EP2938704B1 - Quench car system for improving quenched coke recovery - Google Patents
Quench car system for improving quenched coke recovery Download PDFInfo
- Publication number
- EP2938704B1 EP2938704B1 EP12890832.4A EP12890832A EP2938704B1 EP 2938704 B1 EP2938704 B1 EP 2938704B1 EP 12890832 A EP12890832 A EP 12890832A EP 2938704 B1 EP2938704 B1 EP 2938704B1
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- EP
- European Patent Office
- Prior art keywords
- quench
- quench car
- coke
- car
- sidewalls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000010791 quenching Methods 0.000 title claims description 129
- 239000000571 coke Substances 0.000 title claims description 63
- 238000011084 recovery Methods 0.000 title description 6
- 230000004888 barrier function Effects 0.000 claims description 51
- 230000000171 quenching effect Effects 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/14—Cars
Definitions
- the present technology is generally directed to systems for improving quenched coke recovery. More specifically, some embodiments are directed to systems utilizing one or more of a screen, barrier, or reflector panel to contain coke during or after quenching.
- Quenching is an important step in many types of mineral processing, including coke processing.
- a quench tower releases a large amount of water onto heated coke in a quench car in order to quickly cool the coke.
- the pre-quench coke is extremely hot, sometimes having a temperature greater than 2,000 degrees Fahrenheit (1093 degrees Celsius). Once the coke is cooled, it can be handled on transfer belts and be screened and sent to the customer.
- EP 0 319 708 A2 discloses a coke quenching vessel with a double-walled bottom and side design.
- CN 202 415 446 U discloses a coke shielding cover of a quenching tower.
- the present technology is generally directed to systems for improving quenched coke recovery. More specifically, some embodiments are directed to systems utilizing one or more of a screen, barrier, or reflector panel to contain coke during or after quenching.
- the invention relates to a quench car system for containing coke prepared for quenching at a quenching site as defined in claims 1-12.
- Figure 1 is an isometric, partial cut-away view of a quench car 100 that is entering a quench tower 104.
- the quench car 100 includes a plurality of sidewalls 102 arranged to enclose or at least partially surround a space configured to contain coke in a coke processing system.
- the quench car 100 can be used in other mineral processing systems. While the car 100 is described herein as a "quench" car, not according to the present invention, it can comprise a "hot" car configured to receive coke from a coke oven, a quench train, a coke-moving car, a combined hot/quench car, or other container.
- the quench car 100 includes a permeable deflection barrier 106 having a top portion 108 and one or more sidewall portions 110.
- the barrier 106 comprises only one of a top portion 108 or sidewall portion 110 (not according to the invention), or extends across only a portion of the top of the quench car 100.
- the top portion 108 is integral with the sidewall portions 110 or can be detachably coupled to the sidewall portions 110 or to the sidewalls 102.
- the barrier sidewall portion 110 is illustrated as occupying only an upper portion of the sidewalls 102, in further embodiments more or less of the sidewalls 102 can comprise the permeable barrier.
- including apertures or a permeable barrier on a lower portion of the sidewalls 102 can allow quench water to exit the car 100 after the quench and prevent the coke from sitting in quench fluid.
- the permeable barrier 106 is removably coupled to the quench car 100.
- the barrier 106 can be held above the car 100 by the quench tower 104 or other structure.
- the permeable barrier can be latched, friction fit, draped over, or held by cords, chains, hinges, or hooks to the car 100.
- the barrier 106 can be coupled to the car 100 (e.g., to a sidewall 102) with a hinge or similar device and can open like an automobile hood.
- the barrier 106 can have a lock or latch to fix the barrier 106 in a closed or open configuration.
- the permeable barrier 106 can lift or otherwise be moved during car loading or unloading. In further embodiments, other attachment mechanisms can be used.
- the barrier 106 can be angled or generally horizontal.
- the car 100 can include quench spray nozzles under the barrier 106 that can provide all or a portion of the quench fluid.
- the permeable barrier 106 can comprise one or more of a screen, curtain, mesh, or other structure configured to contain coke during the quench process while allowing quench fluid to pass therethrough and reach the contained coke.
- the permeable barrier 106 comprises a screen having apertures therein.
- the apertures have a diameter of approximately 0.25 inch (6.35 millimetre) to about 0.75 inch (19.05 millimetre).
- the apertures have dimensions of about 1.6 inch (40.64 millimetre) by about 0.56 inch (14.22 millimetre).
- different portions of the barrier 106 can have different size apertures.
- one sidewall portion 110 can have larger apertures than an opposing sidewall portion 110.
