US3191583A - Flue for cooling combustible or waste gases - Google Patents

Flue for cooling combustible or waste gases Download PDF

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Publication number
US3191583A
US3191583A US239286A US23928662A US3191583A US 3191583 A US3191583 A US 3191583A US 239286 A US239286 A US 239286A US 23928662 A US23928662 A US 23928662A US 3191583 A US3191583 A US 3191583A
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United States
Prior art keywords
cooling
tubes
flue
walls
tube
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
US239286A
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English (en)
Inventor
Erwin Petritsch
Karl Nutz
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.)
Waagner Biro AG
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Waagner Biro AG
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 Waagner Biro AG filed Critical Waagner Biro AG
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Publication of US3191583A publication Critical patent/US3191583A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/183—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines in combination with metallurgical converter installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J11/00—Devices for conducting smoke or fumes, e.g. flues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F23J13/02—Linings; Jackets; Casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • cooling flues have been proposed using coolant tube walls.
  • the cooling tubes as well as their insulation and outer jacket are supported mostly by a separate steel construction.
  • embodiments have already been proposed where the cooling tubes themselves are combined to tube plates and thereby form a self-supporting flue construction which needs no separate support.
  • Most of the vertically arranged cooling tubes discharge on top and below into collecting chambers and carry on their outside the insulation and the outer jacket made of sheet metal. It is clear that such self-supporting constructions can be carried out with lower expenses than those where a separate steel construction is supporting the weight of the cooling flue.
  • the cooling tubes being mostly to 40 m. in length and having a small diameter have to accommodate the total weight of the cooling flue in compression and are loaded in buckling stress on account of their slenderness.
  • the vertically arranged wall forming cooling tubes are attached, in freelysuspended relation, in a support construction of the cooling flue which construction consist-s essentially of several suitable rigid downcomer tubes and .an upper,collecting chamber or header for the cooling medium.
  • the slender cooling tubes which now have to carry the total weight of the cooling flue together with insulation and outer jacket, too, are no longer loaded in buckling stress but in tension, only, and the rigidly dimensioned downcomer tubes of large diameter can easily accommodate the total compression load of the cooling flue.
  • These downcomer tubes may be rigidly anchored in the existing steel construction of the steel work building in any height between top edge and the bottom edge of the cooling flue, and transmit the load These downcomer support for the cooling flue.
  • the cooling tubes attached suspendingly at the upper end of the flue, and forming the walls of the flue, discharge with their lower ends in one or several coolant inlet chambers or headers into which the cooling medium enters. The cooling medium moves up in the cooling tubes and passes into the upper collecting chamber at the upper end from where it is removed by the downcomer tubes arranged as a support.
  • a further special advantage of the inventive construction lies in the free thermal expansion of the cooling tubes suspended at their upper ends.
  • these may be attached to the upper collecting chamber, for instance by fishplates, and discharge into to its upper discharge end. This opening is, according same through tube turns.
  • the cooling tubes themselves may be combined with each other according to the invention to tube plates by welded cross members, to which the outer jacket of the cooling flue is connected.
  • the hollow space between the outer jacket and the cooling tubes may be filled withinsulating material.
  • an embodiment is especially advantageous where a cooled suction hood is attached laterally to the lower end of the flue.
  • the suction hood is according to the invention supported by a tube construction attached to the supporting downcomer tubes of the cooling flue.
  • the advantage of this construction lies in the fact that the weight of the hood does not load the cooling tube of the flue walls in bending.
  • an expansion joint between the hood and the flue, which joint is provided gas tight with respect to the outer air.
  • the mentioned flue construction has a lateral opening over the whole width of the flue wall adjacent to the invention, formed by a tube frame into which the cooling tubes of the walls discharge on top and below,
  • the thermal expansion between the gas duct leading to the dust separating plant and the cooling flue is likewise accommodated by a corresponding gas tight expansion joint.
  • thecooling flue is provided with a corresponding large opening at its lower part in the tube wall.
  • the upper door girder is formed by acollecting chamber into which, according to the invention, the cooling the suction hood, which opening may be formed" by a cooledtube frame and closed by cooled wing doors.
  • Walls structurally, and that it provides a rigid door frame which may be sealed against penetration of leakage air.
  • FIG. 1 shows a longitudinal section of such a cooling flue with all necessary details.
  • FIG. 2 is a cross section of a cooling flue according to FIG. 1.
  • FIGS. 3 and 4 show details of the tube walls of the tube connections to the collecting chambers and of the outer covering.
  • the steel converter 1 being tiltable about a not shown horizontal axis blows its gases from the "mouth 2 into the suction hood 4 arranged laterally of the cooling flue 3.
  • the cooling flue 3 is closed at its lower end by a flap 5 and discharges at its upper end 6 into the free atmosphere.
  • the cool-ing flue 3 consists of tube walls 7 through which passes a cooling medium, for instance water.
  • the single tubes of the tube walls 7 discharge at the lower end of the cooling flue into a collecting chamber, or coolant inlet means, 8 and at the upper end into a collecting chamber 9.
  • the tubes are arranged vertically and are fixed by way of fish plates 10 to the collecting chamber 9.
