FR2197456A5 - Tunnel furnace heated by ascending gas - from a duct beneath the hearth - Google Patents

Tunnel furnace heated by ascending gas - from a duct beneath the hearth

Info

Publication number
FR2197456A5
FR2197456A5 FR7329451A FR7329451A FR2197456A5 FR 2197456 A5 FR2197456 A5 FR 2197456A5 FR 7329451 A FR7329451 A FR 7329451A FR 7329451 A FR7329451 A FR 7329451A FR 2197456 A5 FR2197456 A5 FR 2197456A5
Authority
FR
France
Prior art keywords
hearth
tunnel furnace
furnace heated
ascending gas
gas
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
FR7329451A
Other languages
French (fr)
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.)
CEPI
Original Assignee
CEPI
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 CEPI filed Critical CEPI
Application granted granted Critical
Publication of FR2197456A5 publication Critical patent/FR2197456A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B25/00—Annealing glass products
    • C03B25/04—Annealing glass products in a continuous way
    • C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F27B2009/3027—Use of registers, partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36—Arrangements of heating devices
    • F27B2009/3623—Heaters located under the track
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/243—Endless-strand conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/0001—Heating elements or systems
    • F27D99/0033—Heating elements or systems using burners
    • F27D2099/0043—Impulse burner

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • Tunnel Furnaces (AREA)

Abstract

Fuel gas is burned in a burner jet in a recess at one end of the furnace and the hot gas is ducted at high speed along the sub hearth duct and out through ports leading up through the hearth and guided by baffles which causes the gas to circulate uniformly throughout the kiln.
FR7329451A 1972-08-17 1973-08-10 Tunnel furnace heated by ascending gas - from a duct beneath the hearth Expired FR2197456A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU65915A LU65915A1 (en) 1972-08-17 1972-08-17

Publications (1)

Publication Number Publication Date
FR2197456A5 true FR2197456A5 (en) 1974-03-22

Family

ID=19727131

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7329451A Expired FR2197456A5 (en) 1972-08-17 1973-08-10 Tunnel furnace heated by ascending gas - from a duct beneath the hearth

Country Status (2)

Country Link
FR (1) FR2197456A5 (en)
LU (1) LU65915A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446457A1 (en) * 1979-01-12 1980-08-08 Delemont Four Electr CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS
FR2488277A1 (en) * 1980-08-06 1982-02-12 Nippon Steel Corp OVEN FOR HEATING METAL AND PARTICULARLY INTERMEDIATE PROFILES BEFORE ROLLING THEM
FR2524131A1 (en) * 1982-03-25 1983-09-30 Glaskuhl Sa APPARATUS FOR THERMALLY PROCESSING OBJECTS BY CONVECTION
EP0183920A2 (en) * 1984-11-02 1986-06-11 DIDIER ENGINEERING GmbH Running process of a reheating furnace, and reheating furnace for billets, blocks or the like
EP0274206A2 (en) * 1987-01-07 1988-07-13 British Gas plc Heating stock in a heating chamber
EP0756147A1 (en) * 1995-06-30 1997-01-29 Keller GmbH Process and tunnel furnace for the firing of perforated bricks
EP0866296A1 (en) * 1997-03-17 1998-09-23 S.I.T.I. S.p.A. Società Impianti Termoelettrici Industriali Kiln for baking ceramic materials

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2446457A1 (en) * 1979-01-12 1980-08-08 Delemont Four Electr CONTINUOUS PROCESSING PROCESS BY DIFFUSION OF METAL PIECES AND MOUFLE FURNACE FOR IMPLEMENTING THE PROCESS
FR2488277A1 (en) * 1980-08-06 1982-02-12 Nippon Steel Corp OVEN FOR HEATING METAL AND PARTICULARLY INTERMEDIATE PROFILES BEFORE ROLLING THEM
FR2524131A1 (en) * 1982-03-25 1983-09-30 Glaskuhl Sa APPARATUS FOR THERMALLY PROCESSING OBJECTS BY CONVECTION
EP0090790A1 (en) * 1982-03-25 1983-10-05 Societe D'etudes Et Installations Industrielles Cnud S.A. Apparatus for the heat treatment of articles by convection
US4534780A (en) * 1982-03-25 1985-08-13 Societe D'etudes Et Installations Industrielles Cnud S.A. Apparatus for heat treatment of objects by convection
EP0183920A2 (en) * 1984-11-02 1986-06-11 DIDIER ENGINEERING GmbH Running process of a reheating furnace, and reheating furnace for billets, blocks or the like
EP0183920A3 (en) * 1984-11-02 1987-06-16 DIDIER ENGINEERING GmbH Running process of a reheating furnace, and reheating furnace for billets, blocks or the like
EP0274206A2 (en) * 1987-01-07 1988-07-13 British Gas plc Heating stock in a heating chamber
EP0274206A3 (en) * 1987-01-07 1989-08-16 British Gas Plc Heating stock in a heating chamber
EP0756147A1 (en) * 1995-06-30 1997-01-29 Keller GmbH Process and tunnel furnace for the firing of perforated bricks
EP0866296A1 (en) * 1997-03-17 1998-09-23 S.I.T.I. S.p.A. Società Impianti Termoelettrici Industriali Kiln for baking ceramic materials
US5984673A (en) * 1997-03-17 1999-11-16 Societa Impianti Termoelettrici Industriali Kiln for baking ceramic materials

Also Published As

Publication number Publication date
LU65915A1 (en) 1974-02-21

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Legal Events

Date Code Title Description
ST Notification of lapse