Feeding And Discharging Patents (Class 202/262)
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Patent number: 4523979Abstract: Retorted shale particles are recovered from a retort and delivered to a gas lift for transport to a fluidized combustor by passage, serially, through a sealing vessel, a crusher preferably operating at retort pressure, and a surge vessel. In the sealing vessel, a sealing gas is introduced, and after commingling with the shale, the gas passes countercurrently to the shale and enters the retort, thus sealing the retort gases in the retort while separating the retorted shale from the retort gases. Retorted shale from the sealing vessel is transported to a crusher, wherein the shale is reduced in size to that suitable for combustion under fluidized conditions. To prevent the crushed shale from packing, the shale is passed to a surge vessel, wherein the crushed shale is held as a fluidized bed, from which the crushed shale is continuously withdrawn at a regulated rate and introduced into the gas lift leading to the fluidized combustor.Type: GrantFiled: January 9, 1984Date of Patent: June 18, 1985Assignee: Union Oil Company of CaliforniaInventors: Roland F. Deering, John H. Duir
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Patent number: 4502920Abstract: An improved retort apparatus for recovering oil from crushed oil shale moved by gravity through a passageway of an elongated housing includes a control assembly connected adjacent the outlet end of the housing to control the rate of movement of the crushed oil shale through the passageway. A plurality of heat exchangers are located in the housing for transferring heat in sequence to or from the crushed oil shale. The heat exchangers are spaced to define a drying zone, a preheating zone, a hydrocarbon recovery zone, and a waste heat recovery zone. A pump recirculating circuit is provided for passing waste heat recovered from the waste heat recovery zone to the preheating zone. An auxiliary heating assembly connected to the heat exchangers in the hydrocarbon recovery zone delivers sufficient heat to raise the temperature of the crushed oil shale moving through the hydrocarbon recovery zone to the critical temperature for separating hydrocarbons in vapor form therefrom.Type: GrantFiled: January 14, 1983Date of Patent: March 5, 1985Assignee: Edwards Engineering CorporationInventor: Ray C. Edwards
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Patent number: 4494905Abstract: An apparatus for stopping a truck such as a larry car for coke oven operation at a preselected position in relation to an object such as a coke oven. The apparatus includes stopping members such as blocks placed along the path of movement of the truck and a clamping mechanism carried by the truck and adapted to cooperate with one of the blocks to locate and stop the truck. The clamping mechanism includes a pair of levers swingable about axes perpendicular to the longitudinal axis of the truck by the operation of a fluid-operated cylinder and adapted to clamp the selected block from the front and rear sides of the block. In operation, the truck is temporarily stopped by a brake at such a position that the selected block is positioned between two levers and then the levers are swung toward each other to clamp the block therebetween to locate and stop the truck precisely at the designated position. During the running of the truck, the levers are laterally swung to clear the blocks.Type: GrantFiled: June 8, 1982Date of Patent: January 22, 1985Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Hiromasa Yamaji, Yuji Kobayashi
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Patent number: 4495032Abstract: A shale oil retort apparatus is provided for retorting oil shale under airtight conditions. The retort apparatus employs a split hub wheel device which allows for the axial feeding of crushed oil shale and the axial dispensing of spent oil shale. The retort apparatus utilizes a rotatable shaft on a stationary axle, said shaft containing three spokes that are set approximately equidistant apart. The spokes serve to feed raw oil shale, dip it into a hot oil bath and dispense spent oil shale out of the apparatus.Type: GrantFiled: October 17, 1983Date of Patent: January 22, 1985Inventor: Carl G. Everman
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Patent number: 4475987Abstract: Fragile agglomerates with crushed rock fragments, such as fines which are subsequently agglomerated and which result in the crushing of rock fragments, such as oil shale prepared for retorting are mixed and delivered onto conveying means, such as a travelling grate by charging the rock fragments into a bin which delivers through a choke-feed onto the conveyor or travelling grate by introducing the agglomerates through a series of space conduits or tubes terminating inside the bin below the level of the lump material or fragments in the bin where the rock fragments have a downward travel such as to enable the aggregates to diffuse from the ends of the spaced pipes into and through the fragments and while so separated and diffused through the fragments move with the fragments onto the grate.Type: GrantFiled: December 29, 1982Date of Patent: October 9, 1984Assignee: Dravo CorporationInventor: Frank Forbes
