EP2841530B1 - Apparatus for cleaning the doors of coking ovens - Google Patents

Apparatus for cleaning the doors of coking ovens Download PDF

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Publication number
EP2841530B1
EP2841530B1 EP13709744.0A EP13709744A EP2841530B1 EP 2841530 B1 EP2841530 B1 EP 2841530B1 EP 13709744 A EP13709744 A EP 13709744A EP 2841530 B1 EP2841530 B1 EP 2841530B1
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EP
European Patent Office
Prior art keywords
cleaning
cleaning jet
jet
devices
coking
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.)
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EP13709744.0A
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German (de)
French (fr)
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EP2841530A1 (en
Inventor
Franz Steiner
Markus Schäfer
Stefan Schneider
Norbert Fiedler
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.)
Paul Wurth SA
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Paul Wurth SA
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Publication date
Application filed by Paul Wurth SA filed Critical Paul Wurth SA
Priority to RS20191667A priority Critical patent/RS59746B1/en
Priority to PL13709744T priority patent/PL2841530T3/en
Publication of EP2841530A1 publication Critical patent/EP2841530A1/en
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Publication of EP2841530B1 publication Critical patent/EP2841530B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/003—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods using material which dissolves or changes phase after the treatment, e.g. ice, CO2
    • 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
    • C10B43/00—Preventing or removing incrustations
    • C10B43/02—Removing incrustations
    • C10B43/04—Removing incrustations by mechanical means
    • 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
    • C10B43/00—Preventing or removing incrustations
    • C10B43/02—Removing incrustations
    • C10B43/04—Removing incrustations by mechanical means
    • C10B43/06—Removing incrustations by mechanical means from conduits, valves or the like

