EP0348603A3 - Control system for a counter-current operated tunnel furnace - Google Patents

Control system for a counter-current operated tunnel furnace Download PDF

Info

Publication number
EP0348603A3
EP0348603A3 EP19890105526 EP89105526A EP0348603A3 EP 0348603 A3 EP0348603 A3 EP 0348603A3 EP 19890105526 EP19890105526 EP 19890105526 EP 89105526 A EP89105526 A EP 89105526A EP 0348603 A3 EP0348603 A3 EP 0348603A3
Authority
EP
European Patent Office
Prior art keywords
temperature
regulated
function
smoke
control
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
EP19890105526
Other languages
German (de)
French (fr)
Other versions
EP0348603A2 (en
EP0348603B1 (en
Inventor
Johann Joas
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.)
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Original Assignee
Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
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 Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG filed Critical Hans Lingl Anlagenbau und Verfahrenstechnik GmbH and Co KG
Publication of EP0348603A2 publication Critical patent/EP0348603A2/en
Publication of EP0348603A3 publication Critical patent/EP0348603A3/en
Application granted granted Critical
Publication of EP0348603B1 publication Critical patent/EP0348603B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F27D19/00—Arrangements of controlling devices
    • 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
    • F27B9/40—Arrangements of controlling or monitoring devices
    • 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
    • F27B2009/124—Cooling
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
    • F27D2019/0018—Monitoring the temperature of the atmosphere of the kiln
    • 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
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0031—Regulation through control of the flow of the exhaust gases

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Tunnel Furnaces (AREA)
  • Furnace Details (AREA)
  • Control Of Temperature (AREA)

Abstract

Control system for a countercurrent-operated tunnel furnace with smoke-gas control by vacuum in the heating zone and with an upper and a lower temperature limitation carrying out the control of the smoke-gas line, furthermore with a combustion zone regulated as a function of temperature, with rapid cooling regulated as a function of temperature and located at the start of the cooling zone, and with direct suction regulated as a function of temperature and an inflow-air fan regulated as a function of pressure and located at the end of the cooling zone, wherein, according to the invention, when an upper or a lower limit value of the temperature is reached at a point of the cooling zone between the rapid cooling (8) and first direct suction (9), the desired pressure value of the inflow-air fan (11) is adjusted upwards or downwards and thus ensures a variation of the pressure gradient in the furnace, by means of which the control of the smoke-gas fan is influenced. <IMAGE>
EP89105526A 1988-06-29 1989-03-29 Control system for a counter-current operated tunnel furnace Expired - Lifetime EP0348603B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3821858 1988-06-29
DE3821858A DE3821858C1 (en) 1988-06-29 1988-06-29

Publications (3)

Publication Number Publication Date
EP0348603A2 EP0348603A2 (en) 1990-01-03
EP0348603A3 true EP0348603A3 (en) 1992-01-02
EP0348603B1 EP0348603B1 (en) 1994-06-01

Family

ID=6357475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105526A Expired - Lifetime EP0348603B1 (en) 1988-06-29 1989-03-29 Control system for a counter-current operated tunnel furnace

Country Status (3)

Country Link
EP (1) EP0348603B1 (en)
AT (1) ATE106538T1 (en)
DE (2) DE3821858C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423221A1 (en) * 1994-07-01 1996-01-04 Lingl Anlagenbau Heat transfer in the tunnel oven
DE4434780C1 (en) * 1994-09-29 1995-10-19 Riedhammer Gmbh Co Kg Device for regulating the gas pressure in adjacent zones of a continuous furnace
NL1000909C1 (en) * 1995-08-01 1995-11-10 Flynn Controls B V Temperature controller for a tunnel oven.
ITRE20060007A1 (en) * 2006-01-26 2007-07-27 Sacmi Forni Spa METHOD AND EQUIPMENT FOR THE OPTIMIZED MANAGEMENT OF A COOKING OVEN FOR CERAMIC TILES.
CN105202912A (en) * 2015-10-23 2015-12-30 青岛铸英特陶科技有限公司 Gas roller way kiln

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142884A (en) * 1961-10-19 1964-08-04 Pullman Inc Method and apparatus for controlling the cooling zone of a tunnel kiln
FR1517633A (en) * 1966-04-06 1968-03-15 Keller Ofenbau G M B H Process for the continuous firing of ceramic objects in tunnel kilns and tunnel kilns comprising the application of this method
FR2251790A1 (en) * 1973-11-15 1975-06-13 Leisenberg Manfred

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142884A (en) * 1961-10-19 1964-08-04 Pullman Inc Method and apparatus for controlling the cooling zone of a tunnel kiln
FR1517633A (en) * 1966-04-06 1968-03-15 Keller Ofenbau G M B H Process for the continuous firing of ceramic objects in tunnel kilns and tunnel kilns comprising the application of this method
FR2251790A1 (en) * 1973-11-15 1975-06-13 Leisenberg Manfred

Also Published As

Publication number Publication date
DE58907741D1 (en) 1994-07-07
EP0348603A2 (en) 1990-01-03
EP0348603B1 (en) 1994-06-01
DE3821858C1 (en) 1989-11-23
ATE106538T1 (en) 1994-06-15

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