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Patent number: 4474524Abstract: A system for discharging a thermal decomposition residue containing carbon residue and steel wire balls, the discharge system including: a discharge mechanism including a double shaft screw conveyer having respective screws thereof supported at one end thereof and located contiguous to a residue outlet of a thermal decomposition unit, a housing hermetically connected to the residue outlet of the thermal decomposition unit and enclosing the double shaft screw conveyer with ample space on the upper side thereof; a first outlet provided in a front bottom portion of the housing for discharging the carbon residue transferred by lower portions of the double shaft conveyer; a second outlet provided at the discharging free end of the double screw conveyer for discharging the steel wire balls transferred by upper portions of the double screw conveyer; a seal provided in said first outlet for shielding the interior of the housing from ambient atmosphere; and a water-sealer including a water bath, a chute connected to tType: GrantFiled: May 7, 1982Date of Patent: October 2, 1984Assignees: Kabushiki Kaisha Kobe Seiko Sho, Mechanical Social System FoundationInventors: Shigezo Kawakami, Kunihiko Tsuji, Katuhiko Shimojima, Mitsuru Fukuda, Hiroshi Kawaguchi
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Patent number: 4469559Abstract: A container for transporting hot coke has a cylindrical portion and a narrowing conical portion downwardly extended therefrom. A rotation ring carrying grippers is positioned in the upper region of the container, which is operated during the filling of the container with coke.Type: GrantFiled: September 27, 1982Date of Patent: September 4, 1984Assignee: Krupp-Koppers GmbHInventors: Friedrich Jokisch, Bernhard Heinrichs
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Patent number: 4468288Abstract: Moist bulk coal is supplied into a fluidized bed drier into which is introduced a first heat carrier gas to thereby dry the moist coal to form dried coal. The dried coal is discharged from the drier and is transferred to a generally horizontal bulk material conveyor. A second heat carrier gas is injected through the bottom of the bulk material conveyor, thereby transporting the coal generally horizontally and preheating the coal to form preheated coal. The preheated coal is then discharged from the bulk material conveyor and is filled into a selected charging opening of a coke oven battery.Type: GrantFiled: March 16, 1982Date of Patent: August 28, 1984Assignee: Didier Engineering GmbHInventors: Manfred Galow, Claus Flockenhaus, Joachim Meckel, Horst G. Joseph, Gunter Gabriel
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Patent number: 4465558Abstract: Total load distribution of coke guide cars can be substantially evenly effected in accordance with the present invention which comprises a pair of parallel beams whose inner portions are positioned under and perpendicular to upper beams of the guide car and outer portions are bent down at a slant and extend to a third rail laid outside of a quencher track, a plurality of girders mounted between and spanning the horizontal portions of the parallel beams, plural pairs of rails mounted under the girders and adapted to hang main instruments of the guide car, and pairs of fitting plates hung from the upper beams and to which the inner portions of the parallel beams are jointed by means of joint pins.Type: GrantFiled: August 22, 1983Date of Patent: August 14, 1984Assignee: Koritsu Machine Industries LimitedInventor: Yoshiteru Kitano
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Patent number: 4462869Abstract: A method and apparatus for conveying preheated coal particles to a coking chamber through an enclosed pipeline by means of a pressurized inert carrier gas, wherein the coal particles are charged into the top of the coking chamber through a portion of the pipeline wherein at least the end of which is disposed vertically or not more than 30.degree. from vertical. The advantages of the top charging technique include one or more of the following: reduced carryover of fine coal during charging, increased density of the charge of coal to be coked, reduced weight of carrier gas per unit weight of coal, improved uniformity of coal bed level throughout the coking chamber, and reduced carbon deposits on surfaces of the chamber above the coal charge and in the gas off-takes.Type: GrantFiled: April 25, 1977Date of Patent: July 31, 1984Assignee: Krupp Wilputte CorporationInventors: Rufus F. Davis, Jr., Donald G. Marting, Harvey S. Auvil
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Patent number: 4460437Abstract: A larry car (3) for transporting a charge of pre-heated coal along the top of a battery of coke ovens, from a storage installation including a group of metering bins (1) at one or more filling stations above the battery, to a corresponding group of charge holes for the oven chamber to be charged, the car including a corresponding group of coal transfer hoppers (4) each having valved inlet and discharge apertures (5,21), a sealed connection (2) between each metering bin and transfer hopper, an inert gas reservoir (10) connectable via a valved manifold (13,14) to each transfer hopper, a valved connection (7,8,9) for charging the reservoir, and a valved connection (15,16,17) to permit dusty gas to be displaced into the storage bunkers, and control means for the various valved connections to maintain continuous isolation of the interior of each transfer hopper from the atmosphere, to permit dust-laden gases to escape into the storage installation, and to cause inert medium to displace coal discharged from the traType: GrantFiled: December 21, 1982Date of Patent: July 17, 1984Assignee: Otto-Simon Carves LimitedInventor: David B. Corry
