WO1993004850A1 - Dipositif de production de corps moules par compactage par vibration - Google Patents

Dipositif de production de corps moules par compactage par vibration Download PDF

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Publication number
WO1993004850A1
WO1993004850A1 PCT/CH1992/000177 CH9200177W WO9304850A1 WO 1993004850 A1 WO1993004850 A1 WO 1993004850A1 CH 9200177 W CH9200177 W CH 9200177W WO 9304850 A1 WO9304850 A1 WO 9304850A1
Authority
WO
WIPO (PCT)
Prior art keywords
vibrating table
cover plate
mold
frame
machine frame
Prior art date
Application number
PCT/CH1992/000177
Other languages
German (de)
English (en)
Inventor
Werner Fischer
Original Assignee
Alusuisse-Lonza Services 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 Alusuisse-Lonza Services Ag filed Critical Alusuisse-Lonza Services Ag
Publication of WO1993004850A1 publication Critical patent/WO1993004850A1/fr

Links

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
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon

Definitions

  • the invention relates to a device for producing molded articles by vibration compression according to the preamble of patent claim 1.
  • electrodes in particular anodes, are used which are formed from a granular synthetic carbon mass.
  • the charcoal mass consists of granulated anode residues from electrolysis, burned and unfired anode rejects, petroleum coke and pitch, which are mixed in mixers according to certain recipes. The mixture is called the green mass.
  • the green mass must first be shaped into a compact body of certain dimensions, which is then fired.
  • Two methods are known for the compression molding. In one process, the shaping is carried out by compressing pressing, in the other process, the shaping is achieved by vibration compression in a mold with the application of a pressing force to the green mass in the mold.
  • the invention is in the field of vibration compaction.
  • a so-called sliding table vibrator is known for vibration compression.
  • the vibrating table and mold are arranged on a sliding table with which the vibrating table with mold can be moved from a first loading station with green mass to a second compression station.
  • a covering weight is inserted into the mold and the green mass compacted by putting the vibrating table into operation with the mold attached.
  • the covering weight is extended, the mold is detached from the vibrating table and lifted off the molded body, and the molded body is pushed off the vibrating table in its direction of travel from the compression station.
  • the vibrating table moves underneath a portal made up of two columns with crossbeams to vibrate and introduce the covering weight and lift off the mold.
  • the cross member bears the covering weight, while a hook for lifting the mold is arranged on the columns so that it can be moved in the vertical direction.
  • the disadvantages of this embodiment lie in the constructive outlay for moving the mold from the loading station to the loading station and the necessary equipment for shaping the anode body from the mold by lifting the mold, and also in the connection of the mold and vibrating table, so that the The mold unnecessarily comes with the excitation and further in that vibrations of the vibrating table are transmitted to the portal with devices arranged thereon for filling the mold, which leads to a high maintenance outlay for the portal with devices arranged thereon. Furthermore, vibrations of the vibrating table undesirably continue on devices provided nearby, such as machines or the like. It can be seen from the above that, due to the different individual work processes, the output of sliding table vibrating compressors is relatively low.
  • rotary table vibrators consist of a central column as a supporting structure, around the circumference of which, for example, three molds rotate on a rotary table.
  • a mold is filled with mass, at a two- The station is compacted by moving the mold onto a vibrating table that is fixed next to the supporting structure and inserting a covering weight, while at a third station the mold is shaped by lifting the mold and pushed off the turntable.
  • the three work cycles of filling, compacting and shaping therefore run simultaneously at three different work stations.
  • the rotary table compactor has the same disadvantages as the sliding table compactor.
  • stationary table vibrators are also known, which are characterized by a stationary vibrating table and a frame that overlaps the vibrating table.
  • the frame carries a cover weight which can be moved in the vertical direction and devices for vertical displacement of the mold for unloading a shaped body, so that the shaped body can be pushed off the vibrating table, as in the case of the sliding table vibrating compressor.
  • the stationary table vibrators are filled by charging trolleys which can be moved in and out between the mold and the covering weight.
  • Stationary table vibrators are structurally less complex than sliding table vibrating compressors, but they also combine their other disadvantages with regard to undesirable vibration excitation with vibration of the mold, and in addition, stationary table vibrators require mold changes.
  • cantilevers preferably project horizontally from the machine frame or the like at different heights, which hold the molding box and vibrating table in a lower area and the cover plate assigned to the molding box in the upper area.
  • two brackets each form a support plane; both support levels are rigidly connected to the machine frame, which in turn is pivotally mounted.
  • Fig. 1 the vibrator according to the invention in the front view
  • Fig. 2 the vibrator according to Fig. 1 in the
  • the vibrator 10 has a machine frame 11 which is connected at its bottom end to foundation blocks 12 and 13.
  • Spring elements 15 are arranged between the floor 14 and the foundation blocks 12 and 13 to suppress vibration excitation of the floor 14 by the vibrator 10.
  • the machine frame 11 is designed as a box frame consisting of profiles and is formed by a horizontally running lower profile frame 16 and a correspondingly extending upper profile frame 17, which are connected to each other by two front and rear, vertically projecting supports 18a, 18b are so that the box can be driven through on all sides.
