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US3869352A - Pollution-free coke quenching system - Google Patents

Pollution-free coke quenching system Download PDF

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Publication number
US3869352A
US3869352A US218189A US21818972A US3869352A US 3869352 A US3869352 A US 3869352A US 218189 A US218189 A US 218189A US 21818972 A US21818972 A US 21818972A US 3869352 A US3869352 A US 3869352A
Authority
US
United States
Prior art keywords
coke
cavity
vehicle
hood
receiving
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
US218189A
Other languages
English (en)
Inventor
John E Allen
Jr John F Hanley
Frank K Armdur
Frederick G Krikau
Richard S Patton
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.)
Interlake Inc
Original Assignee
Interlake Inc
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 to BE794146D priority Critical patent/BE794146A/xx
Application filed by Interlake Inc filed Critical Interlake Inc
Priority to US218189A priority patent/US3869352A/en
Priority to CA160,896A priority patent/CA998640A/en
Priority to ZA730198A priority patent/ZA73198B/xx
Priority to AU51062/73A priority patent/AU472716B2/en
Priority to DE2302036A priority patent/DE2302036A1/de
Priority to BR73363A priority patent/BR7300363D0/pt
Priority to FR7301392A priority patent/FR2168372B1/fr
Priority to IT47717/73A priority patent/IT976909B/it
Priority to LU66840A priority patent/LU66840A1/xx
Priority to ES410653A priority patent/ES410653A1/es
Priority to GB244673A priority patent/GB1403684A/en
Priority to JP48007120A priority patent/JPS4879802A/ja
Application granted granted Critical
Publication of US3869352A publication Critical patent/US3869352A/en
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
    • C10B33/00—Discharging devices; Coke guides
    • C10B33/003—Arrangements for pollution-free discharge
    • 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
    • C10B39/04—Wet quenching
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/54—Venturi scrubbers

