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WO1992017260A1 - Material treatment apparatus - Google Patents

Material treatment apparatus Download PDF

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Publication number
WO1992017260A1
WO1992017260A1 PCT/GB1992/000558 GB9200558W WO9217260A1 WO 1992017260 A1 WO1992017260 A1 WO 1992017260A1 GB 9200558 W GB9200558 W GB 9200558W WO 9217260 A1 WO9217260 A1 WO 9217260A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
flow path
outlet
gas
housing
Prior art date
Application number
PCT/GB1992/000558
Other languages
French (fr)
Inventor
Jack Baggaley
Original Assignee
Jack Baggaley
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 Jack Baggaley filed Critical Jack Baggaley
Priority to EP92907503A priority Critical patent/EP0595816A1/en
Publication of WO1992017260A1 publication Critical patent/WO1992017260A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B01D17/0211—Separation of non-miscible liquids by sedimentation with baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0217—Separation of non-miscible liquids by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0054—Plates in form of a coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0087—Settling tanks provided with means for ensuring a special flow pattern, e.g. even inflow or outflow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
    • B01D21/265—Separation of sediment aided by centrifugal force or centripetal force by using a vortex inducer or vortex guide, e.g. coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1493—Flotation machines with means for establishing a specified flow pattern
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/24—Pneumatic
    • B03D1/242—Nozzles for injecting gas into the flotation tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/02—Froth-flotation processes
    • B03D1/028—Control and monitoring of flotation processes; computer models therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/14—Flotation machines
    • B03D1/1431—Dissolved air flotation machines

