DE19817518A1 - Production of storage mineral components - Google Patents
Production of storage mineral componentsInfo
- Publication number
- DE19817518A1 DE19817518A1 DE1998117518 DE19817518A DE19817518A1 DE 19817518 A1 DE19817518 A1 DE 19817518A1 DE 1998117518 DE1998117518 DE 1998117518 DE 19817518 A DE19817518 A DE 19817518A DE 19817518 A1 DE19817518 A1 DE 19817518A1
- Authority
- DE
- Germany
- Prior art keywords
- starting materials
- thermally
- treated
- temperature zones
- paddle
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/706—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with all the shafts in the same receptacle
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/021—Ash cements, e.g. fly ash cements ; Cements based on incineration residues, e.g. alkali-activated slags from waste incineration ; Kiln dust cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/93—Heating or cooling systems arranged inside the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
- B28C5/466—Heating, e.g. using steam
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0418—Wet materials, e.g. slurries
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
- C04B7/26—Cements from oil shales, residues or waste other than slag from raw materials containing flue dust, i.e. fly ash
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Herstellung von Speichermineralien gemäß 197 19 684, wobei als Ausgangsstoffe Verbrennungsrückstände und wasser haltige Substanzen verwendet werden.The invention relates to a method and a device for the production of storage minerals according to 197 19 684, with combustion residues and water as raw materials containing substances are used.
Zur Vermischung von Schüttgütern mit Wasser sind Misch schnecken, Zwangsmischer und sogenannte Trommelmischer be kannt. So werden z. B. in DE 23 43 352, DE 24 41 674 und DE 35 43 745 Vorrichtungen zum Mischen von Fluiden beschrie ben, die axial innerhalb eines Gehäuses drehbare Wellen mit verschieden ausgeformten Schaufeln zur Ausbildung einer Mi scheinrichtung aufweisen, so daß nach Aufgabe der Bestand teile in ein Einspeisesystem eine homogene Mischung erzeugt wird, die am Ende des rohrförmigen Gehäuses aus dem Mischer entnommen oder abgepumpt wird. Diese Mischeinrichtungen eignen sich zur Herstellung von Mörtel, Vergußmassen und Betonen. Eine gesteuerte Wärmebehandlung der Mischungsbe standteile zur Einleitung von thermischen Reaktionen ist nicht möglich.Mixed materials are used to mix bulk goods with water screws, compulsory mixers and so-called drum mixers knows. So z. B. in DE 23 43 352, DE 24 41 674 and DE 35 43 745 Devices for mixing fluids described ben having axially rotatable shafts within a housing differently shaped blades to form a Mi have scheinrichtung so that after abandonment of the stock parts in a feed system creates a homogeneous mixture that is at the end of the tubular housing from the mixer is removed or pumped out. These mixing devices are suitable for the production of mortar, casting compounds and Emphasize. Controlled heat treatment of the mixture components for the initiation of thermal reactions not possible.
Der Erfindung liegt die Aufgabe zugrunde, ein Mischen, För dern und gesteuertes thermisches Behandeln von verschiede nen Stoffen, insbesondere von Schüttgütern, in einer Ein richtung zu gewährleisten.The invention has for its object a mixing, För and controlled thermal treatment of various substances, especially bulk goods, in one unit to ensure direction.
Dies wird erfindungsgemäß dadurch erreicht, daß gemäß 197 19 684 die Ausgangsstoffe in Form von Verbrennungsrückstän den und wasserhaltigen Substanzen über eine Aufgabevorrich tung einem länglichen Gerät aufgegeben werden, das gleich zeitig als Mischer und thermischer Reaktor arbeitet und daß mittels mehrerer Paddelwellen die Ausgangsstoffe gemischt sowie gleichzeitig gefördert und thermisch behandelt wer den, wobei die thermische Behandlung in verschiedenen Tem peraturzonen unterschiedlich realisiert und in einer Was serdampfatmosphäre unter verschiedenen Druckverhältnissen durchgeführt wird. This is achieved according to the invention in that 197 19 684 the raw materials in the form of combustion residues the and water-containing substances via a feed device an elongated device that is the same works early as a mixer and thermal reactor and that The raw materials are mixed using several paddle shafts as well as being promoted and thermally treated at the same time the, the thermal treatment in different Tem temperature zones realized differently and in one what Steam atmosphere under different pressure conditions is carried out.
