EP0150289B1 - System for the positioning of coke oven machines - Google Patents

System for the positioning of coke oven machines Download PDF

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Publication number
EP0150289B1
EP0150289B1 EP84113640A EP84113640A EP0150289B1 EP 0150289 B1 EP0150289 B1 EP 0150289B1 EP 84113640 A EP84113640 A EP 84113640A EP 84113640 A EP84113640 A EP 84113640A EP 0150289 B1 EP0150289 B1 EP 0150289B1
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EP
European Patent Office
Prior art keywords
positioning
identification
signal
markings
coke oven
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EP84113640A
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German (de)
French (fr)
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EP0150289B2 (en
EP0150289A2 (en
EP0150289A3 (en
Inventor
Manfred Dr. Gfrerer
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Siemens AG
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Siemens AG
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Priority to AT84113640T priority Critical patent/ATE26995T1/en
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    • 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

Definitions

  • the invention relates to an arrangement of the type referred to in the preamble of claim 1.
  • a coke oven plant usually consists of a coke oven that is divided into several successive chambers, which are provided with openings that can be closed by chamber doors on the side and on the top.
  • Operating machines which can be moved on rails and are suitable for operating each of the oven chambers after the respectively associated chamber doors have been opened are arranged on both longitudinal sides and on the top of the oven, i. H. to load the chamber in question and to empty it after the end of the coking process by pushing the glowing coke onto a fire truck. To ensure trouble-free operation, it is necessary to precisely position the operating machines at the right time.
  • the center of the individual oven chambers is determined by additional magnets on the code plates and correspondingly arranged magnetic receivers on the operating machines.
  • the reading device emits positive or negative voltages which, as setpoint values dependent on the direction of travel, influence the speed control of the travel drives until the machine in the center of the furnace is stopped with signal «0.
  • a positioning method by magnetic means has a relatively flat running in the zero range curve of the magnetic field strength depending on the direction of motion and thus also the erzeu g- by the Hall generators th control voltage.
  • the present invention is based on the object of designing an arrangement of the type mentioned at the outset in such a way that millimeter-precise positioning of the operating machines in a predetermined position is possible in spite of large amounts of dust and heat.
  • the positioning arrangement of an operating machine consists of a travel detection module 1, to which a signal transmitter 2 for travel detection and an angular step signal transmitter 3 coupled to the drive motor are assigned.
  • the location signal detected by this position detection module 1 is supplied to an identification and positioning module 4 as well as to a reference command value transmitter 5.
  • This is connected to control electronics 6 for the drive motor 7 of the relevant operating machine, not shown. All units mentioned communicate via one Data bus 8 with a process computer, not shown.
  • the identification and positioning module 4 is connected to a signal transmitter 9 arranged on the operating machine, which generates identification and positioning signals in a manner to be described in connection with signal plates (not shown) attached to the coke oven.
  • the position detection module 1 After determining the respective location of the operating machine in question by the position detection module 1, the latter generates a location signal which is compared in the process computer with the target location value. From these two values, the command setpoint generator 5 is supplied with a signal determining the direction of movement. This gives the control electronics 6 a corresponding switch-on and direction of rotation command, the execution of which is reported via the data bus 8 to the process computer.
  • the identification and positioning module 4 receives a release command from the position detection module 1 and directional information from the process computer. As soon as the signal generator 9 reaches a signal plate, the identification and positioning module 4 controls the guide setpoint generator 5 for the location-dependent speed setpoint output and issues start and stop commands. The location is determined with the aid of an identification code assigned to each breakpoint, while the breakpoint itself is determined in a manner to be described with the aid of two positioning markings arranged on each signal plate in cooperation with a corresponding number of light barriers assigned by the signal transmitters 9.
  • FIG. 2 A possible embodiment of a signal generator 9 of the type described above with one of the assigned coding plates 10 is shown in FIG. 2.
  • the signal transmitter 9 is expediently assigned to the operating machine to be controlled and the marking plate to the relevant furnace chamber.
  • the U-shaped signal transmitter 9 has infrared light transmitters 11, 12, 15 in one of its legs and infrared light receivers 13, 14, 16 in the opposite leg. Each transmitter and receiver form an infrared light barrier.
  • the arrangement is such that two of these light barriers with the transmitters 11 and 12 and the associated receivers 13 and 14 for precise positioning and the remaining 8, with respect to the aforementioned light barriers arranged upwards, with the transmitters 15 and the receivers 16 Identification of the stopping point assigned to the respective furnace chamber (reading device).
  • the marking plate 10 has correspondingly arranged, infrared-opaque markings.
  • the two lower markings 18, 19 projecting somewhat laterally from the support body 17 of the marking plate 10 are arranged such that they at least partially interrupt the two positioning light barriers 11, 13 and 12, 14 in the holding position. At least one of these markings is provided with an elongated hole in the direction of movement of the marking plate 10 for adjustment purposes, so that after loosening an adjusting screw 20 this marking can be adjusted by a certain amount in the direction of movement.
  • the upper edge of the support body 17 is provided with identification markings 21 projecting outside. They are placed in such a way that they completely interrupt the identification light barriers 15, 16 assigned to them at the breakpoints. Due to the number and arrangement of these identification markings, a specific coding can be assigned to each breakpoint, so that a suitably programmed read memory is able to identify the breakpoint in question.
  • Each of the infrared transmitters and infrared receivers is connected to the identification and positioning module 4, which evaluates the identification and positioning signals transmitted by the receivers 13, 14, 16 in connection with the central process computer.
  • a functional diagram is shown, from which the principle of operation of the arrangement emerges.
  • This includes a positioning light barrier 22, consisting of the positioning transmitter 23 with the transmitting diode 24 and the optical lens 25, and the positioning receiver 26 with the receiving diode 27 and the optical lens 28, and an identification light barrier 29, consisting of the identification transmitter 30 with the Transmitting diode 31 and the optical lens 32, and the identification receiver 33 with the receiver diode 34 and the optical lens 35 are shown.
  • the transmitters and receivers of the aforementioned light barriers 22, 29 are connected to the identification and positioning assembly 4 via a cable 36.
  • This has a logic module 37, a read memory 38 with a position indicator 39, a position evaluation module 40, an automatic read-monitoring module 41 and a power supply part 42.
  • the process computer supplies the logic module 37 via line 43 with an enable signal, it switches on the positioning transmitter and receiver, so that their transmitter diodes emit infrared light, which is converted into parallel light beams by the associated optical lenses, which are emitted by the opposite optical lenses assigned to the receivers are focused on the receiver diode assigned to the respective light barrier.
  • the marking plate 10 is initially outside the effective range of the light barriers and the operator machine in question is moving towards the signal transmitter.
  • the outer edge of the positioning marker 19 first reaches the positioning light barrier 11, 13 facing it, so that it crosses the cross section of the light beam from zero over a maximum value in the middle of the light barrier runs through until complete interruption at the end (Fig. 2). The one assigned to this light barrier.
  • Positioning receiver transmits this via the position evaluation module 40, which supplies the process computer with a start marking pulse via line 44, and the logic module 37 of the identification and positioning module 4.
  • This has at the beginning of the journey from the process computer via Line 45 receives a target direction specification information and now checks whether the direction of movement of the operating machine corresponds to the desired direction specification. If this is not the case, the process computer stops the drive 7 via the control electronics 6 by means of a corresponding control pulse at the control setpoint generator 5 and, by means of further control pulses, reverses the direction of rotation and restarts the drive machine 7 in the opposite direction.
  • the position evaluation module feeds the process computer a “pre-position impulse” via line 46, whereupon the latter instructs the command setpoint generator 5 to switch to “creep speed” during one of the path detection Assembly 1 predetermined path of the operating machine.
  • the position evaluation module 40 receives a corresponding pulse from the assigned positioning receiver and reports this to the logic module 37, which in turn reads the memory 38 and puts the identification transmitter and the identification receiver into operation. The identification receivers then feed their identification pulses to the read memory 38, which then forwards the read coding via the data bus 47 to the process computer.
  • the process computer reports this to the logic module 37, which resets the position evaluation module 40, so that the drive of the operating machine concerned is not stopped, thus eliminating the "creep speed" and the Operating machine can continue their way with normal driving.
  • the position evaluation module 40 sends an “in-position signal” to the process computer via line 48 when the desired position is reached.
  • the position evaluation module 40 supplies the guide setpoint generator 5 with a stop signal, which in turn via the control electronics 6 Drive motor 7 of the operating machine stops.
  • the read memory 38 outputs its content in a position display 39, which displays the position reached in digital form.
  • the logic module 37 receives an enable and renewed directional signal from the process computer.
  • the position evaluation module 40 sends a “post-position pulse” to the process computer via line 48.
  • the automatic reading monitoring module 41 is released, which constantly checks the reading device 15, 16 for errors if both positioning light barriers 11, 13 and 12, 14 are not covered. If an error occurs, position evaluation module 40 and read memory are reset and the error is reported to the process computer. This decides whether the journey is continued or interrupted.
  • the position evaluation module of the identification and positioning module assigned to this signal transmitter sends a corresponding signal to the process computer and the process described is repeated.
  • the position marker 18 is provided with an elongated hole.
  • the sensitivity and tolerance of the position markers it is possible to set the sensitivity and tolerance of the position markers to the desired value and thus also the hysteresis, i. H. to optimize the deviation of the target position depending on the direction of travel, d. H. to choose the most favorable value depending on the various parameters of the operating machine.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Control Of Conveyors (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

