Patents Assigned to Firma Carl Still
  • Patent number: 4412891
    Abstract: A coke oven door assembly which is engageable in coke oven frame comprises a door body with a sealing diaphragm which has a clamp leg portion which extends substantially parallel to a surface of the door and a free leg portion which extends substantially at right angles to the clamped leg portion. An adjusting element overlies the clamped leg portion and is clamped in position by a clamp assembly which carries a fixed bar in a movable part which bears against the free leg portion and is biased by a spring into engagement with the free leg portion. The free leg portion is adapted to have a knife edge portion at the end thereof engaged against the door frame and any displacement of the door relative to the door frame will be indicated by a change in position of the movable part carried by the clamp.
    Type: Grant
    Filed: August 5, 1982
    Date of Patent: November 1, 1983
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Werner Abendroth
  • Patent number: 4400240
    Abstract: A coke oven door is disclosed which includes a sealing diaphragm mounted between the door body and the door stopper having integral means formed therein to cause resilience adjacent the periphery so that sealing blades mounted along the periphery can be pressed into contact with the door frame under unequal forces.
    Type: Grant
    Filed: November 23, 1981
    Date of Patent: August 23, 1983
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Werner Abendroth
  • Patent number: 4392823
    Abstract: A method and apparatus is disclosed for indirectly drying and preheating fine material, in particular, moisture containing coal or the like, comprises, providing a rotary drum which is mounted for rotation and has a plurality of heating tubes extending therethrough, supplying heated cooling gas from a dry coke cooling system to the heating tubes, supplying the moist material to the drum, adjacent the bottom thereof, removing the material from the drum after it has been predried and preheated, and returning or recycling a portion of the predried and preheated material to the rotary drum. The method and apparatus utilizes the heated cooling gas used to cool dry coke in a dry coke cooling plant from high temperatures to below 200.degree. C. It has been found that such heated cooling gas for a selected amount of dry coke is useful either in a series of more than one rotary drum or, to process moist material in a single drum and also generate steam as a byproduct.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: July 12, 1983
    Assignee: Firma Carl Still Gmbh & Co. KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
  • Patent number: 4379692
    Abstract: A preheating moist fine material, such as pit coal and lignate, peat, wood, oil shale, or even ores or limestone for cement production, and an apparatus for carrying out the method are disclosed. Moist fine material is mixed above a heater with predried and preheated material until the mixture is made fluid. The fluid mixture slides down between and piles up to a level above the heater. A part of the predried and preheated fine material is removed from below the heater in an amount corresponding to another part thereof and is conveyed to above the heater with the moist fine material.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: April 12, 1983
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
  • 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: 4374811
    Abstract: A method and device of cooling and separating chlorides and fluorides from ammoniacal gas produced in the carbonization gasification of coal includes the addition of an aqueous salt solution having a concentration of at least one of chlorine and fluorine ions up to saturation to the ammoniacal gas in a color to form a salt solution enriched with chlorides, fluorides and ammonia compounds and a treated gas, and removing at least part of the enriched solution from the cooler.
