EP0367859B1 - Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé - Google Patents

Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé Download PDF

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Publication number
EP0367859B1
EP0367859B1 EP88118784A EP88118784A EP0367859B1 EP 0367859 B1 EP0367859 B1 EP 0367859B1 EP 88118784 A EP88118784 A EP 88118784A EP 88118784 A EP88118784 A EP 88118784A EP 0367859 B1 EP0367859 B1 EP 0367859B1
Authority
EP
European Patent Office
Prior art keywords
press
piston
compressing
compressed
pressure
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
EP88118784A
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German (de)
English (en)
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EP0367859A1 (fr
Inventor
Hans Ruf
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to AT88118784T priority Critical patent/ATE102123T1/de
Priority to EP88118784A priority patent/EP0367859B1/fr
Priority to DE88118784T priority patent/DE3888183D1/de
Priority to ES88118784T priority patent/ES2051817T3/es
Publication of EP0367859A1 publication Critical patent/EP0367859A1/fr
Application granted granted Critical
Publication of EP0367859B1 publication Critical patent/EP0367859B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3003—Details
    • B30B9/301—Feed means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/30—Presses specially adapted for particular purposes for baling; Compression boxes therefor
    • B30B9/3078—Presses specially adapted for particular purposes for baling; Compression boxes therefor with precompression means
    • 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 for producing dimensionally stable briquettes from chip, fiber, dust or sheet-shaped pressed material by means of a briquetting press in which the pressed material is first fed to a pre-compression piston and pre-compressed by its pre-compression plate in a receiving chamber and by a compression piston moved at right angles to it is further compressed in a molding box, and a briquetting press to carry out the process.
  • Such a method and a briquetting press of the generic type are known from DE-PS 33 33 766, the relatively high press density and uniformity of the rectangular briquettes being achieved by the pre-compression and main compression taking place at right angles to one another. This enables the briquettes to be stacked particularly well.
  • This briquetting press is operated for a quick workflow via a sequence control, which detects the piston movements and positions via pushbuttons, as well as the pressure exerted via pressure sensors, in order to coordinate and in each case the movement sequence of the feed, pre-compression, compression, ejection and mold turning device after the end of a work movement to continue the next one.
  • the pressing capacity that can be achieved with a specific material to be pressed depends primarily on the installed drive power of the briquetting press. If the material to be pressed remains the same and thus the pressing resistance is known, the most efficient pressing path or piston stroke can be determined by tests for a given drive power and the briquette size can be determined by stops or limit switches.
  • the defined end position and thus the briquette size are easily reached in the case of pressed material that is easier to deform, however, the pressing density remains relatively low, so that the compact is subject to a relatively low load such as, for example, B. when stacking, can dissolve.
  • the briquette size is reliably achieved with compaction material that is easier to compress, but the installed drive power is not used, while the desired briquette size is not achieved with compaction material that is more difficult to compress.
  • This is particularly disadvantageous in the case of the box pressing method of the generic type, since if the briquettes are too long in the main compression direction at the parting plane to the molding boxes, additional separation and shear energies have to be used.
  • DE-OS 30 38 839 describes a controllable briquetting press according to the extrusion process, the Supply quantity is regulated on the basis of the maximum pressure at the pressing device determined by a push button.
  • the press nozzle cross-section can be adjusted independently to adapt to different press material in order to achieve largely constant compaction and strength.
  • the proposed coupling between the press hydraulic motor and the press nozzle can only be used for extrusion presses with reasonable effort.
  • a briquetting extrusion press which, when changing the consistency of the pressed material to avoid briquettes that are too thin, measures the thickness of the briquettes emerging from the pressing head and adjusts the pressing piston via a control element.
  • a complex construction of the plunger unit is necessary. A transfer of the scanning of the briquette thickness to a generic box pressing method is not conceivable due to the large number of measurements in a rapid pressing process and very expensive due to the separate scanning of the individual briquettes.
  • the invention is therefore based on the object to achieve the greatest possible compression and uniformity in briquette size with ease of installation and manufacture for different pressed material, in particular additional shear forces between the pre-compression and main compression should be avoided.
