EP0181353A1 - Dispositif et procede permettant le triage separatif du grain. - Google Patents

Dispositif et procede permettant le triage separatif du grain.

Info

Publication number
EP0181353A1
EP0181353A1 EP85901960A EP85901960A EP0181353A1 EP 0181353 A1 EP0181353 A1 EP 0181353A1 EP 85901960 A EP85901960 A EP 85901960A EP 85901960 A EP85901960 A EP 85901960A EP 0181353 A1 EP0181353 A1 EP 0181353A1
Authority
EP
European Patent Office
Prior art keywords
fluidized bed
outlet
fraction
heavy
tables
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.)
Granted
Application number
EP85901960A
Other languages
German (de)
English (en)
Other versions
EP0181353B1 (fr
Inventor
Roman Muller
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Priority to AT85901960T priority Critical patent/ATE34674T1/de
Publication of EP0181353A1 publication Critical patent/EP0181353A1/fr
Application granted granted Critical
Publication of EP0181353B1 publication Critical patent/EP0181353B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents

Definitions

  • the invention relates to a device for separating grain into several fractions with two oscillatingly supported and adjustable in their inclination and penetrable by a common airflow fluidized bed tables, with an inlet for the granular material is arranged above the higher end of the upper fluidized bed table, the one at the lower end there is an outlet for the lightest grain fraction and with a stone outlet at the higher end of the lower fluidized bed table and an outlet for the heavy grain fraction at the lower end and with an intermediate floor of shorter length arranged between the fluidized bed tables than the fluidized bed tables for removing a mixed fraction, the extends from the lower end of the fluidized bed tables towards the higher end.
  • the actual grain is obtained with a foreign material, which consists in particular of small stones, pieces of glass and metal parts, as well as various light materials (such as large shell parts, fragments of straws and foreign material) Seeds), which are all within a certain grain size range, for example in the case of wheat varieties in the range from 2mm to 6mm or with maize in the range between 5mm and 20mm.
  • the light components are separated by special readout tables (such as paddy readers or light grain readers).
  • a large part of the grain that had been screened in this way to a certain granulation area and freed from the light constituents was passed through a water bath and the adhering dirt and stones were washed out. Because of their greater weight, the stones could be collected on the floor of the washing machine using the setting method.
  • the upper vibrating table primarily serves for a clean separation of the light fraction and has an elongated shape for this purpose, whereby it can be adjusted in a slight inclination from the inlet end to the outlet end
  • the heavy goods are then drained along a second section onto the lower vibrating table immediately below, the task of which is to read out the heavy goods and the parts with a greater specific weight (such as stones, glass, metal, etc.).
  • the lower swing table is for this purpose ke is also equipped with an oscillating drive, which, however, generates a swinging oscillating movement against that of the upper oscillating table.
  • the lower swing table is inclined in the same direction as the upper swing table, but its swinging movement is directed towards the higher outlet for the heaviest parts.
  • the invention is based on the object of eliminating the disadvantages of the known device and achieving better utilization of the given vibrating table surfaces without sacrificing stone selection, in order in particular to be able to read out a mixed fraction with high selectivity at the same time.
  • the solution according to the invention is characterized in that the fluidized bed tables are arranged in a rigid frame which is mounted so as to be capable of swinging, to which a common vibratory drive is assigned, the throwing swinging movement of which is directed against the stone outlet, and that the intermediate floor is inclined towards the lower end of the lower fluidized bed table.
  • the two vibrating tables are very particularly preferably arranged in parallel.
  • the threshold being at least one to two times the average grain size, but at most about half the layer thickness to be expected.
  • the upper fluidized bed table is preferably divided in the direction from the inlet towards the outlet for the lightest grain fraction into two areas of different perforations which follow one another such that the stones and heavy grain fraction can only fall through the fluid bed table in the area of coarse perforations.
  • mutually adjustable side walls for the working surface of the upper vortex are provided in the second area of the upper fluidized bed table Layer table provided, which are pivotable against each other with their ends facing the outlet for the lightest grain fraction, for the purpose of tapering the effective surface of the upper fluidized bed table against the outlet for the lightest grain fraction.
  • a chute falling against the outlet for the stones and past the slot or the zone of coarse perforations, the chute between the first region and the subsequent zone of coarse perforations or one Slit opening is adjustable.
  • the slide preferably ends approximately at a medium height between the two fluidized bed tables, and in the middle third over the length of the lower fluidized bed table.
  • an intermediate floor is arranged in the area following the first area, which is inclined towards the lower end of the lower fluidized bed table.
  • the intermediate floor is arranged so that it cuts the fluidized bed tables at an angle of 25 ° to 45 °, and that the inclination of the fluidized bed tables is 5 ° to 10 ° with respect to the horizontal.
  • the intermediate base is preferably formed by a multiplicity of flat profiles which are mounted in the housing so as to be rotatable about their longitudinal central axis, so that a corresponding mixed fraction can be set by folding down or interconnecting. This way, three fractions can be very sharp