- an aperture pattern on the barrier 106 can match or complement a nozzle pattern in the quench tower 104.
- the barrier 106 has larger apertures on regions of the top portion 108 that are positioned under nozzles in the quench tower 104. These larger apertures can better receive quench water.
- apertures are exclusively placed under quench tower nozzles.
- other aperture patterns are used to optimize quench water distribution in the quench car 100.
- the apertures can have different shapes in different embodiments of the technology.
- the barrier 106 comprises stainless steel, high-carbon steel, AR400-AR500 steel, or other suitable material that can withstand the temperature and humidity conditions of the quench process.
- a chain-link-fence type of material can be used as a barrier 106.
- steel chains can be used.
- the barrier 106 can be flexible or rigid.
- the quench car 100 includes a deflection or containment plate 112 coupled to the sidewall 102.
- one or more containment plates 112 can be coupled to other sidewalls, quench car gates, the barrier 106, or the base of the quench car 100.
- the containment plate 112 can be positioned at a junction or corner between two sidewalls or between a sidewall and a top or base portion of the car 100. The containment plate 112 can overlap at least a portion of a sidewall 102 or car base.
- the containment plate 112 can have different shapes in various embodiments of the technology.
- the containment plate 112 can be shaped as a rectangle, circle, triangle, or other shape.
- the containment plate 112 can be curved or otherwise shaped to complement the shape of the quench car 100 or can be shaped to achieve a funneling or confining effect on the coke during processing.
- the containment plate 112 shown in Figure 1 is shaped as a fin extending along an edge of the sidewall 102.
- the containment plate 112 can fit against the car 100 tightly enough to contain coke while allowing used quench water to pass out of the car 100 to prevent the contained coke from sitting in water.
- the containment plate 112 can be on an internal or external surface of the quench car 100, or it can extend from an internal to an external portion.
- the containment plate 112 can be a solid surface or can have apertures therein.
- the barrier 106 can serve to contain coke and/or reflect "popping" coke back into the quench car 100 during quenching. More specifically, the barrier 106 can be sufficiently permeable to allow quench fluid to pass through and reach the coke while having small enough apertures to prohibit coke from jumping or popping from the car 100. The barrier 106 further allows quench steam to escape the car. The barrier sidewall portions 110 can further allow a cross-breeze to flow over the cooling coke.
- FIG 2A is an isometric view of a quench car 200 having side containment plates 212 configured to channel quenched coke onto a quench wharf 220 after the coke has been quenched in a quench tower 204.
- the quench car 200 can have containment plates 212 coupled to a sidewall 202 of the car 200.
- the sidewall 202 functions as a dump gate; when the car 200 is tilted toward the wharf and the sidewall gate 202 is open, the quenched coke is funneled by the containment plates 212 onto the wharf 220 to reduce side spillage.
- the containment plates 212 can serve to contain the coke during quenching or can prevent the coke from spilling out of the car 200 at junction points (i.e., the junction between two adjacent sidewalls or a sidewall and the base of the car 200).
- FIG 2B is an isometric partial cut-away view of a quench car 250 having a tailgate containment plate 262 configured in accordance with embodiments of the technology.
- the tailgate containment plate 262 functions generally in the manner of the containment plates 212 described above with reference to Figure 2A . More specifically, the tailgate containment plate 262 can bridge space between a base 264 of the car 250 and a sidewall gate 252. In several embodiments, the tailgate containment plate 262 is inclined relative to the base 264 of the car 250 and the sidewall gate 252. When the gate 252 is open, the tailgate containment plate 262 can prevent coke from falling between an opening between the base 264 and the gate 252.
- the tailgate containment plate 262 can further inhibit coke from building up at this junction and preventing the gate 252 from opening and closing.
- the tailgate containment plate 262 is movable relative to the sidewall gate 252 and/or the base 264 such that the tailgate containment plate 262 assumes different positions depending on whether the sidewall gate 252 is open or closed.
- Figure 2B also illustrates that the gate 252 can have a solid lower portion and a permeable upper portion.
- the gate 252 can be fully solid or fully permeable, or the lower portion can be permeable and the upper portion can be solid.
- the gate 252 can comprise multiple, separate portions (e.g., an upper portion and a lower portion) that can move independently of each other.
- the upper portion can be fixed (e.g., fixed to the car sidewalls) and the lower portion can be movable (i.e., open and close on a hinge) relative to the fixed upper portion.
- the upper and lower portions can be any combination of permeable and impermeable surfaces.
- the solid portion can help contain or channel quench steam.
