment
recess
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
EP90115545A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0418550B1 (de
Inventor
Gerhard Dipl.-Ing. Kästingschäfer
Bernhard Dipl.-Ing. Peterwerth
Helmut Krumme
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
Publication of EP0418550A1 publication Critical patent/EP0418550A1/de
Application granted granted Critical
Publication of EP0418550B1 publication Critical patent/EP0418550B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
    • B30B11/165—Roll constructions
    • 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
    • B02C4/30—Shape or construction of rollers

Definitions

  • the invention relates to a machine for compacting and / or comminuting bulk material in accordance with the preamble of claim 1, and to a segment for use in such a machine in accordance with the preamble of claim 12.
  • Two rollers which can be pressed against one another at high pressure contain a roller base and a roller shell detachably connected to the roller base and composed of individual segments, the individual segments each having a single projecting shoulder on the front longitudinal side in the direction of rotation of the roller and on the longitudinal side rearward in the direction of rotation of the roller each have a single recess.
  • the invention is therefore based on the object of simplifying the construction of the segment while at the same time guaranteeing the safety of tipping in the machine presupposed in the preamble of claim 1 and the segment presupposed in the preamble of claim 12.
  • the solution according to the invention is characterized - with almost the same level of stability against tipping - by a significantly simplified production, since the individual segments are produced as simple cast parts and all segment surfaces can be machined in a simple manner.
  • the roller 1 shown in FIG. 1 contains a roller base body 3 arranged on a shaft 2 and a roller shell detachably connected to the roller base body 3 and composed of individual segments 4.
  • a roller base body 3 arranged on a shaft 2 and a roller shell detachably connected to the roller base body 3 and composed of individual segments 4.
  • two clamping elements 5 acting laterally on the segments are provided.
  • the contact surfaces of the roller base body 3 and the segments 4 are designed as cylindrical surfaces.
  • the individual segments 4 each have a single projection 4a projecting in the circumferential direction on the front long side in the direction of rotation and a single complementarily designed recess 4b on the longitudinal side rearward in the direction of rotation of the roller, with shoulder 4a and recess 4b symmetrical to the axis perpendicular to the roller axis 1a
  • the central plane 4c of the segment 4 are arranged (cf. also FIGS. 4 to 8).
  • the individual segments 4 In the circumferential direction, the individual segments 4 have the partial surfaces 4f and 4g on the side of the shoulder 4a and the partial surfaces 4h and 4b on the side of the recess 4b 4i on.
  • the generating lines of the outer surfaces of the segments which point in the circumferential direction and which are formed from the partial surfaces 4f and 4g and also 4h and 4i run radially to the roller axis 1a.
  • a clearance of up to approx. 10 mm, preferably a clearance of the order of magnitude of the casting tolerance, for example 2 to 5 mm, can be present between adjacent segments 4 of the roll shell.
  • segments 4 and. the roller base 3 each provided with laterally projecting lugs 4d and 3a.
  • U-shaped clamping elements 5 acting on the lugs 4d and 3a in the axial direction on both sides are clamped together by means of clamping screws 6.
  • the clamping screws 6 are received in axially extending grooves 3b of the roller body 3.
  • all segments 4 are fastened on the roller base body 3 with two clamping elements 5 each.
  • other fastening means are also possible within the scope of the invention, such as, for example, shrink rings, feather keys, radially arranged screws or spring clips pretensioned with bolts.
  • Feather keys are provided for additional fixing of the segments 4 in the direction of rotation.
  • two grooves 3c are provided adjacent to the two end faces of the roller base body 3 per segment 4.
  • the length of the grooves 3c corresponds approximately to the length of the regions of the longitudinal side of the segment 4 adjoining the shoulder 4a.
  • the parallel keys 7 inserted into the grooves 3c have bevelled surfaces 7a in the direction of rotation of the roller 1.
  • the edge in the area laterally next to the shoulder 4a and the bearing surface of the segment 4 on the roller base 3 is correspondingly bevelled complementary.
  • the segments 4 are held on the roller base 3 by the clamping elements 5. In the case of extreme loads, relative movements can occur between the segments 4 and the roller base body 3, the segments on the roller base body trying to twist against the running direction of the roller. These relative movements are prevented by the parallel keys 7.
  • the segments 4 are supported on the radially extending surfaces of the parallel keys 7.
  • the parallel keys (surfaces 7a) are chamfered for reasons of space, whereby the chamfered surfaces are always unloaded.
  • the projection 4a and the recess 4b of the segment 4 shown in FIG. 4 have a rectangular outer contour when viewed in the radial direction.
  • the recess 4b is limited by two lateral projections 4e, viewed in the axial direction.
  • the axial length of extension 4a and recess 4b in the area of the root of the extension or the mouth of the recess corresponds to approximately half the axial length L. of the segment 4.
  • the depth of extension 4a and recess 4b measured in the circumferential direction corresponds to a circumferential angle x of 3 to 15 °, preferably 5 to 10 °.
  • the depth of the lugs measured in the circumferential direction expediently corresponds approximately to the radian of the area between the rollers in which the grinding pressure acts.
  • the durability of segmented rollers is decisively influenced by the surface pressure between the segments 4 and the roller body 3. (Tilting of the segments).
  • the distribution of the surface pressure in the support surface between the segments 4 and the roller base 3 is influenced by the non-uniform pressure distribution in the gap between two rollers 1 in the direction of the roller axis 1a and by the orientation of the resulting grinding force to the surface of the segment 4. Due to the orientation of the resulting force to the surface of segment 4, the maximum surface pressures and the maximum tilting moment occur on the segment side emerging from the gap, the pressure in the gap being greater over the axial length of the segment in the central region than in the edge regions.
  • the different compressive stresses and the different tilting moments on the segment sides entering and leaving the gap are taken into account by the shape and arrangement of the segments 4 on the roller base body 3.
  • the segments 4 are arranged in the direction of rotation (arrow 8) on the roller base body 3 in such a way that the segment side with the projecting shoulder 4a first runs into the gap formed by two rollers 1.
  • the most heavily loaded part of the segment 4 in the area of the recess 4b (approx. 65% of the total force) runs out of the gap as the first part of the rear longitudinal side of the segment.
  • the side lugs 4e act like supports and thereby avoid impermissibly high surface pressures and the tilting of the segments.
  • the subsequent runout of the lugs 4e is not critical due to the lower pressure load (approx. 35% of the total force).
  • the compressive stress on the incoming segment side i.e. the longitudinal side at the front in the direction of rotation of the roller) is significantly lower due to the direction of action of the grinding force and is therefore not critical.
  • FIGS. 5 to 8 the same reference numerals as in FIG. 4 are used for the same parts.
  • the approach 4a and the recess 4b of the segment 4 are formed with a circular outer contour.
  • the projection 4a and the recess 4b have a trapezoidal outer contour.
  • the segments 4 shown in FIGS. 7 and 8 have an outer contour which consists of an arcuate center piece and straight sections adjoining it on both sides. The straight sections then merge into the two lateral axially parallel areas in rounded edges.
  • the approach 4a or the recess 4b of the segment shown in FIG. 8 are somewhat narrower in the axial direction compared to the exemplary embodiment in FIG. Otherwise, the dimensions according to FIG. 4 also apply to the exemplary embodiments in FIGS. 5 to 8.
  • the releasably composed of individual segments 4 roller shell makes it possible that individual or all segments can be replaced if necessary. For this purpose, only the corresponding clamping elements 5 have to be removed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Crushing And Grinding (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Press Drives And Press Lines (AREA)
  • Machine Tool Units (AREA)
EP90115545A 1989-08-23 1990-08-14 Maschine und Segment zur Kompaktierung und/oder Zerkleinerung von Schüttgut Expired - Lifetime EP0418550B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3927884A DE3927884A1 (de) 1989-08-23 1989-08-23 Maschine zur kompaktierung und/oder zerkleinerung von schuettgut
DE3927884 1989-08-23