Definitions

  • This invention relates to coke quenching systems and more particularly to a coke quenching system that minimizes emission of gaseous and particulate material during a quenching operation from the point at which coke is delivered from a coke oven to a quench car until the quenched coke is released from the quench car.
  • One particular movable industrial operation producing substantial gaseous and particulate emissions is the quenching of coke prior to its subsequent use in, for example, iron production.
  • the quenching operation is accomplished by pushing an oven load of coked coal into a special railroad type car at a loading point adjacent the coke oven.
  • the gaseous and particulate emission is negligible until the same begins to break up as it leaves the coke guide to drop into the quench car. This operation normally results in the generation ofa substantial quantity of gas of the type that pollutes the air.
  • the filled quench car is then moved to a quenching station wherein the contents of the car are sprayed with water or the like to quench the same.
  • Spraying ofwater on the hot coke results in the generation of a so-called quench cloud comprised of water vapor, gaseous emission from the coke, and various particulate material, and is similarly regarded as an air polluting emission.
  • the exemplary embodiment achieves the foregoing objects through a construction wherein the quench car is provided with a hood partially overlying a generally upwardly open coke receiving cavity. Connected to the hood is a combined draft inducing and scrubbing device so that emissions generated within the coke receiving cavity of the car may be drawn off from the hood to be scrubbed.
  • a twophase jet system is employed as a draft inducing and scrubbing means.
  • the quench car is provided with spray barrier jets which generate a barrier across that portion ofthe coke receiving opening thereof not covered by the hood so as to permit the entry of coke into the cavity but to substantially preclude gaseous emissions from passing out through the opening.
  • the car is provided with fog spray generating means to generate a cooling fog so as to protect hood components from the heat of the coke received in the cavity.
  • the car is provided with quench spray nozzles so that the coke in the car may be quenched during movement of the vehicle thus, (1) avoiding the need for peripheral quenching equipment, and (2) permitting the quenching operation to take place while the coke car is in transit between a coke receiving station and a coke dumping station so as to minimize the time required for a quenching operation.
  • the movable system further includes a demisting means for receiving the scrubbed gases from the two-phase jet system.
  • the de-misting means is operative to recirculate water to the quench nozzles or to a water storage device which. in turn, may supply water to a heater for use in supplying hot water to the two-phase jet system or to the fog and barrier spray nozzles.
  • FIG. 1 is a perspective view of a movable coke quenching system made according to the invention
  • FIG. 2 is a vertical section taken approximately along the line 2-2 of FIG. 1;
  • FIG. 3 is a flow diagram illustrating the interrelation of various components employed in the system.
  • FIG. 1 An exemplary embodiment of a coke quenching system made according to the invention is illustrated in FIG. 1 and is seen to comprise a quench car, generally designated 20, secured to an equipment trailer, generally designated 22, by means of a railroad coupler (not shown) and movable on rails 25.
  • the quench car 20 and the equipment trailer 22 are movable as a unit between a coke receiving station, generally designated 26 and a coke dumping station, generally designated 27. whereat the coke is received in the quench car 20 and thereafter dumped for further use, respectively.
  • a coke receiving station generally designated 26
  • coke dumping station generally designated 27.
  • the coke dumping station 27 will not ordinarily be in the location shown but will be in a non-opposite relation from the coke receiving station 26 as being spaced along the railroad right-of-way defined by the rails 25 a distance dependent upon a particular installation.
  • a donkey engine generally designated 28, may be coupled to the quench car to move both the quench car 20 and the equipment trailer 22 between the aforementioned locations.
  • the equipment trailer 22 mounts an operators cab 29 which may house controls for the entire system, in cluding remote controls for the donkey engine 28, if desired.
  • the equipment trailer 22 mounts a combined draft inducing and scrubbing system, generally designated 20, a water storage tank 32, a conventional de-mister separator 34, a hot water accumulator 36, a hot water heater 38 (FIG. 3), a diesel generator 40 and a multiplicity of pumps 42.
  • the combined draft inducing and scrubbing means is operative to draw gases emitted by coke in the quench car 20 and scrub the same by means of a flexible conduit 44 connected to a hood, generally designated 46, on the quench car 20.
  • the quench car 20 is seen to be mounted on railroad trucks 48 resting upon the rails 25.