- the gate 252 joins or can be sealed against a top portion (e.g., the top portion 108 shown in Figure 1 ) when the gate 252 is in a closed configuration.
- FIG 3 is a partially schematic illustration of a quench car 300 positioned in a quench tower 304 that has coke retaining features not according to the present invention.
- the quench tower 304 can be a byproduct quench tower, heat recovery quench tower, or any other similar system.
- the quench tower 304 includes a barrier 306 coupled thereto.
- the barrier 306 can be attached to any portion of the quench tower 304 framework and in various embodiments can be positioned above or below an array 370 of quench nozzles. In embodiments where the barrier 306 is below the nozzle array 370, the barrier 306 can be permeable to allow quench fluid to flow through.
- the barrier 306 can be permeable or impermeable. In any of these embodiments, the barrier 306 can serve to reflect or contain coke in the quench car 300 in the manner described above with reference to Figure 1 . In still further embodiments, as discussed above with reference to Figure 1 , the nozzle array 370 and barrier 306 can be positioned on the quench car 300 (either in addition to or lieu of placement on the tower 304).
- the barrier 306 can further comprise one or more sidewall portions 372 that extend downward from the generally horizontal plane. In further embodiments, the barrier 306 exclusively has sidewall portions 372 and not an upper portion.
- the sidewall portions 372 can be rigid or flexible curtains and can channel coke that flies during the quench process back into the quench car 300.
- the sidewall portions 372 can comprise numerous generally adjacent panels/chains or a single continuous panel.
- the sidewall portions 372 can be positioned on a track, rod, or other similar system to extend along or around the quench car 300 and then move away from the car 300 when not in use.
- the barrier 306 or sidewall portions 372 are permanent in their placement relative to the quench tower 304 or can be retracted upward into the quench tower 304 and drop downward over the car 300. In other embodiments, the barrier 306 can be dropped over the car 300 and/or retracted upward outside of the quench tower 304 by a crane or other lifting/dropping device. In further embodiments, the barrier 306 can detach from the quench tower 304. In some embodiments, a bottom portion of the sidewall portions 372 can be positioned in the interior portion of the car 300, such that any coke that hits the sidewall portions 372 will slide back into the car 300. In further embodiments, a bottom portion of the sidewall portions 372 is exterior of the car 300.
- Figure 4 is a partially schematic illustration of a quench car 400 positioned in a quench tower 404 having coke reclaim plates 472 not according to the present invention.
- the reclaim plates 472 extend downward and slope laterally inward toward the quench car 400.
- the reclaim plates 472 can have different angles either more or less directed inward toward the car 400.
- the reclaim plates 472 can channel coke that flies during the quench process back into the quench car 400 to increase coke recovery and reduce build-up at the base of the quench tower 404.
- the reclaim plates 472 are coupled to the car 400 instead of or in addition to being coupled to the quench tower 404.
- the reclaim plates 472 can be movable to adjust their angle with reference to the quench tower 404. This adjustability can be useful to vary the coke diversion characteristics of the reclaim plates 472 or to accommodate different sizes of quench cars 400 or movement of the car 400 with reference to the quench tower 404 (e.g., the reclaim plates 472 can fold away while the car 400 is driving into or out of the quench tower 404). While the illustrated embodiment shows the reclaim plates 472 below a nozzle array 470, in further embodiments the reclaim plates 472 are above or coplanar with the nozzle array 470.
- Figure 5 is a front view of a quench car 500 having containment plates 572 not according to the present invention.
- the containment plates 572 can extend upward from sidewalls 502 of the car 500 and reflect coke back into the car 500 during the quench process.
- the containment plates 572 can comprise any permeable or impermeable material, or a combination of these materials.
- a portion of the containment plates 572 closest to the sidewalls 502 is solid and impermeable while a portion of the containment plates 572 that extends farthest into the center of the car 500 is permeable.
- All or only some of the sidewalls 502 may include containment plates 572.
- only two opposing sidewalls 502 have containment plates thereon.
- the containment plates 572 are on one or more drain or dump gates on the car 500.
- the containment plates 572 can be angled inward at angle ⁇ such that flying coke hits the bottom of the containment plates 572 and deflects downward.
- the angle ⁇ can vary in alternate embodiments of the technology or can be adjustable (e.g., the containment plates 572 can be on hinges). In particular embodiments, the angle ⁇ can be from about 10 degrees to about 90 degrees relative to a vertical plane.
- the containment plates 572 can reduce coke breeze from moving downstream or clogging process flow.
- the car 500 can further include a top portion, such as the top portion 108 described above with reference to Figure 1 , that extends between sidewalls 502 (e.g., between the containment plates 572.
