US3848344A - Bunker-boiler installations - Google Patents

Bunker-boiler installations Download PDF

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Publication number
US3848344A
US3848344A US00408851A US40885173A US3848344A US 3848344 A US3848344 A US 3848344A US 00408851 A US00408851 A US 00408851A US 40885173 A US40885173 A US 40885173A US 3848344 A US3848344 A US 3848344A
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US
United States
Prior art keywords
bunker
heat exchanger
boiler
gas
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
Application number
US00408851A
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English (en)
Inventor
R Kemmetmueller
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.)
AMERICAN WAAGNER BIRO CO INC US
WAAGNER BIRO AMERICAN
Original Assignee
WAAGNER BIRO AMERICAN
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
Priority claimed from US00279224A external-priority patent/US3795987A/en
Application filed by WAAGNER BIRO AMERICAN filed Critical WAAGNER BIRO AMERICAN
Priority to US00408851A priority Critical patent/US3848344A/en
Priority to AU74285/74A priority patent/AU480521B2/en
Priority to AT825574A priority patent/AT352075B/de
Priority to DE2448904A priority patent/DE2448904C3/de
Priority to FR7435453A priority patent/FR2248480B1/fr
Priority to CA212,094A priority patent/CA1033572A/en
Priority to GB4592974A priority patent/GB1449386A/en
Priority to BR8905/74A priority patent/BR7408905D0/pt
Publication of US3848344A publication Critical patent/US3848344A/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B39/00—Cooling or quenching coke
    • C10B39/02—Dry cooling outside the oven

