Expansion Provisions Patents (Class 202/268)
  • Patent number: 8882966
    Abstract: A pyrolytic reactor, comprising an inner drum having a circumferential wall formed with a plurality of apertures, an outer drum surrounding the inner drum and defining a clearance therebetween, a feeding device for feeding a plurality of feedstock pieces to the interior of the inner drum, an inlet port through which heat carrier gases flow and are directed to said clearance, for introduction of the heat carrier gases via said plurality of apertures to the inner drum interior and causing pyrolysis of the fed feedstock pieces, a conveyor for transporting a plurality of solid residue pieces produced from a pyrolytic process, and an outlet port through which product vapors and gases, heat depleted heat carrier gases, and the plurality of solid residue pieces are discharged.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: November 11, 2014
    Assignee: T.D.E. Recovery Technologies Ltd.
    Inventors: Alexander P. Bronshtein, Menachem L. Skop, Moshe Weiss, David Shalom Jakobowitch
  • Publication number: 20140311886
    Abstract: Disclosed is a batch pyrolysis reactor for the recovery of pyrolysis products by batch processing waste material. The reactor includes a heating chamber, a removable retort for insertion into and withdrawal from the heating chamber, and a control unit for cycling the temperature of waste material in the pyrolysis chamber. The retort includes a pyrolysis chamber having an opening for receiving and extracting solids.
    Type: Application
    Filed: January 20, 2014
    Publication date: October 23, 2014
    Inventors: Paul Andrade, Roger Anton Sramek
  • Patent number: 8496787
    Abstract: A method and apparatus for eliminating brine effluent from desalination plants by distillation, is disclosed. To eliminate the brine the salt is converted into a solid and all of the water in the brine is converted to distilled water. The key to achieving this is reducing or eliminating the scale formation in the heating chamber. In one embodiment the process can be used to reduce or eliminate scale formation in a vapor compression sea water desalinization system and there-by use this system to produce drinking water. This process requires no chemical additives but relies entirely upon separation of the process of vaporization of the fluid involved, from the process of heating of the fluid. In one embodiment of this apparatus sea water can be desalinated and the resulting products can be dry salt and pure water leaving no brine return to the ocean.
    Type: Grant
    Filed: July 26, 2009
    Date of Patent: July 30, 2013
    Inventor: Michael John Lord
  • Patent number: 8440057
    Abstract: A linked coke drum connection to minimize the stresses experienced by the joint between the coke drum and the supporting structure of the coke drum is described. The connection may be attached to a circumferential connection plate attached to the coke drum or directly to the drum. Some embodiments connect to a segmented circumferential connection plate. The connection includes a coke drum link, a connecting link, and a ground link. The links are pivotally connected with connecting pins. As the coke drum is heated and expands, the connecting link pivots outwardly about a point centered in the connecting pin in the ground link.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: May 14, 2013
    Assignee: Curtiss-Wright Flow Control Corporation
    Inventor: Ruben F. Lah
  • Patent number: 8398825
    Abstract: A mode shifting apparatus for a decoking tool, a decoking tool and method of operating same. The apparatus includes features to make it rotatably and translationally responsive to changes in pressure of a decoking fluid such that the apparatus is cooperative with the tool and the decoking fluid in a first operating condition to establish a drilling mode with one or more of the tool's drilling nozzles, and in a second operating condition to establish a cutting mode with one or more of the tool's cutting nozzles. In one form, the apparatus includes one or more sets of tandem seals disposed along a component interface within the apparatus or between the apparatus and the tool to help redundantly isolate seizure-sensitive components within the apparatus from the pressurized decoking fluid. In another form, the apparatus includes a gas spring to counteract the forces imposed by the pressurized decoking fluid. In another form, the apparatus includes a manual override connection.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: March 19, 2013
    Assignee: Flowserve Management Company
    Inventors: Douglas Adams, Lloyd D. Hanson, Andrew Worley
  • Patent number: 8354006
    Abstract: A device for pyrolysis of a material has a horizontal receiving chamber, a horizontally moving compressing element compressing the material in the receiving chamber to form a compact body, a horizontal pyrolysis chamber communicating with the receiving chamber and subjecting the compact body to a heat treatment, a separating partition separating the chambers, and a cylinder-piston unit with a compressing plate which, with the closed partition, first compresses the material in the receiving chamber, then after vertically withdrawing the partition, moves the compressed material from the receiving chamber into pyrolysis chamber and is heated there to produce pyrolysis gas.
