EP0514432B1 - Presse ou broyeur a cylindres - Google Patents

Presse ou broyeur a cylindres Download PDF

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Publication number
EP0514432B1
EP0514432B1 EP91903660A EP91903660A EP0514432B1 EP 0514432 B1 EP0514432 B1 EP 0514432B1 EP 91903660 A EP91903660 A EP 91903660A EP 91903660 A EP91903660 A EP 91903660A EP 0514432 B1 EP0514432 B1 EP 0514432B1
Authority
EP
European Patent Office
Prior art keywords
roll
rolls
walls
air
press according
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.)
Expired - Lifetime
Application number
EP91903660A
Other languages
German (de)
English (en)
Other versions
EP0514432A1 (fr
Inventor
Werner Plagemann
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.)
Maschinenfabrik Koeppern GmbH and Co KG
Original Assignee
Maschinenfabrik Koeppern 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 Maschinenfabrik Koeppern GmbH and Co KG filed Critical Maschinenfabrik Koeppern GmbH and Co KG
Publication of EP0514432A1 publication Critical patent/EP0514432A1/fr
Application granted granted Critical
Publication of EP0514432B1 publication Critical patent/EP0514432B1/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
    • 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
    • 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
    • B30B15/0017—Deairing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/903—Pelleters
    • Y10S100/907—Rotary

Definitions

  • the invention relates to a roller press or mill according to the preamble of claim 1.
  • a chamber is arranged vertically above the roller gap in the filling shaft, which projects with its lower end, which is designed to be permeable to air, into the roller gap and which passes through the end walls of the feed shaft through is connected to air outlet lines.
  • air outlet lines Such within the hopper to orderly ventilation devices have the disadvantage that they hinder the flow of material.
  • the very small air inlet openings of the order of 1/10 mm and smaller required at the lower end of the chamber easily lead to blockages of the openings, which render the device ineffective.
  • a roller mill is also known (DE-A-17 57 093, B1), in which the material to be shredded is fed in a steady stream, which is in a chute that ends at a distance above the roller gap up to approximately the circumferential speed the rollers accelerated. Air entrained here should escape above the rollers and be returned to the chute through a duct provided with blinds at the top to prevent the material in the chute from being braked by the air resistance. Air brought in with the crop stream is extracted through openings above the nip to prevent dusting.
  • the object of the invention is to design a roller press of the generic type in such a way that reliable ventilation is achieved without problems due to clogging of the paths through which the air can escape.
  • the solution according to Invention entrain the pressed material escaping through the open passages into the chambers. This can settle in the chambers. Only the residual dust needs to be separated from the air to be removed from the chambers.
  • rollers 2, 4 lying horizontally next to one another are shown of the roll press.
  • These rollers are provided with their roller journals 2 ', 2' 'or 4', 4 '' with bearings with which they are mounted in bearing housings which are arranged in the press frame, not shown, between an upper and a lower frame part.
  • One of the rollers is usually displaceable with its bearing housings against resilient support.
  • the roller gap 8 is adjustable in a known manner in such roller presses, which are also used as roller mills.
  • the feed angle ⁇ 0 depends on the roller diameter.
  • the roller press is provided with a filling shaft 6, which extends into the nip 8 with its lower end.
  • the filling shaft is shown here with a forced conveyance of the goods by means of a filling screw 10.
  • the prepgut is introduced into the filling shaft 6 via a lateral feed 12.
  • a plurality of filling screws 10 are arranged next to one another in the axial direction of the rollers 2, 4, the screws rotating in respective housing sections 14, which each form the lower end of the filling shaft 6.
  • the upper part of the filling shaft 6 can be common to all filling shafts lying next to one another, it being possible for one or more feed shafts 12 to be provided.
  • the filling shaft 6 can also be designed in a known manner as a filling shaft of a gravity allocation, the material then being fed vertically into this filling shaft from above.
  • 6 chambers 16, 18 are provided on both sides of the filling shaft. These chambers extend essentially axially parallel over the width of the pressing surfaces of the rollers 2, 4.
  • the lower region 20, of the chambers 16, 18 is delimited by the walls 22, 24 of the lower region of the filling shaft 6 which extend essentially axially parallel.
  • This wall 22 or 24 can be a straight wall, but it can also be corrugated in accordance with the outer contour of the lower region of the screw housing forming the lower end of the filling shaft 6.
  • the walls 22, 24 delimit at their lower end passages 28, 30 extending essentially over the width of the pressing surfaces of the rolls between themselves and the outer circumference of the rolls 2, 4.
  • the height of the passages can be adjusted by height-adjustable slides 21, 23 , which are shown schematically in the drawing and here are arranged on the outside of the filling shaft wall 22 or 24 adjustable in height.
  • the chambers 16, 18 are closed at their axial ends. This closure can be sealed at least in the lower area, for example, by the usual end wall sealing plates for the nip.
  • the chambers which are closed by cover walls 32, 34, have air outlets to which dust separators 35, 38 are preferably closed.
  • These dust separators can be mechanical dust separators 38, for example those with which the dust is separated by centrifugal force, for example cyclone filters or Vortex chamber filter, as shown in the drawing on the right.
  • air lines 36 are connected to the chambers 16, 18, via which the connection to centrifugal filters 38 or the like is established, to which fans 40 can be connected upstream or downstream.
  • filters 35 with a filter medium for example filter cloths or the like, can also be provided, as shown on the left in the drawing.
  • Filters 35 with a filter medium are each connected to openings in the covers 34. A plurality of these can be provided distributed over the length of the chambers, as shown in FIG. 2.
  • the chambers 16, 18 described above operate as follows.
  • Air which is conveyed from the material to be pressed into the nip 8, that is to say, for example, is contained in the material to be pressed, which at the lower end of the filling screw 10 passes from the filling shaft 6 into the nip 8, should, as far as possible, compress the material by the roller after reaching the feed angle ⁇ 0 of the roller press, which is essentially dependent on the roll diameter, are driven out of the pressed material. It can escape laterally over a short distance and passes through the passages 28, 30 into the chambers 16 and 18. Pressed material entrained by this air can also pass into the chambers 16, 18.
  • Pressed material that has entered the chambers 16, 18 can be drawn back into the nip by the rolls 2, 4, where it is then compressed in the nip with the remaining pressed material. It should be noted that the passage of pressed material into the chambers 16, 18 is counteracted in each case by the roller surfaces rotating counter to the entry into the chamber via the passages 28, so that excessive escape of pressed material into the chambers 16, 18 can be prevented.
  • the chambers can be provided with level sensors, not shown in the drawing. These filling level sensors can then be used to regulate the supply of material into the filling shaft 6, by means of which the supply is briefly reduced, so that the material to be pressed located in the chambers 16, 18 is drawn off from the rollers 2, 4.
  • the conveying of the pressed material out of these combs 16, 18 takes place here, as also during normal operation, by gravity and by the normally profiled surfaces of the rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Press Drives And Press Lines (AREA)
  • Crushing And Grinding (AREA)