At a coke oven of a coking plant, each operating machine is provided with a U-shaped detector unit equipped with infrared light gates. Each operating station of the coke oven is provided with a signal plate carrying positioning marker elements for fine tuning the positioning of the operating machine at the operating station and with identification marker elements for identifying the respective operating stations. Each infrared light gate includes an infrared light source and an infrared light sensor connected to an electronic evaluation circuit comprising a memory with a reading monitor for detecting and correlating the coded identification markers on the signal plates. The electronic evaluation circuit also includes an electronic position evaluation subcircuit which controls the drive of the respective coke oven operating machine to move the same at a reduced speed if a first positioning pulse is transmitted and to stop the operating machine upon the occurrence of a pair of positioning pulses as well as an identification signal identifying a desired operating station.

Description

Die Erfindung betrifft eine Anordnung der im Oberbegriff des Anspruchs 1 bezeichneten Art.The invention relates to an arrangement of the type referred to in the preamble of claim 1.

Eine Kokereianlage besteht üblicherweise aus einem Koksofen, der in mehrere hintereinanderliegende Kammern aufgeteilt ist, die zu ihrer Bedienung seitlich und oben mit durch Kammertüren verschließbaren Öffnungen versehen sind. An beiden Längsseiten und auf der Oberseite des Ofens sind auf Schienen verfahrbare Bedienungsmaschinen angeordnet, die geeignet sind, jede der Ofenkammern nach dem Öffnen der jeweils zugeordneten Kammertüren zu bedienen, d. h. die betreffende Kammer zu beschicken und nach dem Ende des Verkokungsprozesses durch Ausschieben des glühenden Kokses auf einen Löschwagen zu entleeren. Um einen störungsfreien Betrieb sicherzustellen, ist es notwendig, die Bedienungsmaschinen zum richtigen Zeitpunkt präzise zu positionieren.A coke oven plant usually consists of a coke oven that is divided into several successive chambers, which are provided with openings that can be closed by chamber doors on the side and on the top. Operating machines which can be moved on rails and are suitable for operating each of the oven chambers after the respectively associated chamber doors have been opened are arranged on both longitudinal sides and on the top of the oven, i. H. to load the chamber in question and to empty it after the end of the coking process by pushing the glowing coke onto a fire truck. To ensure trouble-free operation, it is necessary to precisely position the operating machines at the right time.