    Type: Grant
    Filed: September 26, 1980
    Date of Patent: February 22, 1983
    Assignee: Firma Carl Still GmbH and Co. KG
    Inventors: Robert Karger, Horst Dungs
  • Patent number: 4368103
    Abstract: An improved plant for coal carbonization or gasification of the type having a vessel with reaction compartment, at least one burner at the top of the reaction compartment for the partial combustion of finely-ground coal at a temperature above the ash-melting temperature to produce a product of gas, coke dust and slag or ashes, the compartment having a bottom opening for the discharge of gas-coke dust current from the compartment, and means for separating the product gas is disclosed. A lower chamber is in the vessel underneath the compartment adjacent to the opening. A heating surface in a vertical wall portion of the vessel surrounding the lower chamber, and a slag trap adapted to trap slag arranged in the bottom of the chamber is provided.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: January 11, 1983
    Assignees: Vereinigte Elektrizitats-Werke Westfalen AG, Firma Carl Still GmbH & Co. KG
    Inventors: Klaus Weinzierl, Kurt Tippmer
  • 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: 4354903
    Abstract: A three-cycle process as disclosed for drying and preheating coking coal using the heat from cooled coke. Cooling gas is passed over hot coke to heat the cooling gas and cool the coke. The heated cooling gas is then passed through a waste heat boiler and then back to the hot coke in a coke cooling chamber. This completes the first closed cycle. Water is supplied to the waste heat boiler to form steam. The steam is supplied to a fluidized bed of wet coal to indirectly preheat and dry the wet coal in a second cycle. The wet coal is fluidized using fluidizing gas which converts water in the wet coal into steam. Some of the steam is condensed from the combination of fluidizing gas plus steam and then the fluidizing gas is returned to the bed. Steam from the waste heat boiler is also supplied to the fluidizing gas before it re-enters the bed to heat the fluidizing gas.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: October 19, 1982
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
  • Patent number: 4353189
    Abstract: An earthquake-proof foundation for a lateral burner-type coke oven battery, comprising, a foundation baseplate connected to the ground, a mounting plate positioned above the baseplate for supporting the coke oven battery and a plurality of sliding devices interposed and connected between the mounting plate and the foundation baseplate to permit lateral and transverse displacement of the mounting plate with respect to the baseplate. The mounting plate includes a plurality of openings and ferroconcrete pegs are bonded to the foundation baseplate and extend upwardly into the mounting plate opening. Elastic elements are connected between the ferroconcrete pegs and the edges of their associated openings to resist transverse and lateral displacement of the mounting plate with respect to the foundation baseplate.
    Type: Grant
    Filed: May 23, 1980
    Date of Patent: October 12, 1982
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Friedrich Thiersch, Manfred Strobel
  • Patent number: 4352720
    Abstract: The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to 10 mm and a swelling index of not more than 5 with a binder, pressing the mixture into briquettes, oxidizing the briquettes in a continuous material flow stream, and coking the oxidized briquettes continuously in an oven chamber by supplying indirectly and exhausting the coke oven gases with a temperature of 300.degree. to 1200.degree. C.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: October 5, 1982
    Assignee: Firma Carl Still GmbH & Co., KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs, Klaus Urbye
  • 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: 4338161
    Abstract: An apparatus and arrangement is disclosed for cooling glowing coke in a dry circuit which utilizes a cooling chamber divided by cooling walls into a plurality of parallel vertically extending cooling channels. The cooling walls are supplied with a cooling medium for indirectly cooling the glowing coke. A coke discharge mechanism in the form of a chute having a comb-like end and paddle wheels between the teeth of the comb is provided at the bottom of each cooling channel to discharge coke from the cooling chamber in a controlled fashion to an underlying after-chamber. Each cooling channel is provided with cooling gas for directly cooling the glowing coke. An arrangement utilizing the apparatus supplies cooling gas directly to the cooling channels which, after passing out of the cooling chamber, passes into a waste heat boiler which is supplied with water so that it is heated by the now hot cooling gas to produce steam.
