EP0908692A2 - Procédé de fonctionnement d'un régénérateur et régénérateur - Google Patents

Procédé de fonctionnement d'un régénérateur et régénérateur Download PDF

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Publication number
EP0908692A2
EP0908692A2 EP98118831A EP98118831A EP0908692A2 EP 0908692 A2 EP0908692 A2 EP 0908692A2 EP 98118831 A EP98118831 A EP 98118831A EP 98118831 A EP98118831 A EP 98118831A EP 0908692 A2 EP0908692 A2 EP 0908692A2
Authority
EP
European Patent Office
Prior art keywords
bulk material
regenerator
hot
cold
grate
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.)
Granted
Application number
EP98118831A
Other languages
German (de)
English (en)
Other versions
EP0908692B1 (fr
EP0908692A3 (fr
Inventor
Andreas Emmel
Dragan Stevanovic
Hans-Georg Fassbinder
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.)
Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
Original Assignee
Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
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.)
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Publication date
Application filed by Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik filed Critical Atz-Evus Applikations- und Technik-Zentrum fur Energieverfahren- umwelt- und Stromungstechnik
Publication of EP0908692A2 publication Critical patent/EP0908692A2/fr
Publication of EP0908692A3 publication Critical patent/EP0908692A3/fr
Application granted granted Critical
Publication of EP0908692B1 publication Critical patent/EP0908692B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/22—Arrangements of heat-exchange apparatus
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B9/00—Stoves for heating the blast in blast furnaces
    • 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
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
    • F28D17/005—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using granular particles