Um dies zu erreichen, ist aus der DE-OS 26 48-049 ein Verfahren zur Steuerung und Überwachung des Betriebes von Koksofenbedienungsmaschinen bekannt, mit dem sowohl die Wegerfassung der Bedienungsmaschinen wie deren Feinpositionierung und Gleichstandsüberwachung möglich ist. Dazu sind an den Haltepunkten der einzelnen Koksofenbedienungsmaschinen entlang ihrer Fahrbahn Codeplatten montiert, deren Informationsinhalt von an den Maschinen angebrachten Leseeinrichtungen in der entsprechenden Position erfaßt werden. Diese Codeplatten dienen gleichzeitig dazu, die Mitte der jeweiligen Ofenkammer zwecks Feinpositionierung der Bedienungsmaschinen zu erfassen. Aus einem Vergleich der von einem zentralen Steuergerät vorgegebenen Sollziele mit den Istpositionen der Bedienungsmaschinen werden Signale für die Steuerung der Fahrantriebe abgeleitet, durch welche die Maschinen exakt in Ofenmitte zum Stillstand kommen. Die Mittenerfassung der einzelnen Ofenkammern wird durch zusätzliche Magnete auf den Codeplatten und entsprechend angeordneten magnetischen Empfängern an den Bedienungsmaschinen vorgenommen. Je nach Richtung und Abstand von der Ofenmitte gibt dabei die Leseeinrichtung positive oder negative Spannungen ab, die als fahrtrichtungsabhängige Sollwerte die Drehzahlsteuerung der Fahrantriebe solange beeinflussen, bis bei Signal « 0 die Maschine in Ofenmitte stillgesetzt wird.In order to achieve this, a method for controlling and monitoring the operation of coke oven operating machines is known from DE-OS 26 48-049, with which both the path detection of the operating machines as well as their fine positioning and balance monitoring is possible. For this purpose, code plates are mounted at the stopping points of the individual coke oven operating machines along their carriageway, the information content of which is detected in the corresponding position by reading devices attached to the machines. These code plates also serve to detect the center of the respective furnace chamber for the purpose of fine positioning of the operating machines. From a comparison of the target targets specified by a central control device with the actual positions of the operating machines, signals for the control of the travel drives are derived, by means of which the machines come to a standstill exactly in the middle of the furnace. The center of the individual oven chambers is determined by additional magnets on the code plates and correspondingly arranged magnetic receivers on the operating machines. Depending on the direction and distance from the center of the furnace, the reading device emits positive or negative voltages which, as setpoint values dependent on the direction of travel, influence the speed control of the travel drives until the machine in the center of the furnace is stopped with signal «0.

Ein Positionierungsverfahren mit magnetischen Mitteln hat eine im Nullbereich relativ flach verlaufenden Kurve der magnetischen Feldstärke in Abhängigkeit von der Bewegungsrichtung und damit auch der von den Hallgeneratoren erzeug- ten Steuerspannung.A positioning method by magnetic means has a relatively flat running in the zero range curve of the magnetic field strength depending on the direction of motion and thus also the erzeu g- by the Hall generators th control voltage.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Anordnung der eingangs genannten Art so zu gestalten, daß eine millimetergenaue Positionierung der Bedienungsmaschinen in einer vorgegebenen Position trotz großer Staubund Hitzeentwicklung möglich ist.The present invention is based on the object of designing an arrangement of the type mentioned at the outset in such a way that millimeter-precise positioning of the operating machines in a predetermined position is possible in spite of large amounts of dust and heat.

Diese Aufgabe wird durch die im Patentanspruch 1 angegebene Erfindung gelöst.This object is achieved by the invention specified in claim 1.

Dadurch ist erreicht, daß für die Identifizierung des jeweiligen Haltepunktes und für die genaue Positionierung der betreffenden Bedienungsmaschine mit identischen technischen Mitteln gearbeitet werden kann, was erheblich zur Vereinfachung des Systems und zu seiner kompakten Anordnung beiträgt, so daß die rauhen, von Staub und Hitze geprägten Umweltbedingungen, vor allem wegen der Verwendung von Infrarotlicht als Informationsträger, keinen Einfluß auf die Genauigkeit des Systems haben. Durch die Möglichkeit der Bündelung von Infrarotlicht mit optischen Mitteln und die dadurch erzielbare Lichtschrankenbildung läßt sich gegenüber magnetischen Feldern als Informationsträger eine große Ansprechgenauigkeit bei hoher Ansprechgeschwindigkeit erreichen, die es unter anderem gestattet, Standortidentifizierungen ohne Fahrtunterbrechung vorzunehmen.It is thereby achieved that identical technical means can be used for the identification of the respective stopping point and for the exact positioning of the operating machine in question, which contributes considerably to simplifying the system and to its compact arrangement, so that the rough, dust and heat embossed Environmental conditions, especially because of the use of infrared light as an information carrier, have no influence on the accuracy of the system. Due to the possibility of bundling infrared light with optical means and the light barrier formation that can be achieved as a result, great response accuracy with high response speed can be achieved compared to magnetic fields as information carriers, which among other things makes it possible to carry out location identifications without interrupting the journey.