- the containment plates 572 can be used alone or in conjunction with any of the top portions (solid or permeable) described above.
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Description
- The present technology is generally directed to systems for improving quenched coke recovery. More specifically, some embodiments are directed to systems utilizing one or more of a screen, barrier, or reflector panel to contain coke during or after quenching.
- Quenching is an important step in many types of mineral processing, including coke processing. During quenching, a quench tower releases a large amount of water onto heated coke in a quench car in order to quickly cool the coke. The pre-quench coke is extremely hot, sometimes having a temperature greater than 2,000 degrees Fahrenheit (1093 degrees Celsius). Once the coke is cooled, it can be handled on transfer belts and be screened and sent to the customer.
- Traditionally, a large amount of coke is lost in the quenching process. More specifically, the combination of the force of the quench spray and the expansion of the quench water as it forms steam causes some of the coke to pop or fly out of the top and upper side edges of the quench car. This coke then falls by the wayside or is passed into a collecting water pit. To recover this coke, the water pit must be dredged, a costly and time-consuming process. The coke recovered from the pit is high in moisture and requires drying and sieving to reclaim, as the coke must have a relatively low moisture content to be useful to many customers. Therefore, there exists a need to improve coke recovery during the quench process.
-
EP 0 319 708 A2 discloses a coke quenching vessel with a double-walled bottom and side design. -
CN 202 415 446 U discloses a coke shielding cover of a quenching tower. -
-
Figure 1 is an isometric, partial cut-away view of a quench car that is entering a quench tower. -
Figure 2A is an isometric view of a quench car that has side containment plates for channeling quenched coke onto a quench wharf. -
Figure 2B is an isometric, partial cut-away view of a quench car having a tailgate containment plate configured in accordance with embodiments of the technology. -
Figure 3 is a partially schematic illustration of a quench car positioned in a quench tower that has coke retaining features not according to the present invention. -
Figure 4 is a partially schematic illustration of a quench car positioned in a quench tower that has coke retaining features not according to the present invention. -
Figure 5 is a front view of a quench car having coke retaining features not according to the present invention. - The present technology is generally directed to systems for improving quenched coke recovery. More specifically, some embodiments are directed to systems utilizing one or more of a screen, barrier, or reflector panel to contain coke during or after quenching.
- The invention relates to a quench car system for containing coke prepared for quenching at a quenching site as defined in claims 1-12.
- Specific details are described below with reference to
Figures 1-5 . Other details describing well-known structures and systems often associated with coal processing and/or quenching have not been set forth in the following disclosure to avoid unnecessarily obscuring the description of the various embodiments of the technology. Many of the details, dimensions, angles, and other features shown in the Figures are merely illustrative of particular embodiments of the technology. Accordingly, other embodiments can have other details, dimensions, angles, and features without departing from the spirit or scope of the present technology. A person of ordinary skill in the art, therefore, will accordingly understand that the technology may have other embodiments with additional elements, or the technology may have other embodiments without several of the features shown and described below with reference toFigures 1-5 . -
Figure 1 is an isometric, partial cut-away view of aquench car 100 that is entering aquench tower 104. Thequench car 100 includes a plurality ofsidewalls 102 arranged to enclose or at least partially surround a space configured to contain coke in a coke processing system. In further embodiments, thequench car 100 can be used in other mineral processing systems. While thecar 100 is described herein as a "quench" car, not according to the present invention, it can comprise a "hot" car configured to receive coke from a coke oven, a quench train, a coke-moving car, a combined hot/quench car, or other container. - The
quench car 100 includes apermeable deflection barrier 106 having atop portion 108 and one ormore sidewall portions 110. In some embodiments, thebarrier 106 comprises only one of atop portion 108 or sidewall portion 110 (not according to the invention), or extends across only a portion of the top of thequench car 100. In various embodiments, thetop portion 108 is integral with thesidewall portions 110 or can be detachably coupled to thesidewall portions 110 or to thesidewalls 102. While thebarrier sidewall portion 110 is illustrated as occupying only an upper portion of thesidewalls 102, in further embodiments more or less of thesidewalls 102 can comprise the permeable barrier. For example, including apertures or a permeable barrier on a lower portion of thesidewalls 102 can allow quench water to exit thecar 100 after the quench and prevent the coke from sitting in quench fluid. - The
