GB1207227A - Microwave drying method and apparatus - Google Patents

Microwave drying method and apparatus

Info

Publication number
GB1207227A
GB1207227A GB47930/68A GB4793068A GB1207227A GB 1207227 A GB1207227 A GB 1207227A GB 47930/68 A GB47930/68 A GB 47930/68A GB 4793068 A GB4793068 A GB 4793068A GB 1207227 A GB1207227 A GB 1207227A
Authority
GB
United Kingdom
Prior art keywords
gas
web
moisture
waveguide
microwave energy
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
GB47930/68A
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.)
Bechtel International Corp
Original Assignee
Bechtel International Corp
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 Bechtel International Corp filed Critical Bechtel International Corp
Publication of GB1207227A publication Critical patent/GB1207227A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it
    • 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
    • F26B3/343—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 in combination with convection
    • 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
    • H05B2206/00—Aspects relating to heating by electric, magnetic, or electromagnetic fields covered by group H05B6/00
    • H05B2206/04—Heating using microwaves
    • H05B2206/046—Microwave drying of wood, ink, food, ceramic, sintering of ceramic, clothes, hair

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Biotechnology (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

1,207,227. Drying webs or sheets. BECHTEL INTERNATIONAL CORP. 9 Oct., 1968 [10 Oct., 1967], No. 47930/68. Heading F4G. [Also in Division H5] A method of drying a web or sheet comprises applying thereto microwave energy and high speed (i.e. at least 10,000<SP>1</SP>/min.) jets of gas (e.g. air, nitrogen or superheated steam) which carry off moisture liberated by the microwave energy. Gas is passed through the conductor(s) emitting microwave energy to prevent condensation of moisture therein. In the embodiment shown, web 10 is subjected to microwave energy as it passes through sections of a meandering wave-guide 40 and to high speed gas jets from nozzle openings 62, which gas removes moisture from the boundary of the web. Pressurized heated gas is supplied by a fan to openings 62 via inlet plenums 16 and the moisture-carrying gas is exhaustedthrough outlet plenums 20 to a suction fan for re-circulation to the pressure fan. To prevent moisture condensation in the waveguide 40 gas is passed in through openings 68. The inlet end of one half of the waveguide 40 is connected via a line 38 to a microwave generator, and the outlet end has a dummy load e.g. a water-filled tube 50. The inlet and outlet ends of the other half of the waveguide are provided with adjustable impedance matching stubs 44, 52. In another embodiment (Fig. 9, not shown) in which the web is irradiated from one side only, the waveguide (90) is provided therein with strips or fingers (92). There may be more than one microwave and gas applying unit positioned across and along the path of the web.
GB47930/68A 1967-10-10 1968-10-09 Microwave drying method and apparatus Expired GB1207227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67429367A 1967-10-10 1967-10-10

Publications (1)

Publication Number Publication Date
GB1207227A true GB1207227A (en) 1970-09-30

Family

ID=24706064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47930/68A Expired GB1207227A (en) 1967-10-10 1968-10-09 Microwave drying method and apparatus

Country Status (6)

Country Link
US (1) US3491457A (en)
BR (1) BR6803000D0 (en)
DE (1) DE1802151A1 (en)
FI (1) FI46748C (en)
FR (1) FR1589265A (en)
GB (1) GB1207227A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323470B2 (en) 1998-07-16 2001-11-27 Philip S. Schmidt Method for rapid drying of coated materials with close capture of vapors
WO2007062180A1 (en) * 2005-11-23 2007-05-31 The Sherwin-Williams Company System and method to control energy input to a material

