Firma Carl Still Gmbh & Co Kg

Firma Carl Still

Rheinische Braunkohlenwerke Ag

Firma Carl Still Recklinghausen

Rheinische Braunkohlwerke Ag

Firma Carl Still Gmbh & Ko. Kg

Kurt Lorenz

Horst Dungs

Heinrich Weber

Gerd Nashan

Dieter Breidenbach

Engelbert Bruns

Roman Kurtz

Gerd Osterholt

Josef Volmari

Klaus Urbye

Hans-Joachim Kersting

Peter Speich

Gustav Choulat

Josef Volmark

Egon Petsch

Hans B Koenigs

August Lucas

Klaus Mrongowius

Karl-Heinz Wollenhaupt

Karl-Hans Auge

Norbert Walther

Jost-Wilfried Gehrhardt

Manfred Rudel

Klaus-Dieter Kemper

The invention relates to a coke dry cooling chamber with vertical outer walls constructed as cooling walls and parallel vertical cooling walls positioned in the cooling chamber, with supporting walls running crosswise to them. Pursuant to the invention, the cooling walls and supporting walls taper as they descend and the different coke cooling shafts created by them correspondingly broaden as they descend. A particular embodiment of the invention provides that diaphragm pipe walls constructed as cooling walls are equipped with flat outer abrasion plates. The space between the diaphragm walls, embodied in a pipe-stay-pipe construction, and the abrasion plates is filled with a highly heat-conductive material, graphite, for example.

Coke dry cooling chamber

The invention concerns a process for removing dust from coke cooled by a dry method after the coke has left the cooling zone of a cooling chamber, and a device for carrying out the process. A dust-free flushing gas is injected below the cooling zone, preferably parallel to the direction in which the coke moves when it has been cooled to below 200.degree. C., to draw the gas off above the discharge lock together with the stirred-up coke dust, and to recirculate the gas after the dust is removed from it. As an alternative, compressed air is blown through the coke after it has left the lock and while it is being transported through a vibrating machine. The coke is cooled in a dry cooling unit to below 200.degree. C. and preferably 130.degree. to 180.degree. C. The coke is then cooled outside the dry cooling unit by means of air at about 50.degree. to 90.degree. C. and preferably 70.degree. to 80.degree. C. Either simultaneously with or immediately after the cooling step with air, the coke is moistened, for example by sprinkling or spraying, to a residual moisture of 2% to 4% by weight and preferably 2% to 3% by weight.

Process for removing dust from dry cooled coke

A method of cooling and dedusting coke after leaving the coke dry cooling system comprises directing the coke at a temperature of approximately 150.degree. to 200.degree. C. into an immersion tank which has a liquid temperature of approximately 100.degree. C., thereafter conveying the coke out of the immersion tank at a selected variable speed so as to free it of fine dust. The water content of the coke after leaving the immersion tank and after an adequate evaporation time is controlled by the speed of the conveyor which is located in the immersion tank and the water content is advantageously kept below 5%, preferably from 0 to 3%. The immersion tank comprises a closed housing overlying a box-shaped tank with a continuously revolving chain conveyor located so as to extend through the tank at its upper reach for conveying the coke into the tank and which has a lower return reach which is directed outside of the tank below the tank itself.

Method for cooling and dedusting dry cooled coke

An apparatus for dry cooling red-hot coke having an antechamber with a small discharge leading to a vertically elongated cooling chamber which is of larger dimension than the discharge and with both the cooling chamber and the antechamber having fluid cooling tubes in one or more walls and the ceiling thereof and also having a cooling tube bank in the shape of truncated pyramid comprising trapezoidal walls diverging downwardly from the discharge of the antechamber into the cooling chamber.

Apparatus for dry cooling red-hot coke

The sealing surfaces of a coke oven door are cleaned with high-pressure fluid by a hydraulically operated high-pressure piston pump which displaces either a hot or a cool conveyed media ladened with solid particles such as a coal mass and a fluid for cleansing the sealing surfaces of the coke oven doors and door frames. The pump includes a closed pump cylinder having an inlet and outlet valve for a conveyed medium at both ends of the cylinder and a partition dividing the cylinder. Inlet and outlet valves for hydraulic fluid are located in the cylinder on each side of the partition. An inner double piston is axially movable to and fro with the cylinder and comprises two output piston portions with a piston rod connected to each portion and located between them guided on bearings in the cylinder. A delivery space is formed between the piston portions and each end of the pump cylinder and the respective delivery spaces at each end simultaneously and oppositely decrease and increase during an operation. The hydraulic space is formed between the piston portions at each side of the partition and the hydraulic space also simultaneously and oppositely increase and decrease during operation. The pump is connected to a coke door cleaning apparatus for the purpose of cleaning an annular sealing surface. The apparatus includes a generally rectangular annular sealing surface trackway around the sealing surfaces of the door and a support structure adjacent the sealing surface having a sliding support surface trackway adjacent the door. A sliding support moves over the support surface. A nozzle lance is carried on the support and has an end with a nozzle directed at the sealing surface and an opposite end with a cleaning liquid connection through a hose to the high-pressure piston pump.

Hydraulically operated high-pressure piston pump

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. Some of the gases from the superheater are selectively delivered to the waste heat boiler and some are discharged through atmosphere.

Method for cooling coke and generating superheated high pressure steam

A method of dry cooling red-hot coke in a vessel having an antechamber with a small discharge leading to a vertically elongated cooling chamber which is of larger dimension than the discharge and with both the cooling chamber and the antechamber having fluid cooling tubes in one or more walls and the ceiling thereof and also having cooling tube bank diverging downwardly from the discharge of the antechamber into the cooling chamber, comprises directing the red-hot coke to be cooled downwardly through the antechamber and into the cooling chamber so as to maintain a charge of coke in the cooling chamber to the conical charge cone of the cooling tubes adjacent the top of the cooling chamber which extends downwardly below the discharge, thereafter circulating a coolant through the cooling tubes to effect transfer of sensible heat from the coke to the fluid and directing a cooling gas from the bottom of the cooling upwardly through the coke and above the entire area of the coke charging cone and then into an exhaust duct to one or more waste heat boilers.

Method for dry cooling red-hot coke

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.

Method of cooling and gasifying retort coal

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.

Dry coke cooling plant

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.

Device for cooling incandescent coke

Waste heat boiler system, and method of generating superheated high

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. One or two exhaust pipes may be provided on the cover and each includes cover flaps which are biased into a closed position but which open to connect to the exhaust system when the cover is positioned to engage the exhaust line. The cover advantageously includes longitudinal girders which extend outwardly from each side or end of the cover and provide a means for supporting the cover when the bucket is lowered beneath a support structure to free the cover from the bucket.

Method for dry cooling coke

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.

Method of charging dry coke cooling pit using sluice

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.

Growing community of inventors

Hattingen, Germany

Kurt Lorenz