Smoke Escapes Patents (Class 202/263)
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Patent number: 4106998Abstract: In a dry type quenching facility for red hot coke wherein an operation pressure at the upper portion of the quenching station is set up within the range of 0 to +10 mmH.sub.2 O, red hot coke is charged into said station under a reduced pressure of 0 to -30 mmH.sub.2 O, to prevent escape of dust and smoke from said station and thereby prevent polluting of the environment.Type: GrantFiled: October 21, 1974Date of Patent: August 15, 1978Assignee: Nippon Kokan Kabushiki KaishaInventors: Yutaka Okada, Kyoji Sasaguri, Kazuo Ishihara
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Patent number: 4105503Abstract: Control of emission from coke ovens during charging. A bank of coke ovens is provided with two gas mains. The first of the gas mains is connected to each of the individual ovens in turn during charging. The second of the gas mains is connected to the bank of ovens during coking. A fluid energized venturi ejector maintains a predetermined level of vacuum at the head of each individual coke oven during charging. Means are provided to automatically reduce the suction provided by the ejector if the level of vacuum exceeds said limit. This means consists of a valve operated by changes in the level of vacuum at the head of the individual oven during charging. The valve connects the second main to the first, thus increasing the gas pressure applied at the throat of the venturi ejector in turn decreasing the degree of vacuum provided by the venturi ejector. The energy for the ejector may be provided by flushing liquor or by a compressible fluid such as steam, air or an inert gas.Type: GrantFiled: July 29, 1976Date of Patent: August 8, 1978Assignee: British Steel Corporation (Chemicals) LimitedInventor: John M. Bruce
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Patent number: 4100033Abstract: Gases formed on charging a coke oven are extracted, burned and washed. A gas-handling system, mounted on a machinery truck of the coke-oven plant, is used. An extractor unit of the system comprises an extractor conduit which is connected to an updraft pipe of a coke oven during charging of the oven. The gas-handling system specifically comprises a combustion chamber shaped and dimensioned to ensure a gas flow at a velocity which does not exceed 10 meters per second. The combustion chamber comprises a heat-retentative lining to ensure that the temperature within the chamber does not fall substantially below the ignition temperature of charge gases between successive charging operations.Type: GrantFiled: April 25, 1977Date of Patent: July 11, 1978Inventor: Heinz Holter
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Patent number: 4096041Abstract: An arrangement adapting a slatted top to a single-spot quench car. The slats are opened and closed in selected groups.Type: GrantFiled: March 10, 1977Date of Patent: June 20, 1978Assignee: United States Steel CorporationInventor: Donald L. Friend
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Patent number: 4096040Abstract: An improved tripper beam arrangement for actuating the slats of a slatted top quench car.Type: GrantFiled: March 25, 1977Date of Patent: June 20, 1978Assignee: United States Steel CorporationInventor: John A. Grosko
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Patent number: 4092222Abstract: A coke dry quenching installation has a cooling chamber having a top charging opening, a travelling crane above the cooling chamber, and a coke bucket on the travelling crane movable to a position above the top charging opening and having a cover thereon. A hopper chute is positioned between the coke bucket and the top charging opening on the cooling chamber and is movable laterally toward and away from a position over the top charging opening, the hopper chute having a bottom opening which when the hopper chute is over the top charging opening is aligned in substantial gas tight alignment with the top charging opening. The coke bucket has a bottom opening which engages in sealing engagement with the top opening of the hopper chute when the coke bucket is lowered toward the cooling chamber by the travelling crane.Type: GrantFiled: January 12, 1977Date of Patent: May 30, 1978Assignee: Nippon Steel CorporationInventors: Seiji Kataoka, Tutomu Shimizu, Kesao Katwuno
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Patent number: 4087333Abstract: A coke oven emission control system comprising a traveling hood for the quench car into which hot coke is pushed from the coke oven. The hood is independently supported by wheels traveling on rails and is of a length to cover the entire length of the quench car. The hood is moved by the movement of the quench car to and from a quench station, through beams at opposite ends of the quench car that are selectively raised and lowered into and out of a position for engagement with the hood. The top of the hood is provided with a central elongate hollow neck which projects upwardly into a longitudinally slotted exhaust duct paralleling the battery of ovens. The slot in the duct has a pair of parallel extending flexible sealing strips which are biased toward sealing engagement with each other across the slot and which separate to seal on the neck of the hood as it slides longitudinally along the duct. Selective communication is thus provided for flow of fumes, gas, smoke, particulates, etc.Type: GrantFiled: May 27, 1976Date of Patent: May 2, 1978Assignee: Wilputte CorporationInventor: Roy Naevestad
