EP0067277A2 - Apparatus for dehydrating and drying a crushed synthetic material waste - Google Patents

Apparatus for dehydrating and drying a crushed synthetic material waste Download PDF

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Publication number
EP0067277A2
EP0067277A2 EP82102397A EP82102397A EP0067277A2 EP 0067277 A2 EP0067277 A2 EP 0067277A2 EP 82102397 A EP82102397 A EP 82102397A EP 82102397 A EP82102397 A EP 82102397A EP 0067277 A2 EP0067277 A2 EP 0067277A2
Authority
EP
European Patent Office
Prior art keywords
air
rotor
housing
bulk material
drying
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
EP82102397A
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German (de)
French (fr)
Other versions
EP0067277B1 (en
EP0067277A3 (en
Inventor
Dietmar Wettengl
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.)
Fried Krupp AG
Original Assignee
Krupp Industrietechnik Werk Buckau Wolf
Fried Krupp 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 Industrietechnik Werk Buckau Wolf, Fried Krupp AG filed Critical Krupp Industrietechnik Werk Buckau Wolf
Priority to AT82102397T priority Critical patent/ATE13945T1/en
Publication of EP0067277A2 publication Critical patent/EP0067277A2/en
Publication of EP0067277A3 publication Critical patent/EP0067277A3/en
Application granted granted Critical
Publication of EP0067277B1 publication Critical patent/EP0067277B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/08—Drying solid materials or objects by processes not involving the application of heat by centrifugal treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
    • F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00

Definitions

  • the invention relates to a device for dewatering and drying bulk goods, in particular crushed plastic waste, with a rotor arranged in an elongated housing
  • the invention has for its object to improve the mechanical drying effect in the drying of shredded plastic waste.
  • the free cross-section of the strainer basket is reduced more and more by dirt or fine parts.
  • the dirt on the outside can be removed by mechanical cleaning.
  • mechanical cleaning is not necessary, since the high air speed at the outlet through the free cross-section of the strainer also means that automatic cleaning is available.
  • the occupation of the strainer basket by dirt parts is therefore excluded and can be regarded as a further advantage of the invention.
  • a fixed screen basket 4 with stiffening ribs 5 is provided, to which one or more air intake connections 6 with a fan 7 are connected. This is indicated on one end Housing 1 has a good inlet 8 and a good outlet 9 on the opposite side.
  • a rotor 10, which is connected to a shaft 11 and is rotatably supported in bearings 15, 16 is located within the strainer basket 4. The drive of the rotor is not shown. Furthermore, the rotor 10 is divided into chambers 10a, not shown, which cause a zigzag path 12 of the material to be dried through the housing 1.
  • the air supplied to dry the material via the nozzle 6 is drawn off after utilization and absorption of the moisture via one or more nozzles 13, which are arranged on the housing 1 depending on the air flow.
  • a fan 14 can also be provided here, which supports the pressure effect of the fan 7 by suction.
  • the or the.Stutzen 14 can be arranged so that the air is guided in countercurrent or cross-flow to the good. that is, in countercurrent, the air is guided axially against the good direction through the housing 1 and in cross flow, the air is guided radially through the housing 1. In the area of the product inlet 8, no air inlets or outlets are provided, because only mechanical dewatering of the product to be dried is carried out in the front region of the housing 1.
  • the connecting pieces 6 are expediently connected to an opening 17 of the strainer basket 4 in order to thus introduce the air required for drying into the channel 18, which is formed by the strainer basket 4 and the rotor 10, without great hindrance.

Abstract

1. Apparatus for dehydrating and drying crushed synthetic material waste, having arranged in an oblong housing (1) a rotor (10) with material guide- and air suction arrangements distributed over the circumference of the rotor and staggered in the longitudinal direction of the rotor, and having inside the housing (1) a strainer basket (4) which encloses the rotor (10) with a space inbetween and which forms with the outside diameter of the rotor an annular gap, the synthetic material waste being conveyable inside the annular gap through the action of rotor rotation from one end of the housing having a bulk material inlet (8) to the other end of the housing having a bulk material outlet (9), and having an arrangement for supplying air to the annular gap for drying the synthetic material waste, characterised in that over approximately 2/3 of the length of that portion of the apparatus which faces the material delivery the upper region of the strainer basket (4) ist provided with several openings (17) to which in order to form the air supply arrangement there is connected in each case an air intake (6, 6a, 6b, 6c) which passes through the housing (1), and in that there is associated with each air intake (6, 6a, 6b, 6c) an air outlet (13) arranged in the housing (1) outside the strainer basket (4).

