EP0212611B1 - Chambre de refroidissement à sec de coke - Google Patents

Chambre de refroidissement à sec de coke Download PDF

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Publication number
EP0212611B1
EP0212611B1 EP86111408A EP86111408A EP0212611B1 EP 0212611 B1 EP0212611 B1 EP 0212611B1 EP 86111408 A EP86111408 A EP 86111408A EP 86111408 A EP86111408 A EP 86111408A EP 0212611 B1 EP0212611 B1 EP 0212611B1
Authority
EP
European Patent Office
Prior art keywords
walls
cooling
quenching chamber
coke
dry 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 - Lifetime
Application number
EP86111408A
Other languages
German (de)
English (en)
Other versions
EP0212611A2 (fr
EP0212611A3 (en
Inventor
Kurt Dr. Lorenz
Horst Dungs
Manfred Rudel
Klaus-Dieter Kemper
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.)
Still Otto GmbH
Original Assignee
Still Otto 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
Application filed by Still Otto GmbH filed Critical Still Otto GmbH
Priority to AT86111408T priority Critical patent/ATE57952T1/de
Publication of EP0212611A2 publication Critical patent/EP0212611A2/fr
Publication of EP0212611A3 publication Critical patent/EP0212611A3/de
Application granted granted Critical
Publication of EP0212611B1 publication Critical patent/EP0212611B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C10B39/02—Dry cooling outside the oven

Definitions

  • the invention relates to a dry coke cooling chamber with vertical outer walls designed as cooling walls and parallel vertical cooling walls arranged in the cooling chamber and supporting walls running transversely thereto.
  • a device for dry coke cooling is also known from EP-A-0 071 804, wherein part of its heat content is extracted from the coke and the heated cooling gas via water evaporation surfaces touched by part of the bulk material delimitation surface, and the heated cooling gas removes a further part of its heat content from additional ones releases bulk-free exchange surfaces for water evaporation before it is sent to the recooling system.
  • the cooling gas removes a further part of its heat content from additional ones releases bulk-free exchange surfaces for water evaporation before it is sent to the recooling system.
  • In the upper area of the cooling chamber there are bulk-free compartments with cage-like rows of cooling pipes through which the cooling gas comes from the bulk material into the sub-compartments.
  • the individual cooling tubes are subject to high wear and tear and strong mechanical stress.
  • the object of the invention is to propose a construction in which wear on the pipes is completely avoided without a substantial loss of thermal conductivity and, even after years of operation, it is not necessary to replace the pipes.
  • the invention provides that the cooling walls and the supporting walls consist of closed and continuous wall surfaces and that the cooling walls and / or supporting walls become narrower towards the bottom and the approximately rectangular coke cooling shafts formed by the cooling and supporting walls face downward expand towards.
  • This conical design of the cooling or supporting walls in the cooling chamber considerably reduces the lateral pressure on the walls and when the hot coke pieces slide past these walls, the abrasion is also significantly reduced.
  • the wear rate in the previous version is approximately 0.4 mm / year, it can be reduced to approximately half as a result of a taper as specified in claim 3. It is particularly advantageous if the expansion of the coke cooling shafts takes place steplessly downwards, so that as far as possible no irregularities occur during the movement of the coke along the walls and therefore there are no places with excessive wear.
  • the invention further provides that flat, exchangeable wear plates are arranged on the outside of the membrane tube walls and the space between the wear plates and the tubes or webs is filled with highly thermally conductive material and that the wear plates and / or the layer of highly thermally conductive material in the cooling chamber get thinner at the bottom.
  • the cooling walls in the cooling chamber are arranged vertically and completely flat, so that the hot coke can slide down the walls without any significant abrasion.
  • the wear plates made of metallic materials anyway have a high thermal conductivity and the space between the wear plates and the tubes, in particular in the area of the webs between the individual tubes, is e.g. B.
  • graphite or diabon or thermally conductive concrete is proposed as the highly thermally conductive material.
  • the thermal conductivity is sometimes over 100 watts / m and Kelvin.
  • compacted or pressed and / or coke breeze or dust and / or graphite dust provided with binder can also be used.
  • the latter materials have the advantage that they are partly products of the coking plant and are therefore inexpensive. These materials can be pressed into place in the remaining gaps after assembly of the pipes and wear plates or used as prefabricated elements.
  • the wear plates on both sides of the membrane tube walls are advantageously connected to one another by means of screws and / or tie rods and are held in front of the tubes. If necessary, individual wear plates can also be replaced.
  • the wear plates are arranged completely separate from the cooling pipes, they can be given a certain conicity in the flow direction of the hot coke. This can be achieved in that the wear plate distance in the upper area of the membrane tube walls is larger than in the lower area.
  • the use of the wear plates in connection with the highly thermally conductive intermediate layer also has the economic advantage that the pressure-carrying piping system no longer takes into account the possible wear must be interpreted. This version therefore no longer requires pipes of considerable wall thickness. In addition, there is no high proportion of welds with a large cross-section.
  • both the support walls (3) and the cooling walls (5) have a rounded wear layer on their top.
  • the upper edge can also be an approximately flat surface (14) on which coke pieces are deposited as a certain wear protection layer.
  • the lateral vertical wear plates (10) protrude upwards with the wear edge (15).
  • FIGS. 3 to 5 show the known arrangement of support and cooling walls (3) and (5) in the cooling chamber.
  • the wear plates (10) are arranged on the sides of the cooling walls (5) in contact with the coke and are held in front of the pipes or the highly thermally conductive material (11) by means of fastening elements (13) guided through the webs (12).
  • the layer of highly thermally conductive material arranged between the tubes and the wear plates can have different thicknesses, ie. H. the thickness decreases from top to bottom.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Claims (7)

