EP0078396B1 - Procédé d'exploitation d'un silo de mélange de passage - Google Patents

Procédé d'exploitation d'un silo de mélange de passage Download PDF

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Publication number
EP0078396B1
EP0078396B1 EP82108735A EP82108735A EP0078396B1 EP 0078396 B1 EP0078396 B1 EP 0078396B1 EP 82108735 A EP82108735 A EP 82108735A EP 82108735 A EP82108735 A EP 82108735A EP 0078396 B1 EP0078396 B1 EP 0078396B1
Authority
EP
European Patent Office
Prior art keywords
air
silo
supplied
aerating
base
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
Application number
EP82108735A
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German (de)
English (en)
Other versions
EP0078396A3 (en
EP0078396A2 (fr
Inventor
Gerhard Balzau
Günter Kompa
Frank Dr.-Ing. Schaberg
Manfred Steinmann
Helmut Kucharski
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius 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 Krupp Polysius AG filed Critical Krupp Polysius AG
Priority to AT82108735T priority Critical patent/ATE42220T1/de
Publication of EP0078396A2 publication Critical patent/EP0078396A2/fr
Publication of EP0078396A3 publication Critical patent/EP0078396A3/de
Application granted granted Critical
Publication of EP0078396B1 publication Critical patent/EP0078396B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/54—Large containers characterised by means facilitating filling or emptying
    • B65D88/72—Fluidising devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/4092—Storing receptacles provided with separate mixing chambers