Definitions

  • THIS INVENTION relates to material treatment apparatus.
  • material treatment apparatus comprises a housing having an axis, and means defining a liquid flow path in the housing between an inlet and an outlet characterized in that the flow path at least in part extends angularly as it extends axially.
  • the defining means may define axially spacea regions of the flow path, the flow paths in the regions extending angularly as they extend axially.
  • the defining means may comprise an helical wall.
  • the radially outer edge region of the wall may comprise a channel.
  • the channel may communicate with a separate outlet at its lower end.
  • treatment material e.g. a gas and/or a liquid into the flow Path.
  • treatment material e.g. a gas and/or a liquid into the flow Path.
  • Fig. 1 is a side view of a material treatment apparatus with some parts omitted;
  • Fig. 2 is a plan view of Fig. 1 on an enlarged scale with the omitted parts inserted;
  • Fig. 3 is a perspective view of part of Fig. 1 with part removed for clarity;
  • Fig. 4 is a plan view of Fig. 5;
  • Fig. 5 is a side view of a modification
  • Fig. 6 is a schematic view
  • Fig. 7 illustrates a treatment system
  • a material treatment apparatus 10 comprises a generally cylindrical housing 11 having a central axis and a peripheral wall 12 and closed by end walls 13, 14.
  • An L-shaped tube 9 Upstanding centrally from the bottom wall 13 is a tube 15 closed at its upper end 16.
  • An L-shaped tube 9 has a central vertical leg 17, which is open at its lower end and which extends sealingly through the top wall 14, and a horizontal leg 18 arranged for connection to a source of reduced pressure or vacuum apparatus indicated schematically at 19.
  • An axially extended spiral or helix 20 is located in the housing 11.
  • the spiral has a downwardly and outwardly
  • the wall 21 stops short of the inner surface 24 of the wall 12 and is continued by an L-shaped
  • the spiral 20 stops short of end wall 13 and a plate 34 in housing 11 forms the bottom end of volume 30.
  • the wall 21 and channel 25 thus define with the housing 11 a volume 30 which is closed apart from the inlet to pipe 17.
  • a wall 36 extends between two adjacent turns of the spiral to close the spiral at the top so that between the wall 14 and the spiral 20 is a closed volume 37.
  • a closed volume 33 is between plate 34 and wall 13. Volumes 37, 33 are not in communication with volume 30. In use the volume 30 is normally filled with material being treated.
  • the channel 25 communicates with a closed container 27 having an outlet 28 through the wall 12.
  • Material to be treated can be introduced at the top of the volume 30 through one or more, three shown in Fig. 1, inlet pipes 31 which extend through the top wall 13 (Fig. 2) or side wall 12 (Fig. 1) and sealingly into an upper region of the volume 30 between adjacent turns of the spiral.
  • the material introduced at inlet 31 descends through the volume 30 following initially an axially extended helical path in a region 70 associated with leg 17, then through a region 71 between the tube 15 and the leg 17 in which the flow is less spatially controlled, and then in an axially extended helical path in a region 72 around the tube 15 to the outlet 32.
  • the angular motion of the material produces a radial pressure difference so that pressure is less at a radially inner region than at a radially outer region so that gas in the material tends to migrate towards the inner region, as indicated schematically by bubbles 33 Fig. 7.
  • Air or other gas may be supplied to the volume 30 through inlet nozzles 40 extending from pipe 41 having closable flow control valve 42. There may be one or more nozzles 40 at each of one or more axial locations. The added air or other gas attracts light particles or bubbles of gas or dissolved gas and assists in transporting this to a radially inner region.
  • Farther liquid e.g. a defoaming agent
  • nozzles 43 There may be one or more nozzles 43 at each of one or more axial locations.
  • Samples of the mixture in the volume 30 can be taken through closable sample outlets 45 at one or more axial locations.
  • the apparatus may be used in a variety of ways.
  • the input material may be a mixture of liquid and solid material. As this input liquor descends, solids which are heavier than the liquid will tend to engage the wall 21 and pass therealong into the channel 25 and be carried by the spiral motion of tne mixture to the container 27 for removal and, where appropriate, further treatment e.g.
  • the input mixture is thus clarified and the clarified liquor is removed through the outlet 32 either by gravity or a pump 50.
  • the input liquor is the effluent from another process e.g. paper-making or china clay blending or treatment
  • the clarified liquid may be returned to that process for re-use, possibly after further treatment e.g. passing through a cyclone separator.
  • liquid-solid mixture contains so-called flotables, these may be removed through pipe 9 due to the reduced pressure in the pipe 9.
  • air or other gas is introduced at 40 to attract particles in the mixture and cause them to float and thus rise up the housing 41 and be removed by the suction in pipe 9.
  • this could be applied to an input mixture of water and titanium dioxide.
  • One example of a solid-liquid mixture is water with sand and/or river mud.
  • the input material is a liquid- liquid mixture e.g. water and solvent.
  • air or other gas can be introduced at 41 , and/or a defoaming agent at 43, to cause the solvent to rise and be removed through the pipe 9.
  • the input material is a liquid-gas mixture e.g. liquid and absorbed air.
  • the air may be caused to separate out wholly or in part by the angular movement of the mixture along the spiral or air or other gas can be introduced e.g. in the form of bubbles to remove the air from the mixture and thus through the pipe 9.
  • the rate of flow of input material through the volume 30 can be controlled bv a flow meter and valve 60 which can be at the input or outlet end, and the input material could be pumped in by pump 61.
  • the arrangement is compact by comparison with a long settling tank; for example the diameter of the housing 11 may be between 3.3 metres to 5.7 metres (8ft to 12ft) with an axial length of 5.7 metres.
  • the apparatus has been illustrated in a vertical position, this is not essential and the housing 11 may have other orientations.
  • the gas can simply pass tnrough pipe 9.
  • the arrangement can be constructed for particular uses.
  • Foe example the spiral region above tube 15 can be principally for removal of gas and the spiral region along tube 15 primarily for
  • the wall 21 can be at different angles to the axis in different apparatus or have a varying angle at different axial positions in an apparatus 10.
  • a filter for solids can be incorporated.
  • a filter 49 Fig. 4 formed as a circular tray 51 can be disposed above outlet 32 and have a plurality of sectors 52 which contain for example sand to act as a filter.
  • the tray 51 is rotated step-by-step by motor 53, say one complete revolution in 24 hours, and is a cover 34 for one sector so that the sand in that sector can be
  • the treatment of the input liquor may as above be by both dissolved air flotation and sedimentation.
  • the Treatment may be sedimentation only and in this case the air inlet(s) could be omitted and the tube 13 extend up to the wall 14
  • effluent from source 30 Fig. 7 can receive added air at 31, these components passing through an in-line mixer 32, the output then receiving added polymer at 33 before passing to inlet pipes 31.
  • the clarified liquid is removed at 84 as above and the solid residues (say 10% by volume) can be removed, passed through a centrifugal separator 85, then an air dissolving tube 86 and the output of this fed back to the inlet 31 or to the inlet to the mixer 32,
  • the tube 15 could be moveable up and down

