EP0943881B1 - Control process of the conveyance speed in a travelling grate cooler - Google Patents

Control process of the conveyance speed in a travelling grate cooler Download PDF

Info

Publication number
EP0943881B1
EP0943881B1 EP98104947A EP98104947A EP0943881B1 EP 0943881 B1 EP0943881 B1 EP 0943881B1 EP 98104947 A EP98104947 A EP 98104947A EP 98104947 A EP98104947 A EP 98104947A EP 0943881 B1 EP0943881 B1 EP 0943881B1
Authority
EP
European Patent Office
Prior art keywords
bed
flow resistance
height
cooled
conveying speed
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.)
Expired - Lifetime
Application number
EP98104947A
Other languages
German (de)
French (fr)
Other versions
EP0943881A1 (en
Inventor
Hartmut Dipl.-Ing. Meyer
Jürgen Dipl.-Ing. Cordes
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.)
Claudius Peters Technologies GmbH
Original Assignee
Claudius Peters Technologies 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8231609&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0943881(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Claudius Peters Technologies GmbH filed Critical Claudius Peters Technologies GmbH
Priority to EP98104947A priority Critical patent/EP0943881B1/en
Priority to DE59811795T priority patent/DE59811795D1/en
Priority to DK98104947T priority patent/DK0943881T3/en
Priority to AT98104947T priority patent/ATE273498T1/en
Priority to US09/271,681 priority patent/US6036483A/en
Priority to JP07379699A priority patent/JP4402760B2/en
Publication of EP0943881A1 publication Critical patent/EP0943881A1/en
Publication of EP0943881B1 publication Critical patent/EP0943881B1/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0213—Cooling with means to convey the charge comprising a cooling grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices

Definitions

  • grate coolers for fuel for example for cooling cement clinker
  • the effectiveness of grate coolers for fuel is of the uniformity of the Rust occupancy dependent on the refrigerated goods. Is the thickness of the Gutbetts unevenly, so it is from below through the grate driven cooling air mainly those areas of the material bed flow through a smaller thickness and consequently a have lower flow resistance.
  • the Layer height is determined, for example, by means of gamma radiation meters ("ZEMENT-LALK-GIPS" 1967, 152-156) or about the weight the grate occupancy (DE-A-195 41 455) determined. It is also proposed been the conveying speed of the cooling grate depending on the flow resistance in the initial area of the same to regulate (US-A-2 084 976; "CEMENT-LIME-GYPSUM” 1974, 559-564).
  • the invention improves the cooler operation in that the Conveying speed depends on both the height of the refrigerated goods bed as well as the flow resistance becomes.
  • Another advantage of the invention is that when The conveyor movement falls below a minimum clinker bed height the rust can be stopped. In the event of business interruptions is caused by the rust also in the initial area is covered with good. This prevents that hot goods when restarting on the unprotected grate falls, and the thermal load on the grate plates when restarting is reduced.
  • the invention leads to an equalization of the grate occupancy and a better economic use of cooling air due to the lower fluctuation in the temperature of the secondary air fed into the furnace.
  • the height of the refrigerated goods bed is the more important Influencing variable is. Therefore, it preferably gets stronger acted as the flow resistance. In practice, this can be achieved in that the Height of the refrigerated goods bed as a reference variable and the flow resistance used as a disturbance variable or correction variable becomes.
  • the current flow resistance not or not exclusively used immediately, but instead or additionally its first derivative or its deviation from Long-term value.
  • the flow resistance and / or its first derivative are therefore used as a correction variable based on the clinker bed height specified setpoint of the conveying speed, to influence the grain on the heat transfer compensate and an almost constant energy return in the oven and, if necessary, an equalization of the To allow heat exchange. If the pressure resistance in the Clinker, the target value of the clinker bed height is correctively increased, to improve heat exchange. If the Pressure resistance in the refrigerated goods bed becomes the setpoint for the bed height decreased to keep the heat exchange at a constant level to keep.
  • the flow resistance is also possible to consider the flow resistance as Use the reference variable and the layer height as a correction variable. Furthermore, the change in time can also occur in both cases the layer height can be included in the regulation.
  • the term rules means first Line in line with common terminology influencing the conveying speed in closed Control loop.
  • the interference is said to be more open Loop that is commonly referred to as taxes not be excluded.
  • the radiator for example, known radars are suitable.
  • the flow resistance in the initial area of the cooler results from the constant regulated used there Cooling air volume and the resulting differential pressure between the supplied air and the grate top space or (simplifying) from the counter pressure.
  • the conveying speed of a cooling grate's sliding grate Cement clinker is to be regulated so that a layer height of 600 mm, if there is a value of the flow resistance is measured, which corresponds to this layer height as normal was predetermined, for example 60 mbar. Is at this layer height a lower flow resistance measured, for example 50 mbar, the controller changes the Target value of the layer height to 650 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Paper (AREA)
  • Control Of Temperature (AREA)
  • Coke Industry (AREA)