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Patent number: 4083753Abstract: A coke quencher car has a movable bed within a hopper that receives hot coke when pushed from a coke oven chamber. The movable bed is first elevated and then lowered to a horizontal position as coke falls into the hopper to more evenly distribute the coke therein. The bed may in some instances be fixed at an angle to the horizontal and in some instances the bed may be articulated and comprise a plurality of sections.Type: GrantFiled: May 4, 1976Date of Patent: April 11, 1978Assignee: Koppers Company, Inc.Inventors: Robert C. Rogers, John D. Sustarsic
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Patent number: 4071414Abstract: A method of smokeless charging of coke ovens with coal charge in which coal is poured into each chamber of the coke oven in two stages: firstly coal charge is loaded into the oven chamber through extreme holes and charging gases liberated during said operation are discharged simultaneously, the loaded coal charge is held within the oven, after which the latter is replenished to capacity with coal charge through central holes, charging of the oven which is next in terms of the charging schedule and replenishing of the preceding one being effected simultaneously.Type: GrantFiled: March 5, 1976Date of Patent: January 31, 1978Inventors: Leonid Nikolaevich Fidchunov, Stanislav Sergeevich Balyk, Adolf Nikolaevich Silka, Nikolai Konstantinovich Kulakov, Leonid Fedorovich Bakhtarov, Alexandr Abramovich Azimov, Vladimir Mikhailovich Davydenko, Nikolai Vasilievich Balitsky, Evgeny Petrovich Likhogub, Gersh Abramovich Dorfman
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Patent number: 4069108Abstract: A gas-collecting arrangement movable from one coking chamber to the next and serving to remove exhaust gases emitted during pushing and/or quenching of coke and during filling of coking chambers with coal, includes a shielding device arranged within the collecting main at a distance from a flexible belt and extending at least across the intake cross-section of the collecting main to separate the gas stream in the main from the flexible belt.Type: GrantFiled: March 24, 1976Date of Patent: January 17, 1978Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventor: Johann Georg Riecker
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Patent number: 4053366Abstract: A construction and design of coke-oven plant to handle fumes occurring in coke-oven plants, particularly those which are emitted during the pressing of coke from a coke-oven, and which subsequently arise from the coke quenching truck during transportation of the coke to the quenching tower. A deflector apron extends downwardly from the roof towards the quenching truck trackway, to trap fumes in the roof space behind the apron. An extractor duct extends lengthwise of the battery close to the roof, and control means establishes progressive communication between the extractor duct and successive regions of the roof space as the quenching truck passes therebetween.Type: GrantFiled: August 20, 1975Date of Patent: October 11, 1977Inventor: Heinz Holter
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Patent number: 4050992Abstract: A housing structure for use with a coke oven battery having a plurality of horizontally arranged ovens with a master gangway extending horizontally alongside the battery and which is provided with a trackway thereon along which a coke cake guide car is movable comprises a housing having a roof which extends outwardly from the gangway. The housing roof structure is located above the height of the coke cake guide car and also overlies a conveyor for the coke which extends alongside the battery adjacent the gangway. The conveyor in most instances is a quenching car or a belt conveyor. The housing structure has a plurality of longitudinally spaced openings corresponding in dimensions and locations to the coke oven openings. The housing also includes an arrangement for the offtake of gas and dust.Type: GrantFiled: September 30, 1975Date of Patent: September 27, 1977Assignee: Firma Carl StillInventors: Carl Otto Still, Walter Dean Aust
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Patent number: 4039394Abstract: A car for receiving, transporting and quenching incandescent coke includes a series of normally closed slats covering the top of the car; they are adapted to open at the coke guide to receive coke. A stationary cam located on or near the coke guide may actuate levers as the car moves, to open the slats directly in front of the coke guide; as the car moves further along, the cam releases the levers and the slats close to minimize pollution of the air from coke combustion. The slats are also opened by a cam track in the quench tower.Type: GrantFiled: March 8, 1976Date of Patent: August 2, 1977Assignee: United States Steel CorporationInventor: Donald L. Friend
