EP0033093A2 - Procédé de refroidissement à sec du coke - Google Patents

Procédé de refroidissement à sec du coke Download PDF

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Publication number
EP0033093A2
EP0033093A2 EP81100244A EP81100244A EP0033093A2 EP 0033093 A2 EP0033093 A2 EP 0033093A2 EP 81100244 A EP81100244 A EP 81100244A EP 81100244 A EP81100244 A EP 81100244A EP 0033093 A2 EP0033093 A2 EP 0033093A2
Authority
EP
European Patent Office
Prior art keywords
cooling medium
chamber
temperature
bulk material
partial flow
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.)
Granted
Application number
EP81100244A
Other languages
German (de)
English (en)
Other versions
EP0033093A3 (en
EP0033093B1 (fr
Inventor
Friedrich Dr. Jokisch
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers 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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Priority to AT81100244T priority Critical patent/ATE7040T1/de
Publication of EP0033093A2 publication Critical patent/EP0033093A2/fr
Publication of EP0033093A3 publication Critical patent/EP0033093A3/de
Application granted granted Critical
Publication of EP0033093B1 publication Critical patent/EP0033093B1/fr
Expired 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 method for cooling gas-permeable bulk material with a temperature-dependent coefficient of thermal conductivity and a shaft-shaped chamber in which the bulk material applied from above is treated in countercurrent with a gaseous cooling medium rising from the bottom, the cooling medium being used in two partial flows.
  • the method used to achieve this object is characterized in that the first partial flow of the cooling medium is introduced into the lower part of the chamber in a manner known per se, while the second partial flow is fed into a region of the chamber in which the bulk material to be cooled is at least has a temperature ( ⁇ G ) above which the thermal conductivity ( ⁇ ) of the bulk material rises sharply depending on the temperature.
  • the invention is based on the knowledge that for certain solids, which include coke, the thermal conductivity ( ⁇ ) is strongly temperature-dependent.
  • the illustration in Fig. 1 therefore shows a coordinate system in which the temperature ( ⁇ ) and the ordinate the thermal conductivity ( ⁇ ) have been plotted on the abscissa.
  • the typical curve profile shown in this coordinate system clearly shows that in such cases the coefficient of thermal conductivity (A) initially does not increase or increases very slowly with increasing temperature. Only when a certain limit temperature ( ⁇ G ), which of course depends on the substance, is reached or exceeded, does the heat conductivity increase relatively steeply.
  • the time course of the convective total heat transport between the solid and the gaseous cooling medium is determined by the thermal conductivity in the solid itself and the heat transfer resistance between the solid and the gaseous cooling medium.
  • the thermal resistance and thus materially because S the indicates the characteristic thickness of the solid body in question and its coefficient of thermal conductivity.
  • the thermal resistance can therefore only be influenced by the geometric shape of the solid body.
  • the heat transfer resistance is included defined, whereby the heat exchange between the gaseous cooling medium and the surfaces of the solid is described by the heat transfer coefficient ⁇ .
  • the heat transfer coefficient is dependent on the flow around the solid body, that is to say on its geometric shape and the flow rate of the gaseous cooling medium.
  • This measure can also be supported by the fact that in the area of the feed point of the second partial flow of the cooling medium, the flow velocity of the media is increased by a corresponding narrowing of the flow channel, which additionally reduces the heat transfer resistance ( ) results.
  • this can be brought about by either having a corresponding taper in the upper part of the shaft-shaped chamber, or by installing appropriate internals in the upper part of the chamber.
  • the second partial stream of the gaseous cooling medium should According to the invention, be placed in a region of the chamber in which the coke to be cooled has a temperature of approximately 400 to 600 ° C.
  • the red-hot coke is fed into the shaft-shaped chamber 6 from above into the shaft-shaped chamber 6 at a temperature of approx. 1 100 ° C. in an amount of approx. 80 t / h and initially reaches the uppermost part above the line 3, which is also known as Antechamber 13 is called.
  • the pre-chamber 13 the fluctuations that may occur during the supply of the glowing coke are to be compensated for, so that quasi-stationary conditions can develop in the areas of the chamber 6 underneath.
  • the entire chamber 6 is provided with a suitable refractory lining and has a taper in its upper region II, through which the flow velocities of the media in this region are correspondingly increased compared to the lower region 1.
  • the filled coke forms the fixed bed 7 in the chamber 6, which is shown hatched in the figure.
  • the temperature inside the fixed bed decreases steadily from top to bottom, so that the cooled coke can be drawn off at a temperature of approx.
  • the gaseous cooling medium is introduced into the chamber 6 in two partial flows, the first partial flow entering the lower part of the chamber 6 via the line 1.
  • the second partial flow in an amount of about 30-35% by volume of the total amount is introduced into the chamber 6 via the line 2 in a region in which the fixed bed 7 has a temperature of approximately 500 ° C.
  • ⁇ G limiting temperature
  • ⁇ de 'r thermal conductivity
  • the thermal conductivity in the fixed bed 7 is smaller than the heat transfer resistance, while below the feed point the conditions are exactly the opposite.
  • the heated gaseous cooling medium is withdrawn via the line 3 from the upper part of the chamber 6 and reaches the waste heat boiler 4, in which the necessary cooling takes place with heat recovery.
  • the cooled gaseous cooling medium can then be recirculated to line 1 via line 9 and blower 10.
  • Line 2 branches off from this.
  • the control flaps 11 and 12 are used for the necessary adjustment of the two partial flows. Instead of the butterfly valves 11 and 12, fans can also be used to regulate the two partial flows.
  • Inert gas preferably flue gas, is used as the gaseous cooling medium.
  • the tapering of the chamber 6, through which the flow velocities in the upper part thereof are to be increased, begins in the region of the entry point of the line 2 into the chamber 6. This is of course a pure one Contingent measure that is not always necessary.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Coke Industry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
EP81100244A 1980-01-29 1981-01-15 Procédé de refroidissement à sec du coke Expired EP0033093B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81100244T ATE7040T1 (de) 1980-01-29 1981-01-15 Verfahren zur trockenen kokskuehlung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3002990A DE3002990C2 (de) 1980-01-29 1980-01-29 Verfahren zur trockenen Kokskühlung
DE3002990 1980-01-29

