Smoke Escapes Patents (Class 202/263)
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Patent number: 4315804Abstract: The shed or hall for a set of coke ovens defining a door region for supporting a coke transfer carriage, a quenching region for supporting a quenching carriage, and a washer region, comprises a central upright partition disposed between the quenching and washer regions and having its top portion bent about 180.degree. to form a guiding surface communicating with the washer region, a roof supported above the respective regions and accommodating an upper guiding metal sheet and an intermediate metal sheet forming together with the guiding top portion of the upright partition two (2) fume discharging channels communicating respectively with the door region and the quenching region and at the other end, with the washer region.Type: GrantFiled: April 24, 1980Date of Patent: February 16, 1982Assignee: Bergwerksverband GmbHInventors: Kurt Renner, Ernst Langer, Werner Eisenhut
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Patent number: 4314889Abstract: A gas-transfer tube assembly is used to extract charging gases through an orifice in the roof of one coke oven chamber and discharge the gases into an adjacent second coke oven chamber through an orifice in the roof thereof. Each orifice has a riser with an annular water seal normally closed by a removable cover. The gas-transfer tube assembly includes downwardly-extending tubular end portions with elbow parts that are selectively connected together by a straight mid-section used to change the spacing between the downwardly-extending end portions. The gas-transfer tube assembly is supported for vertical movement on a car that runs along a monorail supported by buckstays. The car is stabilized by rollers at the top of the car to engage a rail.Type: GrantFiled: April 24, 1980Date of Patent: February 9, 1982Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
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Patent number: 4312713Abstract: An improved duct system is provided for collecting gases from the coke side of a battery of coke-oven chambers with vertical flues in which a coke guide is mounted for movement along the ovens on rails, in which the coke transport car is mounted for movement on rails along the ovens adjacent the coke guide, and in which a stationary main collection duct with a belt covered slot is provided adjacent the transport car rails. An extraction hood is provided for covering the transport car and connecting the discharge end of the coke guide with the transport car. The hood has an integral connecting line adapted to be connected between a gas collection duct above the coke guide and a gas transfer device movable on the main duct under the belt for directing the gases into the main duct. Also integral with the extraction hood are two gas outlet ducts, one on each side of the connecting line, separate from the connecting line, for connecting the extraction hood to the gas transfer device.Type: GrantFiled: January 16, 1980Date of Patent: January 26, 1982Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Georg Mayer, Horst Schroter, Helmut Laux
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Patent number: 4294663Abstract: A method of quenching coke and scrubbing the resulting gases is disclosed in which a supply of hot coke is placed in an enclosed tower having an open top and subjected to water deposited on it from above. The water is first passed through at least one layer of a liquid gas contact body formed of corrugated sheets of material arranged with the corrugations in each adjacent sheet crossing each other. This water passes in countercurrent relation to the gases rising from the quenched coke and, as a result, particulate matter, liquid drops and water-soluble vapors in the gases are removed in the contact body. The gases passing from the contact body are then passed through a mist-eliminator structure to remove water droplets therefrom.Type: GrantFiled: June 18, 1980Date of Patent: October 13, 1981Assignee: Munters CorporationInventor: Richard P. Tennyson
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Patent number: 4287024Abstract: A plurality of sole flue-heated, non-recovery coke ovens constructed in side-by-side relation in a battery have their chimney uptake outlets connected to a common combustion tunnel extending longitudinally of and above the battery and connected to stacks at spaced intervals along its length. Each oven has a bypass flue directly connecting the top of its coking chamber to the combustion tunnel, and a normally closed valve in each bypass is operable to selectively connect the coking chamber to the tunnel to permit charging gases to be drawn from the chambers to be burned in the tunnel and stack. The bypass valve is closed during coking so that the partially burned gases from the crown of the coking chambers are led through downcomers in the oven walls to the sole flues where a controlled amount of combustion air can be admitted to promote the continued burning process and provide maximum heat in the sole flues.Type: GrantFiled: June 22, 1978Date of Patent: September 1, 1981Inventor: Buster R. Thompson
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Patent number: 4283253Abstract: An improved coke oven battery and an improved method for production of coke and byproducts are provided. The filling gas escaping during the filling of the oven chambers with coal is initially rendered inert by admixing flue gas. Then the resulting gas mixture of filling gas and flue gas is withdrawn via a conduit fed with flushing liquor from the coke oven gas off-take main and is added to the raw coke oven gas after the coke oven gas off-take main. The tar and coal containing flushing liquor coming from the filling gas conduit is fed back to the coke oven gas off-take main after removal of the tar.Type: GrantFiled: September 18, 1980Date of Patent: August 11, 1981Assignee: Krupp-Koppers GmbHInventors: Joachim Polenz, Hans Wagner
