CA2586983C - Vibrating compactor for the production of formed bodies by way of compaction - Google Patents

Vibrating compactor for the production of formed bodies by way of compaction Download PDF

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Publication number
CA2586983C
CA2586983C CA2586983A CA2586983A CA2586983C CA 2586983 C CA2586983 C CA 2586983C CA 2586983 A CA2586983 A CA 2586983A CA 2586983 A CA2586983 A CA 2586983A CA 2586983 C CA2586983 C CA 2586983C
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CA
Canada
Prior art keywords
cover
vibrating
weight
spring
mould
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.)
Active
Application number
CA2586983A
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French (fr)
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CA2586983A1 (en
Inventor
Hardy Nagel
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.)
Metso Outotec Oyj
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Outotec Oyj
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
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Application filed by Outotec Oyj filed Critical Outotec Oyj
Publication of CA2586983A1 publication Critical patent/CA2586983A1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02Presses 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
    • B30B11/022Presses 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
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25CPROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/08Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12Anodes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C15/00Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/10Compacting by jarring devices only
    • B22C15/14Compacting by jarring devices only involving pneumatic or hydraulic mechanisms
    • B22C15/16Compacting by jarring devices only involving pneumatic or hydraulic mechanisms the machine having special provision for reducing shock to its frame
    • B22C15/18Compacting by jarring devices only involving pneumatic or hydraulic mechanisms the machine having special provision for reducing shock to its frame by means of separate shock-absorbers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/08Producing shaped prefabricated articles from the material by vibrating or jolting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02Producing 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
    • B28B3/022Producing 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Electrochemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Forging (AREA)
  • Basic Packing Technique (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Jigging Conveyors (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Casting Devices For Molds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

To create a vibrating compactor with mould (11), preloaded over weight (12) and firm cover hood (14) for compacting grainy raw materials by vibration for shaping especially anode blocks (16) for molten phase electrolysis for the production of aluminium the service life of the at least one cover weight pressure spring (18) of which shall not be impaired by the atmosphere within the system of mould (11)/cover hood (14), the invention suggests to have the cover weight preloading device with the at least one pressure spring (18) arranged outside the mould/cover hood (14).

Description

- 1 ¨

Vibrating compactor for the production of formed bodies by way of compaction The invention is directed to a vibrating compactor for the production of formed bodies by vibrating compaction of grainy raw materials, in particular for the production of anodes and/or cathodes for the electrolytic smelting process for the production of aluminium with the aid of a vibrating table carried on springs to allow oscillation on which a mould with cover weight can be clamped the top side of which being joined to a preloading device with spring.

Metallic aluminium is won from alumina by way of molten phase electrolysis in electrolytic cells in which anodes in the form of carbon blocks are suspended.

These blocks are produced in anode plants normally from calcined petroleum coke and normally using pitch as binder. During that operation the hot mixture of petroleum coke and pitch is formed in a mould fastened to the table of a vibrat-ing compactor by means of vibrating compaction to an anode block, i.e. to the so-called green anode which is afterwards baked in a furnace. Density and height of the block anode to be formed have to meet narrow tolerances.
Known vibrating compactors are those where after filling the mould with raw materials a cover weight can be introduced. The cover weight rod of said cover weight projects to the top and is carried in an open frame. It is, moreover, known from DE-A-2 041 520 and DE-A-37 24 199 to have the cover weight at its top supported by at least one spring for increasing its impact frequency and impact intensity. The spring, however, is exposed to the hot exhaust gases and vapors, e.g. pitch vapors, that escape from the hot raw materials and which will be of disadvantage especially if the cover weight pressure spring is a pneumatic spring made of resilient material. This is true above all if as known from DE-23 767 a firm hood has been placed on the mould of the vibrating compactor CONFIRMATION COPY
and if the pneumatic springs for pressing the cover weight onto the paste have been provided inside the cover hood. Apart from the problem of a reduced ser-vice life of the cover weight springs, the cover hood impairs the accessibility to these springs. , The problem to be solved by the invention is to create a vibrating compactor of the type mentioned earlier with mould, preloaded cover weight and firm cover hood with at least one cover weight pressure spring featuring good accessibility and being characterized by a long service life.

That problem is solved according to the invention by a vibrating compactor for the production of formed bodies by way of compacting grainy raw materials, comprising a vibrating table carried on springs to allow vibration to which a mould with cover hood can be clamped with a cover weight that can be introduced in the mould the upper side of which has been joined to a preloading device with spring wherein the cover weight preloading device with the at least one spring is arranged outside the mould cover hood.

