US3537957A - Apparatus for the ignition of charging gases produced during the charging of coke ovens - Google Patents

Apparatus for the ignition of charging gases produced during the charging of coke ovens Download PDF

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Publication number
US3537957A
US3537957A US757321A US3537957DA US3537957A US 3537957 A US3537957 A US 3537957A US 757321 A US757321 A US 757321A US 3537957D A US3537957D A US 3537957DA US 3537957 A US3537957 A US 3537957A
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US
United States
Prior art keywords
gas
charging
burner
pressure
coke
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
US757321A
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English (en)
Inventor
Hans Wagner
Folkmar Schwarz
Heribert Wewers
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.)
Raymond Kaiser Engineers Inc
Original Assignee
Koppers Co 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 claimed from DE19671671326 external-priority patent/DE1671326B1/de
Application filed by Koppers Co Inc filed Critical Koppers Co Inc
Application granted granted Critical
Publication of US3537957A publication Critical patent/US3537957A/en
Assigned to RAYMOND KAISER ENGINEERS INC., A CORP OF OHIO reassignment RAYMOND KAISER ENGINEERS INC., A CORP OF OHIO ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KOPPERS COMPANY, INC.
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
    • C10B27/00—Arrangements for withdrawal of the distillation gases
    • C10B27/04—Arrangements for withdrawal of the distillation gases during the charging operation of the oven
    • 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

