EP0133175A2 - Verfahren zur Kontrollierung der Heizung von Koksöfen - Google Patents

Verfahren zur Kontrollierung der Heizung von Koksöfen Download PDF

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Publication number
EP0133175A2
EP0133175A2 EP84870098A EP84870098A EP0133175A2 EP 0133175 A2 EP0133175 A2 EP 0133175A2 EP 84870098 A EP84870098 A EP 84870098A EP 84870098 A EP84870098 A EP 84870098A EP 0133175 A2 EP0133175 A2 EP 0133175A2
Authority
EP
European Patent Office
Prior art keywords
temperature
coke
salmon
points
pedestal
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.)
Withdrawn
Application number
EP84870098A
Other languages
English (en)
French (fr)
Other versions
EP0133175A3 (de
Inventor
Roger Franssen
Robert Pirlet
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of EP0133175A2 publication Critical patent/EP0133175A2/de
Publication of EP0133175A3 publication Critical patent/EP0133175A3/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B21/00—Heating of coke ovens with combustible gases
    • C10B21/20—Methods of heating ovens of the chamber oven type

Definitions

  • the present invention relates to a method for controlling the heating of coke ovens.
  • this known method has a significant drawback with regard to the agreement of the temperature measurements on the pedestal on the one hand and on the coke salmon on the other hand. In fact, it does not make it possible to ensure that these two series of temperature measurements are carried out at geometrically corresponding points of the pike and the salmon.
  • the thermal maps obtained can only provide qualitative information, which is not always sufficient to ensure precise control of the heating of the pedestal.
  • the subject of the present invention is a method making it possible to remedy this drawback by automatically reconciling the temperature measurements on the breast and on the salmon.
  • the coke guide 1 is provided with three fixed pyrometers 2, 3 and 4, disposed at known levels, designed a 30 opposite the coke cake during the discharge of coke.
  • the temperature measurements recorded by these three pyrometers are preprocessed by a processing unit 5 with microprocessor, on board the coke guide, then they are transmitted to a central computer 6 by transmission units 7 and 8.
  • the unloader 9 is also provided with three pyrometers 1 0 , 11 and 12, which are introduced into the cell during the unloading, in order to target the surface of the pedestal corresponding to the face of the coke salmon targeted by the pyrometers of the guide- coke.
  • the pyrometers 10, 11 and 12 are arranged at the same level as the pyrometers 2,3 and 4 respectively.
  • the pyrometers of the feeder are preferably placed at the rear of the shield, so that the measurement is not distorted either by the cooling caused by the entry of fresh air, or by the feeder ram.
  • the temperature measurements obtained are preprocessed by a processing unit 13 with a microprocessor, then they are also transmitted to the central computer 6 by transmission units 14 and 8.
  • the value of the temperatures of the surface of the pedestal measured by the three pyrometers 10, 11 and 12 is noted. This generates a table of temperature values corresponding to the successive preselected positions of the shield. .
  • the time of these measurements is also noted by means of a Dréel time clock incorporated in the processing unit 13. In this way, a second table is generated providing time marks corresponding to the same successive positions of the shield.
  • the processing unit 5 of the coke guide is also provided with a real-time clock, the synchronization of which with the clock of the feeder is periodically controlled by the central computer 6.
  • temperature measurements are taken on the salmon in the process of being cooked, at a rate higher than that which corresponds to a resolution of a quarter of flue for maximum discharge speed. These temperature measurements are taken continuously, even outside the charging period. They are stored, with their time marks, in a memory capable of storing the information provided during at least one normal service. The content of the memory is regularly renewed by replacing the oldest data with new data.
  • the processing unit 13 of the discharge machine gives the order to interrupt the measurements to the processing unit 5 of the coke guide.
  • the central computer 6 By means of the central computer 6, the table of time marks from the feeder is transmitted to the coke guide and the values of the temperatures corresponding to the time marks provided by the second measurement table are extracted from the memory of the coke guide. the feeder.
  • the temperature values relating to each quarter of the flue and emanating from both the furnace and the coke guide, are then transmitted to the central computer 6.
  • the latter is thus able to establish two geometrically superimposed thermal maps representing respectively the surface of the pedestal and the corresponding side face of the coke salmon.
  • the present invention relates to a process for establishing thermal maps, geometrically superimposable, corresponding to a surface of the pedestal and to the corresponding side face of the coke salmon. , in order to control the heating of this pedestal.