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Patent number: 4282068Abstract: In the process of transferring coke from a coke oven chamber in a battery of coke ovens to a quenching car, the coke is quenched by a water spray from above. The resulting steam is collected in a hood located above and movable with the quenching car and is either exhausted from the hood and conveyed to a condenser or is condensed in the hood with the condensate being collected, cooled and recirculated to provide the water for the quenching and condensing sprays. The apparatus and method of this invention provides for transferring and quenching the coke without emitting harmful gases and dust to the atmosphere.Type: GrantFiled: December 28, 1979Date of Patent: August 4, 1981Assignee: Didier Engineering GmbHInventors: Claus Flockenhaus, Manfred Galow, Joachim F. Meckel, Horst G. Joseph
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Patent number: 4274924Abstract: A method of cooling and dedusting degasification gases which escape from coal degasification chambers particularly gases which are obtained in high temperature or low temperature carbonization of bituminous and subbituminous coals and which pass from degasification chambers through risers and bends into collection mains and in the bends or in the collecting mains themselves which comprises directing crude tar having a temperature in excess of 50.degree. C. and lower than 170.degree. C. into the bends and collecting mains either alone or with water added which has a temperature and is of a quantity such that it completely evaporates in the collecting main.Type: GrantFiled: June 8, 1979Date of Patent: June 23, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Horst Dungs, Franz Beckmann, Hugo Schmauch, Karl-Heinz Flasch
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Patent number: 4274923Abstract: Method and apparatus for extruding incandescent coke from a coke oven and for quenching the coke prior to transport thereof from the point where extruded. The method and apparatus include enhanced air pollutant emission control characteristics. The apparatus includes an inverted, truncated-pyramid container cradled within the frame of a vehicle similar to that used to transport molten metal. Prior to coke extrusion the vehicle permits indexing of the container under the plane through which the extruded coke falls so as to receive all of such extruded coke. While indexed and immobile, the container is adapted to mate with a correspondingly indexed hood having emission control means adapted to be operable during both the extrusion and quenching of the coke at the indexed position of the container/hood. Use of the present invention, in comparison to the prior art, further minimizes the escape of uncleaned, air pollutant-emitting fume, both by virtue of combustion suppression and exhaust gas cleaning.Type: GrantFiled: February 22, 1979Date of Patent: June 23, 1981Assignees: Republic Steel Corporation, The Hanna Furnace CorporationInventor: Kevin D. Mahar
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Patent number: 4260458Abstract: A coke oven, comprises a housing having an interior vertically elongated coke oven chamber with a plurality of vertically extending binding walls subdividing the oven chamber into a plurality of heating flues. A nozzle in each of the binder walls between the heating flues discharges a rich gas into each flue. In addition, the binder walls contain respective first and second vertical air ducts arranged in alternate binder walls between the flues with alternate ones of the air ducts having discharges at one or more levels above the others of each binder duct wall and connecting into the flues on each side of the associated binding wall. An air duct supply is connected separately to the alternate ones in each of the other air supply ducts.Type: GrantFiled: November 30, 1978Date of Patent: April 7, 1981Assignee: Firma Carl Still RecklinghausenInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
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Patent number: 4257849Abstract: A coke guide fumes control system includes a hood overlying a coke guide and apparatus for continuously evacuating the hood during a coke pushing operation. Several types of apparatus are illustrated. Some types are self-contained, including blowers and filter mechanisms mounted on the coke guide hood. The fumes and dusts from the pushing operation are evacuated through the filter mechanism under suction established by the blower, and the purified air pulled through the blower is exhausted to atmosphere. Alternatively, the hood can include slot-like nozzles cooperating with the blower to generate an air curtain which is directed down the sides of the coke guide to prevent the escape of contaminants through openings typically provided in the sides of such coke guide.Type: GrantFiled: March 12, 1979Date of Patent: March 24, 1981Assignee: Envirotech CorporationInventors: Pramodh Nijhawan, Joseph M. Duckworth
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Patent number: 4248671Abstract: A system and method are provided for dry quenching coke while simultaneously eliminating pollutants emitted during coke pushing and quenching operations. The method includes pushing the hot coke from a coke oven into a hooded, mobile coke quench car, drawing the pollutants emitted during the push downwardly through the hot coke contained in the quench car to oxidize the pollutants and produce an inert combustion gas, cooling the hot inert gas and utilizing the heat recovered from the gas, cleaning the cooled inert gas, and returning the cooled cleaned inert gas to the quench car for further passage through the hot coke.Type: GrantFiled: April 4, 1979Date of Patent: February 3, 1981Assignee: Envirotech CorporationInventor: John Belding