Abstract

The grate speed is controlled dependent on the bed thickness of the material being cooled and the resistance to flow through the bed within an initial zone of the cooler.

Description

Die Wirksamkeit von Rostkühlern für Brenngut, beispielsweise zum Kühlen von Zementklinker, ist von der Gleichmäßigkeit der Rostbelegung durch das Kühlgut abhängig. Ist die Dicke des Gutbetts ungleichmäßig, so wird die von unten durch den Rost getriebene Kühlluft vorwiegend diejenigen Bereiche des Gutbetts durchströmen, die eine geringere Dicke und folglich einen geringeren Durchströmungswiderstand haben. Die Bereiche, in denen die Dicke des Kühlgutbetts größer ist, werden gegebenenfalls unzureichend gekühlt bzw. es muß ein größerer Kühlaufwand getrieben werden, um eine hinreichende Abkühlung selbst in den schwächer durchströmten Bereichen des Gutbetts zu erzielen. Da der Abwurf des zu kühlenden Brennguts aus dem vorgeschaltenen Ofen in den Anfangsbereich des Kühlers in der Regel nicht völlig gleichmäßig erfolgt, muß mit ungleichmäßiger Rostbelegung gerechnet werden.The effectiveness of grate coolers for fuel, for example for cooling cement clinker, is of the uniformity of the Rust occupancy dependent on the refrigerated goods. Is the thickness of the Gutbetts unevenly, so it is from below through the grate driven cooling air mainly those areas of the material bed flow through a smaller thickness and consequently a have lower flow resistance. The areas, in which the thickness of the refrigerated goods bed is greater, if necessary insufficiently cooled or a larger one must be used Cooling efforts are driven to ensure adequate cooling even in the areas of the estate bed with less flow to achieve. Since the dropping of the kiln to be cooled from the upstream furnace in the initial area of the cooler in the Usually not done completely evenly, must be done with uneven Rust occupancy can be expected.

Zur Vermeidung dieses Nachteils ist es bekannt, die Höhe der Kühlgutschicht im Anfangsabschnitt des Rosts zu messen und die Fördergeschwindigkeit des Rosts so zu regeln, daß eine möglichst gleichmäßige Schichthöhe erreicht wird. Die Schichthöhe wird beispielsweise mittels Gammastrahlungsmessern ("ZEMENT-KALK-GIPS" 1967, 152-156) oder über das Gewicht der Rostbelegung (DE-A-195 41 455) bestimmt. Ferner ist vorgeschlagen worden, die Fördergeschwindigkeit des Kühlrosts abhängig vom Durchströmungswiderstand im Anfangsbereich desselben zu regeln (US-A-2 084 976; "ZEMENT-KALK-GIPS" 1974, 559-564). In Perioden geringen Kühlgutanfalls, die bei konstanter Fördergeschwindigkeit zu Bereichen geringer Rostbelegung führen würden, wird die Fördergeschwindigkeit des Rosts verringert, in Perioden verstärkten Kühlgutanfalls verfährt man umgekehrt. Jedoch hat sich erwiesen, daß die auf diese Weise erzielbare Verbesserung sehr begrenzt ist. Das liegt daran, daß der Durchströmungswiderstand nicht nur von der Dicke des Kühlgutbetts abhängt, sondern auch von dessen Korngrößenverteilung, die gleichfalls mit Schwankungen des Ofenbetriebs unterschiedlich ausfallen kann. Je gröber das Klinkerkorn ist, um so geringer ist bei gleicher Höhe des Kühlgutbetts der Durchströmungswiderstand. Wenn beispielsweise grobe Ofenansatzbrocken anfallen, ist der gemessene Durchströmungswiderstand vergleichsweise gering, was bei durchströmungsabhängiger Regelung zu einer Verringerung der Fördergeschwindigkeit des Kühlrosts führt mit der Gefahr der Überfüllung des Rosts.To avoid this disadvantage, it is known the amount of To measure the refrigerated goods layer in the initial section of the grate and regulate the conveying speed of the grate so that a layer height which is as uniform as possible is achieved. The Layer height is determined, for example, by means of gamma radiation meters ("ZEMENT-LALK-GIPS" 1967, 152-156) or about the weight the grate occupancy (DE-A-195 41 455) determined. It is also proposed been the conveying speed of the cooling grate depending on the flow resistance in the initial area of the same to regulate (US-A-2 084 976; "CEMENT-LIME-GYPSUM" 1974, 559-564). In periods low volume of refrigerated goods at a constant conveying speed would lead to areas with little rust, the conveying speed of the grate is reduced, in Periods of increased chilled goods are reversed. However, it has been shown that the achievable in this way Improvement is very limited. This is because the Flow resistance not only from the thickness of the refrigerated goods bed depends, but also on its grain size distribution, which also varies with fluctuations in furnace operation can fail. The coarser the clinker grain, um the lower the flow resistance for the same height of the refrigerated goods bed. If, for example, coarse lumps of kiln is the measured flow resistance comparatively low, what with flow-dependent control to reduce the conveying speed of the Cooling grate leads to the risk of overfilling the grate.