  • the method of controlling the heating of coke ovens which is the subject of the present invention, in which a thermal map of the surface of a pedestal as well as the corresponding side face of a coke salmon is established, is essentially characterized in that one selects temperature measurement points distributed over the surface of said pedestal, in that during the discharge of said coke salmon, the temperature of said surface is measured at the place of selected measurement points, in that there is a first series of time marks respectively relating to temperature measurements of the surface of the pedestal, in that also during the charging of said coke salmon, the temperature is measured of the lateral face of said salmon at a number of points at least equal to the number of said selected measurement points and preferably comprising points corresponding at least to part of said selected measurement points, in that the there is a second series of time marks respectively relating to temperature measurements of the lateral face of the coke salmon, in that one selects in the said second series at least one time mark corresponding to a time mark of the said first series, and in that we deduce the value of the temperature at a geometrically
  • the temperature of the surface of said pedestal at the location of said selected measurement points is measured, by means of mobile sensors positioned at said locations and moving, preferably horizontally, in front of said surface and the temperature of said points on the lateral face of the coke salmon is measured by means of fixed sensors, arranged at the same levels as said mobile sensors.
  • the mobile sensors are preferably mounted at the rear of the shield of the machine and the fixed sensors are advantageously placed on the coke guide.
  • the temperature of the surface of said pedestal and of the lateral face of said coke salmon is measured at determined time intervals, corresponding to the time taken by said mobile sensors to cover the distance, preferably horizontal. , separating two successive measurement points.
  • the various mobile sensors are preferably driven by an equal speed of movement. It would not, however, depart from the scope of the invention to use mobile sensors moving at different speeds and to adapt the time intervals between two consecutive temperature measurements accordingly.
  • the temperature of the successive points on the surface of said pedestal is measured with a frequency which depends on the speed of movement of said mobile sensors, a table of time marks corresponding to the instants is drawn up.
  • the temperature of the lateral face of the said coke salmon is measured with a frequency greater than the frequency of the temperature measurements on the said surface, a ta- b1e of the time markers corresponding to the instants of measurement of the temperatures on said side face, the two tables of time markers are related to a common time scale, and we extract from the series of temperatures measured on the side face of said coke salmon the values whose time mark corresponds to the time mark of the temperatures measured at the location of the successive measurement points on the surface of said pedestal.
  • the method of the invention makes it possible to obtain a geometrical agreement of the temperature measurements during the discharge of a coke salmon, without it being necessary to transmit synchronization signals during the discharge itself. It also makes it possible to work without being affected by transient disturbances of the transmission, since the information having undergone disturbances can easily be repeated.
  • the appearance of the thermal map of the wall makes it possible to verify the conformity of the effective heating of the pedestal with the desired heating program and, if necessary, to remedy irregularities in the heating.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Coke Industry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Control Of Temperature (AREA)
EP84870098A 1983-07-19 1984-07-10 Verfahren zur Kontrollierung der Heizung von Koksöfen Withdrawn EP0133175A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6047849 1983-07-19
BE6047849 1983-07-19

Publications (2)

Publication Number Publication Date
EP0133175A2 true EP0133175A2 (de) 1985-02-13
EP0133175A3 EP0133175A3 (de) 1986-05-14

Family

ID=3874930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84870098A Withdrawn EP0133175A3 (de) 1983-07-19 1984-07-10 Verfahren zur Kontrollierung der Heizung von Koksöfen

Country Status (2)

Country Link
EP (1) EP0133175A3 (de)
JP (1) JPS6076590A (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE872544A (fr) * 1978-12-05 1979-03-30 Centre Rech Metallurgique Procede pour ameliorer le controle du chauffage des fours a coke
DE3148314A1 (de) * 1981-12-07 1983-06-09 Ruhrkohle Ag "vorrichtung zur temperaturmessung von koksofenkammerwaenden"
BE893431A (fr) * 1982-06-04 1982-10-01 Centre Rech Metallurgique Procede de controle de la conduite des fours a coke

Also Published As

Publication number Publication date
EP0133175A3 (de) 1986-05-14
JPS6076590A (ja) 1985-05-01

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Inventor name: PIRLET, ROBERT

Inventor name: FRANSSEN, ROGER