EP0215314A2 - Installation de refroidissement à sec du coke - Google Patents

Installation de refroidissement à sec du coke Download PDF

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Publication number
EP0215314A2
EP0215314A2 EP86111474A EP86111474A EP0215314A2 EP 0215314 A2 EP0215314 A2 EP 0215314A2 EP 86111474 A EP86111474 A EP 86111474A EP 86111474 A EP86111474 A EP 86111474A EP 0215314 A2 EP0215314 A2 EP 0215314A2
Authority
EP
European Patent Office
Prior art keywords
inert gas
coke
cylinder jacket
annular space
prechamber
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.)
Withdrawn
Application number
EP86111474A
Other languages
German (de)
English (en)
Other versions
EP0215314A3 (fr
Inventor
Karl Remmers
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.)
ThyssenKrupp Technologies AG
Original Assignee
Thyssen Industrie AG
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
Priority claimed from DE19853533079 external-priority patent/DE3533079A1/de
Application filed by Thyssen Industrie AG filed Critical Thyssen Industrie AG
Publication of EP0215314A2 publication Critical patent/EP0215314A2/fr
Publication of EP0215314A3 publication Critical patent/EP0215314A3/fr
Withdrawn legal-status Critical Current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 coke dry cooling device, consisting of an antechamber with coke feed, a cooling chamber arranged below the antechamber, which has a coke discharge and an inert gas supply in its lower region, and an inert gas outlet connected to the antechamber, in the region of the coke bed and by way of the inert gas flow from Pipes through which cooling water flows are arranged.
  • coke dry cooling so much hot coke is given to the prechamber that there is always a certain amount of coke at a uniform temperature in the prechamber.
  • the coke sinks evenly from the antechamber into the cooling chamber.
  • Inert gases which are conducted in countercurrent, cool the coke here, which are fed to a cleaning unit and then to heat exchangers via the inert gas outlet.
  • the cooled and cleaned inert gases are recycled to the cooling chamber.
  • the coke also gives off its heat to cooling water in pipes, which can be used either directly or with the interposition of a heat exchanger to generate steam.
  • cooling water-carrying pipes are arranged in the cooling chamber, in particular also above the coke bed, the radiant heat of the coke and the hot inert gases flow past.
  • the cooling tube construction is complex and therefore not very easy to maintain, its heat absorption is unsatisfactory.
  • the object of the invention is to reduce the amount of inert gas required for cooling the hot coke.
  • a vertically aligned cylinder jacket formed from pipes and delimiting the coke bed is arranged in the antechamber and forms an annular space with the wall of the antechamber as a path for the inert gas.
  • the cylinder jacket delimiting the coke bed is heated not only by radiant heat, but at least in the part that delimits the coke bed, directly by the hot coke.
  • the cylinder jacket is heated by the inert gases flowing from the cooling chamber into the prechamber, in particular on the outside of the jacket delimiting the annular space.
  • the tubes of the cylinder jacket should therefore preferably be arranged vertically and close to one another and connected to lower and upper collectors and flowed through from below by the cooling water.
  • additional pipes through which cooling water flows and which extend into the annular space can be connected to the outside of the cylinder jacket.
  • These additional tubes can also be designed as flow straighteners and, in particular, can be arranged more densely in the area of the inert gas discharge than in other areas. The distribution of the inert gas in the annular space and the flow through the annular space can thus be improved or evened out.
  • Another possibility for improving the flow in the annular space is that flow straighteners in the form of plates, chain curtains and the like are arranged in the area of the inert gas discharge.
  • the wall of the prechamber in the area of the annular space is formed by a brick lining that is at the upper end of the annular space a constriction closely surrounding the cylinder jacket passes over, that the cylinder jacket above the constriction is surrounded by insulation that extends to the coke task and the pipes of the cylinder jacket that carry cooling water are brought up to the edge of the coke task and are connected there to upper collectors.
  • the casing above the constriction does not have to be made of expensive refractory material, such as firebrick, but can be simple thermal insulation, for example insulating wool with an outer sheet metal casing.
  • Additional cooling water-carrying pipes can be arranged on the underside of the constriction of the chamber wall.
  • the cylinder jacket of the prechamber can be arranged eccentrically with respect to the cooling chamber.
  • the coke dry cooling device includes a shaft with a prechamber 1 and a cooling chamber 2 arranged underneath.
  • the prechamber 1 has a coke feed 3 at the upper end and a connecting piece 5 secured with a membrane 4 for a blow-out line (not shown).
  • a cylinder jacket 6 is arranged which hangs on supports 7 which are supported on the conical roof 8 of the pre-chamber 1.
  • the cylinder jacket 6 consists of closely arranged and vertically aligned, cool water-carrying pipes 9, which are connected at the top and bottom to assigned collectors 10 and 11, respectively.
  • the inside of the cylinder jacket 6 is lined with a wear protection 12.
  • the upper collector 10 is arranged close under the roof 8 of the prechamber 1.
  • An apron 13 bridges the remaining space between the collector and the roof 8.
  • the cylinder jacket 6 has a diameter such that an annular space 15 remains between the wall 14 of the prechamber 1 and the cylinder jacket 6. In the vertical direction downward, the cylinder jacket 6 extends beyond an inert gas exhaust 16 connected to the prechamber 1, in which chain curtains 17 are arranged in the embodiment shown. In the area of the inert gas discharge 16, an air supply 18 also opens into the annular space 15.
  • the lower part of the antechamber 1 merges into the shaft-shaped cooling chamber 2 with a constriction 19.