Definitions

  • the invention relates to a coking plant with devices for cyclically cleaning the doors of coking ovens, wherein the means for generating a deposit of the oven door deposits solving, solid particles having cleaning jet are provided and having means for controlled or controlled variation of parameters of the cleaning jet.
  • doors of coke ovens are subject to heavy pollution. These relate above all tar deposits, which can significantly affect the sealing of the oven chamber through the oven door. In particular, to avoid emissions, therefore, the doors of coking ovens must be cleaned cyclically.
  • This cleaning is done conventionally by mechanical scratches or by high pressure water jet.
  • unavoidably tar-containing aerosol particles spread in a wide environmental range during effective high-pressure cleaning.
  • the DE 102 15 216 A1 describes a method for machine removal of graphite deposits on a wall section in filling holes of coke oven chambers.
  • a cleaning jet used contains C02 ice grains as solid particles.
  • the FR 2 285 961 A1 describes a sandblasting process.
  • a coking plant of the type mentioned with a cleaning device goes out DD 34 918 A out.
  • Coke breeze particles are used as solid particles of a cleaning jet for cleaning coke oven doors.
  • the invention has for its object to perform the cyclic cleaning of the doors of coking ovens at least the same efficiency environment-friendly than the prior art.
  • a structural unit generating the cleaning jet can be moved on a door surface to be cleaned in the longitudinal and transverse direction of the door surface while varying the impact position of the cleaning jet and for the fan-shaped widening of the cleaning jet in the transverse direction.
  • Solid particles can prevent aerosol formation and thus the spread of tar-loaded particles from the cleaning site into the environment.
  • the cleaning jet is formed exclusively by solid particles and optionally further comprises only a transport gas conveying the particles.
  • the particles of the cleaning jet to dry ice are in particular formed exclusively by dry ice. Due to the dry ice, there is occasional excessive cooling and embrittlement on the tar deposits, which favors the spalling of tar particles upon impact of the solid dry ice particles.
  • a cleaning jet of dry ice particles therefore, not only can advantageously prevent aerosol formation and propagation, but also significantly increase the cleaning efficiency.
  • a particular advantage of cleaning by dry ice particles is also in a gentle treatment of the door surface, u.a. as a result of rapid sublimation.
  • the means for generating the cleaning jet further comprise means for varying parameters of the cleaning jet.
  • Changeable may be in addition to the current, e.g. Size and velocity of the solid jet particles and thus their impact energy.
  • the temperature of the dry ice particles may also be considered as a variable parameter.
  • said devices are provided for varying the parameters for controlled or regulated variation.
  • a parameter to be controlled in particular the position and / or cross-sectional shape of the cleaning jet into consideration. Accordingly, the cleaning jet is automatically guided over the preferably arranged separately from the coking oven in a cleaning position door.
  • the devices for the controlled variation of the parameters can have a sensor that detects the degree of cleaning achieved, eg an optical sensor.
  • the guidance and changes in the cleaning jet then depend on the detected cleaning effect, it being possible, if soiled heavily, to accelerate the cleaning effect, the particle flow strength, the particle velocity and / or the particle size can be changed.
  • a schematic in Fig. 1 shown apparatus for cyclically cleaning the doors of coke ovens comprises a support means 1 for receiving a purpose of cleaning a coking oven (not shown) dismantled furnace door 2.
  • the elongated furnace door 2 is in the embodiment shown horizontally on the support means 1, wherein the furnace inside facing side of the door 2 facing upward.
  • a unit 3 is arranged, which generates a directed onto the door 2 cleaning jet 4, according to Fig. 1 emerges obliquely to the door surface from a nozzle 5.
  • the assembly 3 is according to arrow 6 and perpendicular to the direction of the arrow by a moving device 7 parallel to the door surface movable.
  • An optical sensor 8 connected to the assembly 3 captures the image in Fig. 2 visible impact surface 10 of the cleaning jet 4 on the surface of the oven door 2.
  • the cleaning jet 4 generated by the unit 3 has solid particles.
  • these are exclusively dry ice particles that are transported by a transport gas.
  • Means for producing such a dry ice particle beam are commercially available and need not be described in detail here.
  • a programmable control device 9 controls the position of the cleaning jet 4, in particular the position of the impact surface 10 on the door 2, via the movement device 7 connected to the structural unit 3.
  • the control device 8 further acts on the structural unit 3 generating the cleaning jet 4 Change cross section of the cleaning jet.
  • the cleaning jet can be varied by more or less strong fanning in its width.
  • the adjustment of position and cross-sectional shape of the cleaning jet 4 is controlled by the signals of the optical sensor 8, from which the control device 9 determined by image evaluation the degree of purification achieved.
  • the cleaning intensity can be varied in a constant position of the unit 3, characterized in that the cleaning jet 4 is fanned more or less far, which can be done depending on the degree of contamination only when reaching a predetermined degree of purification ,
  • the speed of the particles, the particle size and the particle current vary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Coke Industry (AREA)

Description

Die Erfindung betrifft eine Verkokungsanlage mit Einrichtungen zur zyklischen Reinigung der Türen von Verkokungsöfen, wobei die Einrichtungen zur Erzeugung eines von der Ofentür Ablagerungen lösenden, feste Partikel aufweisenden Reinigungsstrahls vorgesehen sind und Einrichtungen zur geregelten oder gesteuerten Variation von Parametern des Reinigungsstrahls aufweisen.The invention relates to a coking plant with devices for cyclically cleaning the doors of coking ovens, wherein the means for generating a deposit of the oven door deposits solving, solid particles having cleaning jet are provided and having means for controlled or controlled variation of parameters of the cleaning jet.

Bekanntermaßen unterliegen Türen von Verkokungsöfen starker Verschmutzung. Diese betreffen vor allem Teerablagerungen, welche die Abdichtung der Ofenkammer durch die Ofentür merklich beeinträchtigen können. Insbesondere zur Vermeidung von Emissionen sind daher die Türen von Verkokungsöfen zyklisch zu reinigen.As is known, doors of coke ovens are subject to heavy pollution. These relate above all tar deposits, which can significantly affect the sealing of the oven chamber through the oven door. In particular, to avoid emissions, therefore, the doors of coking ovens must be cleaned cyclically.