Description

Die Erfindung betrifft eine Vorrichtung zum Entwässern und Trocknen von Schüttgut, insbesondere zerkleinerten Kunststoffabfällen, mit einem in einem länglichen Gehäuse angeordneten RotorThe invention relates to a device for dewatering and drying bulk goods, in particular crushed plastic waste, with a rotor arranged in an elongated housing

mit über den Rotorumfang verteilten und in Rotorlängsrichtung gestaffelten Gutleit- und Luftsaugeinrichtungen und einem innerhalb des Gehäuses den Rotor mit Abstand umschließenden, einen Ringspalt bildenden Siebkorb, innerhalb dessen das Schüttgut durch Wirkung der Rotordrehung von einem Gehäuseende mit Schüttguteinlaß bis zum anderen Gehäuseende mit Schüttgutauslaß transportierbar ist, und ein Lufteinlaßstutzen zum Zuführen von Luft in den Ringspalt für'die Trocknung des Schüttgutes vorgesehen ist.with material guiding and air suction devices distributed over the rotor circumference and staggered in the longitudinal direction of the rotor and a sieve basket enclosing the rotor at a distance, forming an annular gap, within which the bulk material can be transported from one housing end with bulk material inlet to the other housing end with bulk material outlet by the effect of the rotor rotation , and an air inlet nozzle for supplying air into the annular gap for drying the bulk material is provided.

Bei derartigen Vorrichtungen (DE-OS 28 50 584) sollen alle Schüttgutteilchen gleich lange Trockenstrecken mit jeweils gleichen Trockenbedingungen zurücklegen.In devices of this type (DE-OS 28 50 584), all bulk material particles should cover drying sections of the same length, each with the same drying conditions.

Diese bekannten Vorrichtungen weisen den Nachteil auf, daß die darin vorhandene Luft mit Feuchtigkeit gesättigt ist und nicht exakt abgeschieden werden kann. Ein weiterer Nachteil ist darin zu sehen, daß die gesättigte Luft in der Zone der thermischen Trocknung zusätzlich aufgeheizt werden muß, was einen unnötigen Energieaufwand erfordert.These known devices have the disadvantage that the air present therein is saturated with moisture and cannot be separated exactly. Another disadvantage is that the saturated air in the thermal drying zone must be additionally heated, which requires an unnecessary expenditure of energy.

Die mechanische und thermische Trocknung bei derartigen Vorrichtungen räumlich zu trennen, ist bekannt (DE-AS 25 25 750). Auch sind reine mechanische Trockner zum Entwässern und Trocknen derartiger Schüttgutteilchen bekannt (DE-PS 21 26 069).Separating the mechanical and thermal drying in such devices spatially is known (DE-AS 25 25 750). Pure mechanical dryers for dewatering and drying such bulk material particles are also known (DE-PS 21 26 069).

Der Erfindung liegt die Aufgabe zugrunde, den mechanischen Trocknungseffekt bei der Trocknung von zerkleinerten Kunststoffabfällen zu verbessern.The invention has for its object to improve the mechanical drying effect in the drying of shredded plastic waste.

Diese Aufgabe wird dadurch gelöst, daß ein oder mehrere Luftstutzen in dem dem Gutaustrag zugewandten Teil des Gehäuses angeordnet sind.This object is achieved in that one or more air sockets are arranged in the part of the housing facing the discharge of material.

Mit dieser Maßnahme wird erreicht, daß das an den Schnitzeln anhaftende Wasser von der Luft bis zum Sättigungsgrad aufgenommen und abgeführt wird. 6This measure ensures that the water adhering to the chips is taken up by the air and discharged to the degree of saturation. 6

Beim Eintritt in den Entwässerungsraum wird durch hohe Beschleunigung des Materials ein Großteil des Wassers durch die Zentrifugalkraft vom trocknen Material getrennt. Das Wasser tritt durch den Siebkorb nach außen. Gleichzeitig entsteht eine Luftatmosphäre mit einer hundertprozentigen Luftsättigung. Durch den Transport des Materials entsteht automatisch eine Luftströmung. Wird auf der Eingangsseite zusätzlich Luft aufgegeben, so ist nach kurzer Wegstrecke diese Luft ebenfalls hundertprozentig gesättigt. Der mechanische Trocknungseffekt nimmt dadurch sehr schnell ab, da durch die hundertprozentige Luftsättigung ein Großteil des Wassers mit dem Material geschleppt wird und - wie Versuche gezeigt haben - bis zum Austrag gelangt. Der mechanische Trocknungseffekt bzw. Trenneffekt wird dadurch stark gemindert.When entering the drainage room, a large part of the water is separated from the dry material by centrifugal force due to the high acceleration of the material. The water escapes through the strainer basket. At the same time, an air atmosphere is created with 100 percent air saturation. An air flow is created automatically when the material is transported. If additional air is added on the inlet side, this air is also fully saturated after a short distance. The mechanical drying effect decreases very quickly, because the 100% air saturation means that a large part of the water is dragged with the material and - as tests have shown - reaches the point of discharge. The mechanical drying effect or separation effect is greatly reduced.