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Patent number: 4029551Abstract: The coking installation has a row of coke discharge openings, a coke guide car mounted for travel along the row, a coke quenching car mounted for travel along the row and adapted to receive coke pushed out from the coke discharge openings through the coke guide car, and a suction arrangement for generating suction. A hood structure is mounted for travel along the row of coke discharge openings. The hood is connectable to the suction arrangement and movable into a position extending over the whole breadth but only a fraction of the length of the quenching car. Wind shields are provided on opposite ends of the hood in the region of the lower end of the hood. The wind shields extend horizontally in opposite respective travel directions of the hood and each has a breadth corresponding to the breadth of the hood.Type: GrantFiled: November 24, 1975Date of Patent: June 14, 1977Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventor: Johann Georg Riecker
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Patent number: 4028192Abstract: An apparatus for receiving incandescent coke from respective coke ovens of a horizontally arranged battery of coke ovens, comprises a wheeled carriage which is adapted to move backwardly and forwardly along the battery of coke ovens. A coke cake receiving device is mounted on said carriage and includes a hood portion which is adapted to be aligned with each of the coke ovens upon movement of the carriage to the particular coke oven to be discharged and which also includes means for separating contaminants from the gases which are generated from the coke and for discharging purified gases. The coke hood portion has an openable and closable lateral door for receiving the irridescent coke from the associated oven and for closing the hood thereafter. The coke entering the hood is received by a tank arranged below the hood.Type: GrantFiled: November 26, 1975Date of Patent: June 7, 1977Assignees: Firma Carl Still, Hartung, Kuhn & Co. Maschinen fabrik GmbHInventors: Martin Bender, Johannes Knappstein, Josef Stratmann
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Patent number: 4026200Abstract: Waste gas collecting apparatus comprising an elongate duct or trough having a pair of parallel portions defined by a partition, one portion being enclosed and the other having a top opening. The closed portion is coupled to an exhaust duct. Sealing liquid is introduced in the trough with the level interior of the closed portion higher than the level in the open portion. A bent hollow pipe is introduced into the open portion of the trough, through both portions thereof to terminate above the liquid level in the closed portion of the trough. The opposite end of the pipe is coupled to a source of waste gases. The pipe is mounted on a carriage and the carriage and pipe guided for movement along the length of the trough. The carriage is mounted movably to the trough by a wheel and rail arrangement along one wall of the trough and guided during its movement by a suitable wheel and rail arrangement along the bottom exterior wall of the trough.Type: GrantFiled: January 21, 1976Date of Patent: May 31, 1977Inventor: Bo Lars Einar Lindqvist
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Patent number: 4024025Abstract: This invention relates principally to a method and device for controlling particulate-ladened smoke and gas emissions from the charging ports of a by-product coke oven. This device will clean the coarse particulate matter from the by-product gases resulting from the coal carbonization process thereby permitting higher steam aspiration pressures in the oven off-take pipe which is required to create sufficient negative pressure in the oven chamber and thus prevent the escape of smoke and gas to the atmosphere from the charging ports during the charging of the coal into the oven. This device can be installed on any conventional by-product coke oven by making certain modifications to the oven off-take piping.Type: GrantFiled: March 26, 1975Date of Patent: May 17, 1977Inventor: A. Albert Biss
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Patent number: 4019963Abstract: In a coke quench car having a hood and a draft inducing mechanism or exhaust device, a closure plate apparatus is associated with the coke oven push guide and is positionable with respect to the open side of the quench car so as to substantially close the open side of the car. The gap between the guide and the edges of the open side of the quench car are draft openings through which air is drawn by the draft inducing mechanism to withdraw gaseous and particulate emissions from the coke as it is pushed into the car. The gap confines or concentrates the inflow of air so as to prevent discharge of gaseous or particulate emissions around the hood of the car.Type: GrantFiled: October 6, 1975Date of Patent: April 26, 1977Assignee: Envirotech CorporationInventor: John F. Hanley, Jr.
