FR2268760A1 - Crystallisable or ordinary flat glass sheet mfr. - using controlled temp. and convection in small or large furnaces - Google Patents

Crystallisable or ordinary flat glass sheet mfr. - using controlled temp. and convection in small or large furnaces

Info

Publication number
FR2268760A1
FR2268760A1 FR7513382A FR7513382A FR2268760A1 FR 2268760 A1 FR2268760 A1 FR 2268760A1 FR 7513382 A FR7513382 A FR 7513382A FR 7513382 A FR7513382 A FR 7513382A FR 2268760 A1 FR2268760 A1 FR 2268760A1
Authority
FR
France
Prior art keywords
mfr
crystallisable
fed
convection
temp
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
FR7513382A
Other languages
French (fr)
Other versions
FR2268760B1 (en
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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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
Priority claimed from US465053A external-priority patent/US3928014A/en
Application filed by PPG Industries Inc filed Critical PPG Industries Inc
Publication of FR2268760A1 publication Critical patent/FR2268760A1/en
Application granted granted Critical
Publication of FR2268760B1 publication Critical patent/FR2268760B1/fr
Granted 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
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/18—Stirring devices; Homogenisation
    • C03B5/193—Stirring devices; Homogenisation using gas, e.g. bubblers
    • 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
    • C03B5/235—Heating the glass
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Glass Compositions (AREA)

Abstract

Flat glass mfr. in a regenerative furnace heated over its entire length, with an inlet for the frit and min. five burner openings along its length. Plus a refining zone which is shallow that the melting zone in which the frit swims initially on the bath. Below 50% of the total fuel is fed through the first three burner-openings very near the inlet end, and >=50% of the total fuel is fed through the remaining burner openings so that the temp. in the refining zone is maintained in a suitable range to convey the glass for making an endless flat sheet. Pref. 40% of the total fuel is fed through the first three burners and >=60% through the remainder and the total aire for combustion is pref. the 1:1 stoichiometric ratio. Used e.g. for mfr. of crystallisable glass used for semi-crystalline stove tops. Controlled temp. and convection currents are obtd. in the furnace.
FR7513382A 1974-04-29 1975-04-29 Crystallisable or ordinary flat glass sheet mfr. - using controlled temp. and convection in small or large furnaces Granted FR2268760A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US465053A US3928014A (en) 1974-04-29 1974-04-29 Method for producing flat glass
US56492575A 1975-04-03 1975-04-03

Publications (2)

Publication Number Publication Date
FR2268760A1 true FR2268760A1 (en) 1975-11-21
FR2268760B1 FR2268760B1 (en) 1977-04-15

Family

ID=27041195

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7513382A Granted FR2268760A1 (en) 1974-04-29 1975-04-29 Crystallisable or ordinary flat glass sheet mfr. - using controlled temp. and convection in small or large furnaces

Country Status (10)

Country Link
AR (1) AR209101A1 (en)
AU (1) AU8026075A (en)
BR (1) BR7502589A (en)
DE (1) DE2518635C3 (en)
DK (1) DK184675A (en)
ES (1) ES436954A1 (en)
FR (1) FR2268760A1 (en)
IT (1) IT1032769B (en)
NL (1) NL7505004A (en)
SE (1) SE7504848L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348161A1 (en) * 1976-04-12 1977-11-10 Bfg Glassgroup SHEET OR GLASS TAPE MANUFACTURING FACILITY

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2348161A1 (en) * 1976-04-12 1977-11-10 Bfg Glassgroup SHEET OR GLASS TAPE MANUFACTURING FACILITY

Also Published As

Publication number Publication date
IT1032769B (en) 1979-06-20
AU8026075A (en) 1976-10-21
ES436954A1 (en) 1977-01-16
SE7504848L (en) 1976-01-02
NL7505004A (en) 1975-10-31
DE2518635B2 (en) 1977-12-15
DE2518635C3 (en) 1978-08-10
AR209101A1 (en) 1977-03-31
FR2268760B1 (en) 1977-04-15
BR7502589A (en) 1976-03-09
DK184675A (en) 1975-10-30
DE2518635A1 (en) 1975-11-06

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Legal Events

Date Code Title Description
ST Notification of lapse