Durch Einblasen von zusätzlicher Luft tangential in den Siebkorb wird erreicht, daß diese Luft im Quer- bzw. Gegenstrombereich des Eintritts durch den Siebkorb hindurch austritt. Dabei wird stufenweise, bedingt durch die hintereinandergeschalteten Eintrittsöffnungen, die hundertprozentige Luftfeuchtigkeit abgebaut und der mechanische Entwässerungsgrad wesentlich verbessert. Durch diese Maßnahme kann bei geringem elektrischem Energieaufwand die Restfeuchte des Materials wesentlich gesenkt werden, so daß die nachgeschaltete thermische Trocknung kleiner ausgelegt werden kann. Die strikte Trennung zwischen mechanischer Trocknung und thermischer Trocknung erbringt eine weitere Verbesserung des Wirkungsgrades, weil das Aufheizen von gesättigter Luft verhindert wird.By blowing additional air tangentially into the strainer basket, it is achieved that this air exits through the strainer basket in the cross-flow or counterflow region of the inlet. In doing so, the 100% humidity is gradually reduced, due to the inlet openings connected in series, and the degree of mechanical drainage is significantly improved. This measure allows the residual moisture of the material to be significantly reduced with little electrical energy expenditure, so that the downstream thermal drying can be designed to be smaller. The strict separation between mechanical drying and thermal drying leads to a further improvement in efficiency because the heating of saturated air is prevented.

Im normalen Betrieb wird durch Schmutzteile bzw. Feinteile der freie Querschnitt des Siebkorbes mehr und mehr verringert. Durch eine mechanische Reinigung kann die an der Außenseite liegende Verschmutzung abgetragen werden. Durch das Einbringen der großen Luftmengen ist in diesem Falle die mechanische Reinigung nicht erforderlich, da durch die hohe Luftgeschwindigkeit beim Austritt durch den freien Querschnitt des Siebkorbes zusätzlich eine automatische Reinigung vorhanden ist. Die Belegung des Siebkorbes durch Schmutzteile ist damit ausgeschlossen und als weiterer Vorteil der Erfindung anzusehen.In normal operation, the free cross-section of the strainer basket is reduced more and more by dirt or fine parts. The dirt on the outside can be removed by mechanical cleaning. By introducing the large amounts of air in this case mechanical cleaning is not necessary, since the high air speed at the outlet through the free cross-section of the strainer also means that automatic cleaning is available. The occupation of the strainer basket by dirt parts is therefore excluded and can be regarded as a further advantage of the invention.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im nachfolgenden näher beschrieben.An embodiment of the invention is shown in the drawing and is described in more detail below.

Es zeigt:

  • Fig. 1 einen Längsschnitt durch die Vorrichtung,
  • Fig. 2 einen Querschnitt durch die Vorrichtung.
It shows:
  • 1 shows a longitudinal section through the device,
  • Fig. 2 shows a cross section through the device.