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Patent number: 4010081Abstract: Substantially horizontal rotary drum system for quenching and cooling coke, the drum having an internal helical conveying vane for moving the coke through the drum upon rotation of the drum, the diameter and the length of the drum and the pitch of the helical vane being such as to convey predetermined amounts of coke through the drum in the time periods required to quench and cool the coke with the drum rotating at speeds which will not cause undue attrition of the coke. Water sprays are arranged at the coke entry end of the drum, screens to drain excess water from the drum are present near the coke delivery end of the drum and a steam exhaust hood closes the coke delivery end of the drum. A conveyor conveys coke away from the coke delivery end of the drum, the hood including enclosure means for the conveyor.Type: GrantFiled: March 14, 1975Date of Patent: March 1, 1977Assignee: National Steel CorporationInventor: Judson W. Martt
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Patent number: 4010079Abstract: Apparatus and process for removing coal dust from gases evolved from coke ovens while they are being charged comprehends a common duct for both charging gas and coking gas leading to a common gas collecting main, means in the duct for spraying the charging gas with a charging liquor to scrub out solid particles therefrom, means in the duct for spraying the coking gas with flushing liquor, and means for withdrawing liquor and solid particles from that duct.Type: GrantFiled: February 19, 1975Date of Patent: March 1, 1977Assignee: Wilputte CorporationInventor: Paul V. Faber
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Patent number: 4009081Abstract: An apparatus for arresting the generation of dust from a coke dry quenching station comprising a dust collecting hood mounted on a traveling crane for transferring to the coke dry quenching station a coke bucket loaded with coke discharged from a coke oven so that the upper surface and the outer side wall of the bucket are enclosed by the dust collecting hood when the bucket is suspended from the crane, a fixed hood permanently arranged above the coke charging hole in the top of the quenching station in such a manner that the upper edge portion of the fixed hood is located adjacent to the lower edge portion of the dust collecting hood to form a practically continued hood, a suction duct attached to the fixed hood at its one end and connected to a dust collector at its other end, a movable chute disposed below the fixed hood so that it alternately changes positions with a lid which closes the coke charging hole of the quenching station, and a flange portion formed on the lower edge portion of the chute and adaType: GrantFiled: November 21, 1975Date of Patent: February 22, 1977Assignee: Nippon Kokan Kabushiki KaishaInventors: Takeshi Ueda, Kunihei Koizumi, Tatsu Otani, Shun-ichi Hironaka
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Patent number: 4004986Abstract: A flue gas collector for coke ovens, particularly regeneratively-heated coke ovens, wherein the base, crown and side walls of the flue gas collector are formed from reinforced concrete in a generally rectangular cross-sectional configuration and are provided with insulating material on their interior surfaces. Additionally, insulating material is disposed between apertures in the flue gas collector and the ends of outlet pipes leading from changeover valves connected to the coke oven regenerators. The insulation is of such nature and thickness so as to insure that the reinforced concrete body of the collector assumes only negligible temperatures throughout, thereby eliminating cracks and leaks in the walls of the collector.Type: GrantFiled: January 30, 1975Date of Patent: January 25, 1977Inventors: Wolfgang Franzer, Hans Adamus
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Patent number: 4004702Abstract: A removable insert is placed in the collar of larry hoppers to restrict the flowing coal to a column having a dimension less than the interior width of the coking chamber and charging hole to provide space for exhausting charging gases.Type: GrantFiled: April 21, 1975Date of Patent: January 25, 1977Assignee: Bethlehem Steel CorporationInventor: Imre Szendroi
