EP0091471B1 - Dispositif d'extinction du coke - Google Patents

Dispositif d'extinction du coke Download PDF

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Publication number
EP0091471B1
EP0091471B1 EP19820903232 EP82903232A EP0091471B1 EP 0091471 B1 EP0091471 B1 EP 0091471B1 EP 19820903232 EP19820903232 EP 19820903232 EP 82903232 A EP82903232 A EP 82903232A EP 0091471 B1 EP0091471 B1 EP 0091471B1
Authority
EP
European Patent Office
Prior art keywords
coke
quenching device
vessel
extinguishing
quenching
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.)
Expired
Application number
EP19820903232
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German (de)
English (en)
Other versions
EP0091471A1 (fr
Inventor
Johann Georg Riecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hartung Kuhn and Co Maschinenfabrik GmbH
Original Assignee
Hartung Kuhn and Co Maschinenfabrik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP0091471A1 publication Critical patent/EP0091471A1/fr
Application granted granted Critical
Publication of EP0091471B1 publication Critical patent/EP0091471B1/fr
Expired legal-status Critical Current

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    • 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 invention relates to a coke quenching device according to the preamble of patent claim 1.
  • Coke quenchers are known. So z. B. in DE-PS 873 686 describes a device for extinguishing coke, which has a container with an inclined bottom and at the lower end of an opening for the escape of water vapor. During the spraying of extinguishing water, the container is provided with a tightly fitting lid. The steam generated during the extinguishing process flows through the glowing coke mass in the extinguishing container and leaves the container through the opening at the bottom end.
  • this device When using modern coke ovens, this device must be moved during the pressing-out process to take up the glowing coke and must have a length of about 14 to 24 m. This makes dedusting very difficult, since the detection hoods have to be very large and considerable amounts of gases containing dust have to be extracted. Also, because of the very obliquely arranged floor, the coke bed in the fire truck and therefore the flow of water vapor is very uneven, which leads to considerable differences in the coke temperature and in the coke moisture. Finally, the device is not suitable for using the gases released during the extinguishing, such as water vapor, for further use.
  • a method and a device for extinguishing a heated bulk material, in particular coke are known.
  • the coke to be cooled lies in a container on a permeable floor.
  • the container is closed with a lid with outlet openings for the extinguishing water.
  • the extinguishing container rests on a box, the upper part of which consists of grate bars and forms the permeable container bottom. At least one of the side walls of the box can be pivoted outwards.
  • the maximum bed height of the coke is reduced by about 600 mm through the box under the perforated bottom of the extinguishing container according to DE-PS 23 20 057. This can lead to difficulties with older coke oven batteries because the available height for extinguishing containers is limited.
  • the side wall pivotably attached to the box below the known extinguishing container naturally has surfaces which have to be sealed separately and which can lead to leaks at high steam pressures.
  • DE-OS 29 29 385 also specifies an extinguishing container in which heated coke lies on a grate and is treated with extinguishing liquid from above. The steam formed emerges from the side of the extinguishing container at the bottom.
  • US Pat. No. 2,250,262 shows a laterally unloadable container with a saddle bottom. It is intended with the oblique bottom arrangement on two sides, on the one hand the impact and thus the breaking of bulk material, for. B. of coke, if it falls into the container from a greater height. On the other hand, the slope of the bottom should also accelerate the emptying of the container. The document does not refer to the extinguishing of coke.
  • the invention has for its object to provide a coke extinguishing device in which on the one hand the gases formed during extinguishing, for. B. steam, flow through the coke bed evenly, without there being areas with very different temperatures. These gases are also intended to be used for further use after they have passed through the coke bed can be collected and cleaned.
  • the parts of the device should be designed so that they can withstand the mechanical, thermal and chemical loads, e.g. B. sufficiently withstand the stresses mentioned under a) to f) above, even after numerous extinguishing cycles, d. H. have a long lifespan and are easy to replace in a short time if necessary.
  • the device should also allow utilization of the maximum dumping height of the coke, particularly when used on older coke oven batteries.
  • the base is designed as a deflecting base (12), that in the lower region of the coke extinguishing container (1) there are outlet openings (14) in at least two mutually opposite walls (15) and then one discharge line (3 ) are provided, over the clear cross section of which a retaining member (16) extends.
  • the device according to the invention in particular the retention elements in the discharge lines for the gases produced during the extinguishing, have a particularly long service life because at least the mechanical and thermal loads on the retention elements are significantly reduced.
  • the weight of the Köksschüte does not weigh on the restraint. This can also be arranged in such a way that it does not come into direct contact with the very hot, not yet extinguished coke.