    Type: Grant
    Filed: July 16, 2011
    Date of Patent: January 15, 2013
    Assignee: Agro-Energy Holdings LLC
    Inventors: Oleg Shvabsky, Jacob Gitman
  • Patent number: 8317981
    Abstract: A support structure of a coke drum including a cylindrical drum body, an inverted-cone-shaped bottom plate connected to a bottom of the drum body, and a cylindrical skirt supporting the drum body includes an annular joining piece joining the drum body, the bottom plate, and the skirt to one another. The joining piece is a unitary member including an upper body part joined to a lower end of the drum body, a lower inner leg part joined to an upper end of the bottom plate, and a lower outer leg part joined to an upper end of the skirt.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: November 27, 2012
    Assignee: Sumitomo Heavy Industries Process Equipment Co., Ltd.
    Inventors: Yasuhiko Sasaki, Shinta Niimoto
  • Patent number: 8221591
    Abstract: A delayed coking unit with a coking drum having an upper cylindrical portion and a lower frusto-conical portion is supported by means of a support structure surrounding the cone frustum of the lower portion of the drum; the support structure comprises a cone support member having a concave frusto-conical support surface mating with the outer convex cone frustum of the lower portion of the drum so that the drum sits in the cone support element. The support structure further has a weight supporting member or members attached to the cone support member intermediate its upper and lower peripheries which acts or act to transfer the weight of the drum (and contents) downwards to a suitable sub-structure such as a concrete slab. In a preferred embodiment, the drum may also be stayed against lateral forces by means of guide members at the upper portion of the drum.
    Type: Grant
    Filed: September 5, 2008
    Date of Patent: July 17, 2012
    Assignee: ExxonMobil Research & Engineering Company
    Inventors: Domingo E. de Para, Claude A. Lafleur, Ronald J. Kobialka
  • Patent number: 7871500
    Abstract: A coke drum skirt to minimize the stresses experienced by the coke drum and the supporting structure of the coke drum is described. The skirt includes one circumferential horizontal plate attached to the coke drum, and the circumferential horizontal plate is slidingly sandwiched between a lower supporting plate that supports the weight of the drum through the circumferential horizontal plate and an upper retaining plate that prevents the coke drum from tipping or falling over. The upper retaining plate may be embodied as a series of retaining clips that also keep the coke drum centered and prevent rotation of the coke drum. The upper and lower plates are anchored to a concrete support base. The sliding connection of the plates allows the coke drum to thermally expand and contract while reducing stresses and metal fatigue from the typical fixed securing of the coke drum to the support base.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: January 18, 2011
    Assignee: Curtiss-Wright Flow Control Corporation
    Inventor: Ruben F. Lah
  • Patent number: 7666279
    Abstract: A structure for extreme thermal cycling has a support element that supports a vessel primarily by bearing and frictional forces rather than by welds. The support element has a bearing portion that tapers inwardly beneath a knuckle that separates a cylindrical section of the vessel from a sloped lower section. The bearing portion of the support element follows that slope, providing an extended area of contact between the support element and the vessel. An annular section of the support element can be heated and expanded before placing it around the cylindrical section of the vessel to provide pre-stressing. If required, a strap may extend downwardly from the vessel over an upper edge of the support element.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: February 23, 2010
    Assignee: Chicago Bridge & Iron Company
    Inventors: Steve M. Cihlar, Dale A. Swanson, Randy L. Eberly
  • Patent number: 6916406
    Abstract: A coke oven door comprises a generally rectangular outer frame, a generally rectangular inner frame positioned within the outer frame and a seal operably mounted to the inner frame and adapted for effecting sealing against a jamb of a coke oven. The outer frame is adapted for moving the seal toward the jamb and the outer and inner frames are pivotally connected so as to be able to pivot relative to one another about a longitudinal pivot axis.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: July 12, 2005
    Assignee: Saturn Machine & Welding Co., Inc.
    Inventor: Billy Carr Baird
  • Patent number: 6143137
    Abstract: A rotary drum cooler for cooling particulate material (e.g. coke particles) having at least one cooling pocket which, in turn, includes a flexible vent pipe assembly which can slide in relation to the shell of the cooler. By making the vent pipe slidable, it can move in response to the expansion and contraction of the pocket within the shell. The vent pipe assembly is comprised of (a) a tube which is connected to the pocket and which slidably extends through an aperture in the shell and (b) a flexible means for sealingly connecting the outer end of the tube to the shell.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: November 7, 2000
    Assignee: Atlantic Richfield Company
    Inventors: Ralph Gerstenkorn, Robert William Biederstadt, Jack Richard Highlander, Jr., John William Daly
  • Patent number: 6083380
    Abstract: A method to condense or coalesce matter is carried out by providing a suitable, narrow passageway for throughput of matter in a vapor state, and passing the matter in a vapor state through said passageway, under conditions such that the matter is coalesced into a more ordered state. Also, a matter coalescing apparatus has a hollow housing in communication with at least one of--(A) a plurality of suitably narrow hollow passageways and (B) a suitably narrow, elongately hollow, matter-coalescing passageway--for throughput of matter to include as a vapor therein. Consequently, highly efficient yields of coalesced matter, to include liquid coalesced from vapor, even under only mild vacuum or at about ambient atmospheric pressure can be obtained. This is especially so with respect to oils, where yields as high as 95 percent or greater can be provided hereby. The invention can be practiced under such outstanding yield efficiencies without a general need for significant external cooling.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: July 4, 2000
    Assignee: Tannas Co.