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Patent number: 4456505Abstract: In a coking oven with a horizontal chamber the chamber is provided with a filling hole having a cylindrical portion with the diameter D and a reduced portion downwardly extending therefrom into the chamber over the height H. The ratio between D and H.ltoreq.1.5.Type: GrantFiled: October 8, 1982Date of Patent: June 26, 1984Assignee: Krupp-Koppers GmbHInventor: Wilhelm Jakobi
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Patent number: 4452670Abstract: Coal fines developed from the processing of coal through a preheating system are accumulated in a secondary cyclone system. The coal fines, at an elevated temperature, are mixed with a hydrocarbon organic binder and compressed into larger particles of sufficient structural integrity and mass to be fed directly through pneumatic pressure coke oven coal charging lines without significant size reduction, resulting in the elimination of fine coal build-up in one coke oven standpipes and charging mains as well as overloading of the charging liquor system.Type: GrantFiled: June 9, 1980Date of Patent: June 5, 1984Assignee: Koppers Company, Inc.Inventors: Joseph E. Kovacic, Michael Perch, Bernard R. Kuchta
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Patent number: 4439276Abstract: An arrangement for filling at least one coke oven chamber has a transport device arranged to transport coal, a chute member located under the transport device to guide coal to a filling opening of the coke oven chamber, at least one closing member arranged between the chute member and the filling opening of the coke oven chamber, and a sliding plate moveable in a housing above the chute member between open and closed positions, wherein the sliding plate and the housing in its region in which the sliding plate is in its open position are inclined toward a horizontal.Type: GrantFiled: June 1, 1982Date of Patent: March 27, 1984Assignees: Bergwerksverband GmbH, Didier Engineering GmbHInventor: Manfred Galow
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Patent number: 4435250Abstract: A device for adjusting the position of a track mounted car from a first position where the car is initially spotted by conventional braking means to a second predetermined position on the track which must be reached within close tolerances. An arm which may be pivoted in a vertical arc parallel to the track is pivotally attached to the car at its one end and at its other end it has preferably cone-shaped feeler means which engages a protrusion fixed adjacent to the track. A preferably vertical gravity based reference position is selected for the arm, and a sensing means for producting a direct current output signal proportional in magnitude to angular displacement of the arm from this position and corresponding in polarity to direction of displacement is provided.Type: GrantFiled: May 6, 1982Date of Patent: March 6, 1984Assignee: Koppers Company, Inc.Inventor: Carl Lindgren
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Patent number: 4412770Abstract: A method and an apparatus is provided for charging particulate coal through ceiling holes into a coke oven. A conveyor above the coke oven ceiling is connected with each ceiling hole by a conduit. Mounted in the conduit is a first closure member which is movable to and from a position in which it permits gravity flow of coal from the conveyor to the ceiling hole. Also mounted in the conduit is a second closure member movable to and from a position in which it blocks the escape of gas from the ceiling hole. To charge, the second member is first moved to open position and thereupon the first member; when charging is completed the members are moved in reversed sequence to their closing positions.Type: GrantFiled: March 1, 1982Date of Patent: November 1, 1983Assignees: Bergwerksverband GmbH, Didier Engineering GmbHInventors: Manfred Galow, Nikolaus Stefancik
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Patent number: 4410398Abstract: A method and apparatus for assisting an operator in a coke cutting operation wherein both a graphic and audio display of the operation are provided. The vibration of the coke drum is measured and after filtering, is recorded on a chart recorder and its amplitude converted to a related audio signal.Type: GrantFiled: February 22, 1982Date of Patent: October 18, 1983Assignee: Shell Oil CompanyInventors: Arthur H. T. Chipman, Ernest M. Bony
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Patent number: 4391674Abstract: A coke delivery device 10 includes a swingable chute 16 for guiding coke pushed from a coke oven through a coke rack 12 into a quench car 24.The chute 16 is drivingly interconnected with a moveable fume hood 14 whereby lowering the fume hood over the quench car positions the chute 16 for coke guiding. Raising the fume hood moves the chute from the coke guiding position to a storage position concurrently spreading coke pushed into the quench car and dumping any coke remaining on the chute into the quench car.Type: GrantFiled: February 17, 1981Date of Patent: July 5, 1983Assignee: Republic Steel CorporationInventors: Rolf Velmin, Michael S. Kovatch, Gus H. Mautz, Jr.