  • the flat profiles can be set so that they touch each other when coplanar. However, they can also be graded so that an air passage opening is created between the steps.
  • the lower fluidized bed table below the intermediate floor can be designed as a channel-like depression with an air-impermeable bottom, which depression guides the heavy grain fraction into the associated outlet.
  • Particularly optimal and stable operating conditions arise when the clear exhaust air cross section is divided into zones with adjustable cross sections at a distance above the upper fluidized bed table. Each should have an adjustment flap for adjusting the air volume.
  • the shift table For an optimal functioning of the shift table, it is equipped with a large number of fine perforations, but a smooth surface. With this measure, a strong inhibitory effect is achieved for the product layer lying directly on the upper vibrating table due to the upward-promoting throwing swing movement. This creates an almost scissor-like effect on the upper table, which means that all heavy parts that have once entered the lower layer, which is prevented from flowing away quickly, cannot jump back into the upper layer either through the air or through the vibration movement. By this last measure intensifies the layer effect on the upper table. This allows the required amount of air as well as the vibration energy to be optimally used, so that a significantly higher throughput can now be processed on the same table surface or a clean stratification over a very short table length can be completed.
  • the stone reading table is designed as a good support, an air-permeable, well-impermeable mesh grid parallel and at a distance below a finely perforated plate, in between a bulkhead-like structure (sandwich), such that the lower swing table with the finely perforated plate has an approximately constant air resistance of the entire good circulation, regardless of the good layer thickness on the lower fluidized bed table.
  • the stone reading table particularly preferably has a rough surface, such that the heavy parts are conveyed for the heavy parts due to the swinging movement after the higher outlet.
  • the inhibiting effect used for the upper swing table against the throwing swing movement directed by the flow device of the product is used here with the rough surface of the stone reading table for the actual mountain-up promotion of the lower layer, which is enriched with the heaviest constituents.
  • the short section of the diarrhea for the stone selection is preferably at most one fifth of the first product-impermeable area.
  • the upper table surface is in the area of the product feed air-permeable and a short distance covered above the table surface to form an air flow in the direction of the incoming material flow.
  • the invention further relates to a method for reading out individual fractions from bulk material, in particular from grain, by means of two table surfaces inclined to the product outlets, through which the same air flows and which is set in motion together, both of which are impressed by a throwing motion in the direction of the higher table end .
  • each vibrating table receives at least 20% or more of the good during operation and thus a real fluidized bed is formed or a type of product carpet is produced, thus providing the conditions for real layering.
  • the invention further proposes to carry out the supply of goods for the stone reader in the central region thereof, the goods being thrown off locally in a veil-like manner.
  • the focus here is on the fact that a substantial part of the goods is drawn off over a short area and handed over to the lower table in a middle area, preferably the middle third, like a veil.
  • the stratification as such can be carried out almost completely over a relatively short distance or over a short period of time. After running through about half of the top table surface the stratification in heavy and light fractions completely completed. This process can also be carried out continuously with a large mass flow, the stratification even being improved as the product throughput increases.
  • the invention enables two things: firstly, a partial stream is simultaneously branched off from the entire crop stream and delivered to the stone reading table. In contrast to known methods, this means that the stone reading table is relieved of part of the load right from the start
  • the aim is that less than 50% of the material flow is thrown onto the stone reading table. It is also particularly advantageous if the material falling from the upper table surface to the lower table surface is blown with a strong air flow. This loosens up the sloping crop so that almost every grain is placed on the
  • Fluid bed of the stone reading table hits.
  • an air jet for delimiting the fluidized bed is preferably generated directly above the table surface.
  • the supply of material to the lower table surface is very particularly preferably deflected and thrown off in a direction opposite to the upper table via a slide in relation to the flow direction. This measure additionally loosens the material and also enables the air to be sucked through the two table surfaces and diverted in the area of the slide, contrary to the movement of the material.
  • the middle area of the lower table surface corresponds in the longitudinal direction thereof approximately to the area of the middle third of the table length.
  • a first subset of the rest of the goods can also be supplied over an initial section of the second Area (A) at the lower end of the stone selection table of the heavy good fraction.
  • Another possibility is that a part of the remaining material is obtained as a diarrhea in area (A) as a mixed fraction, and the lightest fraction is discharged as a push off of the upper table. This is particularly applicable when the highest demands are made on the extraction of all individual fractions.