  • the arrangement of the restraining elements in the discharge lines for the gases produced during the extinguishing means can be quickly replaced without long interruptions in operation.
  • the height of the coke bed in this container can extend further downwards and the usable volume is thus increased.
  • the lateral removal of the gases from the extinguishing container enables an additional height of about 600 mm to be obtained for the coke fill in the container. This is particularly important when using the extinguishing container in the form of a single-point container car and when picking up coke to be extinguished from furnace batteries of various, in particular older, designs. In addition to the better uses of the facility, this also results in lower construction costs for the extinguishing container.
  • a closed deflecting base is provided.
  • This base shape is particularly well adapted to the streamlines of the extinguishing medium in the coke bed and ensures a uniform cooling of the coke.
  • the deflecting base is perforated and combined with an underlying gas collecting space, which is connected via partial lines to the leads leading to gas cleaners. This ensures that the extinguishing medium flows around the coke layer lying directly on the deflecting base and is therefore cooled uniformly.
  • the retention members in the discharge lines of the extinguishing container are preferably adjustable to change the clear cross section of the discharge lines. This is favorable for the optimization of the extinguishing process, because it causes the ratio of the partial flows of the extinguishing medium through the retaining member and through the perforated base depending on z.
  • the outlet ends of the associated sub-lines are arranged within the lines in which the retaining elements are provided.
  • the outlet ends of the partial lines can be designed as injector nozzles.
  • the clear cross section of the discharge lines which have the retaining members, is reduced in the area of the injector nozzles. This increases the speed of the extinguishing medium flowing around the injector nozzles. The result is a negative pressure in the area around the injector nozzles and an increased suction of gases from these nozzles.
  • the retention members are preferably designed as grids. It is advantageous if the main surface of the grate is arranged at the beginning or inside the discharge line for the extinguishing medium perpendicular to the longitudinal direction of this discharge line. This results in the smallest possible dimensions for the grate.
  • a grate is located as a retaining element in the plane of the nearest wall of the extinguishing container.
  • This arrangement of the retaining member is relatively simple to manufacture.
  • the angle between the main surface of the grating acting as a retaining element and the longitudinal direction of the associated water vapor discharge deviates from 90 °.
  • the inclination of the grate obtained in this way in some cases means that the glowing coke does not touch the grate and thus protects its material mechanically and thermally.
  • the coke When the glowing coke is poured into the container, the coke is deflected inwards by the deflection devices, so that the grids remain unaffected by the falling coke.
  • the amount of water in the extinguishing tank can be set in different areas of the extinguishing water supply depending on the path length covered by the extinguishing water in the coke bed. For example, more extinguishing water can be applied to the surface of the coke bed in those areas from which the path of the extinguishing water through the coke bed is longer than from other areas.
  • the device according to FIG. Consists essentially of a coke extinguishing container 1, which is closed at the top with a lid 2 and is connected at the bottom via two discharge lines 3 to two gas cleaners 4.
  • the device is arranged on a chassis 5.
  • a water supply line 6 branches at its end 7 into sub-lines 8, each of which is connected to a spray nozzle 9 on the underside of the cover 2.
  • the lid 2 closes the coke extinguishing container 1 in a gas-tight manner with the aid of seals 10.
  • the container 1 filled with the coke bed 11 has a bottom in the form of a deflecting bottom 12. This extends on both sides of its apex 13 arranged in the middle of the container 1 essentially obliquely downwards in the direction of two outlet openings 14 in two opposite walls 15 of the container 1.
  • the flanks of the deflecting base 12 on both sides of the apex 13 are aerodynamically downward arched. However, the curvature is not absolutely necessary.
  • a retaining member 16 in the form of a grate is arranged in the plane of the nearest wall 15 of the container 1.
  • a relatively short horizontal section 17 of the derivation 3 connects to the outlet openings 14.
  • the continuation of the leads 3 each forms an upwardly curved section 18 which merges into a relatively long vertical section 19.
  • the discharges 3 are connected via flanges 20 and seals 21 to feed lines 22, which also run vertically, to the gas cleaners 4. These are equipped with sliders 23 for dust removal.
  • 4 derivatives 24 for the cleaned gas are provided on the gas cleaners. 1, 7 and 8, the gas cleaners 4 are shown as cyclones.
  • the device lies for its transport to the individual coke oven chambers on the chassis 5, which can be moved via wheels 25 on a track parallel to the coke oven battery.
  • FIGS. 2 to 6 further expedient configurations for the arrangement of the retaining members 16 in the form of grids are given by way of example.
