DE831580C - Device for conveying dusty gases by means of an axial blower - Google Patents

Device for conveying dusty gases by means of an axial blower

Info

Publication number
DE831580C
DE831580C DEP2975A DEP0002975A DE831580C DE 831580 C DE831580 C DE 831580C DE P2975 A DEP2975 A DE P2975A DE P0002975 A DEP0002975 A DE P0002975A DE 831580 C DE831580 C DE 831580C
Authority
DE
Germany
Prior art keywords
fan
dust
conveying
blades
axial fan
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
DEP2975A
Other languages
German (de)
Inventor
Dipl-Ing Otto Anschuetz
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
Priority to DEP2975A priority Critical patent/DE831580C/en
Application granted granted Critical
Publication of DE831580C publication Critical patent/DE831580C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00Other rotary non-positive-displacement pumps
    • F04D23/001Pumps adapted for conveying materials or for handling specific elastic fluids
    • F04D23/003Pumps adapted for conveying materials or for handling specific elastic fluids of radial-flow type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

Bei Förderung von staubhaltigen Gasen, z. B. von in einem Luftstrom schwebendem Kohlenstaub, werden die Flügel des Förderventilators um so schneller abgenutzt, je mehr grobe: Staub mit ihnen in Berührung kommt. Dieser grobe Staub kann nicht ganz vermieden werden, da es wegen des hohen Kraftbedarfs unwirtschaftlich ist, die Mahlfeinheit zu übertreiben.When conveying dusty gases, e.g. B. from in an air stream floating coal dust, the blades of the conveyor fan become faster worn out, the more rough: dust comes into contact with them. This coarse dust cannot be completely avoided as it is uneconomical due to the high power requirement is to exaggerate the fineness of the grind.

Die Erfindung besteht in einer= Vorrichtung zur Vermeidung des geschilderten Übelstandes.The invention consists in a = device for avoiding the described Evil.

Die Vorrichtung bewirkt, daß der unter Druck von der Mühle kommende Staubluftstrom ohne besondere Abzweigungen oder Umlenkungen innerhalb des von der Mühle zur Verbrauchsstelle führenden Gebläsekanals vor <lern zwischengeschalteten Axialgebläse von dem groben Staub befreit wird, indem er z. B. in zwei konzentrische Ströme unterteilt wird, von denen der innere zylindrische im Durchinesser ungefähr dein des Ventilatorflügelrades entspricht, während der äußere ringförmige etwas sdhmaler ist als der ringförmigeRaum zwischen den Spitzen der Ventilatorflügel und der Kanalwandung.The device causes the coming under pressure from the mill Dust air flow without special branches or deflections within the Mill to the point of consumption leading blower duct before <learning intermediate Axial fan is freed from the coarse dust by z. B. in two concentric Streams are divided, of which the inner cylindrical in diameter approximately Your of the fan impeller corresponds to, while the outer ring-shaped something sd is smaller than the annular space between the tips of the fan blades and the canal wall.

Die Führung des ringförmigen Stromes ist so lang, daß nur der feine Staub mit den Ventilatorflügeln in Berührung kommt, während der grobe Staub durch den Spalt zwischen Veritilatorflügeln und Kanalwandung strömt lind, ohne die Ventilatorflügel berührt zu haben, hinter dem Ventilator (lern Staubstrom wieder zugemischt wird. Der grobe Staub kann aber auch zur Mühle zurückgeführt oder sonstwie verwendet werden.The passage of the ring-shaped stream is so long that only the fine Dust comes into contact with the fan blades while the coarse dust comes through The gap between the veritilator blades and the duct wall flows gently without the fan blades having touched, behind the fan (learning the dust flow is mixed in again. The coarse dust can also be returned to the mill or used in some other way.

Besondere Vorteile der Erfindung sind, daß Staubabscheidungsvorrichtung, Verdrängungskörper und Axialgebläse in einer Flucht in gedrängter, raumsparender Anordnung im Gaskanal untergebracht sind.Particular advantages of the invention are that dust separation device, Displacement body and axial fan in alignment in a compact, space-saving manner Arrangement are housed in the gas duct.

In der Zeichnung ist ein Ausführungsbeispiel dargestellt. Die Abbildung zeigt den Gebläsekanal mit Einbauten gemäß der Erfindung im Längsschnitt.An exemplary embodiment is shown in the drawing. The illustration shows the fan duct with internals according to the invention in longitudinal section.