  • the collecting chamber 9 is supported by four rigid tubes 12 arranged at the corners of the collection chamber. These tubes serve simultaneously as downcomer tubes for the cooling medium and to accommodate the total weight of the suspended cooling flue-in compression.
  • the tubes are based with brackets 13 on supports 14 belonging tothe steel construction 15 of the steel work plant.
  • truss girders 16 the downcomer tubes 12 are combined so that a rigid and vibration free support is provided for the cooling flue 3.
  • the downcomer tubes 12 are continued even below the brackets 13 and run along the length of the complete cooling flue 3.
  • an opening 1 7 is provided in one side wall of the cooling flue which opening is formed by a strong tube frame 18.
  • the individual cooling tubes of the tube wall 7 discharge from the top and from below into this tube frame 18 so that the pass-age of the cooling medium is not interrupted.
  • a horizontal gas conduit, not shown in FIG. 1, is connected to the tube frame 18, which conduit is connected by way of a corresponding expansion joint to the same with respect to the thermal expansion of the cooling flue 3.
  • FIG. 3 shows the details of the inventive suspension of the cooling tubes as well as the fastening of insulation and outer jacket.
  • the cooling tubes 19 discharge with their upper tube turns 11 into the upper collecting chamber 9 which is supported by Way of downcomer tubes 12 at any place along the steel construction of the steelwork building.
  • the cooling tubes 19 are fixed to the -collection chamber 9 by way of fish plates 10.
  • the cooling tubes 19 are further on combined in certain distances by angle plates 20 to tube plates. These angle-plates 21) he at the outside of the cooling flue and the covering sheets tween the cooling tubes 19 and the covering sheets 21 and prevented by angle plates 20 from sliding downwards on account of its own weight.
  • the suction hood 4 consists of single hollow plates 24 through which the cooling medium passes, too. At its smooth surfaces the slag incrustation is reduced to a minimum and the same may be easily cleaned at any time.
  • the total weight of the hood 4 is likewise supported by the downcomer tubes 12.
  • special tube constructions 25, 26, 27 and 28 are provided, and through which the cooling medium passes, too.
  • the lance is inserted into the hood 4 and the converter 1 by a cooled connection.
  • the opening 30 in the side wall of the hood 4 allows the insertion of additions during the blow process.
  • FIG. 4 shows, for instance, the upper connection of the hood 4 to the cooling flue in section.
  • For the gas tight seal serves for instance a sheet metal tongue 36 on the collecting chamber 33 engaging moveably int-o a corresponding groove 37 on the hood 4.
  • the sealing of the cooling flue is again effected by way of a covering 21; the sealing of the hood by way of a covering 38.
  • the cooling tubes of this tube wall discharge not into the lower collecting chamber 8 but into the tube frame 39 so that thecooling medium passes from the lower collecting chamber or header 8 through the tube frame 39 into the cooling tubes of the overlying tube wall.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4 fixed thereto.
  • FIG. 2 shows a section through the cooling flue 3 with the suction hood 4
  • the invention is not restricted to the embodiments explained and to the examples shown in the drawings.
  • a cooling flue for hot gases comprising, in combination, a plurality of individual relatively small diameter riser tubes arranged in juxtaposed substantially parallel and upwardly extending relation to form walls defining a gas flow passage; plural relatively large diameter upwardly extending downcomer rtubes arranged at spaced locations extericrly adjacent said walls; an upper header extending around the upper end of said passage laterally exterior to said walls, and communicating directly with and supported solely and directly on the upper ends of said downcomer tubes; said riser tubes having their upper ends communicating with and connected to said upper header; said upper header constituting the sole support suspending said riser tubes for downward expansion; and coolant inlet means connected to and supported by the lower ends of said riser tubes.
  • a cooling flue for hot gases as claimed in claim 1, in which said gas flow passage has a substantially rectangular cross section; there being four of said downcomer tubes each .arranged adjacent a corner of said gas flow passage.
  • a cooling flue for hot gases including a supporting structural steel framework; said downcomer tubes being rigidly supported on said framework.
  • each of said riser tubes having a reverse bend at its upper end connecting the respective riser tube to said upper header.
  • a cooling flue for hot gases as claimed in claim '1, including laterally extending cross members connected to and interconnecting said riser tubes at spaced intervals along their length.
  • a cooling flue for hot gases as claimed in claim 5, in which said cross members have an angular cross section; and a casing for said flue secured to flanges of said cross members.
  • a cooling flue for hot gases as claimed in claim 6, in which said casing is angularly olfset at its points of attachment to said cross members to accommodate thermal expansion.
  • a cooling flue for hot gases including a later-ally projecting suction hood, for entry of hot gases, communicating with said gas flow passage adjacent the lower end thereof; said hood having walls formed by hollow plate-like members communicating with said downcomer tubes for circulation of coolant through said hollow plate-like members.
  • a cooling flue for hot gases as claimed in claim 1,
  • gas outlet in one of said gas flow passage walls adjacent the upper end of said gas flow passage; said gas outlet being defined by a tubular frame in communication with said riser tubes for flow of coolant therethrough between said coolant inlet means and said upper header.
  • said coolant inlet means comprises a lower header extending around the lower end of said passage; and an access opening formed in one of said gas flow passage walls adjacent the lower end thereof and defined by a tubular frame including a portion of said lower header; said tubular frame being connected to said riser tubes and in communication therewith.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Chimneys And Flues (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US239286A 1961-11-21 1962-11-21 Flue for cooling combustible or waste gases Expired - Lifetime US3191583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT879561A AT244370B (de) 1961-11-21 1961-11-21 Kamin zur Kühlung von Gasen, insbesondere von Konverterabgasen