  • the lower part 20 of the cooling chamber 2 is conical and ends above a coke discharge 21.
  • a ring line 22 runs around the lower part 20 of the cooling chamber 2, from which gas outlets 23 opening into the cooling chamber 2 extend.
  • Each gas outlet 23 has an adjustable shut-off flap 24.
  • a further central gas outlet 26 is arranged on a support 25 bridging the lower part 20 of the cooling chamber 2, which is protected by a hood 27 and which is fed in a manner not shown from the ring line 22, this central gas outlet 26 also being provided a butterfly valve is assigned. All butterfly valves can be controlled independently of one another.
  • the coke drying cooling device shown works as follows: The hot coke added via the coke feed 3 forms a touching coke bed in the area of the cylinder jacket 6, so that the coke directly transfers a part of its sensible heat to the cylinder jacket 6 or to the pipe 9 from below can deliver cooling water led above.
  • an inert gas is fed to the ring line 22 via an inert gas feed 28, which flows through the coke located in the cooling chamber 2 and reaches the annular space 15 of the prechamber 1 in the heated state.
  • the hot inert gas releases part of its sensible heat via the outside of the cylinder jacket 6 to the cooling water guided in the tubes 9.
  • the inert gas then flows through the inert gas outlet 16. It is then cleaned and passed through heat exchangers (FIG. 4). The cleaned and cooled gas is recirculated via the inert gas feed 28.
  • the inert gas also absorbs combustible gases from the cooling coke on its way through the cooling chamber, air is supplied to the inert gas shortly before leaving the annular space 15 via the air supply 18, so that the combustible components burn and the temperature of the inert gas flow increases.
  • shut-off flaps 24 of the gas outlets 23 in the lower part 20 of the cooling chamber 2 are set in such a way that the cooling chamber 2 is flowed through evenly over the entire cross section by the cooling inert gas and accordingly, the inert gas enters the annular space 15 in a uniform distribution.
  • the chain curtains 17 in the inert gas discharge 16 also serve to even out the inert gas flow because they act as a bluff body, which prevent partial flows of the inert gas from leaving the annular space 15 in a short way.
  • the same reference numerals designate the same parts.
  • Additional pipes 29, through which cooling water flows, are connected to the cylinder jacket 6 and the collectors 10, 11 and extend into the annular space 15.
  • the cooling water guided in the tubes 29 is heated by the inert gas.
  • the tubes 29 also serve to even out the flow in the annular space 15. For this purpose, they are arranged differently distributed over the circumference of the cylinder jacket 6. In the area of the inert gas discharge 16 in particular, the tubes 29 are arranged more densely than in other areas. This is not shown in detail in the drawing.
  • the wall 14 of the prechamber 1 like the wall of the cooling chamber 2, has a heavy-duty lining, in particular made of wear stones and firebricks.
  • the wall 14 of the prechamber 1 is essentially cylindrical, it practically extends only just beyond the inert gas discharge 16. There it merges into a constriction 30 which closely surrounds the jacket 6.
  • the jacket 6 is also supported on the constriction 30.
  • the portion of the jacket 6 which extends upward beyond the constriction 30 is made of a thermal insulation 31 made of insulating materials, e.g. Wool, surrounded by an outer sheet metal jacket. The insulation 31 extends until the coke feed.
  • the tubes 9 of the jacket 6 are laid on the inside of the insulation, the tubes 9 at the upper end of the jacket 6 being brought together in a roof-like manner with assigned sections 32.
  • the ends of the sections 32 open into the upper collector 10, which is arranged immediately below the coke feed 3 and practically surrounds it. In this upper area, a coke fill cone is formed, which emits radiant heat to pipes 9, in particular 32, which are spaced apart.
  • Pipes 33 through which cooling water flows are also laid on the lower side of the constriction 30 of the prechamber 1. These absorb the radiant heat from that which forms under the jacket 6 free coke cone. The heat absorption of these tubes 33 is improved if, as in the embodiment shown, the lower end of the jacket 6 is tapered, because then the radiating surface of the cone of hot coke is enlarged.
  • a wear protection which, in the embodiment shown, consists of plates 36 with a Z-profile placed one above the other and side by side.
  • the plates are arranged in such a way that their Z-webs 37 form drainage slopes for the coke in the prechamber 1 arranged one above the other in steps.
  • FIG 4 the entire inert gas system is shown schematically and simplified for clarification.
  • the coke dry cooling device according to the invention consisting of antechamber 1 and cooling chamber 2 arranged below, is connected via the inert gas outlet 16 to the boiler 38, in which the hot inert gas is recooled and the thermal energy obtained is available for steam generation. From there, the inert gas reaches a separator 39 and is recirculated via the blower 40 and the line 41 into the ring line 22 of the cooling chamber 2.
  • the heat is decoupled into the cooling water and the inert gas flow in the area of the high temperature of the coke (on average at about 1000 ° C.) and a high proportion of the decoupled heat is dissipated via cooling water. Accordingly, the amount of inert gas and thus the part of the inert gas system is to be made about 25-30% smaller than in comparable systems. As a result, both the investment costs and the operating costs are considerably reduced. In general, a lower temperature of the coke is also achieved at the coke outlet 21.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
EP86111474A 1985-09-17 1986-08-19 Installation de refroidissement à sec du coke Withdrawn EP0215314A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19853533079 DE3533079A1 (de) 1985-09-17 1985-09-17 Kokstrockenkuehleinrichtung
DE3533079 1985-09-17
DE3535977 1985-10-09
DE19853535977 DE3535977A1 (de) 1985-09-17 1985-10-09 Kokstrockenkuehleinrichtung