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Physical Water Treatments (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Material treatment apparatus (10) has a housing (11) with inlet (31) for material to be treated. A helical wall (21) defines an angularly and axially extending flow path for material. Gas can escape through pipe (9) and liquid is discharged through outlet (30). Solids pass on wall (21) to channel (25) to a separate container (27) having outlet (28). Treatment gas can be introduced at nozzles (40) and other treatment material e.g. defoaming agent can be introduced at axially spaced nozzles (43). If sedimentation only is required, pipe (9) can be omitted. The apparatus is compact.

Description

MATERIAL TREATMENT APPARATUS
THIS INVENTION relates to material treatment apparatus.
According to this invention material treatment apparatus comprises a housing having an axis, and means defining a liquid flow path in the housing between an inlet and an outlet characterized in that the flow path at least in part extends angularly as it extends axially.
The defining means may define axially spacea regions of the flow path, the flow paths in the regions extending angularly as they extend axially.
The defining means may comprise an helical wall.
The radially outer edge region of the wall may comprise a channel.
The channel may communicate with a separate outlet at its lower end.
There may be means for introducing treatment material e.g. a gas and/or a liquid into the flow Path. The invention may be performed in various ways and one specific embodiment with possible modifications will now be described by way of example with reference to the accompanying drawings, in which
Fig. 1 is a side view of a material treatment apparatus with some parts omitted;
Fig. 2 is a plan view of Fig. 1 on an enlarged scale with the omitted parts inserted;
Fig. 3 is a perspective view of part of Fig. 1 with part removed for clarity;
Fig. 4 is a plan view of Fig. 5;
Fig. 5 is a side view of a modification;
Fig. 6 is a schematic view; and
Fig. 7 illustrates a treatment system.
A material treatment apparatus 10 comprises a generally cylindrical housing 11 having a central axis and a peripheral wall 12 and closed by end walls 13, 14.
Upstanding centrally from the bottom wall 13 is a tube 15 closed at its upper end 16. An L-shaped tube 9 has a central vertical leg 17, which is open at its lower end and which extends sealingly through the top wall 14, and a horizontal leg 18 arranged for connection to a source of reduced pressure or vacuum apparatus indicated schematically at 19.
An axially extended spiral or helix 20 is located in the housing 11. The spiral has a downwardly and outwardly
inclined helical wall 21 which is sealed e.g. by welding, at its inner edge 22 to the outer surface 23 of the tube 15, and to the outer surface 8 of the leg 17. In the axial space 27 between tube 15 and tube leg 17 the inner edge 22a of wall 21 is free.
The wall 21 stops short of the inner surface 24 of the wall 12 and is continued by an L-shaped
channel 25 whose outer edge 26 is sealed, e.g. bywelding, to the surface 24. The edges 22, 22a, 26 each form a helix.
The spiral 20 stops short of end wall 13 and a plate 34 in housing 11 forms the bottom end of volume 30.
The wall 21 and channel 25 thus define with the housing 11 a volume 30 which is closed apart from the inlet to pipe 17.
A wall 36 extends between two adjacent turns of the spiral to close the spiral at the top so that between the wall 14 and the spiral 20 is a closed volume 37.
A closed volume 33 is between plate 34 and wall 13. Volumes 37, 33 are not in communication with volume 30. In use the volume 30 is normally filled with material being treated.
At its lower end the channel 25 communicates with a closed container 27 having an outlet 28 through the wall 12.
Material to be treated can be introduced at the top of the volume 30 through one or more, three shown in Fig. 1, inlet pipes 31 which extend through the top wall 13 (Fig. 2) or side wall 12 (Fig. 1) and sealingly into an upper region of the volume 30 between adjacent turns of the spiral.
At the lower end of the housing 11 is an outlet 32 from the volume 30.
An openable and closable drain outlet
In use the material introduced at inlet 31 descends through the volume 30 following initially an axially extended helical path in a region 70 associated with leg 17, then through a region 71 between the tube 15 and the leg 17 in which the flow is less spatially controlled, and then in an axially extended helical path in a region 72 around the tube 15 to the outlet 32. The angular motion of the material produces a radial pressure difference so that pressure is less at a radially inner region than at a radially outer region so that gas in the material tends to migrate towards the inner region, as indicated schematically by bubbles 33 Fig. 7.
Air or other gas may be supplied to the volume 30 through inlet nozzles 40 extending from pipe 41 having closable flow control valve 42. There may be one or more nozzles 40 at each of one or more axial locations. The added air or other gas attracts light particles or bubbles of gas or dissolved gas and assists in transporting this to a radially inner region.
