Air And Gas Seals Patents (Class 202/269)
  • Patent number: 4389284
    Abstract: A charging hole cover sealing structure in which a disc-shape cover is superimposed over the charging hole and an annulus-shaped charging hole frame. The frame has on its top surface a peripheral medial groove and an inner planar surface. The cover has a lip with a terminal downwardly projecting peripheral tongue that engages the medial groove on the frame as the lip abuts its inner planar surface so that dual gas tight seals are established. A primary continuous seal is established at the point where the lip abuts the inner planar surface on the frame. The groove is filled with a heat resistant particulate material which will cause any coke oven gases escaping through this primary seal to be condensed so as to form a particularly effective sealant material made up of a mixture of the resultant tarry condensation with the particulate material.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: June 21, 1983
    Assignee: Koppers Company, Inc.
    Inventor: George R. Cain
  • 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: 4385963
    Abstract: A coke car is traversed along a battery of coke ovens and receives hot coke discharged through a fall space in an overlying smoke collector hood. The car is moved slowly only a short distance along the battery during the coke pushing operation while it is loaded wih coke at one end of the car and progresses slowly to the other end thereof. Horizontal end sealing plates are fitted to the car and the hood at the level of the top edges of the end walls on each side of the car and hood. The total of the length of the two sealing plates is not less than the distance traveled by the car during coke pushing. Gaps are left between the bottom edges of the side walls of the smoke hood or extension plates disposed thereon and the sealing plates on the coke car. The gaps allow entry of air into the hood for uniform extraction of the emissions formed during the coke pushing operation. In addition, gaps of equal width can also be left between the top edges of the longitudinal walls of the car and hood.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: May 31, 1983
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
  • Patent number: 4379023
    Abstract: A lock is disclosed for charging holes of horizontal coke ovens and for permitting the charging of moist or preheated coal through charging devices, such as longitudinal conveyors fixedly mounted on the battery, or traveling charging cars, while preventing emission. The lock is designed as a spectacle gate accommodated in a casing which is firmly connected to the frame of the charging hole and forms a gastight seal against the connections of the charging devices even during the actuation of the spectacle gate, and with the spectacle gate being actuated through a linkage from outside the casing.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: April 5, 1983
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Josef Stratmann, Willi Brinkmann
  • 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: 4366028
    Abstract: A jamb brick support for a coke oven door is provided at the bottom of the door body on the side facing the oven chamber and supports at least the lower part of the refractory door stopper and, with the door set in place, extends closely above the oven sole and the oven sole plate of the chamber frame.
    Type: Grant
    Filed: November 6, 1981
    Date of Patent: December 28, 1982
    Assignee: Firma Carl Still GmbH & Co. K.G.
    Inventor: Werner Abendroth
  • 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: 4347105
    Abstract: A coke side gantry car for a battery of coke ovens supports an extractor and a cleaner for the door, a door frame cleaner, a coke guide grating and a hood for collecting emissions during coke pushing operations. At least one of a plurality of rails to support the gantry car is disposed on the coke platform and another of the rails is disposed outwardly therefrom above and generally parallel with tracks for a hot coke car. A coke guide grating in a casing with continuous side walls moves axially of the oven chamber between the chamber opening and an outward position where a substantial part of the weight is carried by the outer track for the gantry car. The casing extends around the grating and covers the side walls thereof. The casing cooperates with members to form a seal with the coke oven chamber and the smoke hood.
    Type: Grant
    Filed: November 12, 1980
    Date of Patent: August 31, 1982
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
  • Patent number: 4344823
    Abstract: A discharger is disclosed for a dry coke cooling chamber which utilizes a breeches chute having a plurality of outlets. The breeches chute is supplied with coke by a continuously operable conveyor which conveys coke from an outlet of the cooling chamber to an inlet of the breeches chute. A tilting table or other apparatus is provided in the breeches chute to selectively discharge the coke to one of the breeches chute outlets. A lock bin is provided at each of the outlets to receive coke and, at the same time to isolate the cooling chamber in a gastight fashion from the atmosphere.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: August 17, 1982
    Assignee: Firma Carl Still GmbH & Co. KG.
