CA2633018A1 - An apparatus and a method for separating a flotation froth - Google Patents

An apparatus and a method for separating a flotation froth Download PDF

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Publication number
CA2633018A1
CA2633018A1 CA 2633018 CA2633018A CA2633018A1 CA 2633018 A1 CA2633018 A1 CA 2633018A1 CA 2633018 CA2633018 CA 2633018 CA 2633018 A CA2633018 A CA 2633018A CA 2633018 A1 CA2633018 A1 CA 2633018A1
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CA
Canada
Prior art keywords
separator
plates
bitumen
component
water component
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
CA 2633018
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French (fr)
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CA2633018C (en
Inventor
William L. Strand
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B & N Resources Inc
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Individual
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Priority to CA2633018A priority Critical patent/CA2633018C/en
Publication of CA2633018A1 publication Critical patent/CA2633018A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0021—Degasification of liquids by bringing the liquid in a thin layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • 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
    • B03D1/1412—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
    • B03D1/1481—Flotation machines with a plurality of parallel plates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/04—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by extraction
    • C10G1/045—Separation of insoluble materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biotechnology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Degasification And Air Bubble Elimination (AREA)

Abstract

A separator and method for separating a flotation froth into a water compone nt and a bitumen component. The separator includes a plurality of inclined plates separated by a plate separation distance, thereby providing inclined channels between the plates, a flotation froth inlet communicating with a first end of the plates, a water component outlet communicating with a second end of the plates, and a bitumen component outlet communicating with the second end. The method includes introducing the flotation froth into the separator adjacent to the first end of the plates and separately discharging the water and bitumen components from the separator adjacent to the second end of the plates. The separator may further include an air component outlet communicating with the first end of the plates, for discharging an air component of the flotation froth from the separator and the method may further include discharging the air component from the separator adjacent to the first end of the plates.

Claims (51)

1. A separator for separating a flotation froth into a water component and a bitumen component, wherein the flotation froth is comprised of between about 65 percent and about 95 percent water by weight, and wherein the flotation froth is further comprised of between about 4 percent and about 25 percent bitumen by weight, the separator comprising:

(a) a plurality of substantially parallel plates having a first end and a second end, wherein the plates are inclined at an inclination angle relative to a horizontal reference, wherein the first end of the plates is above the second end of the plates, and wherein the plates are separated from each other by a plate separation distance, thereby providing inclined channels between the plates;

(b) a flotation froth inlet communicating with the first end of the plates, for introducing the flotation froth into the separator;