  • the rear supports 18b are connected to supports 19 in a vertical extension, which are preferably connected in pairs to one of the foundation blocks 12, 13 by means of two horizontal support arms 19a and 19b. It can be seen from the following description of the vibrator 10 according to the invention that the foundation blocks 12 and 13 not only fulfill the function of a foundation, but also act as a counterweight to a vibration device 20 arranged on the machine frame 11.
  • the machine frame 11 carries on its front side facing the foundation blocks 12, 13 in each case two upper support profiles 21 and lower support profiles 22 arranged at a vertical distance from one another and projecting horizontally from the machine frame 11.
  • the support profiles 21 and 22 can be attached to the profile frames 16, 17 or to the front upright supports 18a.
  • the task of the upper support profiles 21 and lower support profiles 22 is to hold the vibration device 20 with a counterweight 20a on and away from the machine frame 11.
  • mold changes are facilitated, and at least two directions of displacement of the shaped bodies and a high level of damping are achieved by the rear supports 18b and front supports 18a acting as pulling or pushing rods acting on vibrations originating from the vibrating device 20 and dismantle.
  • the lower support profiles 22 carry the vibration device 20 and the upper support profiles 21 a hydraulic cover weight 20a.
  • the vibration device 20 consists of a vibrating table 24 to which two counterbalance exciters 25, 26 are assigned.
  • the vibrating table 24 is received in a holder, for example a box 27 open at the top, and supported on a box bottom 30 by springs 28, 29.
  • the box bottom 30 is opposite a cover plate 31 with a mold 32 attached to it, which is firmly connected to the machine frame 11 via the box 27 and the lower support profiles 22.
  • a hydraulically actuable piston-cylinder unit 36 is connected to the bottom 30 of the box 27, the cylinder rod 37 of which engages through the bottom 30 and the vibrating table 24 and engages with the bottom plate 33.
  • This piston-cylinder unit 36 serves as an ejection device in that it discharges compressed bodies from the mold 32 with the aid of the base plate 33, so that the bodies from the upper free edge of the mold 32 via displacement and conveying devices (not shown) in at least two conveyors ⁇ the directions, for example, transversely to or out of the plane of the drawing, can be removed.
  • two vibrators 10 designed according to the invention can be connected in tandem with a loading device 38 for the mold 32 and a conveyor 39 for both vibrators 10. Tandems of this type have the cost advantage of only one conveyor 39, can be set up in a space-saving manner, and allow higher output by loading device 38 filling a first mold 32, while the filling material is compressed in the other, ie the second mold 32.
  • the hydraulic counterweight 20a of FIG. 1 cooperating with the mold 32 consists of a hydraulic cylinder 51 with a piston 52 accommodated therein, which engages with a counter plate 54 via a piston rod 53.
  • the counter plate 54 is designed to be retractable and extendable into the mold 32 via the hydraulic cylinder 51.
  • the hydraulic cylinder 51 is connected to a pump unit 57 via oil lines 55, a non-return valve 58 is provided in the oil line 56 between the pump unit 57 and the hydraulic cylinder 51, and a needle fine valve 59 which can flow through in both directions is connected in parallel. With 60 an unlocking line is designated, which connects the oil line 55 with the check valve 58.
  • the pump unit 57 essentially comprises an oil reservoir, a pump which can be driven by an electric motor and a pressure relief valve which can be adjusted during operation.
  • the actuating device for the piston / cylinder unit 36 can also be constructed accordingly.
  • a compression cycle is described by extending the counter plate 54 from the mold 32, ejecting a compacted green coal body from the mold 32, returning the base plate 33, filling the mold 32 with green mass, retracting the counter plate 54 and initiating the vibration compression by tempering the unbalance exciter 25, 26.
  • the extension of the counter plate 54 is brought about by pressurizing the oil line 55 and directing the oil under the piston 52, so that the latter moves the counter plate 54 out of the mold 32 via the piston rod 53.
  • the check valve 58 is unlocked via the unlocking line 60, so that the oil volume on the side of the piston 52 facing away from the piston rod 53 can be fed into the pump unit 57.
  • the counter plate 54 comes into contact with the green mass as the filling material in the mold 32 when it enters, it exerts pressure on the green mass and the vibrating table 24 because it is hydraulically loaded, as a result of which the springs 28, 29 compress somewhat become.
  • the spring deformation is to be dimensioned by correspondingly pressurizing the oil line 56 in such a way that the springs 28, 29 are not overstressed even at maximum vibration amplitudes - triggered by the unbalance exciters 25, 26 - in order to maintain the vibrability of the vibrating table 24, ie be completely pressed together.
  • the needle fine valve 59 is adjustable with regard to its stroke-related flow rate for the purpose of ensuring optimal vibration behavior of the vibrating table 24 and permanent contact of the counter plate 54 with the green mass. It is thus achieved that, by choosing the oil pressure in the oil line 56, the counter plate 54 is held pressed against the green mass in such a way that it can follow the decrease in height of the green mass which is compacting, without the green mass due to the base plate 33 36 transmitted back pressure at maximum centrifugal force of the unbalance motors. When the compression is advanced, the counter plate 54 can vibrate with an amplitude that is between 1/2 and 3/4 of the amplitude of the vibrations of the base plate 33.
  • the hydraulic cylinder 51 is arranged on a support plate 61, which rests on both sides on the upper support profiles 21. With this arrangement, the hydraulic cylinder 51 is in the same position as the frame 24 as the vibrating table.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Abstract