permeable barrier 106 is removably coupled to thequench car 100. For example, as will be discussed in further detail below, in embodiments not according to the invention, thebarrier 106 can be held above thecar 100 by thequench tower 104 or other structure. In embodiments where thepermeable barrier 106 is removably coupled to thequench car 100, the permeable barrier can be latched, friction fit, draped over, or held by cords, chains, hinges, or hooks to thecar 100. For example, thebarrier 106 can be coupled to the car 100 (e.g., to a sidewall 102) with a hinge or similar device and can open like an automobile hood. In some embodiments, thebarrier 106 can have a lock or latch to fix thebarrier 106 in a closed or open configuration. In some embodiments, thepermeable barrier 106 can lift or otherwise be moved during car loading or unloading. In further embodiments, other attachment mechanisms can be used. Thebarrier 106 can be angled or generally horizontal. In some embodiments not according to the invention, thecar 100 can include quench spray nozzles under thebarrier 106 that can provide all or a portion of the quench fluid. - The
permeable barrier 106 can comprise one or more of a screen, curtain, mesh, or other structure configured to contain coke during the quench process while allowing quench fluid to pass therethrough and reach the contained coke. In particular embodiments, thepermeable barrier 106 comprises a screen having apertures therein. In some embodiments, the apertures have a diameter of approximately 0.25 inch (6.35 millimetre) to about 0.75 inch (19.05 millimetre). In another particular embodiment, the apertures have dimensions of about 1.6 inch (40.64 millimetre) by about 0.56 inch (14.22 millimetre). In still further embodiments, different portions of thebarrier 106 can have different size apertures. For example, in some embodiments, onesidewall portion 110 can have larger apertures than anopposing sidewall portion 110. In another embodiment, an aperture pattern on thebarrier 106 can match or complement a nozzle pattern in thequench tower 104. - According to the invention, the
barrier 106 has larger apertures on regions of thetop portion 108 that are positioned under nozzles in thequench tower 104. These larger apertures can better receive quench water. In still further embodiments, apertures are exclusively placed under quench tower nozzles. In other embodiments, other aperture patterns are used to optimize quench water distribution in thequench car 100. Further, the apertures can have different shapes in different embodiments of the technology. - In some embodiments, the
barrier 106 comprises stainless steel, high-carbon steel, AR400-AR500 steel, or other suitable material that can withstand the temperature and humidity conditions of the quench process. In a particular embodiment, a chain-link-fence type of material can be used as abarrier 106. In another embodiment, steel chains can be used. Thebarrier 106 can be flexible or rigid. - In some embodiments, the quench
car 100 includes a deflection orcontainment plate 112 coupled to thesidewall 102. In various embodiments, as will be described in further detail below, one ormore containment plates 112 can be coupled to other sidewalls, quench car gates, thebarrier 106, or the base of the quenchcar 100. In particular embodiments, thecontainment plate 112 can be positioned at a junction or corner between two sidewalls or between a sidewall and a top or base portion of thecar 100. Thecontainment plate 112 can overlap at least a portion of asidewall 102 or car base. - The
containment plate 112 can have different shapes in various embodiments of the technology. For example, thecontainment plate 112 can be shaped as a rectangle, circle, triangle, or other shape. Thecontainment plate 112 can be curved or otherwise shaped to complement the shape of the quenchcar 100 or can be shaped to achieve a funneling or confining effect on the coke during processing. For example, as will be described in further detail below with reference toFigure 2 , thecontainment plate 112 shown inFigure 1 is shaped as a fin extending along an edge of thesidewall 102. In some embodiments, thecontainment plate 112 can fit against thecar 100 tightly enough to contain coke while allowing used quench water to pass out of thecar 100 to prevent the contained coke from sitting in water. Thecontainment plate 112 can be on an internal or external surface of the quenchcar 100, or it can extend from an internal to an external portion. Thecontainment plate 112 can be a solid surface or can have apertures therein. - In operation, the
barrier 106 can serve to contain coke and/or reflect "popping" coke back into the quenchcar 100 during quenching. More specifically, thebarrier 106 can be sufficiently permeable to allow quench fluid to pass through and reach the coke while having small enough apertures to prohibit coke from jumping or popping from thecar 100. Thebarrier 106 further allows quench steam to escape the car. Thebarrier sidewall portions 110 can further allow a cross-breeze to flow over the cooling coke. -