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Patent number: 4004985Abstract: A quenching track extends alongside of and away from a coke oven battery, and coke receiving apparatus is movable on the track to a remote location at which supporting structure for the coke receiving apparatus is located. Associated with the supporting structure is conveyor means onto which incandescent coke is discharged from the coke receiving apparatus. Coke on the conveyor means is quenched, and vapors arising from the coke during quenching are conveyed to a stack and are discharged to the atmosphere. Fumes arising from the coke receiving means during discharging of the coke are withdrawn into a gas scrubber and cleaned therein. From the scrubber the cleaned fumes are discharged to the stack and to the atmosphere.Various types of coke receiving means are disclosed, and various types of supporting means and arrangements of conveyors at the remote location are also disclosed.Type: GrantFiled: September 13, 1974Date of Patent: January 25, 1977Assignee: Koppers Company, Inc.Inventors: William D. Edgar, John D. Sustarsic, Allan F. Adamsky
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Patent number: 4001092Abstract: A charging car supports a plurality of hoppers in a manner such that two hoppers for supplying coal to adjacent charging holes are supported one after the other in a consecutive relationship along a line which is generally parallel to movement by the charging car. A conveyor conducts coal from each hopper to a telescopic charging tube which communicates with the charging hole in the roof of a coking chamber. Skirt-like walls enclose the sides of the spaces containing two of the hoppers to conduct smoke and other gases upwardly toward a roof which is supported by stanchions at each side of the battery of coke ovens. In one embodiment, two roof sections extend from the sides of a battery of coke ovens toward the center thereof. Gas-conducting mains receive gases via outlet pipes having control valves from the spaces beneath the roofs.Type: GrantFiled: August 22, 1975Date of Patent: January 4, 1977Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventor: Erich Pries
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Patent number: 3994210Abstract: This invention provides a method and apparatus for exhausting rising fume from a fume-producing apparatus into a hood opening located above but laterally displaced from the fume-producing apparatus. A first jet producing a moving curtain of air is directed generally across the fume-producing apparatus from the side thereof which is remote from the hood, with the curtain at least wide enough to span substantially the whole of the rising fume. A second jet produces a second moving curtain of air travelling generally upwardly toward the hood opening from a position spaced generally beneath that opening. The energy and direction of the first jet and the resultant air curtain are such that, if the second jet were not present, the resultant paths for all portions of the air/fume mixture would traverse the general region between the hood opening and the position of which the second jet originates.Type: GrantFiled: November 24, 1975Date of Patent: November 30, 1976Assignee: Powlesland Engineering LimitedInventor: John A. Davis
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Patent number: 3984289Abstract: A coke quencher car apparatus comprises a receptacle that is similar to a standard quencher car, but having one internal baffle forming coke compartments, and a frame at each end thereof on which is supported metal curtain material. Each curtain is stretchable to cover one of the coke compartments during and after the pushing of coke is completed. The quencher car is connected to a traction car carrying equipment to remove and clean gases arising from the pushed coke in the quencher car and to move the quenching car.Type: GrantFiled: May 14, 1975Date of Patent: October 5, 1976Assignee: Koppers Company, Inc.Inventors: John D. Sustarsic, Ronald O. McClelland
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Patent number: 3981778Abstract: Apparatus for use with a coke oven having a carriageway for a quenching car along a side thereof, which apparatus comprises a hood for covering a quenching car on the carriageway, and a supporting structure which supports the hood solely from that side of the carriageway which is remote from the coke oven.Type: GrantFiled: April 8, 1975Date of Patent: September 21, 1976Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Fritz Schulte, Johann G. Riecker, Martin Bender
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Patent number: 3980008Abstract: A ladle canopy for venting gases during pouring of the molten contents of a furnace into a ladle which includes a frame, a plurality of individual curtain walls depending from the frame and arranged to be received over the ladle, a duct connected to the frame for receiving the gases in the canopy, the duct being releasably connected to a stationary duct system which communicates with a source of reduced pressure, the entire canopy and the associated duct being arranged for pivotal movement with respect to the ladle so that the entire canopy assembly can be swung into and out of ladle covering position.Type: GrantFiled: December 2, 1974Date of Patent: September 14, 1976Assignee: Northwestern Steel and Wire CompanyInventors: Robert W. Martin, Kenneth L. Ernst
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Patent number: 3972780Abstract: An improved method and apparatus for by-product coke oven operation wherein the problems of pollution caused by charging, oxidation of the coke during pushing, transportation of the incandescent coke to a quenching tower and quenching of the coke is eliminated by the evacuation of the gases during charging, by quenching the coke in a closed system during the push so that the temperature of the coke leaving the guide is below its ignition point; the combustion gases created by the charging and the steam and gases generated by the quenching are extracted and cleaned in a centralized dust collection system. The coke being quenched in a sealed system to a temperature lower than its ignition point, eliminates the oxidation thereof and the efficiency of the oven is increased by being able to push in shorter schedules as the necessity for extra coking time now taken to insure that all the green coke is coked, is obviated.Type: GrantFiled: June 14, 1974Date of Patent: August 3, 1976Inventor: Albert Calderon
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Patent number: 3972782Abstract: Apparatus and method for controlling emissions caused by pushing of coke from a coke oven. The apparatus includes an entrapment chamber extending alongside a plurality of ovens for containing the emission. Exhaust means for the entrapment chamber comprises a flow path restriction for accelerating gases leaving the entrapment chamber so that particulates are entrained in the gases and inhibited from settling in the entrapment chamber. Gas velocity is reduced in an expansion chamber downstream from and extending below the level of the flow restriction. The expansion chamber provides a settling region laterally offset from said flow restriction in which particulates fall out of the gases along a settling path whose gravity component is in a direction downstream from the entrapment chamber.Type: GrantFiled: December 4, 1974Date of Patent: August 3, 1976Inventor: James D. Patton
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Patent number: 3968014Abstract: A system for preventing effluents containing coal dust from being emitted from a coke oven upon charging the coke oven with coal. A U-tube mounted on a larry car interconnects the charging oven with a coking oven and an air valve mixes air with the effluents being transferred from the charging oven to the coking oven. A venturi tube is in communication with the coking oven on the side thereof away from the U-tube and has a steam jet therein to provide sufficient draft across the coking oven to draw the effluents. The restriction in the venturi tube accelerates the effluents through the venturi tube to accommodate all of the effluents produced during the charging of the coke oven.Type: GrantFiled: March 29, 1974Date of Patent: July 6, 1976Assignee: Interlake, Inc.Inventor: Frank K. Armour
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Patent number: 3966563Abstract: A coke guide spray system on a coke guide disposed on a track between a row of coke side doors and a coke quenching car, the coke guide including an outer frame mounted on wheels for movement along a coke guide track and mounting on the outer frame a track carrying a coke guide chute provided with wheels engaging the track for movement toward and away from an associated coke side door, a water inlet pipe mounted on the outer frame and connected to a source of water under pressure, a first water spray mounted on the outer frame above the coke guide chute adjacent to the end thereof disposed toward the associated coke quenching car, and a second water spray mounted on the outer frame above the coke guide chute and disposed outwardly with respect to the end thereof disposed toward the associated coke quenching car; another system is provided with a hood housing, an induced draft fan and a condensing spray system, while yet another system is provided with a hood having a mist eliminator tower housing a spray condType: GrantFiled: September 27, 1973Date of Patent: June 29, 1976Assignee: Interlake, Inc.Inventors: Frank K. Armour, Robert P. Winters
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Patent number: 3964977Abstract: An end wall of a horizontally extending coking chamber is provided with an opening through which a reciprocatable leveling rod projects with clearance into the chamber for leveling coal fed thereinto. Channel means communicating at one end with this opening surround with clearance the portion of the leveling rod outside the chamber. Air under pressure is fed into the region of the outer end of the channel means and sucked out from the latter from the region of the one end to thereby prevent gas to pass through the clearance between the rod, the opening in the wall and the channel means to the outside of the coking oven without feeding any of the air into the chamber.Type: GrantFiled: November 5, 1975Date of Patent: June 22, 1976Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventor: Dietrich Haase