L'invention concerne un dispositif utilisé pour fabriquer des électrodes, en particulier des électrodes au carbone pour l'électrolyse par fusion de l'aluminium, selon un procédé consistant à soumettre à des secousses une masse granulaire de charbon artificiel. Le dispositif comprend un châssis de moule (32) monté sur un châssis de machine (11) ou un cadre similaire, une plaque de couverture supérieure (54) qui peut être déplacée par rapport au châssis de moule (32) au moyen de dispositifs de déplacement (52, 53) et une table vibrante (24) associée à une plaque de fond (33) et au dispositif de déplacement (36) de ladite plaque de fond. Le dispositif présenté se caractérise par le fait que la plaque de couverture (54) avec son dispositif de fermeture est montée sur le châssis de la machine (11), ou sur un cadre similaire, à une certaine distance au-dessus du châssis de moule (32).
PCT/CH1992/000177 1991-09-06 1992-09-01 Dipositif de production de corps moules par compactage par vibration WO1993004850A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2631/91-4 1991-09-06
CH263191 1991-09-06

Publications (1)

Publication Number Publication Date
WO1993004850A1 true WO1993004850A1 (fr) 1993-03-18

Family

ID=4238108

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1992/000177 WO1993004850A1 (fr) 1991-09-06 1992-09-01 Dipositif de production de corps moules par compactage par vibration

Country Status (2)

Country Link
AU (1) AU2463992A (fr)
WO (1) WO1993004850A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999041052A1 (fr) * 1998-02-11 1999-08-19 Turan Rodoslu Dispositif de fabrication de produits en beton
FR2830789A1 (fr) * 2001-10-12 2003-04-18 Fcb Aluminium Dispositif et procede de commande d'un element de compression
CN109747209A (zh) * 2019-01-29 2019-05-14 安徽沃福机械科技有限公司 一种高速多功能成型装置及具有其的高速多功能成型设备
CN115122462A (zh) * 2022-06-23 2022-09-30 重庆臻宝实业有限公司 一种陶瓷振动注浆成型装置及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2147385A1 (de) * 1971-04-28 1972-11-02 Schweizerische Aluminium Ag, Chippis (Schweiz) Apparatur und Verfahren zum Herstellen von grünen Probekörpern aus Kunstkohle
DE3540384A1 (de) * 1985-11-14 1987-05-21 Vaw Ver Aluminium Werke Ag Verfahren zur vibrationsformgebung und vibrationsverdichter fuer kohlenstoffmassen
DE3724199A1 (de) * 1987-07-22 1989-02-02 Kloeckner Humboldt Deutz Ag Ruettelanlage zur herstellung von formkoerpern durch verdichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2147385A1 (de) * 1971-04-28 1972-11-02 Schweizerische Aluminium Ag, Chippis (Schweiz) Apparatur und Verfahren zum Herstellen von grünen Probekörpern aus Kunstkohle
DE3540384A1 (de) * 1985-11-14 1987-05-21 Vaw Ver Aluminium Werke Ag Verfahren zur vibrationsformgebung und vibrationsverdichter fuer kohlenstoffmassen
DE3724199A1 (de) * 1987-07-22 1989-02-02 Kloeckner Humboldt Deutz Ag Ruettelanlage zur herstellung von formkoerpern durch verdichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999041052A1 (fr) * 1998-02-11 1999-08-19 Turan Rodoslu Dispositif de fabrication de produits en beton
FR2830789A1 (fr) * 2001-10-12 2003-04-18 Fcb Aluminium Dispositif et procede de commande d'un element de compression
CN109747209A (zh) * 2019-01-29 2019-05-14 安徽沃福机械科技有限公司 一种高速多功能成型装置及具有其的高速多功能成型设备
CN115122462A (zh) * 2022-06-23 2022-09-30 重庆臻宝实业有限公司 一种陶瓷振动注浆成型装置及方法
CN115122462B (zh) * 2022-06-23 2023-09-05 重庆臻宝科技股份有限公司 一种陶瓷振动注浆成型装置及方法

Also Published As

Publication number Publication date
AU2463992A (en) 1993-04-05

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