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DE1111154B - Device for evaporating volatile components from plastic, elastic or viscous substances - Google Patents

Device for evaporating volatile components from plastic, elastic or viscous substances

Info

Publication number
DE1111154B
DE1111154B DEF30764A DEF0030764A DE1111154B DE 1111154 B DE1111154 B DE 1111154B DE F30764 A DEF30764 A DE F30764A DE F0030764 A DEF0030764 A DE F0030764A DE 1111154 B DE1111154 B DE 1111154B
Authority
DE
Germany
Prior art keywords
screws
housing
pairs
elastic
plastic
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.)
Pending
Application number
DEF30764A
Other languages
German (de)
Inventor
Dipl-Ing Rudolf Erdmenger
Walter Oetke
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.)
Bayer AG
Original Assignee
Bayer 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
Priority to NL262464D priority Critical patent/NL262464A/xx
Priority to NL136124D priority patent/NL136124C/xx
Application filed by Bayer AG filed Critical Bayer AG
Priority to DEF30764A priority patent/DE1111154B/en
Priority to FR854765A priority patent/FR1286995A/en
Priority to GB8522/61A priority patent/GB918158A/en
Priority to US94327A priority patent/US3118744A/en
Publication of DE1111154B publication Critical patent/DE1111154B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/405—Intermeshing co-rotating screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/41—Intermeshing counter-rotating screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Drying Of Solid Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Description

INTERNAT. EL·. B 01 jINTERNAT. EL ·. B 01 j

DEUTSCHESGERMAN

PATENTAMTPATENT OFFICE

F30764IVa/12gF30764IVa / 12g

ANMELDETAG: 16. MARZ 1960 REGISTRATION DATE: MARCH 16, 1960

BEKANNTMACHUNG
DER ANMELDUNG
UNDAUSGABEDER
AUSLEGESCHRIFT: 20. JULI 1961 NOTICE
THE REGISTRATION
ANDOUTPUTE
EDITORIAL: JULY 20, 1961

Eine bekannte Vorrichtung, die zum Verdampfen von flüchtigen Bestandteilen aus plastischen, elastischen oder zähflüssigen, beispielsweise polymerisierten Stoffen verwendet werden kann, besteht aus einem trogartigen, mit Ausdampföffnungen versehenen, heizbaren Gehäuse mit mehreren ineinandergreifenden, vorzugsweise im gleichen Drehsinn umlaufenden Förderschnecken, die an der beheizten Innenwand des Gehäuses angeordnet sind.A known device for the evaporation of volatile constituents from plastic, elastic or viscous, for example polymerized substances can be used, consists of a trough-like, heated housing provided with evaporation openings with several interlocking, preferably rotating conveyor screws in the same direction of rotation, which are attached to the heated Inner wall of the housing are arranged.

Bei Vorrichtungen dieser Art drängen sich häufig die während des Verdampfungsvorgangs aufblähenden Produkte in die Ausdampfungsöffnungen hinein, wobei sie noch zusätzlich durch radiale Komponenten getrieben werden. Der Aufblähvorgang tritt in verstärktem Maße beim Arbeiten unter Vakuum ein. Die Ausdampfungsöffnungen verstopfen sich nach und nach, da das in sie hineingedrängte Produkt um so langsamer zu den Förderschnecken zurückfließen kann, je steifer es durch Dampfabgabe oder Nachpolymerisation geworden ist. Das träge Zurückfließen der Stoffanteile bringt die Gefahr mit sich, daß diese sich chemisch verändern und die Qualität der Fertigprodukte verschlechtern.In devices of this type, those that inflate during the evaporation process often crowd Products into the evaporation openings, whereby they are additionally carried out by radial components to be driven. The inflation process occurs to a greater extent when working under vacuum. The evaporation openings gradually become clogged as the product that has penetrated them overflows the slower it can flow back to the screw conveyors, the more rigid it is due to the release of steam or post-polymerization has become. The sluggish flow back of the material fractions brings with it the danger that these change chemically and degrade the quality of the finished products.