Vorteilhafte Weiterbildungen und Ausgestaltungen der Anordnung nach Patentanspruch 1 sind in den Unteransprüchen gekennzeichnet. Dabei ermöglicht die Ausführungsform nach Patentanspruch 2 trotz der sehr kompakten Anordnung von Positions- und Identifikationsmarkierungen auf einer einzigen Platte die Fahrtrichtungserkennung, Positionsidentifizierung und Feinpositionierung der zugeordneten Bedienungsmaschine.Advantageous further developments and refinements of the arrangement according to claim 1 are characterized in the subclaims. The embodiment according to claim 2 enables the detection of the direction of travel, position identification and fine positioning of the assigned operating machine despite the very compact arrangement of position and identification markings on a single plate.

Ein Ausführungsbeispiel der Erfindung wird anhand der Zeichnungen im folgenden näher erläutert. Es zeigen:

  • Figur 1 ein Blockschaltbild der Anordnung mit einer Wegerfassungsbaugruppe, einer Identifizierungs- und Positionierungsbaugruppe, einem Führungssollwertgeber sowie einer Steuerungselektronik für die Steuerung des Antriebsmotors einer Bedienungsmaschine,
  • Figur 2 die räumliche Prinzipdarstellung der Signalgebereinheit mit zugeordneter Signalplatte der Identifizierungs- und Positionierungs- baugruppe und
  • Figur 3 ein Funktionsschema der Identifizierungs- und Positionierungsbaugruppe mit zugeordneter Signalgebereinheit.
An embodiment of the invention is explained in more detail below with reference to the drawings. Show it:
  • FIG. 1 shows a block diagram of the arrangement with a position detection module, an identification and positioning module, a guide setpoint generator and control electronics for controlling the drive motor of an operating machine,
  • Figure 2 shows the basic spatial representation of the signal generator unit with an associated signal plate of the identification and positioning module and
  • Figure 3 is a functional diagram of the identification and positioning assembly with an associated signal transmitter unit.

Gemäß dem Blockschaltbild in Fig. 1 besteht die Positionierungsanordnung einer Bedienungsmaschine aus einer Wegerfassungsbaugruppe 1, der ein Signalgeber 2 für die Wegerfassung und ein mit dem Antriebsmotor gekuppelter Winkelschritt-Signalgeber 3 zugeordnet sind. Das von dieser Wegerfassungsbaugruppe 1 erfaßte Standortsignal wird sowohl einer Identifizierungs-und Positionierungs-baugruppe 4 als auch einem Führungssollwertgeber 5 zugeführt. Dieser wiederum ist mit einer Steuerungselektronik 6 für den Antriebsmotor 7 der betreffenden, nicht dargestellten Bedienungsmaschine verbunden. Alle genannten Einheiten kommunizieren über einen Datenbus 8 mit einem nicht dargestellten Prozeßrechner. Die Identifizierungs- und Positionierungsbaugruppe 4 ist mit einem an der Bedienungsmaschine angeordneten Signalgeber 9 verbunden, der in Verbindung mit am Koksofen befestigten nicht dargestellten Signalplatten auf noch zu beschreibende Weise Identifizierungs-und Positionierungssignale erzeugt.According to the block diagram in FIG. 1, the positioning arrangement of an operating machine consists of a travel detection module 1, to which a signal transmitter 2 for travel detection and an angular step signal transmitter 3 coupled to the drive motor are assigned. The location signal detected by this position detection module 1 is supplied to an identification and positioning module 4 as well as to a reference command value transmitter 5. This in turn is connected to control electronics 6 for the drive motor 7 of the relevant operating machine, not shown. All units mentioned communicate via one Data bus 8 with a process computer, not shown. The identification and positioning module 4 is connected to a signal transmitter 9 arranged on the operating machine, which generates identification and positioning signals in a manner to be described in connection with signal plates (not shown) attached to the coke oven.

Nach Ermittlung des jeweiligen Standortes der betreffenden Bedienungsmaschine durch die Wegerfassungsbaugruppe 1 erzeugt diese ein Standortsignal, welches im Prozeßrechner mit dem Standort-Sollwert verglichen wird. Aus diesen beiden Werten wird dem Führungssollwertgeber 5 ein die Bewegungsrichtung bestimmendes Signal zugeführt. Dieser erteilt der Steuerungselektronik 6 einen entsprechenden Einschalt- und Drehrichtungsbefehl, dessen Ausführung über den Datenbus 8 an den Prozeßrechner gemeldet wird. Gleichzeitig erhält die Identifizierungs- und Positionierungsbaugruppe 4 von der Wegerfassungsbaugruppe 1 einen Freigabebefehl und vom Prozeßrechner eine Richtungsvorgabeinformation. Sobald der Signalgeber 9 eine Signalplatte erreicht, steuert die Identifizierungs- und Positionierungsbaugruppe 4 den Führungssollwertgeber 5 zur standortabhängigen Geschwindigkeitssollwertausgabe und erteilt Start- und Stopbefehle. Dabei geschieht die Standortbestimmung mit Hilfe eines jedem Haltepunkt zugeordneten Identifizierungscodes während der Haltepunkt selbst mit Hilfe zweier auf jeder Signalplatte angeordneter Positionierungsmarkierungen im Zusammenarbeit mit einer entsprechenden Anzahl von den Signalgebern 9 zugeordneten Lichtschranken auf noch zu beschreibende Weise bestimmt wird.After determining the respective location of the operating machine in question by the position detection module 1, the latter generates a location signal which is compared in the process computer with the target location value. From these two values, the command setpoint generator 5 is supplied with a signal determining the direction of movement. This gives the control electronics 6 a corresponding switch-on and direction of rotation command, the execution of which is reported via the data bus 8 to the process computer. At the same time, the identification and positioning module 4 receives a release command from the position detection module 1 and directional information from the process computer. As soon as the signal generator 9 reaches a signal plate, the identification and positioning module 4 controls the guide setpoint generator 5 for the location-dependent speed setpoint output and issues start and stop commands. The location is determined with the aid of an identification code assigned to each breakpoint, while the breakpoint itself is determined in a manner to be described with the aid of two positioning markings arranged on each signal plate in cooperation with a corresponding number of light barriers assigned by the signal transmitters 9.