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Patent number: 4388153Abstract: A coke oven battery servicing apparatus includes a coke catching and collecting bucket movable from a first position adjacent the oven to a second position clear of the oven and a coke guide cage having an opening therein which is complementary to the bucket. When in the first position the bucket collects coke spillage during oven door extraction and door jamb cleaning. When the coke guide is positioned for pushing, the bucket is moved into a third position in which the bucket is removably inserted into the aforementioned opening to become integral with the coke guide cage. The collected coke spillage is then pushed together with the coke from the oven through the guide means for disposal in a quenching receptacle or car.Type: GrantFiled: November 20, 1981Date of Patent: June 14, 1983Assignee: Dravo CorporationInventors: Gilbert Blair, Martin C. Dusel
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Patent number: 4379023Abstract: 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: GrantFiled: March 1, 1982Date of Patent: April 5, 1983Assignee: Firma Carl Still GmbH & Co. KGInventors: Josef Stratmann, Willi Brinkmann
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Patent number: 4375388Abstract: A carbonizing chamber is charged with powdered coal, and then the powdered coal is loaded down with a predetermined load from above with vibration to control the packing density of the powdered coal by means either of a pressing and vibrating member provided on a leveling beam body or a beam body arranged to act also as a pressing and vibrating member.Type: GrantFiled: September 29, 1981Date of Patent: March 1, 1983Assignee: Nippon Steel CorporationInventors: Hisanori Hara, Takafumi Kawamura, Osamu Takamori, Wako Ieko
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Patent number: 4372819Abstract: A projectable device for aligning rail mounted equipment with track side structures, and, in particular, for aligning a coke oven door extractor, pusher ram, or jamb cleaner with a coke oven door. In one embodiment, a rod having an attached terminal fork is extended horizontally toward the door so as to indicate alignment when an attached aligning plate is engaged by the fork. The rod projects from a piston and cylinder combination, and it is automatically withdrawn if alignment is correct. In a second embodiment, an arm having an attached terminal fork is swung downwardly in a vertical arc to engage the aligning plate and thereafter automatically returned to its initial, vertical position, if alignment is correct.Type: GrantFiled: March 22, 1982Date of Patent: February 8, 1983Assignee: Koppers Company, Inc.Inventor: Rodney C. Irwin
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Patent number: 4369094Abstract: Superheated steam is continuously made to flow through the housing of a device which conveys coal from a bunker to the charging holes of coke ovens. While no charging takes place, the steam is vented from the housing and condensed. When charging does take place, the steam enters the coke oven with the coal, is then discharged from the coke oven, and thereupon condensed. The pressure of the steam in the housing may be greater than ambient atmospheric pressure and/or the pressure of the coking gas in the oven, to reliably prevent the entry of the air and/or the gas into the housing and thus to avoid the formation of dangerous gas mixtures therein.Type: GrantFiled: December 10, 1981Date of Patent: January 18, 1983Assignees: Bergwerksverband GmbH, Didier Engineering GmbHInventors: Claus Flockenhaus, Gunter Gabriel, Gunter Ziolkowski, deceased, Paul-Heinz Heesen, Joachim F. Meckel, Manfred Galow
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Patent number: 4366029Abstract: A pivoting back one-spot coke quenching car for use in coke batteries having a coke bench structure with clearances which make the use of one-spot cars impractical. The novel structure of the present invention permits the car to have sufficient volume to receive coke in one-spot while providing a pivoting back that allows the car to tilt, travel and dump in coke batteries that have close clearances.Type: GrantFiled: August 31, 1981Date of Patent: December 28, 1982Assignee: Koppers Company, Inc.Inventors: Robert P. Bixby, Eugene Ziegler
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Patent number: 4363702Abstract: 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: GrantFiled: March 31, 1981Date of Patent: December 14, 1982Inventors: 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
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Patent number: 4358345Abstract: An arrangement for feeding glowing coke has a cooling shaft into which coke and cooling gas are received, a coke transporting container arranged on the shaft and having a closable bottom opening, and a closing device arranged in the cooling shaft below the coke transporting container and including a housing sealed from atmosphere, and a closing plate which is raisable and lowerable and also displaceable in substantially horizontal direction in the housing.Type: GrantFiled: December 3, 1980Date of Patent: November 9, 1982Assignee: Krupp-Koppers GmbHInventor: Johannes Lorrek