Die Erfindung verbessert den Kühlerbetrieb dadurch, daß die Fördergeschwindigkeit abhängig sowohl von der Höhe des Kühlgutbetts als auch des Durchströmungswiderstands geregelt wird.The invention improves the cooler operation in that the Conveying speed depends on both the height of the refrigerated goods bed as well as the flow resistance becomes.

Durch den Einfluß der Höhe des Kühlgutbetts werden die Schwächen, die bei alleiniger Berücksichtigung des Durchströmungswiderstands unvermeidlich sind, reduziert. So wird in dem soeben genannten Beispiel des Anfalls grober Ofenansatzbrocken die Messung einer entsprechend großen Höhe des Kühlgutbetts die Tendenz zu einer Beschleunigung der Fördergeschwindigkeit bewirken, durch die der gegensinnige Einfluß des geringeren Durchströmungswiderstands zumindest wettgemacht wird. Es wird vermieden, daß der Kühlereinlaufschacht mit groben Ofenansatzbrocken überfüllt und der Antrieb des Kühlerrosts überlastet werden könnte, was einen Ofenstillstand zur Folge hätte.Due to the influence of the height of the refrigerated goods bed, the weaknesses, taking into account the flow resistance alone are inevitable, reduced. So it just happens in that mentioned example of the production of coarse chunks of kiln the measurement of a correspondingly large height of the refrigerated goods bed the tendency to accelerate the conveying speed by which the opposing influence of the lesser Flow resistance is at least made up for. It will avoided that the radiator inlet shaft with coarse chunks of furnace overfilled and the drive of the grille overloaded could be, which would result in a furnace shutdown.

Ein weiterer Vorteil der Erfindung besteht darin, daß beim Unterschreiten einer Mindestklinkerbetthöhe die Förderbewegung des Rosts gestoppt werden kann. Im Falle von Betriebsunterbrechungen wird dadurch bewirkt, daß der Rost auch im Anfangsbereich mit Gut bedeckt ist. Dadurch wird verhindert, daß heißes Gut beim Wiederanfahren auf den ungeschützten Rost fällt, und die thermische Belastung der Rostplatten beim Wiederanfahren wird vermindert.Another advantage of the invention is that when The conveyor movement falls below a minimum clinker bed height the rust can be stopped. In the event of business interruptions is caused by the rust also in the initial area is covered with good. This prevents that hot goods when restarting on the unprotected grate falls, and the thermal load on the grate plates when restarting is reduced.

Die Erfindung führt zu einer Vergleichmäßigung der Rostbelegung und zu einer wärmewirtschaftlich besseren Kühlluftausnutzung infolge der geringeren Schwankung der Temperatur der in den Ofen geführten Sekundärluft.The invention leads to an equalization of the grate occupancy and a better economic use of cooling air due to the lower fluctuation in the temperature of the secondary air fed into the furnace.

Es hat sich gezeigt, daß die Höhe des Kühlgutbetts die wichtigere Einflußgröße ist. Sie wird deswegen vorzugsweise stärker zur Einwirkung gebracht als der Durchströmungswiderstand. In der Praxis kann dies dadurch verwirklicht werden, daß die Höhe des Kühlgutbetts als Führungsgröße und der Durchströmungswiderstand als Störgröße bzw. Korrekturgröße verwendet wird. Bei einer besonders vorteilhaften Ausführungsform wird der momentane Durchströmungswiderstand nicht oder nicht ausschließlich unmittelbar eingesetzt, sondern statt dessen oder zusätzlich seine erste Ableitung oder seine Abweichung vom Langzeitwert.It has been shown that the height of the refrigerated goods bed is the more important Influencing variable is. Therefore, it preferably gets stronger acted as the flow resistance. In practice, this can be achieved in that the Height of the refrigerated goods bed as a reference variable and the flow resistance used as a disturbance variable or correction variable becomes. In a particularly advantageous embodiment the current flow resistance not or not exclusively used immediately, but instead or additionally its first derivative or its deviation from Long-term value.

Der Durchströmungswiderstand und/oder seine erste Ableitung werden somit als Korrekturgröße auf den von der Klinkerbetthöhe vorgegebenen Sollwert der Fördergeschwindigkeit aufgeschaltet, um den Körnungseinfluß auf den Wärmeübergang zu kompensieren und eine annähernd konstante Energierückführung in den Ofen und gegebenenfalls eine Vergleichmäßigung des Wärmeaustauschs zu ermöglichen. Sinkt der Druckwiderstand im Klinker, wird der Sollwert der Klinkerbetthöhe korrektiv angehoben, um den Wärmeaustausch zu verbessern. Steigt der Druckwiderstand im Kühlgutbett, wird der Sollwert der Betthöhe vermindert, um den Wärmeaustausch auf einem konstanten Niveau zu halten.The flow resistance and / or its first derivative are therefore used as a correction variable based on the clinker bed height specified setpoint of the conveying speed, to influence the grain on the heat transfer compensate and an almost constant energy return in the oven and, if necessary, an equalization of the To allow heat exchange. If the pressure resistance in the Clinker, the target value of the clinker bed height is correctively increased, to improve heat exchange. If the Pressure resistance in the refrigerated goods bed becomes the setpoint for the bed height decreased to keep the heat exchange at a constant level to keep.

Jedoch ist es auch möglich, den Durchströmungswiderstand als Führungsgröße und die Schichthöhe als Korrekturgröße zu verwenden. Ferner kann auch in beiden Fällen die zeitliche Änderung der Schichthöhe in die Regelung einbezogen werden. However, it is also possible to consider the flow resistance as Use the reference variable and the layer height as a correction variable. Furthermore, the change in time can also occur in both cases the layer height can be included in the regulation.

Der Begriff Regeln meint im vorliegenden Zusammenhang in erster Linie in Übereinstimmung mit der üblichen Terminologie die Beeinflussung der Fördergeschwindigkeit in geschlossener Regelschleife. Jedoch soll die Beeinflussung in offener Schleife, die üblicherweise als Steuern bezeichnet wird, dadurch nicht ausgeschlossen sein.In the present context, the term rules means first Line in line with common terminology influencing the conveying speed in closed Control loop. However, the interference is said to be more open Loop that is commonly referred to as taxes not be excluded.

Für die Messung der Höhe des Kühlgutbetts im Anfangsbereich des Kühlers eignen sich beispielsweise bekannte Radargeräte. Der Durchströmungswiderstand im Anfangsbereich des Kühlers ergibt sich aus dem dort eingesetzten konstant geregelten Kühlluftvolumen und dem sich dabei ergebenden Differenzdruck zwischen der zugeführten Luft und dem Rostoberraum oder (vereinfachend) aus dem Gegendruck.For measuring the height of the refrigerated goods bed in the initial area the radiator, for example, known radars are suitable. The flow resistance in the initial area of the cooler results from the constant regulated used there Cooling air volume and the resulting differential pressure between the supplied air and the grate top space or (simplifying) from the counter pressure.

Unter der Fördergeschwindigkeit ist im vorliegenden Zusammenhang die Geschwindigkeit der Rostbewegung zu verstehen. Bei einem Schubrost entspricht diese dem Produkt aus Schublänge und Frequenz der oszillierenden Schubbewegung. Sie kann von der Transportgeschwindigkeit des darauf befindlichen Kühlgutbetts abweichen.Under the conveyor speed is in the present context understand the speed of the rust movement. at a sliding grate corresponds to the product of drawer length and frequency of the oscillating thrust movement. It can from the transport speed of the refrigerated goods bed on it differ.