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Patent number: 3963583Abstract: A battery of horizontal coke ovens having intermediate walls that divide the ovens into units each consisting of 10-20 oven chambers for the purpose of receiving coal from a charging car displaceable above each unit of oven chambers. The charging car includes a plurality of bins each having an outlet for alignment with one of a plurality of charging holes provided in the roof for each oven chamber. The charging car is transversed along a frame supported by vertical beams extending from the intermediate walls. A conveyor belt is employed to transport coal from a tower to the charging car.Type: GrantFiled: July 2, 1975Date of Patent: June 15, 1976Inventor: Erich E. Pries
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Patent number: 3959086Abstract: A plurality of coke oven chambers is provided with respective filling inlets arranged in a row. A coal conveyor arrangement is located above such row and extends in the direction of the row. The coal conveyor arrangement is provided with a plurality of outlet units spaced from each other along the length of the row. A filling arrangement is operative for conveying coal from the outlet units to the filling inlets. The filling arrangement comprises a hopper movable along the length of the row of filling inlets and provided with a plurality of inlet units arranged to successively register with the outlet units and provided with at least one outlet unit communicating inside the hopper with the inlet units and arranged to register with successive ones of the filling inlets.Type: GrantFiled: July 16, 1974Date of Patent: May 25, 1976Assignees: Bergwerksverband GmbH, Didier Engineering GmbHInventors: Manfred Galow, Heinz Osterberg
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Patent number: 3957591Abstract: A coking oven has an upright wall formed with an opening which is normally closed by a door past which noxious gases escape at least at times. Outwardly adjacent the opening and the wall are formed one or more upright channels having open ends located below and above the level of the opening, respectively, and being so positioned that escaping noxious gases can enter into this channel or these channels. Arranged adjacent the upper open end or ends is a suction conduit provided with apertures through which the gases can be drawn from the channel or channels to be conveyed in the conduit.Type: GrantFiled: May 20, 1974Date of Patent: May 18, 1976Assignee: Hartung, Kuhn & Co., Maschinenfabrik GmbHInventor: Johann G. Riecker
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Patent number: 3955484Abstract: A fixed duct is formed by vertically setting a partition plate virtually in the middle of a duct with a U-shaped cross section composed of two side plates and a bottom plate in such a manner that the lower end of said partition plate is spaced from said bottom plate and by placing a canopy over the space between the upper end of one of said side plates and the upper end of said partition plate. An exhaust pipe is installed through said canopy. A sealing liquid is placed in said fixed duct in such a manner that the level of said liquid is always above the lower end of said partition plate. An S-shaped movable pipe extends from outside the upper end of the other of said side plates into said sealing liquid, further under the lower end of said partition plate, to above the level of part of said sealing liquid covered with said canopy. Said movable pipe freely moves along said fixed duct. Dust is collected at an end of said movable pipe and is sent to a dust collector through said exhaust pipe.Type: GrantFiled: May 1, 1975Date of Patent: May 11, 1976Assignee: Nippon Kokan Kabushiki KaishaInventors: Keijiro Hirahama, Fumio Ogawara, Katsumi Matsuzaki
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Patent number: 3956073Abstract: Coke oven gas collecting apparatus includes separate gas and liquor collecting mains for charging gas and coking gas connected to the standpipe through a rotary vane liquor seal valve.Type: GrantFiled: February 18, 1975Date of Patent: May 11, 1976Assignee: Wilputte CorporationInventors: Walter E. Carbone, Paul V. Faber