Diese Reinigung erfolgt herkömmlich durch mechanische Kratzer oder mittels Wasserhochdruckstrahl. Unter erheblicher Umweltbelastung breiten sich bei effektiver Hochdruckreinigung unvermeidbar Teer aufweisende Aerosolpartikel in einen weiten Umgebungsbereich aus.This cleaning is done conventionally by mechanical scratches or by high pressure water jet. Under severe environmental pollution, unavoidably tar-containing aerosol particles spread in a wide environmental range during effective high-pressure cleaning.

Die DE 102 15 216 A1 beschreibt ein Verfahren zum maschinellen Entfernen von Grafitansätzen an einem Wandabschnitt in Fülllöchern von Koksofenkammern. Ein verwendeter Reinigungsstrahl enthält als feste Partikel C02-Eiskörner.
Ein weiteres Reinigungsverfahren, bei dem ein Trockeneis enthaltender Reinigungsstrahl zum Einsatz kommt, geht aus WO 02/072312 hervor. Die FR 2 285 961 A1 beschreibt ein Sandstrahlverfahren.
Eine Verkokungsanlage der eingangs erwähnten Art mit einer Reinigungsvorrichtung geht aus DD 34 918 A hervor. Als feste Partikel eines Reinigungsstrahls zum Reinigen von Koksofentüren werden Koksgrusteilchen eingesetzt.The DE 102 15 216 A1 describes a method for machine removal of graphite deposits on a wall section in filling holes of coke oven chambers. A cleaning jet used contains C02 ice grains as solid particles.
Another cleaning method, which uses a cleaning jet containing dry ice, goes out WO 02/072312 out. The FR 2 285 961 A1 describes a sandblasting process.
A coking plant of the type mentioned with a cleaning device goes out DD 34 918 A out. Coke breeze particles are used as solid particles of a cleaning jet for cleaning coke oven doors.

Der Erfindung liegt die Aufgabe zugrunde, die zyklische Reinigung der Türen von Verkokungsöfen bei mindestens gleichbleibender Effizienz umweltschonender als nach dem Stand der Technik durchzuführen.The invention has for its object to perform the cyclic cleaning of the doors of coking ovens at least the same efficiency environment-friendly than the prior art.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass eine den Reinigungsstrahl erzeugende Baueinheit unter Variation der Aufprallposition des Reinigungsstrahls auf einer zu reinigenden Türoberfläche in Längs- und Querrichtung der Türoberfläche verfahrbar und zur fächerartigen Aufweitung des Reinigungsstrahls in der Querrichtung ausgebildet ist.This object is achieved according to the invention in that a structural unit generating the cleaning jet can be moved on a door surface to be cleaned in the longitudinal and transverse direction of the door surface while varying the impact position of the cleaning jet and for the fan-shaped widening of the cleaning jet in the transverse direction.

Durch feste Partikel lässt sich eine Aerosolbildung und damit die Ausbreitung teerbelasteter Partikel vom Reinigungsort in die Umgebung verhindern.Solid particles can prevent aerosol formation and thus the spread of tar-loaded particles from the cleaning site into the environment.

Vorzugsweise ist der Reinigungsstrahl ausschließlich durch feste Partikel gebildet und umfasst ggf. darüber hinaus lediglich ein die Partikel beförderndes Transportgas.Preferably, the cleaning jet is formed exclusively by solid particles and optionally further comprises only a transport gas conveying the particles.

In einer besonders bevorzugten Ausführungsform der Erfindung weisen die Partikel des Reinigungsstrahls Trockeneis auf und sind insbesondere ausschließlich durch Trockeneis gebildet. Durch das Trockeneis kommt es an den Teerablagerungen punktuell zu starker Abkühlung und Versprödung, was ein Abplatzen von Teerteilchen beim Aufprall der festen Trockeneispartikel begünstigt. Durch einen Reinigungsstrahl aus Trockeneispartikeln lässt sich daher also nicht nur vorteilhaft eine Aerosolbildung und -ausbreitung verhindern, sondern auch die Reinigungseffizienz merklich erhöhen. Ein besonderer Vorteil der Reinigung durch Trockeneispartikel besteht ferner in einer schonenden Behandlung der Türoberfläche, u.a. infolge schneller Sublimation.In a particularly preferred embodiment of the invention, the particles of the cleaning jet to dry ice and are in particular formed exclusively by dry ice. Due to the dry ice, there is occasional excessive cooling and embrittlement on the tar deposits, which favors the spalling of tar particles upon impact of the solid dry ice particles. By a cleaning jet of dry ice particles, therefore, not only can advantageously prevent aerosol formation and propagation, but also significantly increase the cleaning efficiency. A particular advantage of cleaning by dry ice particles is also in a gentle treatment of the door surface, u.a. as a result of rapid sublimation.

