EP0227928A2 - Chaudière de récupération pour gaz chargés de poussières - Google Patents

Chaudière de récupération pour gaz chargés de poussières Download PDF

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Publication number
EP0227928A2
EP0227928A2 EP86115669A EP86115669A EP0227928A2 EP 0227928 A2 EP0227928 A2 EP 0227928A2 EP 86115669 A EP86115669 A EP 86115669A EP 86115669 A EP86115669 A EP 86115669A EP 0227928 A2 EP0227928 A2 EP 0227928A2
Authority
EP
European Patent Office
Prior art keywords
waste heat
gas
boiler
train
dust
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Withdrawn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
EP86115669A
Other languages
German (de)
English (en)
Other versions
EP0227928A3 (fr
Inventor
Horst Mohrenstecher
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.)
Hitachi Zosen Inova Steinmueller GmbH
Original Assignee
L&C Steinmueller 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 L&C Steinmueller GmbH filed Critical L&C Steinmueller GmbH
Publication of EP0227928A2 publication Critical patent/EP0227928A2/fr
Publication of EP0227928A3 publication Critical patent/EP0227928A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1869—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861
    • F22B1/1876—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861 the hot gas being loaded with particles, e.g. dust

Definitions

  • the invention relates to a waste heat boiler for the recovery of waste heat from a dust-laden hot gas, in particular recycle gas from a coke dryer cooler, with at least one boiler flue from which flow flows from the side via at least one horizontally extending connection channel and through which the deflected gas flows downwards, and from which Gas flow through heating surfaces.
  • an acceleration lug for the hot gas flowing into the boiler train is arranged in the transition region between the connecting duct and the boiler train is provided on the rear wall of the tank train facing away from the connecting channel, an open top dust cover channel which extends essentially over the entire rear wall, and that the cross section of the tank train not occupied by the dust removal channel is covered by a flow equalization device.
  • the acceleration lug increases the gas velocity and thus accelerates the dust particles contained in the gas stream. A substantial part of the accelerated dust particles is introduced into the dust separation channel which is open at its upper end and is thus removed from the gas flowing around the heating surfaces.
  • the flow equalization device is provided.
  • the dust separation channel is connected at its lower end at least on the gas side to the gas flow emerging from the boiler train.
  • the expression "at least on the gas side” means that the gas introduced into the dust separation channel can also be supplied to a dust separation located outside the boiler train and only the dust-free gas can be discharged through the Heating surfaces guided gas flow is supplied.
  • a particularly simple and effective construction of the flow equalization device is achieved if it is designed like a grid.
  • the boiler train has a wall bore, a cooled grid can be easily achieved if it is constructed from pipe sections of the wall bore which are guided horizontally and in at least two layers one above the other.
  • the partial gas flow through the dust separation channel can be adjusted. This can be achieved in a simple manner in that at least one adjustable slide or a corresponding flap is assigned to the lower end of the dust separation channel.
  • the descending boiler train is followed by an ascending boiler train.
  • the partial gas flow is fed into the area of the connection of the two boiler trains, each provided with an ash funnel.
  • a particularly advantageous embodiment of the waste heat boiler is achieved if not only the rear wall of the boiler train assigned to the dust separation channel is constructed as a tube wall, but also the wall separating the dust separation channel from the main gas flow cross section of the boiler train. In this case, the gas flowing through the dust separation channel and the dust contained in it are cooled to a substantial extent.
  • hot gas G loaded with coke dust is fed via a horizontally extending connecting duct 1 to a waste heat boiler 2, which is constructed from a descending train 3 and an ascending train 4.
  • the two cables 3 and 4 are each provided with ash funnels 3a and 4a at their lower ends and connected by means of a connecting section 5.
  • the connection channel 1 and the upper section 3a of the descending train are provided with a lining 6.
  • the first one Train equipped with several pressure flaps 7.
  • an acceleration nose 1a is provided on the wall below, which narrows the inlet cross section of the gas G and thus accelerates the gas flow G.
  • a section 3b following section 3a has a wall bore 8 which, in the case of a rectangular boiler cross section, consists of two opposite outer wall sections 8a and 8b and two opposite small wall sections 8c and 8d.
  • a further tube wall 9 is arranged at a distance from the wall section 8a, so that a dust separation channel 10 open at the top is delimited between the wall sections 8a and 9 and parts of the small wall sections 8c and 8d.
  • a plurality of heating surfaces 11, 12 and 13 are arranged in the free space spanned between the wall sections 8b, 8c and 8d and the tube wall 9.
  • the wall bore 8 and the heating surfaces 11, 12 and 13 are connected to distributors or collectors 14 in a manner known per se.
  • a part of the tubes of the tube wall 9 is bent horizontally at its upper end and brought together with the tubes of the tube wall 8b, so that a first horizontal position 15 of tube sections results.
  • the layers 15 and 16 lying one above the other build up a lattice-like flow equalization device which ensures an equalization of the gas flow flowing into the touch heating surfaces 11.
  • the dust separating channel 10 is connected via a connecting channel 17 to an adjusting slide device 18, in which an adjusting slide 19 is arranged so that the partial flow flowing through the dust separating channel 10 can be varied.
  • an adaptation to different load conditions and an adaptation to the different flow resistances in the main cross-section of the boiler train and in the dust separation channel 10 is possible.
  • the partial flow is introduced into the connecting section 5.
  • the gas leaving the adjusting device 18 and not dedusted gas is introduced via one or more channels extending into the area of the funnel 3a, so that the dust directly into the funnel 3a submit and is not entered via the connecting channel 5 in the second train.
  • the second train 4 is also provided in the usual way with heating surfaces 21.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coke Industry (AREA)
EP86115669A 1985-12-04 1986-11-12 Chaudière de récupération pour gaz chargés de poussières Withdrawn EP0227928A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3542803A DE3542803C1 (fr) 1985-12-04 1985-12-04
DE3542803 1985-12-04

