IE33671L - Pumping viscous liquid from vacuum equipment - Google Patents

Pumping viscous liquid from vacuum equipment

Info

Publication number
IE33671L
IE33671L IE691662A IE166269A IE33671L IE 33671 L IE33671 L IE 33671L IE 691662 A IE691662 A IE 691662A IE 166269 A IE166269 A IE 166269A IE 33671 L IE33671 L IE 33671L
Authority
IE
Ireland
Prior art keywords
vessel
liquid
screw
driving screw
screws
Prior art date
Application number
IE691662A
Other versions
IE33671B1 (en
Original Assignee
Snia Viscosa
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 Snia Viscosa filed Critical Snia Viscosa
Publication of IE33671L publication Critical patent/IE33671L/en
Publication of IE33671B1 publication Critical patent/IE33671B1/en

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
    • 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
    • F04C2/165—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 having more than two rotary pistons with parallel axes
    • 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
    • B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
    • B29B7/22—Component parts, details or accessories; Auxiliary operations
    • B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
    • 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
    • F04C2/12—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

Abstract

1,261,976. Meshing screw pump. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA. Dec.10, 1969 [Dec.12, 1968], No. 60237 /69. Heading F1F. A screw pump for removing a viscous liquid from a vessel 10 under vacuum, comprises a driving screw 22 meshing with a pair of driven screws 23 mounted in a casing 21 which is fitted within a cylindrical member 20 inserted in a neck 15 in the base of the vessel 10, the driving screw 22 terminating at the base of the vessel 10, whilst the driven screws 23 have end portions 23<SP>1</SP> which extend into the liquid 12 being pumped. The cylindrical member 20 extends into the vessel 10 and has a series of circumferential openings 30 adjacent the end portions 23<SP>1</SP> of screws 23 which bear axially against a screw cap 31 fitted to the end of member 20, the cap being provided with openings (32) Figs. 2, 3 (not shown) for the escape of gas bubbles. The vessel 10 and the neck 15 are surrounded by a jacket 14 through which a heating liquid, e. g. diphenyl, is circulated. The pump outlet chamber 40 and duct 42 are also surrounded by a heating jacket 51, 52. The driving screw 22 is connected to a drive shaft 25 supported in a housing 45, 48 by means of a stuffing box 49 comprising a number of annular packing glands of e.g. asbestos fibres. A liquid buffer which does not react or mix with the pumped liquid, is supplied under pressure to the stuffing box 49. [GB1261976A]
IE1662/69A 1968-12-12 1969-12-11 Improvements in or relating to devices for the removal of viscous liquids from vacuum operating equipment IE33671B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2497268 1968-12-12

Publications (2)

Publication Number Publication Date
IE33671L true IE33671L (en) 1970-06-12
IE33671B1 IE33671B1 (en) 1974-09-18

Family

ID=11215299

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1662/69A IE33671B1 (en) 1968-12-12 1969-12-11 Improvements in or relating to devices for the removal of viscous liquids from vacuum operating equipment

Country Status (7)