Beispiel:Example:

Die Fördergeschwindigkeit des Schubrosts eines Kühlers für Zementklinker ist so zu regeln, daß sich eine Schichthöhe von 600 mm ergibt, sofern dabei ein Wert des Durchströmungswiderstands gemessen wird, der dieser Schichthöhe als normal entsprechend vorbestimmt wurde, beispielsweise 60 mbar. Wird bei dieser Schichthöhe ein geringerer Durchströmungswiderstand gemessen, beispielsweise 50 mbar, so ändert der Regler den Sollwert der Schichthöhe auf 650 mm.The conveying speed of a cooling grate's sliding grate Cement clinker is to be regulated so that a layer height of 600 mm, if there is a value of the flow resistance is measured, which corresponds to this layer height as normal was predetermined, for example 60 mbar. Is at this layer height a lower flow resistance measured, for example 50 mbar, the controller changes the Target value of the layer height to 650 mm.

Claims (4)

  1. Method of controlling the conveying speed of a grate cooler as a function of the state of the bed of material to be cooled in the initial region of the cooler while taking into account the flow resistance, characterized in that the conveying speed is controlled as a function of both the height of the bed of material to be cooled and the flow resistance in the initial region of the cooler, namely with the tendency of the conveying speed to accelerate when a large height of the layer of material to be cooled is determined, and vice versa, and also with the tendency of the conveying speed to accelerate when a large flow resistance is determined, and vice versa.
  2. Method according to Claim 1, characterized in that the height of the bed of material to be cooled is used as reference variable and the flow resistance is used as correcting variable.
  3. Method according to Claim 2, characterized in that, for the control of the conveying speed, instead of the flow resistance or the height of the bed of material to be cooled, or in addition to the flow resistance or the height of the bed of material to be cooled, the change per unit time in the flow resistance or in the height of the bed of material to be cooled is used.
  4. Method according to Claim 2, characterized in that, for the control of the conveying speed, instead of the flow resistance and/or the height of the bed of material to be cooled, or in addition to the flow resistance or in addition to the height of the bed of material to be cooled, the deviation of the flow resistance or of the height of the bed of material to be cooled from their long-time value is used.
EP98104947A 1998-03-18 1998-03-18 Control process of the conveyance speed in a travelling grate cooler Expired - Lifetime EP0943881B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP98104947A EP0943881B1 (en) 1998-03-18 1998-03-18 Control process of the conveyance speed in a travelling grate cooler
DE59811795T DE59811795D1 (en) 1998-03-18 1998-03-18 Process for regulating the conveying speed of a grate cooler
DK98104947T DK0943881T3 (en) 1998-03-18 1998-03-18 Method for regulating the transport speed of a grate cooler
AT98104947T ATE273498T1 (en) 1998-03-18 1998-03-18 METHOD FOR CONTROLLING THE CONVEYING SPEED OF A GRATE COOLER
US09/271,681 US6036483A (en) 1998-03-18 1999-03-18 Method of controlling the conveying speed of a grate cooler
JP07379699A JP4402760B2 (en) 1998-03-18 1999-03-18 Control method of transfer speed of lattice cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98104947A EP0943881B1 (en) 1998-03-18 1998-03-18 Control process of the conveyance speed in a travelling grate cooler

Publications (2)

Publication Number Publication Date
EP0943881A1 EP0943881A1 (en) 1999-09-22
EP0943881B1 true EP0943881B1 (en) 2004-08-11

Family

ID=8231609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98104947A Expired - Lifetime EP0943881B1 (en) 1998-03-18 1998-03-18 Control process of the conveyance speed in a travelling grate cooler

Country Status (6)

