CA2135294A1 - Induction Dryer and Magnetic Separator - Google Patents

Induction Dryer and Magnetic Separator

Info

Publication number
CA2135294A1
CA2135294A1 CA 2135294 CA2135294A CA2135294A1 CA 2135294 A1 CA2135294 A1 CA 2135294A1 CA 2135294 CA2135294 CA 2135294 CA 2135294 A CA2135294 A CA 2135294A CA 2135294 A1 CA2135294 A1 CA 2135294A1
Authority
CA
Canada
Prior art keywords
lids
cores
heating
currents
conveyance path
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 2135294
Other languages
French (fr)
Other versions
CA2135294C (en
Inventor
Robert A. Sprenger
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.)
Nordson Corp
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 CA002135294A priority Critical patent/CA2135294C/en
Priority to AU20265/92A priority patent/AU665005B2/en
Priority to PCT/US1992/003797 priority patent/WO1993023970A1/en
Priority claimed from PCT/US1992/003797 external-priority patent/WO1993023970A1/en
Publication of CA2135294A1 publication Critical patent/CA2135294A1/en
Application granted granted Critical
Publication of CA2135294C publication Critical patent/CA2135294C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
    • F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
    • F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/36—Coil arrangements
    • H05B6/365—Coil arrangements using supplementary conductive or ferromagnetic pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0039—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising magnetic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0063—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0006—Electric heating elements or system
    • F27D2099/0015—Induction heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Drying Of Solid Materials (AREA)
  • General Induction Heating (AREA)
  • Burglar Alarm Systems (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

Apparatus for inductively heating metal can lids (50) includes high-permeability, low-conductivity cores (10, 12, 14) having at least two magnetically opposite polar portions (20, 22, 24) both directed toward a conveyance path (16) for the can lids (50).
High-frequency AC currents (68) are applied to the windings (60, 62, 64) of the cores (10, 12, 14), thereby inducing AC heating currents in the can lids (50) and heating them sufficiently to drive off moisture. The cores (10, 12, 14) may be E-shaped, and may be disposed in modules at various longitudinal positions along the conveyance path (16). Closed-loop temperature control apparatus may also be included to prevent overheating of the can closures in the event of unintended stoppage of the production line.
CA002135294A 1992-05-08 1992-05-08 Induction dryer and magnetic separator Expired - Fee Related CA2135294C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002135294A CA2135294C (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator
AU20265/92A AU665005B2 (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator
PCT/US1992/003797 WO1993023970A1 (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002135294A CA2135294C (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator
PCT/US1992/003797 WO1993023970A1 (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator

Publications (2)

Publication Number Publication Date
CA2135294A1 true CA2135294A1 (en) 1993-11-25
CA2135294C CA2135294C (en) 1998-07-14

Family

ID=4154622

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002135294A Expired - Fee Related CA2135294C (en) 1992-05-08 1992-05-08 Induction dryer and magnetic separator

Country Status (2)

Country Link
AU (1) AU665005B2 (en)
CA (1) CA2135294C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011127576A1 (en) * 2010-04-13 2011-10-20 Thermika Systems, Inc. Electromagnetic induction heating device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017704A (en) * 1974-03-28 1977-04-12 Aluminum Company Of America Induction heating apparatus and method for using the same
FR2566986B1 (en) * 1984-06-28 1986-09-19 Electricite De France ELECTROMAGNETIC INDUCTION DEVICE FOR HEATING METAL ELEMENTS
US4582972A (en) * 1984-08-22 1986-04-15 General Motors Corporation Chain feed mechanism for an induction heating furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011127576A1 (en) * 2010-04-13 2011-10-20 Thermika Systems, Inc. Electromagnetic induction heating device

Also Published As

Publication number Publication date
AU665005B2 (en) 1995-12-14
CA2135294C (en) 1998-07-14
AU2026592A (en) 1993-12-13

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed