EP0959301A2 - Device preventing clogging by large pieces of material at the discharge end of grates - Google Patents

Device preventing clogging by large pieces of material at the discharge end of grates Download PDF

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Publication number
EP0959301A2
EP0959301A2 EP99107958A EP99107958A EP0959301A2 EP 0959301 A2 EP0959301 A2 EP 0959301A2 EP 99107958 A EP99107958 A EP 99107958A EP 99107958 A EP99107958 A EP 99107958A EP 0959301 A2 EP0959301 A2 EP 0959301A2
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EP
European Patent Office
Prior art keywords
roller crusher
large pieces
discharge
roller
crusher
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Withdrawn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
EP99107958A
Other languages
German (de)
French (fr)
Other versions
EP0959301A3 (en
Inventor
Werner Krokor
Peter Schatz
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.)
ThyssenKrupp Foerdertechnik GmbH
Original Assignee
Krupp Foerdertechnik GmbH
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 Krupp Foerdertechnik GmbH filed Critical Krupp Foerdertechnik GmbH
Publication of EP0959301A2 publication Critical patent/EP0959301A2/en
Publication of EP0959301A3 publication Critical patent/EP0959301A3/en
Withdrawn legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01003—Ash crushing means associated with ash removal means

Definitions

  • the invention relates to a device for prevention the formation of blockages at the discharge of rust or Churning through large pieces of material, for example through large pieces of slag residues, especially on Ejection of sieve grates at an incinerator for lignite combustion.
  • the invention has for its object a device to create through which the aforementioned Difficulties will be eliminated.
  • the task is solved by a Device of the type mentioned in that under the discharge of the grate or the chute of an incinerator one by at least one 2-roller crusher formed shredding device is arranged.
  • This 2-roller crusher will fit exactly below the Sieve overflow used.
  • the crushing rollers are the 2-roller crusher overhung, the bearing on the side of the device facing away from the grate are located.
  • the bearings of the 2-roller crusher and the entire drive is therefore outside the warm range.
  • the device according to the invention can thereby be improved that the crushing area of the crushing rollers through at least one cooling water chamber to the storage area the 2-roller crusher is sealed.
  • the cooling water chamber forms another thermal protection for the Storage of the 2-roller crusher and their drive.
  • Another improvement of the device according to the invention is that above each 2-roller crusher several needle slides are provided. Means this needle pusher becomes the one during execution discharge of the combustion device open from maintenance work protected. For this it is only necessary to push the needle pusher over the discharge To push the combustion device.
  • the device shown in the drawing consists in essentially consisting of 2-roller crushers arranged side by side 1 with the associated drive 2, the 2-roller crusher 1 under the dropping of a - by dashed lines indicated - rust R arranged are.
  • the section shown in FIG The device shows two - of several - 2-roller crushers 1.
  • the left side of FIG. 2 shows a 2-roller crusher 1 in the area of the crushing rollers 3 and the right side of FIG. 2 a 2-roller crusher 1 in the area of the drive 2.
  • the crushing rollers 3 stored on the fly.
  • the camp 4 are on the Rust (R) side facing away from the outside Warm area.
  • a cooling water chamber 5 is provided between the crushing rollers 3 and the bearings 4, a cooling water chamber 5 is provided.
  • the 2-roller crusher 1 are in a manner not shown slidably arranged.
  • the needle slide 6 Above the 2-roller crusher 1, several are side by side arranged needle slide 6 provided the the discharge 7 then open during the maintenance work protect. Here, the needle slide 6 are in the position shown in the drawing. Before start the operation of the device, the needle slide 6th in the position 6 'indicated by dashed lines pushed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Crushing And Grinding (AREA)

Abstract

The blockage prevention device comprises a grinder in the form of a two-roller crusher (2) fitted under the outlet or tip chute. There may be several crushers alongside each other. The crusher rollers (3) are taper bore mounted, so that the bearings (4) are in the side of the device facing the grating (R) or tip chute. Each crusher may be moved out of the crushing region.

Description

Die Erfindung betrifft eine Vorrichtung zur Verhinderung der Bildung von Verstopfungen am Abwurf von Rosten oder Schurren durch großstückige Materialteile, beispielsweise durch großstückige Schlackenreste, insbesondere am Abwurf von Siebrosten bei einer Verbrennungsanlage für die Braunkohleverbrennung.The invention relates to a device for prevention the formation of blockages at the discharge of rust or Churning through large pieces of material, for example through large pieces of slag residues, especially on Ejection of sieve grates at an incinerator for lignite combustion.

Bei der Verbrennung von Kohle, insbesondere von Braunkohle kommt es immer wieder unterhalb der Brennkammer, am Abwurf der Siebroste, zu Verstopfungen durch großstückige Schlackenreste. Ähnliche Probleme treten auch bei anderen Einrichtungen und bei anderen Einsatzfällen auf. Für die Zerkleinerung und die Entfernung der Schlackenreste werden Abbauhämmer eingesetzt, die wegen der in und unterhalb der Brennkammer herrschenden hohen Temperaturen mit Meißeln sehr großer Länge versehen werden, damit eine Bedienung der Abbauhämmer von außen möglich ist. Diese Art der Schlackenzerkleinerung ist sehr aufwendig und stellt eine hohe körperliche Belastung dar. Darüber hinaus sind die bei der bisher üblichen Schlackenzerkleinerung durchzuführenden Arbeiten sehr gefährlich, weil es zu Verpuffungen oder zur Bildung von Stichflammen kommen kann.When burning coal, especially lignite it always comes below the combustion chamber, at the discharge of the sieve grate, to blockages caused by large pieces Slag residues. Similar problems also arise in other facilities and in other applications on. For crushing and removing the Slag remnants are used breakdown hammers because of the high prevailing in and below the combustion chamber Provide temperatures with very long chisels so that the breakers can be operated from the outside is possible. This type of slag grinding is very complex and high physical Burden. In addition, those at the so far usual slag grinding work to be carried out very dangerous because of deflagration or Formation of flashlights can occur.

Im Falle der Verbrennung von Braunkohle kann die anfallende Schlacke noch bis zu 400°C heiß und im Kernbereich noch sehr zäh sein. Wegen dieser hohen Temperaturen und wegen der noch vorhandenen Zähigkeit bereitet in diesem Falle die Zerkleinerung großstückige Schlackenreste besonders große Schwierigkeiten.In the case of lignite combustion, the resulting slag still up to 400 ° C hot and in Core area still be very tough. Because of this high Temperatures and because of the remaining toughness in this case prepares the large pieces Slag residues are particularly difficult.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu schaffen, durch die die vorstehend erwähnten Schwierigkeiten beseitigt werden.The invention has for its object a device to create through which the aforementioned Difficulties will be eliminated.

Die Lösung der gestellten Aufgabe besteht bei einer Vorrichtung der eingangs erwähnten Art darin, daß unter dem Abwurf des Rostes oder der Schurre einer Verbrennungsanlage eine durch mindestens einen 2-Walzen-Brecher gebildete Zerkleinerungseinrichtung angeordnet ist. Dieser 2-Walzen-Brecher wird paßgenau unterhalb des Siebüberlaufs eingesetzt. Durch die Ausbildung der Zerkleinerungseinrichtung als 2-Walzen-Brecher lassen sich auch heiße und zähe Schlackenreste zerkleinern.The task is solved by a Device of the type mentioned in that under the discharge of the grate or the chute of an incinerator one by at least one 2-roller crusher formed shredding device is arranged. This 2-roller crusher will fit exactly below the Sieve overflow used. By training the Leave the shredding device as a 2-roller crusher hot and tough slag remnants are also crushed.

Zweckmäßigerweise sind mehrere 2-Walzen-Brecher nebeneinander angeordnet.It is advisable to have several 2-roller crushers next to each other arranged.

In Ausgestaltung der Erfindung sind die Brechwalzen der 2-Walzen-Brecher fliegend gelagert, wobei sich die Lager auf der dem Rost abgewandten Seite der Vorrichtung befinden. Die Lagerungen der 2-Walzen-Brecher und der gesamte Antrieb liegen somit außerhalb des Warmbereichs.In an embodiment of the invention, the crushing rollers are the 2-roller crusher overhung, the bearing on the side of the device facing away from the grate are located. The bearings of the 2-roller crusher and the entire drive is therefore outside the warm range.

In weiterer Ausgestaltung der Erfindung ist jeder 2-Walzen-Brecher derart verschiebbar ausgebildet, daß er aus dem Brechbereich herausgefahren werden kann. Dies ermöglicht im Falle notwendiger Wartungsarbeiten einen schnellen Zugang zu jedem 2-Walzen-Brecher.In a further embodiment of the invention, everyone is 2-roller crusher designed so that he can be moved out of the crushing area. This enables one in case of necessary maintenance quick access to any 2-roller crusher.

Die erfindungsgemäße Vorrichtung kann noch dadurch verbessert werden, daß der Brechbereich der Brechwalzen durch mindestens eine Kühlwasserkammer zum Lagerbereich der 2-Walzen-Brecher abgedichtet ist. Die Kühlwasserkammer bildet einen weiteren Wärmeschutz für die Lagerung der 2-Walzen-Brecher und deren Antrieb.The device according to the invention can thereby be improved that the crushing area of the crushing rollers through at least one cooling water chamber to the storage area the 2-roller crusher is sealed. The cooling water chamber forms another thermal protection for the Storage of the 2-roller crusher and their drive.

Ein weitere Verbesserung der erfindungsgemäßen Vorrichtung besteht darin, daß oberhalb jedes 2-Walzen-Brechers mehrere Nadelschieber vorgesehen sind. Mittels dieser Nadelschieber wird der während der Durchführung von Wartungsarbeiten offene Austrag der Verbrennungseinrichtung geschützt. Hierzu ist es lediglich notwendig, die Nadelschieber über den Austrag der Verbrennungseinrichtung zu schieben.Another improvement of the device according to the invention is that above each 2-roller crusher several needle slides are provided. Means this needle pusher becomes the one during execution discharge of the combustion device open from maintenance work protected. For this it is only necessary to push the needle pusher over the discharge To push the combustion device.

Die Erfindung ist anhand der Zeichnung, in der ein Ausführungsbeispiel eine erfindungsgemäßen Vorrichtung schematisch dargestellt ist, näher erläutert. Es zeigen:

Fig. 1
die Vorrichtung in einer Seitenansicht;
Fig. 2
einen Ausschnitt der Vorrichtung in Richtung des Pfeiles II in Fig. 1 gesehen, teilweise in Ansicht , teilweise im Querschnitt;
Fig. 3
eine Draufsicht auf die beiden Brechwalzen des 2-Walzen-Brechers.
The invention is explained in more detail with reference to the drawing, in which an embodiment of a device according to the invention is shown schematically. Show it:
Fig. 1
the device in a side view;
Fig. 2
a section of the device in the direction of arrow II seen in Figure 1, partially in view, partially in cross section.
Fig. 3
a plan view of the two crushing rollers of the 2-roller crusher.

Die in der Zeichnung dargestellte Vorrichtung besteht im wesentlichen aus nebeneinander angeordneten 2-Walzen-Brechern 1 mit dem zugehörigen Antrieb 2, wobei die 2-Walzen-Brecher 1 unter dem Abwurf eines - durch gestrichelte Linien angedeuteten - Rostes R angeordnet sind. Der in der Fig. 2 dargestellte Ausschnitt der Vorrichtung zeigt zwei - von mehreren - 2-Walzen-Brechern 1. Hierbei zeigt die linke Seite der Fig. 2 einen 2-Walzen-Brecher 1 im Bereich der Brechwalzen 3 und die rechte Seite der Fig. 2 einen 2-Walzen-Brecher 1 im Bereich des Antriebs 2.The device shown in the drawing consists in essentially consisting of 2-roller crushers arranged side by side 1 with the associated drive 2, the 2-roller crusher 1 under the dropping of a - by dashed lines indicated - rust R arranged are. The section shown in FIG The device shows two - of several - 2-roller crushers 1. The left side of FIG. 2 shows a 2-roller crusher 1 in the area of the crushing rollers 3 and the right side of FIG. 2 a 2-roller crusher 1 in the area of the drive 2.