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Patent number: 4247370Abstract: A coke oven fumes control system includes a duct-and-car arrangement extending alongside the coke oven quench car track. The car of the duct-and-car system supports a hood movable into overlying relation with a selected portion of the quench car. An additional hood overlies the coke guide. A system of connecting ducts connects the coke guide hood through the quench car hood to the car of the duct-and-car arrangement, thereby providing evacuation of both the quench car hood and the coke guide hood. The quench car hood is divided into a plurality of sectors. Butterfly valve dampers are provided for controlling evacuation of the various sectors of the quench car hood, as well as the coke guide hood.Type: GrantFiled: March 12, 1979Date of Patent: January 27, 1981Assignee: Envirotech CorporationInventors: Pramodh Nijhawan, Joseph M. Duckworth
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Patent number: 4247365Abstract: A method of cooling and dedusting degasification gases which escape from coal degasification chambers particularly gases which are obtained in high temperature or low temperature carbonization of bituminous and subbituminous coals and which pass from degasification chambers through risers and bends into collection mains and in the bends or in the collecting mains themselves which comprises directing crude tar having a temperature in excess of 50.degree. C. and lower than 170.degree. C. into the bends and collecting mains either alone or with water added which has a temperature and is of a quantity such that it completely evaporates in the collecting main.Type: GrantFiled: December 16, 1977Date of Patent: January 27, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Horst Dungs, Franz Beckmann, Hugo Schmauch, Karl-Heinz Flasche
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Patent number: 4244785Abstract: Charging gases from each coking chamber in a battery of coke ovens are withdrawn through a closable ascension pipe into only a first gas main. The gases liberated during carbonization of the coal charge in each oven chamber are withdrawn through a closable ascension pipe into only a second gas main throughout the remainder of the carbonization process. The gases in each gas main are sprayed with flushing liquor. Gases are continuously transferred from the second gas main through pipes into the first gas main to equalize the gas pressure within the gas mains. Flushing liquor removed from the first gas main is processed to remove the tar content therefrom and to provide a clear flushing liquor which is used to spray charging gases within the first gas main.Type: GrantFiled: June 21, 1978Date of Patent: January 13, 1981Inventor: Lewis Alderman
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Patent number: 4238292Abstract: An apparatus for withdrawing and cleaning emissions of a battery of coke ovens, which emissions occur during the filling, coking, especially within the region of the doors, and during the pushing. The battery of coke ovens includes a charging larry with a withdrawal device for the filling gases. This battery is provided with suction conduits located on both sides of the battery and above the doors, while extending in the longitudinal direction of the battery. Connected to the suction conduits are collecting chambers for dust laden gases which rise within the region of the doors. A coke quenching car is displaceable substantially parallel to the battery. The coke quenching car has associated therewith a collecting hood which extends over the coke quenching car and which is provided with a withdrawing device for dust laden gases and vapors.Type: GrantFiled: August 14, 1978Date of Patent: December 9, 1980Assignee: WSW Stahl- und Wasserbau GmbHInventor: Wilhelm Stog
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Patent number: 4233889Abstract: A track which forms a gas throughflow duct. The track is of the type adapted for guiding a movable gas passage unit therealong in sealing cooperation with the gas throughflow duct. The track includes a plurality of structural girders disposed in abutting relationship and a plurality of lateral sections which are readily connectable with the girders to depend therefrom in pairs. A plurality of interengaging sealing sections are readily joined to the lateral sections, and these sealing sections are adapted to engage the movable gas passage unit to allow the unit to be moved along the track while maintaining the seal. The lateral sections extend longitudinally to either side of joints between the structural girders. Thus, the lateral sections contribute to effecting interconnection of the girders to each other.Type: GrantFiled: December 15, 1978Date of Patent: November 18, 1980Inventor: Bill P. P. Nederman
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Patent number: 4231845Abstract: Injection of steam into the ascension pipe of each coking chamber in a coking plant is continued for a period of time after charging of that chamber so as to create a slightly sub-atmospheric pressure in the chamber during the initial stage of the coking process, in order to reduce leakage of gas and fumes to the atmosphere past the doors and filling openings. A time clock operated by the coke pusher machine or by the coal charging machine stops this injection of steam after a desired period of time.Type: GrantFiled: June 18, 1979Date of Patent: November 4, 1980Assignee: Hoogovens Ijmuiden, B.V.Inventors: Timen Vander, Nicolaas J. Thijssen, Jan F. de Blok, Jan Middel
