Abstract:
Plastic conversion vessels such as pyrolytic reactors convert plastic waste materials such as polymers, or hydrocarboneous material, or both, via in situ chemical reactions comprising cracking, recombination, reforming, recracking, and the like, to usable chemical compounds such as naphtha, diesel fuel, heavy oil, wax, and the like. Inherent within the polymers and/or carbonaceous material are generally solid, inert residues such as various fillers, pigments, flame retardants, silica, aluminum, talc, glass, clay, and so forth. Such solid inert residues (SIR) must be treated to remove residual volatile organic material therefrom in order to meet acceptable environmental standards and/or limits. A heated dryer for treating the SIR comprises heating units to remove excessive volatile organic material therefrom as when moved along a conveyor that transfers said material to a collection area. The collection area comprises one or more pistons that are capable of compacting and discharging said SIR material. Another collection area embodiment comprises a plurality of plungers that transfer the SIR material from said collection area to a plunger collection area, and subsequently to a collection container.
Abstract:
A wet quenching tower for quenching coke is disclosed. A lower housing portion defines a lower interior and a portal sized to allow ingress and egress of a coke laden receptacle. A plurality of quenching sprayers for directing water onto the lower interior of the lower housing portion are supported above the lower interior. An upper housing portion is removably secured to an upper edge of the lower housing portion and supports a plurality of baffles. The upper housing portion defines an open upper end and cooperates with the lower housing portion to allow steam to rise from the lower interior upward through the housing portions. Each baffle defines a surface for allowing condensation of the portion of the steam. A plurality of washing sprayers are supported above the baffles for washing the baffles.
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:
Enclosure and exhaust apparatus is provided to enhance control and removal of coke-side emissions during a push in the operation of a coke oven battery. The gaseous and entrained particulate emissions are initially confined to a first longitudinally extending containment zone where the emissions are directed, under the influence of its gaseous thermal drive, upwardly and laterally outwardly away from the coke-side face of the battery. The emissions are then transferred, at the peak of the first containment zone, laterally, through a gas expansion throat, into a second longitudinally extending containment zone that is adjacent and parallel to the first containment zone. Contemporaneously with entering the second containment zone, a portion of the emissions is removed therefrom through an exhaust conduit located at the upper reaches or peak portion of the second containment zone. The remainder of the gaseous emissions, not immediately removed, are permitted to expand longitudinally and transversely within the second containment zone while carrying with it entrained particulates that also have not been removed through the exhaust system. Finally, the retained remainder of the gaseous emissions in the second containment zone are removed through the exhaust conduit while permitting those particulates that are heavy enough, to fall, by gravity, to a sloped bottom of the second containment zone and, then, to be discharged to ground at a convenient collection area.
Abstract:
A coke delivery device 10 includes a swingable chute 16 for guiding coke pushed from a coke oven through a coke rack 12 into a quench car 24.The chute 16 is drivingly interconnected with a moveable fume hood 14 whereby lowering the fume hood over the quench car positions the chute 16 for coke guiding. Raising the fume hood moves the chute from the coke guiding position to a storage position concurrently spreading coke pushed into the quench car and dumping any coke remaining on the chute into the quench car.
Abstract:
An exhaust hood connectable with an unloading carriage during juxtaposition thereof with a coking chamber and designed to overlie a quenching wagon alongside that carriage has walls converging upward to a roof having two ducts rising from its front and rear ends, these ducts merging into a substantially centrally positioned vertical flue with an inserted dust filter and a downward extension forming a normally closed bunker for the reception of solids dislodged from the filter by periodic vibration thereof. A bypass is formed by a branch of the flue which can be linked during unloading with a pipe atop the juxtaposed carriage having an intake end above the region of the coking-chamber door to pick up waste gases escaping there. The hood may be supported by an ancillary guide track and an overhanging shelf on the side of the quenching wagon opposite the carriage track; alternatively, it is guided at one end on lateral rails of the quenching wagon and at its other end by an outrigger riding the track of that wagon, possibly in front of an engine towing same.
Abstract:
An improved duct system is provided for collecting gases from the coke side of a battery of coke-oven chambers with vertical flues in which a coke guide is mounted for movement along the ovens on rails, in which the coke transport car is mounted for movement on rails along the ovens adjacent the coke guide, and in which a stationary main collection duct with a belt covered slot is provided adjacent the transport car rails. An extraction hood is provided for covering the transport car and connecting the discharge end of the coke guide with the transport car. The hood has an integral connecting line adapted to be connected between a gas collection duct above the coke guide and a gas transfer device movable on the main duct under the belt for directing the gases into the main duct. Also integral with the extraction hood are two gas outlet ducts, one on each side of the connecting line, separate from the connecting line, for connecting the extraction hood to the gas transfer device.
Abstract:
In the process of transferring coke from a coke oven chamber in a battery of coke ovens to a quenching car, the coke is quenched by a water spray from above. The resulting steam is collected in a hood located above and movable with the quenching car and is either exhausted from the hood and conveyed to a condenser or is condensed in the hood with the condensate being collected, cooled and recirculated to provide the water for the quenching and condensing sprays. The apparatus and method of this invention provides for transferring and quenching the coke without emitting harmful gases and dust to the atmosphere.
Abstract:
Method and apparatus for extruding incandescent coke from a coke oven and for quenching the coke prior to transport thereof from the point where extruded. The method and apparatus include enhanced air pollutant emission control characteristics. The apparatus includes an inverted, truncated-pyramid container cradled within the frame of a vehicle similar to that used to transport molten metal. Prior to coke extrusion the vehicle permits indexing of the container under the plane through which the extruded coke falls so as to receive all of such extruded coke. While indexed and immobile, the container is adapted to mate with a correspondingly indexed hood having emission control means adapted to be operable during both the extrusion and quenching of the coke at the indexed position of the container/hood. Use of the present invention, in comparison to the prior art, further minimizes the escape of uncleaned, air pollutant-emitting fume, both by virtue of combustion suppression and exhaust gas cleaning. The method and apparatus herein are subject to retrofit application on slot-type ovens converting coal to coke for metallurgical purposes wherein such ovens are subject to damage from misdirected water and steam.
Abstract:
A system and method are provided for dry quenching coke while simultaneously eliminating pollutants emitted during coke pushing and quenching operations. The method includes pushing the hot coke from a coke oven into a hooded, mobile coke quench car, drawing the pollutants emitted during the push downwardly through the hot coke contained in the quench car to oxidize the pollutants and produce an inert combustion gas, cooling the hot inert gas and utilizing the heat recovered from the gas, cleaning the cooled inert gas, and returning the cooled cleaned inert gas to the quench car for further passage through the hot coke.