Definitions

  • the invention relates to a method for operating a continuous mixing silo intended for fine material with a large-volume silo cell, the bottom of which has a plurality of sector-shaped zones, to which loosening air is fed in succession from a blower.
  • the continuous mixing silos in question here are those with a relatively large diameter and high height, so that large quantities of fine material can be picked up and mixed there, as is the case, for example, for the mixing and homogenization of cement or cement raw meal or for similarly fine-grained or dusty good is required.
  • EP-A-0 030 362 discloses a method of the type mentioned above, in which the silo floor is divided into a number of individual ventilation sectors or sections, of which at least one is alternately acted upon by loosening air from below , so that the material above it is brought into a flowable state and several layers of material lying one above the other are mixed with one another and then discharged.
  • a mixing silo which is equipped with a container bottom according to EP-A-0 001 422, works in a similar manner, in which the bottom of a central material discharge zone is arranged lower than the bottom of conveyor troughs for the material discharge from the main silo room.
  • a method has also already been proposed (cf., for example, AT-B-213 855) in which the loosening air can be supplied in a pulsating manner to the respectively active soil sector.
  • three floor quadrants are only supplied with so much compressed air, for example, via a first compressor that the material stored on them is only ventilated (but not fluidized), while compressed air in such a way is supplied to the fourth quadrant of the floor via a second compressor
  • Quantity is supplied that the material above it is fluidized or loosened and gets into a vortex state, the pulsating compressed air supply being dimensioned relatively short, so that continuous, approximately vertical channels are formed in the material, whereupon the compressed air supply is switched off or interrupted again.
  • DE-A-2 517 482 also describes a container for mixing flowable solids, which contains a conical bottom (without built-in loosening devices), a conveying vessel arranged underneath, a centrally and vertically arranged return conveying pipe and downpipes arranged around the latter with discharge openings arranged at different heights .
  • the material to be mixed is circulated here in the mixing container, in the delivery vessel and in the central return pipe with air support (pneumatic), for which purpose a delivery fan is provided.
  • the invention is therefore based on the object of providing a method of the type mentioned at the outset which is particularly suitable for operating a continuous mixing silo in the form of a large-capacity silo and which is distinguished by its reliable mixing work with relatively small amounts of air required.
  • the supply of loosening air to the individual bottom zones of the continuous mixing silo can take place largely in the same way (in a time-varying sequence), as is known from the conventional methods.
  • the additional supply of additional air during certain time intervals then particularly intensifies the loosening of the good or the good column over the respective supply area, ie during this brief, additional ventilation of the respective floor zone, the additional air coming from the air reservoir will be pushed up practically through the entire section of the pillar.
  • the various layers of material in the material column become more mixed, so that the mixing effect of the entire silo content, which is greatly improved compared to known processes, is achieved.
  • the ratio of the loosening air pressure to the pressure of the additional air can be selected between approximately 1: 5 and 1:10, the pressure of the additional air depending on the height of the column of material in the silo being approximately between 4 and 8 bar, preferably around 6 cash.
  • a continuous mixing silo suitable for the application of the method according to the invention contains a large-volume silo cell, at least one upper material inlet, a floor slightly inclined towards the center, which has a plurality of sector-shaped zones which are ventilated in succession and which contain ventilation boxes connected to a blower and supplied with this by loosening air, furthermore at least one material outlet provided in the center area of the floor.
  • the continuous mixing silo 1 has a circular cross section. Its inner diameter D can be 25 m and more, while its clear height H can measure 50 m and more, so that in any case there is a large-volume silo cell 2 inside for the reception of fine material 3, which the silo cell 2 generally does not fills completely under the silo ceiling 4, but only with a good height H 9 , which leaves sufficient space above the good column to relax the loosening air, which can be removed in a manner not shown, for example via a filter.
  • the silo ceiling 4 there is at least one material inlet 5, but preferably several such evenly distributed material inlets 5, via which the material to be mixed can be supplied distributed over several locations.
  • the lower end of the silo 1 and thus the lower end of the silo cell 2 forms a bottom 6 which is initially slightly inclined towards the center in the usual way and is therefore designed in the form of a flat funnel.
  • a large number of radial pneumatic discharge troughs 7 are arranged uniformly distributed over the circumference of this silo bottom 6, which are preferably covered over some sections of their length and thus have only a plurality of product inlet openings 8 (in the example of FIG Fig. 2 has four discharge openings each discharge trough).
  • FIGS. 1 and 2 there are two product outlets 11 in the central area of the base 6 in a central, circular base part 12, which is arranged significantly lower than the other silo base 6 and is covered by a flat-conical hood 13.
  • a special central emptying chamber 14 is formed, which is fed in its upper part by the discharge troughs 7 arranged radially in the bottom 6, the inner ends of which extend below the cover 13 and open into the emptying chamber 14.
  • the central base part 12 (in the chamber 14) containing the two product outlets 11 has evenly distributed ventilation boxes 15, via which loosening air is constantly supplied during the operation of the silo 1.
  • the discharge troughs 7, the ventilation boxes 9 in the area between the discharge troughs 7 and the ventilation boxes 15 arranged in the central base part 12 can - as is generally the case - be supplied with loosening air by a common blower 16 in the required manner, as will be explained in more detail in part .
