Methods and systems for improved coke quenching
11807812 · 2023-11-07
Assignee
Inventors
- John Francis Quanci (Haddonfield, NJ)
- John Shannon Essman (Wheelersburg, OH)
- James Eric Bond (Portsmouth, OH)
- Khambath Vichitvongsa (Marysville, IL)
- Chun Wai Choi (Chicago, IL)
Cpc classification
International classification
Abstract
The present technology describes various embodiments of methods and systems for improved coke quenching. More specifically, some embodiments are directed to methods and systems for improving the coke quenching process by partially cracking coke before it is quenched. In one embodiment, coke is partially cracked when placed in horizontal communication with one or more uneven surfaces. In another embodiment, a coke loaf is partially broken when dropped a vertical distance that is less than the height of the coke loaf. In another embodiment, a mass of coke is partially broken when first placed in vertical communication with one or more uneven surfaces and then placed in horizontal communication with the same or different one or more uneven surfaces. In some embodiments, the one or more uneven surfaces may be mounted to a coke oven, train car, hot car, quench car, or combined hot car/quench car.
Claims
1. A system for producing quenched coke, comprising: a coke oven for receiving an amount of coal and heating the amount of coal to produce coke; a plurality of bump plates, wherein the bump plates are disposed (i) over a base surface able to withstand temperatures of the coke and (ii) such that individual bump plates abut one another, individual ones of the plurality of bump plates including— a base portion including a first end region, a second end region, and an intermediate region between the first end region and the second end region, wherein the base portion is planar and a top surface of the base portion is spaced apart from the base surface by a thickness of the base portion; and one or more raised portions at the intermediate region of the base portion, the one of more raised portions extending from the base portion, wherein the one or more raised portions are configured to crack the coke when the coke is put into communication with the one or more raised portions; a quenching tower for receiving the coke and quenching the coke; and one or more train cars for transporting the coke from the coke oven to the quenching tower.
2. The system of claim 1, wherein individual ones of the one or more raised portions comprise a rounded portion.
3. The system of claim 1, wherein individual ones of the one or more raised portions comprises an angled ramp, the angled ramp being attached to the base portion at an angle that is between 90 and 180 degrees with respect to a planar outermost surface of the base portion.
4. The system of claim 1, wherein the coke oven comprises the surface that the one or more bump plates are configured to be disposed over.
5. The system of claim 1, further comprising a hot car comprising the base surface that the plurality of bump plates are configured to be disposed over.
6. The system of claim 1, wherein one of the one or more train cars comprises the base surface that the plurality of bump plates are configured to be disposed over.
7. The system of claim 1, further comprising a quench car comprising the base surface that the plurality of bump plates are configured to be disposed over.
8. The system of claim 1, wherein the amount of coal is stamp charged.
9. The system of claim 1, wherein the amount of coal is not stamped charged.
10. The system of claim 1, wherein the base portion includes a first dimension and a second dimension orthogonal to the first dimension, and wherein the one or more raised portions extends across an entirety of one of the first dimension or the second dimension.
11. The system of claim 1, wherein the one or more raised portions extending outwardly from the base portion such that an outermost area of the intermediate region is spaced apart from the top surface of the base portion by a first distance and is spaced apart from the base surface by a second distance greater than the first distance.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION
(33) The present technology describes various embodiments of methods and systems for improved coke quenching. More specifically, some embodiments are directed to methods and systems for improving the coke quenching process by partially cracking coke in order to improve the efficiency of the quenching process. In one embodiment, a coke loaf is partially cracked when placed in vertical communication with a surface over a vertical distance that is less than the height of the coke loaf. In another embodiment, coke is partially cracked when placed in vertical or horizontal communication with one or more uneven surfaces such as a bump plate, an angle ramp plate, an inclined ramp plate, or a combination or hybrid thereof. In another embodiment, a mass of coke is partially cracked when first placed in vertical communication with one or more uneven surfaces such as a bump plate, an angle ramp plate, an inclined ramp plate, or a combination or hybrid thereof, and then placed in horizontal communication with the same or a different uneven surface. In some embodiments, the one or more uneven surfaces may be mounted to a coke oven, train car, hot car, quench car, or combined hot car/quench car. Additionally, in some embodiments, one or more kick plates may be mounted to the tailgate of the train car, hot car, quench car, or combined hot car/quench car to place the rear portions of the coke in further communication with the uneven surface and/or the kick plate when the tailgate is closed. By placing the coke in communication with the uneven surfaces and/or the kick plate, the coke is cracked to yield pieces of coke without generating a significant amount of fly coke. In addition, the cracks in the coke enable liquid used during the quenching process to more efficiently penetrate and lower the temperature of the coke. Accordingly, the present technology improves the quenching process by reducing quench times, reducing liquid usage, minimizing risk to coke plant equipment, and minimizing the amount of fly coke during the quenching process.