Definitions

  • An apparatus for cooling a hot material in bulk such as hot coke limestone, sinter, etc.
  • the apparatus includes an upright bunker having a top end for receiving the material such as hot bulk material and a lower discharge end through which the material is discharged after being cooled.
  • a number of fans may be provided for creating a path of gas flow upwardly through the interior of the bunker and downwardly along the exterior thereof for continuously circulating a cooling gas upwardly through the bulk material in the bunker to extract heat therefrom while cooling the latter material so that the material is discharged from the bunker in a cooled condition.
  • a number of heat exchangers and/or boilers are situated at the exterior of the bunker but in the immediate vicinity thereof, these heat exchangers and/or boilers being distributed about the bunker, and the several heat exchangers and/or boilers communicate with the top end of the bunker to receive the heated gas therefrom, this gas flowing downwardly along the interior of the heat exchangers and/or boilers to be returned to the inlets of the fans by which the gas in cooled condition is returned to the interior of the bunker to flow again upwardly through the hot bulk material therein.
  • the cooled coke is discharged out of the bunker and delivered to a suitable screening station, for example, while the hot gas delivers its heat to a heat exchanger or the like before being returned to the bunker so as to continuously circulate in this way.
  • installations of the above type must be prepared to continue operation when breakdowns occur. It is never known when part of the equipment will be rendered inoperative because of failures which are unexpectedly encountered, and it is therefore customary for installations of the above type to have standby equipment always on hand to be set into operation when necessary. These factors also contribute to the undesirably high costs involved in conventional installations of the above type.
  • an apparatus for cooling a hot material in bulk such as hot coke
  • an upright bunker means having a top end for receiving the material such as. hot coke and a lower discharge end through which the material is discharged after being cooled.
  • a fan means is provided for creating a path of gas flow upwardly through the interior of the bunker means and downwardly along the exterior thereof for continuously circulating a cooling gas upwardly through the bulk material in thebunker means to extract heat therefrom while cooling the latter material so that the material is discharged from the bunker means in a cooled condition.
  • a plurality of separate heat exchangers and/or boiler units are situated adjacent the bunker means at the exterior thereof from a beam distributed thereabout.
  • FIG. 1 is a schematic sectional elevation of one embodiment of the invention.
  • FIG. 2 is a sectional plan view taken along line 22 of FIG. 1 in the direction of the arrows.
  • FIGS. 1 and 2 there is a vertically extending bunker 200 which receives the hot bulk material as illustrated in order to cool the latter.
  • the material which is cooled in the bunker 200 is hot coke delivered to the bunker from a bucket 202.
  • the bucket 202 receives hot coke from a suitable coke oven and is delivered on a suitable car to a crane 204 which travels along suitable tracks so that the crane after raising the bucket 202 is capable of situating the bucket at the location illustrated in FIG. 1 over the top of the bunker 200.
  • the bucket 202 is closed by a lid 206 so that there is no escape of pollutants to the outer atmosphere and so that the heat energy is retained.
  • the bunker 200 has a top seal 208 which is removed in any suitable way preliminarily to dropping of the coke from the bucket 202 into the bunker.
  • the top seal 208 is removed, the bottom of the bucket 202 is opened in a known way so that the coke charge carried by the bucket 202 will drop into the bunker, and then the empty bucket is returned to receive another load from another coke oven while in the meantime a further bucket has been filled with coke to occupy the position shown for the bucket 202 in FIG. 1.
  • the lid 208 is replaced.
  • the hot coke within the bunker 200 gradually progresses downwardly along the interior thereof so as to reach the bottom sealing assembly 210 which has a gate 212 opened from time to time by the hydraulic structure 214 so that a certain amount of cooled coke will reach the measuring hopper 216 which also has a discharge gate 218 operated from time to time by the hydraulic unit 220. All of this latter structure is supported by a suitable framework as illustrated schematically in FIG. 1.
  • the gate 218 is opened by the hydraulic unit 220, the measured amount of coke in the hopper 216 will be received by a suitable conveyer structure 222 which conveys the cooled coke away from the bunker so that this coke may then be used in a blast furnace, for example.
  • inert gas is circulated upwardly through the hot coke.
  • the tapered bottom wall region of the bunker 200 has a plurality of pipes 224 passing therethrough.
  • the fans drive the inert cooling gas upwardly through the pipes 224 into a gas distributor unit 228 which at its top end has a gas distributor nozzle 230, so that from the latter the gas travels upwardly through the coke in the bunker 200, cooling the coke while the gas itself becomes heated.
  • the gas which flows upwardly beyond the coke in the bunker 200 reaches in the illustrated example four inlets 232 which feed the hot gas into the top ends of a series of heat exchangers and/or boilers 234.
  • the bunker 200 In order to control the flow of gas into the several heat exchangers and/or boilers 234, the bunker 200 carries at its top wall dampers 236 in the form of plates which can be lowered or raised by suitable control structure so as to block the flow of heated inert gas through the several inlets 232 to a predetermined extent which will normally equalize the flow of hot gas into the several heat exchangers and/or boilers 234.
  • Each of the heat exchangers and/or boilers may include banks of coils such as the coils 238 for superheating purposes while lower banks of evaporating coils 240 are also provided.
  • the lowermost bank of coils 240 may serve as a circulation evaporator receiving feedwater from a suitable supply.
  • the several heat exchangers and/or boilers 234 may be used for generating steam for any desired purpose.
  • any one of the heat exchangers and/or boilers can be put out of operation so that it can be inspected and repaired, if necessary, while the other three heat exchangers and/or boilers can remain operative, and in this case the gas damper plate 236 belong ing to the heat exchanger and/or boiler which is not operating is placed in a closed position so that all of the operations in connection with inspection and/or repair of one heat exchanger and/or boiler can go forward without any difficulty with the particular arrangement shown in FIGS. 1 and 2.
  • the inner surface of the wall of the bunker 200 is lined with a suitable refractory lining material 242 so that in this way the bunker is capable of withstanding the high temperatures while at the same time the several heat exchangers and/or boilers 234 operate very effectively.
  • the inert gas entering through the inlets 232 first pass through several cyclone separator units 244 situated at the upper end of each heat exchanger and/or boiler 234.
  • dust is separated from the gas before it progresses down through the several banks of coils, and the separated dust is delivered by a common pipe system 246 to a dust collector 248 from which the dust is discharged as shown by the arrow 250.
  • This dust which is a source of considerable energy since it is easily combustible can be delivered to any desired location where the dust can be burned so as to utilize its energy in this way, for instance, for sinter plants or it can be returned to the coke ovens, or to pelletizing plants.
  • upright bunker means having a top end for receiving the material such as hot coke and a lower discharge end through which the material is discharged after being cooled, fan means for creating a path of gas flow upwardly through the interior of the bunker means and downwardly along the exterior thereof for continuously circulating a cooling gas upwardly through the bulk material in the bunker means to extract heat therefrom while cooling the latter material so that the material is discharged from the bunker means in a cooled condition, and a plurality of heat exchanger and/or boiler means situated at the exterior of said bunker means adjacent thereto and distributed thereabout, said plurality of heat exchanger and/or boiler means respectively having top ends communicating with the top end of said bunker means and bottom ends communicating with said fan means so that the latter draws the gas heated in the bunker means from the top end of the latter downwardly through the plurality of heat exchanger and/or boiler means to be re turned to said bunker means after being cooled in said heat exchanger and/or boiler means.
  • said fan means includes a plurality of separate fan units respectively communicating with the lower ends of said plurality of heat exchanger and/or boiler means and respectively having discharge ends feeding into the lower end of said bunker means, so that a single fan unit draws the cooling gas downwardly through a single heat exchanger and/or boiler means and then delivers the gas from the latter heat exchanger and/or boiler means to the interior of the bunker means.
  • each heat exchanger and/or boiler means includes in its interior heat exchanger assemblies for extracting heat from the gas while cooling the latter and for utilizing the extracted heat for purposes such as generating steam.
  • each heat exchanger and/or boiler means includes a plurality of cyclone separator units for separating dust from the gas prior to flow of the latter downwardly through the heat exchanger and/or boiler means.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Furnace Details (AREA)
US00408851A 1972-08-09 1973-10-23 Bunker-boiler installations Expired - Lifetime US3848344A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00408851A US3848344A (en) 1972-08-09 1973-10-23 Bunker-boiler installations
AU74285/74A AU480521B2 (en) 1973-10-23 1974-10-14 Bunker-boiler installations
AT825574A AT352075B (de) 1973-10-23 1974-10-14 Kuehleinrichtung fuer stueckiges schuettgut
DE2448904A DE2448904C3 (de) 1973-10-23 1974-10-15 Kühleinrichtung für stfickförmige Schüttgüter
FR7435453A FR2248480B1 (de) 1973-10-23 1974-10-22
CA212,094A CA1033572A (en) 1973-10-23 1974-10-23 Bunker-boiler installations
GB4592974A GB1449386A (en) 1973-10-23 1974-10-23 Apparatus for cooling bulk material
BR8905/74A BR7408905D0 (pt) 1973-10-23 1974-10-23 Um dispositivo para resfriar um material aquecido a granel tal como coque quente