Definitions

  • the invention relates to a method for operating a Bulk regenerator or regenerator according to the generic term of claim 1. It further relates to a regenerator the preamble of claim 6.
  • regenerators are used for heating gases Temperatures of usually 800 ° C used.
  • Regenerators are used for production in blast furnace operation from hot wind with a temperature of 1200 ° C.
  • Such regenerators are e.g. from US 2,272,108, DE 41 08 744 C1 or DE 42 38 652 C1 known.
  • regenerators In the known regenerators is in an annulus between an inner cylindrical so-called Hot grate and a so-called coaxially surrounding it Cold rust picked up a bulk material. Both the hot and the Cold rust are provided with openings or openings, the Diameter is selected so that gas can pass through, a passage of bulk goods is impossible.
  • the cold grate is usually made of a perforated plate and the hot grate is usually made of ceramic materials, e.g. made from Schamoct stones.
  • As bulk goods for example Gravel or alumina balls are used.
  • the object of the invention is a method for operating a Regenerators and a regenerator specify which one ensure improved service life.
  • the drained bulk material is advantageously in the Annulus returned. This will make the required minimum dumping height maintain bulk goods. When using High quality bulk goods can be recycled operating costs are reduced.
  • the drained bulk goods can be transported pneumatically, wherein it is advantageously in the annulus by a provided near its ceiling feed opening becomes.
  • a transport gas can be separated from the bulk material and be blown off into the environment.
  • the hot and / or cold grate is designed in this way is / are that the bulk material radially when heated can expand freely. - This eliminates the effects of thermal conditional compressive stresses of the bulk material on the hot and / or Reduced cold rust. A break of the hot and / or Cold rust is avoided. The service life of the regenerator is extended.
  • a design feature is in the hot and / or cold grate at least one opening is provided, the diameter of which is larger than the maximum grain diameter, so that in the Bulk compressive stress formed by the passage of a Bulk content can be compensated through the opening.
  • Conveniently is on the side facing away from the annulus Opening a device for collecting through the opening leaked bulk material provided.
  • the device to collect at least one at an angle to the axis of the regenerator extending inclined surface, the inclined surface from the outside of the hot space facing away from the annular space Cold rust runs to an inner side facing the annular space and descends towards the bottom of the annulus.
  • the device can be provided with openings provided lid can be closed, the openings are designed so that a passage of gas is possible Passage of bulk material is impossible. This will make a Individual bulk grains are carried away by the emerging Avoided gas flow.
  • At least one drain opening is provided in the bottom of the annulus.
  • the drain opening conveniently opens into a tube, wherein a means for closing the tube can be provided.
  • the tube advantageously opens into a transport tube.
  • a Device for generating a transport gas stream can with be connected to the transport pipe so that the bulk material is pneumatically is transportable through the transport pipe.
  • the transport pipe can be used with a near the ceiling of the Annular space provided feed connection.
  • a device for separating the bulk material from Transport gas provided. This will cool the area of the annulus avoided.
  • a regenerator according to the prior art is shown in cross section.
  • An axis of the regenerator is labeled A.
  • Bulk material 4 (here shown only partially) with a maximum grain diameter D max is received in the annular space 1 between a cold grate 2 having a cylindrical shape and a hot grate 3 arranged coaxially thereto.
  • the cold grate 2 and the hot grate 3 have gas passages 5.
  • the maximum diameter of the gas passages 5 is selected such that bulk material 4 cannot pass through.
  • 6 denotes a hot collecting space or hot space surrounded by the hot grate 3
  • 7 denotes a wall surrounding the cold grate 2.
  • a cold collecting space or cold space 8 is located between the wall 7 and the cold grate 2.
  • the hot grill 3 consists of several one above the other, for example made of firebricks manufactured, ring segments 9. Two superimposed Ring segments 9 form a plurality on the Bulk material 4 facing openings O. Instead of ring segments can of course also be polygonal Segments are used.
  • FIG. 3 shows an enlarged cross-sectional view according to the region designated by X in FIG. 2.
  • Bulk material 4 which has passed through the opening O lies essentially on a flat surface 10 which is delimited by a first inclined surface 11.
  • the first inclined surface 11 is directed obliquely to the axis A. It falls from an outer side of the hot grate 3 facing away from the bulk material 4 to an inner side facing the bulk material 4.
  • two support webs 12 extending radially from an inner radius R i to an outer radius R a together with the flat surface 10 and the first inclined surface 11 form a department or a compartment F.
  • 5a shows a second exemplary embodiment, namely a cold grate 2.
  • compartments F are provided on the side facing away from the bulk material 4 and are radially delimited by second inclined surfaces 13.
  • the bulk material 4 passes through the opening O with the formation of a typical pour angle ⁇ and lies on the second inclined surface 13 with a first length L 1 .
  • a second length L 2 of the second inclined surface 13 is greater than the first length L 1 .
  • the compartment F is delimited radially by a third inclined surface 14 and a vertical surface 15.
  • the angle of repose ⁇ is formed, the bulk material 4 is in contact with the vertical surface 15 with a first height H 1 .
  • a second height H 2 of the vertical surface 15 is greater than the first height H 1 .
  • FIG. 7 is a cross-sectional view of a fourth embodiment shown.
  • a drain opening 16 which is connected to a pipe 17 with a Transport tube 18 is connected.
  • One at the end of the transport pipe 18 attached fan 19 is used to generate a Transport gas flow.
  • a cyclone 20 is attached, the conically tapered opening opens into the annular space 1.
  • the cyclone 20 is with one Drain valve 21 provided.
  • FIG. 8a to 8c show a first outlet in cross section and in top view.
  • the outlet opening 16 opens into a pipe socket 22.
  • the pipe socket 22 is closed with a slide 23, the slider 23 by means of at least one Bolt 24 is secured in the closed position.
  • In open Position aligns a slide opening 25 with the Pipe socket 22.
  • the drain pipe 26 can be, for example, a flexible metal pipe executed and provided with a closure 27.
  • openings O in the hot 3 and / or cold grate 2 can be provided, the diameter of which is larger than the maximum grain diameter D max of the bulk material 4.
  • a device is provided in each case that stalls bulk material 4 that has passed through. The stowage takes place through the formation of the bulk material angle ⁇ typical for the respective bulk material 4.
  • the outlet openings 16 are expediently via pipes 17 connected to a common transport tube 18.
  • the drained Bulk material 4 gets into the transport pipe 18 and is blown into a cyclone 20 by the action of the blower 19.
  • the transport gas is separated in cyclone 20 of the bulk material 4.
  • the bulk material 4 is in the vicinity of the ceiling D fed to the annulus 1 again.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Furnace Details (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Saccharide Compounds (AREA)
  • Drying Of Solid Materials (AREA)
  • Baking, Grill, Roasting (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
EP98118831A 1997-10-08 1998-10-06 Procédé de fonctionnement d'un régénérateur et régénérateur Expired - Lifetime EP0908692B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19744387 1997-10-08
DE19744387A DE19744387C1 (de) 1997-10-08 1997-10-08 Vorrichtung zum Spannungsabbau in radialdurchströmten Schüttgutregeneratoren

