EP0490148B1 - Procédé et installation de conduite d'une presse à agglomérés - Google Patents

Procédé et installation de conduite d'une presse à agglomérés Download PDF

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Publication number
EP0490148B1
EP0490148B1 EP91120014A EP91120014A EP0490148B1 EP 0490148 B1 EP0490148 B1 EP 0490148B1 EP 91120014 A EP91120014 A EP 91120014A EP 91120014 A EP91120014 A EP 91120014A EP 0490148 B1 EP0490148 B1 EP 0490148B1
Authority
EP
European Patent Office
Prior art keywords
press
filling container
filling
briquetting
stroke
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
EP91120014A
Other languages
German (de)
English (en)
Other versions
EP0490148A2 (fr
EP0490148A3 (en
Inventor
Siegfried Quante
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.)
Lyndex Recycling Systems Ltd
Original Assignee
Lindemann Maschinenfabrik GmbH
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 Lindemann Maschinenfabrik GmbH filed Critical Lindemann Maschinenfabrik GmbH
Publication of EP0490148A2 publication Critical patent/EP0490148A2/fr
Publication of EP0490148A3 publication Critical patent/EP0490148A3/de
Application granted granted Critical
Publication of EP0490148B1 publication Critical patent/EP0490148B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
    • 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
    • B30B11/005—Control arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
    • B30B9/327—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for briquetting scrap metal