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Patent number: 4224111Abstract: An exit air duct for the discharge of gases produced in coke-ovens, provided with a collection duct which on its top side has a slot extending parallel thereto. A box-like superstructure that extends parallel to the collection duct adjoins the wall thereof on either side of the slot and has an open top side and underside. The top side of the superstructure carries a guide for a flexible cover belt which serves to seal the top side and which can be lifted off locally to admit the gases. An upper grate is located in the superstructure on the top side thereof and consists of screen plates extending transversely to the superstructure. Additionally, an air duct is formed in the superstructure below the guide and the grate and extends parallel to the superstructure.Type: GrantFiled: September 5, 1978Date of Patent: September 23, 1980Inventor: Gunther Rozas
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Patent number: 4213829Abstract: This invention relates to an improved hood for transfer of coke which prevents binding of the retractable section when it is raised or lowered. The outer surface of the fixed hood section is of circular arc-shape and has at least one track extending therealong. A wheel assembly on the retractable section engages the track so as to guide the retractable section concentrically over the fixed section and prevent binding. Preferably the wheel assembly is outboard of the upper edge of the retractable section. A device is then provided to exert force on the wheel assembly toward the track so as to retain contact between the wheel and track as the retractable section is raised.Type: GrantFiled: June 4, 1979Date of Patent: July 22, 1980Assignee: United States Steel CorporationInventors: Donald L. Friend, John A. Grosko, Richard B. Liniger, II
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Patent number: 4213827Abstract: A method and apparatus for quenching coke which obviates the necessity of using a high energy scrubber for the cleaning of the gases by virtue of quenching the coke in a non-oxidizing atmosphere to drop the temperature of the coke below its ignition point for eliminating the emissions of hydrocarbons, confining the steam and vapor for additional quenching and pressure buildup, cleaning of the steam and vapor of particulate matter, and containing the excess quench water including the breeze resulting from the quench.Type: GrantFiled: January 5, 1977Date of Patent: July 22, 1980Inventor: Albert Calderon
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Patent number: 4213489Abstract: A one-spot coke quench car is provided with a coke pile dispersement means to evenly distribute the coke within the car to permit additional coke to be accommodated and as an aid in more uniform quenching. The car has a sloping conduit therein and an exterior water metering valve that is fluidly connected to a pressurized tank of water mounted on the quench car frame. A small quantity (about two gallons) of water is pressurized in the water metering valve which can be opened to allow the small quantity of water to flow immediately and almost instantaneously through the sloping conduit and into the pile of incandescent coke. The water suddenly flashes, explosively, into a large volume of steam, expanding rapidly to disperse the coke within the quench car so that it is more nearly level therein.Type: GrantFiled: January 10, 1979Date of Patent: July 22, 1980Assignee: Koppers Company, Inc.Inventor: George R. Cain
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Patent number: 4213828Abstract: A method and apparatus for quenching coke which comprises the quenching of the coke in a non-oxidizing atmosphere in a chamber during the push to drop the temperature of the coke below its ignition point for eliminating the emissions of hydrocarbons at the source, confining the steam and vapor for additional quenching within said chamber by virtue of pressure build-up, forcing the steam out of said chamber for direction to condensing means, condensing the steam to eliminate the plume, precipitating particulate matter and dissolving condensables, scrubbing the non-condensables for the removal of sub-micron particulate matter, containing the excess quench water and condensate including the breeze resulting from the quenching and condensing and exchanging the heat from the quench water and condensate for heat recovery.Type: GrantFiled: June 7, 1977Date of Patent: July 22, 1980Inventor: Albert Calderon
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Patent number: 4211608Abstract: A process for controlling emissions resulting from hot coke being discharged from an oven of a battery of coke ovens from the beginning of discharge until the time when the coke arrives at a quenching station. The coke from the oven passes through a coke guide and a fume hood into an open-top, one-spot quenching car. The hood covers the car during discharge and is connected to an exhaust system, including a gas cleaning device, which draws air into the hood in an amount sufficient to control emissions and for combustion of the volatile matter and other combustibles emitted from the coke during the time coke is discharged into the quenching car and for a short period of time thereafter. During the movement of the open-top, one-spot quenching car from under the hood to the quenching station, the visible emissions given off by the hot coke are less than 40% opacity.Type: GrantFiled: October 19, 1978Date of Patent: July 8, 1980Assignee: Bethlehem Steel CorporationInventors: Daniel Kwasnoski, Carl R. Symons
