US3834864A - Regenerator construction - Google Patents

Regenerator construction Download PDF

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Publication number
US3834864A
US3834864A US00342808A US34280873A US3834864A US 3834864 A US3834864 A US 3834864A US 00342808 A US00342808 A US 00342808A US 34280873 A US34280873 A US 34280873A US 3834864 A US3834864 A US 3834864A
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United States
Prior art keywords
chamber
apertures
series
conduits
combination
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
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US00342808A
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English (en)
Inventor
W Jakobi
B Voges
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.)
Heinrich Koppers GmbH
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Heinrich Koppers GmbH
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Publication date
Application filed by Heinrich Koppers GmbH filed Critical Heinrich Koppers GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/21—Burners specially adapted for a particular use
    • F23D2900/21001—Burners specially adapted for a particular use for use in blast furnaces

Definitions

  • An upright regenerator column has in its lower end portion a burner unit comprising an outlet unit formed with an annular series of apertures which communicate with the regions in the interior of the column above and below the unit and a distributor unit located at the lower end portion spaced from the outlet unit and having at least one distributor chamber each for a fuel-fluid and a combustion-supporting fluid, as well as conduits which communicate these chambers with respective ones of the apertures.
  • the walls of the distributor unit are wholly or in part of a metallic jacket provided with a lining of tamped refractory material.
  • the present invention relates generally to a regenerator construction, and more particularly to a regenerator construction having a ceramic burner unit.
  • Regenerators in blast furnaces and the like require burner units to provide the necessary heat.
  • Such burner units are known in various different types of constructions, but common to them all is the fact that they are made in their entirety of refractory masonry walls which are located in the lower portion of the sheet metal-jacketed shaft of the regenerator column. It has been observed that there are certain problems which recur with this type of burner unit and which make further improvements highly desirable.
  • the masonry walls of the burner unit must be erected from a great number of differently configurated shaped refractory bricks. Of course, the number of such burner units which is produced is relatively small, and the number of any particularly shaped brick required for the erection of such a burner unit is also small.
  • a regenerator in a combination comprising first wall means defining an upright regenerator column having a lower end portion, and an outlet unit installed in this lower end portion and provided with an annular series of apertures communicating with the regions above and below the unit.
  • a distributor unit at the lower end portion, being spaced from the outlet unit and comprising second wall means defining at least one distributor chamber each for a fuel-fluid and a combustion-supporting fluid and conduits extending from these chambers to respective ones of the aforementioned apertures.
  • the second wall means is at least in the region of these chambers composed atleast in part of a metallic jacket and a lining of tamped refractory material therein.
  • novel burner unit according to the present invention no longer utilizes or requires shaped ceramic bricks.
  • a burner unit according to the present invention has a distributor unit whose metallic jacket can be fully or substantially fully prefabricated, so that it need merely be inserted into or located at the lower end portion of the regenerator column, rather than having to be assembled in situ.
  • the lining is produced by filling hollows provided for this purpose with refractory material, which is thereupon tamped to form a cohesive lining replacing the prior-art masonry walls which are assembled from individual shaped refractory bricks.
  • the burner unit according to the present invention can be constructed more simply as well as more rapidly than the prior art, and it can be produced at less expense.
  • the metallic jacket may be of sheet steel, of cast iron or the like and serves at the one hand as a protective cover for the tamped refractory lining, which it protects especially in a mechanical sense, and on the other hand it also serves as a mold or fonn permitting the production of the ramped refractory lining in situ while at the same time avoiding the necessity for a separate form which ,would have to be later removed.
  • a conventional masonry wallof refractory bricks is thenerected as before, from the second wall means of the distributor unit to the apertures of the outlet unit.
  • the region of the installation is subject to very high temperatures so that the use of metallic material alone is not usually possible, and on the other hand only a relatively small numberof differently shaped refractor bricks is required for erecting these particular masonry walls, so that these walls are not especially expensive to produce.
  • the entire second wall means it has been found that it is not absolutely necessary for the entire second wall means to be composed of a metallic jacket and a lining of tamped refractory material therein. Rather, at least in the region of the distributor chambers which is remote from the outlet unit the cooling effect of the incoming fluids is usually sufficiently noticeable for the permissible thermal stresses of metallic materials not to be exceeded.
  • the second wall means of the novel burner unit it possible, according to a further concept of the invention, for the second wall means of the novel burner unit to be provided in this region only of metallic material, thereby limiting the provision of the lining of tamped refractory material to the other regions and resulting in further economies of burner construction.
  • FIG. 1 is a vertical section through the lower end portion of a regenerator column and an associated burner unit according to the present invention.
  • FIG. 2 is a view similar to FIG. 1 but illustrating a somewhat different burner according to the present invention.
  • reference numeral 1 identifies a sheet-metal wall of an upright regenerator column, only the lower end portion thereof being shown.