Definitions

  • the invention relates to a method and a device for operating a briquetting press, in particular a vertically operating briquetting press, preferably for small-sized, pourable metal parts, such as waste from machining, with a filling container upstream of a press chamber receiving a press ram.
  • a vertical type of briquetting press of this type has become known from DE-B-1 068 169.
  • a plunger arranged in the funnel-shaped pre-filling chamber there which plunger arranged in front of the filling chamber accommodating the movable plunger, has radially outwardly projecting wings.
  • the wings support the conveyance of the material consisting partly of helically or spirally rolled chips and partly consisting of granular chips of widely differing grain sizes into the press chamber.
  • a known from DE-C-2 313 343, working horizontally briquetting press for compacting metal chips an axially displaceable container which, with a filling opening lying transversely to the longitudinal axis of the press, faces a funnel which feeds the uncompressed material vertically.
  • a matrix is firmly connected to the container, in which the briquette is formed, in that a hydraulic press ram arranged coaxially with the matrix moves into the container and into the matrix and compresses the material in the matrix space, which is closed at the end in the pressing position by a fixed plate. Since the compressibility of small, e.g.
  • pourable metal chips is very different depending on the material - because different toughness and specific weights are available - there are, for example, very large differences in bulk density between steel and aluminum, and the bulk density of the uncompressed material (e.g. brass, copper, Bronze, gray cast iron, aluminum, steel) is decisive for the briquette height, briquettes with correspondingly large height deviations are produced in this press - because the pressure is constant.
  • uncompressed material e.g. brass, copper, Bronze, gray cast iron, aluminum, steel
  • One and the same maximum pressing pressure provides a high briquette with the same filling length or height of the pressing chamber when processing material with a high bulk density, because the pressing die in the die comes to a standstill after a relatively short distance.
  • the container is moved back in this known briquetting press in order to allow the finished briquette to fall out downwards. This results in idle times, because a briquette of lower height falls out of the much earlier Containers out as a briquette of great height.
  • the return of the container is either larger or smaller, ie the idle distance is greater, the lower the briquette.
  • part of a limit switch (contact or stop) is attached to the container and the other part (stop or contact) is attached to the press ram. If low briquettes are produced, the ram moves deep into the die, which also reduces the distance between the stop on the container and the limit switch. In order to let the briquette fall out, the container is then moved back - with the press ram remaining in the press end position - by a distance which corresponds to the briquette height.
  • the invention has for its object to provide a method and a device of the type mentioned that enable a more efficient operation of a briquetting press and in particular allow time-saving production of briquettes of the same size.
  • This object is achieved for the method in that material up to one in the filling container predetermined weight filled, the respective level is determined and the starting position of the ram for the working stroke is set depending on the level.
  • the gravity of the material can be exploited in a simple manner in the case of a briquetting press designed in a vertical construction or in the case of a vertical material feed.
  • the controlled weight of the filling quantity which can always be the same regardless of the different bulk densities for the different materials, means that briquettes can always be produced with the same weight and - with the same specific weight - the starting material with the same height. Even if material with changing properties in terms of bulk density (provided the same specific weight is supplied), no prior adjustment or adjustment of the operating parameters of the briquetting press is required in order to obtain briquettes of the same height and weight.
  • the filling container is assigned weight and fill level sensors and the fill level sensors electrically connected to the stroke limit switches of the ram. Due to the possible interaction between the preferably non-contact fill level sensors and the stroke limit switches, when the predetermined weight of the fill quantity is reached, on the one hand a signal interrupting the material supply and on the other hand, from the fill level sensors, a return stroke of the ram in signal from the press chamber corresponding to the level of the replenished quantity of material.
  • inductive limit switches arranged in series in the stroke direction form the level sensors and stroke limit switches, a number corresponding to the fill level is addressed or occupied by the limit switches or proximity switches arranged on the fill container and the same number correspondingly by the stroke limit switches arranged on the press rendered ineffective.
  • the return stroke of the ram which preferably has a switching flag assigned to the stroke limiting switches, is limited as soon as the switching flag comes into contact with a still active stroke limiting switch (proximity switch).
  • the plunger is always assigned a limit switch more than the filling container, so that a plunger stroke can also be triggered when all the limit switches of the filling container are occupied.
  • induction limit switches for example, induction loops could also be used as sensors.
  • the filling container is made of poorly conductive material, such as ceramic or glass.
  • poorly electrical conductivity takes into account the fact that according to scientific understanding all materials are electrically conductive, so that a distinction is only made between better or poorly conductive materials, the conductivity of the latter practically going to zero (cf. "Taschenbuch Elektrotechnik", Volume 1, page 522, Carl Hansa Verlag).
  • the hopper be preceded by a funnel upstream of the filling container, which hopper has an outlet lock which is electrically connected to the weight sensor.
  • the filling container is advantageously movably suspended with the interposition of a load cell. As soon as the target value for the weight of the filling quantity is reached, the load cell emits a signal, whereupon the funnel with the spout lock is closed, thus preventing further material supply from the funnel.
  • a closing wall can be arranged on the outlet side. This only then opens the passage for filling the material into the pressing chamber of the briquetting press, which advantageously has the same diameter as the filling container, e.g. signal operated after the briquette produced in the previous press stroke has been ejected by means of a pulse of a press plate. The wall is then returned to the position blocking the outlet end of the filling container.
  • a briquetting press 1 shown schematically in cross section and constructed in vertical construction, is fed by a speed-adjustable continuous conveyor 2 (endless belt or vibrating trough) and is thrown into a hopper 4.
  • the funnel 4 is set up on the foundation separately from the briquetting press via a support frame 5.
  • a cylindrical filling container 6 with a linkage 7 is movably suspended in the support frame 5 with the interposition of a load cell 8. The separation between the support frame 5 and the briquetting press 1 takes place with regard to the sensitive load cell 8.
  • the load cell 8 is electrically connected to a funnel 4 which is arranged between the funnel 4 and the inlet end 9 of the filling container 6 and which closes the funnel 4 upon a corresponding signal from the load cell 8 Exhaust lock 11 connected.
  • the filling container 6 is also assigned a fill level sensor 12 in the form of five inductive limit switches 15 arranged in series in the stroke direction 13 of a press ram 14.
  • the outlet end 16 of the tubular filling container 6 is closed with a closing wall 17 which is opened in a signal-actuated manner for filling a pressing chamber 18, so that the quantity of material stored in the filling container 6 can fall down into the pressing chamber 18 due to gravity.
  • the filling container 6 and the press chamber 18 have the same inner diameter.
  • the outlet lock 11 and the closing wall 17 are designed as reciprocating slides and are guided in a tightly closing manner between the areas to be separated from one another; Large distances are only present in the exemplary embodiment for the sake of a better drawing.
  • the press chamber 18 is arranged in a press pot 19 below a counter crossmember 21, which is connected via columns 22 to the lower press part designed as a press cylinder 23.
  • the plunger 25 of the plunger 14 is mounted in a pressure chamber 24 connected to pressure medium connections, not shown.
  • the press ram 14 is provided with a switching flag 26, to which six stroke limit switches 27 in the form of inductive limit switches 28 arranged in series in the lower part of the press in the stroke direction 13 are assigned.
  • a press plate 32 which is displaceable transversely to the stroke direction 13 is arranged by means of a displacement cylinder 31.
  • the height h of the press plate 32 and thus of the free space 29 corresponds to the maximum height h 'of a finished briquette 33 - illustrated in the drawing by intersecting lines - so that the press plate 32 can simultaneously serve as a briquette ejector.
  • the press plate 32 is shifted from its position shown in the drawing to the right, the briquette 33 is pushed into the free space 29 by means of the press ram 34 and then ejected by means of the press plate 32, which is then moved briefly and to the left.
  • the fill level in the fill container 6 has been determined at the same time - the lower three switches are activated in the example shown - and on the basis of the electrical connection the limit switch 15 of the filling container 6 with the limit switches 28 of the ram 14 one of the sequence of the occupied, lower three limit switches 15 corresponding number of limit switches 28 set ineffective, ie in the example shown - seen in the direction of the downward arrowhead of the double arrow 13 - upper three ram limit switches 28 ineffective.
  • the press ram 14 is therefore only retracted in the press chamber 18 until its switching flag 26 comes into contact with a non-ineffective - in the example shown the fourth from above - limit switch 28.
  • the free space remaining above the end face 34 of the press ram 14 in the press chamber 18 thus corresponds to the fill level or the height which the material 3 filled in the fill container 6 occupies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Press Drives And Press Lines (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Control Of Presses (AREA)