Definitions

  • the invention comprises a constantly lit pilot light and a gas burner in each exhaust line so that tar mist in the gases produced during charging of coke ovens is burned.
  • the pilot light and burner are supplied with coke oven gas for fuel.
  • the invention relates to coke ovens and more particularly to apparatus for the ignition of the charging gases produced during the charging of coke ovens.
  • These charging gases are laden with dust and tar mist, which result in considerable air pollutions it suitable measures are not taken for their removal.
  • the dust can be removed for the most part by exhausting and washing the charging gases, for which purpose the charging holes of the to-be-charged coke oven are connected via exhaust lines with one or more gas washers.
  • the tar mist cannot be washed out with water or at least not to a sufiicient extent.
  • a possibility for removal of the tar mist consists in burning it. Since the composition of the charging gases and thus its combustibility frequently varies substantially, foreign energy is required to assure a reliable combustion.
  • the invention now proceeds from the concept of using coke-oven gas, which is directly available at the plant, as fuel for ignition of the charging gases and the tar mist contained therein.
  • the invention comprises a gas burner and a constantly burning pilot light in each exhaust line so that coke oven gas supplied to the pilot light and the burner may be ignited at the burner to consume tar products in the gases produced during charging of the coke chambers.
  • FIG. 1 illustrates a flow diagram of the ignition device
  • FIG. 2 illustrates a longitudinal section through the gas burner
  • FIG. 3 illustrates a vertical section through the lower part of the charging pipe and telescopic pipe
  • the gas burner is suitably arranged in the annular space formed by the charging pipe and telecopic pipe (drop sleeve) near the top of the oven and, according to another proposal of the invention, it burns inside a fire tube that sweeps essentially over the entire cross section of the annular space. This assures that all of the accumulating charging gas is burned by the flame of the gas burner and that no gas jets with unburned tar mist can escape.
  • the necessary air for combustion of charging gases and tar mist, respectively is sucked in though an adjustable annular slit between the top of the oven and the lower edge of the telescopic pipe.
  • coke-oven gas flows through the pipeline 1, provided with the main cutoff valve 2, to the compressor 3, which is driven by a three phase motor 4.
  • the gas compressed for example to 15 atm., flows into pressure cylinder 6 through check valve 5, which prevents a backflow of gas when the compressor stops.
  • the pressure cylinder 6 is protected against inadmissible excess pressure by safety valve 7. Any escaping gas flows through line 8 to the excess gas burner and then into the atmosphere.
  • the manometer 9 locally indicates the gas pressure of cylinder 6.
  • the pressure controller 10 disconnects the compressor when the maximum pressure is reached, and again connects it when the set minimum pressure prevails.
  • Manual valve 11 serves to discharge any condensates in the pressure cylinder.
  • the gas that is heated during compression is cooled by means of air after the 1st and 2nd steps of the compressor, which is stationarily arranged, as is pressure cylinder 6.
  • Coke-oven gas flows through flexible connection (high pressure hose) 16, manual valve 17, check valve 18, and pipeline 19 into the pressure cylinder 20 on the larry car.
  • the check valve 18 prevents a backflow of gas when the coupling lock is open since manual valve 17 normally remains open.
  • a manometer 21 locally indicates the pressure of the cylinder.
  • the pressure cylinder 20 is protected against intolerable excess pressure by safety valve 22. When the latter responds, the gases flow through the line 23 to the excess gas burner and into the atmosphere.
  • a manual valve 24 is also provided on the pressure cylinder to discharge condensates.
  • the gas flows through line 25 to pressure reducer 26, where the variable preliminary pressure of the gas, e.g., in a range between 2 and 15 atm., is adjusted to about 1 atm.
  • the manometer 27 indicates this last cited pressure.
  • the gas required for the pilot-light burners 33 is withdrawn before the solenoid valve 28 of the main gas line 29.
  • a pressure reducer 34 reduces the prevailing gas pressure from 1 atm. in the present case to 0.03 atm. for example.
  • a gas valve 35 is also provided as a cutoff means and for the additional regulation of the pressure. The set minimum pressure of the gas can be read locally on the manometer 36.
  • Line 37 conducts the gas through the distributing lines 38 to the pilot lights.
  • the gas for the pilot lights is branched 01f be fore the magnetic valve, the gas is on constantly here.
  • the pilot lights are ignited once by hand and then remain on constantly.
  • the pilot lights ignite the coke-oven gas burners, which are supplied with gas through the magnetic valve 28 during this time.
  • FIG. 2 illustrates the design of the gas burner. It shows how the coke-oven gas line 30 discharges at the gas burner, which is surrounded by a tubular inert 40 provided with air holes or slits 39.
  • the gas burner receives additional air for combustion through an annular slit 41 between the Wall 42 of the burner and an annular plate 43 fastened on the insert 40.
  • the pilot-light burner 33 is arranged at an angle to the axis of the gas burner and in back of the gas burner in the direction of flow of the gas.
  • Coke-oven gas is supplied to the pilot light 33 by line 38.
  • the pilot-light burner also receives air for combustion through holes or slits 44 in its outside wall 45.
  • FIGS. 3 and 4 illustrate the arrangement of the gas burner. It discharges shortly above the oven top 46 into annular space 47, which is formed by charging pipe 48 and telescopic pipe 49 surrounding the latter.
  • the charging gases flow through the annular space 47.
  • the flame produced by the burner enters into the fire tube 50 arranged in front of the burner.
  • the fire tube 50 distributes the gas flame over the cross section of the charging-gas exhaust. This distribution takes place through lateral openings 51 of the fire tube.
  • Annular slit 52 is provided between the oven top and the lower edge of the telescopic pipe to be able to suck in the necessary air for combustion of the charging gases and the tar mist contained therein. This annular slit 52 is adjustable by several spacing screws 53 on the periphery of the telescopic pipe.
  • the distributing lines 30 and 38 are provided with hose connections so that the gas supply lines can follow the motion of the telescopic pipe.
  • the compressor 3 maintains the stationary pressure cylinder 6 below a set gas pressure, for example, between 12 and 15 atm. via a pressure controller 10. When a pressure of 15 atm. is reached, the compressor is automatically disconnected and it is again connected when the gas pressure drops to 12 atm. A supply of compressed gas is assured at the coupling lock at any time.
  • Exhausting of the charging gases and suction of the air for combustion through annular slit 52 are preferably effected by self-priming gas washers, which are also arranged on the larry car and remove theentrained dust from the charging gases. These gas Washers are started before the beginning of the charging process.
  • the telescopic pipes are raised and the revolving feed tables and gas washers are disconnected.
  • the solenoid valve simultaneously closes and shuts off the supply of gas to the gas burners, while gas is constantly supplied to the pilot-light burners through reducing valve 34.
  • the larry car then travels back to the coal tower and the described process is repeated.
  • valve means for starting and stopping the flow of combustible fuel to said burner
  • (b) means coordinated with the stopping and starting of the charging process to actuate and deactuate said valve means.
  • said burner is arranged within said fire tube located in the annular space between said conduit and the coal charging conduit mounted to said larry car.
  • said means for supplying fuel is a first container holding said fuel under pressure andconduit means communicating with said burner and said first container.
  • conduit means adapted to be connected and disconnected to and from said first container for conducting said fuel from said second container to said first container.
  • valve means is a solenoid valve
  • said coordinated means is an electrical switch connected in circuitry with the solenoid valve and with operating mechanism on said larry car.
  • the invention of claim 3 including: (a) means to admit air to said annular space for the combustion of said fuel at said burner.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coke Industry (AREA)
  • Gas Burners (AREA)
US757321A 1967-09-07 1968-09-04 Apparatus for the ignition of charging gases produced during the charging of coke ovens Expired - Lifetime US3537957A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671671326 DE1671326B1 (de) 1967-09-07 1967-09-07 Auf einem Fuellwagen angeordnete Einrichtung zur Zuendung der beim Fuellen von Koksoefen entstehenden Fuellgase