    Inventors: Theodore W. Selby, Andrew J. Stephenson
  • Patent number: 5891310
    Abstract: The cycle time for a delayed coker unit is reduced by externally heating the coke drum near the junction of the drum shell and the supporting skirt thereof prior to beginning the hot coker feed fill step. This reduces the thermal stresses at the area around the welds of the drum skirt.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: April 6, 1999
    Assignee: Conoco Inc.
    Inventor: David K. Nelsen
  • Patent number: 5827403
    Abstract: A method of manufacturing a delayed coker drum as used in a refining process to receive coke feedstock as a hot liquid and in which the coke feedstock is cooled and quenched to produce solid coke, the hot liquid causing the drum to initially expand circumferentially and laterally and upon quenching to shrink due to thermal contraction, the circumferential shrinking serving to crush solidified coke and the lateral shrinking causing interface frictional contact between the solidified coke and the vessel sidewall that must be overcome, inducing high level stresses in the drum, including the steps of selecting a plurality of metal plates configured for assembling the drum, and welding the plates together creating welded seams and in which the metal plates are selected to have metallurgical characteristics and thicknesses such that their elastic limits exceed the stress introduced in the plates during the quenching process and employing welding materials and techniques such that the elastic limits of the welded se
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: October 27, 1998
    Assignee: Citgo Petroleum Corporation
    Inventors: Richard S. Boswell, Thomas D. Farraro
  • Patent number: 5772843
    Abstract: An evaporator includes a tank covered by a lightweight lid which is easily lifted to avoid high pressure in the event of an explosion. The bottom of the tank includes a flat portion which slopes downwardly toward an outlet in the sidewall of the tank. The flat section is substantially wider than the outlet to accommodate use of a square-nosed shovel to clean the tank. A fire tube in the bottom of the tank receives hot gases from a burner. A thermometer senses the temperature of the wall of the fire tube to respond to low liquid level in the tank, scale on the fire tube wall, and buildup of solids in the mixture. The open lower end of an upwardly extending standpipe is in liquid in the tank. The upper end of the standpipe is closed by a ball valve and extends above the mixture in the tank. Devices are provided for making the pressure in the standpipe different from atmospheric pressure.
    Type: Grant
    Filed: June 6, 1996
    Date of Patent: June 30, 1998
    Inventor: Laurence Mark Rhodes
  • Patent number: 5366596
    Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion; anda rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: November 22, 1994
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: William Taciuk, Roderick Caple, Sean Goodwin, Gordon Taciuk
  • Patent number: 5281310
    Abstract: A solar apparatus such as a solar water heater or cooler comprising a cell which is partially transparent to the sun's rays and has an internal section formed by an assembly of two casing which surround one another and define the variable capacity of the absorber as well as various means for supplying, storing and discharging water.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: January 25, 1994
    Inventors: Myriam Djelouah, Nadia Djelouah
  • Patent number: 5279713
    Abstract: A door is equipped on its side facing the area to be closed off, with a sealing element disposed around the peripheral edges of the door, a door locking device to retain the door in a closed position, and possibly a thermal layer for insulating the door from passage of heat therethrough.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: January 18, 1994
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventors: Klaus Wessiepe, Wilhelm Stewen
  • Patent number: 5258101
    Abstract: A pyrolytic converter utilizing a rotatable drum surrounded by an outer drum support structure and disposed in an oven chamber pyrolyzes materials including plastic waste, tires, materials from automobile shredding operations, containers and trays of plastic material, rubber, leather, garbage, sewage sludge, coal, oil shale, broken asphalt and the like. These materials are formed into cartridges by a compactor using a reciprocating ram which forms cartridges in an injection tube wherein another ram injects the cartridges into the converter drum. The converter is disposed on a fulcrum near the injection end thereof while the discharge end is suspended by cables to accommodate thermal expansion of the converter. Cables also suspend collection and separation apparatus having water filled chutes, into one of which the products of pyrolyzation of low density (char) and solids of higher density are discharged from the converter drum. Lower and higher density solids are separately collected tanks.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: November 2, 1993
    Assignee: Wayne Technology Corp.