  • the grate is arranged directly at the outlet opening 14 and obliquely downwards towards the center of the container 1.
  • the grate is also attached directly to the outlet opening 14, but obliquely downwards to the outside of the container 1.
  • the grate is arranged perpendicular to the longitudinal direction of the derivative 3. It is located either in the relatively short horizontal section 17 (FIG. 4), in the upwardly curved section 18 (FIG. 5) or at the beginning of the relatively long vertical section 19 (FIG. 6) of the derivative 3.
  • the grate can also be arranged at other points and in other positions in the area of the outlet opening 14.
  • the rust is z. B. from individual grate bars or from grate plates. It is preferably installed so that it can be replaced from the outside without having to get inside the container 1.
  • FIG. 7 shows a further development of the device according to FIG. 1.
  • Deflection devices 26 are additionally provided above the outlet openings 14.
  • the deflection devices 26 direct the downward flow of the extinguishing medium in the region of the walls 15 away from the outlet openings 14 and towards the center of the coke bed.
  • the flow path of the extinguishing medium in the region of the walls 15 is lengthened and the heat absorption of this medium is therefore increased.
  • the coke falling down is deflected by the deflecting device 26 from the retaining member 16, which is relatively protected against impact.
  • the device according to FIG. 1 has a deflecting base 12 which is perforated.
  • the openings 27 of the perforation connect the space in which the coke bed 11 is located in the extinguishing container 1 with a gas collecting space 28 under the deflecting floor 12.
  • the sub-lines 30 extend in a horizontal plane below the coke extinguishing container in opposite directions up to approximately the longitudinal axis of the respectively associated, relatively long vertical section 19 of the derivative 3. In the area of the longitudinal axis of this section 19, the sub-lines 30 are each at right angles upwards Inside the lead 3 introduced.
  • the sections of the partial lines 30 located within the derivatives 3 are arranged approximately coaxially with the section 19.
  • the outlet ends 31 of the partial lines 30 within the sections 19 are tapered in the form of injector nozzles.
  • the clear cross section of the leads 3 in the area of the outlet ends 31 can be reduced.
  • the device according to FIG. 1 is moved in front of the coke oven chamber to be emptied.
  • the lid 2 When the lid 2 is open, the extinguishing container 1 is filled with the glowing coke.
  • the coke bed 11 is sprayed with water via the nozzles 9.
  • the water cools the coke by removing heat, whereby water vapor and possibly other gases, e.g. B. water gas are formed.
  • the resulting gases flow downward through the coke bed 11 to the outlet openings 14 with further heat absorption.
  • the deflecting base 12 supports a favorable flow direction of the cooling gases. In the area of the outlet opening 14, the hot gases pass out of the container 1 through the retaining elements 16, by which larger coke particles are retained.
  • the gases then reach the gas cleaners 4 via the discharge lines 3, where the gases are cleaned and leave the gas cleaners 4 via the discharge lines 24 for further thermal and / or chemical use.
  • the device according to FIG. 8 When using the device according to FIG. 8, it is first moved in front of the coke oven chamber to be emptied. When the lid 2 is open, the extinguishing container 1 is filled with the glowing coke. After closing the lid 2, the coke bed 11 is sprayed with water via the nozzles 9. The water cools the coke by means of heat extraction, whereby water vapor and possibly other gases, e.g. B. water gas are formed. The resulting gases flow downward with further heat absorption through the coke bed 11.
  • gases e.g. B. water gas
  • the generation of a smaller partial flow through the perforated deflection plate 12 has the advantage that the coke layer lying directly on the deflection plate 12 is completely flowed through by the gases and cooled. As a result, the bottom layer of the coke bed is cooled just as well as its top areas.
  • the partial flow exiting via the grids results in a suction effect in the area around the outlet ends 31 of the partial lines 30.
  • This suction effect can be reinforced by a cross-sectional tapering of the derivative 3 in the area of the outlet ends 31.
  • the clear cross-section of the leads 3 can be changed with the aid of adjustable retaining members 16 during coke extinguishing.
  • the quantitative ratio of the partial flows emerging via the retaining members 16 to the partial flow running through the perforated deflecting plate 12 can be regulated, for. B. can in the initial phase of deletion partial flow leading through the deflecting base 12 is strengthened by reducing the passage area on the retaining members 16 and is weakened again in the subsequent phase in the reverse manner.
  • the partial flow can be completely interrupted via the retention members 16 during any extinguishing phase.
  • the partial lines 30 no longer function as bypass lines, but instead temporarily absorb the entire gas flow.
  • the retention members 16 can thus also act as valves.
  • they can e.g. B. be provided with lamella-like flaps, which can be changed or closed in order to throttle or interrupt the gas flow in their inclination.
  • a slide can also be provided, with which the clear cross section of the derivative 3 can be reduced as desired.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)