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755911A (en) * 1962-08-27 1973-09-04 R Candor Liquid removing apparatus and method
DE1921065A1 (en) * 1969-04-25 1970-11-12 Denso Chemie Gmbh Method and device for dielectric heating of objects
US3636637A (en) * 1970-05-06 1972-01-25 Graphic Pollution Control Inc Method and apparatus for drying liquid deposited on liquid receptive material
US3672066A (en) * 1970-10-30 1972-06-27 Bechtel Int Corp Microwave drying apparatus
US3678594A (en) * 1970-12-16 1972-07-25 Bechtel Int Corp Paper making system and apparatus
US3707773A (en) * 1971-01-27 1973-01-02 Service Business Forms Multi-line gluing of superimposed leaves
JPS4711862U (en) * 1971-03-09 1972-10-12
JPS547885B1 (en) * 1971-04-01 1979-04-11
US3829985A (en) * 1972-06-23 1974-08-20 Western Electric Co Apparatus for drying pulp-insulated wire
DE3071159D1 (en) * 1979-03-31 1985-11-14 Osaka Gas Co Ltd High-frequency heating device
US4365422A (en) * 1981-04-16 1982-12-28 The Ichikin, Ltd. Method and apparatus for continual treatment of textile sheet material by application of microwaves
US4684440A (en) * 1985-12-09 1987-08-04 Paper Chemistry Laboratory, Inc. Method for manufacturing paper products
US5114539A (en) * 1985-12-09 1992-05-19 Paper Chemistry Laboratory, Inc. Methods for manufacturing paper products
SE460499B (en) * 1988-07-15 1989-10-16 Loeoef Nils Oskar T SEAT AND DEVICE FOR DRYING OF TANKS AND SIMILAR PRODUCTS
US5114684A (en) * 1990-12-13 1992-05-19 Serawaste Systems Corporation In-line electromagnetic energy wave applicator
US5423260A (en) * 1993-09-22 1995-06-13 Rockwell International Corporation Device for heating a printed web for a printing press
US6246037B1 (en) * 1999-08-11 2001-06-12 Industrial Microwave Systems, Inc. Method and apparatus for electromagnetic exposure of planar or other materials
US6938358B2 (en) 2002-02-15 2005-09-06 International Business Machines Corporation Method and apparatus for electromagnetic drying of printed media
DE102005054995B4 (en) * 2005-07-28 2014-03-13 Otto Junker Gmbh Nozzle system for the treatment of sheet material
JP4527670B2 (en) * 2006-01-25 2010-08-18 東京エレクトロン株式会社 Heat treatment apparatus, heat treatment method, control program, and computer-readable storage medium
US7877895B2 (en) * 2006-06-26 2011-02-01 Tokyo Electron Limited Substrate processing apparatus
CA2755039C (en) * 2009-04-28 2015-07-07 Enwave Corporation Apparatus and method for dehydrating biological materials
CN113411929B (en) * 2020-03-17 2024-02-20 宏硕***股份有限公司 Waveguide of microwave heating device and microwave heating device
US11558938B2 (en) 2020-04-20 2023-01-17 Wave Power Technology Inc. Microwave heating device and microwave guiding tube thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042145A (en) * 1931-03-05 1936-05-26 William A Darrah Process of evaporating and equipment therefor
US2226871A (en) * 1938-04-09 1940-12-31 Hall Printing Co W F Apparatus for drying
US2560903A (en) * 1949-08-27 1951-07-17 Raytheon Mfg Co Wave guide dielectric heating apparatus
US3237314A (en) * 1963-03-04 1966-03-01 Hupp Corp Process of drying one or more materials impregnated in or on a traveling carrier
DE1237886B (en) * 1963-08-17 1967-03-30 Kurt Duennebier Method and device for drying the gumming of the closure flaps of flat bags, envelopes or the like in the machine for their production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6323470B2 (en) 1998-07-16 2001-11-27 Philip S. Schmidt Method for rapid drying of coated materials with close capture of vapors
WO2007062180A1 (en) * 2005-11-23 2007-05-31 The Sherwin-Williams Company System and method to control energy input to a material

Also Published As

Publication number Publication date
BR6803000D0 (en) 1973-01-25
DE1802151A1 (en) 1969-06-26
FR1589265A (en) 1970-03-23
FI46748B (en) 1973-02-28
US3491457A (en) 1970-01-27
FI46748C (en) 1973-06-11

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414E Application relinquished (sect. 14/1949)
CSNS Application of which complete specification have been accepted and published, but patent is not sealed