    Inventor: Fred A. Breu
  • Patent number: 5238539
    Abstract: A coke oven door has a mainframe, a diaphragm plate mounted on the mainframe, a seal mounted peripherally on the diaphragm plate, and plungers mounted peripherally on the mainframe for applying adjusting force to the seal. The seal is adapted for angular contact with a door jamb, and is backed by individual leaf springs arranged in end-to-end relation which are operable to provide rigidity to the seal when the seal is in contact with the jamb. The seal is locally adjustable with the plungers. The mainframe includes a pair of generally parallel side plates having slots along their lengths and a turnbuckle spanning each slot. The turnbuckles provide for flexing the mainframe into a desired configuration for initial adjustment of the door to a door jamb.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: August 24, 1993
    Assignee: Saturn Machine & Welding Co., Inc.
    Inventor: Billy C. Baird
  • Patent number: 5217578
    Abstract: The processor is of the type incorporating horizontal, concentric, co-extensive inner and outer tubular members which rotate together. The processor is modified in the following respects:The front end of the inner tubular member is circumferentially corrugated and may be provided in the form of a plurality of parallel tubes arranged in a ring array, to thereby increase the shell area to promote heat transfer through the tube walls;Means are provided for interconnecting the tubular members, which means can accommodate differing rates of thermal expansion and;a rock recycle tube assembly is provided to recover oversize material leaving the corrugated portion of the inner tubular member and reject it from the processor.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: June 8, 1993
    Assignee: Alberta Oil Sands Technology and Research Authority
    Inventors: William Taciuk, Roderick Caple, Sean Goodwin, Gordon Taciuk
  • Patent number: 5211812
    Abstract: The invention relates to a device for the recovery of a processed liquid in the form of a condensate from a liquid to be processed by evaporation and condensation, having at least one first flow region which is provided in a working space for the development of a first sheetlike flow of the liquid to be processed and at least one condensing surface, adjacent to the first flow region and cooler in temperature than the first flow, for liquid evaporated at the first flow region.The invention is characterized in that a second flow region is adjacent to the at least one first flow region in the common working space for the development of a sheetlike second flow, and in that the condensing surface is formed of the surface of the liquid of the at least one second flow region.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: May 18, 1993
    Assignee: Institut fur Entwicklung und Forschung Dr. Vielberth KG
    Inventors: Johann Vielberth, Eberhard Willach
  • Patent number: 5137603
    Abstract: The invention provides a construction block useful in the construction of coke oven combustion chamber assemblies. The construction block is a rectangularly-shaped unit comprises:(a) an upper and lower wall surface, wherein the construction block's upper wall surface comprises at least one ridge or groove running along at least a portion of the longitudinal axis of the construction block's upper wall surface, and wherein the construction block's lower wall surface comprises at least one ridge or groove running along at least a portion of the longitudinal axis of the construction block's lower wall surface,(b) a left and right side wall surface, and(c) two end wall surfaces, wherein at least one of the two end wall surfaces is offset along the longitudinal axis of said construction block's upper and lower wall surfaces to define one-half of a horizontally-oriented, L-shaped lap joint.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: August 11, 1992
    Assignee: Resco Products, Inc.
    Inventors: Reuben B. Arthur, Jr., Jerry W. Whitley, Harry R. Stowe, Jr.
  • Patent number: 4954223
    Abstract: A distillation apparatus including a pair of vertical lower vessels each open at its upper end, and a pair of elongate upper vessels each having an open lower end, slidably mounted in a respective one of the lower vessels. A heat exchanger is mounted in each of the upper vessels, with the upper end of one upper vessel being connected to the inlet of the heat exchanger in the other vessel, and vice versa. A reciprocating drive mechanism drives the two upper vessels up and down in opposite directions so as to simultaneously effect compression in the space above the liquid level in the downwardly moving vessel while expanding the space above the liquid in the other vessel, driving vapor from the downwardly moving vessel into the heat exchanger in the other vessel, where it condenses.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: September 4, 1990
    Inventors: Joseph E. Leary, Edward L. Parr
  • Patent number: 4927494
    Abstract: A high pressure evaporation vessel which is operated at a predeterminate pressure above atmospheric pressure, is connected to a low pressure expansion vessel which is operated at a predeterminate pressure below the pressure prevailing in the high pressure evaporation vessel, through a U-shaped siphon tube. The U-shaped siphon tube contains a liquid column absorbing the pressure difference existing between the high pressure evaporation vessel and the low pressure expansion vessel.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: May 22, 1990
    Assignee: Sulzer-Escher Wyss AG
    Inventors: Robert Winkler, Siro Sala, Takayuki Kobayashi, Shinjiro Yokota
  • Patent number: 4927501
    Abstract: A metal shield is for an oven which has an interior, a door opening which is surrounded by a door frame, and a door for extending across the door opening. The door is for making sealing contact with the door frame. The metal shield includes a plurality of generally parallel elongated metal members which combine to form an array of elongated metal members substantially lying within a plane. The array of elongated metal members is disposed within the interior of the oven inwardly of the door frame and inwardly of the door when the door is in sealing contact with the door frame. The array of elongated metal members extends generally transversely to the interior of the oven with the plane being generally parallel to the door frame.