Durch die Einstellung von unterschiedlichen Temperaturen in den verschiedenen Zonen des Reaktors und unterschiedlicher Verweilzeiten des Gemisches in der Vorrichtung durch die Veränderung der Fördergeschwindigkeit und die Variierung der Zonenlänge lassen sich Produkte mit unterschiedlichen Eigenschaften herstellen, die auf die vorgesehene Immobili sierung von Schadstoffen und/oder den baustofftechnischen Anwendungsfall konkret zugeschnitten sind. Die Temperaturen in den verschiedenen Zonen werden zwischen 100-400 °C eingestellt. Dabei können die Ausgangsstoffe je nach Ver wendungszweck des Produktes entweder mit in den Temperatur zonen steigenden und/oder wechselnden Temperaturen ther misch behandelt werden. Zur Initiierung der notwendigen "Keimbildung" ist es möglich, das behandelte Gut in einer Menge von 1-10% der Gesamtmenge an den Anfang der ther mischen Behandlung zurückzuführen. Es bildet sich eine Wasserdampfatmosphäre von 100-1000 l/m3 bei Drücken von 0,1 mbar bis 10 bar, vorzugsweise zwischen 1 mbar und 5 bar, aus. Die Beheizung der Vorrichtung erfolgt entweder auf gasförmiger Basis oder durch eine elektrische Heizung.By setting different temperatures in the different zones of the reactor and different dwell times of the mixture in the device by changing the conveying speed and varying the zone length, products with different properties can be produced, which are based on the intended immobilization of pollutants and / or building material application are specifically tailored. The temperatures in the different zones are set between 100-400 ° C. Depending on the intended use of the product, the starting materials can either be thermally treated with temperatures rising and / or changing in the temperature zones. To initiate the necessary "nucleation", it is possible to return the treated material in an amount of 1-10% of the total amount to the beginning of the thermal treatment. A water vapor atmosphere of 100-1000 l / m 3 is formed at pressures from 0.1 mbar to 10 bar, preferably between 1 mbar and 5 bar. The device is heated either on a gaseous basis or by an electric heater.
Die Vorrichtung zur Durchführung des Verfahrens gemäß 197 19 684 verfügt über eine Aufgabevorrichtung sowie meh rere über einen elektrischen Antrieb mit Getriebe und Lager versehene liegende Paddelwellen, die in einem beheizten länglichen Gehäuse geführt sind, welches an seinem Ende ei ne weitere abgestützte Lagerung und einen Auslaß aufweist. Das längliche Gehäuse weist eine Brüdenabsaugung mit Rück führung und 2 bis 8, vorzugsweise 4, Temperaturzonen auf. Diese sind auf einer Länge von 10-90%, vorzugsweise 10-50%, der Länge des Gehäuses angeordnet. Die Messung der Guttemperatur in den Zonen erfolgt mittels Thermoelementen. Der Wärmeeintrag erfolgt durch am Gehäuse kreisförmig ange ordnete Gasbrenner und/oder durch eine direkte und/oder in direkte elektrische Beheizung, wobei im oberen Gehäusebe reich vorzugsweise eine direkte und im unteren Gehäusebe reich eine indirekte Beheizung realisiert wird. Möglich ist auch eine Beheizung mittels Dampf. Das Gehäuse ist wärmege dämmt ausgeführt. Die Paddelwellen weisen entweder eine gleiche oder eine entgegengesetzte Drehrichtung auf und sind in ihrer Anzahl dem erforderliche Gutdurchsatz ange paßt. Die Anstellwinkel der Paddel, bezogen auf die Wel lenachse, sind einstellbar.The device for performing the method according to 197 19 684 has a feed device and meh rere via an electric drive with gears and bearings provided paddle shafts, which are in a heated elongated housing are guided, which egg at its end ne further supported storage and an outlet. The elongated housing has a vapor extraction with back leadership and 2 to 8, preferably 4, temperature zones. These are on a length of 10-90%, preferably 10-50%, arranged the length of the housing. The measurement of Material temperature in the zones is achieved using thermocouples. The heat input takes place by being circular on the housing ordered gas burner and / or by a direct and / or in direct electrical heating, being in the upper case rich preferably a direct and in the lower case indirect heating is realized. Is possible also heating with steam. The housing is warm insulated. The paddle waves either have one same or an opposite direction of rotation on and are the number of good throughput required fits. The angle of attack of the paddle, based on the wel lenachse, are adjustable.
Anhand eines Ausführungsbeispiels soll nachstehend die Er findung näher erläutert werden. Die zugehörige Zeichnung zeigt:Using an embodiment, the Er invention are explained in more detail. The associated drawing shows:
Fig. 1 die Vorrichtung im Längsschnitt Fig. 1 shows the device in longitudinal section
Fig. 2 das Gehäuse im Querschnitt. Fig. 2 shows the housing in cross section.
Die Ausgangsstoffe werden der Aufgabeeinrichtung 1 zuge führt und gelangen über diese in das Gehäuse 6 mit Paddel wellen 5, welche über einen Antrieb 2 mit Getriebe 3 ange trieben und über die Lager 4 und 7 gelagert werden. Die drehbaren Paddelwellen 5 fördern und mischen die Ausgangs stoffe gleichmäßig und gesteuert in Richtung Auslaß 8. Der Reaktor für eine Anlage von 10 t/h sollte z. B. ca. 6 m Länge und ca. 1 m im Durchmesser aufweisen.The raw materials are fed to the feeder 1 and pass through them into the housing 6 with paddle shafts 5 , which are driven by a drive 2 with a gear 3 and are stored via the bearings 4 and 7 . The rotatable paddle shafts 5 promote and mix the starting materials evenly and controlled towards the outlet 8th The reactor for a plant of 10 t / h should, for. B. about 6 m in length and about 1 m in diameter.
Das Gehäuse 6 ist wärmegedämmt und in die Temperaturzonen 1-4 eingeteilt, die mittels einer elektrischen Heizung ausgestattet sind.The housing 6 is thermally insulated and divided into the temperature zones 1-4 , which are equipped with an electric heater.
Im oberen Bereich des Gehäuses 6 ist eine direkte elektri sche und im unteren Bereich eine indirekte Heizung angeord net. Die einzustellende Temperatur liegt in den verschiede nen Zonen zwischen 100-400 °C. Die Beheizung erfolgt über ein computergesteuertes Programm für jede Zone separat. Die Temperaturzone I kann beispielsweise eine Temperatur von 150-200 °C, die Temperaturzone II von 200-300 °C, die Temperaturzone III von 300-350 °C und die Temperaturzone IV von 350-400 °C aufweisen.In the upper area of the housing 6 is a direct electrical cal and in the lower area an indirect heating angeord net. The temperature to be set in the various zones is between 100-400 ° C. Heating is carried out separately for each zone using a computer-controlled program. Temperature zone I can have, for example, a temperature of 150-200 ° C, temperature zone II of 200-300 ° C, temperature zone III of 300-350 ° C and temperature zone IV of 350-400 ° C.