Eine mögliche Ausführungsform eines Signalgebers 9 der vorbeschriebenen Art mit einer der zugeordneten Codierungsplatten 10 ist in Fig. 2 dargestellt. Dabei ist der Signalgeber 9 zweckmäßigerweise der zu steuernden Bedienungsmaschine und die Markierungsplatte der betreffenden Ofenkammer zugeordnet. Der U-förmig gestaltete Signalgeber 9 besitzt in einem seiner Schenkel Infrarotlichtsender 11, 12, 15 und im gegenüberliegenden Schenkel Infrarotlichtempfänger 13, 14, 16. Je ein Sender und Empfänger bilden eine Infrarot-Lichtschranke. Dabei ist die Anordnung so getroffen, daß zwei dieser Lichtschranken mit den Sendern 11 und 12 sowie den zugeordneten Empfängern 13 und 14 zur genauen Positionierung und die übrigen 8, gegenüber den vorgenannten nach oben versetzt angeordneten Lichtschranken, mit den Sendern 15 und den Empfängern 16 der Identifizierung des der jeweiligen Ofenkammer zugeordneten Haltepunktes dienen (Leseeinrichtung). Die Markierungsplatte 10 besitzt entsprechend angeordnete, infrarotlicht-undurchlässige Markierungen. Die beiden, den Tragkörper 17 der Markierungsplatte 10 seitlich etwas überragenden unteren Markierungen 18, 19 sind so angeordnet, daß sie in der Halteposition die beiden Positionierungslichtschranken 11, 13 bzw. 12, 14 mindestens teilweise unterbrechen. Mindestens eine dieser Markierungen ist in Bewegungsrichtung der Markierungsplatte 10 zu Justierzwecken mit einem Langloch versehen, so daß nach Lösen einer Einstellschraube 20 diese Markierung um einen bestimmten Betrag in Bewegungsrichtung verstellbar ist. Oberhalb dieser Positionsmarkierungen sind die Oberkante des Tragkörpers 17 außen überragende Identifikationsmarkierungen 21 angeordnet. Sie sind so plaziert, daß sie an den Haltepunkten die ihnen zugeordneten Identifizierungslichtschranken 15, 16 vollständig unterbrechen. Durch Anzahl und Anordnung dieser Identifizierungsmarkierungen kann jedem Haltepunkt eine bestimmte Codierung zugeordnet werden, so daß ein entsprechend programmierter Lesespeicher in der Lage ist, den betreffenden Haltepunkt zu identifizieren.A possible embodiment of a signal generator 9 of the type described above with one of the assigned coding plates 10 is shown in FIG. 2. The signal transmitter 9 is expediently assigned to the operating machine to be controlled and the marking plate to the relevant furnace chamber. The U-shaped signal transmitter 9 has infrared light transmitters 11, 12, 15 in one of its legs and infrared light receivers 13, 14, 16 in the opposite leg. Each transmitter and receiver form an infrared light barrier. The arrangement is such that two of these light barriers with the transmitters 11 and 12 and the associated receivers 13 and 14 for precise positioning and the remaining 8, with respect to the aforementioned light barriers arranged upwards, with the transmitters 15 and the receivers 16 Identification of the stopping point assigned to the respective furnace chamber (reading device). The marking plate 10 has correspondingly arranged, infrared-opaque markings. The two lower markings 18, 19 projecting somewhat laterally from the support body 17 of the marking plate 10 are arranged such that they at least partially interrupt the two positioning light barriers 11, 13 and 12, 14 in the holding position. At least one of these markings is provided with an elongated hole in the direction of movement of the marking plate 10 for adjustment purposes, so that after loosening an adjusting screw 20 this marking can be adjusted by a certain amount in the direction of movement. Above these position markings, the upper edge of the support body 17 is provided with identification markings 21 projecting outside. They are placed in such a way that they completely interrupt the identification light barriers 15, 16 assigned to them at the breakpoints. Due to the number and arrangement of these identification markings, a specific coding can be assigned to each breakpoint, so that a suitably programmed read memory is able to identify the breakpoint in question.

Jeder der Infrarotsender und Infrarotempfänger ist mit der Identifizierungs- und Positionierungs- baugruppe 4 verbunden, welche die von den Empfängern 13, 14, 16 übermittelten Identifizierungs- und Positionierungssignale in Verbindung mit dem zentralen Prozeßrechner auswertet.Each of the infrared transmitters and infrared receivers is connected to the identification and positioning module 4, which evaluates the identification and positioning signals transmitted by the receivers 13, 14, 16 in connection with the central process computer.