For the vibrating compactor according to the invention the cover weight preload-ing device with its at least one spring has been provided outside the mould cover hood. This means that the cover weight spring which basically may be a mechanical spring but with special advantage is a pneumatic spring of resilient material of variable retractive force will no longer be exposed, e.g., to the chemically aggressive atmosphere within the vibrationally supported system of mould/cover hood which will contribute to an extension of the service life of the cover weight preloading device. In addition, this arrangement of the cover weight-preloading device improves the accessibility during installation and main-tenance.

2a According to a specific feature of the invention the cover weight preloading device including spring has been arranged within a rod supporting device which has been fixed to the upper side of the cover hood and, consequently, outside of same. This means that the at least one spring has been arranged between the top cover of the rod supporting device and the top end of the cover weight rod ¨ 3 ¨

which projects through the mould cover hood into the rod supporting device from below. In addition, a lifting yoke acts at the top end of the cover weight rod through the openings of the rod supporting device which during upward move-ment separates the connection between mould/cover hood and carries the corn-ponents cover weight, cover hood and preloading device as connecting unit.

The invention and its further features and benefits are explained in more detail by the embodiment shown schematically in the figures. The figures show the following:
Fig. 1 the vertical section of the vibrating compactor according to the invention where the vibrational support of the vibrating table and the vibrating drive have been omitted and Fig. 2 the vibrating compactor of Fig. 1 after partial upward movement of the lifting yoke.

Based on the typical embodiment of Figures 1 and 2 the vibrating compactor serves, e.g. for shaping anode blocks. The vibrating compactor shows in the forming station a vibrating table 10 which is carried on a base frame in a vibra-tional manner by means of spring elements not shown, in particular by pneu-matic springs, and which can be made to perform vibrating motions by means of rotary out-of-balance exciters that have not been shown. In the forming station the mould 11 of mostly rectangular cross section to be filled with the hot grainy raw materials is clamped on vibrating table 10 which operates jointly with a cover weight 12. Its central cover weight rod 13 is guided axially in a sealing guide bush 15 within an opening in the upper side of a firm cover hood 14 which closes mould 11 at the top.

¨ 4 ¨

During operation of the vibrating compactor, the paste filled in mould Ills sub-jected to vibrating compaction in the space between the top of vibrating table and the underside of cover weight 12 to form anode block 16 as shown in Figs.
1 and 2. Following a defined vibrating period, anode block 16 has reached its defined density and height. The vibrating process is then switched off.
=
As can be seen in Fig. 2, cover hood 14 with cover weight 12 and perhaps jointly with mould 11 are lifted off to the top by upward movement of a lifting yoke 17 prompted by a rope hoist or hydraulic means and the finish formed green anode block 16 is pushed off the upper side of vibrating table 10 to the side and the forming station of the vibrating compactor is cleared to accept a new anode block for being compacted by vibration.

To enhance uniform vibrating compaction, to generate an additional compaction pressure and to shorten the vibrating period, cover weight 12 has been fitted with a preloading device with at least one spring 18, especially in the form of bellows made of resilient material to which compressed air can be admitted which fact allows to change the normal mode of cover weight 12, in particular its impact frequency and impact intensity during vibrating compaction even during operation of the vibrating compactor. Fig. 2) shows pneumatic bellows 18 of Fig.
1 in compressed condition with cover weight 12 moved upward.

A characteristic feature of the vibrating compactor according to the invention is that the cover weight preloading device with at least one spring 18 has been mounted outside mould cover hood 14, i.e. arranged within a rod supporting device 19 fastened to the top of cover hood 14. Spring 18 has been arranged and/or clamped between top cover 20 of rod supporting device 19 and the upper end of cover weight rod 13 which projects through guide bush 15 in rod support-ing device 19 from below. The compressed-air inlet as center opening in top cover 20 for compressed-air admission to spring 18 has been identified by 21.

¨ 5 ¨

At any rate, spring 18 will not come into contact with the chemically aggressive atmosphere within the system of mould 11/cover hood 14, especially not if guide bush 15 features an additional sealing function.

The radial arms of a lower support disk 22 of lifting yoke 17 have been routed through the spaces between the rods distributed over the periphery of rod sup-porting device 19. A support ring 23 has been fastened to the upper end of cover weight rod 13 which supports the underside of spring 18. In addition, support disk 22, which encompasses cover weight rod 13 with a central opening, can be attached to support ring 23 from below upon upward movement of lifting yoke 17. Following upward movement of lifting yoke 17, cover hood 14 with or without mould 11 but at any rate with cover weight 12 and cover weight preload-ing device as connecting unit can be lifted off vibrating table 10 to the top.
This operation will be facilitated provided stop cams 24 interacting with the upper side of cover 12 have been provided at the inside of cover hood 14.