  • the zone of the upper vibrating table (area V) which adjoins the material feed, the material flow can be pre-layered into a lower layer enriched with the heavy goods, and an overlying layer of lighter goods, after the pre-shift zone the lower layer enriched with heavy goods can be pre-layered Area "A" subtracted, and dropped on the second vibrating table underneath, namely in the middle area thereof, while the upper layer of the lighter material after the pre-shift zone and after the lower layer of heavy goods along the upper vibrating table in a subsequent second layering zone, Area "A" is again layered into a lower layer of a middle fraction and an upper layer of the very light fraction, the lower layer of the middle fraction then being thrown down through the upper vibrating table onto an intermediate floor and being fed from it to an outlet, while those on the o remaining vibrating table remaining Light fraction is released at the end of the upper vibrating table.
  • FIG. 2 shows a partial section from a top view of the lower fluidized bed table, from the device according to FIG. 1,
  • FIG. 2 shows the section III-III from FIG. 2,
  • FIG. 1 schematically shows the material flow in the device according to the invention according to FIG. 1,
  • FIG. 5 shows a detail of the device from FIG. 1,
  • FIG. 6 shows a further exemplary embodiment of a device according to the invention
  • FIG. 7 shows a corresponding representation of FIG. 1 of a further exemplary embodiment of a device according to the invention.
  • the device shown in FIG. 1 has an inlet 1 for the granular material or the raw material, which runs directly onto the higher end of an upper vortex.
  • shift table 2 falls.
  • a lower fluidized bed table 3 is installed in a common frame 4 at a distance below the upper one. Both tables are set in vibration with the frame 4 by an oscillating drive 5, for which purpose they are mounted on a frame 8 by means of a spring 6 or a height-adjustable oscillating support 7.
  • On the frame 8, two side wall parts 9 are also attached, on which an exhaust hood 10 connected to an intake line is placed. This is divided into individual zones 11 by transverse walls. Each zone 11 has an air adjustment flap 32, so that the size of the flow cross section can be set individually in each individual zone.
  • the upper fluidized bed table 2 has a light material outlet 14, whereas the lower fluidized bed table 3 is assigned a stone outlet 13, as well as one outlet 15 for the heavy fraction and one outlet 16 for the middle mixed fraction.
  • the upper fluidized bed table in a region (V) has a smooth surface with a large number of fine perforations, the region (V) of the upper table surface is permeable to air, but impermeable to the raw material. There is then a zone of coarse perforations 24 over the entire width, which can also be replaced by a passage slot across the entire width.
  • the table surface In a region (A) adjoining the coarse perforations, which extends to the light material outlet 14, the table surface also has coarse, possibly medium-coarse perforations 24 'through which the various raw material fractions can fall. It is important that the upper table does not have a sieve function, since all the diarrhea openings are larger than most of the material flow. The stratification is caused by the air flow receive. The whole lower layer falls through the rough openings. The openings can easily make up 2o to 50% of the entire table area.
  • the lower fluidized bed table 3 is permeable to air over the entire surface, but impermeable to the falling material. As FIGS. 2 and 3 show, it has a lower perforated plate 20 with a perforation 21, over which a parallel mesh 23 is arranged. In the space between the perforated plate 20 and the mesh 23, cheekboard-like bulkhead walls 22 are provided, which divide the flow cross-section for the air into rectangular channels.
  • a base 17 is essential for the separation of a medium fraction, which allows the separation of medium-heavy grains from the material falling through the upper fluidized bed table 2.
  • the bottom 17 consists of a number of flaps 18 which extend from one longitudinal wall of the frame 4 to the other and are pivotably mounted in these longitudinal walls about their longitudinal center. The length of the bottom 17 ending at the outlet 16 and thus the quantitative proportion of the medium-heavy fraction in the falling material is determined by the number of flaps 18 pivoted to one another in a coplanar manner.
  • the chute 19 conveys the portion of material enriched with the stones and with the heaviest grains, which then falls through the upper fluidized bed table 2 to the first product-permeable area against the stone outlet 13.
  • FIG. 4 shows the device again with regard to its mode of operation and the material flow occurring therein.
  • the product enters the device at the inlet 1 and is layered in a first region of the upper fluidized bed table 2.
  • the lowermost layer is thrown through the rough perforations 24 onto the slide 19 in the central region and conveyed in the direction of arrow 25 against the stone outlet 13.
  • the stones are removed from the stone outlet 13.
  • the threshold 31 is also adjusted so that it comes to lie directly above the rear end of the slide 19 '.
  • the threshold 31 also represents a stop for the heavy layer on the upper table, the diarrhea on the slide 19 is denoted by D and D ', respectively Mixed fraction can initially still be drawn off a selectable part directly by means of open flaps 18 on the stone reading table 3. This part is fed to the outlet 15 for the heavy grain fraction above the lower part of the stone reading table.
  • the slide 19 and intermediate floor 17 from one piece, that is to say without the possibility of an intermediate diarrhea on the stone reading table 3.
  • both together form a roof that is inclined on two sides.
  • the possibility of double air control of the suction air is particularly interesting for the overall function of the device.
  • the special construction of the lower fluidized bed table 3 uniform ventilation is achieved over the entire table surface, regardless of the layer thickness of the grain material.