    Inventors: Josef Stratmann, Klaus Mrongowius
  • 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: 4337122
    Abstract: A new and useful coke oven door which is simple in construction but provides complete sealing efficiency. A pair of supporting holes are formed on each of upper and lower portions of the side plates of the door body, and through the supporting holes a locking bar extends which has on the center portion an arm for rotating and on both ends rollers eccentrically located with respect thereto. By rotating the locking bar with the arm, the door can be moved slightly backward or forward when removing or installating lest the knife edge should scratch the door sealing frame.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: June 29, 1982
    Assignee: Koritsu Machine Industries, Ltd.
    Inventor: Tetsuo Kurihara
  • Patent number: 4314889
    Abstract: A gas-transfer tube assembly is used to extract charging gases through an orifice in the roof of one coke oven chamber and discharge the gases into an adjacent second coke oven chamber through an orifice in the roof thereof. Each orifice has a riser with an annular water seal normally closed by a removable cover. The gas-transfer tube assembly includes downwardly-extending tubular end portions with elbow parts that are selectively connected together by a straight mid-section used to change the spacing between the downwardly-extending end portions. The gas-transfer tube assembly is supported for vertical movement on a car that runs along a monorail supported by buckstays. The car is stabilized by rollers at the top of the car to engage a rail.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: February 9, 1982
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
  • Patent number: 4304413
    Abstract: A seal for the offtake piping of a coke oven. The piping includes two communicating parts, such as an ascension pipe and a gooseneck, which move relatively to one another. A seal between these parts prevents escape of gases. The seal includes a trough fixed to one of the parts and receiving the other. The trough contains a body of a non-coking non-flammable liquid, preferably silicone, into which the other part extends. Optionally the trough may also contain a gasket of a closed cell sponge elastomer or a layer of granular material.
    Type: Grant
    Filed: March 10, 1980
    Date of Patent: December 8, 1981
    Assignee: United States Steel Corporation
    Inventors: Paul E. Champagne, Calvin E. Kelly, Thomas E. Nicely
  • Patent number: 4296938
    Abstract: An immersion type seal for a standpipe opening of a coke oven comprises a standpipe which has a top part with top opening and an encircling rim around the opening which is closed by a standpipe lid and an annular seal frame interposed between the lid and the opening. The seal frame includes a lower peripheral edge which is of spherical shape which is seated on a ring disposed over the rim of the standpipe top opening and the seal frame is advantageously adjusted on the seating ring and clamped by means of tie rods which are disposed at spaced locations around the periphery of a flange portion of the seal frame. The tie rods are clamped between flanges of a top piece of the standpipe and the standpipe itself and the flange of the seal frame. The seal frame also defines an open top trough which defines a water seal and the standpipe lid includes an annular wall portion which extends into the trough.
    Type: Grant
    Filed: May 2, 1980
    Date of Patent: October 27, 1981
    Assignee: Firma Carl Still GmbH & KG
    Inventors: Ludwig Offermann, Rheinhold Wippich
  • 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: 4259159
    Abstract: A device for sealing the cambers of coke ovens adjacent the roof of the oven and above an oven door frame which is located at the transition between fireclay brickwork and silica brickwork each of which has joints between the courses thereof is located between anchor plates which support each side of the door frame. The door frame includes a vertical back portion which intersects a horizontal top portion. During the formation of the brick a cast iron bridge is positioned so that a vertical part is arranged directly behind the door and is advantageously sealed to the rear base of the door frame by a gasket or asbestos cord. The anchor plate carries an upper horizontal portion which is disposed beneath the fireclay brick at the transition between the fireclay and the silica brickwork and supports the fireclay brick. In addition, another horizontally extending part of the cast iron bridge is positioned into the silica brickwork between adjacent courses located near the top of such brickwork.
    Type: Grant
    Filed: February 25, 1980
    Date of Patent: March 31, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Dieter Hohler
  • Patent number: 4251322
    Abstract: A process of treating coke oven doors and jambs with a material containing micro micron particles of graphite in a liquid carrier is described that forms a penetrating lubricating adhesive coating on the coke oven doors and jambs which acts to prevent leakage of tar and other coke by-products as heretofore common in the art and the resultant inability of maintaining a sealing relation between the doors and jambs.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: February 17, 1981
    Inventor: Michael D. La Bate
  • Patent number: 4236972
    Abstract: A cover and cover assembly fabricated from steel plate for selectively covering an opening communicating with a coke oven and cooperable with seal rim sealing surface which surrounds the opening. The cover includes a knife-like sealing edge which engages the seal rim sealing surface to provide a primary seal therefor. An area on the cover peripheral surface is generally compatible with an area of the seal rim sealing surface for providing a secondary seal. In one instance, the knife-like sealing edge supports the cover in a manner such that compatible sealing rim and cover surfaces are slightly spaced apart from each other. Tar, pitch, residue and by-products of the coking operation which may by-pass the primary seal accummulate in this gap area at the start of a coking operation to complete the secondary seal.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: December 2, 1980
    Inventor: Patsie C. Campana
  • Patent number: 4216061
    Abstract: A coke oven door, which is positioned within a door frame in a closed position, has inner and outer sealing strips which contact the door frame. The two sealing strips jointly form a gas guide duct with the door frame. The inner sealing strip forms an elastic and flexible seal which prevents solids from passing into the guide duct but which allows gas to pass thereto. The outer sealing strip forms a gas-tight nonflexible seal.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: August 5, 1980
    Assignee: Didier Engineering GmbH
    Inventor: Manfred Blase
  • Patent number: 4216062
    Abstract: A sealing means for a coke oven chuck door. The sealing means includes a metal sealing member which has springiness and flexibility and is supported cantilever fashion on the inside of the door frame. An insulation block is interposed between the sealing member and door frame. The sealing member has a knife edge flange which extends around its perimeter and is automatically aligned with a sealing surface on the main door on which the chuck door is mounted.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: August 5, 1980
    Assignee: United States Steel Corporation
    Inventors: Calvin E. Kelly, Richard W. Stanley
  • Patent number: 4211536
    Abstract: A poke hole closure assembly for a gas producer which minimizes the escape of noxious or volatile gas from the producer during a poking operation. The closure includes a block having an aperture therethrough which communicates with a poke hole in a gas producer. A closure plate is hinged to the block to block the aperture and pole hole during normal operating conditions, but is openable to enable a poker to be inserted therethrough to check the fire bed. An inert gas is delivered to a conical nozzle in the aparture to direct the gas into the poke hole, to thereby block the outward passage of noxious or volatile gas from the poke hole when the closure plate is opened. The flow of the inert gas is controlled by a valve which is opened to allow flow upon opening of the closure and is closed to block flow when the closure is sealed.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: July 8, 1980
    Assignee: McDowell-Wellman Company
    Inventor: Wallace Hamilton
  • Patent number: 4198274
    Abstract: A coke oven door construction for closing and opening in a coke oven furnace comprising a brick supporter for carrying bricks in the coke oven furnace opening which is subject to high temperatures in the coke oven furnace and thermal expansion, and a door body connected to the brick supporter and having a locking mechanism for retaining the brick supporter in the coke oven furnace opening. The door body and brick supporter are elongated and rigidly connected to each other by at least one connecting pin at one elevation along the door body and brick supporter. The door body and brick supporter are also connected to each other by a plurality of sliding connections along the length of the door body and brick supporter whereby longitudinal thermal expansion of the brick supporter is not transmitted to the door body so that the door body and brick supporter are not warped by such thermal expansion.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: April 15, 1980
    Assignee: Ikio Iron Works Co., Ltd.
    Inventor: Kazumi Ikio
  • 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: 4189457
    Abstract: A method for sealing a by-product coke oven in which a silicone material is caused to foam to form a foaming silicone composition preferably by mixing a first mixture of organohydrogensiloxane and hydroxylated organosiloxane with a second mixture of organohydrogensiloxane most desirably with a platinum catalyst, and heating the mixture to provide a volumetrically expandable foam. The volumetrically expandable foam is sprayed around the periphery of coke oven doors, slip-joints and similar points of gaseous emissions where it undergoes a foaming acting in the presence of the heat of the oven such that the foam volumetrically expands to provide a seal that prevents the emission of gas, dust, and smoke during the coking cycle.
    Type: Grant
    Filed: November 24, 1978
    Date of Patent: February 19, 1980
    Assignee: H. L. Clement Company
    Inventor: Henry L. Clement, Jr.
  • Patent number: 4186056
    Abstract: Frame has an opening therethrough and is positioned on a coke oven chamber ceiling with the opening of the frame aligned with a filling opening of the coke oven chamber ceiling. The frame has formed therein a recessed duct which surrounds the opening. A filling cover, adapted to close the opening, has extending therefrom a substantially annular projection. The duct in the frame has filled therein a displaceable material which is capable of being displaced by the projection, for example a pulverulent material. When the cover is positioned over the frame, the projection extends into and partially displaces the displaceable material, thereby sealing the cover with respect to the frame and closing the filling opening.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: January 29, 1980
    Assignee: Didier Engineering GmbH
    Inventors: Hans-Hermann Muller, Johannes Wulfmeier
  • Patent number: 4186057
    Abstract: Equipment for receiving and transporting red-hot coke, pushed out of the oven chambers of a chamber coke-oven with vertical flue, and for extracting and purifying the dust-containing gases rising from the coke. The equipment includes duct means and associated suction means for initially extracting the dust-containing gases from an extractor hood and subsequently from the container collecting the hot coke.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: January 29, 1980
    Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbH
    Inventors: Fritz Schulte, Johann G. Riecker
  • Patent number: 4176994
    Abstract: Coke oven charging apparatus includes an improved jumper pipe and charging hole sealing mechanism for conveying charging gases from an oven being charged to an adjacent oven. A substantially gas-tight coupling is formed between the larry car charging pipes and the oven charging holes, and between the jumper pipe and a charging hole in the adjacent oven, to prevent the escape of charging gases into the atmosphere and to prevent air from being drawn into the flow of charging gases. Exclusion of air reduces the temperature in the jumper pipe by preventing combustion of the charging gases, and minimizes adverse effects on the coking process in the adjacent oven.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: December 4, 1979
    Assignee: National Steel Corporation
    Inventor: William H. Sangster
  • Patent number: 4176013
    Abstract: Assembly for providing a seal between sealing surfaces on a coke oven door and the associated door jamb includes a high temperature-resistant and resilient seal body extending around the entire periphery of the door and secured between retaining members. A steel bearing strip is disposed beneath the seal body between the retaining members and is engaged at spaced-apart points therealong by a plurality of setscrews threadedly engaged through complementary openings in the door for pushing the bearing strip against the seal body and varying the pressure with which it engages the sealing surface on the door jamb.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: November 27, 1979
    Assignee: Interlake, Inc.
    Inventors: Donald R. Garthus, L. T. Robinson
  • Patent number: 4172769
    Abstract: A coke oven door seal and corresponding door jamb are disclosed which provide apparatus coaction which is self-aligning and self-cleaning. The seal is pressurized, with a relatively inert atmosphere, above the range of pressures incurred within the coke oven, thus preventing escape of pollutants. A plurality of pressure maintaining devices maintain sealed contact between the door seal and the door jamb.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: October 30, 1979
    Assignee: Koppers Company, Inc.
    Inventor: Joseph Becker, Jr.
  • Patent number: 4168208
    Abstract: An elbow cover for a coke oven ascension pipe characterized in that the opening which is covered is oval in shape and is formed at the junction of the ascension pipe and a downwardly-extending supply pipe leading to a gas-collecting main. The oval-shaped cover is provided with an immersion cup seal and a spaced sealing plate. Because of the oval shape of the opening, cleaning tools can be readily inserted into the opening to clean both the ascension pipe as well as the supply pipe.
    Type: Grant
    Filed: September 29, 1977
    Date of Patent: September 18, 1979
    Assignee: Dr. C. Otto & Comp. G.m.b.H.