Wie aus Fig. 1 zu ersehen ist, sind die Brechwalzen 3 fliegend gelagert. Die Lager 4 befinden sich auf der dem Rost (R) abgewandten Seite, also außerhalb des Warmbereichs. Zwischen den Brechwalzen 3 und den Lagern 4 ist eine Kühlwasserkammer 5 vorgesehen. Die 2-Walzen-Brecher 1 sind in nicht näher dargestellter Weise verschiebbar angeordnet.As can be seen from FIG. 1, the crushing rollers 3 stored on the fly. The camp 4 are on the Rust (R) side facing away from the outside Warm area. Between the crushing rollers 3 and the bearings 4, a cooling water chamber 5 is provided. The 2-roller crusher 1 are in a manner not shown slidably arranged.

Oberhalb der 2-Walzen-Brecher 1 sind mehrere nebeneinander angeordnete Nadelschieber 6 vorgesehen, die während der Wartungsarbeiten den dann offenen Austrag 7 schützen. Hierbei befinden sich die Nadelschieber 6 in der in der Zeichnung dargestellten Stellung. Vor Beginn des Betriebes der Vorrichtung werden die Nadelschieber 6 in die durch gestrichelte Linien angedeutete Stellung 6' geschoben.Above the 2-roller crusher 1, several are side by side arranged needle slide 6 provided the the discharge 7 then open during the maintenance work protect. Here, the needle slide 6 are in the position shown in the drawing. Before start the operation of the device, the needle slide 6th in the position 6 'indicated by dashed lines pushed.

Claims (6)

Vorrichtung zur Verhinderung der Bildung von Verstopfungen am Abwurf von Rosten oder Schurren durch großstückige Materialteile, beispielsweise durch großstückige Schlackenreste, insbesondere am Abwurf von Siebrosten bei einer Verbrennungsanlage für die Braunkohleverbrennung.
dadurch gekennzeichnet,
daß unter dem Abwurf des Rostes (R) oder der Schurre einer Verbrennungsanlage eine durch mindestens einen 2-Walzen-Brecher (1) gebildete Zerkleinerungseinrichtung angeordnet ist.Device for preventing the formation of blockages at the discharge of grates or chutes through large pieces of material, for example through large pieces of slag residues, in particular at the discharge of sieve grids in an incinerator for lignite combustion.
characterized,
that a chopping device formed by at least one 2-roller crusher (1) is arranged under the discharge of the grate (R) or the chute of an incineration plant. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere 2-Walzen-Brecher nebeneinander angeordnet sind.Device according to claim 1, characterized in that several 2-roller crushers arranged side by side are. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Brechwalzen (3) der 2-Walzen-Brecher (1) fliegend gelagert sind, wobei sich die Lager (4) auf der dem Rost (R) oder der Schurre abgewandten Seite der Vorrichtung befinden.Device according to claim 1 or 2, characterized in that that the crushing rollers (3) of the 2-roller crusher (1) are overhung, with the Bearing (4) on the grate (R) or chute facing away from the device. Vorrichtung nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß jeder 2-Walzen-Brecher (1) derart verschiebbar ausgebildet ist, daß er aus dem Brechbereich herausgefahren werden kann.Device according to claim 1, 2 or 3, characterized in that that each 2-roller crusher (1) such is designed to be displaceable that it is out of the crushing area can be pulled out. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Brechbereich der Brechwalzen (3) durch mindestens eine Kühlwasserkammer (5) zum Lagerbereich der 2-Walzen-Brecher (1) abgedichtet ist. Device according to one of claims 1 to 4, characterized in that the crushing area of the Crushing rollers (3) through at least one cooling water chamber (5) to the storage area of the 2-roller crusher (1) is sealed. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß oberhalb jedes 2-Walzen-Brechers 1 mehrere Nadelschieber 6 vorgesehen sind.Device according to one of claims 1 to 5, characterized in that above each 2-roller crusher 1 several needle slides 6 are provided.
EP99107958A 1998-05-20 1999-04-22 Device preventing clogging by large pieces of material at the discharge end of grates Withdrawn EP0959301A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29808963U 1998-05-20
DE29808963U DE29808963U1 (en) 1998-05-20 1998-05-20 Device for preventing the formation of blockages at the discharge of rust due to large pieces of material