In einem auf Stelzen 2 stehenden Gehäuse 1 mit Staubaustrag 3 ist ein feststehender Siebkorb 4 mit Versteifungsrippen 5 vorgesehen, an dem ein oder mehrere Luftansaugstutzen 6 mit Ventilator 7 angeschlossen sind. An einer Stirnseite weist das Gehäuse 1 einen Guteinlaß 8 und an der entgegengesetzten Seite einen Gutauslaß 9 auf. Innerhalb des Siebkorbes 4 befindet sich ein mit einer Welle 11 verbundener Rotor 10, der in Lagern 15, 16 drehbar abgestützt ist. Der Antrieb des Rotors ist nicht dargestellt. Des weiteren ist der Rotor 10 in nicht näher dargestellten Kammern 10a aufgeteilt, die einen zickzackförmigen Weg 12 des zu trocknenden Gutes durch das Gehäuse 1 bewirken. Die zur Trocknung des Gutes über die Stutzen 6 zugeführte Luft wird nach Ausnutzung und Aufnahme der Feuchtigkeit über einen oder mehrere Stutzen 13 abgezogen, die je nach Luftführung am Gehäuse 1 angeordnet sind. Dabei kann auch hier ein Ventilator 14 vorgesehen sein, der die Druckwirkung des Ventilators 7 durch Saugwirkung unterstützt. Der oder die.Stutzen 14 können so angeordnet sein, daß die Luft im Gegenstrom bzw. im Querstrom zum Gut geführt ist, . das heißt, im Gegenstrom wird die Luft axial entgegen der Gutrichtung durch das Gehäuse 1 geführt und im Querstrom wird die Luft radial durch das Gehäuse 1 geführt. Im Bereich des Guteinlasses 8 sind keine Luftein- oder Austrittsstutzen vorgesehen, weil hier im vorderen Bereich des Gehäuses 1 lediglich eine mechanische Entwässerung des zu trocknenden Gutes durchgeführt wird.In a housing 1 standing on stilts 2 with dust discharge 3, a fixed screen basket 4 with stiffening ribs 5 is provided, to which one or more air intake connections 6 with a fan 7 are connected. This is indicated on one end Housing 1 has a good inlet 8 and a good outlet 9 on the opposite side. A rotor 10, which is connected to a shaft 11 and is rotatably supported in bearings 15, 16 is located within the strainer basket 4. The drive of the rotor is not shown. Furthermore, the rotor 10 is divided into chambers 10a, not shown, which cause a zigzag path 12 of the material to be dried through the housing 1. The air supplied to dry the material via the nozzle 6 is drawn off after utilization and absorption of the moisture via one or more nozzles 13, which are arranged on the housing 1 depending on the air flow. A fan 14 can also be provided here, which supports the pressure effect of the fan 7 by suction. The or the.Stutzen 14 can be arranged so that the air is guided in countercurrent or cross-flow to the good. that is, in countercurrent, the air is guided axially against the good direction through the housing 1 and in cross flow, the air is guided radially through the housing 1. In the area of the product inlet 8, no air inlets or outlets are provided, because only mechanical dewatering of the product to be dried is carried out in the front region of the housing 1.

Zweckmäßigerweise sind die Stutzen 6 an einer Öffnung 17 des Siebkorbes 4 angeschlossen, um somit die zur Trocknung benötigte Luft ohne große Behinderung in den Kanal 18 einzuführen, der vom Siebkorb 4 und dem Rotor 10 gebildet ist.The connecting pieces 6 are expediently connected to an opening 17 of the strainer basket 4 in order to thus introduce the air required for drying into the channel 18, which is formed by the strainer basket 4 and the rotor 10, without great hindrance.

Claims (6)

1.) Vorrichtung zum Entwässern und Trocknen von Schüttgut, insbesondere zerkleinerten Kunststoffabfällen, mit einem in einem länglichen Gehäuse angeordneten Rotor mit über den Rotorumfang verteilten und in Rotorlängsrichtung gestaffelten Gutleit- und Luftsaug-einrichtungen und einem innerhalb des Gehäuses den Rotor mit Abstand umschließenden, einen Ringspalt bildenden Siebkorb, innerhalb dessen das Schüttgut durch Wirkung der Rotordrehung von einem Gehäuseende mit Schüttguteinlaß bis zum anderen Gehäuseende mit Schüttgutauslaß transportierbar ist, und ein Lufteinlaßstutzen zum Zuführen von Luft in den Ringspalt für die Trocknung des Schüttgutes vorgesehen ist, dadurch gekennzeichnet, daß ein oder mehrere Luftstutzen in dem dem Gutaustrag zugewandten Teil des Gehäuses angeordnet sind.1.) Apparatus for dewatering and drying bulk material, in particular comminuted plastic waste, with a rotor arranged in an elongated housing with material-guiding and air suction devices distributed over the rotor circumference and staggered in the longitudinal direction of the rotor, and one which encloses the rotor by a distance within the housing Sieve basket forming an annular gap, within which the bulk material can be transported by the effect of the rotor rotation from one housing end with bulk material inlet to the other housing end with bulk material outlet, and an air inlet nozzle for supplying air into the annular gap for drying the bulk material is provided, characterized in that one or several air sockets are arranged in the part of the housing facing the discharge of material. 2.) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Luftstutzen über einen Bereich von ca. 2/3 Länge des dem Gutaustrag zugewandten Teiles des Gehäuses verteilt sind.2.) Device according to claim 1, characterized is characterized in that the air nozzles are distributed over an area of approximately 2/3 length of the part of the housing facing the discharge of material. 3.) Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß jedem Lufteintrittsstutzen ein Luftaustrittsstutzen zugeordnet ist.3.) Device according to claims 1 and 2, characterized in that each air inlet port is assigned an air outlet port. 4.) Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Luft in den inneren Bereich des Siebkorbes einbringbar ist.4.) Device according to claims 1 to 3, characterized in that the air can be introduced into the inner region of the screen basket. 5.) Vorrichtung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Luftzuführung derart angeordnet ist, daß sich ein Gegenstrom bzw. ein Querstrom der Luft zum Schüttgut einstellt.5.) Device according to claims 1 to 4, characterized in that the air supply is arranged such that a counterflow or a cross flow of the air to the bulk material is established. 6.) Vorrichtung nach den Ansprüchen 4 und 5, dadurch gekennzeichnet, daß die Lufteintritts- und Luftaustrittsstutzen derart angeordnet sind, daß die austretende Luft den Siebkorb zwangsweise von innen nach außen durchströmt.6.) Device according to claims 4 and 5, characterized in that the air inlet and outlet ports so are arranged so that the escaping air forcibly flows through the screen basket from the inside to the outside.
EP82102397A 1981-06-13 1982-03-23 Apparatus for dehydrating and drying a crushed synthetic material waste Expired EP0067277B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82102397T ATE13945T1 (en) 1981-06-13 1982-03-23 DEWATERING AND DRYING DEVICE FOR SHREDDED PLASTIC WASTE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3123592 1981-06-13
DE19813123592 DE3123592A1 (en) 1981-06-13 1981-06-13 DEVICE FOR DRYING AND DRYING CRUSHED PLASTICS