Farther liquid, e.g. a defoaming agent, can be supplied to the volume 30 through nozzles 43 extending from pipe 44 with closable flow control valve 45. There may be one or more nozzles 43 at each of one or more axial locations.
Samples of the mixture in the volume 30 can be taken through closable sample outlets 45 at one or more axial locations.
The apparatus may be used in a variety of ways. For example the input material may be a mixture of liquid and solid material. As this input liquor descends, solids which are heavier than the liquid will tend to engage the wall 21 and pass therealong into the channel 25 and be carried by the spiral motion of tne mixture to the container 27 for removal and, where appropriate, further treatment e.g.
cleansing, prior to re-use. The input mixture is thus clarified and the clarified liquor is removed through the outlet 32 either by gravity or a pump 50.
In some cases the input liquor is the effluent from another process e.g. paper-making or china clay blending or treatment, and the clarified liquid may be returned to that process for re-use, possibly after further treatment e.g. passing through a cyclone separator.
If the liquid-solid mixture contains so- called flotables, these may be removed through pipe 9 due to the reduced pressure in the pipe 9.
Where appropriate air or other gas is introduced at 40 to attract particles in the mixture and cause them to float and thus rise up the housing 41 and be removed by the suction in pipe 9. For example this could be applied to an input mixture of water and titanium dioxide.
One example of a solid-liquid mixture is water with sand and/or river mud.
In another example, the input material is a liquid- liquid mixture e.g. water and solvent. Again air or other gas can be introduced at 41 , and/or a defoaming agent at 43, to cause the solvent to rise and be removed through the pipe 9.
In some cases the input material is a liquid-gas mixture e.g. liquid and absorbed air. The air may be caused to separate out wholly or in part by the angular movement of the mixture along the spiral or air or other gas can be introduced e.g. in the form of bubbles to remove the air from the mixture and thus through the pipe 9.
The rate of flow of input material through the volume 30 can be controlled bv a flow meter and valve 60 which can be at the input or outlet end, and the input material could be pumped in by pump 61.
The arrangement is compact by comparison with a long settling tank; for example the diameter of the housing 11 may be between 3.3 metres to 5.7 metres (8ft to 12ft) with an axial length of 5.7 metres.
Although the apparatus has been illustrated in a vertical position, this is not essential and the housing 11 may have other orientations.
In some cases it is not necessary to apply suction to pipe 9, the gas can simply pass tnrough pipe 9.
The arrangement can be constructed for particular uses. Foe example the spiral region above tube 15 can be principally for removal of gas and the spiral region along tube 15 primarily for
separation of solids as indicated schematically at 39 Fig. 7 in which the solids are shown as settling and migrating to channel 25. Thus the lengths of tube 15 and pipe 17 and the numbers of associated turns of wall 21 can vary.
The rate of flow of material through the
apparatus is adjusted to particular circumstances and treatment. The wall 21 can be at different angles to the axis in different apparatus or have a varying angle at different axial positions in an apparatus 10. If desired a filter for solids can be incorporated. For example a filter 49 Fig. 4 formed as a circular tray 51 can be disposed above outlet 32 and have a plurality of sectors 52 which contain for example sand to act as a filter. The tray 51 is rotated step-by-step by motor 53, say one complete revolution in 24 hours, and is a cover 34 for one sector so that the sand in that sector can be
cleaned using inlet 55 and outlet 56 for cleansing material.
The treatment of the input liquor, e.g. effluent, may as above be by both dissolved air flotation and sedimentation.
In some cases the Treatment may be sedimentation only and in this case the air inlet(s) could be omitted and the tube 13 extend up to the wall 14
(pipe 9 omitted) or into sealing engagement with leg 17.
Because the axial distance between adjacent turns of channel 23 is relatively small, particles can more readily fall into contact with wall 21.
In some cases additional material to assist in the treatment is added to the liquor before the liquor enters the apparatus 10. Thus effluent from source 30 Fig. 7 can receive added air at 31, these components passing through an in-line mixer 32, the output then receiving added polymer at 33 before passing to inlet pipes 31. The clarified liquid is removed at 84 as above and the solid residues (say 10% by volume) can be removed, passed through a centrifugal separator 85, then an air dissolving tube 86 and the output of this fed back to the inlet 31 or to the inlet to the mixer 32,
The tube 15 could be moveable up and down
in relation to the wall 21 to vary the relative positions and extent of the treatment zones.