The vibrating compactor according to the present invention is suitable to com-pact all possible grainy raw materials, e.g. granules of synthetic resin as well as grainy primary or secondary fuels, etc.

Claims (9)

1. Vibrating compactor for the production of formed bodies by way of compacting grainy raw materials, comprising a vibrating table (10) carried on springs to allow vibration to which a mould (11) with cover hood (14) can be clamped with a cover weight (12) that can be introduced in the mould (11) the upper side of which has been joined to a preloading device with spring (18) wherein the cover weight preloading device with the at least one spring (18) is arranged outside the mould cover hood (14).
2. Vibrating compactor according to claim 1, wherein the cover weight preloading device including spring (18) is arranged within a rod supporting device (19) fastened to the upper side of cover hood (14).
3. Vibrating compactor according to claim 2, wherein the spring (18) of the cover weight preloading device is between the upper cover (20) of the rod supporting device (19) and the top end of the cover weight rod (13) projecting through the mould cover hood (14) from below into the rod supporting device.
4. Vibrating compactor according to any one of claims 1 to 3, wherein the spring (18) of the cover weight preloading device is a pneumatic bellows the interior of which is connected with a compressed-air source via an opening (21) in the top cover (20) of the rod-supporting device (19).
5. Vibrating compactor according to claim 3, comprising a lifting yoke (17) with a support disk (22) having radial arms, the radial arms have been routed through spaces between rods of the rod supporting device (19) which has been arranged over the periphery of the cover weight preloading device with spring.
6. Vibrating compactor according to claim 5, wherein a support ring (23) has been fastened to the top end of the cover weight rod (13) and that the support disk
7 (22) which encompasses the cover weight rod (13) with a central opening can be attached to the support ring (23) from below upon upward movement of the lifting yoke (17).
7. Vibrating compactor according to claim 6, wherein after upward movement of lifting yoke (17), the cover hood (14) can be lifted off to the top at any rate with cover weight (12) and cover weight preloading device as connecting unit.
8. Vibrating compactor according to claim 7, comprising stop cams (24) ranged at the inside of cover hood (14) and interacting with the upper side of cover weight (12).
9. Vibrating compactor according to any one of claims 1 to 8, wherein the formed bodies are anodes and/or cathodes for the electrolytic smelting process for the production of aluminium.
CA2586983A 2004-12-17 2005-12-14 Vibrating compactor for the production of formed bodies by way of compaction Active CA2586983C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004060824.5A DE102004060824C5 (en) 2004-12-17 2004-12-17 Vibrating machine for the production of moldings by compaction
DE102004060824.5 2004-12-17
PCT/EP2005/013438 WO2006063814A1 (en) 2004-12-17 2005-12-14 Vibrating compactor for the production of formed bodies by way of compaction

Publications (2)

Publication Number Publication Date
CA2586983A1 CA2586983A1 (en) 2006-06-22
CA2586983C true CA2586983C (en) 2013-05-14

Family

ID=35809557

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2586983A Active CA2586983C (en) 2004-12-17 2005-12-14 Vibrating compactor for the production of formed bodies by way of compaction

Country Status (9)