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Patent number: 4356063Abstract: A method of operating a conveying and storage system associated with a coal pre-heating installation, supplying pre-heated coal to a coking oven battery, the system including a series of conveyors (16, 17, 19, 20) for carrying coal from the pre-heating installation (10, 11) into a plurality of storage hoppers (21) and metering bins (22), a plurality of interconnecting pipes (29, 30, 31, 46, 47) ensuring maintained flow of gases through the system, there being an inert gas generator (26) for introducing inert gas into the series of conveyors, the method including the step of discharging a mixture of inert and combustible gases from the system into a gas collecting main (24) of the coking oven battery (23) to which pre-heated coal is supplied from the metering bins (22).Type: GrantFiled: October 2, 1980Date of Patent: October 26, 1982Assignee: Otto-Simon Carves LimitedInventor: David B. Corry
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Patent number: 4347105Abstract: 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: GrantFiled: November 12, 1980Date of Patent: August 31, 1982Assignee: Dr. C. Otto & Comp. G.m.b.H.Inventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
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Patent number: 4340445Abstract: In a car for receiving incandescent coke and transporting it from a coking chamber to a quenching site a wall structure (3) surrounded by a girder (8) at the lower end portion thereof and removably mounted on a bunker (6) which in turn is surrounded by a girder (12) at the upper portion thereof so that the girder (8) is unrestricted on the girder (12) for linear expansion under the action of heat from the incandescent coke. Examples of the girders (8) and (12) are furnished.Type: GrantFiled: January 9, 1981Date of Patent: July 20, 1982Inventors: Valery N. Kucher, Alexandr Z. Popenko, Georgy R. Reiman, Mikhail I. Durachenko, Grigory D. Zhovtobrjukh
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Patent number: 4336107Abstract: A projectable device for aligning rail mounted equipment with track side structures, and, in particular, for aligning a coke oven door extractor, pusher ram, or jamb cleaner with a coke oven door. In one embodiment, a rod having an attached terminal fork is extended horizontally toward the door so as to indicate alignment when an attached aligning plae is engaged by the fork. The rod projects from a piston and cylinder combination, and it is automatically withdrawn if alignment is correct. In a second embodiment, an arm having an attached terminal fork is swung downwardly in a vertical arc to engage the aligning plate and thereafter automatically returned to its initial, vertical position, if alignment is correct.Type: GrantFiled: September 2, 1981Date of Patent: June 22, 1982Assignee: Koppers Company, Inc.Inventor: Rodney C. Irwin
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Patent number: 4321112Abstract: A device for opening, closing and cleaning fill holes of a coke oven comprises a self-supporting carrying frame extending above the fill holes and supporting a runway for an overhead crane and further supports spring-biased bell seals for respective fill holes; a manipulation unit is suspended on the crane and includes a vertical thrust drive and a rotary drive coupled respectively to a manipulation head which is driven into engagement with actuation means for respective bell seals to selectively open and close the bell and to rotate simultaneously cleaning knives in each fill hole.Type: GrantFiled: April 24, 1981Date of Patent: March 23, 1982Assignee: Bergwerksverband GmbHInventors: Manfred Galow, Klaus Dahl, Wolfgang Rohde, Diethard Habermehl, Werner Kucharzyk, Werner Siebert
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Patent number: 4314787Abstract: A coal-charging apparatus includes a charging car with charging bins to discharge coal through filling tubes into charging holes in the roof of an oven chamber. A feed-screw conveys coal from the bottom of a charging bin to a trough communicating with a fixed filling tube. A peripheral trough on the bottom of this tube is filled with sand or liquid and receives a peripheral seal lip on the inside of a movable sealing tube. Hooks on the outside and at the top of the movable sealing tube engage a ring that is suspended by bearings at both ends of a stirrup. The filling tube is raised and lowered by a linkage system that includes a lever supported by a platform and operated by a piston and cylinder assembly. A closure plate is operated by a linkage including a lever supported by a platform and engaged with a piston and cylinder assembly. The closure plate is a leading edge that engages below a wall just above the fixed charging tube.Type: GrantFiled: January 29, 1980Date of Patent: February 9, 1982Assignee: Dr. C. Otto & Comp. GmbHInventors: Hans-Jurgen Kwasnik, Hans-Gunter Piduch