Country Link
US (1) US3582244A (en)
BE (1) BE742898A (en)
DE (1) DE1962464A1 (en)
FR (1) FR2025983A1 (en)
GB (1) GB1261976A (en)
IE (1) IE33671B1 (en)
NL (1) NL160174C (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944657A (en) * 1989-03-01 1990-07-31 Mowli John C Two-stage pumping apparatus with low shear first stage
US5267837A (en) * 1992-09-23 1993-12-07 Mowli John C Two-stage pumping apparatus with non-meshing first stage augers
TW561165B (en) * 2000-12-07 2003-11-11 Eastman Chem Co Low cost polyester process using a pipe reactor
US6906164B2 (en) 2000-12-07 2005-06-14 Eastman Chemical Company Polyester process using a pipe reactor
US6599112B2 (en) * 2001-10-19 2003-07-29 Imperial Research Llc Offset thread screw rotor device
US7074879B2 (en) * 2003-06-06 2006-07-11 Eastman Chemical Company Polyester process using a pipe reactor
US7135541B2 (en) 2003-06-06 2006-11-14 Eastman Chemical Company Polyester process using a pipe reactor
US7332548B2 (en) * 2004-03-04 2008-02-19 Eastman Chemical Company Process for production of a polyester product from alkylene oxide and carboxylic acid
US7884231B2 (en) * 2005-05-19 2011-02-08 Eastman Chemical Company Process to produce an enriched composition
US20060264662A1 (en) * 2005-05-19 2006-11-23 Gibson Philip E Esterification of an enriched composition
US7432395B2 (en) * 2005-05-19 2008-10-07 Eastman Chemical Company Enriched carboxylic acid composition
US7919652B2 (en) * 2005-05-19 2011-04-05 Eastman Chemical Company Process to produce an enriched composition through the use of a catalyst removal zone and an enrichment zone
US7834208B2 (en) 2005-05-19 2010-11-16 Eastman Chemical Company Process to produce a post catalyst removal composition
US20060264664A1 (en) * 2005-05-19 2006-11-23 Parker Kenny R Esterification of an exchange solvent enriched composition
US20060264656A1 (en) * 2005-05-19 2006-11-23 Fujitsu Limited Enrichment process using compounds useful in a polyester process
US7880031B2 (en) * 2005-05-19 2011-02-01 Eastman Chemical Company Process to produce an enrichment feed
US7897809B2 (en) * 2005-05-19 2011-03-01 Eastman Chemical Company Process to produce an enrichment feed
US7557243B2 (en) * 2005-05-19 2009-07-07 Eastman Chemical Company Enriched terephthalic acid composition
US7304178B2 (en) * 2005-05-19 2007-12-04 Eastman Chemical Company Enriched isophthalic acid composition
US7741516B2 (en) * 2005-05-19 2010-06-22 Eastman Chemical Company Process to enrich a carboxylic acid composition
US7888529B2 (en) * 2006-03-01 2011-02-15 Eastman Chemical Company Process to produce a post catalyst removal composition
US7649109B2 (en) * 2006-12-07 2010-01-19 Eastman Chemical Company Polyester production system employing recirculation of hot alcohol to esterification zone
US7943094B2 (en) * 2006-12-07 2011-05-17 Grupo Petrotemex, S.A. De C.V. Polyester production system employing horizontally elongated esterification vessel
US20080139780A1 (en) * 2006-12-07 2008-06-12 Debruin Bruce Roger Polyester production system employing short residence time esterification
US7863477B2 (en) * 2007-03-08 2011-01-04 Eastman Chemical Company Polyester production system employing hot paste to esterification zone
US7868130B2 (en) * 2007-07-12 2011-01-11 Eastman Chemical Company Multi-level tubular reactor with vertically spaced segments
US7872089B2 (en) 2007-07-12 2011-01-18 Eastman Chemical Company Multi-level tubular reactor with internal tray
US7858730B2 (en) * 2007-07-12 2010-12-28 Eastman Chemical Company Multi-level tubular reactor with dual headers
US7842777B2 (en) * 2007-07-12 2010-11-30 Eastman Chemical Company Sloped tubular reactor with divided flow
US7829653B2 (en) * 2007-07-12 2010-11-09 Eastman Chemical Company Horizontal trayed reactor
US7847053B2 (en) * 2007-07-12 2010-12-07 Eastman Chemical Company Multi-level tubular reactor with oppositely extending segments
US7868129B2 (en) * 2007-07-12 2011-01-11 Eastman Chemical Company Sloped tubular reactor with spaced sequential trays
US7872090B2 (en) * 2007-07-12 2011-01-18 Eastman Chemical Company Reactor system with optimized heating and phase separation
US9573120B2 (en) 2014-05-08 2017-02-21 Eastman Chemical Company Furan-2,5-dicarboxylic acid purge process
US9944615B2 (en) 2014-05-08 2018-04-17 Eastman Chemical Company Purifying crude furan 2,5-dicarboxylic acid by hydrogenation and a purge zone
US10010812B2 (en) 2014-05-08 2018-07-03 Eastman Chemical Company Furan-2,5-dicarboxylic acid purge process
US10421736B2 (en) 2017-07-20 2019-09-24 Eastman Chemical Company Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plant
US10344011B1 (en) 2018-05-04 2019-07-09 Eastman Chemical Company Furan-2,5-dicarboxylic acid purge process
US10526301B1 (en) 2018-10-18 2020-01-07 Eastman Chemical Company Production of purified dialkyl-furan-2,5-dicarboxylate (DAFD) in a retrofitted DMT plant
DE102019210873A1 (en) * 2019-07-23 2021-01-28 Audi Ag Screw pump for conveying a fluid and a corresponding screw pump arrangement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2231357A (en) * 1938-02-04 1941-02-11 Leistritz Maschfabrik Paul Kneading pump
US2384254A (en) * 1942-04-20 1945-09-04 Self Priming Pump & Eng Co Ltd Motor-driven centrifugal pump for liquid
US2588888A (en) * 1949-02-08 1952-03-11 Laval Steam Turbine Co Pump
US2693762A (en) * 1951-10-25 1954-11-09 Laval Steam Turbine Co Nonpositive screw pump and motor
US3198582A (en) * 1962-09-12 1965-08-03 Warren Pumps Inc Screw pump

Also Published As

Publication number Publication date
GB1261976A (en) 1972-02-02
DE1962464A1 (en) 1970-07-02
US3582244A (en) 1971-06-01
BE742898A (en) 1970-05-14
FR2025983A1 (en) 1970-09-11
IE33671B1 (en) 1974-09-18
NL6901689A (en) 1970-06-16
NL160174B (en) 1979-05-15
NL160174C (en) 1979-10-15

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