Publications (1)

Publication Number Publication Date
US3537957A true US3537957A (en) 1970-11-03

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ID=5686399

Family Applications (1)

Application Number Title Priority Date Filing Date
US757321A Expired - Lifetime US3537957A (en) 1967-09-07 1968-09-04 Apparatus for the ignition of charging gases produced during the charging of coke ovens

Country Status (4)

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US (1) US3537957A (en(2012))
BE (1) BE720165A (en(2012))
FR (1) FR1577164A (en(2012))
GB (1) GB1175036A (en(2012))

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645854A (en) * 1970-02-26 1972-02-29 Albert Calderon Method in byproduct coke oven operation and apparatus for same
US3767536A (en) * 1970-11-04 1973-10-23 Sumikin Coke Co Ltd Dust collecting system in a coal charging operation for coke ovens
US4100033A (en) * 1974-08-21 1978-07-11 Hoelter H Extraction of charge gases from coke ovens
US4137128A (en) * 1976-03-19 1979-01-30 Dr. C. Otto & Comp. G.M.B.H. Battery of horizontal coke ovens and method for operating the same
US4157940A (en) * 1976-03-19 1979-06-12 Dr. C. Otto & Comp. G.M.B.H. Method for operating a battery of horizontal coke ovens
US4360403A (en) * 1975-11-17 1982-11-23 Silka Adolf N Method of charging coke ovens with coal

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB368180A (en) * 1930-07-13 1932-03-03 Still Carl Improvements relating to coke ovens
US2696875A (en) * 1948-11-18 1954-12-14 Selas Corp Of America Stack lighter
US2744384A (en) * 1952-08-09 1956-05-08 United Aircraft Corp Burner construction for high velocity gases
GB778754A (en) * 1955-01-03 1957-07-10 Koppers Gmbh Heinrich Improvements relating to the charging of horizontal coke ovens
US2869631A (en) * 1956-03-28 1959-01-20 Zink Co John Gas burner assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB368180A (en) * 1930-07-13 1932-03-03 Still Carl Improvements relating to coke ovens
US2696875A (en) * 1948-11-18 1954-12-14 Selas Corp Of America Stack lighter
US2744384A (en) * 1952-08-09 1956-05-08 United Aircraft Corp Burner construction for high velocity gases
GB778754A (en) * 1955-01-03 1957-07-10 Koppers Gmbh Heinrich Improvements relating to the charging of horizontal coke ovens
US2869631A (en) * 1956-03-28 1959-01-20 Zink Co John Gas burner assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645854A (en) * 1970-02-26 1972-02-29 Albert Calderon Method in byproduct coke oven operation and apparatus for same
US3767536A (en) * 1970-11-04 1973-10-23 Sumikin Coke Co Ltd Dust collecting system in a coal charging operation for coke ovens
US4100033A (en) * 1974-08-21 1978-07-11 Hoelter H Extraction of charge gases from coke ovens
US4360403A (en) * 1975-11-17 1982-11-23 Silka Adolf N Method of charging coke ovens with coal
US4137128A (en) * 1976-03-19 1979-01-30 Dr. C. Otto & Comp. G.M.B.H. Battery of horizontal coke ovens and method for operating the same
US4157940A (en) * 1976-03-19 1979-06-12 Dr. C. Otto & Comp. G.M.B.H. Method for operating a battery of horizontal coke ovens

Also Published As

Publication number Publication date
FR1577164A (en(2012)) 1969-08-01
GB1175036A (en) 1969-12-23
BE720165A (en(2012)) 1969-02-03

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Owner name: RAYMOND KAISER ENGINEERS INC., OAKLAND CALIFORNIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KOPPERS COMPANY, INC.;REEL/FRAME:004292/0615

Effective date: 19840503