1. Chambre de refroidissement à sec de coke avec des parois extérieures verticales servant de parois de refroidissement et des parois de refroidissement verticales parallèles aménagées dans la chambre de refroidissement et des parois d'appui transversales à celles-ci, caractérisée par le fait que les parois de refroidissement (2), (5) et les parois d'appui (3) sont constituées par des surfaces murales fermées et continues et que les parois de refroidissement (2), (5) et/ou les parois d'appui (3) sont plus étroites en allant vers le bas et que les cuves de refroidissement du coke (6) pratiquement rectangulaires constituées par les parois de refroidissement et les parois d'appui s'élargissent en allant vers le bas.
2. Chambre de refroidissement à sec de coke selon revendication 1 caractérisée par le fait que l'élargissement des cuves de refroidissement (6) du coke s'effectue de façon continue.
3. Chambre de refroidissement à sec de coke selon revendication 1 ou 2, caractérisée par le fait que les cuves de refroidissement du coke (6) s'élargissent vers le bas avec une conicité d'environ 0,1 à 5% et de préférence de 0,5 à 1,5%.
4. Chambre de refroidissement à sec de coke selon l'une des revendications ci-dessus avec des parois de refroidissement aquifères aménagées selon un système de construction tube- traverse-tube dans la chambre de refroidissement sous forme de plaques tubulaires à membrane caractérisée par le fait que des plaques d'usure (10) planes et de préférence parallèles sont installées à l'extérieur aux plaques tubulaires à membrane et que l'espace intermédiaire entre les plaques d'usure (10) et les tubes (8) ou les traverses (12) est comblé d'un matériau de haute conductibilité thermique (11) et que les plaques d'usure (10) et/ou la couche de matériau de haute conductibilité thermique (11) das la chambre de refroidissement s'amincit vers le bas.
5. Chambre de refroidissement à sec de coke selon revendication 4 caractérisée par le fait que le matériau de haute conductibilité thermique (11) est constitué de graphite, de diabon ou de béton conductible de chaleur.
6. Chambre de refroidissement à sec de coke selon revendication 4 ou 5 caractérisée par le fait que le matériau de haute conductibilité (11) est constitué de préférence d'éléments préfabriqués en poussière ou menu de coke comprimé ou de poussière de graphite pressée et/ou pourvue d'un agglomérant.
7. Chambre de refroidissement à sec de coke selon revendication 4 caractérisée par le fait que les plaques d'usure (10) sont reliées les unes aux autres aux deux côtés des plaques tubulaire à membrane (5) par des vis (13) et/ou des tirants d'ancrage et tenues devant les tubes (8).
EP86111408A 1985-08-30 1986-08-18 Chambre de refroidissement à sec de coke Expired - Lifetime EP0212611B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86111408T ATE57952T1 (de) 1985-08-30 1986-08-18 Kokstrockenkuehlkammer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3530984 1985-08-30
DE3530984A DE3530984C1 (de) 1985-08-30 1985-08-30 Kokstrockenkuehlkammer

Publications (3)

Publication Number Publication Date
EP0212611A2 EP0212611A2 (fr) 1987-03-04
EP0212611A3 EP0212611A3 (en) 1987-12-02
EP0212611B1 true EP0212611B1 (fr) 1990-10-31

Family

ID=6279735

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111408A Expired - Lifetime EP0212611B1 (fr) 1985-08-30 1986-08-18 Chambre de refroidissement à sec de coke

Country Status (4)

Country Link
US (1) US4832795A (fr)
EP (1) EP0212611B1 (fr)
AT (1) ATE57952T1 (fr)
DE (1) DE3530984C1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094292A (en) * 1991-06-10 1992-03-10 Buckshaw Dennis J Tube shield
US5795445A (en) * 1996-07-10 1998-08-18 Citgo Petroleum Corporation Method of controlling the quench of coke in a coke drum
US5827403A (en) * 1996-07-10 1998-10-27 Citgo Petroleum Corporation Method of designing and manufacturing a delayed coker drum
US6039844A (en) * 1998-10-09 2000-03-21 Citgo Petroleum Corporation Containment system for coke drums

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921878A (en) * 1906-08-28 1909-05-18 Power Specialty Company Of New York Steam-superheater.
DE1091080B (de) * 1954-10-23 1960-10-20 Steinmueller Gmbh L & C Einrichtung zur trockenen Kokskuehlung
AT258315B (de) * 1965-02-01 1967-11-27 Chamotte Ind Mit Siederohren durchzogene Feuerraumwand
US4188915A (en) * 1975-12-05 1980-02-19 Dr. C. Otto & Comp. G.M.B.H. Water-cooled, high-temperature gasifier
DE3013722C2 (de) * 1980-04-10 1984-07-05 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Vorrichtung zur Trockenkühlung von glühendem Koks
DE3130582A1 (de) * 1981-08-01 1983-02-17 Thyssen Industrie Ag, 4300 Essen Verfahren und vorrichtung zur kuehlung von heissem schuettgut
DE3338804A1 (de) * 1983-10-26 1985-05-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Waermeuebertragungsrohre

Also Published As

Publication number Publication date
ATE57952T1 (de) 1990-11-15
EP0212611A2 (fr) 1987-03-04
DE3530984C1 (de) 1986-07-10
EP0212611A3 (en) 1987-12-02
US4832795A (en) 1989-05-23

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