  • This object is achieved by a method having the characterizing features of patent claim 1 and a briquetting press according to the characterizing features of patent claim 2.
  • a briquetting press 1 is shown, which is constructed on a schematically illustrated frame 2.
  • the plunger 4 is fastened to tie rods 3 and connected to a counter plate 6 with the interposition of a disc 5 which can be rotated in steps.
  • a reciprocating slide can also be provided with at least two mold boxes, which are moved alternately between the pressing position in the extension of the ram piston path and the ejection position.
  • a plurality of molded boxes 7 are provided in the disk 5, in each of which a briquette 8 is formed and compressed to its final size.
  • the press ram 9 of the press piston 4 has a rectangular shape corresponding to the desired briquette cross section and is pressurized in coordination with the disk 5 and a pre-compressor piston 11.
  • the pre-compression piston 11 has a pre-compression plate 12, which presses the material to be pressed supplied from a feed device 13 into the receiving chamber 10 from above.
  • the feed screw 14 is temporarily driven by a feed motor 15 in its up position, depending on the required feed quantity.
  • An agitator 16 can also be provided above the feed screw 14.
  • the material to be pressed is fed to the pre-compression piston 11 via the feed screw 14 by switching on the feed motor 15, so that the receiving chamber 10 and the space 10 'above it fill up to a desired height.
  • the pre-compression piston 11 is moved downwards via a sequence control until the pre-compression plate 12 reaches the end position 12 'shown in broken lines.
  • the plunger 4 is actuated by the sequence control known from DE-PS 33 33 766, so that the plunger plunges to the right into the receiving chamber 10 and further compresses the briquette 8 in cooperation with the molding box 7.
  • the disc 5 continues to the next molding box 7 (or a slide is moved laterally) while the finished compact 8 is released for ejection.
  • the pre-compression piston 16 is moved upwards and a new pressing process is initiated.
  • the finished briquette is simultaneously ejected from the molding chamber 7 of the disk 5, which is offset by 180 °, in synchronism with the pressing movement of the pressing piston 4.
  • displacement transducers 17 on the compression piston 4 and displacement transducers 18 are used here provided on the pre-compression piston 11.
  • These displacement transducers 17 and 18 can both be arranged in closely spaced steps, or can be of stepless design. Likewise, both a contactless and a contact-based design of the displacement sensors 17, 18 are possible.
  • the displacement sensor 17 is designed here as a push-button switch with three stages, so that the end position of the plunger 4 reached in each case can be detected in three end positions.
  • the displacement transducer 18 is provided as an inductive displacement transducer with a comb-like measuring strip 18a which can be moved together with the pre-compression piston 11 and which cooperates with a stationary measuring sensor 18b. Both displacement transducers 17, 18 are connected here to a control device 19, in particular a programmable logic controller or a microprocessor controller. According to the invention, however, the displacement sensor system 17 can alternatively be provided while the version with displacement transducer systems on both the compression piston 4 and the pre-compression piston 11 represents a particularly advantageous embodiment, since the desired uniformity of the briquettes to be pressed is thereby achieved to a particularly high degree.
  • the control unit 19 is connected on the output side to adjusting elements, in particular a control valve 20 and the feed motor 15.
  • the control valve 20 controls the achievable pre-compression pressure of the pre-compression piston 11.
  • a further possibility for controlling the pre-compression pressure is a pressure sensor 21 in a pressure line 22 to the pre-compression piston 11 To provide, which emits a signal analogous to the hydraulic pressure and thus controls the pressure source, for example a variable displacement pump 23 or the pressure control valve 20.
  • the displacement transducer 18 on the pre-compression piston 11 can at the same time adapt the feed quantity of the feed device to the present pressed material by varying the duty cycle or speed of the feed screw 14 in order to adjust the pre-compression pressure.
  • the quality and the pressing behavior of the respective pressing material is detected by the displacement transducer 18, in which the press-in height which can be achieved against the pressing resistance of the respective pressing material is detected via the measuring bar 18a and the sensor 18b.
  • the feed quantity can thus be changed by shortening or lengthening the feed time or feed speed.
  • the pressure of the precompression piston 11 z. B.
  • the press plate 12 can assume a relatively high end position in its end position, to reach the desired end position 12 'in Fig. 1, since the receiving chamber 10 flush with the direction of movement of the plunger 4th is completed and therefore no additional shear forces occur.