Figure 2A is an isometric view of a quenchcar 200 havingside containment plates 212 configured to channel quenched coke onto a quenchwharf 220 after the coke has been quenched in a quenchtower 204. As described above with reference toFigure 1 , the quenchcar 200 can havecontainment plates 212 coupled to asidewall 202 of thecar 200. In the illustrated embodiment, thesidewall 202 functions as a dump gate; when thecar 200 is tilted toward the wharf and thesidewall gate 202 is open, the quenched coke is funneled by thecontainment plates 212 onto thewharf 220 to reduce side spillage. In further embodiments, thecontainment plates 212 can serve to contain the coke during quenching or can prevent the coke from spilling out of thecar 200 at junction points (i.e., the junction between two adjacent sidewalls or a sidewall and the base of the car 200). -
Figure 2B is an isometric partial cut-away view of a quenchcar 250 having atailgate containment plate 262 configured in accordance with embodiments of the technology. Thetailgate containment plate 262 functions generally in the manner of thecontainment plates 212 described above with reference toFigure 2A . More specifically, thetailgate containment plate 262 can bridge space between a base 264 of thecar 250 and asidewall gate 252. In several embodiments, thetailgate containment plate 262 is inclined relative to thebase 264 of thecar 250 and thesidewall gate 252. When thegate 252 is open, thetailgate containment plate 262 can prevent coke from falling between an opening between the base 264 and thegate 252. Thetailgate containment plate 262 can further inhibit coke from building up at this junction and preventing thegate 252 from opening and closing. In several embodiments, thetailgate containment plate 262 is movable relative to thesidewall gate 252 and/or the base 264 such that thetailgate containment plate 262 assumes different positions depending on whether thesidewall gate 252 is open or closed. -
Figure 2B also illustrates that thegate 252 can have a solid lower portion and a permeable upper portion. In further embodiments, thegate 252 can be fully solid or fully permeable, or the lower portion can be permeable and the upper portion can be solid. In still further embodiments, thegate 252 can comprise multiple, separate portions (e.g., an upper portion and a lower portion) that can move independently of each other. In still further embodiments, the upper portion can be fixed (e.g., fixed to the car sidewalls) and the lower portion can be movable (i.e., open and close on a hinge) relative to the fixed upper portion. The upper and lower portions can be any combination of permeable and impermeable surfaces. In embodiments where at least a portion of thegate 252 is solid, the solid portion can help contain or channel quench steam. In some embodiments, thegate 252 joins or can be sealed against a top portion (e.g., thetop portion 108 shown inFigure 1 ) when thegate 252 is in a closed configuration. -
Figure 3 is a partially schematic illustration of a quenchcar 300 positioned in a quenchtower 304 that has coke retaining features not according to the present invention. The quenchtower 304 can be a byproduct quench tower, heat recovery quench tower, or any other similar system. The quenchtower 304 includes abarrier 306 coupled thereto. Thebarrier 306 can be attached to any portion of the quenchtower 304 framework and in various embodiments can be positioned above or below anarray 370 of quench nozzles. In embodiments where thebarrier 306 is below thenozzle array 370, thebarrier 306 can be permeable to allow quench fluid to flow through. In embodiments where thebarrier 306 is coplanar or above thenozzle array 370, thebarrier 306 can be permeable or impermeable. In any of these embodiments, thebarrier 306 can serve to reflect or contain coke in the quenchcar 300 in the manner described above with reference toFigure 1 . In still further embodiments, as discussed above with reference toFigure 1 , thenozzle array 370 andbarrier 306 can be positioned on the quench car 300 (either in addition to or lieu of placement on the tower 304). - In several embodiments, the
barrier 306 can further comprise one ormore sidewall portions 372 that extend downward from the generally horizontal plane. In further embodiments, thebarrier 306 exclusively hassidewall portions 372 and not an upper portion. Thesidewall portions 372 can be rigid or flexible curtains and can channel coke that flies during the quench process back into the quenchcar 300. In various embodiments, thesidewall portions 372 can comprise numerous generally adjacent panels/chains or a single continuous panel. In still further embodiments, thesidewall portions 372 can be positioned on a track, rod, or other similar system to extend along or around the quenchcar 300 and then move away from thecar 300 when not in use. In various embodiments, thebarrier 306 orsidewall portions 372 are permanent in their placement relative to the quenchtower 304 or can be retracted upward into the quenchtower 304 and drop downward over thecar 300. In other embodiments, thebarrier 306 can be dropped over thecar 300 and/or retracted upward outside of the quenchtower 304 by a crane or other lifting/dropping device. In further embodiments, thebarrier 306 can detach from the quenchtower 304. In some embodiments, a bottom portion of thesidewall portions 372 can be positioned in the interior portion of thecar 300, such that any coke that hits thesidewall portions 372 will slide back into thecar 300. In further embodiments, a bottom portion of thesidewall portions 372 is exterior of thecar 300. -
