EP2862631A1 - Dispositif destiné au traitement de matériaux de chargement coulants - Google Patents

Dispositif destiné au traitement de matériaux de chargement coulants Download PDF

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Publication number
EP2862631A1
EP2862631A1 EP20140188586 EP14188586A EP2862631A1 EP 2862631 A1 EP2862631 A1 EP 2862631A1 EP 20140188586 EP20140188586 EP 20140188586 EP 14188586 A EP14188586 A EP 14188586A EP 2862631 A1 EP2862631 A1 EP 2862631A1
Authority
EP
European Patent Office
Prior art keywords
rollers
walls
shaft end
feed
transverse
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
EP20140188586
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German (de)
English (en)
Other versions
EP2862631B1 (fr
Inventor
Hartmut Pallmann
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.)
Pallmann Maschinenfabrik GmbH and Co KG
Original Assignee
Pallmann Maschinenfabrik GmbH and Co KG
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 Pallmann Maschinenfabrik GmbH and Co KG filed Critical Pallmann Maschinenfabrik GmbH and Co KG
Publication of EP2862631A1 publication Critical patent/EP2862631A1/fr
Application granted granted Critical
Publication of EP2862631B1 publication Critical patent/EP2862631B1/fr
Active 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
    • B02C4/30—Shape or construction of rollers
    • 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
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • 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
    • B02C4/283—Lateral sealing shields
    • 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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/005—Roll constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • the invention relates to a device for processing pourable feed material according to the preamble of patent claim 1.
  • Such devices are assigned to the field of mechanical processing technology.
  • the basic principle of crop processing results from the interaction of counter-rotating rollers, which form a narrow nip.
  • the pourable feed material is subjected to high pressure and shear forces as it passes through the gap.
  • the region lying upstream of the nip thus serves to supply the feedstock to the processing zone, the downstream region of the Gutaustrag from the device after material processing.
  • the feed may be of a variety of nature, ranging from relatively hard materials such as minerals to soft feed in the form of chemicals, food, rubber, plastic, and the like.
  • Roller mills are generally known having a housing consisting of longitudinal and transverse walls, in which the rollers extend from one transverse wall to the opposite transverse wall, where they are rotatably mounted on the outer sides thereof in bearings.
  • the rollers in the in the DE 197 15 210 A1 disclosed mill with their effective in material processing lateral surfaces while maintaining a sealing gap up to the transverse walls of the housing.
  • the rollers moving in the course of the comminution relative to the transverse walls take along the feed material on their circular path, which causes friction on the fixed transverse walls.
  • the consequences are on the one hand a considerable wear of the inside of the transverse walls and on the other hand a heat input into the transverse walls themselves, since a part of the supplied drive energy is converted into frictional heat. This excess heat energy is undesirable, especially in the area of the bearings of the rollers, so that, if necessary, additional measures for their cooling must be taken, which, however, makes the machine design more expensive.
  • the invention has the object to improve known devices in terms of their wear and thermal stress.
  • the basic idea of the invention is to shift the connection area of the rotating rollers to stationary machine parts axially inwards in the direction of the center of the housing. This is achieved according to the invention by a Zu glassschachtschacht whose limitation in the axial direction does not take place through the transverse walls of the machine housing, but by providing well front walls, which are offset axially to create a free space.
  • the shaft end walls are thus arranged at a clear axial distance from the transverse walls.
  • the free space for cooling the device can be flowed through by cooling air which is supplied, for example, through openings in the housing, in particular in the transverse wall. With a flow through the free space from top to bottom, the cooling air also supports the flow of material. Due to the reduced thermal stress, it is possible to arrange the bearings for the rollers without risk of thermal overload on the transverse walls of the device, which not only greatly simplifies the construction, but also makes it more compact.
  • the invention also includes embodiments in which the shaft end walls overlap radially with the end faces of the rollers to form a sealing gap and connect in this way to the rollers, with the advantage that the length of the rollers as short as possible and thus the device can be made very compact ,
  • the shaft end walls in the radial direction obtuse adhering to a sealing gap on the lateral surface of the rollers, that is, that the rollers extend below the shaft end walls.
  • This opens up the possibility of arranging the roll ends in the area free of feed material, so that this area is not exposed to the action of the feed material during material processing.
