FR2387753A1 - GEAR PUMP FOR VISCOUS LIQUIDS - Google Patents

GEAR PUMP FOR VISCOUS LIQUIDS

Info

Publication number
FR2387753A1
FR2387753A1 FR7712029A FR7712029A FR2387753A1 FR 2387753 A1 FR2387753 A1 FR 2387753A1 FR 7712029 A FR7712029 A FR 7712029A FR 7712029 A FR7712029 A FR 7712029A FR 2387753 A1 FR2387753 A1 FR 2387753A1
Authority
FR
France
Prior art keywords
gear pump
viscous liquids
molten polymer
polymer
degassing
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
FR7712029A
Other languages
French (fr)
Other versions
FR2387753B1 (en
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 AU24151/77A priority Critical patent/AU517825B2/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to NLAANVRAGE7704362,A priority patent/NL187082C/en
Priority to FR7712029A priority patent/FR2387753A1/en
Priority claimed from NLAANVRAGE7704362,A external-priority patent/NL187082C/en
Priority to FR7730594A priority patent/FR2406101A1/en
Publication of FR2387753A1 publication Critical patent/FR2387753A1/en
Application granted granted Critical
Publication of FR2387753B1 publication Critical patent/FR2387753B1/fr
Priority to NL9002294A priority patent/NL9002294A/en
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0068—General arrangements, e.g. flowsheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/60—Pump mixers, i.e. mixing within a pump
    • B01F25/62—Pump mixers, i.e. mixing within a pump of the gear type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/60—Component parts, details or accessories; Auxiliary operations for feeding, e.g. end guides for the incoming material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7404—Mixing devices specially adapted for foamable substances
    • B29B7/7409—Mixing devices specially adapted for foamable substances with supply of gas
    • B29B7/7414—Mixing devices specially adapted for foamable substances with supply of gas with rotatable stirrer, e.g. using an intermeshing rotor-stator system
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
    • B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
    • 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
    • B29C48/465—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using rollers
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids
    • F04C13/002—Pumps for particular liquids for homogeneous viscous liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Abstract

L'invention concerne un procédé de pompage d'un polymère fondu. Ce procédé consiste, après dégazage du monomère dans une colonne appropriée, à faire passer le polymère fondu dans une pompe à engrenages dont l'orifice de refoulement à une section comprise entre 0,2 et 2,0 fois le produit de la largeur d'un pignon par la hauteur d'une dent et travaillant sous une charge de pression. Ce procédé permet d'extruder un polymère comme le polyéthylène en utilisant moins d'énergie.The invention relates to a method of pumping a molten polymer. This process consists, after degassing the monomer in a suitable column, in passing the molten polymer through a gear pump, the discharge orifice of which has a section of between 0.2 and 2.0 times the product of the width of a pinion by the height of a tooth and working under a pressure load. This process allows a polymer like polyethylene to be extruded using less energy.

FR7712029A 1977-04-12 1977-04-21 GEAR PUMP FOR VISCOUS LIQUIDS Granted FR2387753A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU24151/77A AU517825B2 (en) 1977-04-12 1977-04-12 Gear pump
NLAANVRAGE7704362,A NL187082C (en) 1977-04-12 1977-04-21 GEAR PUMP FOR STRONG VISCUS MEDIA.
FR7712029A FR2387753A1 (en) 1977-04-12 1977-04-21 GEAR PUMP FOR VISCOUS LIQUIDS
FR7730594A FR2406101A1 (en) 1977-04-12 1977-10-11 Polymer gear pump - with gear chamber and sealed zone shaped for optimum efficiency
NL9002294A NL9002294A (en) 1977-04-12 1990-10-22 METHOD FOR PREPARING POLYMERS USING A GEAR PUMP FOR PUMPING HIGHLY VISCOUS MEDIA