Publications (1)

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US3191583A true US3191583A (en) 1965-06-29

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US (1) US3191583A (de)
AT (1) AT244370B (de)
DE (2) DE1290939B (de)
GB (1) GB1017804A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390666A (en) * 1967-01-16 1968-07-02 Babcock & Wilcox Co Support and guide for large eccentrically loaded fluid cooled duct or hood
US20130199245A1 (en) * 2010-09-01 2013-08-08 Rockwool International A/S Method and an apparatus for making a mineral melt
CN106855223A (zh) * 2017-03-01 2017-06-16 北海新宏恒达机械设备有限公司 鱼粉生产中的热废气冷却器
CN114043117A (zh) * 2022-01-10 2022-02-15 南通苏工阀门有限公司 一种管件生产加工用焊接装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1004518S1 (en) 2019-09-09 2023-11-14 Brunswick Corporation Railing for a marine vessel
USD983120S1 (en) * 2021-04-27 2023-04-11 Brunswick Corporation Railing for a marine vessel
USD981932S1 (en) * 2021-04-27 2023-03-28 Brunswick Corporation Railing for a marine vessel
USD984953S1 (en) 2021-05-03 2023-05-02 Brunswick Corporation Safely railing having buoy holder

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB767034A (en) * 1954-04-26 1957-01-30 Pintsch Bamag Ag Improvements in or relating to metallurgical converter arrangements
US2803450A (en) * 1953-09-29 1957-08-20 Pennsylvania Engineering Corp Converter gas cleaning system
US2831467A (en) * 1953-02-12 1958-04-22 Waagner Biro Ag Apparatus for cooling and utilizing the heat of waste gases
DE972340C (de) * 1953-10-10 1959-07-09 Metallgesellschaft Ag Verfahren und Einrichtung zum Entstauben von Konverter- od. dgl. Ofenabgasen beim Sauerstoff-Frischen von Rohstahl
GB864245A (en) * 1959-03-17 1961-03-29 Pintsch Bamag Ag Improvements in or relating to chimneys for metallurgical converters
FR1261776A (fr) * 1960-07-06 1961-05-19 Herpen Co Kg La Mont Kessel Cheminée refroidie pour convertisseurs
AT221695B (de) * 1960-09-09 1962-06-12 Waagner Biro Ag Mit von einem Kühlmedium durchströmten Rohren ausgekleideter Kamin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831467A (en) * 1953-02-12 1958-04-22 Waagner Biro Ag Apparatus for cooling and utilizing the heat of waste gases
US2803450A (en) * 1953-09-29 1957-08-20 Pennsylvania Engineering Corp Converter gas cleaning system
DE972340C (de) * 1953-10-10 1959-07-09 Metallgesellschaft Ag Verfahren und Einrichtung zum Entstauben von Konverter- od. dgl. Ofenabgasen beim Sauerstoff-Frischen von Rohstahl
GB767034A (en) * 1954-04-26 1957-01-30 Pintsch Bamag Ag Improvements in or relating to metallurgical converter arrangements
GB864245A (en) * 1959-03-17 1961-03-29 Pintsch Bamag Ag Improvements in or relating to chimneys for metallurgical converters
FR1261776A (fr) * 1960-07-06 1961-05-19 Herpen Co Kg La Mont Kessel Cheminée refroidie pour convertisseurs
AT221695B (de) * 1960-09-09 1962-06-12 Waagner Biro Ag Mit von einem Kühlmedium durchströmten Rohren ausgekleideter Kamin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390666A (en) * 1967-01-16 1968-07-02 Babcock & Wilcox Co Support and guide for large eccentrically loaded fluid cooled duct or hood
US20130199245A1 (en) * 2010-09-01 2013-08-08 Rockwool International A/S Method and an apparatus for making a mineral melt
US11034606B2 (en) 2010-09-01 2021-06-15 Rockwool International A/S Method and an apparatus for making a mineral melt
CN106855223A (zh) * 2017-03-01 2017-06-16 北海新宏恒达机械设备有限公司 鱼粉生产中的热废气冷却器
CN114043117A (zh) * 2022-01-10 2022-02-15 南通苏工阀门有限公司 一种管件生产加工用焊接装置

Also Published As

Publication number Publication date
AT244370B (de) 1966-01-10
GB1017804A (en) 1966-01-19
DE1290939B (de) 1969-03-20
DE1401336A1 (de) 1968-10-24

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