Claims (10)

  1. Procédé pour faire fonctionner une presse à agglomérer (1) fonctionnant notamment verticalement, de préférence pour des morceaux de métal de petite taille en vrac, tels que des déchets provenant de l'usinage par enlèvement de copeaux, comprenant un récipient de remplissage (6) monté en amont d'une chambre de compression (18) contenant un piston de compression (14), caractérisé en ce que l'on remplit le récipient de remplissage (6) de matière (3) jusqu'à un certain poids préalablement défini, en ce que l'on détermine le niveau de remplissage et en ce que l'on règle la position de départ du piston de compression (14) pour la course en fonction du niveau de remplissage.
  2. Presse à agglomérer pour mettre en oeuvre le procédé selon la revendication 1, caractérisée en ce que des indicateurs de valeurs de mesure pour le poids et le niveau de remplissage (8 ; 12) sont associés au récipient de remplissage (6), et en ce que les indicateurs de valeurs de mesure pour le niveau de remplissage (12) sont reliés électriquement à des interrupteurs de limitation de la course (27) pour le piston de compression (14).
  3. Presse à agglomérer selon la revendication 2, caractérisée en ce que les indicateurs de valeurs de mesure pour le niveau de remplissage (12) et les interrupteurs de limitation de la course (27) sont réalisés sous la forme d'interrupteurs de proximité sans contact.
  4. Presse à agglomérer selon la revendication 2 ou 3, caractérisée en ce que plusieurs interrupteurs de fin de course inductifs disposés en ligne (15 ; 28) dans la direction de la course (13) forment les indicateurs de valeurs de mesure pour le niveau de remplissage (12) et les interrupteurs de limitation de la course (27).
  5. Presse à agglomérer selon l'une ou plusieurs des revendications 2 à 4, caractérisée en ce que le récipient de remplissage (6) est composé d'un matériau faiblement conducteur.
  6. Presse à agglomérer selon l'une ou plusieurs des revendications 2 à 5, caractérisée en ce qu'un entonnoir (4) muni d'un dispositif d'arrêt (11) est monté en amont du récipient de remplissage (6), du côté de l'entrée, entonnoir qui est relié électriquement à un indicateur de valeurs de mesure pour le poids (8).
  7. Presse à agglomérer selon l'une ou plusieurs des revendications 2 à 6, caractérisée en ce que le récipient de remplissage (6) est suspendu de façon mobile en intercalant au moins une cellule de pesage (8).
  8. Presse à agglomérer selon l'une ou plusieurs des revendications 2 à 7, caractérisée par un tube servant de récipient de remplissage (6), à la sortie duquel est associée une paroi de fermeture (17).
  9. Presse à agglomérer selon la revendication 8, caractérisée en ce que le récipient de remplissage (6) et la chambre de compression (18) présentent le même diamètre intérieur.
  10. Presse à agglomérer selon l'une ou plusieurs des revendications 2 à 9, caractérisée par un talon de déclenchement (26) du piston de compression (14) associé aux interrupteurs de limitation de la course (27).
EP91120014A 1990-12-13 1991-11-23 Procédé et installation de conduite d'une presse à agglomérés Expired - Lifetime EP0490148B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4039788 1990-12-13
DE4039788A DE4039788A1 (de) 1990-12-13 1990-12-13 Verfahren und vorrichtung zum betreiben einer brikettierpresse

