FR2255107A1 - - Google Patents

Info

Publication number
FR2255107A1
FR2255107A1 FR7442185A FR7442185A FR2255107A1 FR 2255107 A1 FR2255107 A1 FR 2255107A1 FR 7442185 A FR7442185 A FR 7442185A FR 7442185 A FR7442185 A FR 7442185A FR 2255107 A1 FR2255107 A1 FR 2255107A1
Authority
FR
France
Prior art keywords
liquid
suspension
chamber
dispersion
air
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
FR7442185A
Other languages
French (fr)
Other versions
FR2255107B1 (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.)
Pielkenrood Vinitex BV
Original Assignee
Pielkenrood Vinitex BV
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 Pielkenrood Vinitex BV filed Critical Pielkenrood Vinitex BV
Publication of FR2255107A1 publication Critical patent/FR2255107A1/fr
Application granted granted Critical
Publication of FR2255107B1 publication Critical patent/FR2255107B1/fr
Expired legal-status Critical Current

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
    • B03D1/1431—Dissolved air flotation machines
    • 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
    • B03D1/1412—Flotation machines with baffles, e.g. at the wall for redirecting settling solids
    • 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
    • B03D1/1456—Feed mechanisms for the slurry
    • 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
    • B03D1/1481—Flotation machines with a plurality of parallel plates
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation

Abstract

1490227 Flotation apparatus; dispersing gases in liquids PIELKENROOD-VINITEX BV 6 Dec 1974 [22 Dec 1973] 52771/74 Headings B1C B1D and B2H A method of separating suspended material from a suspension comprises reducing the pressure of a pressurized liquid containing gas or a volatile substance to form a dispersion of gas bubbles in the liquid, and introducing the liquid into a tank containing the suspension and forming part of a plate-type separator 7 so that the bubbles become attached to the suspended material and cause it to float. In the embodiment shown the suspension is introduced to a chamber 3 through a duct 11 and a nozzle 12, the latter consisting of a tube having a longitudinal slot. A pump 16 draws in air through a pipe 18 and liquid through a pipe 17 and produces a pressure in a pipe 14. This pressure is suddenly relieved beyond a valve 15 to produce a dispersion of air bubbles in the liquid which is injected into the chamber 3 through a nozzle 13. Floating material passes over a weir 5 into a discharge chamber 6 and sediment is collected in a hopper 10 after passing through an assembly 7 of superposed parallel corrugated plates. In another embodiment, Fig. 3 (not shown) there are separate pumps (16) and (21) for the liquid and air which may be stored under pressure in a mixing vessel (22) before passing through the valve 15. The suspension to be treated and the dispersion of gas bubbles in the liquid may be introduced into the chamber 3 through the same nozzle, and in another modification the suspension itself is pressurized and mixed with air to form the dispersion of gas bubbles. The suspension may be subjected to a coalescence treatment in a device located either inside or outside the chamber 3.
FR7442185A 1973-12-22 1974-12-20 Expired FR2255107B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7317649A NL7317649A (en) 1973-12-22 1973-12-22 METHOD AND DEVICE FOR THE SEPARATION OF COMPONENTS SUSPENDED IN A LIQUID.

Publications (2)

Publication Number Publication Date
FR2255107A1 true FR2255107A1 (en) 1975-07-18
FR2255107B1 FR2255107B1 (en) 1982-05-21

Family

ID=19820259

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7442185A Expired FR2255107B1 (en) 1973-12-22 1974-12-20

Country Status (16)

Country Link
JP (1) JPS5095864A (en)
AT (1) AT336519B (en)
BE (1) BE823666A (en)
CA (1) CA1036718A (en)
CH (1) CH588881A5 (en)
DE (1) DE2460623A1 (en)
DK (1) DK145795C (en)
FI (1) FI369874A (en)
FR (1) FR2255107B1 (en)
GB (1) GB1490227A (en)
IT (1) IT1030892B (en)
MY (1) MY8000134A (en)
NL (2) NL7317649A (en)
NO (1) NO146079C (en)
SE (1) SE412997B (en)
ZA (1) ZA747668B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380990A1 (en) * 1977-02-16 1978-09-15 Pielkenrood Vinitex Bv RESIDUAL WATER TREATMENT PROCESS AND DEVICE
FR2429618A1 (en) * 1978-06-30 1980-01-25 Pielkenrood Vinitex Bv FLOATING METHOD AND DEVICE
FR2501073A1 (en) * 1980-12-30 1982-09-10 Pielkenrood Vinitex Bv DEVICE FOR FLOATING GAS BUBBLES OF MATERIALS SUSPENDED IN A LIQUID

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3002417C2 (en) 1979-03-26 1984-12-20 Novex Találmányfejlesztö és Ertékesítö Külkereskedelmi Rt., Budapest Lamella separator for liquids
DE3021822C2 (en) * 1980-06-11 1985-04-25 J.M. Voith Gmbh, 7920 Heidenheim Flotation cell
NL8100927A (en) * 1981-02-25 1982-09-16 Pielkenrood Vinitex Bv METHOD AND APPARATUS FOR PURIFYING A LIQUID
CN107413080A (en) * 2017-06-23 2017-12-01 郑州西利康新材料有限公司 A kind of carborundum generation settler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4854762A (en) * 1971-11-08 1973-08-01
JPS5237232B2 (en) * 1972-03-02 1977-09-21

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380990A1 (en) * 1977-02-16 1978-09-15 Pielkenrood Vinitex Bv RESIDUAL WATER TREATMENT PROCESS AND DEVICE
FR2429618A1 (en) * 1978-06-30 1980-01-25 Pielkenrood Vinitex Bv FLOATING METHOD AND DEVICE
FR2501073A1 (en) * 1980-12-30 1982-09-10 Pielkenrood Vinitex Bv DEVICE FOR FLOATING GAS BUBBLES OF MATERIALS SUSPENDED IN A LIQUID

Also Published As

Publication number Publication date
MY8000134A (en) 1980-12-31
SE412997B (en) 1980-03-31
DK674074A (en) 1975-09-01
JPS5095864A (en) 1975-07-30
IT1030892B (en) 1979-04-10
NO744596L (en) 1975-07-21
SE7415671L (en) 1975-06-23
FR2255107B1 (en) 1982-05-21
ATA1000774A (en) 1976-08-15
NL175032B (en) 1984-04-16
NO146079C (en) 1982-07-28
FI369874A (en) 1975-06-23
NL175032C (en) 1984-09-17
NO146079B (en) 1982-04-19
ZA747668B (en) 1976-07-28
CH588881A5 (en) 1977-06-15
DK145795C (en) 1983-08-22
AU7646674A (en) 1976-06-17
DE2460623A1 (en) 1975-07-03
DK145795B (en) 1983-03-07
CA1036718A (en) 1978-08-15
BE823666A (en) 1975-06-20
NL7317649A (en) 1975-06-24
NL7905328A (en) 1979-10-31
GB1490227A (en) 1977-10-26
AT336519B (en) 1977-05-10

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Legal Events

Date Code Title Description
ST Notification of lapse