  • the shell segments are attached only in the end of the rollers, this fact is particularly effective for carrying, since the fasteners remain intact in the protected area and therefore can be solved easily when changing the shell segments.
  • FIGS. 1 to 4 show the structural design of a device according to the invention. It can be seen a machine base frame 1, which is formed essentially by plane-parallel opposite transverse walls 2, the laterally spaced upper longitudinal beams 3 and with respect to these outwardly offset, lower Longitudinal members 4 are interconnected. To form a housing, the longitudinal sides of the machine base frame 1 are covered with side panels 5 which adjoin the upper and lower longitudinal beams 3, 4. The side panels 5 are removable, so that the accessibility to the housing interior on each longitudinal side of the device between the upper longitudinal spar 3 and lower longitudinal spar 4 is given.
  • the machine base frame 1 serves to receive a rolling mill 6, which is formed in the present embodiment by a pair of rollers with axially parallel juxtaposed, counter-rotating rollers 7 and 8, whose axes of rotation are designated by the reference numerals 9 and 10.
  • a rolling mill 6 which is formed in the present embodiment by a pair of rollers with axially parallel juxtaposed, counter-rotating rollers 7 and 8, whose axes of rotation are designated by the reference numerals 9 and 10.
  • By maintaining a clear radial distance between the two rollers 7, 8 results in a processing zone forming nip.
  • For rotatably supporting the rollers 7, 8, these are guided with their stub shafts 11 through openings in the transverse walls 2, where they are held outside of the housing in bearings, which will be explained in more detail in detail.
  • the rollers 7, 8 each have a solid roller base body 12, which corresponds in cross-section to an equilateral hexagon, wherein each side of the hexagon forms a flat bearing surface 13 in the axial direction.
  • the effective for material processing lateral surface 14 of the rollers 7 and 8 is formed by a number of segments 15, which are mounted in an axially parallel position side by side on the roller body 12.
  • a segment 15 lies with its underside 16 on in each case one bearing surface 13 of the roller base body 12.
  • the top 17 of a segment 15 may be provided with a profiling.
  • In the circumferential direction form adjacent segments 15 with their axially extending longitudinal edges butt joints 19, resulting in a closed over the circumference and length of a roller 7, 8 lateral surface 14 results.
  • rollers 7, 8 are subdivided into a central portion 20, which forms the effective lateral surface 14 and is provided with a profiling, and two short end portions 21, which serve to attach the segments 15 to the roll ends.
  • a cross section in the region of the end portions 21 shows FIG. 3 , from which it is apparent that each segment 15 is stretched on the bearing surface 13 of the roller base body 12 only in the region of the end sections 21 by means of screws 22 arranged in pairs.
  • the screw heads are countersunk in stepped holes in the segment 15 arranged.
  • An alternative embodiment for this purpose consists of a clamping ring, which is made with undersize relative to the circumference of the end portion 21 and is pressed axially onto the end portion 21.
  • the width of the clamping ring corresponds to a maximum of the axial length of the respective end portion 21.
  • the clamping ring may have a circumferential plate flange, which acts as a stop when pressing and limits the Aufpresstiefe.
  • the interlocking means consist of an axially extending fitting groove 23 in the bearing surface 13 and a matching groove 24 in the underside 16 of the segments 15.
  • a fitting strip 25 is inserted in a form-fitting manner on the one hand causes a centering of the segments 15 on the bearing surface 13 and on the other hand represents a force-transmitting toothing between segments 15 and roller body 12.
  • the region of the device located upstream of the rolling mill 6 serves to supply the feedstock to the rolls 7 and 8 and is formed by a feed chute 18.
  • the feed chute 18 is delimited by two vertical, transversely parallel, plane-parallel chute longitudinal walls 26, which are fastened by their upper edge along an upper longitudinal spar 3, respectively. With its lower edge, the shaft longitudinal walls 26 end approximately at the upper vertex of the rollers 7 and 8, which allows a high degree of filling of the feed chute 18, without any feed material being ejected by the rotating rollers 7, 8.
  • the axial width of the free space 49 is at least 2 cm, most preferably at least 3 cm or 5 cm, on the one hand to achieve a sufficient thermal separation of the shaft end walls 27 of the transverse walls 2 and a trouble-free material drainage and on the other hand to realize a compact device as possible. If necessary, cooling air can be introduced into the free space 49 via an opening 54 arranged in each case in the transverse walls 2.
  • the relative position of the shaft end walls 27 to the rollers 7 and 8 is such that the shaft end walls 27 lie respectively in the solder plane between the central region 20 and the end portions 21 of the rollers 7, 8.
  • the lying in the end portions 21 fasteners for the segments 15 are protected in this way from the harmful effects ofoccasionguts during material processing.