Figure 4 is a partially schematic illustration of a quenchcar 400 positioned in a quenchtower 404 having coke reclaimplates 472 not according to the present invention. In the illustrated embodiment, the reclaimplates 472 extend downward and slope laterally inward toward the quenchcar 400. In other embodiments, the reclaimplates 472 can have different angles either more or less directed inward toward thecar 400. The reclaimplates 472 can channel coke that flies during the quench process back into the quenchcar 400 to increase coke recovery and reduce build-up at the base of the quenchtower 404. In further embodiments, the reclaimplates 472 are coupled to thecar 400 instead of or in addition to being coupled to the quenchtower 404. Further, in some embodiments, the reclaimplates 472 can be movable to adjust their angle with reference to the quenchtower 404. This adjustability can be useful to vary the coke diversion characteristics of the reclaimplates 472 or to accommodate different sizes of quenchcars 400 or movement of thecar 400 with reference to the quench tower 404 (e.g., the reclaimplates 472 can fold away while thecar 400 is driving into or out of the quench tower 404). While the illustrated embodiment shows the reclaimplates 472 below anozzle array 470, in further embodiments the reclaimplates 472 are above or coplanar with thenozzle array 470. -
Figure 5 is a front view of a quenchcar 500 havingcontainment plates 572 not according to the present invention. Thecontainment plates 572 can extend upward fromsidewalls 502 of thecar 500 and reflect coke back into thecar 500 during the quench process. Thecontainment plates 572 can comprise any permeable or impermeable material, or a combination of these materials. For example, in a particular embodiment, a portion of thecontainment plates 572 closest to thesidewalls 502 is solid and impermeable while a portion of thecontainment plates 572 that extends farthest into the center of thecar 500 is permeable. All or only some of thesidewalls 502 may includecontainment plates 572. For example, in some embodiments, only two opposingsidewalls 502 have containment plates thereon. In particular embodiments, thecontainment plates 572 are on one or more drain or dump gates on thecar 500. - While the
sidewalls 502 can be generally orthogonal to the base of thecar 500, thecontainment plates 572 can be angled inward at angle θ such that flying coke hits the bottom of thecontainment plates 572 and deflects downward. The angle θ can vary in alternate embodiments of the technology or can be adjustable (e.g., thecontainment plates 572 can be on hinges). In particular embodiments, the angle θ can be from about 10 degrees to about 90 degrees relative to a vertical plane. Thecontainment plates 572 can reduce coke breeze from moving downstream or clogging process flow. In some embodiments, thecar 500 can further include a top portion, such as thetop portion 108 described above with reference toFigure 1 , that extends between sidewalls 502 (e.g., between thecontainment plates 572. Thecontainment plates 572 can be used alone or in conjunction with any of the top portions (solid or permeable) described above. - From the foregoing it will be appreciated that, although specific embodiments of the technology have been described herein for purposes of illustration, various modifications may be made without deviating from the scope of the technology. Further, certain aspects of the new technology described in the context of particular embodiments may be combined or eliminated in other embodiments. Moreover, while advantages associated with certain embodiments of the technology have been described in the context of those embodiments, other embodiments may also exhibit such advantages, and not all embodiments need necessarily exhibit such advantages to fall within the scope of the technology. Accordingly, the disclosure and associated technology can encompass other embodiments not expressly shown or described herein. Thus, the disclosure is not limited except as by the appended claims.
Claims (12)
- A quench car system for containing coke prepared for quenching at a quenching site, the quench car (100) system comprising:a quench car (100) having a base and a plurality of sidewalls (102) defining an opening, the quench car (100) having a top; anda permeable barrier (106) removably coupled to the quench car (100) covering at least a portion of the top of the quench car (100), the permeable barrier (106) having a plurality of apertures therethrough,characterised in that the quench car system further comprises a quench tower (104) having a nozzle positioned above the quench car (100), wherein an individual aperture of the permeable barrier (106) positioned under the nozzle is generally vertically aligned with the nozzle and has a diameter larger than a diameter of another individual aperture of the permeable barrier (106).
- The quench car system of claim 1 wherein the permeable barrier (106) extends across the top of the quench car (100) and at least one sidewall.
- The quench car system of claim 1 wherein the individual apertures have a diameter from 0.25 inch (6.35 millimetre) to 0.75 inch (19.05 millimetre).
- The quench car system of claim 1 wherein the quench car (100) further comprises a containment plate (112) coupled to one or more sidewalls (102) and configured to contain or funnel coke or quench water.
- The quench car system of claim 4 wherein an individual sidewall comprises a movable gate, and wherein the containment plate (112) extends along the gate and is movable between a first position when the gate is open and a second position when the gate is closed.