(34) Specific details of several embodiments of the technology are described below with reference to
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(39) A person of ordinary skill will appreciate that open bump plate 200, closed bump plate 300, or hybrid bump plate 400 may be fastened to surface 230, surface 330, or surface 430 in a variety of ways that may or may not require the use of mounting holes 210, 310, or 410, including welded or chemically bonded connections.
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(41) Angle ramp 515 may rest on one or more support structures situated between angle ramp 515 and base 505. For example, in one embodiment, angle ramp 515 may rest on wedge support 535, which is situated between the angle ramp and the base. Additionally or alternatively, angle ramp 515 may rest on stud support 540, which is situated between the angle ramp and the base. By including wedge support 535 and/or stud support 540, angle ramp plate 500 thereby becomes capable of cracking a larger and heavier amount of coke. A person of ordinary skill will appreciate that angle ramp plate 500 may be fastened to surface 530 in a variety of ways that may or may not require the use of mounting holes 510, including welded or chemically bonded connections. A person of ordinary skill will further appreciate that wedge support 535, stud support 540, or additional structures (not shown) may be used either alone or in various combinations to enclose the area underneath angle ramp 515 to prevent coke, water, steam or other undesirable materials from becoming trapped underneath the angle ramp. A person of ordinary skill will further appreciate that angle ramp 515, wedge support 535, stud support 540, or additional structures (not shown) used to enclose the area underneath the angle ramp may contain one or more breather holes (not shown) to allow coke, water, steam, or other undesirable materials to exit the area underneath the angle ramp.
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(43) A person of ordinary skill will appreciate that a variety of plate designs may be used in accordance with embodiments of the invention, including designs that differ in shape and construction from the plates described herein, designs that incorporate and/or omit specific aspects of various designs described herein, and designs that combine various aspects from different designs described herein to form alternative or hybrid designs. For example,
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(45) One or more plates may be coupled together to form a plate array that covers a larger area than an individual plate and is effective at cracking coke that is placed in vertical or horizontal communication therewith. For example,
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(47) To place the remaining coke in communication with the plate array, the tailgate 1050 of the train car may be equipped with a kick plate mounted thereto. In one embodiment, depicted in
(48) In some embodiments, train car 125 may also include one or more stoppers 1065 or 1070 that prevent the coke from blocking one or more drain gates (not shown) on the train car as the coke is pushed farther inside of the train car. The stoppers may be placed on all sides of the train car, no sides of the train car, or one or more particular sides of the train car. For example, FIG. 10C illustrates an embodiment having stoppers on three sides of the train car while omitting the stopper on the fourth side of the train car. By not allowing the coke to block the drain gates, liquid used during quenching drains from the train car more rapidly, thereby improving the efficiency of the quenching process. A person of ordinary skill will appreciate that the stopper may take a variety of different shapes, such as a trapezoid (e.g., stopper 1065) or a square (e.g., stopper 1070).
(49) In addition to cracking coke by placing the coke in horizontal or vertical communication with an uneven surface, other embodiments crack coke prior to quenching by dropping the coke loaf over a distance that is less than the height of the coke loaf. For example,
EXAMPLES
(50) 1. A method of producing quenched coke, comprising: disposing an amount of coal into a coke oven located at a first location; heating the amount of coal to produce coke; cracking the coke at a second location, wherein the cracking comprises placing the coke in communication with an uneven surface having a base and one or more raised portions extending from the base; and quenching the coke to form quenched coke. 2. The method of example 1, wherein the one or more raised portions comprises one or more bumps attached to the base, each bump having a rounded portion. 3. The method of example 1, wherein the one or more raised portions comprises one or more angle ramps attached to the base, each angle ramp being attached to the base at an angle that is between 90 and 180 degrees with respect to a front portion and a side portion of the base. 4. The method of example 1, wherein the one or more raised portions comprises one or more inclined ramps attached to a base, each inclined ramp being attached to the base at an angle that is between 90 and 180 degrees with respect to a front portion of the base. 5. The method of example 1, wherein the uneven surface is mounted to a coke oven. 6. The method of example 1, wherein the uneven surface is mounted to a train car. 7. The method of example 1, wherein the uneven surface is mounted to a hot car. 8. The method of example 1, wherein the uneven surface is mounted to a quench car. 9. The method of example 1, wherein the uneven surface is mounted to a combined hot car/quench car. 10. The method of example 1, wherein the amount of coal is stamp charged. 11. The method of example 1, wherein the amount of coal is not stamped charged. 