GB1388530A - Melting and refining glass - Google Patents

Melting and refining glass

Info

Publication number
GB1388530A
GB1388530A GB3457073A GB3457073A GB1388530A GB 1388530 A GB1388530 A GB 1388530A GB 3457073 A GB3457073 A GB 3457073A GB 3457073 A GB3457073 A GB 3457073A GB 1388530 A GB1388530 A GB 1388530A
Authority
GB
United Kingdom
Prior art keywords
tank
duct
melting
vicinity
glass
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
GB3457073A
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
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 Corning Glass Works filed Critical Corning Glass Works
Publication of GB1388530A publication Critical patent/GB1388530A/en
Expired legal-status Critical Current

Links

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
    • C03B5/027—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating by passing an electric current between electrodes immersed in the glass bath, i.e. by direct resistance heating
    • C03B5/03—Tank furnaces
    • C03B5/031—Cold top tank furnaces
    • 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
    • C03B5/12—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in shaft furnaces
    • 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
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/20—Bridges, shoes, throats, or other devices for withholding dirt, foam, or batch
    • 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
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
    • 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
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/26—Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
    • C03B5/262—Drains, i.e. means to dump glass melt or remove unwanted materials

Abstract

1388530 Melting and refining glass CORNING GLASS WORKS 19 July 1973 [20 July 1972] 34570/73 Heading C1M A furnace as shown in Figs. 1 and 2 for melting and refining glass, including a tank, batch feeder means for supplying batch to an upper part of said tank, and a bottom provided with outlet means 40 for said molten and refined glass disposed at the lower end of said tank, is characterized by the outlet means being in the form of a duct 42 in contact with a portion of at least the upper surface 48 of the tank bottom 24 extending from the vicinity of the geometrical centre 64 of the bottom to the outer surface of the side of the tank 12 not below the lower surface of the tank bottom and having an inlet 44 in the vicinity of said geometrical centre and an exit 46 at the side outer surface. The duct may be made of refractory material, e.g. abutting refractory blocks. In a preferred embodiment, (Fig. 5), conduit 42a is made up of a plurality of abutting and formed refractory blocks 58 that actually constitute a part of tank bottom wall 24. Conduit 42a is lined with a metal duct 62, preferably of platinum, and its inlet 44a is not directly at the centre of the tank bottom wall. Duct 42a is also at an angle with respect to surfaces 48 and 52. In the vicinity of the geometrical centre there is located a drain 54. Alternatively, the duct may be formed solely of metal.
GB3457073A 1972-07-20 1973-07-19 Melting and refining glass Expired GB1388530A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27343672A 1972-07-20 1972-07-20

Publications (1)

Publication Number Publication Date
GB1388530A true GB1388530A (en) 1975-03-26

Family

ID=23043927

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3457073A Expired GB1388530A (en) 1972-07-20 1973-07-19 Melting and refining glass

Country Status (6)

Country Link
JP (1) JPS4959113A (en)
DE (1) DE2333544A1 (en)
ES (1) ES416943A1 (en)
FR (1) FR2194300A5 (en)
GB (1) GB1388530A (en)
NL (1) NL7310065A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016872C1 (en) * 2000-04-05 2001-10-31 Schott Glas Device for producing a glass melt

Also Published As

Publication number Publication date
JPS4959113A (en) 1974-06-08
NL7310065A (en) 1974-01-22
DE2333544A1 (en) 1974-01-31
ES416943A1 (en) 1976-03-01
FR2194300A5 (en) 1974-02-22

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee