FR2390691A2 - Tunnel kiln for ceramic prods. - where gases used in the cooling zone are fed through the heating zone to raise thermal efficiency - Google Patents

Tunnel kiln for ceramic prods. - where gases used in the cooling zone are fed through the heating zone to raise thermal efficiency

Info

Publication number
FR2390691A2
FR2390691A2 FR7814104A FR7814104A FR2390691A2 FR 2390691 A2 FR2390691 A2 FR 2390691A2 FR 7814104 A FR7814104 A FR 7814104A FR 7814104 A FR7814104 A FR 7814104A FR 2390691 A2 FR2390691 A2 FR 2390691A2
Authority
FR
France
Prior art keywords
zone
prods
tunnel
thermal efficiency
baking
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
FR7814104A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2390691A2 publication Critical patent/FR2390691A2/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/021—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces having two or more parallel tracks
    • F27B9/022—With two tracks moving in opposite directions
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F27B2009/122—Preheating
    • 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
    • F27B9/26—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 on or in trucks, sleds, or containers
    • F27B9/262—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 on or in trucks, sleds, or containers on or in trucks
    • F27B2009/266—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 on or in trucks, sleds, or containers on or in trucks the truck having conducts for guiding the oven atmosphere
    • F27B2009/268—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 on or in trucks, sleds, or containers on or in trucks the truck having conducts for guiding the oven atmosphere through the structure of the car and through the charge
    • 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
    • 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
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • F27D2007/045—Fans
    • 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
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tunnel Furnaces (AREA)

Abstract

The parent specification described the baking of prods. conveyed along a thermally-insulated tunnel through a heating zone (a); baking zone (b) and then a cooling zone (c). The gas atmos. in zones (a, c) does not move in the longitudinal direction (l) of the tunnel, but circulates in a transverse direction between zones (a, c). The novelty in the present invention is that the gas travels vertically up zone (c), horizontally above the prods. to zone (a), then vertically down zone (a), and horizontally below the prods. back to zone (c), i.e. in a closed loop. The pref. plant is a tunnel kiln, where two parallel tunnels form zones (a, c) and are sepd. by a wall with a top and bottom opening for the horizontal travel of gases in the closed loop. The prods. moving through tunnel (a) travel in the opposite direction to the prods. moving through tunnel (c). Used for baking clay and porcelain prods. As compared with the main patent, the thermal efficiency and productivity of the kiln is increased.
FR7814104A 1977-05-14 1978-05-08 Tunnel kiln for ceramic prods. - where gases used in the cooling zone are fed through the heating zone to raise thermal efficiency Pending FR2390691A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772721948 DE2721948A1 (en) 1977-05-14 1977-05-14 METHOD AND DEVICE FOR HEAT TREATMENT OF GOODS

Publications (1)

Publication Number Publication Date
FR2390691A2 true FR2390691A2 (en) 1978-12-08

Family

ID=6009020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814104A Pending FR2390691A2 (en) 1977-05-14 1978-05-08 Tunnel kiln for ceramic prods. - where gases used in the cooling zone are fed through the heating zone to raise thermal efficiency

Country Status (2)

Country Link
DE (1) DE2721948A1 (en)
FR (1) FR2390691A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500606A1 (en) * 1981-02-25 1982-08-27 Rossetti Vincenzo ADDITIONAL HEAT RECOVERY SYSTEM IN QUICK BALL HEATERS
EP0177917A2 (en) * 1984-10-08 1986-04-16 Rudolf Riedel Tunnel furnace with two paralel ducts
WO2001071265A1 (en) * 2000-03-22 2001-09-27 Anglo American Corporation Of South Africa Limited Heating solid material in two opposite streams
WO2009068505A1 (en) * 2007-11-26 2009-06-04 Umicore Ag & Co. Kg Tunnel furnace for the temperature treatment of goods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA312180A (en) * 1980-06-12 1986-03-15 Walter Ing Rieger METHOD FOR BURNING THIN-WALLED CERAMIC MOLDINGS CONTAINING IN PARTICULAR CORE HOLES, AND SYSTEM FOR IMPLEMENTING THE METHOD
DE3437237A1 (en) * 1984-10-08 1986-04-17 Rudolf 2106 Bendestorf Riedel Tunnel furnace with two parallel ducts
DE3640727A1 (en) * 1986-11-28 1988-06-09 Apt Anlagen Fuer Pyrotechnik METHOD FOR HEAT TREATING, IN PARTICULAR, IN PARTICULAR FLAT BODIES, MADE OF CERAMIC MATERIAL, AND RUN-ON OVEN FOR IMPLEMENTING THE METHOD
EP2944904B1 (en) * 2014-05-13 2020-04-01 Keller H.C.W. GmbH Kiln for the firing of ceramic blanks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1332501A (en) * 1919-03-01 1920-03-02 Charles J Kirk Heat-treating furnace
FR1002114A (en) * 1946-07-29 1952-03-03 Oven
DE928719C (en) * 1950-11-26 1955-06-10 Benno Schilde Maschb Ag Continuous furnace

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1332501A (en) * 1919-03-01 1920-03-02 Charles J Kirk Heat-treating furnace
FR1002114A (en) * 1946-07-29 1952-03-03 Oven
DE928719C (en) * 1950-11-26 1955-06-10 Benno Schilde Maschb Ag Continuous furnace

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500606A1 (en) * 1981-02-25 1982-08-27 Rossetti Vincenzo ADDITIONAL HEAT RECOVERY SYSTEM IN QUICK BALL HEATERS
EP0177917A2 (en) * 1984-10-08 1986-04-16 Rudolf Riedel Tunnel furnace with two paralel ducts
EP0177917A3 (en) * 1984-10-08 1988-11-30 Rudolf Riedel Tunnel furnace with two paralel ducts
WO2001071265A1 (en) * 2000-03-22 2001-09-27 Anglo American Corporation Of South Africa Limited Heating solid material in two opposite streams
WO2009068505A1 (en) * 2007-11-26 2009-06-04 Umicore Ag & Co. Kg Tunnel furnace for the temperature treatment of goods
US8476559B2 (en) 2007-11-26 2013-07-02 Umicore Ag & Co. Kg Tunnel furnace for the temperature treatment of goods
EP2220449B1 (en) 2007-11-26 2019-05-08 Umicore AG & Co. KG Tunnel furnace for the temperature treatment of goods

Also Published As

Publication number Publication date
DE2721948A1 (en) 1978-11-23

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