In dein Gebläsekanal i ist ein Verdrängungskörper 3 eingebaut, welcher mit seiner Spitze 4 zur Ul>erwindung von Strömungswiderständen der Form des Ventilatorkopfes 5 angepaßt ist. Zwecks Erleichterung der Abscheidung des groben Staubes kann der Gebläsekanal, wie bei 2 gezeigt, etwas erweitert werden. Dicht hinter (.lern vorderen Teil des Verdrängungskörpers 3 ist ein bis vor die Ventilatorflüge1 6 reichendes Leitrohr 7 so angebracht, daß zwischen Gebläsekanal i und Leitrohr 7 ein ringförmiger Kanal 8 entsteht, durch welchen die unter Druck von der Staubmühle kommenden groben Staubteilchen, die durch den Verdrängungskörper 3 infolge ihrer größeren Schwerkraft am weiteten nach außen abgedr:ingt werden, frei weiterströmen, ohne die Ventilatorflügel 6 zu berühren. Das feinere Statib-Luft-Gentisch wird durch einen Spalt g angesaugt und vermischt sich hinter dem Ventilator io mit den mitgerissenen gröberen Staubteilchen. Die \-'entilatorfliige16 beschreiben einen etwas kleineren Kreis, als dem Durchmesser des Leitrohrs; entspricht.A displacement body 3 is built into your fan duct i, which with its tip 4 for the winding of flow resistances in the shape of the fan head 5 is adapted. In order to facilitate the separation of the coarse dust, the Fan duct, as shown at 2, can be widened somewhat. Close behind (. Learn front Part of the displacement body 3 is one that extends up to the front of the ventilator flights 1 6 Guide tube 7 attached so that between the fan duct i and guide tube 7 is an annular Channel 8 is created through which the coarse coming under pressure from the dust mill Dust particles by the displacement body 3 due to their greater gravity to the outside: be pushed as far as possible, flow freely without the fan blades 6 to touch. The finer Statib-Luft-Gentisch is sucked in through a gap g and mixes behind the fan io with the coarser dust particles that are carried along. The fan blades 16 describe a circle that is a little smaller than the diameter of the guide scope; is equivalent to.

Claims (1)

PATENTANSPRUCH: Vorrichtung zur Förderung staubhaltiger Gase mittels Axialgebläse, hei der zur Schonung der Flügel des Gebläses aus dem unter Druck von der Staubmühle kommenden Staubluftstrom die gröberen Staubteile vor dem fördernden Axialgebläse ausgeschieden und dahinter ohne Unterbrechung oder wesentliche Ablenkung des Luftstromes wieder beigemischt werden, dadurch gekennzeichnet, daß durch den Einbau eines Leitrohres (7) in Verbindung mit einem Verdrängungskörper (3) ein Spalt (g) gebildet wird, durch welchen das Axialgebläse (io) die Luft und den feinen Staub ansaugt, während der grobe Staub durch den freien, von den Ventilatorflügeln nicht bestrichenen Ringraum (ii) geleitet wird. Angezogene Druckschriften: Deutsche Patentschriften N r. 607 157, 6o6 79j5; USA.-Patentschrift N r. 2 404 347.PATENT CLAIM: Device for conveying dusty gases by means of an axial fan, which means that, in order to protect the blades of the fan, the coarser dust particles are separated from the dusty air flow coming under pressure from the dust mill in front of the conveying axial fan and are then added again without interruption or significant deflection of the air flow, characterized in this way that by installing a guide tube (7) in connection with a displacement body (3) a gap (g) is formed through which the axial fan (io) sucks in the air and the fine dust, while the coarse dust through the free, from the fan blades not painted annulus (ii) is passed. Referred publications: German Patent Specifications N o. 607 157, 6o6 79j5; U.S. Patent No. 2 404 347.
DEP2975A 1948-10-02 1948-10-02 Device for conveying dusty gases by means of an axial blower Expired DE831580C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP2975A DE831580C (en) 1948-10-02 1948-10-02 Device for conveying dusty gases by means of an axial blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2975A DE831580C (en) 1948-10-02 1948-10-02 Device for conveying dusty gases by means of an axial blower

Publications (1)

Publication Number Publication Date
DE831580C true DE831580C (en) 1952-02-14

Family

ID=7358369

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP2975A Expired DE831580C (en) 1948-10-02 1948-10-02 Device for conveying dusty gases by means of an axial blower

Country Status (1)

Country Link
DE (1) DE831580C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438182A1 (en) * 1978-10-04 1980-04-30 Avco Corp AIR PUMP WITH PRIMARY AND SECONDARY SUCTION CHANNELS
US4979873A (en) * 1988-02-01 1990-12-25 Asea Brown Boveri Ltd. Steam turbine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606795C (en) * 1934-12-10 Babcock & Wilcox Dampfkessel W Plant for grinding, conveying, bunkering, distributing and burning coal dust
DE607157C (en) * 1932-10-19 1934-12-18 Schiele & Co G M B H G Impeller to centrifugal blower for the transport of air with solid components
US2404347A (en) * 1939-12-18 1946-07-23 Bieth Tom Conrad Apparatus for cleaning of flue gases

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606795C (en) * 1934-12-10 Babcock & Wilcox Dampfkessel W Plant for grinding, conveying, bunkering, distributing and burning coal dust
DE607157C (en) * 1932-10-19 1934-12-18 Schiele & Co G M B H G Impeller to centrifugal blower for the transport of air with solid components
US2404347A (en) * 1939-12-18 1946-07-23 Bieth Tom Conrad Apparatus for cleaning of flue gases

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438182A1 (en) * 1978-10-04 1980-04-30 Avco Corp AIR PUMP WITH PRIMARY AND SECONDARY SUCTION CHANNELS
US4979873A (en) * 1988-02-01 1990-12-25 Asea Brown Boveri Ltd. Steam turbine

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