  • the car 20 includes a slanted bottom wall 50 terminating in a gate 52 pivotally mounted as at 54, which gate extends along the entire length of the car 20 and which may be moved by any suitable means between the closed position shown in FIG. 2 and an open position whereat coke 56 within the car and resting on the bottom wall 50 may be released therefrom.
  • the car 20 further includes end walls 58 which, in combination with the bottom wall 50 and a side wall 60 located above the gate 52 define a coke receiving cavity.
  • the car further includes a coke receiving opening, generally designated 62 defined by the upper end ofthe bottom wall 50, the left-most portions of the end walls 58 and the left and lowermost corner of the hood 46. The same is arranged so as to receive coke from a hooded coke guide 64 at the coke receiving station 26 and which is associated with a coke oven in a conventional fashion.
  • the hood 46 is in fact an elongated duct formed of one or more sheets 66 of metal configured in the manner illustrated in FIG. 2 and including an elongated opening 68 on the underside thereof and facing the coke receiving cavity of the car 20.
  • the sheets 66 are held in the configuration shown by any suitable connection to a quadrilateral pipe truss 70.
  • the opening 68 in the hood 46 has a plurality of louvers 72 (only one of which is shown) mounted therein on a shaft 74 for pivoting movement between the position illustrated in FIG. 2 wherein the opening 68 is generally closed to a position about 90 from that illustrated wherein the opening 68 is virtually entirely open.
  • the shaft 74 may include lever arm 76 connected to hydraulic cylinders 78 for controlling the position of the louvers 72 connected thereto.
  • the shafts 74 associated with each individual louver may be configured in a telescoping relation andjournaled upon one another as well as by suitable bearings so that the various louvers may be independently operated by respective ones of the cylinders 78.
  • the pipe truss 70 mounts a plurality of spray nozzles on its underside which spray nozzles are generally directed at the coke receiving cavity.
  • a first set of spray nozzles 80 along the leftmost lower edge of the hood are arranged to provide a flat spray, generally indicated by the dotted line 82 to provide a fluid barrier across the coke receiving opening which will allow coke to be received within the cavity from the coke guide 64 but which will substantially preclude the escape of gases and particulate material to the same.
  • nozzles secured to the underside of the hood such as nozzles 84, are adapted to generate a fog spray above the coke receiving cavity for the purpose of minimizing the temperature at the lower side of the hood so that the latter will not be damaged by the high temperature of the coke received within the cavity.
  • spray nozzles 86 are operative to spread large volumes of water about the entire cavity for the purpose of quenching the coke 56 received therein. Water may be delivered to the nozzles 80, 84 and 86 through conduits comprising portions of the pipe truss or, if desired, by conduits separate therefrom.
  • the draft inducing and scrubbing system 30 is seen to comprise a plurality of elongated tubes 90 terminating in frusto-conical tubular sections 92 to establish fluid communication with the conventional demister separator previously identified as 34.
  • the opposite ends of the tubes 90 also terminate in outwardly flared frusto-conical section 94 in which are located two-phase nozzles 96 of conventional construction.
  • the nozzles 96 are adapted to receive hot water at a temperature above the boiling point thereof and per haps as high as 300400 F.
  • a header 100 connected to the duct 44 and to the large ends of the frustoconical sections 94.
  • the emissions from the coke receiving cavity will be captivated by the hood 46 and withdrawn therefrom to be scrubbed within the tubes 90 and then fed to the demister separator 34.
  • the same will, in a conventional manner, emit scrubbed gas through an exit opening 102 and will remove water from the gas stream and return the same to a sump well I04 formed as a conventional part of the de-mister separator 34.
  • the sump well 104 is in fluid communication with the quench nozzles 86 by means of appropriate conduits as well as a pump 106 of any suitable type having a sufficient capacity to deliver the volume of quench water required. If desired, a similar pump 108 may be connected in parallel with the pump 106 to serve as a standby in the event of malfunction.
  • One or more pumps 110 may be operative to withdraw water from the storage tank 32 and, via suitable conduits, direct the same to the fog and barrier nozzles 80 and 84.
  • One or more pumps 112 of a high pressure type may be employed to withdraw water from the storage tank 32 to direct water via conduit 114 to the hot water heater 38 or, via conduit 116, to the two-phase nozzles 96.
  • both streams are recombined at a tee 118 with the stream previously directed to the conduit 114 being heated by the heater 38 and that directed through the conduit 116 being at the temperature ofthe water in the storage tank 32
  • Control of the relative volumes of each stream may be exercised through appropriate operation of valves 120 and 122 so that the temperature ofthe water fed to nozzles 96 may be appropriately controlled.
  • the output of the hot water heater 38 is passed to the hot water accumulator 36.
