GB797158A - Improvements in or relating to flotation apparatus - Google Patents

Improvements in or relating to flotation apparatus

Info

Publication number
GB797158A
GB797158A GB1020556A GB1020556A GB797158A GB 797158 A GB797158 A GB 797158A GB 1020556 A GB1020556 A GB 1020556A GB 1020556 A GB1020556 A GB 1020556A GB 797158 A GB797158 A GB 797158A
Authority
GB
United Kingdom
Prior art keywords
tank
pump
valve
suspension
line
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.)
Expired
Application number
GB1020556A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1020556A priority Critical patent/GB797158A/en
Publication of GB797158A publication Critical patent/GB797158A/en
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
    • B03D1/02—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
    • B03D1/1443—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
    • B03D1/1443—Feed or discharge mechanisms for flotation tanks
    • B03D1/1462—Discharge mechanisms for the froth
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Water Treatments (AREA)

Abstract

797,158. Treating waste effluents; purifying liquids. BAUM, R. A. April 3, 1956, No. 10205/56. Classes 46 and 111. [Also in Group VI] A suspension of material in a liquid, e.g., meat packing plant waste, is withdrawn from a tank 10, Fig. 1, through a mixer fitting 24A (see below) by a pump 11 and passed through a valve 12 to a retention tank 13. The rate of flow is regulated by a float 15 which controls through a unit 16 the compressed air supply 18 to a diaphragm 19 which operates the valve body 21 of the valve 12. Part of the suspension discharged by the pump 11, Fig. 2, is led back along a pipe 61 and through valves 111, 112, Fig. 3, and injectors 113, 114 respectively to the mixer fitting 115 (24A) which is interposed between the pump inlet line 17 and the pump. Air or other gas is drawn in at 24 to the injector 114, and aluminium sulphate solution or other chemical at 25 to the injector 113. The resulting mixtures are passed to a nozzle 119 within the fitting 115, Fig. 3, whence they are directed towards the pump in and with the main suspension stream. In the tank 13, which is maintained under pressure, the treated suspension rises over a baffle 14 and undissolved gas is vented at 27 through a valve 28. The suspension passes from the tank 13 through a pressure release valve 29, controlled by compressed air (32) regulated by a flap-closed Bourdon tube 30 and acting on the valve diaphragm 34, to a distributer tank 36 and over an adjustable weir 40 into a flotation tank 39. The froth of gas and floc rising in the tank 39 is removed to a gutter 43 by a conveyer 44 while the clarified liquid is drawn off through several outlets and passes over an adjustable weir in a chamber 45. Chemical solution is pumped along line 25 from one of two tanks 51, 511, while solution is being prepared in the other tank from concentrate from a tank 54 and liquid from a line 52. The concentration in line 25 is one pound of aluminium sulphate, expressed as Al 2 (SO 4 ) 3 .18H 2 O, per gallon and in the line leading from pump 11 to tank 13 it is 120 p.p.m., this being an optimum value in the range 60 to 180 p.p.m. The peripheral speed of the pump impeller should be between 3500 and 5500 ft. per min.
GB1020556A 1956-04-03 1956-04-03 Improvements in or relating to flotation apparatus Expired GB797158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1020556A GB797158A (en) 1956-04-03 1956-04-03 Improvements in or relating to flotation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1020556A GB797158A (en) 1956-04-03 1956-04-03 Improvements in or relating to flotation apparatus

Publications (1)

Publication Number Publication Date
GB797158A true GB797158A (en) 1958-06-25

Family

ID=9963519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1020556A Expired GB797158A (en) 1956-04-03 1956-04-03 Improvements in or relating to flotation apparatus

Country Status (1)

Country Link
GB (1) GB797158A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448044A (en) * 1968-02-15 1969-06-03 Donald E Garrett Pressure-foam fractionation
US4193869A (en) * 1974-11-21 1980-03-18 Milton Brucker Wastewater and wastewater solid processing system
FR2557814A1 (en) * 1984-01-09 1985-07-12 Escher Wyss Gmbh FLOTATION DEVICE FOR FLOATING SUSPENSION OF FIBERS OBTAINED FROM OLD PAPERS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448044A (en) * 1968-02-15 1969-06-03 Donald E Garrett Pressure-foam fractionation
US4193869A (en) * 1974-11-21 1980-03-18 Milton Brucker Wastewater and wastewater solid processing system
FR2557814A1 (en) * 1984-01-09 1985-07-12 Escher Wyss Gmbh FLOTATION DEVICE FOR FLOATING SUSPENSION OF FIBERS OBTAINED FROM OLD PAPERS

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