Abstract: A method and apparatus of cooling retort coke is disclosed which provides for cooling hot coke from a coking chamber by direct heat exchange with fine-grained material, preferably coal, and the subsequent separation of the fine-grained material from lump coal which would form the cooling step.

Abstract: A method and apparatus for removing hydrogen sulfide from crude coke oven gas comprises initially scrubbing the crude coke oven gas in a low pressure scrubber using an aqueous regeneratable liquor. The gas is subsequently scrubbed in a high pressure scrubber using the same liquor. Streams of spent washing liquor are united and supplied to a regenerating unit where the hydrogen sulfide is removed in the form of sulfur or sulfuric acid. After the regenerating unit the liquor is returned to the high and low pressure scrubbers.

Abstract: A dry coke cooling apparatus comprises an antechamber with a bottom hole for charging coke into a cooling chamber which accommodates vertical outer cooling walls and inner cooling walls which extend within the coke charge. The lower part accommodates coke discharge equipment and conduits for supplying circulated cooling gas which passes upwardly through the charge, to be exhausted at the top. The inner cooling walls are supported on hollow beams which are cooled by the circulated cooling gas directly or indirectly.

Abstract: In a method of stripping ammonia from water using steam in countercurrent flow, wherein steam is supplied over a sump of a stripper and directed along with the stripped gas component from a head of the stripper, the method comprising keeping the counterpressure constant while the temperature of supplied ammoniacal water is elected and the partial pressure of the component to be stripped is correspondingly lowered by adding compressed saturated vapors which have not been cooled and correspondingly reducing the steam volume.

Abstract: The ammonia, hydrogen cyanide, and hydrogen sulfide scrubbed out of crude coke oven gases are decomposed and combusted, and sulfur is recovered therefrom in a Claus process, while using preheated air and effecting the decomposition and oxidation at temperatures varying through 100.degree. C. at most, and keeping the temperature level of the entire process above 100.degree. C. and allowing the residual gases to cool below this temperature only after the separation of sulfur, and controlling the air supply to maintain the ratio of H.sub.2 S and SO.sub.2 in the process gases above 2.

Abstract: The invention relates to a device for tilting and turning coke-oven doors for the purpose of maintenance and repair. It comprises a door-receiving support frame with upper guide rollers, which are guided in a guide rig having parallel rail pairs. At the lower end of the support frame a firmly connected drive device engages, which is movable on a raised horizontal rail track. The drive device pulls the support frame from the vertical into the horizontal position and pushes it back into the vertical position. The guide rig includes a vertical part and an inwardly extending part contiguous thereto. The center between the guide rig on the coke side and the guide rig on the machine side is interrupted. The rail pairs end at the bottom in sturdy stops for the guide roller. The invention is thus an accident proof tilting device, with sufficient space for repair purposes being available on the working platform.

Abstract: Method and apparatus for detection and selective after-quenching of red hot pockets in previously quenched hot coke lying on a coke bench, in which the temperature of the coke is sensed and recorded over the entire surface or area of the coke bench by temperature sensors installed thereabove, and if excessively hot coke portions or local areas are found, only those excessively hot coke portions are acted upon for after-quenching automatically in controlled manner with a focused water jet or spray using only a minimum amount of water for as short a time as possible.

Abstract: The invention relates to a method of preparing material for hot briquetting by pyrolytic decomposition of bituminous coal in mixture with thermally widely stable substances at a temperature of 450.degree. to 530.degree. C., and to a suitable apparatus for carrying out this method. In a travelling bed reactor, the briquetting material is exposed to the pyrolytic decomposition of the bituminous coal component, and is held in continuous mixing and kneading motion. For this purpose, the briquetting material is moved initially in a rotational mixing and kneading motion predominantly at levels parallel to the plane of the axes of rollers of the briquetting press, during which motion it migrates downwardly by gravity at an average speed of less than 3 centimeters per second, whereupon, at the end of this motion, it is uniformly distributed by a rotational motion over the entire width of the rollers.