  • rollers 7, 8 are longer than the axial distance of the opposing shaft end walls 27, close the lower edges 29 of the two end walls 27 while maintaining a sealing gap butt against the lateral surface 14 of the rollers 7, 8 and in each case follow the contour of the corresponding Roll peripheral portions from the nip to the well longitudinal walls 26.
  • Each edge 29 has in this way two circular concave edge portions.
  • the shaft end walls 27 and shaft longitudinal walls 26 are connected along the mutually associated edges.
  • the feed material After passing through the nip, the feed material passes into the region of the product discharge 30 which is enclosed by the cladding 5 and transverse walls 2 and opens downwards, via which the processed product is withdrawn from the device.
  • the transverse walls 2 are each formed reinforced on its outer side.
  • the reinforcement comprises on each transverse wall 2 above all a horizontal upper flange 31 and a parallel thereto and arranged vertically spaced lower flange 32, between each of which a fixed bearing 33 for supporting the roller 7 and a displaceable in the direction of the fixed bearing 33 floating bearing 34 for supporting the Roller 8 is arranged.
  • the fixed bearing 33 is thus rigidly secured to the outside of the end walls 2, while the floating bearing 34 is supported by slide bearings 35 on the upper flange 31 and lower flange 32 and therefore can be moved in the direction of the fixed bearing 33, so that the roller 7, the hard roller and the Roller 8 forms the Loswalze.
  • Both fixed bearing 33 and floating bearing 34 are formed as rolling bearings in which the rollers 7, 8 are rotatably supported with their stub shafts 11. In each case one of the two stub shafts 11 of a roller 7, 8 is extended and coupled to rotate the rollers 7 and 8 with a rotary drive, not shown.
  • a clamping device 36 is provided in the lateral region of each transverse wall 2.
  • the tensioning device 36 comprises a support frame with an upper and lower support rod 37, which are arranged in extension of the upper belt 31 and lower belt 32.
  • the straps 31, 32 facing away from the ends of the support rods 37 are fixedly connected to each other via a Joch phenomenon 38.
  • a cylinder piston unit 39 Centered on the inside of the Jochmons 38 and axially parallel between the support rods 37, a cylinder piston unit 39 is arranged, which is supported centrally with its rigid part on the inside of the Jochnomies 38.
  • the movable piston 40 of the cylinder piston unit 39 connects to a transverse web 41, which in turn carries two parallel to the support rods 37 in the direction of the movable bearing 34 biased spring elements 42 which are supported on the floating bearing 34 and this in the direction of the Press fixed bearing 33. With the clamping device 36, an adjustment of the nip by horizontal displacement of the movable bearing 34 can be made.
  • the spring elements 42 consist essentially of two hollow cylindrical parts which are inserted axially into one another. A prestressed spring in the interior of the two hollow cylindrical parts is supported by its ends on the two parts and elastically biases the displaceable part in the direction of the floating bearing 34. In this way, the spring elements 42 embody a protective device in the event of foreign bodies in the feedstock, that can not pass the nip due to their size. By the spring elements 42 allow a lateral deflection of the Loswalze 8 against the biasing force on occurrence of a foreign body caused by the spreading force, the nip widens momentarily and the foreign body is eliminated from the crushing zone.
  • the determination of the nip is carried out by the clamping device 36 in conjunction with adjustable stop means 45, the structure mainly in FIG. 4 is shown.
  • the stop means 45 comprise a first wedge member 48 having a first wedge surface 50 and a second wedge member 46 having a second wedge surface 47.
  • the first wedge member 48 and second wedge member 46 abut each other with their opposing wedge surfaces 50 and 47 forming an inclined sliding surface.
  • the wedge surfaces 50th and 47 opposite sides of the wedge elements 48 and 46 are based on the fixed bearing 33 and the floating bearing 34, wherein the second wedge member 46 is rigidly connected to the movable bearing 34.
  • the first wedge element 48 is displaceably mounted on the fixed bearing 33, for which purpose a sliding bearing 44 with lateral guide surfaces is arranged on the fixed bearing 33.
  • first wedge element 48 can be moved within the linear guide formed by the slide bearing 44 and along the sliding surface formed by the wedge surfaces 50, 47 relative to the second wedge element 46. This is accompanied by a movement of the roller 8 in the direction indicated by the floating bearing 34 direction.
  • the relative movement of the first wedge member 48 relative to the second wedge member 46 is generated by means of a feed unit 43, which essentially comprises a threaded spindle 52 whose upper end is rotatably anchored in a pivot bearing 53 on the top flange 31 and the opposite lower end in a threaded bore 51 in the first Wedge element 48 engages.
  • the threaded spindle 52 may be driven manually or by motor and generates by screwing or unscrewing of the first wedge member 48, a movement of the first wedge member 48 relative to the second wedge member 46 and thus a change in distance between the fixed roller 7 and Loswalze. 8