    Type: Grant
    Filed: July 28, 1988
    Date of Patent: May 22, 1990
    Assignee: Ruhrkohle AG
    Inventor: Wolfgang Becker
  • Patent number: 4917772
    Abstract: An oven door assembly of a shield-type construction for vented oven doors is achieved by ceramic barrier plates which can be produced in an extrusion process and which are mounted to supports, preferably in the form of cantilever beams fixed with one end to the oven door body and bearing clamps at the other end for clamping the ceramic barrier plates. Each ceramic barrier plate is replaceable and has grooves on the upper and lower side faces to receive the clamps. The clamps are constructed for clamping the ceramic barrier plates by pressure forces acting normal to the upper and lower side faces of the ceramic plates.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: April 17, 1990
    Assignee: Dr. C. Otto Feuerfest GmbH
    Inventors: Hans-Joachim Koschlig, Lothar Brandau
  • Patent number: 4810327
    Abstract: In a falling film evaporator of the vertical-tube type in which liquid to be evaporated is supplied at the top on the outer surface of vertical heat exchanger tubes and the heat medium is supplied to the heat exchanger tubes at the bottom for flow inside the same, at least one larger tube element than the heat exchanger tubes is disposed between and fixed to tube plates at the both ends of the group of tubes to stabilize the group of tubes against tension and especially compression stresses.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: March 7, 1989
    Assignee: Ahlstromforetagen Svenska AB
    Inventor: Kjell Norrmen
  • Patent number: 4747913
    Abstract: Apparatus for cooling granular material such as petroleum coke comprises an elongated drum characterized by a generally cylindrical shell wall having spaced apart circular segment pockets extending radially inwardly from the shell wall toward the central axis of the drum to provide extended heat transfer surfaces and flow spaces for cooling water. The cooling pockets are welded to the shell wall along the edges of opposed sidewalls of the pocket or conduit members themselves. The somewhat flexible drum shell resulting from the aforedescribed construction is strengthened and held substantially rigid for rotation about its central axis by a plurality of circumferentially spaced tension rods which extend from one end of the drum to the other and are engagable with a support plate.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: May 31, 1988
    Assignee: Atlantic Richfield Company
    Inventors: Ralph Gerstenkorn, Dale D. Erickson, Heyward G. Christmas, Ronald E. Kelley, Charles A. Taul
  • Patent number: 4732652
    Abstract: A clamping system for preventing detrimental tensile and shearing stresses in heating walls used for example as partitions in industrial furnaces, comprises clamping plates adjoining opposite end faces of a heating wall plate, yoke-shape beams facing each clamping plate and interconnected by cross tie rods, and pressing elements between the beams and the clamping plates. The bias of the pressing elements is adjusted so as to decrease from the center of the clamping plate towards the upper and lower edges of the heating wall plate, the material of respective clamping elements being selected such as to keep the interfering forces within the limits of 5 to 20% of the original clamping forces, the resultants of the clamping forces being directed to the marginal area of each clamping plate, and the roughness in excess of 2.5 millimeters between the clamping plate and the heating wall plate being reliably compensated.
    Type: Grant
    Filed: April 14, 1987
    Date of Patent: March 22, 1988
    Assignee: Krupp Koppers GmbH
    Inventors: Heinz Durselen, Jurgen Neitzel, Arnulf Schuffler, Walter Stanke
  • Patent number: 4673459
    Abstract: A free flow evaporator of the falling film type has the heating elements disposed in a circular configuration so that each extends radially a distance less than the interior radius of the evaporator cylindrical vessel. Heating vapor is introduced concentrically into the top of the vessel and passes into the tops of the heating elements, and condensate is withdrawn from the bottoms of the heating elements in the vessel. Excess vapor passes through a vapor vent in the bottom of the vessel. The boiling liquid, such as black liquor from paper pulp processing, is introduced through a header above an annular channel with a perforated plate bottom, the perforated plate being disposed on top of the heating elements. The evaporated liquid vapor passes radially outwardly in the vessel, and then upwardly, and is discharged from the top of the vessel and passes to the top of another vessel (providing another effect), to provide heating vapor to the other vessel.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: June 16, 1987
    Assignee: Kamyr, Inc.