(c) a water component outlet communicating with the second end of the plates, for discharging the water component from the separator; and (d) a bitumen component outlet communicating with the second end of the plates, for discharging the bitumen component from the separator, wherein the bitumen component outlet is positioned above the water component outlet.
2. The separator as claimed in claim 1 wherein each of the inclined channels defines a profile in a transverse direction, wherein the profile is comprised of at least one peak and at least one trough.
3. The separator as claimed in claim 2, further comprising an air component outlet communicating with the first end of the plates, for discharging an air component of the flotation froth from the separator.
4. The separator as claimed in claim 3 wherein each of the plates is substantially horizontal in the transverse direction and is comprised of a plurality of discontinuities so that the profile of the inclined channels is comprised of a series of alternating peaks and troughs.
5. The separator as claimed in claim 3 wherein each of the plates is substantially planar and is tilted in the transverse direction at a transverse inclination angle relative to a transverse horizontal reference so that the profile of the inclined channels is comprised of a single peak and a single trough.
6. The separator as claimed in claim 3, further comprising a feed box adjacent to the first end of the plates, for containing the flotation froth which is introduced into the separator.
7. The separator as claimed in claim 6 wherein the feed box extends above the first end of the plates.
8. The separator as claimed in claim 7, further comprising a feed box level sensor associated with the feed box, for sensing a level of the flotation froth in the feed box.
9. The separator as claimed in claim 7, further comprising a discharge box adjacent to the second end of the plates, for collecting the water component and the bitumen component before they are discharged from the separator, wherein the water component outlet communicates with the discharge box, and wherein the bitumen component outlet communicates with the discharge box.
10. The separator as claimed in claim 9, further comprising a discharge box interface sensor associated with the discharge box, for sensing an interface between the water component and the bitumen component in the discharge box.
11. The separator as claimed in claim 9 wherein the discharge box extends below the second end of the plates.
12. The separator as claimed in claim 9, further comprising a water component outlet flow regulator associated with the water component outlet, for controlling the discharging of the water component from the separator.
13. The separator as claimed in claim 12, further comprising a bitumen component outlet flow regulator associated with the bitumen component outlet, for controlling the discharging of the bitumen component from the separator,
14. The separator as claimed in claim 13, further comprising a discharge box interface sensor associated with the discharge box, for sensing an interface between the water component and the bitumen component in the discharge box.
15. The separator as claimed in claim 13, further comprising a controller operatively connected with the water component outlet flow regulator and the bitumen component outlet flow regulator.
16. The separator as claimed in claim 15, further comprising a feed box level sensor associated with the feed box, for sensing a level of the flotation froth in the feed box.
17. The separator as claimed in claim 16, further comprising a discharge box interface sensor associated with the discharge box, for sensing an interface between the water component and the bitumen component in the discharge box.
18. The separator as claimed in claim 17 wherein the controller is configured to receive data from the feed box level sensor and the discharge box interface sensor and to use the data to control the water component outlet flow regulator and the bitumen component outlet flow regulator in order to maintain the interface between the water component and the bitumen component in the discharge box above the water component outlet and below the bitumen component outlet.
19. The separator as claimed in claim 17 wherein the controller is configured to receive data from the feed box level sensor and the discharge box interface sensor and to use the data to control the water component outlet flow regulator and the bitumen component outlet flow regulator in order to maintain the level of the flotation froth in the feed box above the first end of the plates.
20. The separator as claimed in claim 19 wherein the controller is further configured to use the data to control the water component outlet flow regulator and the bitumen component outlet flow regulator in order to maintain the interface between the water component and the bitumen component in the discharge box above the water component outlet and below the bitumen component outlet.
21. The separator as claimed in claim 3 wherein the inclination angle of the plates is between about 15 degrees and about 60 degrees.
22. The separator as claimed in claim 21 wherein the plate separation distance is between about 60 millimeters and about 90 millimeters.
23. The separator as claimed in claim 21 wherein the inclination angle of the plates is between about 25 degrees and about 35 degrees.
24. The separator as claimed in claim 23 wherein the plate separation distance is between about 60 millimeters and about 80 millimeters.
25. The separator as claimed in claim 24 wherein the plate separation distance is between about 60 millimeters and about 70 millimeters.
26. The separator as claimed in claim 4 wherein the plates are configured so that a distance between adjacent peaks is between about 20 centimeters and about 30 centimeters.
27. The separator as claimed in claim 5 wherein the transverse inclination angle is between about 5 degrees and about 60 degrees.
28. The separator as claimed in claim 27 wherein the transverse inclination angle is between about 10 degrees and about 20 degrees.
29. A method of separating a flotation froth into a water component and a bitumen component, the method comprising:

(a) providing a separator comprising a plurality of substantially parallel plates having a first end and a second end, wherein the plates are inclined at an inclination angle relative to a horizontal reference, wherein the first end of the plates is above the second end of the plates, and wherein the plates are separated from each other by a plate separation distance, thereby providing inclined channels between the plates;