  • the function of the upper fluidized bed table 2 requires for the areas that follow from left to right, i.e. for the product stratification, for throwing off the stones and the heavy grain fraction as well as for the separation into medium-heavy and light goods, in each case a specifically controlled and adapted amount of air, which can be adjusted by means of the adjusting flaps 32.
  • the two fluidized bed tables 2 and 3 are preferably parallel to one another and adjustable between 5 ° and 10 ° by means of the vibration support 7 with reference to a horizontal plane (angle 26).
  • the direction of oscillation of the oscillation drive 5 intersects the planes of the fluidized bed tables 2 and 3 at an angle of 25 ° to 45 ° (angle 27), whereas the plane of the bottom 17 or the plane of the slide 19 each with that of the fluidized bed tables 2 and 3 include an angle of 5 ° to 40 ° (angle 28) or an angle of 0 ° to 65 ° (angle 29).
  • the inclination of the lower fluidized bed table 3 is set in such a way that it is the most favorable for the separation of the stones through the outlet 13. As a rule, however, this should mean the inclination of the upper one
  • Fluid bed table 2 (since the two tables are firmly connected to one another by frame 4) may be less optimal for separating the other fractions.
  • the amount of the mixed fraction to be discharged through the outlet 16 can be increased or reduced, in particular in the case of large throughput differences, at the expense of the heavy grain fraction to be discharged through the outlet 15. Due to the inclination of the base 17, the material falling thereon can flow into the outlet 16 without delay, despite the opposite direction of oscillation of the oscillating drive 5.
  • the bottom 17 can also be designed in a step-like manner, suction air being able to flow from the lower fluidized bed table 3 to the upper one in the area of the steps, which facilitates a uniform air flow through it; the lightest fraction (shells, husks, etc.) is discharged as an expulsion of the upper layer table 2 through an outlet 14 '.
  • the upper end of the chute 19 lies under the area (D) directly adjoining the pre-layer area of the upper fluidized bed table table 2, through which almost all the stones fall, so that these fall as far as possible into the middle area of the lower table
  • the slide 19 is in the frame
  • a transversely oriented threshold 31 is arranged on the upper fluidized bed table 2 in the zone of coarse perforations 24.
  • the threshold 31 can also be arranged in an adjustable manner depending on the product throughput and the arrangement of the upper collecting end 19 'of the slide 19.
  • zone "V" for pre-layering the material is approximately the same length as zone "A" for separating the light fractions or a mixed fraction.
  • the lower fluidized bed table 3 also has a non-ventilated base piece 30.
  • the base piece 30 has several functions. The portion of the heavy fraction thrown from zone "A" after the slide 19 directly onto the lower fluidized bed table 3 no longer disturbs the layering process on the lower fluidized bed table 3, since no build-up can occur at this point. A second function is that the total amount of air enters through the part of the lower fluidized bed table 3 in which the air is actually used. The air only enters, or through the device, where they work.
  • the table 8a is a top view of the upper vibrating table.
  • the table has a rectangular shape in a first area "V".
  • the adjoining zone "A" becomes narrower towards the outlet in order to achieve layering
  • FIG. 8b only shows a doubling of FIG. 8a.
  • the device described is in a special way for the elimination of heavy parts, such as broken glass, fine metal parts, stones and the like. Heavy grains, broken, languid and light grains, seeds, shells, dirt and the like. suitable from cereals. However, it has also been shown that an almost identical
  • the task with compost is to remove heavy parts and light material from shredded compost, especially in the case of mature, dry waste compost, provided the material is free-flowing. In the foreground are three factions, the heavy parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Processing Of Solid Wastes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Le dispositif comporte deux tables oscillatrices (2, 3) mobiles sur leur support ce qui permet de leur imprimer un mouvement vibratoire. Ces tables présentent une inclinaison variable à volonté par rapport à l'horizontale et laissent un passage au flux d'air commun. Au-dessus de l'extrémité surélevée de la table oscillatrice supérieure (2) se situe le dispositif d'introduction (1) du grain à trier. A cette entrée correspond, à l'extrémité abaissée de cette même table oscillatrice, un dispositif de sortie (14) permettant l'évacuation de la fraction la plus légère du grain. La seconde table oscillatrice (3), disposée en dessous de la première, présente à son extrémité supérieure, surélevée, une sortie (13) destinée à évacuer les pierres contaminant au départ le grain, et à son extrémité inférieure, abaissée, un dispositif de sortie (15) permettant de recueillir la fraction lourde du grain. De plus, dans l'espace séparant les deux tables oscillatrices (2, 3) est prévue l'installation d'une glissière (19). Il s'y trouve également un plan incliné (17), plus court que les tables oscillatrices (2, 3), ce qui permet de séparer une fraction-mélange, réglable à volonté. Afin d'obtenir une telle fraction-mélange, malgré une simplicité recherchée de la construction, il est prévu de disposer les tables oscillatrices (2, 3) dans un cadre rigide (4), mais mobile sur le support. Ce cadre est mis en mouvement vibratoire au moyen d'une roue motrice (5) communiquant un mouvement excentrique dirigé vers le dispositif d'évacuation des pierres (13). Il est prévu, en outre, que le plan incliné (17) soit abaissé vers l'extrémité également abaissée de la table oscillatrice inférieure (3).
EP85901960A 1984-05-08 1985-05-08 Dispositif et procede permettant le triage separatif du grain Expired EP0181353B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85901960T ATE34674T1 (de) 1984-05-08 1985-05-08 Vorrichtung und verfahren zum trennen von koernigem gut.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2240/84 1984-05-08
CH224084 1984-05-08

Publications (2)

Publication Number Publication Date
EP0181353A1 true EP0181353A1 (fr) 1986-05-21
EP0181353B1 EP0181353B1 (fr) 1988-06-01

Family

ID=4229127

Family Applications (3)

Application Number Title Priority Date Filing Date
EP85902511A Expired EP0182831B1 (fr) 1984-05-08 1985-05-08 Installation et procede de triage de produits lourds, en particulier de pierres ou materiaux similaires, a partir de cereales et d'autres produits en vrac
EP85901960A Expired EP0181353B1 (fr) 1984-05-08 1985-05-08 Dispositif et procede permettant le triage separatif du grain
EP85810219A Expired EP0162014B1 (fr) 1984-05-08 1985-05-08 Dispositif et procédé de séparation de matières granuleuses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP85902511A Expired EP0182831B1 (fr) 1984-05-08 1985-05-08 Installation et procede de triage de produits lourds, en particulier de pierres ou materiaux similaires, a partir de cereales et d'autres produits en vrac

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP85810219A Expired EP0162014B1 (fr) 1984-05-08 1985-05-08 Dispositif et procédé de séparation de matières granuleuses

Country Status (10)

Country Link
US (2) US4652362A (fr)
EP (3) EP0182831B1 (fr)
JP (2) JPH084780B2 (fr)
KR (1) KR900001435B1 (fr)
AT (1) ATE31254T1 (fr)
AU (1) AU569011B2 (fr)
BR (1) BR8506704A (fr)
DE (3) DE3562988D1 (fr)
SU (2) SU1477237A3 (fr)
WO (2) WO1985005050A1 (fr)

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WO1985005049A1 (fr) 1985-11-21
EP0181353B1 (fr) 1988-06-01
US4652362A (en) 1987-03-24
WO1985005050A1 (fr) 1985-11-21
JPS61502041A (ja) 1986-09-18
DE3564386D1 (en) 1988-09-22
EP0182831A1 (fr) 1986-06-04
BR8506704A (pt) 1986-04-15
EP0182831B1 (fr) 1988-08-17
SU1477237A3 (ru) 1989-04-30
SU1480753A3 (ru) 1989-05-15
DE3561131D1 (en) 1988-01-21
JPH0659463B2 (ja) 1994-08-10
DE3562988D1 (en) 1988-07-07
JPH084780B2 (ja) 1996-01-24
JPS61502042A (ja) 1986-09-18
AU4403985A (en) 1985-11-28
KR900001435B1 (ko) 1990-03-10
EP0162014B1 (fr) 1987-12-09
KR860700096A (ko) 1986-03-31
ATE31254T1 (de) 1987-12-15
AU569011B2 (en) 1988-01-14
EP0162014A1 (fr) 1985-11-21
US4913804A (en) 1990-04-03

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