    Inventors: Carl L. Elmore, Paul Sherman, Daniel A. McGrath
  • Patent number: 4565605
    Abstract: A pair of adjacent horizontal coking chambers of a coke-oven battery are separated by a longitudinal wall with a multiplicity of vertical heating ducts, the wall being built from blocks which form two parallel frameworks defining the ducts between them. Each framework consists of longitudinal and transverse refractory blocks--preferably of silica--leaving rectangular apertures open toward the ducts and the chambers, these apertures being occupied by refractory plates of lower thermal resistance than the blocks. The transverse blocks of the two frameworks extend overlappingly between the ducts and have interfitting formations holding the frameworks together.
    Type: Grant
    Filed: March 18, 1983
    Date of Patent: January 21, 1986
    Assignee: Bergwerksverband GmbH
    Inventor: Dirk Kruse
  • Patent number: 4564420
    Abstract: Coking chambers in a coke oven battery are disposed in an alternate relationship with heating flues. At the top of each coking chamber there is a top arch having an inner-arched surface defined by a segment of a circle whose diameter is greater than the internal width of the coking chamber. The coking chamber is bounded by two heating walls which are extended to the spring of the arch where wall portions extend in an inclined manner upwardly and outwardly to form a mushroom-shaped gas-collecting chamber above the coke oven chamber. These wall portions extend at an angle of approximately 30.degree. to 50.degree. to the horizontal. The diameter of the arched wall portions for the arch is approximately between 30% and 60% greater than the internal width of the coking chamber.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: January 14, 1986
    Assignee: Dr. C. Otto & Comp. GmbH
    Inventors: Heinrich Spindeler, Folkard Wackerbarth, Horst Kuhlmann, Helmut Dohle, Horst Althaus
  • Patent number: 4545860
    Abstract: A construction for a battery of coke ovens and to a method for repairing m in which a continuous vertical joint plane is provided in the walls of the piers separating the ovens of the batteries, which walls are constructed of courses and headers and stretchers, the plane extending along one of the lateral faces of the headers, with one of the two adjacent stretchers of the course immediately above and below the header being longer than the other stretchers in the wall and the other being shorter so that the joint between them is located in the same vertical plane as the said faces of the headers.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: October 8, 1985
    Assignees: Entreprise Lyskawa S.A., Union Siderurgique du Nord et de L'est da la France (USINOR) S.A., Etudes Techniques et Realisations (CdF Ingenierie) S.A.
    Inventors: Edmond Lyskawa, Paul Roger, Jean Marquis, Etienne Canivez
  • Patent number: 4518461
    Abstract: A support for a battery of coking furnaces with regenerators has a plurality of waste heat passages formed beneath the regenerators and extending in a longitudinal direction of the battery, a foundation formed by a floor member and also by wall members of the waste heat passages, a further supporting plate slidingly supported on the walls and repeatedly subdivided transversely to the longitudinal direction of the battery so as to form a plurality of plate portions, and two longitudinal bars each located at a machine side and at a coke side of the battery and slidingly supported on consoles of the foundation, wherein each of the longitudinal bars engages the plate portions of the furnace supporting plate and fixes them in their positions.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: May 21, 1985
    Assignee: Krupp-Koppers GmbH
    Inventor: Jan Gelfand
  • Patent number: 4512080
    Abstract: The amount of flexure of a heating wall of a coke oven is determined during operation of the coke oven by providing an observation hole through the oven roof into a heating flue, the observation hole having an axis. On at least one of the binder walls defining the heating flue is formed a vertical measuring strip extending throughout substantially the entire height of the binder wall at a position to be visible through the observation hole. The measuring strip defines, prior to heating during operation of the coke oven, a rectilinear reference line extending parallel to and spaced from the axis of the observation hole. Upon operation of the coke oven, during which time the heating wall is heated and flexes, the degree of such flexure is determined by measuring through the observation hole the extent of deviation of the measuring strip from the reference line.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: April 23, 1985
    Assignee: Didier Engineering GmbH
    Inventors: Dietrich Wagener, Manfred Blase
  • Patent number: 4502922
    Abstract: Coke oven chamber doors form heat-resistant plugs having a construction to prevent damage when the plugs are removed and replaced. Each plug consists of an external door-body plate and internal steel plates. The ends of the internal plates overlap each other for relative movement. The lowermost plate is secured at its lower end and the uppermost plate is secured at its upper end. This provides a specific longitudinal dimension of the overlapping plates.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: March 5, 1985
