Valved Patents (Class 202/256)
  • Patent number: 10190052
    Abstract: A device and a method are provided for regulating and controlling individual gas pressure of individual ovens of a coke oven battery, in the case of which a rising-pipe bend projects, preferably from above, into a collecting main. The lower end thereof is associated with an immersion pipe via a water labyrinth seal. The immersion pipe is supported such that it is vertically adjustable by means of an actuator, and an immersion cup is located preferably below the immersion pipe. The rising-pipe bend has arranged therein a sleeve, the lower end of which is connected via at least one conduit to the water labyrinth seal. A water supply for feeding the water labyrinth seal and the actuator are provided at the top, outside the rising-pipe bend. Regulation of the gas pressure is accomplished by different immersion depths of the immersion pipe and the constant water level in the immersion cup.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: January 29, 2019
    Assignee: DMT GMBH & CO. KG
    Inventors: Martin Kirchmeier, Michael Bohn, Manfred Danreiter, Franz Liesewitz, Drazen Gajic
  • Patent number: 8926800
    Abstract: A device for compensating deviations from a coaxial arrangement of components of a regulating organ, said regulating arrangement being comprised of a regulating organ, a crown pipe, and an immersion cup which serve for controlling the gas pressure of a coke oven chamber, with the regulating arrangement being comprised of an immersion cup with a water immersion that seals the gas space of a coke oven chamber versus the gas collecting main and/or plant units downstream, and wherein the height of the water level of the water immersion represents a regulating means to control the gas pressure, and wherein said regulating arrangement is furthermore comprised of an immersion pipe that configures a specially shaped crown pipe at its end submerging into the water of the immersion cup, and that is comprised of a regulating organ to regulate the water level.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: January 6, 2015
    Assignee: ThyssenKrupp Uhde GmbH
    Inventors: Frank Krebber, Kerstin Ueberschaer, Helmut Dobert
  • Patent number: 8491757
    Abstract: A coke oven offtake piping system includes a pipe assembly for conveying coke oven gases from a coke oven to a collecting main, at least one spraying nozzle in the pipe assembly, and a discharge section with a discharge pipe having a discharge orifice. A gate member cooperates with the discharge orifice and is movable along the discharge orifice in order to present a closing surface to the extremity thereof, whereby the opening area of said discharge orifice can be varied for controlling the flow rate to the collecting main. The gate member is a spherical cap with a concave closing surface. The gate member is configured to pivot around a pivoting axis to expose the discharge orifice and to cover the discharge orifice, respectively.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: July 23, 2013
    Assignee: Paul Wurth S.A.
    Inventors: Emile Lonardi, Thomas Hansmann, Stefano Pivot, Maurizio Bisogno
  • Publication number: 20120118721
    Abstract: A device for compensating for deviations from a coaxial arrangement of components of a regulating organ for controlling and regulating the gas pressure of a coke oven chamber includes a water inflow into an immersion cup having a water immersion that seals the free gas space of a coke oven chamber versus the exterior atmosphere. The level of the water immersion represents a regulation to control the gas pressure in the coke oven chamber. The regulating arrangement also includes an immersion pipe which at its end is submerged in the water and at this end forms a specially shaped crown pipe. The regulating arrangement also has a regulating organ to control and regulate the water inflow.
    Type: Application
    Filed: April 27, 2010
    Publication date: May 17, 2012
    Inventors: Frank Krebber, Kerstin Ueberschaer, Helmut Dobert
  • Patent number: 7097743
    Abstract: A method is provided for operating a coke oven battery including many identical coking chambers, a raw gas receiver, and throttle devices arranged in the receiver for individually controlling the gas pressure in the chambers. Each throttle device includes an immersion bucket acted upon by water. Gas lines terminating in immersion pipes in the immersion buckets connect the chambers with the receiver. Throttle devices are employed that include an overflow that can be vertically adjusted by an actuating drive for controlling the liquid level in the immersion bucket. For a coking chamber to which a pressure control device is allotted, the setting signals for the actuating drive allocated to the time pressure curve in the process of carbonizing coal to coke are recorded as a position-time curve. The actuating drives of throttle devices that are allocated to coking chambers without pressure control devices are controlled according to the position-time curve.
    Type: Grant
    Filed: March 23, 2002
    Date of Patent: August 29, 2006
    Assignee: Uhde GmbH
    Inventors: Frank Krebber, Helmut Dobert, Ralf Schumacher, Ulrich Kochanski
  • Patent number: 7094321
    Abstract: A device for controlling the gas pressure in a coke oven chamber, has an immersion cup, to which water is supplied, and with an immersion pipe which is connected to the gas space of the coke oven chamber and terminates in the, immersion cup. The immersion cup has an overflow and a closeable outflow. To control the liquid level, an outflow pipe for water is provided, the inflow-side end of which projects into the immersion pipe and contains casing-side inflow orifices for the inflow of water. Within the outflow pipe is arranged a slide which is open on both end faces and which closes the inflow orifices of the outflow pipe in the longitudinal direction according to the position of said slide and forms a vertically adjustable overflow for the water flowing into the outflow pipe.