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
AU24151/77A AU517825B2 (en) 1977-04-12 1977-04-12 Gear pump
NLAANVRAGE7704362,A NL187082C (en) 1977-04-12 1977-04-21 GEAR PUMP FOR STRONG VISCUS MEDIA.
FR7712029A FR2387753A1 (en) 1977-04-12 1977-04-21 GEAR PUMP FOR VISCOUS LIQUIDS
FR7730594A FR2406101A1 (en) 1977-04-12 1977-10-11 Polymer gear pump - with gear chamber and sealed zone shaped for optimum efficiency
NL9002294A NL9002294A (en) 1977-04-12 1990-10-22 METHOD FOR PREPARING POLYMERS USING A GEAR PUMP FOR PUMPING HIGHLY VISCOUS MEDIA

Publications (2)

Publication Number Publication Date
FR2387753A1 true FR2387753A1 (en) 1978-11-17
FR2387753B1 FR2387753B1 (en) 1980-12-05

Family

ID=27506691

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7712029A Granted FR2387753A1 (en) 1977-04-12 1977-04-21 GEAR PUMP FOR VISCOUS LIQUIDS
FR7730594A Granted FR2406101A1 (en) 1977-04-12 1977-10-11 Polymer gear pump - with gear chamber and sealed zone shaped for optimum efficiency

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7730594A Granted FR2406101A1 (en) 1977-04-12 1977-10-11 Polymer gear pump - with gear chamber and sealed zone shaped for optimum efficiency

Country Status (3)

Country Link
AU (1) AU517825B2 (en)
FR (2) FR2387753A1 (en)
NL (1) NL9002294A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0723977A1 (en) * 1995-01-26 1996-07-31 Rexene Corporation Method for product recovery of polyolefins
AT403135B (en) * 1994-12-21 1997-11-25 Sterner Franz Metering and conveying device for polymer components, in particular for injection-moulding machines
US5807976A (en) * 1993-08-05 1998-09-15 Mchaney; Stephen Method for product recovery of polyolefins
US5948447A (en) * 1993-08-05 1999-09-07 Huntsman Polymers Corporation Apparatus for product recovery of polyolefings

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR838481A (en) * 1937-08-20 1939-03-07 Drysdale & Co Ltd Gear pump improvements
GB822722A (en) * 1955-04-02 1959-10-28 Bayer Ag Apparatus for melting synthetic organic linear high polymers for use in the production of filaments and films by extrusion of the melt
FR1199568A (en) * 1957-03-08 1959-12-15 Bayer Ag Process for post-polymerization and spinning of polyamide melts
GB880906A (en) * 1957-01-09 1961-10-25 Dow Chemical Co Improved method for devolatilizing polymeric compositions
US3036334A (en) * 1958-03-26 1962-05-29 Du Pont Melt spinning monitoring means
US3149056A (en) * 1961-03-22 1964-09-15 Dow Chemical Co Devolatilizing apparatus
US3177127A (en) * 1962-03-29 1965-04-06 Dow Chemical Co Gear pump devolatilizing method and apparatus
US3227794A (en) * 1962-11-23 1966-01-04 Du Pont Process and apparatus for flash spinning of fibrillated plexifilamentary material
US3271817A (en) * 1963-05-27 1966-09-13 Maurice S Kanbar Nylon melt-spinning apparatus
FR1500359A (en) * 1965-09-23 1967-11-03 Monsanto Co Method and apparatus for the melt spinning of polymers
DE1254283B (en) * 1958-02-21 1967-11-16 Alpine Ag Maschinenfabrik Melt-spinning device for the production of endless thread bundles
CH461440A (en) * 1965-09-15 1968-08-31 Commissariat Energie Atomique Apparatus for continuously mixing a material in divided form in a pressurized liquid
US3474773A (en) * 1968-05-16 1969-10-28 Monsanto Co Polymer melt screw pump for fiber spinning
US3493553A (en) * 1966-01-28 1970-02-03 Phillips Petroleum Co Process for recovering normally solid thermoplastic polymers from solution
GB1205160A (en) * 1967-09-13 1970-09-16 Du Pont Process and apparatus for monitoring the viscosity of the melt in the melt spinning of synthetic fibres
US3619433A (en) * 1967-05-26 1971-11-09 Du Pont Method for determining filament denier of filaments spun from a spinning pack
US3751533A (en) * 1971-09-15 1973-08-07 Monsanto Co Method and apparatus for monitoring melt spinning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB492001A (en) * 1937-08-20 1938-09-13 Drysdale & Co Ltd Improvements in or relating to gear wheel pumps
NL56648C (en) * 1940-01-16 1900-01-01
CH364357A (en) * 1959-06-29 1962-09-15 Demeter Jozsef Device for the continuous production of foils from thermosetting synthetic resins