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP14188586.3A 2013-10-16 2014-10-13 Dispositif destiné au traitement de matériaux de chargement coulants Active EP2862631B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310017134 DE102013017134A1 (de) 2013-10-16 2013-10-16 Vorrichtung zum Bearbeiten von schüttfähigem Aufgabegut

Publications (2)

Publication Number Publication Date
EP2862631A1 true EP2862631A1 (fr) 2015-04-22
EP2862631B1 EP2862631B1 (fr) 2017-11-08

Family

ID=51690283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14188586.3A Active EP2862631B1 (fr) 2013-10-16 2014-10-13 Dispositif destiné au traitement de matériaux de chargement coulants

Country Status (5)

Country Link
US (1) US20150102148A1 (fr)
EP (1) EP2862631B1 (fr)
CA (1) CA2867541C (fr)
DE (1) DE102013017134A1 (fr)
ES (1) ES2649465T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9629390B1 (en) * 2013-01-26 2017-04-25 Turner Innovations Ltd. Sorrel harvesting machine with spaced apart rotating return and cutting drums moving in opposite directions at a throat therebetween
CN112547178A (zh) * 2020-10-31 2021-03-26 山东山矿机械有限公司 一种新型电磁驱动辊式破碎机
CN115155718B (zh) * 2022-07-05 2023-05-30 梅州华立风实业有限公司 一种用于工业固体废弃物回收的预处理装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530254C (de) * 1928-07-02 1931-07-24 Isbecque Todd & Cie Muehle fuer Farben, Emaille, Tinten und andere teigartige oder fluessige Stoffe
DE935525C (de) * 1954-01-01 1955-11-24 Voegele Ag J Einschuettkasten fuer Walzwerke mit zwei und mehr Walzen
DE1156301B (de) * 1960-10-07 1963-10-24 Buehler Ag Geb Einschuettkasten fuer Feinreibwalzenstuehle
DE2900922A1 (de) * 1979-01-11 1980-07-17 Bauermeister Hermann Maschf Quetschwalzwerk, insbesondere zum flockieren von oelsaatbruch
DE3635762A1 (de) * 1986-10-21 1988-04-28 Krupp Polysius Ag Walzenmuehle
EP0396897A2 (fr) * 1989-05-10 1990-11-14 Krupp Polysius Ag Cylindre broyeur
DE19715210A1 (de) 1997-04-11 1998-10-15 Steinecker Maschf Anton Mahlspaltverstellung
DE10012696A1 (de) * 2000-03-15 2001-09-20 Kloeckner Humboldt Wedag Zweiwalzen-Rollenpresse zur Druckbehandlung von Schüttgütern
DE102007032261A1 (de) * 2007-07-11 2009-01-15 Khd Humboldt Wedag Gmbh Walze für eine Hochdruckwalzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes

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US672617A (en) * 1900-08-09 1901-04-23 Thomas A Edison Apparatus for breaking rock.
US2994485A (en) * 1960-05-23 1961-08-01 Hawk Bilt Mfg Corp Roller mill
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US3228441A (en) * 1962-02-23 1966-01-11 American Mach & Foundry Stress plane cutter
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CA1083116A (fr) * 1975-05-12 1980-08-05 Entoleter, Inc. Dispositif de traitement rotatif
US4097215A (en) * 1977-05-12 1978-06-27 K. R. Komarek, Inc. Segmented briquetting roll
US4355765A (en) * 1980-04-23 1982-10-26 Frank Parker Web granulator with nip rollers having hooking members
US4306846A (en) * 1980-07-25 1981-12-22 K. R. Komarek Inc. Briquetting roll and mold segment therefor
US4581798A (en) * 1983-08-13 1986-04-15 Soichi Yamamoto Rice-cleaning roller of a grinding type
US5253816A (en) * 1989-07-20 1993-10-19 Krupp Polysius Ag Material crushing roller construction
US5065947A (en) * 1989-08-07 1991-11-19 Invequest, Inc. Method of shredding carbon paper
US5988544A (en) * 1998-10-08 1999-11-23 Williams, Jr.; Robert M. Rotary grinder cutting block
DK176687B1 (da) * 2007-07-10 2009-02-23 Smidth As F L Valsepresse til formaling af partikelformet materiale
PE20110473A1 (es) * 2008-07-09 2011-07-09 Khd Humboldt Wedag Gmbh Dispositivo de carga con dos compuertas giratorias variables en posicion en forma mutuamente independiente
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EP2540396A1 (fr) * 2011-06-30 2013-01-02 Bühler AG Procédé et dispositif de fabrication de farine et/ou de semoule
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Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530254C (de) * 1928-07-02 1931-07-24 Isbecque Todd & Cie Muehle fuer Farben, Emaille, Tinten und andere teigartige oder fluessige Stoffe
DE935525C (de) * 1954-01-01 1955-11-24 Voegele Ag J Einschuettkasten fuer Walzwerke mit zwei und mehr Walzen
DE1156301B (de) * 1960-10-07 1963-10-24 Buehler Ag Geb Einschuettkasten fuer Feinreibwalzenstuehle
DE2900922A1 (de) * 1979-01-11 1980-07-17 Bauermeister Hermann Maschf Quetschwalzwerk, insbesondere zum flockieren von oelsaatbruch
DE3635762A1 (de) * 1986-10-21 1988-04-28 Krupp Polysius Ag Walzenmuehle
EP0396897A2 (fr) * 1989-05-10 1990-11-14 Krupp Polysius Ag Cylindre broyeur
DE19715210A1 (de) 1997-04-11 1998-10-15 Steinecker Maschf Anton Mahlspaltverstellung
DE10012696A1 (de) * 2000-03-15 2001-09-20 Kloeckner Humboldt Wedag Zweiwalzen-Rollenpresse zur Druckbehandlung von Schüttgütern
DE102007032261A1 (de) * 2007-07-11 2009-01-15 Khd Humboldt Wedag Gmbh Walze für eine Hochdruckwalzenpresse insbesondere zur Gutbettzerkleinerung körnigen Gutes

Also Published As

Publication number Publication date
US20150102148A1 (en) 2015-04-16
CA2867541A1 (fr) 2015-04-16
CA2867541C (fr) 2017-12-05
DE102013017134A1 (de) 2015-04-30
EP2862631B1 (fr) 2017-11-08
ES2649465T3 (es) 2018-01-12

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