Publications (3)

Publication Number Publication Date
EP0908692A2 true EP0908692A2 (fr) 1999-04-14
EP0908692A3 EP0908692A3 (fr) 1999-12-22
EP0908692B1 EP0908692B1 (fr) 2003-05-07

Family

ID=7844909

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98118831A Expired - Lifetime EP0908692B1 (fr) 1997-10-08 1998-10-06 Procédé de fonctionnement d'un régénérateur et régénérateur

Country Status (6)

Country Link
US (2) US6092300A (fr)
EP (1) EP0908692B1 (fr)
JP (1) JP4210370B2 (fr)
AT (1) ATE239894T1 (fr)
DE (2) DE19744387C1 (fr)
ES (1) ES2199395T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014663A1 (fr) 2000-08-11 2002-02-21 Applikations- Und Technikzentrum Für Energie-Verfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Procede pour convertir de l'energie thermique en travail mecanique
WO2003008865A1 (fr) * 2001-07-17 2003-01-30 Siemens Aktiengesellschaft Dispositif de separation des poussieres contenues dans des gaz de fumee provenant d'installations de combustion, de preference d'installations de combustion de combustibles solides
DE102004050465B3 (de) * 2004-09-28 2005-09-15 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Verfahren zur Erwärmung und/oder Verdampfung eines Fluids
WO2006034771A1 (fr) * 2004-09-28 2006-04-06 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Procede de chauffage et/ou d'evaporation d'un fluide
US7077888B2 (en) 2001-07-17 2006-07-18 Siemens Aktiengesellschaft Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants
EP1717210A1 (fr) 2005-04-25 2006-11-02 Siemens Aktiengesellschaft Procédé pour l'optimisation d'un procédé de combustion
WO2014023373A1 (fr) 2012-08-08 2014-02-13 Saarstahl Ag Lance à vent chaud équipée d'un porte-vent disposé sur la sortie de vent chaud
WO2014082716A1 (fr) 2012-11-30 2014-06-05 Saarstahl Ag Procédé pour faire fonctionner un régénérateur (réchauffeur à galets) ainsi que le régénérateur lui-même
WO2016015840A1 (fr) * 2014-07-31 2016-02-04 Karl Brotzmann Consulting Gmbh Procédé et dispositif de réception, de stockage et de délivrance d'énergie thermique provenant de gaz
WO2017134177A1 (fr) * 2016-02-03 2017-08-10 Karl Brotzmann Consulting Gmbh Procédé et dispositif pour capter, stocker et restituer de l'énergie thermique issue de gaz

