Patents Assigned to Still GmbH
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Patent number: 4368103Abstract: 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: GrantFiled: April 28, 1980Date of Patent: January 11, 1983Assignees: Vereinigte Elektrizitats-Werke Westfalen AG, Firma Carl Still GmbH & Co. KGInventors: Klaus Weinzierl, Kurt Tippmer
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Patent number: 4366028Abstract: 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: GrantFiled: November 6, 1981Date of Patent: December 28, 1982Assignee: Firma Carl Still GmbH & Co. K.G.Inventor: Werner Abendroth
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Patent number: 4354903Abstract: 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: GrantFiled: March 30, 1981Date of Patent: October 19, 1982Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
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Patent number: 4353189Abstract: 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: GrantFiled: May 23, 1980Date of Patent: October 12, 1982Assignee: Firma Carl Still GmbH & Co. KGInventors: Friedrich Thiersch, Manfred Strobel
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Patent number: 4352720Abstract: 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: GrantFiled: October 27, 1980Date of Patent: October 5, 1982Assignee: Firma Carl Still GmbH & Co., KGInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs, Klaus Urbye
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Patent number: 4344823Abstract: 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: GrantFiled: April 9, 1981Date of Patent: August 17, 1982Assignee: Firma Carl Still GmbH & Co. KG.Inventors: Josef Stratmann, Klaus Mrongowius
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Patent number: 4338161Abstract: 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: GrantFiled: March 30, 1981Date of Patent: July 6, 1982Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs
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Patent number: 4305788Abstract: 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: GrantFiled: March 28, 1980Date of Patent: December 15, 1981Assignee: Firma Carl Still GmbH & Co KGInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs, Klaus Urbye
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Patent number: 4302430Abstract: 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: GrantFiled: April 28, 1980Date of Patent: November 24, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Dieter Laufhutte
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Patent number: 4299666Abstract: 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: GrantFiled: March 28, 1980Date of Patent: November 10, 1981Assignee: Firma Carl Still GmbH & Co. KGInventor: August Ostmann
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Patent number: 4296938Abstract: 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: GrantFiled: May 2, 1980Date of Patent: October 27, 1981Assignee: Firma Carl Still GmbH & KGInventors: Ludwig Offermann, Rheinhold Wippich
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Patent number: 4293389Abstract: 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: GrantFiled: May 16, 1980Date of Patent: October 6, 1981Assignee: Firma Carl Still GmbH & Co. KGInventor: Heinrich-Josef Clement
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Patent number: 4293388Abstract: 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: GrantFiled: December 13, 1979Date of Patent: October 6, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Kurt Lorenz, Horst Dungs, Hans B. Koenigs, Roman Kurtz
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Patent number: 4289500Abstract: A method of producing hot briquettes in a plurality of stages comprises heating inert components which do not soften by direct heat exchange with hot carrier gases which are generated in a combustor to a temperature of about from 550.degree. to 700.degree. C. Thereafter the heated inert components and the gases are directed to a first separator to separate the carrier gases from the heated inert components. A caking bituminous binder coal component is then preheated and dried to temperatures of either 60.degree. over or under 300.degree. C. with the separated carrier gas. The binder coal and the separated carrier gas is then directed to a second separator to provide a second separated carrier gas and the heated binder coal. The second heated carrier gas is directed into a third separator in direct heat exchange with a second inert component which is then heated by this to a temperature of from 350.degree. to 600.degree. C.Type: GrantFiled: April 21, 1980Date of Patent: September 15, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Horst Dungs, Karl-Heinz Wollenhaupt, Yves Brasseur, Henri Birscheidt, Franz Beckmann