  • the ventilation boxes 9 and 10 arranged in the silo bottom 6 preferably have a narrow, elongated shape, the ventilation boxes 9 having a greater radial length than the ventilation boxes 10 (according to Fig. 2, the ventilation boxes 9 are approximately twice as long as the ventilation boxes 10) and all ventilation boxes 9, 10 are radially aligned, with their outer end are approximately in the area of the outer wall 17 of the silo and extend only over part of the radial bottom dimension.
  • the ventilation boxes 9 and 10 are thus each in an imaginary outer ring section of the silo bottom 6 and are arranged evenly distributed on the silo bottom 6 in such a way that a ventilation box 9 and a ventilation box 10 are opposite each other in the region of the longitudinal sides of an associated discharge channel 7 , wherein they are arranged parallel to this discharge channel 7.
  • the radially longer ventilation boxes 9 are each intended for supplying the usual loosening air from the fan 16.
  • the silo bottom 6 is divided in a known manner into a number of ventilation zones, to which the loosening air is supplied by the blower 16 in chronological order.
  • a conventional control device not illustrated in any more detail, ensures that the ventilation of the individual floor zones is switched on in the circumferential direction at a uniform cycle.
  • each of these circular sector-shaped floor zones - as indicated by hatching at 18, 18a - comprises two pneumatic discharge channels 7 with the associated ventilation boxes 9 and 10, it being preferred here in each case that there are two on the silo floor 6 in each active ventilation period to apply loosening air to diametrically opposite bottom zones 18, 18a (as indicated in FIG. 2) at the same time, while the central bottom part 12 is always supplied with loosening air evenly.
  • the ventilation boxes 10 arranged next to the ventilation boxes 9 supplied with loosening air have a special task.
  • These ventilation boxes 10 are not connected to the blower 16, but to a separate compressed air storage tank 19, to which a separate charging fan 20 is assigned.
  • this compressed air storage tank 19 additional air is supplied to the bottom zones 18, 18a, which are actively acted on with loosening air, via the ventilation boxes 10 during certain time intervals.
  • Each time interval for the supply of additional air is so dimensioned that within the entire ventilation period in which each soil zone 18, 18a is supplied with loosening air, after the intermittent supply of the additional air, there is still enough time for the compressed air storage tank 19 to be charged by the charging fan 20 recharge. This means that in the example of FIGS.
  • two zones (18, 18a) diametrically opposite each other on the silo bottom 6 are simultaneously acted upon with loosening air and thereby briefly intermittently with additional air, while the central bottom part 12 is constantly fed with loosening air, the loosening air for the ventilation boxes 10 and 15 and the conveying air for the discharge channels 7 is generated by the fan 16, while the additional air is supplied via the ventilation boxes 10 from the compressed air storage tank 19.
  • loosening air ventilation boxes 9 and the additional air ventilation boxes 10 For the formation of the loosening air ventilation boxes 9 and the additional air ventilation boxes 10, it should be pointed out that their length preferably depends on the quality of the material and / or the silo diameter D. While it is assumed in the illustration in FIG. 2 that it is relatively easy to fluidize and mix Fine material should be loosened and mixed, so that only relatively short additional air ventilation boxes 10 are required and, in contrast, relatively long loosening air ventilation boxes 9 are provided, an inverse length ratio of loosening air ventilation boxes to additional air ventilation boxes can also be selected, especially if fines that are particularly difficult to mix.
  • a second embodiment of the continuous mixing silo (here designated 21) will be explained with reference to FIGS. 3 and 4.
  • the main difference between this second exemplary embodiment and the first is to be seen in the design of the silo bottom 22.
  • Each bottom zone 23 contains a discharge channel 24, which can be designed in accordance with the first exemplary embodiment and runs radially from the area of the outer wall 21a of the silo to a central emptying chamber 25, into which it opens.
  • the bottom 26 of this emptying chamber lies only slightly lower than the inner lower edges 24a of the discharge channels 24, this bottom 26 in turn containing two product outlets 27 and being covered with separate ventilation boxes 28.
  • Each bottom zone 23 has, at least in addition to the one long side of the discharge channel 24, an inclined surface 29 which is inclined both in the circumferential direction of the silo and in the radial direction and into which a plurality of ventilation boxes 30 and 31 are inserted, which are subjected to air from below in a manner to be explained in more detail below.
  • the radially inner ventilation boxes 30 are those which are supplied with loosening air by a blower - which is not illustrated in this example - which also - like in the first exemplary embodiment - the discharge channels 34 and the ventilation boxes 28 of the emptying chamber 25 with loosening or conveying air supplied.
  • the ventilation boxes 31 arranged in the radially outer area of each floor zone 23 or each inclined surface 29 are those which are supplied with additional air intermittently and briefly, which is brought up by a compressed air storage boiler with an associated charging fan, which is also not illustrated in this case, and in the same manner and design as has been explained with reference to the exemplary embodiment according to FIGS. 1 and 2.
  • the additional air ventilation boxes 31 (three boxes in each case in a bottom zone 23) are all in turn arranged in an imaginary outer ring section of the silo bottom 22.
  • the loosening air ventilation boxes 30 (two boxes in each case in a bottom zone 23) are arranged in an imaginary inner ring section of the silo bottom 22.
  • loosening air is also preferably applied to two diametrically opposed soil zones 23 in this exemplary embodiment. This requires only a comparatively small amount of loosening air, since the total area of the loosening air ventilation boxes 30 of each floor zone 23 is significantly smaller than the total area of the additional air ventilation boxes 31 of each floor zone.
  • the compressed air storage boiler was designed as follows:
  • the switchover time for active ventilation of each currently active floor zone was about 6 minutes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Accessories For Mixers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Storage Of Harvested Produce (AREA)