Es wurde nun gefunden, daß diese Nachteile behoben sind, wenn in einem Gehäuse vier Schnecken verwendet werden, von denen jeweils die beiden äußeren zu aus gleichsinnig rotierenden, ineinandergreifenden Einzelschnecken bestehenden Paaren zusammengefaßt sind, wobei die beiden Paare ihrerseits in einem entgegengesetzten Drehsinn angetrieben werden und symmetrisch zur Längsachse des Gehäuses derart angeordnet sind, daß die innersten Schnecken der Paare sich längsseits am Außendurchmesser berühren. Die Schneckenpaare können in einer waagerechten Ebene angeordnet sein, sie können aber auch in Ebenen liegen, die zueinander einen nach oben geöffneten Winkel bilden. Hierdurch wird erreicht, daß die Masse von den Schneckenpaaren über die Heizwände des Gehäuses gleichmäßig in dünner Schicht verstrichen, dann in den Raum zwischen die beiden Schneckenpaare zu einer Wulst, die frei im Ausdampfungsschacht liegt, eingezogen und wieder nach entgegengesetzten Seiten über die Heizwände des Gehäuses verstrichen wird. Das Material wird also in zwei Kreisläufen geführt, die sich in der Mitte des Schachtes berühren.It has now been found that these disadvantages are eliminated when four screws in one housing are used, of which the two outer ones to rotate in the same direction, interlocking Single snails existing pairs are combined, with the two pairs in turn are driven in an opposite direction of rotation and symmetrical to the longitudinal axis of the housing are arranged in such a way that the innermost screws of the pairs run alongside on the outer diameter touch. The screw pairs can be arranged in a horizontal plane, they can but also lie in planes that form an upwardly open angle to one another. This will achieved that the mass of the screw pairs over the heating walls of the housing evenly in thin layer, then into the space between the two pairs of screws to form a bead, which lies free in the evaporation shaft, is drawn in and again to opposite sides over the Heating walls of the housing is elapsed. The material is thus conducted in two cycles, the touch in the middle of the shaft.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes schematisch dargestellt.An exemplary embodiment of the subject matter of the invention is shown schematically in the drawing.

Abb. 1 zeigt einen Längsschnitt durch die Verdampfungsvorrichtung, .Fig. 1 shows a longitudinal section through the evaporation device, .

Abb. 2 einen Querschnitt durch diese Vorrichtung.Fig. 2 shows a cross section through this device.

Im trogartigen Gehäuse 1, das mit einem Heizvorrichtung zum Verdampfen flüchtigerIn the trough-like housing 1, which is volatile with a heating device for evaporation

Bestandteile aus plastischen, elastischenComponents made of plastic, elastic

oder zähflüssigen Stoffenor viscous substances

Anmelder:Applicant:

Farbenfabriken Bayer Aktiengesellschaft,
Leverkusen-BayerwerkPaint factories Bayer Aktiengesellschaft,
Leverkusen-Bayerwerk

Dipl.-Ing. Rudolf Erdmenger, Bergisch-Gladbach,Dipl.-Ing. Rudolf Erdmenger, Bergisch-Gladbach,

und Walter Oetke, Leverkusen-Wiesdorf,and Walter Oetke, Leverkusen-Wiesdorf,

sind als Erfinder genannt wordenhave been named as inventors

mantel 10 versehen ist, laufen an den Innenwänden die Schneckenpaare 2 und 2 a bzw. 3 und 3 a um; sowohl die Paare 2 und 2 a als auch 3 und 3 a laufen an sich im gleichen Drehsinn, jedoch ist der Drehsinn der Paare zueinander entgegengesetzt, wie aus den Pfeilen hervorgeht. Das Material wird durch den StutzenS des Gehäuses auf die Schnecken gegeben, von den Schneckenpaaren im Spalt 6 (Abb. 2) erfaßt und nach beiden Seiten an den beheizten Wänden entlanggeführt, wonach die flüchtigen Bestandteile durch den Abdampfungsschacht 7 nach oben entweichen. Die Masse wird auf beiden Seiten des Gehäuses von jedem der Walzenpaare 2 und 2 a bzw. 3 und 3 α während des axialen Transportes schräg nach unten zur Mitte zwischen die Schneckenpaare gefördert, wo sich eine Wulst 8 bildet. Diese Materialwulst wird zwischen den innersten Schneckenwellen 2 a und 3 α nach und nach eingezogen und nimmt in Förderrichtung der Schnecken entsprechend der fortschreitenden Eindickung des Materials allmählich ab. Das Konzentrat wird durch die Gehäuseöffnung 9 ausgepreßt.jacket 10 is provided, the screw pairs 2 and 2 a or 3 and 3 a run on the inner walls; both the pairs 2 and 2a as well as 3 and 3a run in the same sense of rotation, but the sense of rotation of the pairs is opposite to one another, as can be seen from the arrows. The material is placed on the screws through the socket S of the housing, grasped by the screw pairs in the gap 6 (Fig. 2) and guided along the heated walls on both sides, after which the volatile components escape upwards through the evaporation shaft 7. The mass is conveyed on both sides of the housing by each of the roller pairs 2 and 2 a or 3 and 3 α during the axial transport obliquely downwards to the center between the screw pairs, where a bead 8 is formed. This bead of material is gradually drawn in between the innermost screw shafts 2 a and 3 α and gradually decreases in the conveying direction of the screws in accordance with the progressive thickening of the material. The concentrate is pressed out through the housing opening 9.