Abstract: A combination internal combustion and electric drive vehicle is provided having a frame, a battery suspended from the frame between two parallel spaced axles carrying supporting wheels, at least one elective drive motor driving at least one wheel, an internal combustion engine on the frame drivingly connected to a generator and connections between the generator and each of the electric motors and the battery whereby the battery may be recharged and electric motor may be driven by the generator and the electric motor may be driven by the battery independently of the generator.

Abstract: A device and method for dry cooling incandescent coke comprises a closed cooling chamber having a coke inlet, for example, at its top end and a coke delivery or discharge at its bottom end which is subdivided by a plurality of vertical walls so as to leave coke flow spaces between the walls. The walls are constructed to define a continuous meandering path for coolant which is circulated through the walls during the flow of coke therethrough. The walls comprise superposed ducts arranged vertically one over the other and which for example are welded together and which have respective ends connected to a superjacent or subjacent duct so as to form a continuous meandering coolant flow passage. The coolant is circulated through inlet and outlet connections arranged exteriorly of the chamber and the coke flow and coolant flow are controlled through the chamber as desired to affect the cooling rate selected.

Abstract: A waste heat removal system for a regenerative coke oven battery which has side burners and a regenerator portion comprises a plurality of substantially parallel longitudinally extending channels of substantially equal cross section which are defined in the battery at spaced lateral locations and extend over substantially the entire length of the battery below the regenerator portion. A common transversely extending collecting duct adjacent one end of the battery is connected to each of the channels. A waste heat collection duct is disposed along at least one side of the channels and it is associated with a selective portion of the regenerator and a long cross channel is connected to the waste heat connection duct and to selected ones of the channels. The cross channels extend from the pusher side to the coke side or vice versa and form alternately short and long connections to corresponding longitudinal channels.

Abstract: A waste heat boiler system includes a vertically elongated waste heat boiler having an upper portion with a waste gas inlet and a lower portion with an exhaust line connection which in addition to its vapor generating tubes includes evaporator tube nests and a water preheater. The waste gases are received from a dry coke cooling vessel and they are delivered through a separator by a blower to the lower end of the coke cooling vessel for flow upwardly through the hot coke. The superheater is mounted over the waste heat boiler and has a connection through a controllable valve to the top of the waste heat boiler. The superheater includes its own burner and air and external gas supply are supplied to the combustion chamber for the superheater along with bypass portion of the circulated waste gases. The steam generated by the boiler is delivered from a steam cylinder or drum in the superheated tubes of the superheater.

Abstract: A method of monitoring the reversal system of coke oven batteries comprises monitoring the position of the air valves, waste heat discs, and gas cocks in each of the coke ovens of a battery, measuring and centrally registering the temperatures and/or flow rates of the fluids supplied into and discharged from the oven, namely of combustion air, gases and waste gases, comparing the measured values with the desired values corresponding to the position of the system elements, and upon an undue deviation, signals for carrying out safety measures, such as actuating a gas deficiency safety, are automatically delivered. Also measured may be the oil pressure in the lines for supplying the hydraulic signals actuating the reversal mechanism, with again a release of alarm signals. A device for monitoring the reversal system includes an apparatus connected to the valves for shifting all of the valves between an operating position in one characteristic way to an operating condition in another characteristic way.

Abstract: A method of desulfurizing coke oven gas comprises directing the coke oven gases upwardly and in a hydrogen sulfide scrubber tower, washing the coke oven gases in a cyclic ammonia washing including admixing sulfur compounds containing waste gases and without cooling with ammonia in a degasifying unit which is supplied with ammonia containing water which is advantageously obtained from a tar separator and using the heat content of the waste gases to expel the ammonia from the water, and directing the waste gases laden with the expelled ammonia into the tower. The waste gases advantageously come from a Claus plant process and they are laden with ammonia and they are advantageously directed into the upper portion of the scrubber tower. Ammonia water is circulated in an ammonia circuit from an outlet which is advantageously located in the upper portion of the tower to an inlet which connects to the tower above the outlet.