Erfindungsgemäß weisen die Einrichtungen zur Erzeugung des Reinigungsstrahls ferner Einrichtungen zur Variation von Parametern des Reinigungsstrahls auf. Veränderbar können neben der Stromstärke z.B. Größe und Geschwindigkeit der festen Strahlpartikel und damit deren Aufprallenergie sein. Als veränderbarer Parameter kommt insbesondere auch die Temperatur der Trockeneispartikel in Betracht.According to the invention, the means for generating the cleaning jet further comprise means for varying parameters of the cleaning jet. Changeable may be in addition to the current, e.g. Size and velocity of the solid jet particles and thus their impact energy. In particular, the temperature of the dry ice particles may also be considered as a variable parameter.

Erfindungsgemäß sind die genannten Einrichtungen zur Variation der Parameter zur gesteuerten oder geregelten Variation vorgesehen. Als zu regelnde Parameter kommen insbesondere die Position und/oder Querschnittsform des Reinigungsstrahls in Betracht. Entsprechend wird der Reinigungsstrahl automatisch über die vorzugsweise getrennt vom Verkokungsofen in einer Reinigungsposition angeordnete Tür geführt.According to the invention, said devices are provided for varying the parameters for controlled or regulated variation. As a parameter to be controlled in particular the position and / or cross-sectional shape of the cleaning jet into consideration. Accordingly, the cleaning jet is automatically guided over the preferably arranged separately from the coking oven in a cleaning position door.

Insbesondere können die Einrichtungen zur geregelten Variation der Parameter einen den erreichten Reinigungsgrad erfassenden Sensor aufweisen, z.B. optischen Sensor. Die Führung sowie Veränderungen des Reinigungsstrahls richten sich dann nach dem detektierten Reinigungseffekt, wobei ggf., bei starker Verschmutzung, zur Beschleunigung der Reinigungswirkung die Partikelstromstärke, die Partikelgeschwindigkeit oder/und die Partikelgröße verändert werden können.In particular, the devices for the controlled variation of the parameters can have a sensor that detects the degree of cleaning achieved, eg an optical sensor. The guidance and changes in the cleaning jet then depend on the detected cleaning effect, it being possible, if soiled heavily, to accelerate the cleaning effect, the particle flow strength, the particle velocity and / or the particle size can be changed.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und der beiliegenden, sich auf dieses Ausführungsbeispiel beziehenden Zeichnungen weiter erläutert. Es zeigen:

Fig. 1
eine Vorrichtung nach der Erfindung in schematischer Darstellung, und
Fig. 2
eine Aufprallfläche eines Reinigungsstrahls der Vorrichtung von Fig. 1 auf einer zu reinigenden Ofentür.
The invention will be explained below with reference to an embodiment and the accompanying, referring to this embodiment drawings. Show it:
Fig. 1
a device according to the invention in a schematic representation, and
Fig. 2
an impact surface of a cleaning jet of the device of Fig. 1 on a furnace door to be cleaned.

Eine schematisch in Fig. 1 dargestellte Vorrichtung zur zyklischen Reinigung der Türen von Verkokungsöfen umfasst eine Trägereinrichtung 1 für die Aufnahme einer zwecks Reinigung von einem Verkokungsofen (nicht gezeigt) demontierten Ofentür 2. Die längliche Ofentür 2 liegt in dem gezeigten Ausführungsbeispiel horizontal auf der Trägereinrichtung 1 auf, wobei die der Ofeninnenseite zugewandte Seite der Tür 2 nach oben weist.A schematic in Fig. 1 shown apparatus for cyclically cleaning the doors of coke ovens comprises a support means 1 for receiving a purpose of cleaning a coking oven (not shown) dismantled furnace door 2. The elongated furnace door 2 is in the embodiment shown horizontally on the support means 1, wherein the furnace inside facing side of the door 2 facing upward.