Claims (6)

  1. Procédé pour fabriquer des briquettes présentant une stabilité dimensionnelle à partir de matière pressée en forme de copeaux, de fibres, de poudres ou de feuils au moyen d'une presse à briquettes, dans lequel la matière à presser est d'abord guidée vers un piston de précompression (11) et, au moyen de la plaque de précompression (12) de ce piston, est précomprimée dans une chambre de réception (10), le pressage se poursuivant dans un châssis de moulage (7) au moyen d'un piston de compression (4) qui se déplace perpendiculairement au piston de précompression, caractérisé en ce qu'on mesure la position finale (12') du piston de précompression (11), atteinte par la plaque de pressage (12), agissant à l'encontre de la résistance au pressage du produit comprimé, et on règle, en fonction de la position finale (12') mesurée, la quantité de matière introduite et/ou la pression de précompression dans la chambre de réception (10).
  2. Presse à briquettes pour la mise en oeuvre du procédé selon la revendication 1, comprenant une chambre de réception (10) qui est précédée d'un espace de précompression (10') alimenté en matière à presser par un dispositif d'alimentation (13) et à partir duquel un piston de précompression (11) muni d'une plaque de pressage (12) comprime la matière à presser dans la chambre de réception (10), et comprenant en outre un piston de compression (4) susceptible de se déplaçer alternativement dans la direction perpendiculaire au déplacement du piston de précompression (11), en réalisant un pressage supplémentaire de la matière à presser pré-comprimée avec refoulement hors de la chambre de réception (10) ainsi qu'une commande séquentielle pour le piston de précompression et le piston de compression (4, 11), caractérisé en ce que le piston de précompression (11) comporte un capteur de déplacement (18) pour détecter la position de fin de course (12') de la plaque de précompression (12) et qui est relié à un appareil de commande (19) associé à des éléments de réglage (20, 15) de la pression de précompression du piston de précompression (11) ou, respectivement, de la quantité de matière introduite par le dispositif d'alimentation (13).
  3. Presse à briquettes selon la revendication 2, caractérisée en ce que l'élément de réglage (20) de la pression de précompression est réalisé sous la forme d'un capteur de pression (21) disposé sur une conduite de pression (22) du piston de précompression (11) et relié à une valve de réglage de pression (20).
  4. Presse à briquettes selon au moins la revendication 2, caractérisée en ce que l'élément de réglage (15) de la quantité de matière introduite est réalisé sour la forme d'un commutateur temporisé pour le moteur d'alimentation (15).
  5. Presse à briquettes selon au moins la revendication 2, caractérisée en ce que le capteur de déplacement (18) est conçu pour mesurer en continu.
  6. Presse à briquettes selon au moins la revendication 2, caractérisée en ce que le capteur de déplacement (18) est conçu pour mesurer sans contact.
EP88118784A 1988-11-11 1988-11-11 Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé Expired - Lifetime EP0367859B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT88118784T ATE102123T1 (de) 1988-11-11 1988-11-11 Verfahren zur herstellung von formbestaendigen briketts und brikettierpresse zur durchfuehrung des verfahrens.
EP88118784A EP0367859B1 (fr) 1988-11-11 1988-11-11 Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé
DE88118784T DE3888183D1 (de) 1988-11-11 1988-11-11 Verfahren zur Herstellung von formbeständigen Briketts und Brikettierpresse zur Durchführung des Verfahrens.
ES88118784T ES2051817T3 (es) 1988-11-11 1988-11-11 Procedimiento para la fabricacion de briquetas con estabilidad de forma y prensa de aglomerados para la realizacion del procedimiento.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88118784A EP0367859B1 (fr) 1988-11-11 1988-11-11 Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé

Publications (2)

Publication Number Publication Date
EP0367859A1 EP0367859A1 (fr) 1990-05-16
EP0367859B1 true EP0367859B1 (fr) 1994-03-02

Family

ID=8199549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118784A Expired - Lifetime EP0367859B1 (fr) 1988-11-11 1988-11-11 Procédé pour fabriquer des briquettes ayant une stabilité dimensionnelle et presse à briquetter pour la mise en oeuvre du procédé

Country Status (4)

Country Link
EP (1) EP0367859B1 (fr)
AT (1) ATE102123T1 (fr)
DE (1) DE3888183D1 (fr)
ES (1) ES2051817T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056546A1 (de) 2009-12-03 2011-06-09 Ruf Gmbh & Co. Kg Brikettierpresse

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4039788A1 (de) * 1990-12-13 1992-06-17 Lindemann Maschfab Gmbh Verfahren und vorrichtung zum betreiben einer brikettierpresse
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
DE19927341A1 (de) * 1999-06-16 2001-01-11 Svedala Lindemann Gmbh Verfahren zum Betreiben einer Brikettierpresse und Brikettierpresse
DE102008038966B3 (de) * 2008-08-13 2009-08-06 Lanner Anlagenbau Gmbh Vorrichtung zum Verpressen von Metallspänen in Metallbriketts
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
DE102013020319B4 (de) 2013-12-05 2016-05-25 Ulrich Bruhnke Verfahren und Anlage zur Herstellung von Pressbolzen
CN112606464A (zh) * 2020-11-25 2021-04-06 施继良 一种铁屑铜屑压块用液压设备
CN114407421A (zh) * 2021-12-29 2022-04-29 太重（天津）滨海重型机械有限公司 炭素挤压机的智能加料挤压系统和智能加料挤压方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1584543C3 (de) * 1964-11-28 1979-04-05 Laeis-Werke Ag, 5500 Trier Regeleinrichtung an Pressen zum Herstellen von Formungen gleicher Dichte und gleicher Abmessungen
DE3333766A1 (de) * 1983-09-19 1985-03-28 Hans 8939 Zaisertshofen Ruf Brikettierpresse
FR2578550B1 (fr) * 1985-03-08 1987-05-29 Bonnet Robert Procede de fabrication de briquettes a partir d'elements compressibles et machines pour l'application du procede

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056546A1 (de) 2009-12-03 2011-06-09 Ruf Gmbh & Co. Kg Brikettierpresse
WO2011066977A1 (fr) 2009-12-03 2011-06-09 Ruf Gmbh & Co. Kg Presse à briqueter et son utilisation

Also Published As

Publication number Publication date
DE3888183D1 (de) 1994-04-07
EP0367859A1 (fr) 1990-05-16
ES2051817T3 (es) 1994-07-01
ATE102123T1 (de) 1994-03-15

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