  • the draft inducing and scrubbing system 30 need be used only but about of the time and through the use of the accumulator 36, a relatively small hot water heater 38 may be used and caused to operate the vast majority or all of the time of each cycle. That is, through the use of accumulator 36, the hot water heater 38 need not be of such size as to heat, to the desired temperature, all of that water passing through conduit 114 necessary to operate the two-phase nozzles 96 at the time the same are actually in use.
  • the accumulator 36 may be provided with a blow off line 124 directed to the storage tank which may be operable to open to relieve excessive pressure within the accumulator 36 as a safety feature. Additionally, the output of the accumulator 36 may be provided with a feedback path including a pump 126 to the input of the heater 38 for use when there is a temporary delay in the cycle so that the entire system need not be shut down.
  • the system further includes the various valves illustrated which may be used for a variety of control purposes that will become apparent to those skilled in the art upon review of the various flow paths.
  • a fuel oil tank 130 may be provided to deliver via a pump 132, suitable fuel oil to the diesel generator 40 and to the hot water heater 38.
  • the diesel generator 40 through appropriate electrical connections, not shown, provides electrical energy to the system for the purpose of operating the various pumps described, as well as control circuits therefor and for any valve that the user of the system may choose to be of the remote control variety.
  • the diesel generator 40 may be omitted in favor of a source of electrical power stationarily mounted with respect to the coke quenching apparatus and delivering electrical power to the same through any of a number of types of conventional electrical connectors as, for example, trolleys, electrified third rails, etc.
  • the invention provides a coke quenching system that is ideally suited for the transitory nature of coke quenching and which maximizes the efficiency of such operations.
  • the system does not require unwieldy, draft-inducing fans for evacuation ofthe hood 46 to thereby overcome the problem attendant the mounting of large fans on movable bases.
  • the recycling of water employed during the coke quenching operation not only conserves cost, but tends to minimize any pollution problem caused by the dumping of water containing dissolved gases or carrying entrained particulate material emitted during the quenching operation. This feature also improves system efficiency in terms of minimizing water storage requirements or the need for periodically refilling the storage tank 32.
  • means defining at least one vehicle having a coke receiving cavity, a coke admitting opening communicating with said cavity and a coke releasing exit communicating with said cavity, and adapted to travel between a coke receiving station and a coke dumping station;
  • means defining at least one vehicle having a coke re DCving cavity, a coke admitting opening communicating with said cavity and a coke releasing exit communicating with said cavity, and adapted to travel between a coke receiving station and a coke dumping station;
  • the coke quench system of claim 2 further includwater storage means on said vehicle means for proing barrier spray means on said vehicle means for gen- Viding Water to Said heater; erating a fluid barrier across said coke admitting openmeans on said vehicle means establishing fluid coming to preclude gases from exiting Said cavity there munication between said de-misting means and 5 through. said water storage means;
  • fog spray means on Sald Vehlcle for generatmg a fog a directed at the interior of said Cavity; within said cavity to protect said hood from heat and means establishing fluid communication between from cokefecelwd m 531d Cav'ty;
  • said de-misting means and said quench spray jets and means mcludmg a P for dfillvermg Water h b li id Separated f gases h b may from said water storage means to said barrier an be subsequently used for the quenching of coke in fog spray means.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Coke Industry (AREA)
US218189A 1972-01-17 1972-01-17 Pollution-free coke quenching system Expired - Lifetime US3869352A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
BE794146D BE794146A (fr) 1972-01-17 Systeme d'extinction de coke non polluant
US218189A US3869352A (en) 1972-01-17 1972-01-17 Pollution-free coke quenching system
CA160,896A CA998640A (en) 1972-01-17 1973-01-09 Pollution-free coke quenching system
ZA730198A ZA73198B (en) 1972-01-17 1973-01-10 Pollution-free coke quenching system
AU51062/73A AU472716B2 (en) 1972-01-17 1973-01-12 Pollution-free coke quenching system
BR73363A BR7300363D0 (pt) 1972-01-17 1973-01-16 Conjunto extintor de coque
DE2302036A DE2302036A1 (de) 1972-01-17 1973-01-16 Koksloeschanlage
FR7301392A FR2168372B1 (xx) 1972-01-17 1973-01-16
IT47717/73A IT976909B (it) 1972-01-17 1973-01-16 Perfezionamento nei sistemi per il raffreddamento rapido di coke
LU66840A LU66840A1 (xx) 1972-01-17 1973-01-16
ES410653A ES410653A1 (es) 1972-01-17 1973-01-16 Perfeccionamientos en sistemas para apagar coque.
GB244673A GB1403684A (en) 1972-01-17 1973-01-17 Coke quenching system
JP48007120A JPS4879802A (xx) 1972-01-17 1973-01-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US218189A US3869352A (en) 1972-01-17 1972-01-17 Pollution-free coke quenching system