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR838481A (en) * 1937-08-20 1939-03-07 Drysdale & Co Ltd Gear pump improvements
GB822722A (en) * 1955-04-02 1959-10-28 Bayer Ag Apparatus for melting synthetic organic linear high polymers for use in the production of filaments and films by extrusion of the melt
GB880906A (en) * 1957-01-09 1961-10-25 Dow Chemical Co Improved method for devolatilizing polymeric compositions
FR1199568A (en) * 1957-03-08 1959-12-15 Bayer Ag Process for post-polymerization and spinning of polyamide melts
DE1254283B (en) * 1958-02-21 1967-11-16 Alpine Ag Maschinenfabrik Melt-spinning device for the production of endless thread bundles
US3036334A (en) * 1958-03-26 1962-05-29 Du Pont Melt spinning monitoring means
US3149056A (en) * 1961-03-22 1964-09-15 Dow Chemical Co Devolatilizing apparatus
US3177127A (en) * 1962-03-29 1965-04-06 Dow Chemical Co Gear pump devolatilizing method and apparatus
US3227794A (en) * 1962-11-23 1966-01-04 Du Pont Process and apparatus for flash spinning of fibrillated plexifilamentary material
US3271817A (en) * 1963-05-27 1966-09-13 Maurice S Kanbar Nylon melt-spinning apparatus
CH461440A (en) * 1965-09-15 1968-08-31 Commissariat Energie Atomique Apparatus for continuously mixing a material in divided form in a pressurized liquid
FR1500359A (en) * 1965-09-23 1967-11-03 Monsanto Co Method and apparatus for the melt spinning of polymers
US3493553A (en) * 1966-01-28 1970-02-03 Phillips Petroleum Co Process for recovering normally solid thermoplastic polymers from solution
US3619433A (en) * 1967-05-26 1971-11-09 Du Pont Method for determining filament denier of filaments spun from a spinning pack
GB1205160A (en) * 1967-09-13 1970-09-16 Du Pont Process and apparatus for monitoring the viscosity of the melt in the melt spinning of synthetic fibres
US3474773A (en) * 1968-05-16 1969-10-28 Monsanto Co Polymer melt screw pump for fiber spinning
US3751533A (en) * 1971-09-15 1973-08-07 Monsanto Co Method and apparatus for monitoring melt spinning

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5807976A (en) * 1993-08-05 1998-09-15 Mchaney; Stephen Method for product recovery of polyolefins
US5948447A (en) * 1993-08-05 1999-09-07 Huntsman Polymers Corporation Apparatus for product recovery of polyolefings
AT403135B (en) * 1994-12-21 1997-11-25 Sterner Franz Metering and conveying device for polymer components, in particular for injection-moulding machines
EP0723977A1 (en) * 1995-01-26 1996-07-31 Rexene Corporation Method for product recovery of polyolefins

Also Published As

Publication number Publication date
AU517825B2 (en) 1981-08-27
FR2406101A1 (en) 1979-05-11
AU2415177A (en) 1978-10-19
FR2406101B1 (en) 1981-10-16
FR2387753B1 (en) 1980-12-05
NL9002294A (en) 1991-05-01

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Legal Events

Date Code Title Description
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AR Application made for restoration
BR Restoration of rights
ST Notification of lapse