DE642871C - Mill firing - Google Patents

Mill firing

Info

Publication number
DE642871C
DE642871C DED62868D DED0062868D DE642871C DE 642871 C DE642871 C DE 642871C DE D62868 D DED62868 D DE D62868D DE D0062868 D DED0062868 D DE D0062868D DE 642871 C DE642871 C DE 642871C
Authority
DE
Germany
Prior art keywords
mill
firing
grinding chamber
combustion chamber
mill firing
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
Application number
DED62868D
Other languages
German (de)
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.)
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Original Assignee
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Publication date
Priority to DED62868D priority Critical patent/DE642871C/en
Application granted granted Critical
Publication of DE642871C publication Critical patent/DE642871C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F23K2201/1006—Mills adapted for use with furnaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crushing And Grinding (AREA)

Description

Mühlenfeuerung Die Erfindung betrifft eine Mühlenfeuerung und besteht darin, daß die Wand zwischen Mahlraum und Brennraum unterhalb der Austrittsöffnung nach der Mahlraumseite zu ausgekragt ist. Bei den bekannten Mühlenfeuerungen enveitert sich der Mahlraum bis zur Austrittsöffnung in der Richtung nach dem Feuerraum zu. Die von dem Schlagrad nach oben geworfenen groben Brennstoffteile gelangten daher unmittelbar vor oder in die Austrittsöffnung und wurden von dem Luftstrom mit in den Brennraum gerissen. Die Praxis hat ergeben, daß eine verhältnismäßig geringe Auskragung dieser Wand nach der Mahlraumseite zu genügt, um die nach oben geworfenen Stücke in den Mahlraum abzulenken, so daß die Mahlfeinheit ohne Erhöhung des Kraftbedarfs verbessert wird.Mill Firing The invention relates to a mill firing system and consists in that the wall between the grinding chamber and the combustion chamber is below the outlet opening is too cantilevered towards the grinding chamber side. Expanded for the known mill firing systems the grinding chamber towards the outlet opening in the direction of the combustion chamber. The coarse pieces of fuel thrown up by the impact wheel got there immediately in front of or in the outlet opening and were caught by the air flow with in cracked the combustion chamber. Practice has shown that a relatively low The projection of this wall towards the grinding chamber side is sufficient to prevent the upwardly thrown Divert pieces into the grinding chamber, so that the grinding fineness without increasing the power requirement is improved.

Die :erfindungsgemäße Anordnung ist in der Zeichnung im Längsschnitt dargestellt. Die Mühlenfeuerung, bestehend aus der Mühle a und dem Trocken- und Sichtraum b, ist mit dem Brennraume durch die Öffnung d verbunden. Aus dem obenliegenden Bunker wird der Brennstoff, durch die regelbaren Öffnungen c die Sichtluft zugeführt. Die Wand zwischen den Räumen b und e hat unterhalb der Öffnung d eine nach dem Raum b zu gerichtete Auskragung, welche als Abweiser für die von der Mühle hochgeworfenen Brennstoffstücke dient. Diese werden. somit nach der Mahlraummitte hin abgelenkt und kommen nicht in Gefahr, von dem Luftstrom mit in die Öffnung d und in den Brennraum e gerissen zu werden, wo sie ausfallen würden und auf dem Rost t verbrannt werden müßten.The arrangement according to the invention is shown in the drawing in longitudinal section. The mill furnace, consisting of the mill a and the drying and sifting room b, is connected to the combustion chamber through opening d . The fuel is fed from the bunker above and the classifying air through the adjustable openings c. The wall between spaces b and e has a projection below opening d , which is directed towards space b and serves as a deflector for the pieces of fuel thrown up by the mill. These will. thus deflected towards the center of the grinding chamber and do not run the risk of being torn by the air flow into opening d and into combustion chamber e, where they would fail and would have to be burned on grate t.

Claims (1)

PATENTANSPRUCEI: Mühlenfeuerung, dadurch gekennzeichnet, daß die Zwischenwand zwischen Mahlraum und Brennraum unterhalb der Austrittsöffnung (d) nach der Mahlraumseite zu ausgekragt ist.PATENT CLAIM: Mill firing, characterized in that the partition between the grinding chamber and the combustion chamber below the outlet opening (d) on the grinding chamber side is too cantilevered.
DED62868D Mill firing Expired DE642871C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED62868D DE642871C (en) Mill firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED62868D DE642871C (en) Mill firing

Publications (1)

Publication Number Publication Date
DE642871C true DE642871C (en) 1937-03-18

Family

ID=7058567

Family Applications (1)

Application Number Title Priority Date Filing Date
DED62868D Expired DE642871C (en) Mill firing

Country Status (1)

Country Link
DE (1) DE642871C (en)

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