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US00279224A US3795987A (en) 1972-08-09 1972-08-09 Cooling or preheating device for coarse or bulky material with heat space recovery equipment
US00408851A US3848344A (en) 1972-08-09 1973-10-23 Bunker-boiler installations

Publications (1)

Publication Number Publication Date
US3848344A true US3848344A (en) 1974-11-19

Family

ID=23618035

Family Applications (1)

Application Number Title Priority Date Filing Date
US00408851A Expired - Lifetime US3848344A (en) 1972-08-09 1973-10-23 Bunker-boiler installations

Country Status (7)

Country Link
US (1) US3848344A (de)
AT (1) AT352075B (de)
BR (1) BR7408905D0 (de)
CA (1) CA1033572A (de)
DE (1) DE2448904C3 (de)
FR (1) FR2248480B1 (de)
GB (1) GB1449386A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024023A (en) * 1976-02-13 1977-05-17 Koppers Company, Inc. Apparatus and method for transferring hot coke to a dry coke cooler
US4050884A (en) * 1976-03-04 1977-09-27 Richard Jablin Slag waste heat boiler
US4264415A (en) * 1978-12-27 1981-04-28 Didier Engineering Gmbh. Apparatus for the dry cooling of coke
US4406747A (en) * 1978-12-23 1983-09-27 Rheinische Braunkohlenwerke Ag Apparatus for the cooling of solid residues of gasification
US4574744A (en) * 1983-12-23 1986-03-11 Firma Carl Still Gmbh & Co. Kg Waste heat boiler system, and method of generating superheated high pressure steam
US4842695A (en) * 1982-01-27 1989-06-27 Krupp Koppers Gmbh Arrangement of a dry cooler for coke
US5033208A (en) * 1989-12-13 1991-07-23 Kabushiki Kaisha Matsui Seisakusho Hopper dryer
US6116898A (en) * 1998-09-16 2000-09-12 Frechette; Gaston Oven having built-in gas biasing means
US20070089295A1 (en) * 2005-10-12 2007-04-26 Babcock-Hitachi Kabushiki Kaisha Installation construction method for boiler facilities
CN108534501A (zh) * 2018-04-04 2018-09-14 福建森德工贸有限公司 一种烘干设备