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EP0959301A2 true EP0959301A2 (en) 1999-11-24
EP0959301A3 EP0959301A3 (en) 2000-02-23

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EP99107958A Withdrawn EP0959301A3 (en) 1998-05-20 1999-04-22 Device preventing clogging by large pieces of material at the discharge end of grates

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DE (1) DE29808963U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016106277A1 (en) * 2016-04-06 2017-10-12 Clyde Bergemann Drycon Gmbh Incinerator having at least one debris removal means

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883578A (en) * 1931-11-25 1932-10-18 Westinghouse Electric & Mfg Co Ash disposal apparatus
DE709265C (en) * 1932-03-17 1941-08-12 Josef Martin Purification device for boiler furnaces
DE709692C (en) * 1937-11-03 1941-08-23 Kohlenscheidungs Ges M B H Wet ash removal device, especially for grate firing
DE2809570A1 (en) * 1978-03-06 1979-09-20 Peters Ag Claudius SHREDDING PLANT FOR RUST COOLERS
JPS57120022A (en) * 1981-01-20 1982-07-26 Mitsui Eng & Shipbuild Co Ltd Moving fire grate type coal boiler
WO1994021381A1 (en) * 1993-03-19 1994-09-29 Claudius Peters Aktiengesellschaft Device for crushing and cooling a material leaving a burning oven
US5595350A (en) * 1993-06-21 1997-01-21 Fuller Company Comminution device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE486476C (en) 1930-03-12 Friedrich F Tippmann Discharge grate for shaft ovens consisting of eccentrically mounted rotatable crushing rollers
DE404190C (en) 1917-03-14 1924-10-14 Robert Sanford Riley Breaking and discharge device for the residue from underfeed firings
US2693775A (en) 1950-02-11 1954-11-09 Allen Sherman Hoff Co Ash handling apparatus
DE3041025C2 (en) 1980-10-31 1985-05-15 Günther 5628 Heiligenhaus Unger Method and device for the combustion of, in particular, ash-rich fuels

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883578A (en) * 1931-11-25 1932-10-18 Westinghouse Electric & Mfg Co Ash disposal apparatus
DE709265C (en) * 1932-03-17 1941-08-12 Josef Martin Purification device for boiler furnaces
DE709692C (en) * 1937-11-03 1941-08-23 Kohlenscheidungs Ges M B H Wet ash removal device, especially for grate firing
DE2809570A1 (en) * 1978-03-06 1979-09-20 Peters Ag Claudius SHREDDING PLANT FOR RUST COOLERS
JPS57120022A (en) * 1981-01-20 1982-07-26 Mitsui Eng & Shipbuild Co Ltd Moving fire grate type coal boiler
WO1994021381A1 (en) * 1993-03-19 1994-09-29 Claudius Peters Aktiengesellschaft Device for crushing and cooling a material leaving a burning oven
US5595350A (en) * 1993-06-21 1997-01-21 Fuller Company Comminution device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 213 (M-167), 26. Oktober 1982 (1982-10-26) & JP 57 120022 A (MITSUI ZOSEN KK), 26. Juli 1982 (1982-07-26) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016106277A1 (en) * 2016-04-06 2017-10-12 Clyde Bergemann Drycon Gmbh Incinerator having at least one debris removal means

Also Published As

Publication number Publication date
EP0959301A3 (en) 2000-02-23
DE29808963U1 (en) 1998-10-01

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