GB960759A - Axial floor fan means for the transport of dust-laden gases - Google Patents

Axial floor fan means for the transport of dust-laden gases

Info

Publication number
GB960759A
GB960759A GB4895662A GB4895662A GB960759A GB 960759 A GB960759 A GB 960759A GB 4895662 A GB4895662 A GB 4895662A GB 4895662 A GB4895662 A GB 4895662A GB 960759 A GB960759 A GB 960759A
Authority
GB
United Kingdom
Prior art keywords
fan
hub
scavenging air
pressure chamber
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.)
Expired
Application number
GB4895662A
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Publication of GB960759A publication Critical patent/GB960759A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/001—Pumps adapted for conveying materials or for handling specific elastic fluids
    • F04D23/005—Pumps adapted for conveying materials or for handling specific elastic fluids of axial-flow type

Landscapes

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

Abstract

960,759. Axial-flow fans. SVENSKA FLAKTFABRIKEN. AB. Dec. 28, 1962 [Dec. 29, 1961], No. 48956/62. Heading F1C. In an axial-flow fan for conveying dust-laden gases, having rotatably adjustable fan blades 4 each provided with a spindle 6 journalled in the fan hub 5 and secured in a blade base plate 7 countersunk in the hub 5, the recesses in the hub for the base plates are formed to provide a circular slot 14 between each base plate and the hub body, and means are provided for supplying the slot 14 if desired with scavenging air which may be preheated. The scavenging air prevents the dust carried by the main flow from settling on the hub periphery and, if preheated, also prevents moisture in the main stream from condensing on the hub 5. The scavenging air, corresponding for example, to 1-2% of the main flow carried by the fan 1, may be supplied by an auxiliary fan 19 which discharges into a conduit 18 containing a heater 20, a filter or other air cleaner 21 and a throttle 22. Alternatively, the fan 19 may be omitted and the suction of the fan 1 utilized. The conduit 18 supplies the scavenging air to a pressure chamber 16 formed, at the admission side of the fan 1, between the hub 5 and a cap 7. The pressure chamber 16 directs the scavenging air through bores 15 to the slots 14. In an alternative embodiment (not shown) the fan hub has an enclosed pressure chamber which supplies the scavenging air to the slots 14 through hollow blade spindles. Thus, if cold scavenging air is used, it will cool the blade spindles and bushings.
GB4895662A 1961-12-29 1962-12-28 Axial floor fan means for the transport of dust-laden gases Expired GB960759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1310461 1961-12-29

Publications (1)

Publication Number Publication Date
GB960759A true GB960759A (en) 1964-06-17

Family

ID=20296835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4895662A Expired GB960759A (en) 1961-12-29 1962-12-28 Axial floor fan means for the transport of dust-laden gases

Country Status (2)

Country Link
DK (1) DK113666B (en)
GB (1) GB960759A (en)

Also Published As

Publication number Publication date
DK113666B (en) 1969-04-14

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