Claims (14)

1. Dispositif d'extinction de coke comportant un réceptacle (1) d'extinction de coke qui comprend des parois (15), un fond et un couvercle amovible (2) avec des tuyères de pulvérisation (9) à sa face inférieure, ainsi qu'une ouverture d'évacuation (14) pour les gaz produits par l'extinction, caractérisé en ce que le fond est formé à la façon d'un déflecteur (12) et en ce que sont prévues dans la zone inférieure du réceptacle (1), dans deux parois (15) situées en regard l'une de l'autre, des ouvertures d'évacuation (14) connectées chacune à une conduite d'évacuation (3) sur la section intérieure de laquelle s'étend un organe d'arrêt (16).
2. Dispositif d'extinction de coke comportant un fond incliné (12) du réceptacle (1) selon la revendication 1, caractérisé en ce que le fond déflecteur (12) est continu.
3. Dispositif d'extinction de coke comportant un fond incliné (12) du réceptacle (1) selon la revendication 1, caractérisé en ce que le fond déflecteur (12) est perforé et en ce qu'une chambre de collecte de gaz (28) disposée au-dessous de ce fond est reliée aux conduites d'évacuation (3) par des conduites de distribution (30).
4. Dispositif d'extinction de coke selon la revendication 3, caractérisé en ce que, pour permettre la modification de la section intérieure des conduites d'évacuation (3), les organes d'arrêt (16) sont réglables.
5. Dispositif d'extinction de coke selon l'une des revendications 3 ou 4, caractérisé en ce que les extrémités de sortie (31) des conduites de distribution (30) sont disposées à l'intérieur des conduites d'évacuation (3) et sont conformées en tuyères d'injection.
6. Dispositif d'extinction de coke selon la revendication 5, caractérisé en ce que la section intérieure des conduites d'évacuation (3) est réduite dans la zone des extrémités de sortie (31).
7. Dispositif d'extinction de coke selon l'une des revendications 2 à 6, caractérisé en ce que, selon une vue latérale du réceptacle (1), le fond déflecteur (12) présente sa zone la plus haute dans la zone médiane du réceptacle (1) et s'abaisse à partir de là symétriquement en direction des ouvertures d'évacuation (14).
8. Dispositif d'extinction de coke selon l'une quelconque des revendications précédentes, caractérisé en ce que les organes d'arrêt (16) sont constitués par des grilles.
9. Dispositif d'extinction de coke selon la revendication 8, caractérisé en ce que la surface principale de chaque grille s'étend perpendiculairement à la direction longitudinale de la conduite d'évacuation correspondante (3).
10. Dispositif d'extinction de coke selon la revendication 9, caractérisé en ce que chaque grille s'étend dans le plan de la paroi la plus voisine (15) du réceptacle (1).
11. Dispositif d'extinction de coke selon la revendication 8, caractérisé en ce que l'angle compris entre la surface principale de chaque grille et la direction de la conduite d'évacuation correspondante (3) diffère de 90°.
12. Dispositif d'extinction de coke selon l'une quelconque des revendications précédentes, caractérisé en ce que des dispositifs déflecteurs (26) s'étendant vers le milieu du réceptacle (1) sont prévus sur les parois (15), au-dessus des ouvertures d'évacuation (14).
13. Dispositif d'extinction de coke selon l'une quelconque des revendications précédentes, caractérisé en ce que les tuyères de pulvérisation (9) présentent des diamètres internes distincts.
14. Dispositif d'extinction de coke selon l'une quelconque des revendications précédentes, caractérisé en ce que les nombres de tuyères de pulvérisation (9) par unité de surface du couvercle (2) sont différents.
EP19820903232 1981-10-16 1982-10-15 Dispositif d'extinction du coke Expired EP0091471B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3141242 1981-10-16
DE19813141242 DE3141242C2 (de) 1981-10-16 1981-10-16 Kokslöscheinrichtung