Publications (2)

Publication Number Publication Date
EP0215314A2 true EP0215314A2 (fr) 1987-03-25
EP0215314A3 EP0215314A3 (fr) 1987-12-02

Family

ID=25836042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86111474A Withdrawn EP0215314A3 (fr) 1985-09-17 1986-08-19 Installation de refroidissement à sec du coke

Country Status (5)

Country Link
EP (1) EP0215314A3 (fr)
KR (1) KR870003181A (fr)
CN (1) CN86106332A (fr)
BR (1) BR8604411A (fr)
DE (1) DE3535977A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241688A3 (en) * 1986-04-17 1987-11-25 Thyssen Industrie Ag Coke dry-cooling plant
DE19838686C2 (de) * 1998-08-26 2003-07-31 Rag Ag Vorrichtung und Verfahren zur gleichmäßigen Dampferzeugung auf hohem Niveau in Kokstrockenkühlanlagen

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101186831B (zh) * 2007-12-17 2011-04-06 中冶焦耐工程技术有限公司 一种干熄炉专用供气装置
CN110951504B (zh) * 2018-09-27 2020-10-27 新能能源有限公司 加氢气化半焦的冷却及收集方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE492943C (de) * 1925-05-13 1930-03-04 Carbo Union Ind Mij Nv Kokskuehlanlage
FR2420564A1 (fr) * 1978-03-20 1979-10-19 Kawatetsu Chem Ind Co Procede pour recuperer le gaz superflu dans l'extinction a sec du coke et appareil utilisable pour la mise en oeuvre de ce procede
DE3130582A1 (de) * 1981-08-01 1983-02-17 Thyssen Industrie Ag, 4300 Essen Verfahren und vorrichtung zur kuehlung von heissem schuettgut
DE3309695C2 (de) * 1982-07-29 1986-11-06 Dr. C. Otto & Co Gmbh, 4630 Bochum Schachtkühler zum Trockenlöschen von Koks
DE3235261C2 (de) * 1982-09-23 1984-08-02 Hartung, Kuhn & Co Maschinenfabrik GmbH, 4000 Düsseldorf Verfahren und Einrichtung zur Nutzung der Abwärme und zur Gewinnung von Wassergas beim Kühlen von Koks
DE3332702A1 (de) * 1983-09-10 1985-03-28 Carl Still Gmbh & Co Kg, 4350 Recklinghausen Verfahren zur trockenkuehlung von gluehendem koks und geeignete kokstrockenkuehleinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241688A3 (en) * 1986-04-17 1987-11-25 Thyssen Industrie Ag Coke dry-cooling plant
DE19838686C2 (de) * 1998-08-26 2003-07-31 Rag Ag Vorrichtung und Verfahren zur gleichmäßigen Dampferzeugung auf hohem Niveau in Kokstrockenkühlanlagen

Also Published As

Publication number Publication date
BR8604411A (pt) 1987-05-12
KR870003181A (ko) 1987-04-15
EP0215314A3 (fr) 1987-12-02
CN86106332A (zh) 1987-03-18
DE3535977A1 (de) 1987-04-09

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Inventor name: REMMERS, KARL