Abstract: Internal combustion engine-electric drive unit for a motor vehicle is provided with a setting means for the travel speed and a signal transmitter for the actual r.p.m. of the output shaft and with a nominal-value integrator, where the running time of the nominal-value integrator is shortened in the case of a desired braking or the like in order to prevent undesirable travel movements due to a divergence of the output of the nominal-value integrator from the actual travel speed after a desired braking.

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 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 space between the charging bucket and the charging pit. The frame of the sluicing device advantageously includes a sealing element which engages into a recess seal combined around the charging hole.

Abstract: The invention makes possible a coking operation largely or completely eliminating waste water by converting the gas condensates obtained from the coking plant by a reverse osmosis process into a permeate which can be recycled to the coking operation, and a concentrated lye.

Abstract: A coke oven door is equipped with a metallic sealing strip extending therearound and providing a tight seal for the coke oven. The sealing strip is a compound structure of thin layers or laminations of corrosion-resistant, preferably 0.5 mm thick sheet material. The individual layers are welded to one another at their edges, and, especially if the sealing strip is designed as a sectional diaphragm, a knife-edged sealing blade is provided on the free side of the sealing strip, which blade is pressed into tight contact with the door frame by means of thrust plungers, for example. Due to its laminated structure, the sealing strip is capable of taking up hammering without becoming permanently deformed.

Abstract: A method of measuring out a furnace charge of a predried and preheated coal in a closed system in which the coal is fed from a bottom discharge of a storage bunker into a filling cart container which is disposed therebeneath comprises opening the bottom discharge of the storage bunker to permit the fall of the coal from the bunker into the container while blocking off a portion of the filling container space until the remaining space in the filling container is filled and coal no longer flows through the bottom discharge and a column of coal remains in the discharge above the filling cart. A shutoff member is then directed through the column of coal in the bunker discharge above the filling cart container, to cut the column above the upper edge of the filling cart container, and opening the blocked-off portion in the filling cart container space to absorb the coal within the filling cart container.

Abstract: A drive system for an automotive vehicle, especially an industrial floor vehicle such as a forklift truck, comprises an internal combustion engine, preferably a diesel engine, whose speed-controlling element (e.g. fuel-injection pump) in connected to a speed-setting member (e.g. a drive pedal) and propels an externally energized direct-current generator which, in turn, is connected to an externally energized direct-current motor driving the load, e.g. at least one wheel of the vehicle. According to the invention, the speed-controlling element of the internal combustion engine is provided with a speed-setting signal generator, the output shaft of the internal combustion engine with an engine shaft-speed signal generator and the output shaft of the direct current motor with a motor shaft-speed signal generator.

Abstract: A coke oven handling apparatus for use with a coke oven having a battery of horizontally arranged side by side coke ovens with a quenching car trackway for a coke quenching car disposed alongside the battery outwardly of a coke cake guide car which is also movable along the ovens of the battery on a guide car trackway comprises a stationary closed gas exhaust system which has an exhaust connection adjacent the quenching car. The support structure provides a support for a hood and a trackway for the hood adjacent the quenching car trackway and a structure is supported upon and movable along the hood support and trackway structure. The hood structure includes a first hood portion of vertically deep size which is adapted to be positioned adjacent a coke cake guide car in a position to overlie coke being pushed through the guide car into the quenching car.

Abstract: A coke oven handling apparatus, for use with a coke oven having a battery of horizontally arranged side by side coke ovens with a quenching car trackway for a coke quenching car disposed alongside the battery outwardly of a coke cake guide car which is also movable along the ovens of the battery on a guide car trackway, comprises a stationary closed gas exhaust system which has an exhaust connection adjacent the quenching car. The support structure provides a support for a hood and a trackway for the hood adjacent the quenching car trackway and a structure is supported upon and movable along the hood support and trackway structure. The hood structure includes a first hood portion of vertically deep size which is adapted to be positioned adjacent a coke cake guide car in a position to overlie coke being pushed through the guide car into the quenching car.

Abstract: A heating system for regenerative coke oven batteries having a plurality of coke oven chambers separated by heating walls and a plurality of regenerators extending the length of the coke oven for preheating air and cooling hot waste gases comprises a plurality of spaced heating ducts extending upwardly in the heating walls which are grouped into two adjacent pairs of heating ducts. The ducts in each group of four heating ducts are separated by first and second binder walls with the first binder walls carrying one binder duct for supplying air and discharging hot waste to and from adjacent heat ducts in one of the pairs in the group. The second wall is either provided with no heating ducts or a pair of heating ducts. A horizontal channel connects the tops of all four heating ducts in each group and the lower end of each heating duct is provided with a rich gas supply nozzle.

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 rotary drum and also generate steam as a byproduct.

Abstract: A method for the gasification of coke is disclosed in which coke produced in a coking chamber and having a temperature of 900.degree. C. to 1100.degree. C. is forced into a coke bucket, after coking in the coking chamber, and fed by means of hot coke conveyors without substantial temperature changes to a gasifier. The coke is gasified in the gasifier while adding at least one of oxygen and air, and steam and carbon dioxide.

Abstract: A method for the gasification of coke is disclosed in which coke produced in a coking chamber and having a temperature of 900.degree. C. to 1100.degree. C. is forced into a coke bucket, after coking in the coking chamber, and fed by means of hot coke conveyors without substantial temperature changes to a gasifier. The coke is gasified in the gasifier while adding at least one of oxygen and air, and steam and carbon dioxide.

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.

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.

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.

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.

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.

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.

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.