Publications (2)

Publication Number Publication Date
EP0091471A1 EP0091471A1 (fr) 1983-10-19
EP0091471B1 true EP0091471B1 (fr) 1985-07-17

Family

ID=6144297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820903232 Expired EP0091471B1 (fr) 1981-10-16 1982-10-15 Dispositif d'extinction du coke

Country Status (4)

Country Link
EP (1) EP0091471B1 (fr)
JP (1) JPS58501727A (fr)
DE (1) DE3141242C2 (fr)
WO (1) WO1983001455A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730749A1 (de) * 1987-09-12 1989-03-30 Krupp Koppers Gmbh Verfahren und vorrichtung zum emissionsfreien loeschen von koks

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327652A1 (de) * 1983-07-30 1985-02-07 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren und vorrichtung zum nassloeschen von gluehendem koks in einem einpunktloeschwagen
US7998316B2 (en) * 2009-03-17 2011-08-16 Suncoke Technology And Development Corp. Flat push coke wet quenching apparatus and process
CN114292655B (zh) * 2021-12-27 2023-12-08 内蒙古星光煤炭集团鄂托克旗华誉煤焦化有限公司 基于碳排放的焦炭山峰式熄焦设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1365974A (en) * 1919-04-01 1921-01-18 Flood George Alexander Apparatus for quenching coke
DE873686C (de) * 1940-02-12 1953-04-16 Koppers Gmbh Heinrich Einrichtung zum Loeschen von Koks
US2250262A (en) * 1941-02-27 1941-07-22 Gar Wood Ind Inc Side discharge hopper body
US3806425A (en) * 1971-08-03 1974-04-23 Steel Corp Quenching coke with solid streams and avoiding flooding
DE2320057B1 (de) * 1973-04-19 1974-08-08 Eschweiler Bergwerks-Verein, 5122 Kohlscheid Verfahren und Vorrichtung zum Löschen eines erhitzten Schüttgutes
DE2407689B2 (de) * 1974-02-18 1976-03-25 Einrichtung zur gewinnung von beim loeschen von gluehendem koks im kokereibetrieb entstehendem dampf
US4083753A (en) * 1976-05-04 1978-04-11 Koppers Company, Inc. One-spot coke quencher car
US4213827A (en) * 1977-01-05 1980-07-22 Albert Calderon Method and apparatus for quenching coke
DE2929385A1 (de) * 1979-07-20 1981-02-12 Hartung Kuhn & Co Maschf Verfahren zum loeschen eines erhitzten schuettguts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730749A1 (de) * 1987-09-12 1989-03-30 Krupp Koppers Gmbh Verfahren und vorrichtung zum emissionsfreien loeschen von koks

Also Published As

Publication number Publication date
DE3141242A1 (de) 1983-05-11
WO1983001455A1 (fr) 1983-04-28
JPS58501727A (ja) 1983-10-13
EP0091471A1 (fr) 1983-10-19
DE3141242C2 (de) 1983-09-22

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