    Inventors: Ludger Althoff, Theo Koddenberg, Franz-Josef Rottstegge
  • Patent number: 4152216
    Abstract: A device for sealing a steel door of a coke oven, the structure provides a sealing member disposed over the entire periphery of the steel door, said member closing the opening formed in the wall of the body of the coke oven. The sealing member includes a deformable covering material and a spring disposed within said covering material, the combination forming an elastic member, the deformable covering material being biased by the spring against the surface of the body of the coke oven about the periphery of the opening closed by the steel door, the sealing member being carried on the door. The invention further provides a deformable tar-receiving cover which prevents accumulation of tar between the door and the sealing member.
    Type: Grant
    Filed: September 9, 1977
    Date of Patent: May 1, 1979
    Inventors: Taiji Nishiura, Kazutomi Shimamura
  • Patent number: 4151047
    Abstract: Apparatus for feeding bituminous schist to a series of retorts each equipped with a rotary distribution spout and a central feed channel, the retorts radiating from a central schist distributing tower. At least one hopper communicates with a central feed channel communicating with the retort, and is laterally offset relative to the longitudinal axis of the retort. Conveyor belts are provided for conveying schists from the central distributing tower to the hopper or the hoppers of each retort.
    Type: Grant
    Filed: August 5, 1977
    Date of Patent: April 24, 1979
    Assignee: S.A. des Anciens Etablissements Paul Wurth
    Inventors: Edouard Legille, Rene Mahr
  • Patent number: 4145258
    Abstract: In a coke oven of the type comprising an oven opening, an oven door for closing the oven opening, a knife-edge surrounding the oven door for forming a seal for preventing leakage of oven gas, there are provided a conduit arranged along the outside periphery of the oven opening and provided with a plurality of gas ejection nozzles, and means for supplying compressed gas to the conduit. The gas ejection nozzles are directed such that gas is blasted to the seal.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: March 20, 1979
    Assignee: Mitsubishi Kasei Kogyo Kabushiki Kaisha
    Inventors: Koretoshi Fujishiro, Masamitsu Hiyoshi
  • Patent number: 4124451
    Abstract: The opening for charging a coking chamber of a coking oven is closed by closure means and a lock chamber is arranged outside the closure means for preventing any emissions from the coking chamber seeping past the closure means to pass to the outer atmosphere.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: November 7, 1978
    Assignee: G. Wolff Jr. Kommanditgesellschaft
    Inventors: Kurt Dix, Werner Hoffmann
  • Patent number: 4111709
    Abstract: A lute for coke ovens and the like is of clay-like consistency and contains a blowing agent which produces gas at least within the temperature range 160.degree. to 290.degree. C, and can appreciably cut pollution.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: September 5, 1978
    Assignee: Coal Industry (Patents) Limited
    Inventors: David Watkin Price, Newton John Hodges, Robert Furley
  • Patent number: 4110173
    Abstract: A sealing closure for an opening of a coking oven includes a frame mounted on the coking oven about the opening, a door receivable in the frame with a clearance therefrom in a closing position, and an arrangement for sealing the clearance. The sealing arrangement consists of a sealing member including a rigid support element and a sealing element of a resiliently yieldable material mounted on a marginal portion of the support element and adapted to sealingly contact a contact surface of the frame in the closing position of the door. The support element is connected to the door for an adjustment of the position thereof, and is retained in a selected adjusted position. A marginal portion of the support element is received in an elongated recess and has longitudinally distributed projections which are accommodated in a plurality of cutouts in the sealing element, the cutouts extending from the recess to a sealing surface contacting the contact surface of the frame.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: August 29, 1978
    Assignee: G. Wolf Jr. Kommanditgesellschaft
    Inventor: Kurt Dix
  • Patent number: 4106998
    Abstract: 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: Grant
    Filed: October 21, 1974
    Date of Patent: August 15, 1978
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Yutaka Okada, Kyoji Sasaguri, Kazuo Ishihara
  • Patent number: 4096040
    Abstract: An improved tripper beam arrangement for actuating the slats of a slatted top quench car.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: June 20, 1978
    Assignee: United States Steel Corporation
    Inventor: John A. Grosko
  • Patent number: 4087333
    Abstract: 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: Grant
    Filed: May 27, 1976