Claims (2)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Vorrichtung zum Verdampfen flüchtiger Bestandteile aus plastischen, elastischen oder zähflüssigen Stoffen, bestehend aus einem trogartigen, heizbaren Gehäuse mit mehreren Förderschnecken und mit Ausdampfungsöffnungen, wobei die Schnecken an der beheizten Innenwand des Gehäuses angeordnet sind, dadurch gekennzeichnet, 1. Device for evaporating volatile constituents from plastic, elastic or viscous substances, consisting of a trough-like, heatable housing with several conveyor screws and with evaporation openings, the screws being arranged on the heated inner wall of the housing, characterized in that, 109 648/368109 648/368 daß in dem Gehäuse vier Schnecken angeordnet sind, von denen jeweils die beiden äußeren zu Paaren, die aus gleichsinnig rotierenden, ineinandergreifenden Einzelschnecken bestehen, zusammengefaßt sind, wobei jedes Paar zum anderen im entgegengesetzten Drehsinn rotiert und wobei die innersten Schnecken der Paare sich längsseits am AuBendurchmesser berühren.that four screws are arranged in the housing, of which the two outer ones are closed Pairs, which consist of co-rotating, interlocking single screws, summarized with each pair rotating in opposite directions to the other and the innermost screws of the pairs touching one another alongside one another at the outer diameter. .. . ... 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Schneckenpaare in Ebenen liegen, die einen nach oben geöffneten Winkel zueinander bilden.2. Apparatus according to claim 1, characterized in that the screw pairs in planes lie, which form an upwardly open angle to each other. In Betracht gezogene Druckschriften:
Deutsche Patentschriften Nr. 813154, 915 689, 086.Considered publications:
German Patent Nos. 813154, 915 689, 086. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEF30764A 1960-03-16 1960-03-16 Device for evaporating volatile components from plastic, elastic or viscous substances Pending DE1111154B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL262464D NL262464A (en) 1960-03-16
NL136124D NL136124C (en) 1960-03-16
DEF30764A DE1111154B (en) 1960-03-16 1960-03-16 Device for evaporating volatile components from plastic, elastic or viscous substances
FR854765A FR1286995A (en) 1960-03-16 1961-03-07 Device for evaporation of volatile constituents in plastics, elastic or viscous materials
GB8522/61A GB918158A (en) 1960-03-16 1961-03-08 An apparatus for evaporating volatile constituents from plastic, elastic and viscous materials
US94327A US3118744A (en) 1960-03-16 1961-03-08 Apparatus for evaporating volatile constituents from plastic, elastic and viscous materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF30764A DE1111154B (en) 1960-03-16 1960-03-16 Device for evaporating volatile components from plastic, elastic or viscous substances

Publications (1)

Publication Number Publication Date
DE1111154B true DE1111154B (en) 1961-07-20

Family

ID=7093905

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF30764A Pending DE1111154B (en) 1960-03-16 1960-03-16 Device for evaporating volatile components from plastic, elastic or viscous substances

Country Status (4)