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004026646B4 (de) * 2004-06-01 2007-12-13 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Verfahren zur thermischen Entsorgung schadstoffhaltiger Substanzen
US9950872B2 (en) 2015-11-30 2018-04-24 Superior Manufacturing LLC Bin sweep auger unplugging system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272108A (en) 1940-01-19 1942-02-03 Research Corp Regenerative stove
DE4108744C1 (en) 1991-03-18 1992-08-27 Atz Energie Umwelt Stroemungstechnik Gas heating jacketed regenerator with heat storage medium - has central chamber surrounded by layer of pebbles or granular material
DE4238652C1 (de) 1992-11-16 1994-05-11 Air Liquide Regenerator zum Aufheizen von Gasen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458358A (en) * 1944-03-14 1949-01-04 Socony Vacuum Oil Co Inc Process of regenerating a moving bed of solid catalyst
US2458434A (en) * 1944-04-26 1949-01-04 Socony Vacuum Oil Co Inc Method and apparatus for regenerating moving bed particle form contact mass materials
GB1219055A (en) * 1968-03-05 1971-01-13 Bergwerksverband Gmbh Improvements in or relating to adsorption processes
US4220196A (en) * 1977-05-05 1980-09-02 U.S. Philips Corporation Heat storage device
US4307773A (en) * 1978-08-28 1981-12-29 Smith Richard D Fluid bed heat exchanger for contaminated gas
US4349367A (en) * 1981-03-31 1982-09-14 Ppg Industries, Inc. Method of recovering waste heat from furnace flue gases using a granular heat exchange means
DE3841708C1 (fr) * 1988-12-10 1989-12-28 Kloeckner Cra Patent Gmbh, 4100 Duisburg, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2272108A (en) 1940-01-19 1942-02-03 Research Corp Regenerative stove
DE4108744C1 (en) 1991-03-18 1992-08-27 Atz Energie Umwelt Stroemungstechnik Gas heating jacketed regenerator with heat storage medium - has central chamber surrounded by layer of pebbles or granular material
DE4238652C1 (de) 1992-11-16 1994-05-11 Air Liquide Regenerator zum Aufheizen von Gasen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002014663A1 (fr) 2000-08-11 2002-02-21 Applikations- Und Technikzentrum Für Energie-Verfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Procede pour convertir de l'energie thermique en travail mecanique
WO2003008865A1 (fr) * 2001-07-17 2003-01-30 Siemens Aktiengesellschaft Dispositif de separation des poussieres contenues dans des gaz de fumee provenant d'installations de combustion, de preference d'installations de combustion de combustibles solides
US7077888B2 (en) 2001-07-17 2006-07-18 Siemens Aktiengesellschaft Device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants
DE102004050465B3 (de) * 2004-09-28 2005-09-15 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Verfahren zur Erwärmung und/oder Verdampfung eines Fluids
WO2006034771A1 (fr) * 2004-09-28 2006-04-06 Applikations- Und Technikzentrum Für Energieverfahrens-, Umwelt- Und Strömungstechnik (Atz-Evus) Procede de chauffage et/ou d'evaporation d'un fluide
EP1717210A1 (fr) 2005-04-25 2006-11-02 Siemens Aktiengesellschaft Procédé pour l'optimisation d'un procédé de combustion
WO2014023373A1 (fr) 2012-08-08 2014-02-13 Saarstahl Ag Lance à vent chaud équipée d'un porte-vent disposé sur la sortie de vent chaud
WO2014082716A1 (fr) 2012-11-30 2014-06-05 Saarstahl Ag Procédé pour faire fonctionner un régénérateur (réchauffeur à galets) ainsi que le régénérateur lui-même
DE102012023517A1 (de) 2012-11-30 2014-06-05 Saarstahl Ag Verfahren zum Betrieb eines Regenerators (Pebble Heater) sowie Regenerator selbst
WO2016015840A1 (fr) * 2014-07-31 2016-02-04 Karl Brotzmann Consulting Gmbh Procédé et dispositif de réception, de stockage et de délivrance d'énergie thermique provenant de gaz
WO2017134177A1 (fr) * 2016-02-03 2017-08-10 Karl Brotzmann Consulting Gmbh Procédé et dispositif pour capter, stocker et restituer de l'énergie thermique issue de gaz

Also Published As

Publication number Publication date
US6092300A (en) 2000-07-25
JP4210370B2 (ja) 2009-01-14
JPH11193408A (ja) 1999-07-21
DE19744387C1 (de) 1999-04-29
ES2199395T3 (es) 2004-02-16
DE59808239D1 (de) 2003-06-12
ATE239894T1 (de) 2003-05-15
EP0908692B1 (fr) 2003-05-07
US6334265B1 (en) 2002-01-01
EP0908692A3 (fr) 1999-12-22

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