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101940A1 (de) * 1981-01-22 1982-08-19 Krupp-Koppers Gmbh, 4300 Essen Verfahren zur entstaubung und kuehlung von zur trockenen kokskuehlung verwendeten kuehlgasen
DE3235261C2 (de) * 1982-09-23 1984-08-02 Hartung, Kuhn & Co Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren und Einrichtung zur Nutzung der Abwärme und zur Gewinnung von Wassergas beim Kühlen von Koks
DE3528222A1 (de) * 1985-08-06 1987-02-12 Grochowski Horst Wanderbettreaktor
CN102445084B (zh) * 2010-10-09 2013-11-06 沈阳铝镁设计研究院有限公司 罐式煅烧炉煅后焦冷却装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836605A (en) * 1928-02-29 1931-12-15 Dry Quenching Equipment Corp Coke cooling apparatus
US3022989A (en) * 1954-04-07 1962-02-27 Union Commerce Bank Hydraulic cement process
US3274701A (en) * 1964-03-03 1966-09-27 Kennedy Van Saun Mfg & Eng Stationary circular contact cooler for calcined lime and other materials
US3728230A (en) * 1972-02-07 1973-04-17 Waagner Biro American Indirectly heat exchanging plural gas streams for dry quenching hot coke and drying coal
US3793743A (en) * 1972-08-23 1974-02-26 Waagner Biro American Apparatus for drying coal
US3795987A (en) * 1972-08-09 1974-03-12 R Kemmetmueller Cooling or preheating device for coarse or bulky material with heat space recovery equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1836605A (en) * 1928-02-29 1931-12-15 Dry Quenching Equipment Corp Coke cooling apparatus
US3022989A (en) * 1954-04-07 1962-02-27 Union Commerce Bank Hydraulic cement process
US3274701A (en) * 1964-03-03 1966-09-27 Kennedy Van Saun Mfg & Eng Stationary circular contact cooler for calcined lime and other materials
US3728230A (en) * 1972-02-07 1973-04-17 Waagner Biro American Indirectly heat exchanging plural gas streams for dry quenching hot coke and drying coal
US3795987A (en) * 1972-08-09 1974-03-12 R Kemmetmueller Cooling or preheating device for coarse or bulky material with heat space recovery equipment
US3793743A (en) * 1972-08-23 1974-02-26 Waagner Biro American Apparatus for drying coal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024023A (en) * 1976-02-13 1977-05-17 Koppers Company, Inc. Apparatus and method for transferring hot coke to a dry coke cooler
US4050884A (en) * 1976-03-04 1977-09-27 Richard Jablin Slag waste heat boiler
US4406747A (en) * 1978-12-23 1983-09-27 Rheinische Braunkohlenwerke Ag Apparatus for the cooling of solid residues of gasification
US4264415A (en) * 1978-12-27 1981-04-28 Didier Engineering Gmbh. Apparatus for the dry cooling of coke
US4842695A (en) * 1982-01-27 1989-06-27 Krupp Koppers Gmbh Arrangement of a dry cooler for coke
US4574744A (en) * 1983-12-23 1986-03-11 Firma Carl Still Gmbh & Co. Kg Waste heat boiler system, and method of generating superheated high pressure steam
US5033208A (en) * 1989-12-13 1991-07-23 Kabushiki Kaisha Matsui Seisakusho Hopper dryer
US6116898A (en) * 1998-09-16 2000-09-12 Frechette; Gaston Oven having built-in gas biasing means
US20070089295A1 (en) * 2005-10-12 2007-04-26 Babcock-Hitachi Kabushiki Kaisha Installation construction method for boiler facilities
US7966727B2 (en) * 2005-10-12 2011-06-28 Babcock-Hitachi Kabushiki Kaisha Installation construction method for boiler facilities
CN108534501A (zh) * 2018-04-04 2018-09-14 福建森德工贸有限公司 一种烘干设备

Also Published As

Publication number Publication date
FR2248480B1 (de) 1976-10-22
CA1033572A (en) 1978-06-27
AU7428574A (en) 1976-04-15
BR7408905D0 (pt) 1975-09-16
DE2448904C3 (de) 1980-07-03
FR2248480A1 (de) 1975-05-16
GB1449386A (en) 1976-09-15
AT352075B (de) 1979-08-27
DE2448904B2 (de) 1976-09-09
ATA825574A (de) 1979-02-15
DE2448904A1 (de) 1975-04-30

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