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Patent number: 4314887Abstract: Adjacent alternating rows of relatively coarse and fine coal are deposited onto a horizontal moving grate running through a coking furnace.Type: GrantFiled: August 14, 1979Date of Patent: February 9, 1982Assignee: Peabody Coal Company, Inc.Inventors: Jack R. Haley, Jimmy B. Smith, Vaughn Mansfield
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Patent number: 4312713Abstract: An improved duct system is provided for collecting gases from the coke side of a battery of coke-oven chambers with vertical flues in which a coke guide is mounted for movement along the ovens on rails, in which the coke transport car is mounted for movement on rails along the ovens adjacent the coke guide, and in which a stationary main collection duct with a belt covered slot is provided adjacent the transport car rails. An extraction hood is provided for covering the transport car and connecting the discharge end of the coke guide with the transport car. The hood has an integral connecting line adapted to be connected between a gas collection duct above the coke guide and a gas transfer device movable on the main duct under the belt for directing the gases into the main duct. Also integral with the extraction hood are two gas outlet ducts, one on each side of the connecting line, separate from the connecting line, for connecting the extraction hood to the gas transfer device.Type: GrantFiled: January 16, 1980Date of Patent: January 26, 1982Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Georg Mayer, Horst Schroter, Helmut Laux
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Patent number: 4306645Abstract: An arrangement is provided for controlling the quantity and period of charging of pitch coke furnaces whose pitch supply conduits are connected to a heatable ring conduit and are in connection with at least one pitch reservoir via this ring conduit. In the pitch supply conduits, pitch dosing containers are arranged, which containers rest on bearing-pressure measuring means. Via these bearing-pressure measuring means, the respective filling level of the pitch dosing containers is determinable.Type: GrantFiled: July 28, 1980Date of Patent: December 22, 1981Assignee: Voest-Alpine AktiengesellschaftInventor: Johann Zendron
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Patent number: 4295773Abstract: A solids feeder and method for transporting particulate solids from an elevated solids feed reservoir and introducing the solids upwardly into the bottom of a solids upflow vessel. The feeder includes a stationary feed cylinder axially aligned with a bottom solids inlet of the upflow vessel and fitted with a vertically reciprocatable piston which alternately (1) retracts to allow the feed cylinder to receive solids from the feed reservoir by gravity flow through a feed chute and (2) extends to displace the solids upwardly into the upflow vessel. Horizontally reciprocatable slide plates prevent backflow of solids during the filling of the feed cylinder.Type: GrantFiled: November 9, 1979Date of Patent: October 20, 1981Assignee: Union Oil Company of CaliforniaInventor: Roland O. Dhondt
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Patent number: 4287024Abstract: A plurality of sole flue-heated, non-recovery coke ovens constructed in side-by-side relation in a battery have their chimney uptake outlets connected to a common combustion tunnel extending longitudinally of and above the battery and connected to stacks at spaced intervals along its length. Each oven has a bypass flue directly connecting the top of its coking chamber to the combustion tunnel, and a normally closed valve in each bypass is operable to selectively connect the coking chamber to the tunnel to permit charging gases to be drawn from the chambers to be burned in the tunnel and stack. The bypass valve is closed during coking so that the partially burned gases from the crown of the coking chambers are led through downcomers in the oven walls to the sole flues where a controlled amount of combustion air can be admitted to promote the continued burning process and provide maximum heat in the sole flues.Type: GrantFiled: June 22, 1978Date of Patent: September 1, 1981Inventor: Buster R. Thompson
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Patent number: 4276123Abstract: In a coke oven coke side door machine, a bottom tray is mounted to collect spillage that results from the removal of coke oven doors as well as the residue buildup that is scraped from the door seals and bottom plugs during the door cleaning operation. Trays, in the form of inclined planes, are extended from the door machine to catch the coke spillage from the oven and to catch the residue buildup which is scraped from the door jambs during the jamb cleaning operations. This material gravitates down the trays into the catch pan. A scraper then pushes the material accumulated in the catch pan to one end of that catch pan where a conveyor carries it to a dump bucket. The dump bucket can be dumped when the door machine is positioned adjacent a quench car. All of the above apparatus is mounted onto and within the confines of the door machine.Type: GrantFiled: September 22, 1980Date of Patent: June 30, 1981Assignee: Koppers Company, Inc.Inventor: William G. Emery