Publications (3)

Publication Number Publication Date
EP0033093A2 true EP0033093A2 (fr) 1981-08-05
EP0033093A3 EP0033093A3 (en) 1981-12-09
EP0033093B1 EP0033093B1 (fr) 1984-04-11

Family

ID=6093112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100244A Expired EP0033093B1 (fr) 1980-01-29 1981-01-15 Procédé de refroidissement à sec du coke

Country Status (12)

Country Link
US (1) US4486269A (fr)
EP (1) EP0033093B1 (fr)
JP (1) JPS56110782A (fr)
AR (1) AR224558A1 (fr)
AT (1) ATE7040T1 (fr)
AU (1) AU535338B2 (fr)
BR (1) BR8100423A (fr)
CA (1) CA1144510A (fr)
DE (1) DE3002990C2 (fr)
ES (1) ES497214A0 (fr)
MX (1) MX155642A (fr)
ZA (1) ZA806605B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127429A (en) * 1982-09-23 1984-04-11 Hartung Kuhn & Co Maschf A method of and an apparatus for cooling coke
US4578387A (en) * 1984-03-05 1986-03-25 Eli Lilly And Company Inotropic agents

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4663359B2 (ja) * 2005-03-17 2011-04-06 新日鉄エンジニアリング株式会社 コークス乾式消火設備のガス吹込み装置およびその操業方法
KR100820183B1 (ko) * 2007-07-19 2008-04-08 (주)성진씨앤씨 씨디큐용 편류 방지판

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105192A (de) * 1922-12-18 1924-06-02 Sulzer Ag Behälter zum Trockenkühlen von Koks.
FR698891A (fr) * 1930-07-12 1931-02-06 Silica En Ovenbouw Mij Nv Procédé de refroidissement de coke incandescent
DE2432025C3 (de) * 1974-07-03 1980-11-13 Gosudarstwennyj Wsesojusnyj Institut Po Projektirowaniju Predprijatij Koksochimitscheskoj Promyschlennosti, Charkow (Sowjetunion) Vorrichtung zum Trockenlöschen von Koks und anderen stückigen Brennstoffen
JPS5114901A (en) * 1974-07-30 1976-02-05 Gosudarusutoennui Vi Ho Puroek Kookusu oyobisono tano kanetsuseikaijozairyono kanshikikyureisochi
SU802354A1 (ru) * 1977-03-01 1981-02-07 Украинский Научно-Исследовательскийуглехимический Институт Способ сухого тушени кокса и получени гАзОВ, СОдЕРжАщиХ ВОдОРОд и ОКиСьуглЕРОдА, и уСТРОйСТВО дл ЕгООСущЕСТВлЕНи

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127429A (en) * 1982-09-23 1984-04-11 Hartung Kuhn & Co Maschf A method of and an apparatus for cooling coke
US4578387A (en) * 1984-03-05 1986-03-25 Eli Lilly And Company Inotropic agents

Also Published As

Publication number Publication date
EP0033093A3 (en) 1981-12-09
AU6529480A (en) 1981-08-06
US4486269A (en) 1984-12-04
ZA806605B (en) 1981-11-25
DE3002990C2 (de) 1984-11-08
JPS56110782A (en) 1981-09-02
AU535338B2 (en) 1984-03-15
EP0033093B1 (fr) 1984-04-11
JPH0148307B2 (fr) 1989-10-18
CA1144510A (fr) 1983-04-12
MX155642A (es) 1988-04-11
DE3002990A1 (de) 1981-07-30
BR8100423A (pt) 1981-08-11
ES8107385A1 (es) 1981-10-16
AR224558A1 (es) 1981-12-15
ATE7040T1 (de) 1984-04-15
ES497214A0 (es) 1981-10-16

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