摘要:
A process for utilizing waste heat and for obtaining water gas during the cooling of incandescent coke ejected from a chamber oven is described, this process being in two stages. In the first stage, the coke is dry-cooled with a mixture of water gas and water vapor as the cooling gas. This is circulated, and from the circuit the desired waste heat and the desired water gas are extracted. In the second stage, the coke is wet-cooled with water. The water vapor formed is taken off and returned to the environment and/or to the second stage.An apparatus is described for carrying out the process, and this apparatus has, located under one another, a filling shaft (1), a pre-chamber (2), a cooling chamber (3), a quenching chamber (4) with a water-spray device (5), an extraction housing (6) and a discharge shaft (7), and is equipped with a cooling-gas discharge line (19) leading away from the cooling chamber (3) and, in succession, a coarse separator (20), a heat sink (21), a blower (23), a cooling-gas delivery line (25) to the cooling chamber (3), an extraction line (26) leading away from the cooling-gas delivery line (25) with a throttling device (27), and a take-off line (34) which leads away from the extraction housing (6) and which leads to a cyclone separator (35), a blower (36) and an exhaust steam pipe (38) with a throttling device (37) and/or to a return line (39) with a throttling device (40).
摘要:
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.
摘要:
A process for quenching hot coke in a one-spot coke quench car. The process utilizes a unique arrangement of pipes and spray nozzles to quench the hot coke in a substantially watertight coke quench car having a sloping bottom. A plurality of pipes are directed downwardly from a header mounted on the bench side of the quench car to provide solid streams of water onto the shallow coke bed portion at the top of the sloped bottom for a portion of the quench period. After an initial period a flow of water from a plurality of spray nozzles mounted on additional headers is directed onto the substantially horizontal deep coke bed portion for the remainder of the quenching period. The unvaporized quench liquid is retained in the watertight car until the completion of the quench cycle when it is rapidly drained away.
摘要:
A pyrolysis process and system produces a solid residue and a clean, enriched fuel gas. In the process, the pyrolytic oil and filter cake are recycled in such a manner as to produce products of optimal value, and to minimize the need for servicing and downtime of the system. Recycling of water recovered in the process may also be employed to achieve enrichment of the gaseous product. The process may be carried out in such a manner as to produce a non-polluting wastewater stream that can be discharged directly from the system.
摘要:
A process for quenching hot coke discharged from an oven of a battery of coke ovens into a one-spot car. The process utilizes a unique arrangement of two sets of narrow angle spray nozzles to quench the coke. In addition to quenching the coke, one set of spray nozzles initially knocks down the peak portion of the coke pile and distributes the coke so that the exposed surface of the coke is substantially level. The quench liquid discharged through the narrow angle spray nozzles contacts about 50% to about 70% of the substantially level, exposed surface of the hot coke. Sufficient openings are provided adjacent the bottom of the one-spot car to drain the quench liquid to prevent the buildup of quench liquid in the quench car.
摘要:
An extendible hopper is mounted to the undercarriage of a pusher machine and is operable to be extended to engage the face of the coke oven battery, between the buckstays and just below the door jamb, to catch hot coke that spills out of coke ovens as the door is removed and the pusher ram is retracted. A bin is also mounted to the undercarriage of the pusher machine to receive the hot coke collected by the extendible hopper. Quench sprays are mounted to the bin to quench the hot coke, and suction means are mounted to the bin to draw off pollutants that emanate from the hot coke and the quench thereof.
摘要:
A portable coke quenching apparatus for use when the regular quench tower at a coke oven battery is out of service. The apparatus includes two properly designed trailers positioned end-to-end and piping carried by the trailers to project over a quench car and spray water on coke carried by the car, and thus quench the coke in a similar manner to the regular quench tower.
摘要:
A coke-cooling apparatus comprises a drum rotatable in a bath of cooling water about a generally horizontal axis and traversed from end to end by the coke to be cooled. The wall thickness of the drum or shell increases progressively from a central region toward each end.
摘要:
1. In a coke quenching system, the combination comprising: means defining a vehicle having a coke receiving cavity, a coke admitting opening communicating with said cavity and a coke releasing exit communicating with said cavity, and adapted to ravel between a coke receiving station, a coke quenching station and a coke dumping station; a hood over said coke receiving cavity and adjacent one side of said coke receiving opening, said hood including an elongated duct having an elongated opening facing said coke receiving cavity and a plurality of individual louvers in said elongated opening, each said louver being movably mounted for movement between open and closed positions, each said louver being movable independently of the others of said louvers; exhaust means fluid communication with said hood for withdrawing gases within said coke receiving cavity; and means mounted on said hood adjacent said coke receiving opening for generating a fluid barrier across said opening whereby gases emanating from coke received in said cavity may exit the vehicle substantially only through said hood.
摘要:
1. An apparatus for transporting and quenching coke discharged from a horizontally-arranged battery of coke oven chambers, in combination with a coke guide grating movable along a charging floor in front of the oven and into an aligned relationship with each of said coke oven chambers, said apparatus comprising: a plurality of coke transfer tanks each having an opening arranged toward said coke chamber for receiving coke discharged from said coke guide grating, a first pair of rails supporting at different times each of said coke transfer tanks for displacement into a position forming a smoke-tight contact with said oven, each of said tanks having a coke discharge outlet arranged below the hearth of said oven when supported by said first pair of rails at a position in front of the oven, a car supporting said first pair of rails and one of said coke tanks, a second pair of rails supporting said car for movement along said battery of coke oven chambers, a plurality of third rail sections arranged remotely from said coke oven chamber and in a selectively alignable relation with said first pair of rails supported by said car, a quenching chamber at each of said third rail sections arranged for receiving coke discharged from one of said coke tanks while supported on one of said third rail sections, means forming a smoke-tight connection between a coke transfer tank and a quenching chamber during the discharging of coke into the quenching chamber, a coke conveying chute in each of the quenching chambers for transporting coke discharged from one of said coke transfer tanks when arranged in a smoketight relation with one of the quenching chambers, controlled water sprinklers in each of the quenching chambers for cooling coke, said controlled water sprinklers being arranged above said coke conveying chute, and a vibrating conveyor for advancing coke while it is quenched.