US2131215A - Glass tank furnace - Google Patents

Glass tank furnace Download PDF

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Publication number
US2131215A
US2131215A US69962A US6996236A US2131215A US 2131215 A US2131215 A US 2131215A US 69962 A US69962 A US 69962A US 6996236 A US6996236 A US 6996236A US 2131215 A US2131215 A US 2131215A
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US
United States
Prior art keywords
resistances
roof
furnace
glass
tank furnace
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 - Lifetime
Application number
US69962A
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English (en)
Inventor
Bivort Henri Jacques
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Individual
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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
Application granted granted Critical
Publication of US2131215A publication Critical patent/US2131215A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/033—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by using resistance heaters above or in the glass bath, i.e. by indirect resistance heating
    • C03B5/0332—Tank furnaces

Definitions

  • the present invention relates to a glass tank furnace comprising above the glass electric resistances intended for the heating thereof by radiation.
  • the electric resistances are arranged at a certain distance from the roof and are located in the direction of the width of the furnace.
  • the present invention has for its object to permit the use of furnaces of large dimensions both in width as well as in length.
  • the electric resistances which heat the glass by radiation are arranged in cavities of the roof, preferably in a detachable manner.
  • the electric resistances are arranged in the direction of the axis of the furnace.
  • Figure 1 is a longitudinal section on the line I-I of Figures 2 and 3, of a portion of a tank furnace for glass according to the invention.
  • Figure 2 is a cross-section of this furnace on the line IIII of Figures 1 and 3.
  • Figure 3 is a plan view of a portion of this furnace.
  • a tank furnace 2 containing a certain quantity of glass 3, which is heated by radiation by means of electric resistancos 4. These resistances are arranged in the longitudinal direction of the furnace. They are grouped in transverse rows in cavities 5 of the roof. The extremities la of these resistances rest on ledges 6a of parts 6 of the roof. They are surmounted by walls 1 which support other parts 8 of the roof at a certain distance from the parts 6 on which the resistances rest.
  • the roof parts 8 are independent of the roof parts 6. They may be easily removed for example by the fact of their being suspended by cables 9.
  • the part 8 of the roof which surmounts it and to remove the walls I. If necessary the resistances 4 may be mounted in the walls I and be lifted out at the same time as the latter.
  • the roof parts 6 may also be suspended by cables Hi.
  • the different parts 6 and 8 of the roof 8 may be kept in contact one with the other by suitable devices such as struts.
  • the arrangement of the electric heating resistances I in the cavities 5 of the roof protects these resistances from the currents which circulate between the glass 3 and the roof. Furthermore, the arrangement of the resistances in the longitudinal direction of the furnace and their grouping in transverse rows have for effect to diminish the surface of the refractory bricks of the roof which are in the immediate vicinity of these resistances. Actually, only the lateral surfaces of the ledges 6a are subjected to an intense radiation on the part of the resistances 4. Furthermore, the roofs may be constructed more easily in the direction of the width of the furnace than in the direction of the length on account of their smaller dimension in this direction. The resistances, whilst not being of excessive length, permit the construction of furnaces of very large dimensions both in width as well as in length. The use of resistances of normal length is, furthermore, of advantage since the risk of sagging of these resistances is less than in the case of longer resistances.
  • the grouping of the resistances in transverse rows easily permits the heating of the mass of glass according to the part of the furnace where it is located.
  • the detachable mounting of the resistances permits of their removal and their replacement according to the requirements at the moment without stopping the heating or the manufacture.
  • the electric heating resistances for the glass could also be arranged perpendicularly to the axis of the furnace.
  • a glass tank furnace comprising a roof, rows of adjacent blocks forming part of said roof disposed at a certain distance from each other so as to form cavities between them at the lower face of the roof, ledges on said blocks projecting into said cavities, electric resistances resting on said ledges, a'block above each resistance independent of the blocks on which the corresponding resistance rests, and suspension means for independently removing each of the blocks above the resistances.
  • a glass tank furnace comprising a roof, rows of adjacent blocks forming part of this roof disposed at a certain distance from each other so as to form cavities between them at the lower face of the roof in a transverse direction relatively to the longitudinal axis of the furnace,
  • a glass tank furnace comprising a roof, rows of adjacent blocks formingpart of said root disposed at a certain distance from each other so as to form cavities between them at the lower face of the roof, ledges on said blocks projecting in said cavities, electric resistances resting on said ledges, a pair of vertical walls resting on said ledges above the extremities of each electric resistance, a block resting on each pair of vertical walls independent of the blocks on which the corresponding resistance rests, and suspension means for independently removing each 01' the blocks above the resistances.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Resistance Heating (AREA)
US69962A 1935-03-22 1936-03-20 Glass tank furnace Expired - Lifetime US2131215A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE458062X 1935-03-22

Publications (1)

Publication Number Publication Date
US2131215A true US2131215A (en) 1938-09-27

Family

ID=3869932

Family Applications (1)

Application Number Title Priority Date Filing Date
US69962A Expired - Lifetime US2131215A (en) 1935-03-22 1936-03-20 Glass tank furnace

Country Status (7)

Country Link
US (1) US2131215A (ja)
BE (1) BE408578A (ja)
DE (1) DE679269C (ja)
DK (1) DK54107C (ja)
FR (1) FR803543A (ja)
GB (1) GB458062A (ja)
NL (1) NL41426C (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798336A (en) * 1952-02-23 1957-07-09 Saint Gobain Glass drawing apparatus
US3157483A (en) * 1958-04-10 1964-11-17 Libbey Owens Ford Glass Co Temperature control of molten glass
CN101659508A (zh) * 2008-08-25 2010-03-03 京东方科技集团股份有限公司 玻璃窑炉
US20160122222A1 (en) * 2013-05-14 2016-05-05 Nippon Electric Glass Co., Ltd. Feeder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798336A (en) * 1952-02-23 1957-07-09 Saint Gobain Glass drawing apparatus
US3157483A (en) * 1958-04-10 1964-11-17 Libbey Owens Ford Glass Co Temperature control of molten glass
CN101659508A (zh) * 2008-08-25 2010-03-03 京东方科技集团股份有限公司 玻璃窑炉
US20160122222A1 (en) * 2013-05-14 2016-05-05 Nippon Electric Glass Co., Ltd. Feeder

Also Published As

Publication number Publication date
BE408578A (ja)
GB458062A (en) 1936-12-11
FR803543A (fr) 1936-10-02
DK54107C (da) 1938-01-03
DE679269C (de) 1939-08-02
NL41426C (ja)

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