Abstract

Une presse ou broyeur à cylindres comprend deux cylindres adjacents (2, 4) pourvus de surfaces de compression qui coopèrent l'une avec l'autre et montés dans des logements entre une poutre en caisson supérieure et inférieure, un des cylindres étant mobile. Un distributeur de produits comprend au moins un puits de remplissage (6) avec des parois (22, 24) parallèles aux axes des cylindres et faisant saillie dans l'intervalle (8) entre les cylindres. Un organe d'évacuation de l'air qui pénètre avec le produit dans l'intervalle entre les cylindres est pourvu à la hauteur de l'intervalle entre les cylindres d'orifices d'admission d'air qui s'ouvrent dans une chambre collectrice d'air en communication avec des sorties d'air. Des deux côtés des parois du puits de remplissage parallèles aux axes sont agencées des chambres latérales (16, 18) qui s'étendent essentiellement sur toute la longueur des surfaces de compression des cylindres et qui sont fermées à leurs extrémités. Les chambres sont mises en communication avec l'intervalle entre les cylindres par un passage (28, 30) qui s'étend entre les surfaces de compression sur la circonférence des cylindres et l'extrémité inférieure des parois adjacentes aux parois du puits de remplissage. Les chambres sont pourvues de sorties d'air (34, 36).

Claims (9)