Claims (7)

1. Procédé d'exploitation d'un silo mélangeur continu (ou silo melangeur au passage) (1) destiné à une matière a granulométrie fine (3) (tel qu'exigé par exemple pour le mélange et l'homogénéisation de ciment ou de farine crue de ciment) et dont le fond (6) présente plusieurs zones (23) en forme de secteurs sur lesquelles une soufflante (16) dirige de l'air de désagrégation en séquences successives,
caractérisé par les particularités suivantes:
a) un réservoir d'air comprimé (19) dirige à certains intervalles de temps un complément d'air, dont la pression est supérieure à celle de l'air de désagrégation, sur des sections individuelles (10, 30) d'au moins une zone de fond (18, 18a) en cours de balayage actif par de l'air de désagrégation;
b) les intervalles de temps d'introduction du complément d'air sont calculés de manière que pendant la totalité de la période de ventilation de la zone du fond en cours de ventilation active (18, 18a), il subsiste encore suffisamment de temps, après l'introduction du brusque jet du complément d'air, pour recharger le réservoir d'air comprimé (19).
2. Procédé selon la revendication 1, caractérisé en ce que le rapport de la pression de l'air de désagrégation à celle du complément d'air est compris entre 1 : 5 et 1 : 10 et la pression du complément d'air est comprise entre 4 et 8 bars selon la hauteur de la colonne de matière se trouvant dans le silo.
3. Procédé selon la revendication 1, caractérisé en ce que l'introduction de l'air de désagrégation sur les zones du fond approximativement en forme de secteurs se poursuit pendant des périodes égales, l'introduction du complément d'air et la recharge du réservoir de ce dernier ayant lieu pendant chacune de ces périodes.
4. Procédé selon la revendication 3, caractérisé en ce que deux zones diamétralement opposées du fond sont balayées de manière connue par de l'air de désagrégation et également balayées brièvement par un violent jet d'un complément d'air, tandis qu'une zone centrale et circulaire d'évacuation du fond est alimentée en permanence en air de désagrégation.
5. Silo mélangeur continu (ou silo mélangeur au passage) comprenant un compartiment (2) de "grand volume" (tel que nécessaire par exemple pour le mélange et l'homogénéisation de ciment ou de farine crue de ciment), au moins une entrée supérieure de matière (5), un fond (6) légèrement incliné vers le fond et présentant plusieurs zones (23) en forme de secteurs qui sont balayées en séquences successives, qui sont raccordées à une soufflante (16) et qui englobent des caisses (9, 30) alimentées par cette dernière en air de désagrégation, ledit compartiment comprenant de plus au moins une décharge de matière (11) se trouvant dans la région du centre du fond (6),
caractérisé par les particularités suivantes:
a) les zones individuelles du fond (23) sont équipées, en plus des caisses (9, 30) alimentées en air de désagrégation, d'au moins une caisse supplémentaire (10, 31) de ventilation qui est raccordée à un réservoir d'air comprimé (19);
b) le réservoir d'air comprimé (19) destiné à être utilisé par intermittence à certains intervalles de temps et par l'intermédiaire des caisses supplémentaires de ventilation (10, 31) peut se recharger au moyen d'une soufflante particulière (20) pendant la période de ventilation de la zone du fond (18, 18a) qui est en cours de balayage.
6. Silo mélangeur continu selon la revendication 5, caractérise en ce que les caisses supplémentaires de ventilation (10,31) qui sont raccordées au réservoir d'air comprimé (19) sont régulièrement réparties dans un secteur annulaire imaginaire extérieur du fond (6, 22) du silo.
7. Silo mélangeur continu selon la revendication 6, caractérisé en ce que les caisses (9) alimentées en air de désagrégation et les caisses supplémentaires (10) raccordées au réservoir d'air comprimé (19) sont disposées à proximité des côtés longitudinaux opposés d'une goulotte de décharge (7) et parallèlement à cette dernière.
EP82108735A 1981-11-02 1982-09-21 Procédé d'exploitation d'un silo de mélange de passage Expired EP0078396B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108735T ATE42220T1 (de) 1981-11-02 1982-09-21 Verfahren zum betrieb eines durchlaufmischsilos.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3143387 1981-11-02
DE19813143387 DE3143387A1 (de) 1981-11-02 1981-11-02 Verfahren zum betrieb eines durchlaufmischsilos

Publications (3)

Publication Number Publication Date
EP0078396A2 EP0078396A2 (fr) 1983-05-11
EP0078396A3 EP0078396A3 (en) 1985-07-10
EP0078396B1 true EP0078396B1 (fr) 1989-04-19

Family

ID=6145383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108735A Expired EP0078396B1 (fr) 1981-11-02 1982-09-21 Procédé d'exploitation d'un silo de mélange de passage

Country Status (7)

Country Link
US (1) US4472062A (fr)
EP (1) EP0078396B1 (fr)
AT (1) ATE42220T1 (fr)
BR (1) BR8206304A (fr)
DE (2) DE3143387A1 (fr)
ES (1) ES516986A0 (fr)
ZA (1) ZA827245B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245542A1 (de) * 1982-12-09 1984-06-14 Claudius Peters Ag, 2000 Hamburg Mischsilo
DE3342507A1 (de) * 1983-11-24 1985-06-05 Claudius Peters Ag, 2000 Hamburg Doppel-mischkammersilo
DE3803085A1 (de) * 1987-02-13 1988-08-25 Harth & Seifert Gmbh Verfahren zur durchmischung von schuettguetern
US4944598A (en) * 1989-05-10 1990-07-31 Dynamic Air Inc. Continuous flow air blender for dry granular materials
US4943163A (en) * 1989-09-22 1990-07-24 Dynamic Air Inc. Blender for pneumatically mixing batches of dry granular materials by tumbling
DE4002099A1 (de) * 1990-01-25 1991-08-01 Draiswerke Gmbh Mischer
US5603566A (en) * 1995-11-21 1997-02-18 Abb Flexible Automation Inc. Powder hopper with internal air assist
US7267475B2 (en) * 2003-05-21 2007-09-11 Dynamic Air Inc. Blender
CN106688475A (zh) * 2015-07-21 2017-05-24 江苏恒欣仓储设备有限公司 一种储粮仓环形通风系统
US9650206B2 (en) * 2015-07-24 2017-05-16 Dynamic Aur Inc. Conveying systems