Oberhalb der Tür 2 ist eine Baueinheit 3 angeordnet, welche einen auf die Tür 2 gerichteten Reinigungsstrahl 4 erzeugt, der gemäß Fig. 1 schräg zur Türoberfläche aus einer Düse 5 austritt.Above the door 2, a unit 3 is arranged, which generates a directed onto the door 2 cleaning jet 4, according to Fig. 1 emerges obliquely to the door surface from a nozzle 5.

Die Baueinheit 3 ist gemäß Pfeil 6 sowie senkrecht zur Pfeilrichtung durch eine Bewegungseinrichtung 7 parallel zur Türoberfläche verfahrbar.The assembly 3 is according to arrow 6 and perpendicular to the direction of the arrow by a moving device 7 parallel to the door surface movable.

Ein mit der Baueinheit 3 verbundener optischer Sensor 8 erfasst bildlich die in Fig. 2 sichtbare Aufprallfläche 10 des Reinigungsstrahls 4 auf der Oberfläche der Ofentür 2.An optical sensor 8 connected to the assembly 3 captures the image in Fig. 2 visible impact surface 10 of the cleaning jet 4 on the surface of the oven door 2.

Der durch die Baueinheit 3 erzeugte Reinigungsstrahl 4 weist feste Partikel auf. In dem gezeigten Beispiel handelt es sich ausschließlich um Trockeneispartikel, die durch ein Transportgas befördert werden. Einrichtungen zur Erzeugung eines solchen Trockeneispartikelstrahls sind handelsüblich und brauchen hier nicht näher beschrieben zu werden.The cleaning jet 4 generated by the unit 3 has solid particles. In the example shown, these are exclusively dry ice particles that are transported by a transport gas. Means for producing such a dry ice particle beam are commercially available and need not be described in detail here.

Eine programmierbare Steuereinrichtung 9 steuert über die mit der Baueinheit 3 verbundene Bewegungseinrichtung 7 die Position des Reinigungsstrahls 4, insbesondere die Position der Aufprallfläche 10 auf der Tür 2. Die Steuereinrichtung 8 wirkt ferner auf die den Reinigungsstrahl 4 erzeugende Baueinheit 3 ein, um den Querschnitt des Reinigungsstrahls zu verändern. Wie Fig. 2 zeigt, lässt sich der Reinigungsstrahl durch mehr oder weniger starke Auffächerung in seiner Breite variieren.A programmable control device 9 controls the position of the cleaning jet 4, in particular the position of the impact surface 10 on the door 2, via the movement device 7 connected to the structural unit 3. The control device 8 further acts on the structural unit 3 generating the cleaning jet 4 Change cross section of the cleaning jet. As Fig. 2 shows, the cleaning jet can be varied by more or less strong fanning in its width.

Die Verstellung von Position und Querschnittsform des Reinigungsstrahls 4 erfolgt geregelt anhand der Signale des optischen Sensors 8, aus denen die Steuereinrichtung 9 durch Bildauswertung den jeweils erreichten Reinigungsgrad ermittelt. Erst bei Erreichen eines vorgegebenen Reinigungsgrades erfolgt ein weiterer Vorschub des Reinigungsstrahls 4 bzw. von dessen Aufprallfläche 10. Die Reinigungsintensität lässt sich bei konstanter Position der Baueinheit 3 dadurch variieren, dass der Reinigungsstrahl 4 mehr oder weniger weit aufgefächert wird, was abhängig vom Verschmutzungsgrad erfolgen kann.The adjustment of position and cross-sectional shape of the cleaning jet 4 is controlled by the signals of the optical sensor 8, from which the control device 9 determined by image evaluation the degree of purification achieved. The cleaning intensity can be varied in a constant position of the unit 3, characterized in that the cleaning jet 4 is fanned more or less far, which can be done depending on the degree of contamination only when reaching a predetermined degree of purification ,

Wie bereits erwähnt, ließe sich neben den bereits erwähnten Parametern z.B. auch die Geschwindigkeit der Partikel, die Partikelgröße sowie die Partikelstromstärke variieren.As already mentioned, in addition to the parameters already mentioned, e.g. Also, the speed of the particles, the particle size and the particle current vary.