Publications (2)

Publication Number Publication Date
EP0418550A1 true EP0418550A1 (de) 1991-03-27
EP0418550B1 EP0418550B1 (de) 1993-10-13

Family

ID=6387724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90115545A Expired - Lifetime EP0418550B1 (de) 1989-08-23 1990-08-14 Maschine und Segment zur Kompaktierung und/oder Zerkleinerung von Schüttgut

Country Status (9)

Country Link
EP (1) EP0418550B1 (pt-PT)
AU (1) AU619416B2 (pt-PT)
BR (1) BR9004168A (pt-PT)
CA (1) CA2023003C (pt-PT)
DE (2) DE3927884A1 (pt-PT)
ES (1) ES2045687T3 (pt-PT)
FI (1) FI94319C (pt-PT)
NO (1) NO178218C (pt-PT)
ZA (1) ZA906241B (pt-PT)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020515A1 (fr) * 1991-05-21 1992-11-26 Crine Rene Presse a rouleaux, blindages amovibles et leur procede de montage
DE19606671A1 (de) * 1996-02-22 1997-08-28 Krupp Polysius Ag Vorrichtung zum Zerkleinern und/oder Kompaktieren von Schüttgut
DE19709263A1 (de) * 1997-03-06 1998-09-10 Krupp Polysius Ag Walze
WO2014170076A1 (de) * 2013-04-17 2014-10-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze
WO2014170080A1 (de) * 2013-04-17 2014-10-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400797A1 (de) * 1994-01-13 1995-07-20 Krupp Polysius Ag Mahlwerkzeug für Walzenmühlen
DE4424440A1 (de) * 1994-07-12 1996-01-18 Kloeckner Humboldt Deutz Ag Walze für eine Hochdruck-Walzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes
DE19614999A1 (de) * 1996-04-16 1997-10-23 Krupp Polysius Ag Mahlwalze
DE19736087A1 (de) * 1997-08-20 1999-02-25 Kloeckner Humboldt Wedag Walze für eine Hochdruck-Walzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes
DE102007032261A1 (de) 2007-07-11 2009-01-15 Khd Humboldt Wedag Gmbh Walze für eine Hochdruckwalzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes
DE102021114404B4 (de) * 2021-06-03 2024-07-04 Takraf Gmbh Segmentwalze, insbesondere zur Zerkleinerung oder Kompaktierung von Schüttgut