Country Link
CN (1) CN101090813B (en)
AR (1) AR051996A1 (en)
CA (1) CA2586983C (en)
DE (1) DE102004060824C5 (en)
EA (1) EA010850B1 (en)
FR (1) FR2879501B1 (en)
NO (1) NO338251B1 (en)
WO (1) WO2006063814A1 (en)
ZA (1) ZA200704345B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007063143A1 (en) * 2007-12-29 2009-07-02 Heinz Caspelherr Vibrating device for producing carbon electrodes for aluminum industry, comprises a vibrating table, which is seated on vertically arranged spring elements and carries a stage construction resting on supports, and a clamping device
WO2010119184A1 (en) * 2009-04-15 2010-10-21 Solios Carbone Back pressure device for a vibrocompacting device, and vibrocompacting device provided with such a back pressure device
DE102009050731A1 (en) * 2009-10-26 2011-04-28 Outotec Oyj Plant for producing a coal cake suitable for coking
CN102744766B (en) * 2012-07-16 2014-07-30 中钢集团洛阳耐火材料研究院有限公司 Die mechanism of vibration molder with slide block on middle part and operation method thereof
FR2995879B1 (en) * 2012-09-25 2015-07-24 Solios Carbone DEVICE FOR TRANSPORTING A PASTE FOLLOWING TWO PERPENDICULAR AXES AND A DEVICE FOR MANUFACTURING MOLDED BLOCKS COMPRISING SUCH A DEVICE
CN102995057B (en) * 2012-12-05 2015-09-02 中电投宁夏青铜峡能源铝业集团有限公司 Surface is for plane or V-arrangement face and have cathode block and the preparation method of staggered charcoal bowl
CN103318488B (en) * 2013-07-05 2015-09-09 河南省海田自动化系统有限公司 Fiber bar stock knocking device
CN104552528B (en) * 2014-12-22 2017-03-22 浙江新木材料科技有限公司 Cold pressing shock excitation forming and thermosetting method for wood fiber special-shaped workpiece
CN106079535B (en) * 2016-07-21 2017-07-25 济南海川投资集团有限公司 A kind of big specification pre-baked anode carbon blocks pressing shaping device and its application method
CN106985443B (en) * 2017-05-19 2018-09-25 王萌戈 A kind of garbage reclamation pop can pressurizing unit
CN109552902A (en) * 2019-01-17 2019-04-02 安徽科达洁能新材料有限公司 A kind of powder filling device
CN111086258B (en) * 2019-12-19 2021-10-12 张辉 Solid waste compact treatment system and method based on vibration, negative pressure and thermalization technology
CN112792299B (en) * 2020-12-29 2022-05-06 山东金宇重型机械有限公司 Sand casting core making process

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE1784661C3 (en) * 1968-09-03 1979-03-22 Vereinigte Aluminium-Werke Ag, 5300 Bonn Method and device for producing shaped bodies, in particular carbon electrodes for aluminum electrolysis or the like
DE1758927B1 (en) * 1968-09-04 1970-12-17 Vaw Ver Aluminium Werke Ag Shaking device for the production of high density carbon electrodes for the aluminum industry
DE1784761A1 (en) * 1968-09-14 1971-11-18 Kloeckner Humboldt Deutz Ag Method and device for the production of molded articles by compression
CH507170A (en) * 1969-02-04 1971-05-15 Alusuisse Method and device for the production of carbon bodies
DE1961098A1 (en) * 1969-12-05 1971-06-09 Klaus Schneider Device for the production of elements from concrete or similar masses
DE2023369C3 (en) * 1970-05-13 1978-08-10 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Vibrating system for the production of moldings by compression
DE2041520C3 (en) * 1970-08-21 1975-02-06 Kloeckner-Humboldt-Deutz Ag, 5000 Koeln Vibrating system for the production of moldings by compression
DE2103193A1 (en) * 1971-01-23 1972-08-10 Vaw Ver Aluminium Werke Ag Aluminium electrolysis electrode prodn shaker table - mould - fitted with vacuum evacuation connections
DE8307078U1 (en) * 1983-03-11 1984-03-22 Rampf Formen GmbH, 7936 Allmendingen DEVICE FOR PRODUCING MOLDINGS FROM CONCRETE OR THE LIKE
DD232871B1 (en) * 1984-12-27 1988-04-20 Leipzig Tech Hochschule TWO-PIECE SHAPE WALL
DE3540384A1 (en) * 1985-11-14 1987-05-21 Vaw Ver Aluminium Werke Ag Process for vibratory shaping, and vibratory compressor (compacter) for carbon compositions
DE3724199A1 (en) * 1987-07-22 1989-02-02 Kloeckner Humboldt Deutz Ag Vibratory installation for producing mouldings by densification
JP2000167647A (en) * 1998-12-04 2000-06-20 Taiyo Machinery Co Ltd Automatic vibration molding machine for green mold
NO316162B1 (en) * 2002-02-14 2003-12-22 Norsk Hydro As Method and plant for compacting material

Also Published As

Publication number Publication date
AR051996A1 (en) 2007-02-21
DE102004060824B4 (en) 2012-11-22
CN101090813A (en) 2007-12-19
CA2586983A1 (en) 2006-06-22
FR2879501A1 (en) 2006-06-23
CN101090813B (en) 2011-12-28
WO2006063814A1 (en) 2006-06-22
ZA200704345B (en) 2008-08-27
DE102004060824C5 (en) 2016-10-27
EA200701295A1 (en) 2007-12-28
NO338251B2 (en) 2016-08-08
NO338251B1 (en) 2016-08-08
DE102004060824A1 (en) 2006-06-29
EA010850B1 (en) 2008-12-30
FR2879501B1 (en) 2010-12-03
NO20073498L (en) 2007-07-06

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