Publications (1)

Publication Number Publication Date
US3869352A true US3869352A (en) 1975-03-04

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ID=22814096

Family Applications (1)

Application Number Title Priority Date Filing Date
US218189A Expired - Lifetime US3869352A (en) 1972-01-17 1972-01-17 Pollution-free coke quenching system

Country Status (13)

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US (1) US3869352A (xx)
JP (1) JPS4879802A (xx)
AU (1) AU472716B2 (xx)
BE (1) BE794146A (xx)
BR (1) BR7300363D0 (xx)
CA (1) CA998640A (xx)
DE (1) DE2302036A1 (xx)
ES (1) ES410653A1 (xx)
FR (1) FR2168372B1 (xx)
GB (1) GB1403684A (xx)
IT (1) IT976909B (xx)
LU (1) LU66840A1 (xx)
ZA (1) ZA73198B (xx)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004985A (en) * 1972-09-05 1977-01-25 Koppers Company, Inc. System for quenching hot coke
US4019963A (en) * 1975-10-06 1977-04-26 Envirotech Corporation Coke discharging system
US4104130A (en) * 1976-07-09 1978-08-01 Albert Calderon Coke quenching car
US4113569A (en) * 1975-11-28 1978-09-12 Donner-Hanna Coke Corporation Coke air pollution control method and apparatus
US4133721A (en) * 1976-10-06 1979-01-09 Wilputte Corporation Traveling hood for coke oven emission control
US4194951A (en) * 1977-03-19 1980-03-25 Dr. C. Otto & Comp. G.M.B.H. Coke oven quenching car
US4196054A (en) * 1976-02-19 1980-04-01 Koppers Company, Inc. One-spot coke quenching apparatus
US4213828A (en) * 1977-06-07 1980-07-22 Albert Calderon Method and apparatus for quenching coke
US4213827A (en) * 1977-01-05 1980-07-22 Albert Calderon Method and apparatus for quenching coke
WO1980002148A1 (en) * 1979-04-04 1980-10-16 Envirotech Corp Dry coke quenching and pollution control
US4282068A (en) * 1979-01-02 1981-08-04 Didier Engineering Gmbh Apparatus for the transfer and quenching of coke
US4289584A (en) * 1979-03-15 1981-09-15 Bethlehem Steel Corporation Coke quenching practice for one-spot cars
US4394218A (en) * 1982-01-11 1983-07-19 Baumco Gesellshaft Fur Anlagentechnick Mbh Coke quench car emission control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US809645A (en) * 1904-07-05 1906-01-09 American Blower Co Ventilating apparatus.
US3613333A (en) * 1969-07-17 1971-10-19 Hugh E Gardenier Process and apparatus for cleaning and pumping contaminated industrial gases
US3675400A (en) * 1969-04-21 1972-07-11 Hartung Kuhn & Co Maschf Collecting hood for coke-quenching cars

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US809645A (en) * 1904-07-05 1906-01-09 American Blower Co Ventilating apparatus.
US3675400A (en) * 1969-04-21 1972-07-11 Hartung Kuhn & Co Maschf Collecting hood for coke-quenching cars
US3613333A (en) * 1969-07-17 1971-10-19 Hugh E Gardenier Process and apparatus for cleaning and pumping contaminated industrial gases

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4004985A (en) * 1972-09-05 1977-01-25 Koppers Company, Inc. System for quenching hot coke
US4019963A (en) * 1975-10-06 1977-04-26 Envirotech Corporation Coke discharging system
US4113569A (en) * 1975-11-28 1978-09-12 Donner-Hanna Coke Corporation Coke air pollution control method and apparatus
US4196054A (en) * 1976-02-19 1980-04-01 Koppers Company, Inc. One-spot coke quenching apparatus
US4104130A (en) * 1976-07-09 1978-08-01 Albert Calderon Coke quenching car
US4133721A (en) * 1976-10-06 1979-01-09 Wilputte Corporation Traveling hood for coke oven emission control
US4213827A (en) * 1977-01-05 1980-07-22 Albert Calderon Method and apparatus for quenching coke
US4194951A (en) * 1977-03-19 1980-03-25 Dr. C. Otto & Comp. G.M.B.H. Coke oven quenching car
US4213828A (en) * 1977-06-07 1980-07-22 Albert Calderon Method and apparatus for quenching coke
US4282068A (en) * 1979-01-02 1981-08-04 Didier Engineering Gmbh Apparatus for the transfer and quenching of coke
US4289584A (en) * 1979-03-15 1981-09-15 Bethlehem Steel Corporation Coke quenching practice for one-spot cars
WO1980002148A1 (en) * 1979-04-04 1980-10-16 Envirotech Corp Dry coke quenching and pollution control
US4248671A (en) * 1979-04-04 1981-02-03 Envirotech Corporation Dry coke quenching and pollution control
US4394218A (en) * 1982-01-11 1983-07-19 Baumco Gesellshaft Fur Anlagentechnick Mbh Coke quench car emission control system

Also Published As

Publication number Publication date
JPS4879802A (xx) 1973-10-26
LU66840A1 (xx) 1973-03-19
IT976909B (it) 1974-09-10
CA998640A (en) 1976-10-19
FR2168372A1 (xx) 1973-08-31
FR2168372B1 (xx) 1978-03-03
BE794146A (fr) 1973-05-16
ES410653A1 (es) 1976-01-01
AU472716B2 (en) 1976-06-03
ZA73198B (en) 1973-09-26
DE2302036A1 (de) 1973-07-26
AU5106273A (en) 1974-07-18
BR7300363D0 (pt) 1973-10-25
GB1403684A (en) 1975-08-28

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