NL273214A - - Google Patents
Info
- Publication number
- NL273214A NL273214A NL273214DA NL273214A NL 273214 A NL273214 A NL 273214A NL 273214D A NL273214D A NL 273214DA NL 273214 A NL273214 A NL 273214A
- Authority
- NL
- Netherlands
- Prior art keywords
- liquid
- pipe
- chamber
- gas
- pulp
- Prior art date
Links
Classifications
-
- 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
- B03D1/247—Mixing gas and slurry in a device separate from the flotation tank, i.e. reactor-separator type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
- B01F23/45—Mixing liquids with liquids; Emulsifying using flow mixing
- B01F23/454—Mixing liquids with liquids; Emulsifying using flow mixing by injecting a mixture of liquid and gas
-
- 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
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/21—Jet mixers, i.e. mixers using high-speed fluid streams with submerged injectors, e.g. nozzles, for injecting high-pressure jets into a large volume or into mixing chambers
-
- 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
- B03D1/1418—Flotation machines using centrifugal forces
-
- 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
- B03D1/1443—Feed or discharge mechanisms for flotation tanks
- B03D1/1475—Flotation tanks having means for discharging the pulp, e.g. as a bleed stream
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
965,706. Separating solids by froth flotation; agitating slurries ; aerating liquids. HEYL & PATTERSON Inc. Nov. 13, 1961, No. 40583/61. Headings B1C and B2H. In a froth flotation process or apparatus for carrying out such a process liquid 7 is impelled through a pipe 2 into slurry 5 below the surface 6 thereof and released to spread out into the slurry 5 and a gas is delivered through the vortex, unmixed with the liquid 7, where such liquid 7 is released into the slurry and the gas is broken up into fine bubbles 10 which rise through the slurry 5 and pick up particles to form froth. In the arrangement shown in Fig. 4, pulp 5<SP>1</SP> is contained within a receptacle 4<SP>1</SP> provided with a conical bottom 4<SP>11</SP>. Liquid is introduced tangentially into a chamber 11<SP>1</SP> through an inlet 12<SP>1</SP> and gas under pressure is introduced into the chamber 11<SP>1</SP> through a pipe 13<SP>1</SP>. The gas and liquid then pass from the chamber 11<SP>1</SP> down a pipe 3<SP>1</SP> into the pulp 5<SP>1</SP> to form fine bubbles 10<SP>1</SP> which attach themselves to particles in the pulp 5<SP>1</SP> to form a froth 14 which overflows into a trough 16. Part of the pulp 5<SP>1</SP> may be recirculated through a pipe 17, pump 18, pipe 19, inlet 12<SP>1</SP> and chamber 11<SP>1</SP>. Liquid or pulp 5<SP>1</SP> may be supplied to the receptacle 4<SP>1</SP> at 20 and tailings may be discharged through a pipe 21. Gas may be introduced into the chamber 11<SP>1</SP> with the liquid through the tangential inlet 12<SP>1</SP> and separated from the liquid within the chamber 11<SP>1</SP> due to a swirling or centrifugal action. In a further embodiment, Fig. 5 (not shown), gas is introduced through a pipe projecting upwardly into a vortex cavity formed by the liquid 7 issuing from the bottom of the pipe 2 shown in Fig. 1.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB40583/61A GB965706A (en) | 1961-11-13 | 1961-11-13 | Froth flotation process and apparatus |
NL273214 | 1962-01-05 | ||
DEH44569A DE1186811B (en) | 1961-11-13 | 1962-01-09 | Method and device for ventilating a flotation vessel |
Publications (1)
Publication Number | Publication Date |
---|---|
NL273214A true NL273214A (en) |
Family
ID=27210795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL273214D NL273214A (en) | 1961-11-13 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1186811B (en) |
GB (1) | GB965706A (en) |
NL (1) | NL273214A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1144463A (en) * | 1965-09-28 | 1969-03-05 | Licencia Talalmanyokat | Flotation equipment |
US3446353A (en) * | 1966-04-25 | 1969-05-27 | Zinc Corp Ltd The | Method and apparatus for froth flotation |
US3531406A (en) * | 1968-08-23 | 1970-09-29 | Ontario Research Foundation | Method and apparatus for the fail-safe introduction of a bactericidal gas into liquid sewage |
GB2041788B (en) * | 1978-08-21 | 1982-10-06 | Feldmuehle Ag | Method and device for cleaning suspension fibres |
DE3242058A1 (en) * | 1982-11-13 | 1984-05-17 | Klöckner-Humboldt-Deutz AG, 5000 Köln | METHOD AND DEVICE FOR PROCESSING FINE CARBON |
DE3243223C1 (en) * | 1982-11-23 | 1984-05-24 | J.M. Voith Gmbh, 7920 Heidenheim | Process and device for flotation of fiber suspensions |
US6290855B1 (en) * | 1998-08-27 | 2001-09-18 | Donald J. Savegnago | Device for aerating a body of water, method for aerating a body of water |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE345243C (en) * | 1914-07-30 | 1921-12-08 | Minerals Separation Ltd | Foam floating method and device for processing ores |
-
0
- NL NL273214D patent/NL273214A/xx unknown
-
1961
- 1961-11-13 GB GB40583/61A patent/GB965706A/en not_active Expired
-
1962
- 1962-01-09 DE DEH44569A patent/DE1186811B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
GB965706A (en) | 1964-08-06 |
DE1186811B (en) | 1965-02-11 |
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