In Fig. 3 ist ein Funktionsschema gezeigt, aus dem die prinzipielle Arbeitsweise der Anordnung hervorgeht. Darin sind eine Positionierungs-Lichtschranke 22, bestehend aus dem Positionierungssender 23 mit der Sendediode 24 und der optischen Linse 25 sowie dem Positionierungsempfänger 26 mit der Empfängerdiode 27 und der optischen Linse 28, sowie eine Identifizierungs-Lichtschranke 29, bestehend aus dem Identifizierungssender 30 mit der Sendediode 31 und der optischen Linse 32, sowie dem Identifizierungsempfänger 33 mit der Empfängerdiode 34 und der optischen Linse 35 dargestellt. Die Sender und Empfänger der vorerwähnten Lichtschranken 22, 29 sind über ein Kabel 36 mit der Identifizierungs-und Positionierungs-Baugruppe 4 verbunden. Diese besitzt einen Logik-Baustein 37, einen Lesespeicher 38 mit einer Positionsanzeige 39, einen Positions-Auswertungs-Baustein 40, einen automatischen Lese-Überwachungs-Baustein 41 sowie einen Stromversorgungsteil 42.In Fig. 3, a functional diagram is shown, from which the principle of operation of the arrangement emerges. This includes a positioning light barrier 22, consisting of the positioning transmitter 23 with the transmitting diode 24 and the optical lens 25, and the positioning receiver 26 with the receiving diode 27 and the optical lens 28, and an identification light barrier 29, consisting of the identification transmitter 30 with the Transmitting diode 31 and the optical lens 32, and the identification receiver 33 with the receiver diode 34 and the optical lens 35 are shown. The transmitters and receivers of the aforementioned light barriers 22, 29 are connected to the identification and positioning assembly 4 via a cable 36. This has a logic module 37, a read memory 38 with a position indicator 39, a position evaluation module 40, an automatic read-monitoring module 41 and a power supply part 42.

Wenn vom Prozeßrechner dem Logik-Baustein 37 über die Leitung 43 ein Freigabesignal zugeführt wird, schaltet dieser die Positionierungs-Sender- und Empfänger ein, so daß deren Sendedioden Infrarotlicht aussenden, welches durch die zugeordneten optischen Linsen in parallele Lichtstrahlen verwandelt wird, die von den gegenüberliegenden, den Empfängern zugeordneten optischen Linsen auf die der jeweiligen Lichtschranke zugeordnete Empfängerdiode fokussiert werden. Es sei angenommen, daß sich die Markierungsplatte 10 zunächst außerhalb des Wirkungsbereiches der Lichtschranken befindet und sich die betreffende Bedienungsmaschine auf den Signalgeber zubewegt. Dabei erreicht zunächst die Außenkante der Positionierungsmarkierung 19 die ihr zugewandte Positionierungslichtschranke 11, 13, so daß sie den Querschnitt des Lichtstrahles von Null beginnend über einen Maximalwert in der Mitte der Lichtschranke bis zur vollständigen Unterbrechung am Ende durchläuft (Fig. 2). Der dieser Lichtschranke zugeordnete. Positionierungsempfänger übermittelt dies über den Positions-Auswertungs-Baustein 40, der dem Prozeßrechner über die Leitung 44 einen Beginn-Markierungs-Impuls zuführt, und dem Logik-Baustein 37 der Identifizierungs- und Positionierungsbaugruppe 4. Dieser hat zu Beginn der Fahrt vom Prozeßrechner über die Leitung 45 eine Soll-Richtungsvorgabeinformation erhalten und prüft nun, ob die Bewegungsrichtung der Bedienungsmaschine der gewünschten Richtungsvorgabe entspricht. Ist dies nicht der Fall, hält der Prozeßrechner durch einen entsprechenden Steuerungsimpuls an den Führungssollwertgeber 5 den Antrieb 7 über die Steuerungselektronik 6 an und sorgt durch weitere Steuerimpulse für eine Drehrichtungsumkehr und das Wiederanfahren der Antriebsmaschine 7 in umgekehrter Richtung. Stimmt die angefahrene Richtung mit der Richtungsvorgabe überein, führt der Positions-Auswertungs-Baustein dem Prozeßrechner über die Leitung 46 einen « Vor- Positions-Impuls » zu, worauf dieser den Führungssollwertgeber 5 zu einer Umschaltung auf « Schleichgang » während eines von der Wegerfassungs-Baugruppe 1 vorgegebenen Weges der Bedienungsmaschine veranlaßt. Sobald nun die Außenkante der Positionierungsmarkierung 19 die weitere Positionierungs-Lichtschranke 12, 14 erreicht (Fig. 2), erhält der Positions-Auswertungs-Baustein 40 einen entsprechenden Impuls des zugeordneten Positionierungsempfängers und meldet dies dem Logik-Baustein 37, der seinerseits den Lesespeicher 38 und die identifizierungssender und die Identifizierungsempfänger in Betrieb setzt. Daraufhin führen die Identifizierungsempfänger dem Lesespeicher 38 ihre Identifizierungsimpulse zu, der die gelesene Codierung über den Datenbus 47 an den Prozeßrechner weitergibt. Stimmt die gelesene Codierung mit der Sollcodierung nicht überein, meldet der Prozeßrechner dies dem Logik-Baustein 37, der den Positions-Auswertungs-Baustein 40 zurücksetzt, so daß keine Stillsetzung des Antriebs der betreffenden Bedienungsmaschine erfolgt, womit der « Schleichgang » aufgehoben wird und die Bedienungsmaschine ihren Weg mit normaler Fahrt fortsetzen kann. Stimmt hingegen die gelesene Codierung mit der Solicodierung überein, gibt der Positions-Auswertungs-Baustein 40 bei Erreichen der Sollposition über die Leitung 48 ein « in-Positions-Signal » an den Prozeßrechner. Sobald die Positionierungslichtschranken 11, 13 und 12, 14 von den Markierungen 18, 19 so weit abgedeckt sind, daß deren Empfänger ansprechen, führt der Positions-Auswertungs-Baustein 40 dem Führungssollwertgeber 5 ein Stop-Signal zu, der seinerseits über die Steuerungslektronik 6 den Antriebsmotor 7 der Bedienungsmaschine stillsetzt. Gleichzeitig gibt der Lesespeicher 38 seinen Inhalt in eine Positionsanzeige 39 aus, die die jeweils erreichte Position in digitaler Form anzeigt.If the process computer supplies the logic module 37 via line 43 with an enable signal, it switches on the positioning transmitter and receiver, so that their transmitter diodes emit infrared light, which is converted into parallel light beams by the associated optical lenses, which are emitted by the opposite optical lenses assigned to the receivers are focused on the receiver diode assigned to the respective light barrier. It is assumed that the marking plate 10 is initially outside the effective range of the light barriers and the operator machine in question is moving towards the signal transmitter. The outer edge of the positioning marker 19 first reaches the positioning light barrier 11, 13 facing it, so that it crosses the cross section of the light beam from zero over a maximum value in the middle of the light barrier runs through until complete interruption at the end (Fig. 2). The one assigned to this light barrier. Positioning receiver transmits this via the position evaluation module 40, which supplies the process computer with a start marking pulse via line 44, and the logic module 37 of the identification and positioning module 4. This has at the beginning of the journey from the process computer via Line 45 receives a target direction specification information and now checks whether the direction of movement of the operating machine corresponds to the desired direction specification. If this is not the case, the process computer stops the drive 7 via the control electronics 6 by means of a corresponding control pulse at the control setpoint generator 5 and, by means of further control pulses, reverses the direction of rotation and restarts the drive machine 7 in the opposite direction. If the approached direction coincides with the direction specification, the position evaluation module feeds the process computer a “pre-position impulse” via line 46, whereupon the latter instructs the command setpoint generator 5 to switch to “creep speed” during one of the path detection Assembly 1 predetermined path of the operating machine. As soon as the outer edge of the positioning marker 19 reaches the further positioning light barrier 12, 14 (FIG. 2), the position evaluation module 40 receives a corresponding pulse from the assigned positioning receiver and reports this to the logic module 37, which in turn reads the memory 38 and puts the identification transmitter and the identification receiver into operation. The identification receivers then feed their identification pulses to the read memory 38, which then forwards the read coding via the data bus 47 to the process computer. If the read coding does not match the target coding, the process computer reports this to the logic module 37, which resets the position evaluation module 40, so that the drive of the operating machine concerned is not stopped, thus eliminating the "creep speed" and the Operating machine can continue their way with normal driving. If, on the other hand, the read coding corresponds to the solo coding, the position evaluation module 40 sends an “in-position signal” to the process computer via line 48 when the desired position is reached. As soon as the positioning light barriers 11, 13 and 12, 14 are covered by the markings 18, 19 to such an extent that their receivers respond, the position evaluation module 40 supplies the guide setpoint generator 5 with a stop signal, which in turn via the control electronics 6 Drive motor 7 of the operating machine stops. At the same time, the read memory 38 outputs its content in a position display 39, which displays the position reached in digital form.