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1815599A1 (de) * 1968-12-19 1970-07-02 Kloeckner Humboldt Deutz Ag Walzenmuehle oder Walzenbrikettpresse fuer heisse Schuettgueter
USRE28581E (en) * 1970-11-10 1975-10-28 Roller-type press
US4097215A (en) * 1977-05-12 1978-06-27 K. R. Komarek, Inc. Segmented briquetting roll

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1604744A (en) * 1926-01-12 1926-10-26 Carl W Finger Crushing roll
DE960953C (de) * 1952-10-18 1957-03-28 Aulmann & Beckschulte Brechwalze mit mehrteiligen Brechringen
DE1247922B (de) * 1958-04-24 1967-08-17 Kloeckner Humboldt Deutz Ag Walzenbrikettpresse
DE1300049B (de) * 1960-06-14 1969-07-24 Komarek Greaves And Company Brikettierwalze fuer eine Walzenbrikettpresse
DE2229811A1 (de) * 1972-06-19 1974-01-17 Kloeckner Humboldt Deutz Ag Walzwerk
JPS5267078A (en) * 1975-12-02 1977-06-03 Kawasaki Heavy Ind Ltd Roll core for roll press
DE2649801C3 (de) * 1976-10-29 1980-08-07 Bepex Gmbh, 7105 Leingarten Segmentwalze für eine Brikettieroder Kompaktierwalzenpresse
DE3017962C2 (de) * 1980-05-10 1982-04-22 Maschinenfabrik Köppern GmbH & Co KG, 4320 Hattingen Walzenpresse zum Kompaktieren und Brikettieren von Schüttgütern

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1815599A1 (de) * 1968-12-19 1970-07-02 Kloeckner Humboldt Deutz Ag Walzenmuehle oder Walzenbrikettpresse fuer heisse Schuettgueter
USRE28581E (en) * 1970-11-10 1975-10-28 Roller-type press
US4097215A (en) * 1977-05-12 1978-06-27 K. R. Komarek, Inc. Segmented briquetting roll

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020515A1 (fr) * 1991-05-21 1992-11-26 Crine Rene Presse a rouleaux, blindages amovibles et leur procede de montage
FR2676659A1 (fr) * 1991-05-21 1992-11-27 Crine Rene Presse a rouleaux, blindages amovibles et leur procede de montage.
DE19606671A1 (de) * 1996-02-22 1997-08-28 Krupp Polysius Ag Vorrichtung zum Zerkleinern und/oder Kompaktieren von Schüttgut
DE19709263A1 (de) * 1997-03-06 1998-09-10 Krupp Polysius Ag Walze
WO2014170076A1 (de) * 2013-04-17 2014-10-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze
WO2014170080A1 (de) * 2013-04-17 2014-10-23 Maschinenfabrik Köppern Gmbh & Co. Kg Presswalze
RU2634528C2 (ru) * 2013-04-17 2017-10-31 Машиненфабрик Кёпперн Гмбх Унд Ко. Кг Отжимной вал

Also Published As

Publication number Publication date
ZA906241B (en) 1991-06-26
FI94319C (fi) 1995-08-25
FI904177A0 (fi) 1990-08-23
DE59003076D1 (de) 1993-11-18
NO903695L (no) 1991-02-25
NO903695D0 (no) 1990-08-22
EP0418550B1 (de) 1993-10-13
NO178218B (no) 1995-11-06
ES2045687T3 (es) 1994-01-16
BR9004168A (pt) 1991-09-03
FI94319B (fi) 1995-05-15
NO178218C (no) 1996-02-14
AU6103690A (en) 1991-06-06
CA2023003A1 (en) 1991-02-24
AU619416B2 (en) 1992-01-23
CA2023003C (en) 1994-10-25
DE3927884A1 (de) 1991-02-28

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