Publications (3)

Publication Number Publication Date
EP0067277A2 true EP0067277A2 (en) 1982-12-22
EP0067277A3 EP0067277A3 (en) 1983-07-06
EP0067277B1 EP0067277B1 (en) 1985-06-19

Family

ID=6134699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82102397A Expired EP0067277B1 (en) 1981-06-13 1982-03-23 Apparatus for dehydrating and drying a crushed synthetic material waste

Country Status (6)

Country Link
EP (1) EP0067277B1 (en)
AT (1) ATE13945T1 (en)
CS (1) CS230594B2 (en)
DD (1) DD202207A5 (en)
DE (1) DE3123592A1 (en)
PL (1) PL236910A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210152A (en) * 1987-09-23 1989-06-01 Foxfield Walkden Equipment Ltd Drying particulate material
US6440169B1 (en) * 1998-02-10 2002-08-27 Dimso Interspinous stabilizer to be fixed to spinous processes of two vertebrae

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608026C1 (en) * 1986-03-11 1986-12-11 AUTOMATIK Apparate-Maschinenbau GmbH, 8754 Großostheim Device for dewatering and drying solids, especially underwater granulated plastics
DE102015007912A1 (en) * 2015-06-20 2016-12-22 Heinrich Buzga Apparatus and method for treating in particular kleinstückigem bulk material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458045A (en) * 1966-08-26 1969-07-29 Gala Inc Centrifugal pellet drier
DE2454208A1 (en) * 1974-11-15 1976-05-26 Loedige Maschbau Gmbh Geb DEVICE FOR THE HEAT TREATMENT OF BUCKET GUARDS
CH620859A5 (en) * 1977-04-22 1980-12-31 Kensaku Nakamura System for reclaiming plastics
DE3028687A1 (en) * 1980-07-29 1982-05-19 Buckau-Walther AG, 4048 Grevenbroich Shredded plastics waste dryer - has annular chambers in rotor between opposite vanes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3458045A (en) * 1966-08-26 1969-07-29 Gala Inc Centrifugal pellet drier
DE2454208A1 (en) * 1974-11-15 1976-05-26 Loedige Maschbau Gmbh Geb DEVICE FOR THE HEAT TREATMENT OF BUCKET GUARDS
CH620859A5 (en) * 1977-04-22 1980-12-31 Kensaku Nakamura System for reclaiming plastics
DE3028687A1 (en) * 1980-07-29 1982-05-19 Buckau-Walther AG, 4048 Grevenbroich Shredded plastics waste dryer - has annular chambers in rotor between opposite vanes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210152A (en) * 1987-09-23 1989-06-01 Foxfield Walkden Equipment Ltd Drying particulate material
GB2210152B (en) * 1987-09-23 1991-01-16 Foxfield Walkden Equipment Ltd Drying apparatus
US6440169B1 (en) * 1998-02-10 2002-08-27 Dimso Interspinous stabilizer to be fixed to spinous processes of two vertebrae

Also Published As

Publication number Publication date
CS230594B2 (en) 1984-08-13
EP0067277B1 (en) 1985-06-19
EP0067277A3 (en) 1983-07-06
DD202207A5 (en) 1983-08-31
ATE13945T1 (en) 1985-07-15
DE3123592A1 (en) 1982-12-30
PL236910A1 (en) 1983-02-14

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