    Date of Patent: May 2, 1978
    Assignee: Wilputte Corporation
    Inventor: Roy Naevestad
  • Patent number: 4087334
    Abstract: A first cylindrical drum member having an inlet portion for receiving materials to be treated, such as preheated coal and char includes a longitudinal axis and an outlet portion through which the treated materials are discharged into the inlet end portion of a second cylindrical drum member. The second drum member is independently supported for rotation relative to the first drum member and has a longitudinal axis coplanarly aligned with the longitudinal axis of the first drum member such that the drum members are concentrically positioned in tandem relative. A sealing assembly is connected to the first and second drum members for longitudinal movement with the drum members during expansion and contraction of the drum members as they are subjected to different temperatures.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: May 2, 1978
    Assignee: Dravo Corporation
    Inventors: Richard Francis Harig, Arthur Jacob Pietrusza, Albert Harry Riebel, Jr., Harry James Kent
  • Patent number: 4086231
    Abstract: A coke oven door for a coke oven which has an oven opening with a receiving frame extending around the opening comprises a door body with a sealing plate secured to the face of the door body which is adapted to close the oven opening. The sealing plate is of thin metal material and is held in spaced relationship to the front face of the door body by spacers. The plate includes an annular peripheral portion with an inturned flange directed inwardly toward the receiving frame. Spring biasing means mounted on the door engage against the rear edge of the flange at spaced locations around its periphery and bias the flange inwardly into sealing engagement with the receiving frame.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: April 25, 1978
    Inventor: Takatoshi Ikio
  • Patent number: 4080266
    Abstract: A closure for an opening of a coking oven includes a door receivable in an opening of a circumferentially complete frame mounted on the coking oven, with a clearance therefrom. The clearance is sealed by a sealing member adjustably mounted on the door and contacting a contact surface of the frame in the closing position of the door. The contact surface of the frame and the sealing member are protected from deposition of volatile byproducts of the coking process thereon by an outwardly projecting circumferentially complete stepped ridge provided on the frame in between the open end of the opening and the contact surface of the frame. At least one groove may circumferentially surround the open end of the opening, and the door may have regions juxtaposable with the steps of the ridge and with the groove and having configurations complementary to the ridge and the groove to define a labyrinthine passage for the volatile byproducts between the open end and the contact surface of the frame.
    Type: Grant
    Filed: January 14, 1977
    Date of Patent: March 21, 1978
    Assignee: G. Wolff Jr. Kommanditgesellschaft
    Inventor: Kurt Dix
  • Patent number: 4067778
    Abstract: A coke oven door has a primary seal that includes a first metal knife edge in contact with a door jamb first sealing surface, and a secondary seal that includes a second metal knife edge in contact with a door jamb second sealing surface. The plenum or space between the sealing knife edges is maintained at super atmospheric pressure by flowing coke oven gas into the plenum. In a modification of the invention, the secondary seal includes a metal strp in contact with an elastic material; the plenum between the sealing surfaces being also pressurized above atmospheric pressure and purged of coke oven gas.
    Type: Grant
    Filed: December 8, 1976
    Date of Patent: January 10, 1978
    Assignee: Koppers Company, Inc.
    Inventors: Joseph Van Ackeren, Linwood G. Tucker
  • Patent number: 4058205
    Abstract: A process and apparatus for decomposing kerogen and recovering oil, high BTU gas and energy for the process wherein a crushed oil shale is fed to a rotary preheater (300.degree. to 350.degree. F.) hence into a rotary retort (850.degree.-1050.degree. F.) where the kerogen is decomposed and the oil evaporated, removed and condensed. From the retort the crushed shale goes to a hopper where any residual oil is stripped out by super heated steam leaving a char on the crushed shale. The stripped shale is fed into a furnace wherein the char is burned to provide heat for the process. To supplement the char and provide enough BTU's for the process, it is necessary to add a small amount of coal to the feed to the process. The hot gases from the furnace first pass into contact with the rotary retort and hence indirectly heat the oil shale in the retort. The hot furnace gases (or a portion thereof) then pass into direct contact with the crushd oil shale feed in the preheater.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: November 15, 1977
    Inventor: Thomas G. Reed, Jr.