    Type: Grant
    Filed: March 23, 2002
    Date of Patent: August 22, 2006
    Assignee: Uhde GmbH
    Inventors: Frank Krebber, Manfred Stier, Helmut Dobert
  • Patent number: 5609731
    Abstract: A process is disclosed for regulating the gas pressure in the retort of a coke oven. Pivotable cup valves arranged in the elbows of the ascending pipe are actuated as throttling members according to the pressure curve resulting from gas formation from the coal to be cokefied. Throttling of each individual retort is effected by varying water supply, thus regulating the extent of submersion in water, and regulation follows actual pressure conditions in the retort of the coke oven.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: March 11, 1997
    Assignee: Bergwerksverband GmbH
    Inventors: Hans J. Giertz, Werner Eisenhut, Friedrich Huhn, Hans J. Hammermann
  • Patent number: 5269886
    Abstract: In a gas dehydration system utilizing glycol in which a condensate skimming reflux column mounted on a gas fuel burner and heat exchanger unit separates and skims natural gas condensate off glycol in a settling tank-type reservoir, a fluid scrubber and separator interposed in series in a heat exchanger to reflux column wet glycol return line collects and transfers gas to the fuel burner.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: December 14, 1993
    Assignee: Alberta G. Brigham
    Inventor: Leslie E. Brigham, Sr.
  • Patent number: 4599140
    Abstract: The flow of gases given off by a coke mass during the production of coke in a coke oven having a coke side collector main and a pusher side collector main is controlled by measuring temperature, pressure, carbon equivalent thickness and rate of carbon formation at selected locations. Electrical signals indicative of the temperature, pressure and carbon measurements are fed to an instrument system and into a computer where the measurements are compared to target values, processed and the resultant information used to control the flow of gases by regulating the gooseneck damper, standpipe control valve and/or the control valves which control collector main pressures.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: July 8, 1986
    Assignee: Bethlehem Steel Corporation
    Inventor: Edmund G. Bauer
  • Patent number: 4456175
    Abstract: A body is provided with at least two cylindrical swirl chambers used to form a liquid spray cone for injecting charge gases resulting from charging coal to the coke oven, and a liquid spray cone for cleaning coke-oven gas passing through the coke oven ascension pipe. The swirl chambers are made of different diameters and each has a separate tangentially oriented inlet and a separate axially directed spray nozzle. The chambers communicate with one another through a by-pass passage to provide flow of liquid from one swirl chamber to another one.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: June 26, 1984
    Assignee: Dnepropetrovsky Khimiko-Tekhnologichesky Institut Imeni F. E. Dzerzhinskogo
    Inventors: Alexandr D. Mamrosov, Oleg V. Fedulov, Alexandr S. Kolivashko, Boris I. Meniovich, Vladimir A. Neboga
  • Patent number: 4382841
    Abstract: A gas conduit control system for a coking oven provides for sequential operation of a conduit cover and a seal on a transition element which communicates between the conduit and a gas collection main conduit. The system includes two pivotally connected shafts and two bell crank levers wherein the cover element is connected to one bell crank lever and the seal is connected to the other bell crank lever. One bell crank lever is slotted to permit linear movement of a first shaft without accompanying movement of the associated bell crank lever. The other bell crank lever is pinned to a lengthwise slot in a second shaft to permit lengthwise movement of the second shaft without accompanying movement of that bell crank lever. A hydraulic piston is an element of the first shaft which operates the system by extension and retraction.
    Type: Grant
    Filed: October 29, 1981
    Date of Patent: May 10, 1983
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Theo Koddenberg, Dieter Janssen
  • Patent number: 4359362
    Abstract: A method and apparatus of preventing generation of smoke from a coke oven including a plurality of juxtaposed and alternately disposed combustion chambers and carbonization chambers so that the carbonization chambers are heated by heat generated in adjacent combustion chambers and exhaust gas is exhausted from the combustion chambers through a common smoke duct and a chimney, the exhaust gas is passed through a common exhaust gas duct including a dust collector for a predetermined interval after loading raw material coal into the carbonization chambers. At the end of this interval, the exhaust gas is again passed through the common smoke duct.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: November 16, 1982
    Assignee: Mitsubishi Kasei Kogyo Kabushiki Kaisha
    Inventor: Yoshihiro Omae
  • Patent number: 4299356
    Abstract: A spray nozzle for use in the elbow interconnecting a coke oven ascension pipe and a main, characterized in having frusto-conical nozzle orifices which generate sprays which completely cover the elbow cross section only when they reach the transition between the elbow and the coke oven main.
    Type: Grant
    Filed: May 8, 1980
    Date of Patent: November 10, 1981
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Carl-Heinz Struck, Ralf Schumacher
  • Patent number: 4239602
    Abstract: An improved ascension pipe elbow lid for coke ovens forms a communication means between the coke oven and the volatile products collecting main. The improved structure incorporates a vent which is sealed to prevent the escape of pollutants into the atmosphere.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: December 16, 1980
    Assignee: Insul Company, Inc.
    Inventor: James B. La Bate
  • Patent number: 4197164
    Abstract: 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: Grant
    Filed: June 29, 1978
    Date of Patent: April 8, 1980
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventor: Erich Pries
  • Patent number: 4137128
    Abstract: 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: Grant
    Filed: March 21, 1977
    Date of Patent: January 30, 1979
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventor: Lewis A. Watson
  • Patent number: 4010079
    Abstract: 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: Grant
    Filed: February 19, 1975
    Date of Patent: March 1, 1977
    Assignee: Wilputte Corporation
    Inventor: Paul V. Faber
  • Patent number: 3957590
    Abstract: In a coking oven, in which gas is withdrawn from a chamber through a conduit, a draft control is interposed in this conduit to regulate the pressure therein. The draft control comprises a first and a second throttle flap which are mounted in the conduit and which together cover part of the interior cross-section thereof, the remainder of the cross-section being blocked by a fixedly mounted element, and arrangements being provided for moving each of the throttle flaps individually between an open and a closed position.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: May 18, 1976
    Assignee: Bergwerksverband GmbH
    Inventor: Wolfgang Rohde