Publications (2)

Publication Number Publication Date
EP0227928A2 true EP0227928A2 (fr) 1987-07-08
EP0227928A3 EP0227928A3 (fr) 1988-03-02

Family

ID=6287551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115669A Withdrawn EP0227928A3 (fr) 1985-12-04 1986-11-12 Chaudière de récupération pour gaz chargés de poussières

Country Status (3)

Country Link
EP (1) EP0227928A3 (fr)
DE (1) DE3542803C1 (fr)
ZA (1) ZA869136B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966944A (zh) * 2012-12-11 2013-03-13 中国东方电气集团有限公司 一种减轻高碱性煤种沾污的cfb-回转式辐射锅炉
EP2857746A1 (fr) * 2013-10-03 2015-04-08 Babcock & Wilcox Power Generation Group, Inc. Générateur de vapeur ultra supercritique avancée
CN105423276A (zh) * 2015-12-22 2016-03-23 绵阳市鑫科源环保科技有限公司 一种高温含尘烟气余热回收器
IT201900022395A1 (it) * 2019-11-28 2021-05-28 Ac Boilers S P A Caldaia a recupero e impianto comprendente detta caldaia a recupero

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101334156B (zh) * 2008-07-22 2011-09-28 马龙根 红焦余热锅炉
ITUB20160984A1 (it) * 2016-02-25 2017-08-25 Turboden Srl Scambiatore di calore diretto per impianti a ciclo rankine organico

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908632A (en) * 1953-10-07 1959-10-13 Babcock & Wilcox Co Supercritical pressure steam heating process
DE1085890B (de) * 1954-08-09 1960-07-28 Mont Kessel Herpen & Co Komm G Aus Rohrtafeln bestehende Beruehrungsheizflaeche fuer Abhitze-Wasserrohrkessel
US3237677A (en) * 1964-03-23 1966-03-01 Alcorn Comb Co Heater and process suitable for lean gaseous fuels
US3396781A (en) * 1965-12-08 1968-08-13 Humphreys & Glasgow Ltd Process and apparatus for the recovery of waste heat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908632A (en) * 1953-10-07 1959-10-13 Babcock & Wilcox Co Supercritical pressure steam heating process
DE1085890B (de) * 1954-08-09 1960-07-28 Mont Kessel Herpen & Co Komm G Aus Rohrtafeln bestehende Beruehrungsheizflaeche fuer Abhitze-Wasserrohrkessel
US3237677A (en) * 1964-03-23 1966-03-01 Alcorn Comb Co Heater and process suitable for lean gaseous fuels
US3396781A (en) * 1965-12-08 1968-08-13 Humphreys & Glasgow Ltd Process and apparatus for the recovery of waste heat

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102966944A (zh) * 2012-12-11 2013-03-13 中国东方电气集团有限公司 一种减轻高碱性煤种沾污的cfb-回转式辐射锅炉
CN102966944B (zh) * 2012-12-11 2015-05-13 中国东方电气集团有限公司 一种减轻高碱性煤种沾污的cfb-回转式辐射锅炉
EP2857746A1 (fr) * 2013-10-03 2015-04-08 Babcock & Wilcox Power Generation Group, Inc. Générateur de vapeur ultra supercritique avancée
CN105423276A (zh) * 2015-12-22 2016-03-23 绵阳市鑫科源环保科技有限公司 一种高温含尘烟气余热回收器
IT201900022395A1 (it) * 2019-11-28 2021-05-28 Ac Boilers S P A Caldaia a recupero e impianto comprendente detta caldaia a recupero
EP3828464A1 (fr) * 2019-11-28 2021-06-02 AC Boilers S.p.A. Chaudière de récupération de chaleur et installation comprenant ladite chaudière de récupération de chaleur

Also Published As

Publication number Publication date
DE3542803C1 (fr) 1987-01-29
ZA869136B (en) 1987-08-26
EP0227928A3 (fr) 1988-03-02

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