Country Link
US (1) US6036483A (en)
EP (1) EP0943881B1 (en)
JP (1) JP4402760B2 (en)
AT (1) ATE273498T1 (en)
DE (1) DE59811795D1 (en)
DK (1) DK0943881T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833234A (en) * 2014-02-10 2015-08-12 山西太钢不锈钢股份有限公司 Method for controlling dynamic balance of level of material bin in sintering process of sintering machine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004020574U1 (en) * 2003-05-08 2005-08-11 Claudius Peters Technologies Gmbh Process for treating, especially cooling, a bulk material layer uses a gas stream on a grid consisting of panels driven forward and backward in the conveying direction
DE102004054417B4 (en) * 2004-11-11 2014-02-20 Khd Humboldt Wedag Gmbh Method for controlling the operation of a bulk material cooler
DE102005032518B4 (en) * 2005-07-12 2017-10-19 Thyssenkrupp Industrial Solutions Ag Method and device for cooling bulk material
DE102007019530C5 (en) * 2007-04-25 2018-01-04 Alite Gmbh Method and device for cooling a bulk material layer lying on a conveyor grate
DE202013005996U1 (en) 2013-06-27 2013-07-24 Khd Humboldt Wedag Gmbh Clinker cooler with grate for the separation of large clinker dross
DE102014000255B4 (en) 2014-01-08 2018-03-01 Khd Humboldt Wedag Gmbh Method for controlling the efficiency of a bulk material cooler
CN103808160B (en) * 2014-01-26 2016-02-03 浙江邦业科技股份有限公司 Based on the thickness of feed layer characterizing method of grate-cooler hydraulic pressure
CN105447252B (en) * 2015-12-01 2018-10-16 中信重工机械股份有限公司 A kind of computational methods of pusher bar type hydraulic system of grate cooler type selecting
BE1027669B1 (en) * 2019-10-14 2021-05-12 Thyssenkrupp Ind Solutions Ag Method and cooler for cooling bulk goods, in particular cement clinker
WO2021074059A1 (en) * 2019-10-14 2021-04-22 Thyssenkrupp Industrial Solutions Ag Cooler for cooling bulk material
BE1027678B1 (en) * 2019-10-14 2021-05-12 Thyssenkrupp Ind Solutions Ag Cooler for cooling bulk goods
DE102019215771A1 (en) * 2019-10-14 2021-04-15 Thyssenkrupp Ag Cooler for cooling bulk goods

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031047A (en) * 1932-02-13 1936-02-18 Harry S Lee Apparatus for manufacturing, treating, and cooling cement clinkers
US2055941A (en) * 1932-08-22 1936-09-29 Allis Chalmers Mfg Co Cooler
US2084976A (en) * 1933-08-30 1937-06-22 Allis Chalmers Mfg Co Speed controller for clinker coolers
US3064357A (en) * 1959-09-02 1962-11-20 Industrial Nucleonics Corp Conveyor speed control by measuring material level
DE1408996B2 (en) * 1960-09-24 1970-09-10 Rheinische Kalksteinwerke GmbH, 5603 Wulfrath Method for the automatic control of a traveling grate cooler
US3236358A (en) * 1961-05-19 1966-02-22 Allis Chalmers Mfg Co Means for controlling conveyer
DD104354A1 (en) * 1972-06-26 1974-03-05
US3929219A (en) * 1974-03-27 1975-12-30 Dravo Corp Reciprocating variable speed material transfer conveyor system
US4170183A (en) * 1977-10-20 1979-10-09 Energy Generation, Inc. Incinerating method and apparatus having selective, controlled movement of materials during combustion
DE4003679A1 (en) * 1990-02-07 1991-08-22 Krupp Polysius Ag METHOD AND DEVICE FOR COOLING BURNED BULLET
JP3085325B2 (en) * 1992-05-20 2000-09-04 住友大阪セメント株式会社 Clinker cooler control device and control method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833234A (en) * 2014-02-10 2015-08-12 山西太钢不锈钢股份有限公司 Method for controlling dynamic balance of level of material bin in sintering process of sintering machine
CN104833234B (en) * 2014-02-10 2016-08-24 山西太钢不锈钢股份有限公司 A kind of sintering machine sintering process material bin dynamic equilibrium control method

Also Published As

Publication number Publication date
US6036483A (en) 2000-03-14
ATE273498T1 (en) 2004-08-15
JP2000065331A (en) 2000-03-03
EP0943881A1 (en) 1999-09-22
DE59811795D1 (en) 2004-09-16
JP4402760B2 (en) 2010-01-20
DK0943881T3 (en) 2005-01-03