Claims

1. Material treatment apparatus comprising a housing (11) having an axis, and means (12, 21, 25) defining a liquid flow path in the housing (11) between an inlet (31) and an outlet (32) characterized in that the flow path at least in part extends angularly as it extends axially.
2. Apparatus as claimed in claim 1, characterized in that the defining means (12, 21, 25) defines spaced regions (70, 72) of the flow path, the flow paths in the regions extending angularly as they extend
axially.
3. Apparatus as claimed in claim 1 or claim 2, characterized in that the defining means comprises a helical wall (21).
4. Apparatus as claimed in claim 3, characterized in that the helical wall (21) is inclined to the axis away from the inlet (31).
5. Apparatus as claimed in claim 3 or claim 4, characterized in that the radially outer edge of the wall (21) comprises a channel (25) communicating with a separate outlet (28).
6. Apparatus as claimed in claim 1 or claim 2, characterized by a separate outlet (9) for gas.
7. Apparatus as claimed in claim 6, characterized by suction means (19) connected to the outlet (9).
8. Apparatus as claimed in claim 1 or claim 2, characterized in that means (40) are provided for introducing treatment material into the flow path.
9. Apparatus as claimed in claim 8, including axially spaced means (40, 44) for introducing treatment material into the flow path.
10. Apparatus as claimed in claim 2, including means (40) and means (44) for respectively introducing treatment material into the flow path in the region (70) and the region (72).
PCT/GB1992/000558 1991-03-27 1992-03-26 Material treatment apparatus WO1992017260A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP92907503A EP0595816A1 (en) 1991-03-27 1992-03-26 Material treatment apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919106574A GB9106574D0 (en) 1991-03-27 1991-03-27 Improvements in or relating to material treatment apparatus
GB9106574.8 1991-03-27

Publications (1)

Publication Number Publication Date
WO1992017260A1 true WO1992017260A1 (en) 1992-10-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/000558 WO1992017260A1 (en) 1991-03-27 1992-03-26 Material treatment apparatus

Country Status (4)

Country Link
EP (1) EP0595816A1 (en)
AU (1) AU1433292A (en)
GB (1) GB9106574D0 (en)
WO (1) WO1992017260A1 (en)

Cited By (19)