  • the burner unit according to the present invention is located in this lower end portion and serves to provide the necessary heat.
  • Reference numeral 2 identifies an inlet conduit which discharges into an annular distributor chamber 3, supplying the same with a combustion-supporting fluid such as air.
  • a combustible fuel-fluid is admitted via an inlet conduit 4 into a further distributor chamber 5 which in the illustrated embodiment is located within the confines of the chamber 3.
  • From the chamber 3 the fluid passes via a plurality of channels 6 which are here arranged in form of an annulus to the outlet unit 1a which is installed in the interior of the regenerator column upwardly spaced from the chamber 3.
  • the term outlet unit has been employed herein because it is the outlet through which the burner unit discharges into the column.
  • a further plurality of channels 7 also arranged in form of an annulus communicate with the chamber 5.
  • the channels 6 communicate with the apertures 8 of the unit 1a, and the channels 7 communicate with apertures 9 of the same unit, with the outlet ends of the channels 6 and 7 being so arranged as to alternate circumferentially of the unit la 1 so that the different fluids are discharged through circumferentially alternate ones of the aperture 8, 9.
  • a hollow column 10 extends through the center of the novel burner and serves a two-fold purpose, namely on the one hand to permit the entry of a worker for inspection or repair, and on the other hand to permit the admission of a start-up burner 11 which is required when the installation is to be first put into operation.
  • the burner 11 has inlets l2 and 13 for combustible gas and air, respectively. If additional air is required during the start-up period, it can e supplied via the conduct 2.
  • the interior of the hollow column 10 is lined with refractory material 16.
  • the burner unit comprises a distributor unit having a metallic jacket which in the illustrated embodiment of FIG. 1 is lined with a lining 14 of tamped refractory material (it can be the same as that conventionally used for fire bricks), in the region of the chambers 3, 5 and of the juncture of the same with the channels 6 and 7. Above this region and up to the apertures 8 and 9 masonry walls of conventional shaped fire bricks 17 are erected.
  • the lining 14 is produced in situ, by placing untamped refractory material into the various hollow spaces surrounded by the jacket 15 and tamping this material in well-known manner to produce the lining 14.
  • the fact that some of the masonry is erected from the fire bricks 17 is not a disadvantage because, as
  • FIG. 2 it will be seen that it rather resembles the embodiment of FIG. 1.
  • essentially the embodiment of FIG. 2 differs from that of FIG. 1, in that the circumferential walls of the chambers 3, 5 are only metallic walls 18 which are not provided with the tamped refractory lining 14.
  • the top wall and the bottom wall of the jacket are provided with the tamped refractory material 14.
  • the reason for providing the top wall with the lining 14, where the chambers 3 and 5 merge into the channels 6, 7 is that this region is located close to the outlet unit la where a high temperature prevails.
  • the reason for providing the bottom wall with the lining 14 is because here a direct heat radiation will develop in operation of the burner so that the metallic material of the jacket must be protected by the lining 14.
  • At the bottom wall there are also provided one or more (only one shown) inlets 19 which can be closed and which serve, when opened, for the admission of cleaning tools by means of which flue dust adhering to the inner walls bounding the chamber 5 can be readily removed.
  • a combination comprising flrst wall means defining an upright regenerator column having a lower end portion surrounding the burner unit; an outlet unit installed in said lower end portion so as to separate an upper region from a lower region of said lower end portion and provided with mutually alternating first and second annular series of apertures establishing communication between said upper and lower regions, said first wall means circumferentially surrounding a first chamber in said lower region; a distributor unit situated in said lower region of said lower portion spaced from said outlet unit and comprising second wall means including at least one double-walled jacket located within the confines of said first chamber and defining a second chamber in said lower region and a hollow space within said double-walled jacket; refractory material tamped in said hollow space so as to form a refractory lining; first and second conduit means extending between said first chamber and said first series of apertures and between said second chamber and said second series of apertures and connecting the former with the latter, respectively; and a masonry wall of
  • conduits comprise a series of first conduits communicating with said first chamber and said first series of apertures and a plurality of second conduits communicating with said second chamber and with said second series of apertures, said conduits being provided in said masonry wall in form of an annulus; and wherein said first conduits alternate with said second conduits in the circumferential direction of said annulus so as to connect said first chamber and said second chamber with the respective ones of the alternating apertures of said first series and of said second series of apertures.
  • a burner unit including, in combination, an outlet unit located in said lower end portion of said wall means so as to separate an upper region from a lower region of said lower end portion of said wall means, and including an annular portion with mutually alternating first and second series of apertures establishing communication between said upper and lower regions; a first chamber located within said wall means in said lower region of the same; a second chamber located also within said lower region of said wall means; two sets of conduit means. one econnecting said first chamber with said first series of apertures, and the other connecting said second chamber with said second series of apertures of said outlet unit; and heat insulating material located within the space between said chambers and in the space between said first and second conduit means.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Gas Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
US00342808A 1972-03-29 1973-03-19 Regenerator construction Expired - Lifetime US3834864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2215347A DE2215347C2 (de) 1972-03-29 1972-03-29 Keramischer Brenner für Hochofen-Winderhitzer

