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EP2508800A3 - Dry grinding device - Google Patents

Dry grinding device Download PDF

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Publication number
EP2508800A3
EP2508800A3 EP12162930.7A EP12162930A EP2508800A3 EP 2508800 A3 EP2508800 A3 EP 2508800A3 EP 12162930 A EP12162930 A EP 12162930A EP 2508800 A3 EP2508800 A3 EP 2508800A3
Authority
EP
European Patent Office
Prior art keywords
steam generator
coal
heat
air flow
grinding device
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Withdrawn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
EP12162930.7A
Other languages
German (de)
French (fr)
Other versions
EP2508800A2 (en
Inventor
Andreas Schmidt
Andreas Klein
Gerhard Ruff
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.)
Steag Energy Services GmbH
Original Assignee
Steag Energy Services GmbH
Steag Power Saar GmbH
EnBW Energie Baden Wuerttemberg 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
Application filed by Steag Energy Services GmbH, Steag Power Saar GmbH, EnBW Energie Baden Wuerttemberg AG filed Critical Steag Energy Services GmbH
Publication of EP2508800A2 publication Critical patent/EP2508800A2/en
Publication of EP2508800A3 publication Critical patent/EP2508800A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • F23K1/04—Heating fuel prior to delivery to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/10—Pulverizing
    • F23K2201/103—Pulverizing with hot gas supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/20—Drying

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Air Supply (AREA)
  • Drying Of Solid Materials (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

Die Erfindung betrifft eine Vorrichtung zur Mahltrocknung für einen mit gemahlener Steinkohle zu befeuernden Dampferzeuger eines Kraftwerks, mit einer der Kohlemühle (4) vorgeschalteten Einrichtung (9) zur Erzeugung eines die gemahlene Steinkohle trocknenden und zu dem Dampferzeuger transportierenden Luftstroms, die einen Wärme aus den Verbrennungsgasen des Dampferzeugers oder/und entspanntem Turbinendampf auskoppelnden Wärmetauscher (10-12) zur Erwärmung des Luftstroms aufweist. Erfindungsgemäß umfasst die der Kohlemühle (4) vorgeschaltete Einrichtung (9) ferner eine dem Luftstrom (17) zusätzlich Wärme zuführende Brennereinrichtung (14).

Figure imgaf001
The invention relates to a device for grinding drying for a ground coal to be fired steam generator of a power plant, with a coal mill (4) upstream means (9) for producing a milled hard coal and transporting to the steam generator air stream, the heat from the combustion gases having the steam generator and / or relaxed turbine steam auskoppelnden heat exchanger (10-12) for heating the air flow. According to the invention, the device (9) connected upstream of the coal mill (4) further comprises a burner device (14) which additionally supplies heat to the air flow (17).
Figure imgaf001
EP12162930.7A 2011-04-04 2012-04-03 Dry grinding device Withdrawn EP2508800A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110016022 DE102011016022A1 (en) 2011-04-04 2011-04-04 Mill drying device

Publications (2)

Publication Number Publication Date
EP2508800A2 EP2508800A2 (en) 2012-10-10
EP2508800A3 true EP2508800A3 (en) 2015-01-21

Family

ID=46025430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12162930.7A Withdrawn EP2508800A3 (en) 2011-04-04 2012-04-03 Dry grinding device

Country Status (2)

Country Link
EP (1) EP2508800A3 (en)
DE (1) DE102011016022A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732219A1 (en) * 1996-08-03 1998-02-05 Evt Energie & Verfahrenstech Method for firing highly=volatile browncoal dust
WO2008127709A2 (en) * 2007-04-11 2008-10-23 Great River Energy Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein
WO2010084156A1 (en) * 2009-01-21 2010-07-29 Paul Wurth S.A. Method for producing pulverized coal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19732219A1 (en) * 1996-08-03 1998-02-05 Evt Energie & Verfahrenstech Method for firing highly=volatile browncoal dust
WO2008127709A2 (en) * 2007-04-11 2008-10-23 Great River Energy Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein
WO2010084156A1 (en) * 2009-01-21 2010-07-29 Paul Wurth S.A. Method for producing pulverized coal

Also Published As

Publication number Publication date
EP2508800A2 (en) 2012-10-10
DE102011016022A1 (en) 2012-10-04

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Owner name: STEAG ENERGY SERVICES GMBH

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