    Inventors: Wilhelm Stewen, Peter Pape
  • Patent number: 4492951
    Abstract: A capillary tube is shrunk around a wire heating element, fashioned into the desired configuration, and situated between the exterior surface of a cylindrical inner glass tube and the interior surface of a cylindrical outer glass tube, to form an assembly. The space between the adjacent tube surfaces is evacuated as a heat source is moved along the axis of the assembly to heat each longitudinal section of the assembly, in sequence. The element is thermally expanded as the outer tube surface collapses toward the inner tube surface, resulting in the fusion of the adjacent glass surfaces around the expanded element. In this manner, a channel is formed through the fused glass body which has the configuration and dimensions of the expanded element. During cooling, the element returns to its unexpanded condition. This results in a space between the channel walls and the element, permitting the element to expand, when electrically energized, without breaking the glass body.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: January 8, 1985
    Assignee: Kontes Glass Company
    Inventors: Richard L. Apothaker, James Reed, Carmen L. Croce, Frederick B. Wagner, III
  • Patent number: 4445977
    Abstract: An offset expansion joint and method of installing the same in a repaired or rebuilt furnace, such as a coke oven or the like, comprises at least two segments of ceramic fiber spaced laterally from one another and separated by silica bricks and a barrier of silica mortar which extends along an edge of each segment and along an edge of each of the bricks by which the segments are spaced, the silica mortar having the ability to set up when exposed to about 2200.degree. F. to prevent passage of gas through the expansion joint in the area of the horizontal flue of the coke oven.
    Type: Grant
    Filed: February 28, 1983
    Date of Patent: May 1, 1984
    Assignee: Furnco Construction Corporation
    Inventor: Lee K. Husher
  • Patent number: 4414072
    Abstract: A coking chamber of a coke-oven battery, with heated longitudinal walls interconnected by a doorjamb at each end, is closed by a pair of doors sealingly fitting into these doorjambs. Each door has a vertical channel separated from the exterior by an outer wall with a heat-insulating layer and from the interior of the chamber by an upright metal plate facilitating thermal conduction therebetween. The channel is accessible at various levels or over its entire length to gases evolving from a charge inside the chamber which, in rising toward the roof of the chamber, retransmit some of their heat through the metal plate to the charge for enabling substantially uniform heating thereof from four sides.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: November 8, 1983
    Assignee: WSW Stahl-und Wasserbau GmbH
    Inventors: Dieter Breidenbach, Wilhelm Mosebach
  • Patent number: 4410399
    Abstract: A self-sealing door assembly for a coke oven comprises a door frame affixed around the oven opening, the surfaces of the frame facing the oven defining a gap which is filled with heat insulating material, and the outer front surfaces of the frame cooperating with iron sealing strips on the body of the door. The gap filled with insulating material is defined between the vertical and transverse surfaces on the door frame facing the oven and an internal angle-sectioned cover divided around the periphery of the door frame into a plurality of overlapping sections which are supported on distance pieces attached to the surfaces of the door frame.
    Type: Grant
    Filed: January 11, 1982
    Date of Patent: October 18, 1983
    Assignee: Ruhrkohle Aktiengesellschaft
    Inventors: Wilhelm Holz, Helmut Lukaszewicz
  • Patent number: 4398999
    Abstract: A coke oven battery has a continuous roof and uprights at each of the pusher and coke sides. The uprights are connected by ties extending through pipes embedded in the roof. To provide cooling for the ties, a massive metal cooling member extends upwardly from each pipe to the upper side of the roof, to conduct heat away from the pipe. The cooling member may contain a chamber forming an evaporation cooling system.
    Type: Grant
    Filed: January 21, 1982
    Date of Patent: August 16, 1983
    Assignee: Estel Hoogovens BV
    Inventors: Jacobus van Laar, Timen Vander, Johannes A. Kroes, Pieter G. Broersen
  • Patent number: 4387004
    Abstract: To seal against the surround of the door opening of a coke oven, the door has an elongate knife-edge element which engages the surround and is held against a sealing surface on the side of the door. The knife edge element is movable past the sealing surface on the door for adjustment. The knife-edge element is divided into a plurality of mutually abutting parts in the adjustment direction. In order to allow a greater amount of adjustment of the knife edge element and to make assembly of the seal easier, holding means e.g. a plurality of brackets, are provided to hold the parts of the knife edge together in the adjustment direction and to restrain at least the outermost part from lateral movement relative to the door. The holding means permits relative sliding of the parts in the longitudinal direction.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: June 7, 1983
    Assignee: Estel Hoogovens B.V.