  • Patent number: 4033827
    Abstract: Apparatus for providing a good seal between sealing edges and sealing surfaces of a coke oven door includes an improved high temperature resistant, compressible and deformable sealing member between the sealing edge and sealing surface. The sealing member includes a layer of high temperature resistant compressible insulating material between an outer layer of steel foil and a perforated steel strip. In one embodiment there is a second layer of insulating material between the perforated steel strip and a second outer layer of steel foil.
    Type: Grant
    Filed: February 2, 1976
    Date of Patent: July 5, 1977
    Inventor: Herbert A. White, Jr.
  • Patent number: 4032409
    Abstract: A sealing device for a coke oven door comprises first and second spaced apart metal sealing blades having respective substantially aligned sealing edges adapted to extend outwardly from the edge of the coke oven door. A metal spacer is mounted between the first and second sealing blades at a location spaced inwardly from the sealing edges and an elastic sealing strip is located between the two blades and has an outer elastic sealing edge which is substantially in alignment with or projects outwardly slightly beyond the blade sealing edges, and bears against the door frame.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: June 28, 1977
    Assignees: Firma Carl Still, Ruhrkohle AG
    Inventors: Johannes Knappstein, Heinrich Tewes, Robert Woikowski
  • Patent number: 4028193
    Abstract: Construction of coke oven door which is characterized in that there is mounted an adiabatic layer on the inner surface of a base plate of a metallic door body in addition to conventional adiabatic door plug, the inner surface of the adiabatic layer being provided with a guard plate. A frame-like knife edge is installed on the periphery of the guard plate, the knife edge being formed at suitable intervals with U-shaped slots on the base plate side. The knife edge is further formed with pairs of projections on its outer surface on both sides of the U-shaped slots. A plurality of adjustable spring units are equipped on the side walls of the metallic door body and a hook lever, whose upper end ring portion is fitted on the upper end of the spring units and whose lower end hook engages with the projections, is arranged alongside the spring units.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: June 7, 1977
    Assignee: Koritsu Kikaikogyo Co., Ltd.
    Inventor: Konno Nagayoshi
  • Patent number: 4026769
    Abstract: A sealing frame includes a flexible metallic profiled bar having a bent transverse cross section formed by a longitudinally extending apex joining longitudinally extending arms. Attachment bolts extend through the bar at the apex and are threaded into a coke-oven door element. Tightening of the bolts stretches the bar by increasing the angle of the apex.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: May 31, 1977
    Assignee: Didier Engineering GmbH
    Inventor: Franz Steimann
  • Patent number: 4016045
    Abstract: A sealing arrangement for a door of a coke oven chamber includes a fluid channel around the door carrying gases from a coke oven chamber. Means is provided that subdivides the channel into separate fluid channelways and means is provided for conducting the gases from each channelway into an adjacent end heating flue in the heating walls defining the coke oven chamber.
    Type: Grant
    Filed: February 18, 1976
    Date of Patent: April 5, 1977
    Assignee: Koppers Company, Inc.
    Inventor: Joseph Van Ackeren
  • Patent number: 4016046
    Abstract: A coke oven door has a primary seal that includes a first metal knife edge in contact with a door jamb first sealing surface, and a secondary seal that includes a second metal knife edge in contact with a door jamb second sealing surface. The plenum or space between the sealing knife edges is maintained at super atmospheric pressure by flowing coke oven gas into the plenum. In a modification of the invention, the secondary seal includes a metal strip in contact with an elastic material; the plenum between the sealing surfaces being also pressurized above atmospheric pressure and purged of coke oven gas.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: April 5, 1977
    Assignee: Koppers Company, Inc.
    Inventors: Joseph Van Ackeren, Linwood G. Tucker