12. The method of example 1, wherein the first location and the second location are substantially parallel. 13. The method of any of example 6, 7, 8, or 9, further comprising cracking the coke by partially or fully closing a tailgate that is attached to the car, wherein the tailgate includes a kick plate mounted thereto, wherein the kick plate comprises an angle wedge, and wherein the partially or fully closing the tailgate places the kick plate in communication with the coke to further crack the coke. 14. The method of any of example 6, 7, 8, or 9, further comprising cracking the coke by partially or fully closing a tailgate that is attached to the car, wherein the tailgate includes a kick plate mounted thereto, wherein the kick plate comprises one or more tines that are substantially perpendicular to the tailgate, and wherein the partially or fully closing the tailgate places the kick plate in communication with the coke to further crack the coke. 15. A system for producing quenched coke, comprising: a coke oven for receiving an amount of coal and heating the amount of coal to produce coke; one or more uneven surfaces for cracking the coke when the coke is put into communication with the one or more uneven surfaces, the one or more uneven surfaces having a base and one or more raised portions extending from the base; a quenching tower for receiving the coke and quenching the coke; and one or more train cars for transporting the coke from the coke oven to the quenching tower. 16. The system of example 15, wherein the one or more raised portions comprises one or more bumps attached to a base, each bump having a rounded portion. 17. The system of example 15, wherein the one or more raised portions comprises one or more angle ramps attached to a base, each angle ramp being attached to the base at an angle that is between 90 and 180 degrees with respect to a front portion and a side portion of the base. 18. The system of example 15, wherein the one or more raised portions comprises one or more inclined ramps attached to a base, each inclined ramp being attached to the base at an angle that is between 90 and 180 degrees with respect to a front portion of the base. 19. The system of example 15, wherein the uneven surface is mounted to a coke oven. 20. The system of example 15, wherein the uneven surface is mounted to a hot car. 21. The system of examples 15, wherein the uneven surface is mounted to a train car. 22. The system of example 15, wherein the uneven surface is mounted to a quench car. 23. The system of example 15, wherein the uneven surface is mounted to a combined hot car/quench car. 24. The system of example 15, wherein the amount of coal is stamp charged. 25. The system of example 15, wherein the amount of coal is not stamped charged. 26. The system of example 15, wherein the coke oven and the uneven surfaces are substantially parallel. 27. The system of any of examples 20, 21, 22, or 23, further comprising cracking the coke by partially or fully closing a tailgate that is attached to the car, wherein the tailgate includes a kick plate mounted thereto, wherein the kick plate comprises an angle wedge, and wherein the partially or fully closing the tailgate places the kick plate in communication with the coke to further crack the coke. 28. The system of any of examples 20, 21, 22, or 23, further comprising cracking the coke by partially or fully closing a tailgate that is attached to the car, wherein the tailgate includes a kick plate mounted thereto, wherein the kick plate comprises one or more tines that are substantially perpendicular to the tailgate, and wherein the partially or fully closing the tailgate places the kick plate in communication with the coke to further crack the coke. 29. A method of producing quenched coke, comprising: disposing an amount of coal onto a coke oven; heating the amount of coal to produce a coke loaf having a height; transferring the coke loaf from a first location having a first elevation to a second location having a second elevation, wherein the difference in height between the first elevation and the second elevation is less than the height of the coke cake, and further wherein the transferring includes cracking the coke loaf by placing the coke loaf in vertical communication with the second location; and quenching the coke to form quenched coke. 30. The method of example 29, wherein the first location is a coke oven and the second location is a train car. 31. The method of example 29, wherein the first location is a coke oven and the second location is a hot car. 32. The method of example 29, wherein the first location is a coke oven and the second location is a quench car. 33. The method of example 29, wherein the first location is a coke oven and the second location is a combined hot car/quench car. 34. The method of example 29, wherein the first location is a first train car and the second location is a second train car. 35. The method of example 29, wherein the first location is a hot car and the second location is a quench car. 36. The method of example 29, wherein the amount of coal is stamp charged. 37. The method of example 29, wherein the amount of coal is not stamped charged. 38. A method of producing quenched coke, comprising: disposing an amount of coal into a coke oven; heating the amount of coal to produce coke; transporting the coke from the coke oven to a train car, wherein the transporting includes cracking the coke by placing the coke in communication with an uneven surface mounted in the train car as the coke travels from the coke oven to the train car, wherein the uneven surface has a base and one or more raised portions extending from the base; transporting the cracked coke to a quench tower; and quenching the coke to form quenched coke.
(51) 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 spirit and 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.