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Patent number: 4276121Abstract: An extendible hopper is mounted to the undercarriage of a pusher machine and is operable to be extended to engage the face of the coke oven battery, between the buckstays and just below the door jamb, to catch hot coke that spills out of coke ovens as the door is removed and the pusher ram is retracted. A bin is also mounted to the undercarriage of the pusher machine to receive the hot coke collected by the extendible hopper. Quench sprays are mounted to the bin to quench the hot coke, and suction means are mounted to the bin to draw off pollutants that emanate from the hot coke and the quench thereof.Type: GrantFiled: September 22, 1980Date of Patent: June 30, 1981Assignee: Koppers Company, Inc.Inventor: Robert C. Rogers
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Patent number: 4270982Abstract: This invention provides an apparatus for the single spot servicing of a coke oven on the coke side of an oven battery. The apparatus includes a turret with oven servicing heads affixed thereto and mounted for rotational movement on the free end of a support arm which is mounted for pivotal movement about a fixed point on the car. Pantographic like linkage is provided to coordinate the rotational and pivotal movement of the turret assembly. A coke guide carriage is mounted for reciprocal movement along a rail system consisting of two rails in an angled relationship. The carriage and turret are mounted on the car to permit the sequential indexing of these servicing devices for use at a selected oven in the battery without repositioning of the servicing car relative to the battery.Type: GrantFiled: September 22, 1980Date of Patent: June 2, 1981Assignee: Dravo CorporationInventors: Ira Lakin, Gilbert Blair
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Patent number: 4263852Abstract: A side shiftable railway car in which the bolsters resting on the wheeled trucks engage a movable center plate on the underside of the car. The center plate may be slid sideways along retaining flanges welded to the underside of the car and locked in place by heavy keeper pins adapted to be inserted and extracted manually with levers.Type: GrantFiled: February 1, 1979Date of Patent: April 28, 1981Assignee: The Maxson CorporationInventor: Philip J. Kramlinger
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Patent number: 4260458Abstract: A coke oven, comprises a housing having an interior vertically elongated coke oven chamber with a plurality of vertically extending binding walls subdividing the oven chamber into a plurality of heating flues. A nozzle in each of the binder walls between the heating flues discharges a rich gas into each flue. In addition, the binder walls contain respective first and second vertical air ducts arranged in alternate binder walls between the flues with alternate ones of the air ducts having discharges at one or more levels above the others of each binder duct wall and connecting into the flues on each side of the associated binding wall. An air duct supply is connected separately to the alternate ones in each of the other air supply ducts.Type: GrantFiled: November 30, 1978Date of Patent: April 7, 1981Assignee: Firma Carl Still RecklinghausenInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
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Patent number: 4253915Abstract: The present pressure rod for a coke discharge apparatus is constructed of hollow sectional components or tubular members interconnected with one another, whereby a lightweight structure is achieved. The hollow sectional components or tubular members are interconnected in such a manner that a coolant may flow through the structure of the pressure rod. Flexible coolant supply conduits for the inflow and outflow of coolant are connected to the hollow sectional components of the pressure rod.Type: GrantFiled: June 22, 1979Date of Patent: March 3, 1981Assignee: Hartung, Kuhn & Co. Maschinenfabrik GmbHInventors: Walter Goossens, Wolfgang Schrank
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Patent number: 4251207Abstract: Coking coal is preheated and dried by passing hot carrier gas into a generally vertical flash drying pipe, then passing comminuted coal into the same pipe, the carrier gas being blown with a flow speed to move the coal upwards in the pipe and passing at about the midpoint of the pipe a mixture of hot combustion gases and additional hot recycle gas branched off from the other hot waste gas line into the pipe so as to cause further heating and moving of the coal, the further heating being carried out in a uniform and gentle manner. At the end of the pipe the coal and carrier gas are separated and the coal is recovered while the waste gas are recycled into a blower and therefrom into the vertical flash drying pipe with a branch leading part of the recycle gas into a mixing chamber with the combustion gases so as to lower the temperature of the combustion gases when the same are passed into the pipe.Type: GrantFiled: February 26, 1979Date of Patent: February 17, 1981Assignee: Bergwerksverband GmbHInventors: Kurt-Gu_nther Beck, Georg Pollert, Wolfgang Rohde