* Cited by examiner, † Cited by third party
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WO1995001215A1 (en) * 1993-07-01 1995-01-12 Southern Water Services Ltd. Separating liquid suspensions
WO1996004058A1 (en) * 1994-07-29 1996-02-15 International Fluid Separation Pty. Ltd. Separation apparatus and method
US5653347A (en) * 1992-06-30 1997-08-05 Cyclotech Ab Cyclone separator
WO2000054867A1 (en) * 1999-03-17 2000-09-21 Geo2 Limited Improved separator and process
WO2001021273A1 (en) * 1999-09-22 2001-03-29 Southern Water Services Ltd. Separator for liquid suspension
EP1193342A1 (en) * 2000-09-27 2002-04-03 Meri Entsorgungstechnik für die Papierindustrie GmbH Column flotation device
EP1188540A3 (en) * 2000-09-19 2002-06-05 Fuji Photo Film Co., Ltd. Method for recycling plastic products and process with apparatus for washing crushed plastic
EP1477607A1 (en) * 2003-05-15 2004-11-17 Kadant Lamort Process for de-inking paper pulp and flotation cell used for this process
FR2854907A1 (en) * 2003-05-15 2004-11-19 Kadant Lamort Paper pulp de-inking procedure and flotation cell for same uses guide with passages for rising bubbles that carry ink to top of cell for removal
CN100363080C (en) * 2005-05-20 2008-01-23 清华大学 A device for separating suspended solids in water
WO2009098284A3 (en) * 2008-02-08 2009-10-01 Boehringer Ingelheim Rcv Gmbh & Co Kg Methods and devices for producing biomolecules
CN102580368A (en) * 2012-03-27 2012-07-18 胡开吉 Spiral-flow type primary settling device for running water
WO2013020271A1 (en) * 2011-08-09 2013-02-14 株洲市兴民科技有限公司 Flotation method and device for splitting tailings, and use thereof
EP1608749B1 (en) * 2003-03-24 2015-08-12 Boehringer Ingelheim RCV GmbH & Co KG Methods and devices for producing biomolecules
WO2016004504A1 (en) * 2014-07-11 2016-01-14 Robert Mckenzie Vertical gas/liquid phase separator
US9744489B2 (en) 2014-07-11 2017-08-29 Robert McKenzie Phase separator using pressure differential
EP2353687B1 (en) * 2010-02-03 2017-10-04 Wavin B.V. Inspection chamber with filter
WO2022073139A1 (en) * 2020-10-09 2022-04-14 Sand Separation Technologies Inc. Phase separator with interleaved baffles
CN114734665A (en) * 2022-03-14 2022-07-12 青岛森麒麟轮胎股份有限公司 Double-steam chamber tire mold

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JP2003509198A (en) * 1999-09-22 2003-03-11 サザーン ウォーター サービス リミテッド Suspension separator
AU766549B2 (en) * 1999-09-22 2003-10-16 Mitsubishi Kakoki Kaisha, Ltd. Separator for liquid suspension
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EP1188540A3 (en) * 2000-09-19 2002-06-05 Fuji Photo Film Co., Ltd. Method for recycling plastic products and process with apparatus for washing crushed plastic
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EP1477607A1 (en) * 2003-05-15 2004-11-17 Kadant Lamort Process for de-inking paper pulp and flotation cell used for this process
FR2854907A1 (en) * 2003-05-15 2004-11-19 Kadant Lamort Paper pulp de-inking procedure and flotation cell for same uses guide with passages for rising bubbles that carry ink to top of cell for removal
CN100363080C (en) * 2005-05-20 2008-01-23 清华大学 A device for separating suspended solids in water
WO2009098284A3 (en) * 2008-02-08 2009-10-01 Boehringer Ingelheim Rcv Gmbh & Co Kg Methods and devices for producing biomolecules
JP2011512127A (en) * 2008-02-08 2011-04-21 ベーリンガー インゲルハイム エルツェーファウ ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト Biomolecule generation method and apparatus
CN101998991B (en) * 2008-02-08 2013-11-06 贝林格尔.英格海姆Rcv两合公司 Methods and devices for producing biomolecules
AU2009211297B2 (en) * 2008-02-08 2014-05-22 Boehringer Ingelheim Rcv Gmbh & Co Kg Methods and devices for producing biomolecules
KR101728901B1 (en) * 2008-02-08 2017-04-20 베링거 인겔하임 에르체파우 게엠베하 운트 코 카게 Methods and devices for producing biomolecules
EP2353687B1 (en) * 2010-02-03 2017-10-04 Wavin B.V. Inspection chamber with filter
WO2013020271A1 (en) * 2011-08-09 2013-02-14 株洲市兴民科技有限公司 Flotation method and device for splitting tailings, and use thereof
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US9744489B2 (en) 2014-07-11 2017-08-29 Robert McKenzie Phase separator using pressure differential
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CN114734665A (en) * 2022-03-14 2022-07-12 青岛森麒麟轮胎股份有限公司 Double-steam chamber tire mold

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GB9106574D0 (en) 1991-05-15
AU1433292A (en) 1992-11-02

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