Country Link
US (1) US3118744A (en)
DE (1) DE1111154B (en)
GB (1) GB918158A (en)
NL (2) NL136124C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1529994B1 (en) * 1965-06-26 1970-08-20 Kestermann Maschf Rolf Screw extruder
DE1554751B1 (en) * 1966-09-10 1971-01-07 Kestermann Maschf Rolf Screw extruder
DE2241111A1 (en) * 1972-08-22 1974-02-28 Yvan Godar Feeding multi screw plasticiser with granulates - through hopper with outlet shaped to give increased ratio of actual to maximum theoretical output
US4773654A (en) * 1985-06-08 1988-09-27 Fritsch Rudolf P Shaft seal assembly, in particular for an apparatus for continuous processing of very viscous media
DE19655289B4 (en) * 1996-12-21 2012-02-16 Entex Rust & Mitschke Gmbh Apparatus and method for short path distillation

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280886A (en) * 1965-08-24 1966-10-25 Union Carbide Corp Apparatus for the devolatilization of foamable viscous solutions
DE1629136B1 (en) * 1966-01-22 1970-10-29 Werner & Pfleiderer Screw machine for drying moisture-containing goods, in particular pastes or similar masses
DE1571244C2 (en) * 1966-01-25 1974-03-28 Dynamit Nobel Ag, 5210 Troisdorf Device for the continuous production of solid explosives and propellants from moisture-containing starting mixtures
GB1166719A (en) * 1967-04-26 1969-10-08 Bayer Ag Separation of Chlorosilanes from Silicon Dust by Evaporation
DE1946997A1 (en) * 1969-09-17 1971-05-06 Werner & Pfleiderer Continuous fluid bed dryer
US3809140A (en) * 1969-12-24 1974-05-07 Bayer Ag Concentration of materials
DE3215273A1 (en) * 1982-04-23 1983-10-27 Bayer Ag, 5090 Leverkusen DEVICE FOR DISCHARGING HIGH VISCOSITY MEDIA IN CHEMICAL PROCESS ENGINEERING
WO2005003663A2 (en) * 2003-07-01 2005-01-13 Inetec Limited Organic waste disposal
EP2261587A1 (en) * 2009-06-13 2010-12-15 EFU Engineering für Umwelttechnik GmbH Plant for drying sewage sludge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813154C (en) * 1949-09-29 1951-09-06 Bayer Ag Mixing and kneading device
DE915689C (en) * 1951-12-30 1954-07-26 Bayer Ag Device for separating liquids or gases from tough, plastic or grainy masses
DE945086C (en) * 1953-07-22 1956-06-28 Bayer Ag Process for coating the individual particles of powdery, preferably agglomerated or agglomerating substances

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US192069A (en) * 1877-06-19 Improvement in grain conveyers and driers
AT35106B (en) * 1907-08-20 1908-11-10 Friedrich Wissiak Extrusion press.
US2935763A (en) * 1954-09-01 1960-05-10 Us Rubber Co Method of forming pellets of a synthetic rubber latex and a particulate resin
CH360492A (en) * 1957-11-14 1962-02-28 Lavorazione Mat Plastiche Sas Screw press for the extrusion of plastic materials

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE813154C (en) * 1949-09-29 1951-09-06 Bayer Ag Mixing and kneading device
DE915689C (en) * 1951-12-30 1954-07-26 Bayer Ag Device for separating liquids or gases from tough, plastic or grainy masses
DE945086C (en) * 1953-07-22 1956-06-28 Bayer Ag Process for coating the individual particles of powdery, preferably agglomerated or agglomerating substances

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1529994B1 (en) * 1965-06-26 1970-08-20 Kestermann Maschf Rolf Screw extruder
DE1554751B1 (en) * 1966-09-10 1971-01-07 Kestermann Maschf Rolf Screw extruder
DE2241111A1 (en) * 1972-08-22 1974-02-28 Yvan Godar Feeding multi screw plasticiser with granulates - through hopper with outlet shaped to give increased ratio of actual to maximum theoretical output
US4773654A (en) * 1985-06-08 1988-09-27 Fritsch Rudolf P Shaft seal assembly, in particular for an apparatus for continuous processing of very viscous media
DE19655289B4 (en) * 1996-12-21 2012-02-16 Entex Rust & Mitschke Gmbh Apparatus and method for short path distillation

Also Published As

Publication number Publication date
GB918158A (en) 1963-02-13
NL262464A (en) 1900-01-01
NL136124C (en) 1900-01-01
US3118744A (en) 1964-01-21

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