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT213855B (de) * 1955-06-28 1961-03-10 Fuller Co Verfahren und Vorrichtung zur Durchmischung von pulverförmigem Gut
NO116224B (fr) * 1960-06-10 1969-02-17 Vometec Nv
DE1129892B (de) * 1960-09-26 1962-05-17 Peters Ag Claudius Entleerungsvorrichtung fuer flachboedige Silos fuer staubfoermiges oder feinkoerniges Gut
DE1507890A1 (de) * 1965-09-18 1969-04-03 Bayer Ag Verfahren und Vorrichtung zum pneumatischen Mischen,Trocknen oder Befeuchten von pulverfoermigem Gut
NL6607707A (fr) * 1966-06-03 1967-12-04
GB1269756A (en) * 1969-08-28 1972-04-06 Polysius Ag A method for the continuous pneumatic treatment of fine material
DE2034818A1 (de) * 1970-07-14 1972-02-03 Buttner Schilde Haas AG, 4150 Kre feld Uerdingen Luftmischverfahren fur pulverfor mige Stoffe und Granulate
DE2121616C3 (de) * 1971-05-03 1975-07-03 Claudius Peters Ag, 2000 Hamburg Vorrichtung zum Mischen von Schüttgut und Verfahren zu Ihrem Betrieb
NL161414C (nl) * 1971-07-17 1980-02-15 Zimmermann Azo Maschf Silo met afzuigafvoer voor poedervormig materiaal.
DE2336984C2 (de) * 1973-07-20 1984-11-08 Claudius Peters Ag, 2000 Hamburg Entleerungseinrichtung für ein Schüttgut-Silo
FR2261804A1 (en) * 1974-02-26 1975-09-19 Daloz Ets Homogenising dry powders in fluidised bed mixer - with several different fluidising conditions in adjacent sectors of the bed
US3989147A (en) * 1975-01-30 1976-11-02 Morton Fried Bulk cement storage system
DE2517482A1 (de) * 1975-04-19 1976-10-28 Buettner Schilde Haas Ag Behaelter zum mischen von fliessfaehigen feststoffen
US3995771A (en) * 1975-05-19 1976-12-07 Kaiser Aluminum & Chemical Corporation Feeding device for particulate matter
SU569509A1 (ru) * 1975-12-29 1977-08-25 Предприятие П/Я А-7186 Питающий бункер дл сыпучих материалов
DE2655454A1 (de) * 1976-12-07 1978-06-08 Polysius Ag Verfahren zum pneumatischen mischen und homogenisieren von feingut in einem silo
FR2374073A1 (fr) * 1976-12-18 1978-07-13 Peters Ag Claudius Silo a chambre de melange pour matieres en vrac
DE2744853A1 (de) * 1977-10-05 1979-04-12 Polysius Ag Behaelterboden zum pneumatischen austrag von feingut
DE2949791A1 (de) * 1979-12-11 1981-06-19 Krupp Polysius Ag, 4720 Beckum Vorrats- und mischsilo fuer schuettgut
DE3010499C2 (de) * 1980-03-19 1983-03-03 Johannes Möller Hamburg GmbH & Co KG, 2000 Hamburg Großraumsilo für die Lagerung und Homogenisierung von mehlförmigen Schüttgütern

Also Published As

Publication number Publication date
EP0078396A3 (en) 1985-07-10
DE3143387C2 (fr) 1990-01-11
ATE42220T1 (de) 1989-05-15
ZA827245B (en) 1983-08-31
DE3143387A1 (de) 1983-05-11
EP0078396A2 (fr) 1983-05-11
BR8206304A (pt) 1983-09-20
US4472062A (en) 1984-09-18
DE3279621D1 (en) 1989-05-24
ES8401860A1 (es) 1984-01-01
ES516986A0 (es) 1984-01-01

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