    Inventor: Klaar Prins
  • Patent number: 4381972
    Abstract: A coke-oven door for a horizontal coking chamber has a metallic body with an inner surface covered by a thermally insulating layer and a metal plate mounted with the aid of vertically separated spacers on that inner surface. The plate consists essentially of a multiplicity of sections longitudinally adjoining or overlapping one another with limited mobility to facilitate relative thermal expansion. Each spacer comprises a first member secured to the door body and a second member coupled with an associated plate section, or with two such sections in their region of overlap, these members being interconnected with mutual play and/or with relative adjustability.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: May 3, 1983
    Assignee: WSW-Planungs-GmbH
    Inventor: Wilhelm Stog
  • Patent number: 4367075
    Abstract: A thrust containment apparatus is disclosed for use with a pressurized rotary kiln gasifier. The thrust containment apparatus maintains stationary hoods mounted on both ends of the kiln shell in fixed positions by relieving the hoods of forces generated by high pressures within the kiln. The thrust containment device comprises braces mounted on the hoods on the sides remote from the kiln shell. Tie members, or tie rods, extending along the exterior of the kiln shell connect the braces. An expandable bellows is provided between one brace and its adjacent hood. As tie members deform through thermal and tensile expansion, the bellows accomodates the expansion while maintaining a gas-tight seal between the hood and the brace.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: January 4, 1983
    Assignee: Allis-Chalmers Corporation
    Inventor: Walter J. Hartwig
  • Patent number: 4363702
    Abstract: To decrease a loss of coke due to burning and to prolong the service life of an apparatus for receiving incandescent coke and conveying the same to a quenching tower, between a wall structure (1) and lining plates (2) there is disposed a spacing member in the form of corrugated sheets (12), and the lining plates (2) are mounted with the provision for linear expansion under the action of heat from incandescent coke and connected to the wall structure (1) by means of cover pieces (13) overlapping temperature gaps, bolts (14) and nuts (15). Bottom gates (7) of a hopper (5) are provided with sealing members (18) having a surface (A) and (B) contacting the round surface of a girdle (6) tangentially. Specific embodiments of spacing members, sealing members and locking means are described.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: December 14, 1982
    Inventors: Valery N. Kucher, Georgy R. Reiman, Grigory D. Zhovtobrjukh, Evgeny P. Likhogub, Gersh A. Dorfman, Mikhail I. Durachenko, Alexandr N. Minasov, Valentin B. Bocharov, Alexandr Z. Popenko
  • Patent number: 4339307
    Abstract: The apparatus includes a housing enclosing a boiler in the lower portion and a water-filled condenser in the upper portion with an insulated partition between them. The entry of boiler feed water is controlled by a float valve in the boiler, and steam from the boiler is conveyed through the partition and thus through a condenser coil substantially immersed in the water in the condenser.
    Type: Grant
    Filed: March 20, 1979
    Date of Patent: July 13, 1982
    Inventor: John C. Ellis, Jr.
  • Patent number: 4284477
    Abstract: Vertically elongate pockets are defined between fixed and horizontally movable vertical refractory walls. When the bottom of the pocket is closed, coal dropped into the pocket from above is compressed between the fixed and movable walls and heated to coking temperature by hot gases in vertical flues extending through the refractory walls. When coked, the moveable wall recedes and the coke therein drops into a shaft furnace below, where devolatilization is complete and the coke is quenched in an inert gas atmosphere, which is totally enclosed to prevent air pollution.
    Type: Grant
    Filed: July 25, 1980
    Date of Patent: August 18, 1981
    Assignee: Mansfield Carbon Products, Inc.
    Inventor: Vaughn Mansfield
  • Patent number: 4261795
    Abstract: This disclosure is directed to an economical system for the pyrolysis of municipal solid waste to recover valuable by-products while reducing the putrefaction and bulk of the residue requiring disposal. Prior to this treatment, the solid waste has been processed to remove most of the metallic components, and shredded, which steps are not part of the invention disclosed. The pyrolysis and by-product recovery technology is complicated by (a) the inherent variability of the chemical and physical characteristics of the shredded solid waste as received at the pyrolysis plant and (b) the relatively low heat value of said waste as thus received.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: April 14, 1981
    Inventor: Bertram B. Reilly