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Patent number: 4289647Abstract: A method of producing process gases containing hydrogen and carbon monoxide from ash oil comprises directing oil rich in ash and oxygen enriched gas into a burner which is fired downwardly into a pressure reactor so as to gasify the oil under pressure and under pressure of steam into gases which are partly burned and a remainder of gases. The remaining gases are separated from unburned carbon and ash and are quenched to convert them into steam by a wash water which entrains fine particles of carbon. The remaining heat content of the quench gases are used in another process. Wash water is directed into a decanter thickener in order to separate the wash water and entrain particles into clear water, carbon containing water and ash mud. The carbon containing water is used to produce steam for controlling the conversion of ash oil.Type: GrantFiled: June 20, 1980Date of Patent: September 15, 1981Assignee: Firma Carl Still GmbH & Co. KGInventor: Kurt Tippmer
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Patent number: 4274924Abstract: A method of cooling and dedusting degasification gases which escape from coal degasification chambers particularly gases which are obtained in high temperature or low temperature carbonization of bituminous and subbituminous coals and which pass from degasification chambers through risers and bends into collection mains and in the bends or in the collecting mains themselves which comprises directing crude tar having a temperature in excess of 50.degree. C. and lower than 170.degree. C. into the bends and collecting mains either alone or with water added which has a temperature and is of a quantity such that it completely evaporates in the collecting main.Type: GrantFiled: June 8, 1979Date of Patent: June 23, 1981Assignee: Firma Carl Still GmbH & Co. KGInventors: Heinrich Weber, Horst Dungs, Franz Beckmann, Hugo Schmauch, Karl-Heinz Flasch
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Patent number: 4263101Abstract: A coke oven door assembly includes a door body having a plurality of plates vertically disposed in series. Refractory blocks attached to the plates include overlapping side portions in spaced relationship with their adjacent ends. The plates are tiltingly interconnected with each other.Type: GrantFiled: April 29, 1980Date of Patent: April 21, 1981Assignee: Carl Still GmbH & Co. KG., FirmaInventors: Friedrich Thiersch, August Lucas
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Patent number: 4263100Abstract: A method reducing fine dust emission during the time that predried and preheated coal is charged into coke ovens comprises directing wet coal to be carbonized into direct contact with a hot process gas so that the coal is transported dry and heated, directing the hot process gas with the heated coal to a plurality of different separators in succession with the first separator being set to separate only around from 80 to 90% of the total amount of the coal and without separating the fine dust, and a subsequent separator separate the remaining amount of the solid matter including the fine dust, compacting the dust removed from all of the separators and mixing them together, and charging the compacted mixed dust into the coke oven. The apparatus for effecting the invention includes a material separator which is designed as a gravity separator or gravity sifter which is arranged to discharge into a connection between the mixed and compacted dust separator in separate additional separators.Type: GrantFiled: September 20, 1979Date of Patent: April 21, 1981Assignee: Firma Carl Still GmbH & Co. KG.Inventors: Dieter Stalherm, Janos Bocsanczy
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Patent number: 4259157Abstract: 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: GrantFiled: April 17, 1979Date of Patent: March 31, 1981Assignees: Firma Carl Still GmbH & Co. KG, Rheinische Braunkohlenwerke AktiengesellschaftInventors: Kurt Lorenz, Horst Dungs, Hans B. Koenigs, Roman Kurtz
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Patent number: 4259158Abstract: A method of producing abrasion resistant coke from brown coal briquets in a shaft furnace comprises charging the coke briquets into the top of the furnace and removing coke from the bottom of the furnace while directing inert hot combustion gases into the furnace and through the briquets at a plurality of vertically spaced levels throughout the height of the shaft furnace. Gases are directed at temperatures to effect and successively lower stages of the furnace the preheating, predrying, carbonization, and cooling of the charge.Type: GrantFiled: July 30, 1979Date of Patent: March 31, 1981Assignees: Firma Carl Still GmbH & Co. KG, Rheinische Braunkohlenwerke AGInventors: Heinrich Weber, Kurt Lorenz, Horst Dungs, Roman Kurtz, Hans-Joachim Kersting