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Patent number: 4211612Abstract: A device for collecting emissions rising from a quenching car of a battery of coke ovens which device is displaceable on rails parallel to the battery of coke ovens and a collecting conduit for the emissions of the quenching car. The device includes a withdrawal connection for the emissions which is connectable to desired spots of the collecting conduit. The device also includes a first hood above which there is provided a collector for the emissions which extends in the longitudinal direction of the first hood. At one end of the first hood the collector is provided with a transition or conveying member from the first hood to the collector. This transition or conveying member has associated therewith a pre-adjustable throttle flap.Type: GrantFiled: July 17, 1978Date of Patent: July 8, 1980Assignee: WSW Stahl- und Wasserbau GmbHInventor: Wilhelm Stog
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Patent number: 4207145Abstract: A jumper pipe forms a passageway between the free spaces above coal charges in adjacent coking chambers for the natural flow of relatively cooler coke oven gas from the free space above the coal charge in the most recently charged one of the coking chambers into the free space above the coal charge in the other of the coking chambers to reduce the relatively higher temperature therein. An inert atmosphere is maintained along at least part of the passageway to prevent the flow of coke oven gas essentially during decarburization and the pushing of coke from either of the two adjacent coking chambers. Valve members at opposite end portions of the jumper pipe are moved to at least partially-closed positions to facilitate the maintenance of an inert atmosphere therein. A supply or steam or gaseous nitrogen is used to maintain the inert atmosphere in the jumper pipe. The inert gas prevents the entrance of coke oven gas into a coking chamber while undergoing decarburization.Type: GrantFiled: July 27, 1978Date of Patent: June 10, 1980Assignee: Jones & Laughlin Steel CorporationInventors: Harry D. Hatters, Joseph M. Stoll
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Patent number: 4204912Abstract: A method and apparatus is provided for separating tar from gases leaking from the oven door of a coke oven. At least one gas extraction device is located at a point of leakage and is connected through a collection duct to an extractor fan for sucking the gases from the door. A means is provided for spraying hot ammonia liquor into the upstream portion of the collection duct and a means is provided for introducing saturated steam into the duct downstream of the ammonia spraying means.Type: GrantFiled: November 8, 1978Date of Patent: May 27, 1980Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Fritz Schulte, Wilfried Hurter
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Patent number: 4198275Abstract: A locomotive is provided to move a quench car and a gas transition car parallel to a battery of coke ovens adjacent a coke guide car. A pivotable hood is provided on the guide car for covering part of the charging opening of the quench car. The quench car has generally parallel, pivotal flaps which can operate independently to open a portion of the quench car charge opening beneath the hood as coke is pushed from the guide and through the hood into the car. The flaps on either side of the hood can be held closed to seal the charge opening and prevent escape of the dirty gases out of the quench car. An extraction duct connects the quench car to the gas transition car cooperably connected with a gas collection duct which also runs parallel to the coke ovens and which has an opening running its length.Type: GrantFiled: October 27, 1977Date of Patent: April 15, 1980Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Johann G. Riecker, Klaus Grohmann
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Patent number: 4197164Abstract: A coke oven construction is provided having a vertical ascension pipe connected by an elbow to a gas-collecting main. A water seal is placed between the elbow and the collecting main and carries a stream jet aspirating pump. The seal and pump are movable in and out of position and the pump can be closed off.Type: GrantFiled: June 29, 1978Date of Patent: April 8, 1980Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventor: Erich Pries
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Patent number: 4197163Abstract: A coke oven door for use in the end opening of a coking chamber having a generated gas outlet in its roof includes a plurality of plug sections each made of a hollow shell, preferably metal, having a vent through each side wall extending from the exterior of each section away from the outside of the coking chamber. Means are provided for fastening the sections to the frame in spaced apart relationship so that they can move vertically with respect to the door frame. The generated gases pass through the vents, up the flue formed by the hollow shells, out the top of the flue and into the generated gas outlet.Type: GrantFiled: July 5, 1978Date of Patent: April 8, 1980Inventor: Thomas C. Aikman
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Patent number: 4196054Abstract: A one-spot hopper, provided with means for developing layers of coke therein, of even depth, is pivotally mounted to a frame that is movable alongside the coke side of a coke oven battery. Extendible and retractable covers close, and seal the hopper from the ambient atmosphere. A cylinder-piston means is used to pivot the hopper and dump coke therein through pivoted side plates of the hopper. Means are provided to also close off and seal the coke pushing operation of the coke oven battery from the ambient atmosphere. At least one perforated conduit extends transversely through the hopper, and a perforated shield is disposed in spaced-apart relation above the conduit. Means is provided for flowing a cooling fluid in the conduit. A duct is fitted to the hopper to provide a means for extracting gases and entrained particulate matter emanating from hot coke deposited in the hopper.Type: GrantFiled: October 31, 1977Date of Patent: April 1, 1980Assignee: Koppers Company, Inc.Inventors: Joseph Becker, Jr., Ronald O. McClelland