Wenn auch die übrigen Bedienungsmaschinen ihre Sollposition erreicht haben, kann der Füllungs- bzw. Entleerungsvorgang erfolgen. Nach dessen Beendigung erhält der Logik-Baustein 37 vom Prozeßrechner ein Freigabe-und erneutes Richtungsvorgabesignal. Sobald eine der Positionierungs-Lichtschranken wieder frei ist, gibt der Positions-Auswertungs-Baustein 40 über die Leitung 48 einen « Nach-Positions-Impuls an den Prozeßrechner. Gleichzeitig wird der automatische Lese-Überwachungs-Baustein 41 freigegeben, der die Leseeinrichtung 15, 16 ständig auf Fehler überprüft, wenn beide Positionierungslichtschranken 11, 13 und 12, 14 nicht abgedeckt werden. Tritt ein Fehler auf, werden Positions-Auswertungs-Baustein 40 und Lesespeicher rückgesetzt und der Fehler dem Prozeßrechner gemeldet. Dieser entscheidet, ob die Fahrt fortgesetzt oder unterbrochen wird.When the other operating machines have also reached their desired position, the filling or emptying process can take place. After its completion, the logic module 37 receives an enable and renewed directional signal from the process computer. As soon as one of the positioning light barriers is free again, the position evaluation module 40 sends a “post-position pulse” to the process computer via line 48. At the same time, the automatic reading monitoring module 41 is released, which constantly checks the reading device 15, 16 for errors if both positioning light barriers 11, 13 and 12, 14 are not covered. If an error occurs, position evaluation module 40 and read memory are reset and the error is reported to the process computer. This decides whether the journey is continued or interrupted.

Wenn die Markierungsplatte 10 mit der Außenkante einer ihrer Positionsmarkierungen 18, 19 den nächsten Signalgeber erreicht hat und eine der Positionierungs-Lichtschranken unterbricht, gibt der Positions-Auswertungs-Baustein der diesem Signalgeber zugeordneten Identifizierungs- und Positionierungs-Baugruppe ein entsprechendes Signal an den Prozeßrechner und der beschriebene Vorgang wiederholt sich.When the marking plate 10 has reached the next signal transmitter with the outer edge of one of its position markings 18, 19 and interrupts one of the positioning light barriers, the position evaluation module of the identification and positioning module assigned to this signal transmitter sends a corresponding signal to the process computer and the process described is repeated.