Claims (4)

  1. A coking plant having devices for cyclically cleaning the doors (2) of coking ovens, the devices being provided for producing a cleaning jet (4) which includes solid particles and detaches deposits from the oven door (2) and furthermore having devices for open- or closed-loop-controlled variation of cleaning jet (4) parameters, characterised in that
    a structural unit (3) which produces the cleaning jet (4) is displaceable in the longitudinal and transverse directions of the door surface with variation of the position of impact of the cleaning jet on a door surface to be cleaned and is configured to fan out the cleaning jet (4) in the transverse direction.
  2. A coking plant according to claim 1, characterised in that
    the cleaning jet (4) is formed exclusively by solid particles and optionally a transport gas which conveys the solid particles.
  3. A coking plant according to claim 2, characterised in that
    the particles include dry ice and in particular are exclusively formed by dry ice.
  4. A coking plant according to one of claims 1 to 3, characterised in that
    the devices for closed-loop-controlled variation of the parameters have a sensor (8), for example an optical sensor, which detects the achieved degree of cleaning.
EP13709744.0A 2012-04-23 2013-02-12 Apparatus for cleaning the doors of coking ovens Active EP2841530B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RS20191667A RS59746B1 (en) 2012-04-23 2013-02-12 Apparatus for cleaning the doors of coking ovens
PL13709744T PL2841530T3 (en) 2012-04-23 2013-02-12 Apparatus for cleaning the doors of coking ovens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012103539A DE102012103539A1 (en) 2012-04-23 2012-04-23 Device for cleaning the doors of coking plants
PCT/DE2013/100050 WO2013159766A1 (en) 2012-04-23 2013-02-12 Apparatus for cleaning the doors of coking ovens

Publications (2)

Publication Number Publication Date
EP2841530A1 EP2841530A1 (en) 2015-03-04
EP2841530B1 true EP2841530B1 (en) 2019-10-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709744.0A Active EP2841530B1 (en) 2012-04-23 2013-02-12 Apparatus for cleaning the doors of coking ovens

Country Status (8)

Country Link
EP (1) EP2841530B1 (en)
DE (1) DE102012103539A1 (en)
ES (1) ES2763322T3 (en)
HU (1) HUE046889T2 (en)
PL (1) PL2841530T3 (en)
RS (1) RS59746B1 (en)
RU (1) RU2638986C2 (en)
WO (1) WO2013159766A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34918A3 (en) * 1962-03-19 1965-01-05 Hans Schönfelder Method for cleaning sealing surfaces on coconut stoves, in particular the door frames, doors, filling and leveling openings
NO152778C (en) * 1974-09-27 1985-11-20 Lockheed Aircraft Corp PROCEDURE AND DEVICE FOR SAND BLASTING WITH PARTICLES OF SUBLIMABLE MATERIAL.
DE10111235A1 (en) * 2001-03-08 2002-09-19 Linde Ag Process for blasting treatment with blasting media
DE10215216A1 (en) * 2002-04-06 2003-11-20 Rag Ag Removal of graphite residues from the inner face of a coke oven near the bunkering inlet involves using high pressure carbon dioxide ice grains delivered by moving lance
DE102005051504A1 (en) * 2005-09-20 2007-03-29 Schalker Eisenhütte Maschinenfabrik Gmbh Cleaning device for cleaning oven doors of a coking chamber of a coke oven
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2013159766A1 (en) 2013-10-31
RS59746B1 (en) 2020-02-28
DE102012103539A1 (en) 2013-10-24
PL2841530T3 (en) 2020-05-18
HUE046889T2 (en) 2020-03-30
EP2841530A1 (en) 2015-03-04
ES2763322T3 (en) 2020-05-28
RU2638986C2 (en) 2017-12-19
RU2014146986A (en) 2016-06-10

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