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Patent number: 4196053Abstract: A hood car having a hood, a coke guide, a coke guide car, and a quench train are all provided for movement parallel to a battery of chamber coke ovens between a quench plant and the ovens. The hood car hood has an opening reaching over the loading area of the quench train and is adapted to be connected through extraction ducts to a gas transition device which is movable on a stationary collection duct alongside the coke oven battery and which has an opening at the top. The opening can be sealed by a flexible cover belt which can be lifted off by the gas transition device. The collection duct is connected to a stationary extraction and purifying device which purifies the dirty gases. The movable hood car and the quench train have coupling means, functional in both directions of movement, for coupling together the hood car and the quench train. The hood car has a brake means for automatically stopping the car upon being uncoupled from the quench train.Type: GrantFiled: October 4, 1977Date of Patent: April 1, 1980Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventor: Klaus Grohmann
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Patent number: 4194951Abstract: An enclosed quenching car movable along a battery of coke ovens and adapted to receive coke from each oven in succession and quench it without polluting the atmosphere. The car includes an enclosure containing a pivotal quenching tank with interior dimensions substantially corresponding to the dimensions of the carbonized coke cake to be accommodated therein. One side of the pivotal tank is formed from a water-permeable grid such that the coke cake within the tank can be rotated into a horizontal plane and the coke completely immersed in water passing through the permeable grid; while dust and gases are extracted without polluting the atmosphere. In this manner, the coke is quenched in such a way that it is yielded in large pieces with a defined uniform water content in the coarse and fine coke.Type: GrantFiled: March 14, 1978Date of Patent: March 25, 1980Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventor: Erich Pries
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Patent number: 4186057Abstract: Equipment for receiving and transporting red-hot coke, pushed out of the oven chambers of a chamber coke-oven with vertical flue, and for extracting and purifying the dust-containing gases rising from the coke. The equipment includes duct means and associated suction means for initially extracting the dust-containing gases from an extractor hood and subsequently from the container collecting the hot coke.Type: GrantFiled: January 31, 1977Date of Patent: January 29, 1980Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Fritz Schulte, Johann G. Riecker
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Patent number: 4173176Abstract: A device for transfer of fresh air or air mixed with gases, vapors, smaller particles etc. in one or other direction between a stationary place and a moving place. A stationary elongated box is in communication with the stationary place and has a slot in its longitudinal direction and said slot closeable by a tightening band bearing on contact surfaces at each side of the slot and on the outside of the box. A hollow connection body projects through and is movable along said slot and is in communication with the moving place. Said connection body is provided with slide shoe or shoes in the slot and carries a press roller at each end of the slide shoe or at each slide shoe pressing the band against said contact surfaces and backing rollers lifting the band from engagement with the contact surfaces.Type: GrantFiled: January 3, 1978Date of Patent: November 6, 1979Inventor: Eric Svensson
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Patent number: 4150701Abstract: A volumetric feeder is supported for movement between an operative position and an maintenance position. The feeder includes a housing having a rotatable blade means adjacent its lower end for feeding granular material from the housing. The blade means is driven by a motor disposed within the housing and enclosed within a shell. Conduit means is provided for supplying cooling air to the motor within said shell.Type: GrantFiled: January 19, 1978Date of Patent: April 24, 1979Assignee: Merrick Scale Mfg. CompanyInventor: Eugene L. Rebucci
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Patent number: 4147595Abstract: A sprinkler for a vent section or part of an ascension pipe of a coke oven which is disposed in the vent pipe of a horizontal coke oven chamber ascension pipe and comprises a sprinkler nozzle body which is a substantially straight pipe and is disconnectably fitted to a hole formed in the vent pipe through a male screw which is formed on an outer wall of the sprinkler nozzle body being screwed to a female screw formed around the hole in the vent pipe. One or more spray holes for spraying water in the radial direction of the axis of the nozzle body are formed at the end of the nozzle body extending into the vent pipe. A male screw, formed at the rear of the nozzle body extending outside of the vent pipe, and a branch pipe, which is branched from the main feed pipe supported on another member equipped on an oven roof, are disconnectably connected by a pipe joint member.Type: GrantFiled: November 23, 1977Date of Patent: April 3, 1979Assignees: Kansai Netsukagaku Kabushiki Kaisha, Ikio TekkoshoInventors: Yukio Masuda, Hiroshi Naoi