- The quench car system of claim 4 wherein two sidewalls (102) meet at a corner, and wherein the containment plate (112) is positioned adjacent to the corner and overlaps at least one of the sidewalls (102).
- The quench car system of claim 1 wherein the permeable barrier (106) comprises stainless steel.
- The quench car system of claim 1 wherein the permeable barrier (106) is spaced apart from the top of the quench car (100).
- The quench car system of any preceding claim, wherein the plurality of sidewalls (102) extend generally orthogonally upward from the base and surround a central region configured to contain coke, wherein the individual sidewalls (102) comprise a lower portion adjacent to the base and an upper portion opposite the lower portion, and wherein the upper portion of at least one sidewall is angled laterally inward toward the central region.
- The coke quench car (100) of claim 9 wherein the upper portion comprises a solid barrier.
- The coke quench car (100) of claim 9 wherein the upper portion is angled inward at an angle from 10 degrees to 90 degrees relative to a vertical plane.
- The coke quench car (100) of claim 9 wherein the upper portions of two opposing sidewalls (102) are angled laterally inward toward the central region.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12890832T PL2938704T3 (en) | 2012-12-28 | 2012-12-28 | Quench car system for improving quenched coke recovery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2012/072166 WO2014105061A1 (en) | 2012-12-28 | 2012-12-28 | Systems and methods for improving quenched coke recovery |
Publications (3)
Publication Number | Publication Date |
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EP2938704A1 EP2938704A1 (en) | 2015-11-04 |
EP2938704A4 EP2938704A4 (en) | 2016-07-13 |
EP2938704B1 true EP2938704B1 (en) | 2019-08-07 |
Family
ID=51021874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP12890832.4A Active EP2938704B1 (en) | 2012-12-28 | 2012-12-28 | Quench car system for improving quenched coke recovery |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2938704B1 (en) |
CN (1) | CN104903424A (en) |
CA (1) | CA2896473C (en) |
PL (1) | PL2938704T3 (en) |
WO (1) | WO2014105061A1 (en) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE748087C (en) * | 1939-10-06 | 1944-10-26 | Device for transferring the glowing coke from lying coke ovens with a glare shield against the view of the pilot | |
DE2712111A1 (en) * | 1977-03-19 | 1978-09-28 | Otto & Co Gmbh Dr C | FOR TAKING A COOKING FIRE SERVANT, CARRIAGE OF CARRIAGE ALONG A BATTERY OF CARBON OVENS |
US4141796A (en) * | 1977-08-08 | 1979-02-27 | Bethlehem Steel Corporation | Coke oven emission control method and apparatus |
DE3741893A1 (en) * | 1987-12-10 | 1989-06-22 | Hartung Kuhn & Co Maschf | COCK HOLDER |
JP2001164259A (en) * | 1999-12-08 | 2001-06-19 | Shinagawa Refract Co Ltd | Quenching box for carbonization furnace |
US8152970B2 (en) * | 2006-03-03 | 2012-04-10 | Suncoke Technology And Development Llc | Method and apparatus for producing coke |
CN100569908C (en) * | 2007-05-24 | 2009-12-16 | 中冶焦耐工程技术有限公司 | Dome type dust removing coke quenching machine |
CN201264981Y (en) * | 2008-09-01 | 2009-07-01 | 鞍钢股份有限公司 | Coke shield cover of coke quenching car |
US7998316B2 (en) * | 2009-03-17 | 2011-08-16 | Suncoke Technology And Development Corp. | Flat push coke wet quenching apparatus and process |
CN101649210B (en) * | 2009-06-18 | 2014-01-01 | 张家港长力机械有限公司 | Water accumulating quenched-coke receiving slot |
CN202415446U (en) * | 2012-01-06 | 2012-09-05 | 山东潍焦集团有限公司 | Coke shielding cover of quenching tower |
-
2012
- 2012-12-28 WO PCT/US2012/072166 patent/WO2014105061A1/en active Application Filing
- 2012-12-28 CA CA2896473A patent/CA2896473C/en active Active
- 2012-12-28 PL PL12890832T patent/PL2938704T3/en unknown
- 2012-12-28 EP EP12890832.4A patent/EP2938704B1/en active Active
- 2012-12-28 CN CN201280077764.XA patent/CN104903424A/en active Pending
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
WO2014105061A1 (en) | 2014-07-03 |
EP2938704A4 (en) | 2016-07-13 |
CN104903424A (en) | 2015-09-09 |
CA2896473A1 (en) | 2014-07-03 |
PL2938704T3 (en) | 2020-03-31 |
EP2938704A1 (en) | 2015-11-04 |
CA2896473C (en) | 2018-06-05 |
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