  1. Presse ou broyeur à cylindres, à deux cylindres presseurs (2, 4), juxtaposés, aux surfaces actives à action combinée et logés dans des logements de paliers qui sont disposés entre les poutrelles supérieure et inférieure d'un bâti, et dont l'un est coulissant ;
       comportant un dispositif de chargement avec, au minimum, un puits de remplissage (6) dont les parois (22, 24), parallèles aux axes des cylindres, se prolongent jusque dans l'espace d'écartement (8) de ces cylindres,
       et comportant des accessoires necessaires à l'évacuation de l'air introduit avec la matière à presser dans cet écartement entre les cylindres, accessoires qui sont prévus avec des ouvertures d'entrée d'air (28, 30) dans la zone d'écartement des cylindres, ces ouvertures débouchant dans un collecteur d'air (16,18), lui-même relié à des orifices de sortie d'air (34, 30).
       caracterisé en ce que
       des chambres (16, 18) sont disposées de chaque côté des parois (22, 24) du puits de remplissage, parallèles aux axes des cylindres qui partent de l'écartement entre les cylindres, couvrent toute la largeur des surfaces actives des cylindres (2, 4) et sont fermées à leur extremité;
       en ce que chacune des chambres (16, 18) est reliée à l'écartement des cylindres 8, par un passage (28, 30) entre les surfaces actives à la périphérie des cylindres et l'extrémité inférieure des parois contiguës au puits de remplissage (22, 24);
       et en ce que les chambres (16, 18) comportent des sorties d'air situées à distance des passages (28, 30).
  2. Presse à cylindres selon la revendication 1, caracterisée en ce que l'une des parois des chambres (16, 18) est formée, tout au moins dans la zone contiguë au passage (28,30), par la paroi contiguë du puits de remplissage (22,24) et en ce que la paroi (26,27) des chambres (16,18) parallèle à celle-ci agit à son extrémité inférieure conjointement avec la périphérie des cylindres (2,4).
  3. Presse à cylindres selon l'une des revendications 1 ou 2, caractérisée en ce que les sorties d'air des chambres (16, 18) sont reliées à des séparateurs de poussières (35, 38).
  4. Presse à cylindres selon la revendication 3, caracterisée en ce que sont prévus comme séparateurs de poussières des séparateurs de poussières centrifuges (38).
  5. Presse à cylindres selon la revendication 3, caractérisée en ce que sont prévus comme séparateurs de poussières des filtres (35) avec un élément filtrant.
  6. Presse à cylindres selon la revendication 1, caractérisée en ce qu'est prévu comme système de chargement un puits de remplissage pour alimentation par gravité.
  7. Presse à cylindres selon la revendication 1, caractérisée en ce qu'est prévu comme système de chargement au moins une vis de remplissage (10).
  8. Presse à cylindres selon la revendication 7, caractérisée en ce que plusieurs vis de remplissage (10) sont disposées côte à côte dans le sens axial des cylindres (2, 4).
  9. Presse à cylindres selon la revendication 1, caractérisée en ce que des tiroirs (21, 23) mobiles sont prévus, grâce auxquels la hauteur des passages (28, 30) est réglable.
EP91903660A 1990-02-05 1991-02-01 Presse ou broyeur a cylindres Expired - Lifetime EP0514432B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4003342 1990-02-05
DE4003342A DE4003342A1 (de) 1990-02-05 1990-02-05 Walzenpresse oder -muehle

Publications (2)

Publication Number Publication Date
EP0514432A1 EP0514432A1 (fr) 1992-11-25
EP0514432B1 true EP0514432B1 (fr) 1994-03-30

Family

ID=6399447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91903660A Expired - Lifetime EP0514432B1 (fr) 1990-02-05 1991-02-01 Presse ou broyeur a cylindres

Country Status (7)

Country Link
US (1) US5271319A (fr)
EP (1) EP0514432B1 (fr)
JP (1) JPH066240B2 (fr)
BR (1) BR9105991A (fr)
DE (2) DE4003342A1 (fr)
DK (1) DK0514432T3 (fr)
WO (1) WO1991011320A1 (fr)

Families Citing this family (12)

* 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
FR2803396B1 (fr) 1999-12-30 2002-02-08 Commissariat Energie Atomique Procede de formation d'un microrelief concave dans un substrat, et mise en oeuvre du procede pour la realisation de composants optiques
GB2367030B (en) * 2000-09-20 2002-12-31 Reckitt Benckiser Nv Method and apparatus for manufacturing multi-layer press molded bodies
ITTO20070029A1 (it) * 2007-01-18 2008-07-19 Sasil S P A Cilindraia ad alta compressione per la macinazione, a livelli di finezza molto spinti, di minerali naturali e di prodotti solidi inorganici.
US8739962B2 (en) * 2009-12-15 2014-06-03 Exxonmobil Research And Engineering Company Active solids supply system and method for supplying solids
BR112012021678B1 (pt) * 2010-04-19 2021-04-06 Nippon Steel Corporation Dispositivo de parafuso push in e máquina de moldagem por rolo
JP6391678B2 (ja) 2013-06-03 2018-09-19 ビューラー・アクチエンゲゼルシャフトＢｕｅｈｌｅｒ ＡＧ ローラ対、測定装置、製品処理設備及び方法
DE102013018325B4 (de) * 2013-10-31 2019-03-21 Khd Humboldt Wedag Gmbh Hochdruckwalzenpresse mit Mahlgutentlüftung und Verfahren zur Vermeidung von Vibrationen bei der Aufgabe von Mahlgut
WO2019159119A1 (fr) 2018-02-15 2019-08-22 Flsmidth A/S Mécanisme et procédé d'alimentation de dispositif de broyage
CN112757681A (zh) * 2021-02-03 2021-05-07 陈船 一种化妆品生产用植物液汁提取机
DE102022208371A1 (de) 2022-08-11 2024-02-22 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Herstellung lösemittelfreien Elektrodenmaterials in Filmform
DE102022211340A1 (de) 2022-10-26 2024-05-02 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Herstellung lösemittelfreier Elektroden

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Also Published As

Publication number Publication date
JPH066240B2 (ja) 1994-01-26
DK0514432T3 (da) 1994-05-09
JPH05503880A (ja) 1993-06-24
DE4003342A1 (de) 1991-08-08
DE59101285D1 (de) 1994-05-05
WO1991011320A1 (fr) 1991-08-08
US5271319A (en) 1993-12-21
EP0514432A1 (fr) 1992-11-25
DE4003342C2 (fr) 1992-06-04
BR9105991A (pt) 1992-11-10

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