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JPS6422341A - Raw material feeder - Google Patents

Raw material feeder

Info

Publication number
JPS6422341A
JPS6422341A JP17654787A JP17654787A JPS6422341A JP S6422341 A JPS6422341 A JP S6422341A JP 17654787 A JP17654787 A JP 17654787A JP 17654787 A JP17654787 A JP 17654787A JP S6422341 A JPS6422341 A JP S6422341A
Authority
JP
Japan
Prior art keywords
raw material
pipe
raw
forced
material feed
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.)
Pending
Application number
JP17654787A
Other languages
Japanese (ja)
Inventor
Hiroaki Konishi
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP17654787A priority Critical patent/JPS6422341A/en
Publication of JPS6422341A publication Critical patent/JPS6422341A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01413—Reactant delivery systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/80—Feeding the burner or the burner-heated deposition site
    • C03B2207/81—Constructional details of the feed line, e.g. heating, insulation, material, manifolds, filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

PURPOSE:To prevent the flowing out of a raw material from an opening and closing valve by providing an operating valve to be opened from the raw material feed pipe side to the forced-feed gas pipe side at a pressure lower than the withstanding pressure of both opening and closing valves provided to the raw material feed pipe to a bypass pipe. CONSTITUTION:The raw liq. 8 flowing into the forced-feed gas pipe 16 is sent into a raw material container 12 by the gas supplied to the forced-feed gas pipe 16 when the supply of the raw liq. 8 to a raw material feed tank 1 is started. Consequently, the expansion of the raw liq. 5 enclosed in the raw material feed pipe 13 when thermally expanded is always absorbed by the internal space of the forced-feed gas pipe 16. As a result, an increase in the internal pressure of the raw material feed pipe 13 is prevented, and the leakage of the raw liq. 8 from the opening and closing valves 14 and 15 provided to the raw material feed pipe 13 is avoided.
JP17654787A 1987-07-15 1987-07-15 Raw material feeder Pending JPS6422341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17654787A JPS6422341A (en) 1987-07-15 1987-07-15 Raw material feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17654787A JPS6422341A (en) 1987-07-15 1987-07-15 Raw material feeder

Publications (1)

Publication Number Publication Date
JPS6422341A true JPS6422341A (en) 1989-01-25

Family

ID=16015492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17654787A Pending JPS6422341A (en) 1987-07-15 1987-07-15 Raw material feeder

Country Status (1)

Country Link
JP (1) JPS6422341A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998007509A1 (en) * 1996-08-23 1998-02-26 Nikon Corporation Liquid material feeding apparatus and liquid material feeding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998007509A1 (en) * 1996-08-23 1998-02-26 Nikon Corporation Liquid material feeding apparatus and liquid material feeding method

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