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Patent number: 3951751Abstract: A pollutant collection and exhaust system is provided in a battery of coke ovens for removal of atmospheric pollutants from the gases released at the time of discharge of coke from an oven. A coke guide carriage is provided with an exhaust hood which encloses the coke guide and extends over the transfer car thereby enshrouding the discharging coke and resulting fumes and smoke during the discharge operation. The exhaust hood is movable along the length of the oven battery. A stationary exhaust manifold extends along the battery in spaced relation above the oven exhaust hood. The exhaust hood is equipped with connecting means which are adapted to register in coplanar sealing engagement with selected gated openings in the manifold while simultaneously opening the selected gates. Pollutants are exhausted from the discharge site and conducted through the manifold and associated treating apparatus with draft induced by an exhaust means connected to the manifold and treating apparatus.Type: GrantFiled: July 26, 1974Date of Patent: April 20, 1976Assignee: National Steel CorporationInventors: Christopher C. Jakimowicz, Larry C. Jones, Donald D. Raugh
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Patent number: 3945308Abstract: In an exhaust system for removing smoke and pollutant fumes from the area surrounding the discharge of coke from a coke oven in which air, solids, and gaseous pollutants are moved through an exhaust manifold gated at its inlets, through treating apparatus for removing contaminants from the air, with the cleaned air subsequently discharged to the atmosphere, a method and means are provided for maintaining continuous induced draft within the exhaust system. A means for inducing exhaust flow operates continuously between a minimum flow and maximum capacity depending on whether the inlet gates of the exhaust manifold are closed or open, respectively. A flow control damper located at the suction of the means for inducing exhaust flow is controlled to permit the flow inducing means to operate in accordance with its performance curve up to drawing a predetermined maximum amperage.Type: GrantFiled: July 26, 1974Date of Patent: March 23, 1976Assignee: National Steel CorporationInventors: Christopher Jakimowicz, Thomas G. Duford
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Patent number: 3937656Abstract: An enclosure in the form of a shed is disposed to extend along the entire length of the battery of ovens at the coke discharge side thereof. The shed roof rises from the top of the ovens to a shed wall spaced outwardly from the ovens beyond a track for a quench car. The shed wall essentially supports the weight of the shed roof in a cantilever fashion. Within the shed a baffle plate, carried by the shed wall, extends in an upward direction toward the battery of coke ovens. A conveyor is carried by the shed wall along its length for conveying solid particles of coke dropping from the baffle plate onto the conveyor. The shed further includes a pipe for extracting smoke within the shed which occurs when hot coke is pressed out of an oven chamber. The smoke extraction pipe is carried in one embodiment by the shed roof vertically above the baffle plate, in a second embodiment, by the shed wall above the upper end of the baffle plate and in a third embodiment by the shed wall at the lower end of the baffle plate.Type: GrantFiled: May 31, 1974Date of Patent: February 10, 1976Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventors: Erich Pries, Friedrich-Wilhelm Drebes
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Patent number: 3933595Abstract: Apparatus adapted to reduce emissions from the doors of coke ovens and the like includes a separate fume collecting hood positioned above each oven door, manifolds connected therewith and with a suction fan and gas cleaner, a valve in each hood, a series of nozzles for an aspirating fluid spaced along each oven door jamb, supply pipes therefore and a supply main, valves in the supply pipes, a closed coke guide adapted to be positioned against an oven being pushed, and spring-urged means carried by the end of the coke guide adapted to seal the guide to the oven.Type: GrantFiled: June 21, 1974Date of Patent: January 20, 1976Assignee: Wilputte CorporationInventors: Gerome Gordon, Paul V. Faber
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Patent number: 3930961Abstract: A shed encloses a coke wharf onto which hot coke is pushed, the coke cake passing through a coke guide into the shed. Doors in the shed are disposed opposite the coke oven chambers and each door is openable when a coke guide is positioned at an oven to be pushed. Deflector means are located inside the shed at each door that break up and spread the coke onto the coke wharf. Fumes that evolve from the coke on the wharf as it is being quenched are collected in a main. An auxiliary collecting main and hood structure are located above the coke oven doors, whereby effluent arising from coke in the chambers after the oven doors are removed are collected in the auxiliary collecting main and conducted thence into the collecting main.Type: GrantFiled: April 8, 1974Date of Patent: January 6, 1976Assignee: Koppers Company, Inc.Inventors: John D. Sustarsic, Ronald O. McClelland