Abstract: A method of dry cooling coke using a coke transporting bucket which has a removable cover with an exhaust pipe extending from the interior of the bucket to an exterior exhaust connection and a cooling shaft for the coke comprises directing red hot coke into the bucket, covering the bucket with the cover and transporting the coke to the cooling shaft and connecting the exhaust pipe to the exhaust system while the bucket is in the shaft and emptying the bucket into the cooling shaft. The coke transporting bucket comprises a container having a bottom discharge which is closable by a flap and a removable cover which seats around the rim of the container to seal it. An exhaust pipe is carried by the cover and it extends into the interior thereof for removing gases from within the bucket and delivering them to an exterior connection which is connectable to an exhaust line.

Abstract: A sealing arrangement at coke oven chambers, for gastightly sealing the junction gaps between a transfer means, such as provided on coke guide cars or at the pushing machine and the coke oven, comprises sealing sheets at the oven side, which in operating position, apply against the outside of the chamber opening. The inner space of this transfer means is connected to stationary exhausters, for example. The sealing sheets comprise a plurality of individual segments which, as the transfer means is put in place, are pressed by adjustable springs acting through sliding rods against anchor posts and, at the top of the chamber opening against plates connected between the anchor posts at the top of the chamber.

Abstract: A method for the dry cooling of coke comprises transferring the coke from the coke oven to a special bucket which is moved over a charging hole of a cooling pit. The space between the bucket and the charging hole is closed off and sealed against the atmosphere and a shutter which closes the top of the charging hole is moved upwardly and then transversely off the charging hole to open it as an intermediate charging guide piece is moved in position between the hole and the bucket for the transfer of the coke therebetween. The space between the bucket and the charging hole is sealed by a frame of a sluicing device in which the shutter and the intermediate charging hole guidepiece is movable. The device advantageously runs on wheels which are located outside the frame which seals the sapce between the charging bucket and the charging pit. The frame of the sluicing device advantageously includes a sealing element which engage into a recess seal combined around the charging hole.

Abstract: A gas collecting hood for taking off emissions from coke being pushed out of coke oven chambers, travels along with a coke guide alongside the battery. The hood is connected through a gas collecting duct to a stationary exhausting system. The hood is supported at three points, through roller (15,16) at two points (A,B) on a rail (11) which is provided at the hood side remote from the coke guide (3), and pivotally at a point (C) on the coke guide (3).

Abstract: A coke oven door comprises a flat sealing diaphragm which is secured between and spaced apart from the door body and the door plug and is provided on its periphery with sealing knife edges which project against the door frame. The sealing edges are pressed against the door frame by bias adjustable springs, through spring loaded plungers. The door plug is formed by a plurality of individual plug elements closely adjacent to each other and supported by associated plug holders, and the sealing diaphragm is firmly screwed in place between the door body and the plug holders only in the upper and lower zones or areas of the door. In the intermediate zone, the diaphragm is connected to a back-up plate and to the plug holders and held adjustably spaced apart from the door body.

Abstract: Briquettes made from bituminous or sub-bituminous coal or peat are produced by grinding the coal, mixing it with a binder and compacting the mixture. They are then carbonized in a continuous process in a shaft oven. The coal may be predried and the finished briquettes may be preheated, with a subsequent drying and hardening. The carbonization is effected in two stages in an indirectly heated shaft oven, with the evolved gas being taken off about at the mid-height of the oven shaft, processed, and used for heating in the second, high-temperature stage. The flue gases from this high-temperature stage are used for heating in the first stage and for preheating. The second or high-temperature stage is followed by a cooling stage where the gases evolved in the second stage, and mainly comprising hydrogen are used and circulated. The evolved gas in excess is continuously removed from the cooling circuit.