    Type: Grant
    Filed: March 30, 1981
    Date of Patent: July 6, 1982
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
  • Patent number: 4305788
    Abstract: The process for the production of molded metallurgical coke from dried coal or fine coal mixtures with a low swelling index particularly highly volatile fine coal comprises mixing normal washed fine coal or fine coal mixtures of a grain size of from 0 to 10 mm and a swelling index of not more than 5 with a binder, pressing the mixture into briquettes, oxidizing the briquettes in a continuous material flow stream, and coking the oxidized briquettes continuously in an oven chamber by supplying indirectly and exhausting the coke oven gases with a temperature of 300.degree. to 1200.degree. C.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: December 15, 1981
    Assignee: Firma Carl Still GmbH & Co KG
    Inventors: Heinrich Weber, Kurt Lorenz, Horst Dungs, Klaus Urbye
  • Patent number: 4302430
    Abstract: A process for releasing ammonia which is bound in coal water using a pre-desulfurization plant having ammonia and hydrogen sulfide scrubbers through which crude coking plant gas is passed comprises circulating the crude coke oven gases through the hydrogen sulfide scrubber and the ammonia scrubber in succession, directing the coal water first through the ammonia scrubber while the crude coking plant gases are being also circulated therethrough after passing it first through the hydrogen sulfide scrubber. An alkali solution is also circulated through the ammonia scrubber to enrich the solution with acid components and to liberate ammonia bound in the coal water directing the coal water which has been enriched from the ammonia scrubber into the hydrogen sulfide scrubber. The process is characterized by the fact that the alkali solution which has first served for the hydrogen sulfide scrubber is added to the ammonia hydrogen sulfide scrubber.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: November 24, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Heinrich Weber, Dieter Laufhutte
  • Patent number: 4299666
    Abstract: A heating wall construction for horizontal chamber coke ovens comprises spaced apart stretcher stone walls with header walls extending therebetween and being spaced from each other to define vertical heating flues therebetween. The header walls are hollow or have a hollow portion which defines a vertical heating flue for their fuel supply and they have transfer slots in the walls which connect at various levels for transferring the heating gases from the hollow central portion to the flues. The runner stones of the heating walls have a thickness of less than 110 mm and the hollow headers are over 200 mm wide at their widest point in the central region of the heating flue and they are much wider than 100 mm at their abutting or tie in point in the stretcher stone walls.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: November 10, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: August Ostmann
  • 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: 4293388
    Abstract: Abrasion-proof coke forms are produced from bituminous coal, brown coal, or peat in the form of briquets, by preheating the briquets, dehydrating or predrying them, carbonizing them and then cooling them in at least three separate stages in which the briquets are dehydrated indirectly by subjecting them to indirect temperature conditions, producing a temperature gradient in the briquets. The briquets are automatically fed into a shaft tower which includes an upper drying shaft portion made up of a plurality of stacked radiators which include tube elements for the passing of a heating fluid, such as steam, therethrough and which define vertical shaft passages through which the briquet forms are passed downwardly and into a carbonizing shaft which has separate gas channels for directing heating gases therethrough and to a heating flue and which subsequently includes a lower cooling zone through which the briquets pass and then into a discharge channel where they are delivered for classification.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: October 6, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventors: Kurt Lorenz, Horst Dungs, Hans B. Koenigs, Roman Kurtz
  • Patent number: 4293389
    Abstract: A door closure construction for sealing the sealing edge of a coke oven door in a coke oven having an opening with an outer rigid frame bounding the opening, comprises an adjustable inner frame which fits into a recess of the outer frame and may be adjustably positioned in respect thereto and in respect to the sealing edge of the coke oven door.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: October 6, 1981
    Assignee: Firma Carl Still GmbH & Co. KG
    Inventor: Heinrich-Josef Clement
  • Patent number: 4290854
    Abstract: A horizontal coke oven battery construction in which a pusher is mounted to extend into the batteries from one side and push coke out of the batteries on the opposite side, comprises a plurality of coke oven batteries disposed in a row. A first waste gas flue extends along the pusher side of the batteries and a second waste gas flue extends along the coke side. A stack flue at one end of the batteries is connected to the first and second waste gas flues. The construction includes means for directing the heating gases into each oven battery during operation so that, in respect to the pusher and coke size, approximately one-half of the batteries is heated by upward burning and the other half is heated by downward burning. For example, all odd numbered batteries may be heated in the same direction and all even numbered batteries heated in the same direction.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: September 22, 1981
    Assignee: Firma Carl Still
    Inventors: Manfred Strobel, Friedrich, both of Thiersch