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Patent number: 4249855Abstract: A method for introducing particulate solids upwardly through a bottom solids inlet of a solids upflow vessel wherein after full extension of a piston to displace solids from a feed cylinder into the solids upflow vessel, the piston is partially retracted to "relax" the bed of solids in the solids upflow vessel. The bed relaxation step reduces the piston-to-solids pressure during the pumping stroke as well as substantially reducing the solids loading pressure on the device used to prevent backflow of solids from the upflow vessel during refilling of the feed cylinder.Type: GrantFiled: September 12, 1979Date of Patent: February 10, 1981Assignee: Union Oil Company of CaliforniaInventor: Roland O. Dhondt
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Patent number: 4249996Abstract: The coking chamber of a by-product coke oven is formed by a refractory enclosure provided in its top with a charging opening and with an outlet for volatile by-products produced in the coking operation. Forming the bottom of the chamber near the bottom wall of the enclosure, but spaced above it, is a high-temperature resistant metal sole plate, beneath which are electric resistance elements for heating the plate directly in order to coke coal supported by the plate. Opposite sides of the lower part of the chamber may also be formed by electrically heated plates.Type: GrantFiled: June 12, 1979Date of Patent: February 10, 1981Inventor: John J. Kelmar
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Patent number: 4244705Abstract: A multiple rotary gas lock apparatus using a buffer seal gas is disclosed to enable the transfer of solid materials into or out of a pressurized process containing high temperature, flammable or toxic gases. The buffer seal gas, has a pressure higher than the process pressure and is introduced between two series connected gas locks; this prevents process gas backflow to the feed system. Buffer seal leakage gas from the first pair of gas locks and air from a third gas lock are removed from an opening in a connection between the pair of gas locks and the third gas lock at subatmospheric pressure. This system enables control and usuage of toxic or flammable gases as a buffer for mixing compatibility with the process gas when a suitable inert gas is not available. It also prevents the flow of any toxic gas to the worker environment.Type: GrantFiled: May 24, 1979Date of Patent: January 13, 1981Assignee: Allis-Chalmers CorporationInventors: Robert M. Seidl, Francis J. Enright
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Patent number: 4243510Abstract: Crushed oil shale is segregated into a major portion of relatively large particles and a minor portion of "fines," such as will pass through 1/8-inch screen openings. The large particles are subjected to retorting in an upflowing bed in countercurrent contact with a downflowing hot eduction gas, while the fines are fed onto and controllably transported across the hot planar surface of a free-standing truncated cone of spent shale at the top of the retort.Type: GrantFiled: March 26, 1979Date of Patent: January 6, 1981Assignee: Union Oil Company of CaliforniaInventor: Roland O. Dhondt
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Patent number: 4242027Abstract: A coke oven charging device for supplying coal to the charging chutes on the roof of a coke oven battery of a plurality of horizontally arranged coke ovens, comprises a horizontally disposed circulator conveyor supported on the roof at a spaced location thereabove and having a plurality of longitudinal and transversely spaced closable discharge openings. The conveyor is advantageously mounted for some displaceable movement on the roof. In addition, a charging car is movable on the roof over the coke ovens and it includes a closed transfer conveyor mounted on the car which is disposed along the length of the car. The car is advantageously provided with a plurality of coal transfer connections which makes it possible to connect the car and its conveyor to a selected opening of the circulating conveyor and to a selected chute for the transfer of the coal from the circulating conveyor through the car conveyor and into the coke oven battery.Type: GrantFiled: February 1, 1979Date of Patent: December 30, 1980Assignee: Firma Carl StillInventors: Josef Stratmann, Willi Brinkmann
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Patent number: 4234390Abstract: A coking plant in which steam is injected into the ascension pipe of each coking chamber during charging of coal into the chamber and during an initial portion of the coking time, in order to maintain a slightly sub-atmospheric pressure in the chamber. Timing means which stops the injection of steam at the end of a suitable period of time after charging is actuated to start timing this period by a command signal sent from the coke pusher machine, which also levels the coal after charging, via induction coils provided for ascertaining the correct alignment of the coke pusher machine and the coke chambers.Type: GrantFiled: May 3, 1978Date of Patent: November 18, 1980Assignee: Hoogovens IJmuiden, B. V.Inventors: Jacobus H. Van Egmond, Lichtenveldt