(b) introducing the flotation froth into the separator adjacent to the first end of the plates so that the flotation froth passes through the inclined channels from the first end of the plates toward the second end of the plates, wherein the flotation froth is comprised of between about 65 percent and about 95 percent water by weight, and wherein the flotation froth is further comprised of between about 4 percent and about 25 percent bitumen by weight; and (d) separately discharging the water component and the bitumen component from the separator adjacent to the second end of the plates.
30. The method as claimed in claim 29 wherein each of the inclined channels defines a profile in a transverse direction, wherein the profile is comprised of at least one peak and at least one trough.
31. The method as claimed in claim 30, further comprising discharging an air component of the flotation froth from the separator adjacent to the first end of the plates.
32. The method as claimed in claim 31 wherein each of the plates is substantially horizontal in the transverse direction and is comprised of a plurality of discontinuities so that the profile of the inclined channels is comprised of a series of alternating peaks and troughs.
33. The method as claimed in claim 31 wherein each of the plates is substantially planar and is tilted in the transverse direction at a transverse inclination angle relative to a transverse horizontal reference so that the profile of the inclined channels is comprised of a single peak and a single trough.
34. The method as claimed in claim 31 wherein the separator is further comprised of a feed box adjacent to the first end of the plates, wherein the feed box extends above the first end of the plates, further comprising maintaining a level of the flotation froth in the feed box above the first end of the plates.
35. The method as claimed in claim 31 wherein the separator is further comprised of a discharge box adjacent to the second end of the plates, further comprising collecting the water component and the bitumen component in the discharge box before discharging the water component and the bitumen component from the separator.
36. The method as claimed in claim 35 wherein the separator is further comprised of a water component outlet communicating with the discharge box, wherein the separator is further comprised of a bitumen component outlet communicating with the discharge box, and wherein the bitumen component outlet is positioned above the water component outlet, further comprising maintaining an interface between the water component and the bitumen component in the discharge box above the water component outlet and below the bitumen component outlet.
37. The method as claimed in claim 36 wherein the separator is further comprised of a feed box adjacent to the first end of the plates, wherein the feed box extends above the first end of the plates, further comprising maintaining a level of the flotation froth in the feed box above the first end of the plates.
38. The method as claimed in claim 37 wherein maintaining the interface in the discharge box and maintaining the level of the flotation froth in the feed box is comprised of controlling the discharging of the water component from the separator and controlling the discharging of the bitumen component from the separator.
39. The method as claimed in claim 38 wherein the discharge box extends below the second end of the plates.
40. The method as claimed in claim 31, further comprising disposing of at least a portion of the water component.
41. The method as claimed in claim 31, further comprising subjecting at least a portion of the water component to an oil sands secondary recovery process in order to recover bitumen from the water component.
42. The method as claimed in claim 31, further comprising combining at least a portion of the bitumen component with a bitumen product obtained from an oil sands primary recovery process.
43. The method as claimed in claim 31, further comprising recycling at least a portion of the bitumen component to an oil sands primary recovery process.
44. The method as claimed in claim 31 wherein the inclination angle of the plates is between about 15 degrees and about 60 degrees.
45. The method as claimed in claim 44 wherein the plate separation distance is between about 60 millimeters and about 90 millimeters.
46. The method as claimed in claim 44 wherein the inclination angle of the plates is between about 25 degrees and about 35 degrees.
47. The method as claimed in claim 46 wherein the plate separation distance is between about 60 millimeters and about 80 millimeters.
48. The method as claimed in claim 47 wherein the plate separation distance is between about 60 millimeters and about 70 millimeters.
49. The method as claimed in claim 31 wherein the plates are configured so that a distance between adjacent peaks is between about 20 centimeters and about 30 centimeters.
50. The method as claimed in claim 33 wherein the transverse inclination angle is between about 5 degrees and about 60 degrees.
51. The method as claimed in claim 50 wherein the transverse inclination angle is between about 10 degrees and about 20 degrees.
CA2633018A 2008-02-13 2008-05-30 An apparatus and a method for separating a flotation froth Active CA2633018C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2633018A CA2633018C (en) 2008-02-13 2008-05-30 An apparatus and a method for separating a flotation froth

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,621,576 2008-02-13
CA 2621576 CA2621576A1 (en) 2008-02-13 2008-02-13 An apparatus and a method for separating a flotation froth
CA2633018A CA2633018C (en) 2008-02-13 2008-05-30 An apparatus and a method for separating a flotation froth

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CA2633018C CA2633018C (en) 2011-05-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106179775A (en) * 2016-07-18 2016-12-07 中国矿业大学 A kind of fine swash plate heavily floats separator
CN113577880A (en) * 2021-07-23 2021-11-02 望谟县生态环境监测站 Water treatment filtration equipment is used in environmental monitoring laboratory
CN114887776A (en) * 2022-06-07 2022-08-12 无锡赫普轻工设备技术有限公司 Air floatation and inclined plate combined micro-particle grading device and method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105251623A (en) * 2015-11-23 2016-01-20 四川安宁铁钛股份有限公司 Middling ore box of flotation machine
GB2589558A (en) * 2019-10-23 2021-06-09 Equinor Energy As Separator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106179775A (en) * 2016-07-18 2016-12-07 中国矿业大学 A kind of fine swash plate heavily floats separator
CN106179775B (en) * 2016-07-18 2018-06-01 中国矿业大学 A kind of fine inclined plate floats sorting machine again
CN113577880A (en) * 2021-07-23 2021-11-02 望谟县生态环境监测站 Water treatment filtration equipment is used in environmental monitoring laboratory
CN114887776A (en) * 2022-06-07 2022-08-12 无锡赫普轻工设备技术有限公司 Air floatation and inclined plate combined micro-particle grading device and method
CN114887776B (en) * 2022-06-07 2024-04-19 无锡赫普轻工设备技术有限公司 Microparticle classification device and method combining air floatation and inclined plate

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Publication number Publication date
CA2633018C (en) 2011-05-03
CA2621576A1 (en) 2009-08-13

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