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Patent number: 4147594Abstract: A cylindrical drum having a lining spaced apart from the shell of the drum is rotatably mounted on a frame movable on rails along the coke side of a coke oven battery. A fume shield is fixed to the frame and covers openings in the shell and lining through which hot coke passes, when pushed from a coke oven chamber. A hood is fixed to the structure supporting a coke guide and has a movable portion that coacts with the rotatable shell when coke gravitates into the shell. The drum is rotatable to several operative positions.Type: GrantFiled: April 7, 1977Date of Patent: April 3, 1979Assignee: Koppers Company, Inc.Inventors: George R. Cain, Ward F. Gidick, William D. Edgar
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Patent number: 4146435Abstract: An improved dust collecting system for a coke oven employs a bag filter dust collector as a common dust collector for both the coke discharge operation and the coal charging operation. First, the dust spouted out in the coke discharge operation and then successively and alternatingly, the dust spouted out in the coal charging operation and in the coke discharge operation are collected, whereby fine coal particles deposited out in the coal charging step are deposited on the layer of the fine coke particles firstly deposited out in the coke discharging operation. In addition, a combustion chamber is provided for burning the gases and dusts spouted off in the coal charging operation and a pre-dust wet-type collector is utilized therein for preliminary filtering before the same is fed to the common bag filter dust collector.Type: GrantFiled: April 18, 1977Date of Patent: March 27, 1979Assignees: Mitsubishi Chemical Industries, Ltd., Kansai Netsukagaku Kabushiki KaishaInventors: Hajime Ueno, Kentaro Kakumura, Nobukastu Sasaki, Yorito Sato
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Patent number: 4142942Abstract: An improvement made to quenching coke during the push wherein the coke is physically opened for increased exposure to the quenching medium.Type: GrantFiled: September 17, 1976Date of Patent: March 6, 1979Inventor: Albert Calderon
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Patent number: 4141796Abstract: Method and apparatus for receiving and transporting hot coke in a coke oven pushing operation and controlling emissions resulting therefrom comprising a one spot quench car having a receptacle which is tiltable to a coke receiving position, a travel and quench position, and a coke discharging position. A hood structure is provided to confine the gases during pushing and a collecting main removes the gases to a remote location for cleaning thereof.Type: GrantFiled: August 8, 1977Date of Patent: February 27, 1979Assignee: Bethlehem Steel CorporationInventors: Howard E. Clark, Norman D. Hodgson
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Patent number: 4137128Abstract: A battery of horizontal coke ovens which are connected to two gas-collecting mains extending alongside the battery, one of said mains having means for cleaning dust-laden gases emitted from the coke ovens during charging with coal without the use of a flushing liquor and incorporating means for inhibiting the condensation of tar-based matter in the gas. The invention also relates to a method for operating such a battery of horizontal coke ovens.Type: GrantFiled: March 21, 1977Date of Patent: January 30, 1979Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventor: Lewis A. Watson
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Patent number: 4135986Abstract: A generally cylindrical drum of heat stress and corrosion resistant construction, and having an opening therein, is rotatably mounted on a frame movable on rails along the coke side of the coke oven battery. A movable cover is fixed to the shell and covers the opening in the shell through which hot coke passes, when pushed from a coke oven chamber. A hood is fixed to the structure supporting a coke guide and has a movable portion that coacts with the rotatable shell when coke gravitates into the shell. The drum is rotatable to several positions. Means are included to quench the hot coke and to extract the particulate laden steam which is generated by the quenching operation. Additional means are included to remove noxious gases and particulate matter which emanates from the hot coke.Type: GrantFiled: January 24, 1978Date of Patent: January 23, 1979Assignee: Koppers Company, Inc.Inventors: George R. Cain, Ward F. Gidick, William D. Edgar
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Patent number: 4133721Abstract: Coke oven emission control system comprising a traveling hood for collecting the emissions arising from the quench car into which hot coke is pushed from the coke ovens. The hood has a U-shaped snorkel at the top of the hood extending longitudinally of the hood, which connects to an exhaust duct via a water trough. Within the hood are a number of nozzles which are adjusted to provide a fogging mist of atomized water particles at the time a coke oven is "pushed" which cools the emissions which rise from the quench car and thereby reduces their volume as they flow into the exhaust duct. In a modification, a venturi type scrubber in the snorkel tube serves to separate the particulates, and cool the gases as they flow to the exhaust duct. In a further modification, high pressure jets are mounted on the snorkel tube within the water trough to agitate the particulates and solids on the bottom of the water trough to assist in their removal by draining from the trough.Type: GrantFiled: July 25, 1977Date of Patent: January 9, 1979Assignee: Wilputte CorporationInventor: Roy Naevestad
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Patent number: 4130463Abstract: Apparatus for connecting two otherwise coupled railroad vehicles in gaseous flow communication comprises first and second ducts each mounted respectively at one end to one of the railroad vehicles, first and second coupling ducts each mounted respectively at an opposite open end of the first and second ducts to pivot about a vertical axis with one end enclosed in its respective duct and with a second end extending out from its respective duct, first and second frame members each mounted respectively at the second end of the first and second duct and having a mating surface circumferentially surrounding the second end, and first and second biasing means to extend between the respective pair of duct and coupling duct to urge the second end away from its duct and maintain the respective mating surfaces in abutting and sliding engagement one with the other.Type: GrantFiled: August 10, 1977Date of Patent: December 19, 1978Assignee: Envirotech CorporationInventor: Samuel N. Klavir
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Patent number: 4123333Abstract: Equipment for exhausting gases from a collecting device including an outer collection duct having longitudinal openings covered by a flexible belt. The collecting device is shifted along said duct while lifting the belt off the collection duct. Located within the outer collection duct is a longitudinally extending arcuate member defining on its side opposite to said belt an inner collection channel for directing exhaust gases out through the collection channel while preventing contact of said exhaust gases with the belt to prevent deterioration thereof.Type: GrantFiled: February 7, 1977Date of Patent: October 31, 1978Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Fritz Schulte, Johann G. Riecker, Gunther Rozas
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Patent number: 4117773Abstract: An improved trunking system is provided for ventilation systems in which air or fumes are to be supplied to or exhausted in adverse environments from travelling equipment such as crane cabs and fume hoods in steel works and coke ovens. The trunking is of self-supporting modular construction, each module having a longitudinal opening, a row of metal strips in end to end interengagement extending from at least one side of said opening so as normally to close the latter, the strips being individually located against longitudinal and lateral movement relative to the opening, and so that the pressure differential between the trunking and the ambient atmosphere tends to bias the strips to positions closing the opening. The trunking includes rails to guide a tap which travels along the trunking in sealing relationship thereto and has roller means locally engaging the flap or flaps to open the latter.Type: GrantFiled: May 5, 1977Date of Patent: October 3, 1978Assignee: Crane Air Trac IncorporatedInventor: William George Johnson
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Patent number: 4113572Abstract: A pollutant collection and removal system is provided for use with a horizontally arranged battery of coke ovens. A receptacle having a coke entry opening is positioned in front of the coke guide and receives the total coke pushed from an oven and a hood carried by the support for the coke guide substantially encloses the coke guide and overlies the coke entry opening and enshrouds the discharged coke and pollutants generated during the coke pushing operation. Means are provided for distributing the coke within the receptacle while said receptacle is being maintained stationary (i.e. one-spot) for quenching and, after the pushing operation, the receptacle is moved from the coke guide and transported to a quenching station.Type: GrantFiled: January 9, 1976Date of Patent: September 12, 1978Assignee: National Steel CorporationInventors: John G. Manda, Joe D. Burroughs, Donald F. Cairns
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Patent number: 4113569Abstract: Retrofit method and apparatus for minimizing the emission of particulate-laden smoke to the ambient atmosphere during the movement of slot-oven-produced, incandescent coke prior to the time it is quenched in an open-topped rail vehicle.A cyclically used, moveable hood is selectively positioned around and over a guide through and from which extruded, incandescent coke drops into an open-top vehicle which concurrently is moving at right angles to the path of the extruding coke. The hood confines potentially air polluting emissions during extrusion. Use is made of the latent heat in the extruded, incandescent coke to make steam out of water introduced within the hood from a plurality of water sprays so as to create a substantial steam atmosphere which envelopes the coke and thereby suppresses combustion when it would otherwise be most extensive. Further, the steam atmosphere is used to screen and protect the apparatus from excessive radiant heat and thereby protect its integrity.Type: GrantFiled: November 28, 1975Date of Patent: September 12, 1978Assignee: Donner-Hanna Coke CorporationInventor: Kevin D. Mahar
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Patent number: 4111757Abstract: Coke from a non-recovery type coke oven is pushed onto a downwardly-inclined floor within a smoke hood joined along one edge of the coke oven. The coke is quenched by water discharge nozzles inside the hood. The coke is discharged through a gate at the bottom edge of the floor onto a conveyor after quenching is completed. The smoke and effluent within the hood pass into the top of two interconnected ignition chambers filled with checkerbrick to incinerate the effluent after which it is drawn from the top of the last ignition chamber into a conduit for discharge by a stack. The ignition chambers include walls isolating the flow spaces for the smoke and quenching fumes from the other flow spaces within checker-filled portions that conduct countercurrently partially-burned distillation products delivered by sole heating flues and downcomers from the space above a coal charge in the coke oven chamber.Type: GrantFiled: May 25, 1977Date of Patent: September 5, 1978Assignee: Pennsylvania Coke Technology, Inc.Inventor: Joseph P. Ciarimboli