GB683701A - An electric smelter for producing porcelain - Google Patents

An electric smelter for producing porcelain

Info

Publication number
GB683701A
GB683701A GB3057049A GB3057049A GB683701A GB 683701 A GB683701 A GB 683701A GB 3057049 A GB3057049 A GB 3057049A GB 3057049 A GB3057049 A GB 3057049A GB 683701 A GB683701 A GB 683701A
Authority
GB
United Kingdom
Prior art keywords
chamber
electrodes
fining
melting
smelter
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
GB3057049A
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.)
Ferro Corp
Original Assignee
Ferro Enamel 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
Priority to NL686808021A priority Critical patent/NL151861B/en
Priority to US91394A priority patent/US2559683A/en
Application filed by Ferro Enamel Corp filed Critical Ferro Enamel Corp
Priority to GB3057049A priority patent/GB683701A/en
Priority to US183802A priority patent/US2610217A/en
Priority to DEF3270A priority patent/DE832986C/en
Publication of GB683701A publication Critical patent/GB683701A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/26Outlets, e.g. drains, siphons; Overflows, e.g. for supplying the float tank, tweels
    • C03B5/262Drains, i.e. means to dump glass melt or remove unwanted materials
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/027Melting 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
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/02Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in electric furnaces, e.g. by dielectric heating
    • C03B5/027Melting 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
    • C03B5/03Tank furnaces
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/04Melting in furnaces; Furnaces so far as specially adapted for glass manufacture in tank furnaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Furnace Details (AREA)

Abstract

683,701. Electric furnace for porcelain enamel. THORNTON, A A. (Ferro Enamel Corporation). Nov. 29, 1949, No. 30570/49. Class 39(iii) [Also in Group XXIII] A smelter for the continuous production of porcelain enamel comprises separate melting and fining chambers 20, 21 connected by separate passages 29, 23 for the hot gases and molten material arranged respectively above and below the normal bath level, the material being heated by current passed therethrough between horizontal electrodes 24 in both chambers. One electrode is arranged on each of two opposite sides of the fining chamber, and two electrodes on two opposite sides of the melting chamber, the two electrodes on the same side of the melting chamber being of the same polarity. The raw material is pushed by a screw feeder 26 on to the top of material floating in the melting chamber 20 which is wider than the fining chamber and has a flue outlet 28. The electrodes 24 are rectangular plates of molybdenum, tungsten or nickel, are wholly submerged and have horizontal water-cooled supply conductors passing through the furnace wall. Hot gases flow from the fining chamber 21 through the passage 29 in a refractory bridge wall 22 into the melting chamber. The fining chamber is heated sufficiently to retain the enamel molten and has an overflow outlet- 27 and a spout 7 for draining the smelter at the end of an operation. The smelter is flooded with carbon dioxide during emptying to prevent oxidation of the electrodes. The porcelain comprises a sodium borosilicate glass matrix with a uniformly dispersed spacifier e.g. zirconium oxide and contains fluorine, very little of which is lost during smelting (see Group XXIII). Current supply to the melting and refining chambers is from separate power circuits, with transformers having variable voltage control through saturable core reactors comprising a series of A.C. windings on a core with D.C. windings, so that if the small D.C. current is increased the A.C. voltage to the load is increased. The output voltage is controlled by the bath temperature or by power input as indicated by a controlling pyrometer. The current to the fining chamber may be from a single phase transformer with variable voltage taps.
GB3057049A 1949-03-15 1949-11-29 An electric smelter for producing porcelain Expired GB683701A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL686808021A NL151861B (en) 1949-03-15 PHASE DISCRIMINATOR.
US91394A US2559683A (en) 1949-03-15 1949-05-04 Electric enamel furnace
GB3057049A GB683701A (en) 1949-11-29 1949-11-29 An electric smelter for producing porcelain
US183802A US2610217A (en) 1949-03-15 1950-09-08 Electric enamel furnace
DEF3270A DE832986C (en) 1949-03-15 1950-09-23 Method and device for the production of enamel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3057049A GB683701A (en) 1949-11-29 1949-11-29 An electric smelter for producing porcelain

Publications (1)

Publication Number Publication Date
GB683701A true GB683701A (en) 1952-12-03

Family

ID=10309703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3057049A Expired GB683701A (en) 1949-03-15 1949-11-29 An electric smelter for producing porcelain

Country Status (1)

Country Link
GB (1) GB683701A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564121A (en) * 2012-01-17 2012-07-11 张家港市宏基铝业有限公司 Spinning furnace
CN110078356A (en) * 2019-06-14 2019-08-02 郑州纬通电熔新材料科技有限公司 The vertical glass-melting furnace of clean manufacturing based on electric energy

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564121A (en) * 2012-01-17 2012-07-11 张家港市宏基铝业有限公司 Spinning furnace
CN102564121B (en) * 2012-01-17 2013-10-23 张家港市宏基铝业有限公司 Spinning furnace
CN110078356A (en) * 2019-06-14 2019-08-02 郑州纬通电熔新材料科技有限公司 The vertical glass-melting furnace of clean manufacturing based on electric energy
CN110078356B (en) * 2019-06-14 2024-01-12 郑州纬通电熔新材料科技有限公司 Vertical glass melting furnace for clean production based on electric energy

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