Die Paddelwellen 5 sind in ihrer Drehzahl variierbar, so daß die Verweildauer des Gemisches geregelt werden kann. Im Beispielsfall kann sie 20 U/min. betragen. Je nach Ver wendungszweck des Produktes lassen sich durch die zielge richtete thermische Behandlung in den 4 Temperaturzonen bei spezieller Verweilzeit im Gehäuse 6 Stoffe erzeugen, die nahezu optimal dem beabsichtigten Verwendungszweck angepaßt sind. Diese können entweder eine hohe oder niedrige Frühhochfestigkeit, Druck-, Biegezugfestigkeit oder spezi elle Wärmedämmeigenschaften sowie sehr gute Immobilisie rungseigenschaften aufweisen. The speed of the paddle shafts 5 can be varied so that the residence time of the mixture can be regulated. In the example, it can be 20 rpm. be. Depending on the intended use of the product, the targeted thermal treatment in the 4 temperature zones with a special dwell time in the housing can produce 6 substances that are almost optimally adapted to the intended use. These can either have a high or low early high strength, compressive strength, bending tensile strength or special thermal insulation properties as well as very good immobilization properties.
11
Aufgabeeinrichtung
Feeder facility
22nd
Antrieb
drive
33rd
Getriebe
transmission
44th
Lager
camp
55
Paddelwelle
Paddle wave
66
Gehäuse
casing
77
Lagerung
storage
88th
Auslaß
Outlet
99
Brüdenabsaugung
Vapor extraction
1010th
Temperaturzone
Temperature zone
1111
Thermoelement
Thermocouple
1212th
Gasbrenner
Gas burner
1313
elektrische Heizung
electric heating
1414
oberer Bereich
upper area
1515
unterer Bereich
lower area
Claims (25)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998117518 DE19817518A1 (en) | 1997-05-09 | 1998-04-09 | Production of storage mineral components |
| SI9820045A SI20068A (en) | 1997-05-09 | 1998-05-07 | Method and device for producing storage mineral constituents to immobilize harmful substances and for producing components, specially building slabs and mixtures |
| DE19880619T DE19880619D2 (en) | 1997-05-09 | 1998-05-07 | Method and device for the production of storage mineral components for the immobilization of pollutants and for the production of components, in particular of building boards and of mixtures |
| HU0002115A HUP0002115A3 (en) | 1997-05-09 | 1998-05-07 | Method and device for producing storage mineral constituents to immobilize harmful substances and for producing components, specially building slabs and mixtures |
| PCT/EP1998/002680 WO1998051634A1 (en) | 1997-05-09 | 1998-05-07 | Method and device for producing storage mineral constituents to immobilize harmful substances and for producing components, specially building slabs and mixtures |
| EP98925550A EP0980344A1 (en) | 1997-05-09 | 1998-05-07 | Method and device for producing storage mineral constituents to immobilize harmful substances and for producing components, specially building slabs and mixtures |
| SK1536-99A SK153699A3 (en) | 1997-05-09 | 1998-05-07 | METHOD AND DEVICE FOR PRODUCING STORAGE MINERAL CONSTITUENTS TOì (54) IMMOBILIZE HARMFUL SUBSTANCES AND FOR PRODUCING COMPO |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1997119684 DE19719684C1 (en) | 1997-05-09 | 1997-05-09 | Pollutant immobilisation mineral production |
| DE1998117518 DE19817518A1 (en) | 1997-05-09 | 1998-04-09 | Production of storage mineral components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19817518A1 true DE19817518A1 (en) | 1999-10-14 |
Family
ID=26036463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1998117518 Withdrawn DE19817518A1 (en) | 1997-05-09 | 1998-04-09 | Production of storage mineral components |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19817518A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321350A1 (en) * | 2003-05-13 | 2005-01-13 | Lurgi Ag | mixing device |
-
1998
- 1998-04-09 DE DE1998117518 patent/DE19817518A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321350A1 (en) * | 2003-05-13 | 2005-01-13 | Lurgi Ag | mixing device |
| DE10321350B4 (en) * | 2003-05-13 | 2005-04-21 | Lurgi Ag | mixing device |
| US7677788B2 (en) | 2003-05-13 | 2010-03-16 | Lurgi Lentjes Ag | Curved blade mixing device |
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| Date | Code | Title | Description |
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| AF | Is addition to no. |
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| 8122 | Nonbinding interest in granting licences declared | ||
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