WO1996032591A3 - Pump for conveying a moist pulp - Google Patents

Pump for conveying a moist pulp Download PDF

Info

Publication number
WO1996032591A3
WO1996032591A3 PCT/RU1996/000090 RU9600090W WO9632591A3 WO 1996032591 A3 WO1996032591 A3 WO 1996032591A3 RU 9600090 W RU9600090 W RU 9600090W WO 9632591 A3 WO9632591 A3 WO 9632591A3
Authority
WO
WIPO (PCT)
Prior art keywords
pulp
pipe connection
worm feeder
worm
moist
Prior art date
Application number
PCT/RU1996/000090
Other languages
French (fr)
Other versions
WO1996032591A2 (en
Inventor
Vladimir Pavlovich Grudinin
Original Assignee
Grudinin Alexandr Vladimirovic
Anisimov Alexandr Pavlovich
Vladimir Pavlovich Grudinin
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 Grudinin Alexandr Vladimirovic, Anisimov Alexandr Pavlovich, Vladimir Pavlovich Grudinin filed Critical Grudinin Alexandr Vladimirovic
Priority to AU57824/96A priority Critical patent/AU5782496A/en
Priority to JP8530936A priority patent/JPH11503508A/en
Priority to EP96914477A priority patent/EP0820563A2/en
Priority to BR9604898A priority patent/BR9604898A/en
Publication of WO1996032591A2 publication Critical patent/WO1996032591A2/en
Publication of WO1996032591A3 publication Critical patent/WO1996032591A3/en
Priority to NO974700A priority patent/NO974700L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/001—Preventing vapour lock
    • F04D9/002—Preventing vapour lock by means in the very pump
    • F04D9/003—Preventing vapour lock by means in the very pump separating and removing the vapour
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)

Abstract

The present invention relates to a device for pumping a moist pulp and may be used in the wood-pulp and paper industry for conveying a highly concentrated pulp. The proposed pump comprises a body (1) having a hopper (2) for receiving a pulp; a replaceable pipe connection (3) in which a worm feeder (5) is coaxially located; a check valve (6) mounted as viewed from a pump outlet from said pipe connection (3); and a mixing chamber (4) for mixing the pulp with a carrying agent; said chamber is coupled with said pipe connection (3) and fitted with a means for supplying the carrying agent. Between the worm feeder (5) end and the check valve (6) an adjustable gap is provided. On the surface of the pipe connection, on the level of the last flight of the worm feeder there are provided longitudinal through splines (8) for evacuating air which have a length of not more than a lead of the last flight of said worm feeder, a width of about 0.2 - 1.0 mm and a total open area of from 0.5 ΔS to ΔS, where ΔS means the difference between an inner sectional area of the pipe connection and a sectional area of the worm feeder rod. The proposed pump enables pumping over a moist pulp of a high concentration (16-90 %) with maximum efficiency at different sectors of production lines of paper making industry with the result that a need for using a system for the pulp dilution with water is ruled out, a total quantity of waste waters and energy expenditures to treat thereof are reduced.
PCT/RU1996/000090 1995-04-12 1996-04-10 Pump for conveying a moist pulp WO1996032591A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU57824/96A AU5782496A (en) 1995-04-12 1996-04-10 Pump for conveying a moist pulp
JP8530936A JPH11503508A (en) 1995-04-12 1996-04-10 Pumps for transporting wet pulp
EP96914477A EP0820563A2 (en) 1995-04-12 1996-04-10 Pump for conveying a moist pulp
BR9604898A BR9604898A (en) 1995-04-12 1996-04-10 Pump to transport wet pulp
NO974700A NO974700L (en) 1995-04-12 1997-10-10 Pump for transport of moist pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU95105344 1995-04-12
RU9595105344A RU2083879C1 (en) 1995-04-12 1995-04-12 Pulp handling pump

Publications (2)

Publication Number Publication Date
WO1996032591A2 WO1996032591A2 (en) 1996-10-17
WO1996032591A3 true WO1996032591A3 (en) 1996-12-12

Family

ID=20166556

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1996/000090 WO1996032591A2 (en) 1995-04-12 1996-04-10 Pump for conveying a moist pulp

Country Status (10)

Country Link
EP (1) EP0820563A2 (en)
JP (1) JPH11503508A (en)
KR (1) KR19980703810A (en)
CN (1) CN1185824A (en)
AU (1) AU5782496A (en)
BR (1) BR9604898A (en)
CA (1) CA2217724A1 (en)
NO (1) NO974700L (en)
RU (1) RU2083879C1 (en)
WO (1) WO1996032591A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2113274C1 (en) * 1996-06-17 1998-06-20 Владимир Павлович Грудинин Device for transfer and treatment of wet pulp
SE2250301A1 (en) * 2022-03-07 2023-06-20 Valmet Oy Method for converting a plug screw feeder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602552A (en) * 1969-09-17 1971-08-31 Mason Edward Morgan Dry flow pumps
GB1248292A (en) * 1969-02-25 1971-09-29 Pumpen Verdichter Veb K Improvements in and relating to centrifugal pumps
US3781132A (en) * 1971-08-16 1973-12-25 Monsanto Co Devolatilizer rotor assembly
US3975058A (en) * 1975-05-12 1976-08-17 Lafayette Engineering & Manufacturing, Inc. Particulate solids pump
GB1593850A (en) * 1977-10-07 1981-07-22 Powerhouse Eng Ltd Screw pump
EP0409456A2 (en) * 1989-07-18 1991-01-23 Kamyr Ab Pump with separate fluidizing vaned shaft adjacent impeller

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1248292A (en) * 1969-02-25 1971-09-29 Pumpen Verdichter Veb K Improvements in and relating to centrifugal pumps
US3602552A (en) * 1969-09-17 1971-08-31 Mason Edward Morgan Dry flow pumps
US3781132A (en) * 1971-08-16 1973-12-25 Monsanto Co Devolatilizer rotor assembly
US3975058A (en) * 1975-05-12 1976-08-17 Lafayette Engineering & Manufacturing, Inc. Particulate solids pump
GB1593850A (en) * 1977-10-07 1981-07-22 Powerhouse Eng Ltd Screw pump
EP0409456A2 (en) * 1989-07-18 1991-01-23 Kamyr Ab Pump with separate fluidizing vaned shaft adjacent impeller

Also Published As

Publication number Publication date
WO1996032591A2 (en) 1996-10-17
NO974700D0 (en) 1997-10-10
AU5782496A (en) 1996-10-30
EP0820563A2 (en) 1998-01-28
JPH11503508A (en) 1999-03-26
CN1185824A (en) 1998-06-24
RU95105344A (en) 1997-02-10
BR9604898A (en) 1998-07-14
RU2083879C1 (en) 1997-07-10
KR19980703810A (en) 1998-12-05
CA2217724A1 (en) 1996-10-17
NO974700L (en) 1997-10-10

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