Similar Documents

Publication Publication Date Title
EP0943881B1 (en) Control process of the conveyance speed in a travelling grate cooler
EP1812766B1 (en) Method for controlling the operation of a bulk good grate cooler
DE2825718C2 (en) Loading device for shaft furnaces, in particular blast furnaces, and method for introducing and distributing the filling material by means of this device
EP3585749A1 (en) Installation for producing cement clinker and method for operating such an installation
DE2428090B2 (en) TEMPERATURE CONTROL PROCEDURE FOR A MULTI-ZONE THROUGH-OUT FOLDER
DE2019369A1 (en) Method for drying tobacco and drying conveyor
EP3171105B1 (en) Cooling device with several temperature zones
DE3041958C2 (en) Method for controlling a pelletizing plant for fine-grained ores
DE102005032518B4 (en) Method and device for cooling bulk material
DE2047529A1 (en) Method and device for regulating a cement rotary kiln
DE69404208T2 (en) Method and device for sintering cement clinker
DE102014000255B4 (en) Method for controlling the efficiency of a bulk material cooler
DE3041959C2 (en) Process for sintering fine-grain iron ores
DE2519884A1 (en) METHOD AND DEVICE FOR THE HEAT TREATMENT OF PARTICULATE MATERIAL WITH DIFFERENT PARTICLE SIZES
EP4061552A1 (en) Adjustment of an outlet temperature of a metal strip exiting a rolling train
DE4426146C2 (en) Method and device for distributing bulk material on a conveyor grate
DE677275C (en) Process for the production of calcium cyanamide
DE102004060207A1 (en) Controlling cooler for piece-form material, using cooling gas passed upwards for material on grid, using comparison of stored and measured operating parameters to adjust air distributor flap position
DE69204960T2 (en) Method and device for load control of boilers with mechanical traveling grate
EP0198814A2 (en) Reheating furnace for reheating and temperature averaging hot steel stock
EP0178401A2 (en) Process to adapt a tunnel furnace to various performances, and a calculator-controlled tunnel furnace
DE2715423C2 (en) Method and device for igniting a sintered mixture of ores and solid fuels on a sintering belt
DE2444351A1 (en) FORCED CONTROL FOR PROCEDURES IN RESTRICTED FACILITIES
BE1027678B1 (en) Cooler for cooling bulk goods
DE102005047433A1 (en) Computer-optimized process regulates the operation of a plate glass heat-treatment oven using measured parameters

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE DK FR GB GR IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RTI1 Title (correction)

Free format text: CONTROL PROCESS OF THE CONVEYANCE SPEED IN A TRAVELLING GRATE COOLER

17P Request for examination filed

Effective date: 20000223

AKX Designation fees paid

Free format text: AT DE DK FR GB GR IT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BMH CLAUDIUS PETERS GMBH

17Q First examination report despatched

Effective date: 20030129

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CLAUDIUS PETERS TECHNOLOGIES GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE DK FR GB GR IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 59811795

Country of ref document: DE

Date of ref document: 20040916

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20040922

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041111

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041111

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050318

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAR Examination of admissibility of opposition: information related to receipt of reply deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE4

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAR Examination of admissibility of opposition: information related to receipt of reply deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE4

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAR Examination of admissibility of opposition: information related to receipt of reply deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE4

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAQ Examination of admissibility of opposition: information related to despatch of communication + time limit deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE2

PLAR Examination of admissibility of opposition: information related to receipt of reply deleted

Free format text: ORIGINAL CODE: EPIDOSDOPE4

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KHD HUMBOLDT WEDAG AGPATENTE UND MARKENABT. T-PP

Effective date: 20050506

ET Fr: translation filed
26 Opposition filed

Opponent name: KHD HUMBOLDT WEDAG GMBH

Effective date: 20050506

26 Opposition filed

Opponent name: KHD HUMBOLDT WEDAG GMBH

Effective date: 20050506

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 20081104

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59811795

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59811795

Country of ref document: DE

Representative=s name: GLAWE, DELFS, MOLL, PATENT- UND RECHTSANWAELTE, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20111001

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 59811795

Country of ref document: DE

Representative=s name: GLAWE DELFS MOLL PARTNERSCHAFT MBB VON PATENT-, DE

Effective date: 20120109

Ref country code: DE

Ref legal event code: R081

Ref document number: 59811795

Country of ref document: DE

Owner name: CLAUDIUS PETERS PROJECTS GMBH, DE

Free format text: FORMER OWNER: CLAUDIUS PETERS TECHNOLOGIES GMBH, 21614 BUXTEHUDE, DE

Effective date: 20120109

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120209 AND 20120215

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: CLAUDIUS PETERS PROJECTS GMBH, DE

Effective date: 20120309

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20120328

Year of fee payment: 15

Ref country code: GB

Payment date: 20120322

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130318

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130318

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20150325

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20150319

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20150522

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59811795

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20160331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20161130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161001