Publications (3)

Publication Number Publication Date
EP0490148A2 EP0490148A2 (fr) 1992-06-17
EP0490148A3 EP0490148A3 (en) 1994-05-25
EP0490148B1 true EP0490148B1 (fr) 1996-02-28

Family

ID=6420220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120014A Expired - Lifetime EP0490148B1 (fr) 1990-12-13 1991-11-23 Procédé et installation de conduite d'une presse à agglomérés

Country Status (3)

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EP (1) EP0490148B1 (fr)
AT (1) ATE134711T1 (fr)
DE (2) DE4039788A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11347879A (ja) 1998-06-05 1999-12-21 Fuji Mach Mfg Co Ltd 切屑圧縮装置
DE19917421C1 (de) * 1999-04-19 2000-12-28 Svedala Lindemann Gmbh Verfahren zur Brikettierung von Metallspänen und Brikettierpresse
IT1315281B1 (it) * 2000-02-15 2003-02-10 Danese Maurizio Srl Macchina compattatrice per prodotti di scarto solidi e umidi
DE10051236A1 (de) 2000-10-16 2002-04-25 Dorst Masch & Anlagen Verfahren und Vorrichtung zum Bestimmen von Pressparametern zum Pressen komplex aufgebauter Presslinge
DE10254656B4 (de) 2002-11-22 2005-10-13 Dorst Technologies Gmbh & Co. Kg Presseneinrichtung zum Herstellen maßhaltiger Presslinge mit zentraler Stempelabstützung
DE102007056330A1 (de) * 2007-11-22 2009-05-28 Egon Evertz Kg (Gmbh & Co.) Verfahren und Vorrichtung zur Herstellung von bindemittellosen Presskörpern aus Metallspänen und/oder Metallstäuben
CA2749738C (fr) 2010-08-23 2018-08-28 9177-4331 Quebec Inc. Procede et systeme de presse mecanique pour la production de briquettes cylindriques densifiees
FR2973273B1 (fr) * 2011-04-04 2014-04-11 Forezienne Hydraulique Et Pneumatique Sfh Soc Procede de traitement des boues d'usinage pour la fabrication de briquettes reutilisables en produits secondaires, et la machine de mise en oeuvre du procede
CN103941629A (zh) * 2014-04-01 2014-07-23 江苏永钢集团有限公司 双轮摩擦压砖机锤次监控装置
US10259184B2 (en) * 2017-04-03 2019-04-16 Ford Motor Company Aluminum dust collection and compacting apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068169B (de) * 1960-03-31 Waldemar I mdemann Düsseldorf Brikettierpresse
DE3002420C2 (de) * 1980-01-24 1984-05-30 Werner & Pfleiderer, 7000 Stuttgart Presse zum Verdichten schüttfähiger Massen zu Blöcken
JPS57106497A (en) * 1980-12-24 1982-07-02 Yoshitsuka Seiki:Kk Powder forming press having die table provided with eddy current type position detector
SU1052427A1 (ru) * 1982-08-17 1983-11-07 Днепропетровский Металлургический Институт Пресс пакетировочный
DE3888183D1 (de) * 1988-11-11 1994-04-07 Hans Ruf Verfahren zur Herstellung von formbeständigen Briketts und Brikettierpresse zur Durchführung des Verfahrens.

Also Published As

Publication number Publication date
ATE134711T1 (de) 1996-03-15
DE59107466D1 (de) 1996-04-04
EP0490148A2 (fr) 1992-06-17
DE4039788A1 (de) 1992-06-17
EP0490148A3 (en) 1994-05-25

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