Wie bereits ausgeführt, ist es zweckmäßig, eine der Positionsmarken in Bewegungsrichtung justierbar auf dem Tragkörper 17 anzuordnen. Gemäß Fig. 2 ist dazu die Positionsmarkierung 18 mit einem Langloch versehen. Mit Hilfe dieser Justierung besteht die Möglichkeit, die Ansprechempfindlichkeit und Toleranz der Positionsmarkierungen auf den gewünschten Wert einzustellen und damit auch die Hysterese, d. h. die Abweichung der Sollposition in Abhängigkeit von der Fahrtrichtung zu optimieren, d. h. den günstigsten Wert in Abhängigkeit von den verschiedenen Parametern der Bedienungsmaschine zu wählen.As already stated, it is expedient to arrange one of the position marks adjustable on the support body 17 in the direction of movement. 2, the position marker 18 is provided with an elongated hole. With the help of this adjustment, it is possible to set the sensitivity and tolerance of the position markers to the desired value and thus also the hysteresis, i. H. to optimize the deviation of the target position depending on the direction of travel, d. H. to choose the most favorable value depending on the various parameters of the operating machine.

Claims (4)

1. An arrangement for positioning coke oven machines comprising oven-operating machines moved on a track extending on both sides of a coke oven, and signal transmitter/signal receivers which serve as a part of a control device for driving of the operating machines and are arranged on the operating machines and on both sides of the oven chambers of the coke oven such that there is a standstill at predeterminable stopping points, characterised in that infrared light sensors (13, 14, 16, 27, 34) are used as signal receivers, and infrared light sources (11, 12, 15, 24, 31) are used as signal transmitters, arranged mutually opposed in the flanks of a U-shaped signal transmitter unit (9) at a distance, so that they form light barriers, into which is inserted a signal plate (10) on which markings (18, 19, 21) impermeable to infrared light are arranged in an array corresponding to that of the light barriers, where the light barriers are assigned to the coke oven and the signal plate to the operating machines, or vice versa, such that the position markings (18, 19) supported on the carrier body (17) of the signal plate (10) are within the cross-section of one of the two position light barriers (11, 13 or 12, 14) with their outer edges outwardly protruding in the direction of movement in the positioned state, so that the assigned markings (18, 19) cover at least a part of the respective beam to be impermeable to radiation, and that the identification markings (21) interrupt the assigned identification light barriers (15, 16) in the positioned state, where the identification markings are selected such that each stopping point corresponds to a specific characteristic signal code, and that the infrared light sensors (13, 14, 16, 27, 34) are connected to an analysing electronics unit (4) which comprises a read-only memory (38) having a read-only monitoring electronics unit (41) for recognising and assigning the coded identification markings and a position analysing electronics unit (40) which controls the driving means of the respective operating machine such that when a first pulse occurs due to an interruption of one of the two positioning light barriers (11,13 or 12,14) the number of revolutions of the respective driving means is reduced (crawling speed) and following the simultaneous occurrence of the pulses of the two positioning light barriers (11, 13 and 12, 14) and of the identification code assigned to the respective position the driving means is stopped, and in the case of a non-match the reduction of the number of revolutions is cancelled.
2. An arrangement as claimed in claim 1, characterised in that the identification markings (21) between the two position markings (18, 19) are fixed on the carrier body (17) of the signal plate (10) such that they protrude outwardly over the upper edge of said carrier body.
3. An arrangement as claimed in claim 1 or 2, characterised in that at least one of the two position markings (18) can be adjusted in the direction of movement for precision and tolerance adjustment.
4. An arrangement as claimed in one of the preceding claims, characterised in that the read-only monitoring electronics unit (41) constantly monitors the identification light barriers (11, 13 and 12, 14) during runs between the stopping points until one of the positioning light barriers (11, 13 and 12,14) has reached the front edge of a position marking (18, 19).
EP84113640A 1984-01-26 1984-11-12 System for the positioning of coke oven machines Expired - Lifetime EP0150289B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113640T ATE26995T1 (en) 1984-01-26 1984-11-12 ARRANGEMENT FOR FINE POSITIONING OF COKING OIL MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3402690 1984-01-26
DE19843402690 DE3402690A1 (en) 1984-01-26 1984-01-26 ARRANGEMENT FOR THE FINE POSITIONING OF COOKING MACHINES

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EP0150289A2 EP0150289A2 (en) 1985-08-07
EP0150289A3 EP0150289A3 (en) 1985-09-04
EP0150289B1 true EP0150289B1 (en) 1987-05-06
EP0150289B2 EP0150289B2 (en) 1999-07-14

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US (1) US4557805A (en)
EP (1) EP0150289B2 (en)
AT (1) ATE26995T1 (en)
CA (1) CA1233542A (en)
DE (2) DE3402690A1 (en)

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DE102008011552B4 (en) * 2008-02-28 2012-08-30 Thyssenkrupp Uhde Gmbh Method and device for positioning control units of a coal filling car at filling openings of a coke oven
DE102010004367A1 (en) * 2010-01-12 2011-07-14 Flsmidth A/S Oven control unit for a coking battery of a coking plant
CN101851519B (en) * 2010-06-01 2013-06-19 大连华锐重工集团股份有限公司 Coke oven mechanical heat number identification and detection device
CN102559216A (en) * 2011-12-31 2012-07-11 山西沁新能源集团股份有限公司 Three-trolley automatic alignment system matched with clean heat recovery coke oven
CN102980473B (en) * 2012-12-05 2015-11-04 大连华锐重工集团股份有限公司 A kind of High-precision position detection device and localization method thereof
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Also Published As

Publication number Publication date
EP0150289B2 (en) 1999-07-14
EP0150289A2 (en) 1985-08-07
DE3402690A1 (en) 1985-08-01
ATE26995T1 (en) 1987-05-15
DE3463524D1 (en) 1987-06-11
US4557805A (en) 1985-12-10
EP0150289A3 (en) 1985-09-04
CA1233542A (en) 1988-03-01

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