Publications (1)

Publication Number Publication Date
US3834864A true US3834864A (en) 1974-09-10

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ID=5840553

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US00342808A Expired - Lifetime US3834864A (en) 1972-03-29 1973-03-19 Regenerator construction

Country Status (6)

Country Link
US (1) US3834864A (xx)
JP (1) JPS5618845B2 (xx)
BE (1) BE796675A (xx)
DE (1) DE2215347C2 (xx)
FR (1) FR2178604A5 (xx)
IT (1) IT981956B (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940234A (en) * 1974-05-28 1976-02-24 John Zink Company Noiseless pms burner
US4259064A (en) * 1978-03-06 1981-03-31 Didier-Werke Ag Ceramic burner
US4838782A (en) * 1987-08-06 1989-06-13 Brian Wills Burner with regenerative bed
US5083917A (en) * 1990-05-15 1992-01-28 Cat Eye Co., Ltd. Single port inshot target burner
US6357255B1 (en) * 1998-09-24 2002-03-19 Osaka Gas Co., Ltd. Regenerator for use in ammonia absorption refrigerator
EP2333412A1 (en) * 2009-12-08 2011-06-15 Paul Wurth Refractory & Engineering GmbH Burner unit for steel making facilities
US20220003407A1 (en) * 2020-07-01 2022-01-06 Messer Industries Usa, Inc. Burner, furnace and method of generating a flame

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56124893U (xx) * 1980-02-22 1981-09-22
JPS57184448U (xx) * 1981-05-15 1982-11-22
DE3150574C2 (de) * 1981-12-21 1989-02-23 Martin & Pagenstecher GmbH, 5000 Köln Keramischer Brenner für einen senkrechten Winderhitzer-Brennschacht
DE3240852A1 (de) * 1982-11-05 1984-05-10 Didier-Werke Ag, 6200 Wiesbaden Keramischer brenner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1865983A (en) * 1927-05-13 1932-07-05 Peabody Engineering Corp Fuel burning apparatus
US1924936A (en) * 1931-08-22 1933-08-29 Bethlehem Steel Corp Furnace construction
US2040147A (en) * 1932-07-25 1936-05-12 Garnet W Mckee Gas burner
US3007512A (en) * 1955-10-28 1961-11-07 Shell Oil Co Burner for the burning of regenerator flue gas
US3376098A (en) * 1966-08-29 1968-04-02 Phillips Petroleum Co Two-chamber burner and process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1865983A (en) * 1927-05-13 1932-07-05 Peabody Engineering Corp Fuel burning apparatus
US1924936A (en) * 1931-08-22 1933-08-29 Bethlehem Steel Corp Furnace construction
US2040147A (en) * 1932-07-25 1936-05-12 Garnet W Mckee Gas burner
US3007512A (en) * 1955-10-28 1961-11-07 Shell Oil Co Burner for the burning of regenerator flue gas
US3376098A (en) * 1966-08-29 1968-04-02 Phillips Petroleum Co Two-chamber burner and process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
431 170;174;284 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940234A (en) * 1974-05-28 1976-02-24 John Zink Company Noiseless pms burner
US4259064A (en) * 1978-03-06 1981-03-31 Didier-Werke Ag Ceramic burner
US4838782A (en) * 1987-08-06 1989-06-13 Brian Wills Burner with regenerative bed
US5083917A (en) * 1990-05-15 1992-01-28 Cat Eye Co., Ltd. Single port inshot target burner
US6357255B1 (en) * 1998-09-24 2002-03-19 Osaka Gas Co., Ltd. Regenerator for use in ammonia absorption refrigerator
EP2333412A1 (en) * 2009-12-08 2011-06-15 Paul Wurth Refractory & Engineering GmbH Burner unit for steel making facilities
WO2011070070A3 (en) * 2009-12-08 2011-08-11 Paul Wurth Refractory & Engineering Gmbh Burner unit for steel making facilities
AU2010329886B2 (en) * 2009-12-08 2014-09-18 Paul Wurth Refractory & Engineering Gmbh Burner unit for steel making facilities
US20220003407A1 (en) * 2020-07-01 2022-01-06 Messer Industries Usa, Inc. Burner, furnace and method of generating a flame

Also Published As

Publication number Publication date
JPS497833A (xx) 1974-01-24
DE2215347A1 (de) 1973-10-04
BE796675A (fr) 1973-07-02
FR2178604A5 (xx) 1973-11-09
DE2215347C2 (de) 1982-06-16
JPS5618845B2 (xx) 1981-05-01
IT981956B (it) 1974-10-10

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