US3637196A - Spinning top for the ventilation of liquids - Google Patents

Spinning top for the ventilation of liquids Download PDF

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Publication number
US3637196A
US3637196A US3637196DA US3637196A US 3637196 A US3637196 A US 3637196A US 3637196D A US3637196D A US 3637196DA US 3637196 A US3637196 A US 3637196A
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US
United States
Prior art keywords
inlet
outlet
wall member
set forth
yoke portion
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 - Lifetime
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English (en)
Inventor
Joseph Richard Kaelin
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Linde GmbH
Original Assignee
Kaelin J R
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Publication of US3637196A publication Critical patent/US3637196A/en
Assigned to LINDE AKTIENGESELLSCHAFT reassignment LINDE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE CORPORATION
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Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B01F23/234211—Stirrers thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Definitions

  • ABSTRACT Foreign Applimlifln Priority Data An aerating impeller apparatus for liquids, particularly for pu- Nov. 28, 1968 Switzerland 1778 1/68 'ifying Sewage is fumed a member ring pendently secured from a rotatable vertlcally extending shaft. 52 11.5.01 .261/91, 210/219 The member extends upwardly 3 P [51] In! CL Bomzmm and has an Inner wall shaped arcuately In the radlal direction [58] Field or's't ii'.
  • a plurality ofangularly spaced blade mem- UNITED STATES PATENTS bers are secured to and extend inwardly from the inner surface of the inner wall-forming conveyor ducts for directing liquids l,8?4,864 1/1933 Hall ..26l/9l from the inlet to the outlet of the rotor member
  • the blade 2,110,786 6/1938 Jordan ..26l/9l members have a T Shaped cross Section of generally increas 3,208,734 9/1965 Wood et 110/219 X ing size from the inlet to the outlet.
  • the edges of the crossrail 3,323,782 6/1967 261/91 X or head of the T-shaped cross section are spaced apart approximately distance constant discance from the inlet to the outlet.
  • the slight risk of obstruction can be somewhat reduced in Simplex" spinning tops by driving the top in one direction and then in the other, which is done in any case in order to prevent the whole of the liquid from revolving after a certain time.
  • the object of the invention is to provide a spinning top of the internally bladed type which, with regard to performance and input, is generally or nearly equivalent to spinning tops with closed conveyor ducts and, as regards tendency to obstruct, is generally equivalent to, or an improvement on, existing spinning tops equipped with blades on the inside or outside.
  • the invention provides a vertical axis-spinning top, for the ventilation of liquids, comprising a rotor diverging from the bottom to the top and equipped with a blade ring on the inside, and a supporting structure for linking the spinning top of a drive shaft, the blade ring dividing the inside of the rotor into a number of conveyor ducts leading from an inlet at the bottom to the top and open on the inside, for the liquid to be ventilated, wherein at least some of the blades are fitted with conveyor surfaces projecting over the bases of the blades at least within the peripheral end zone of the conveyor ducts.
  • the blades preferably have a T-shaped section, particularly as both sides of the blades thus serve as conveyor surfaces.
  • the risk of obstruction is particularly slight in a preferred form of construction of the spinning top, in which the height of the blades gradually increase, starting at the beginning of the conveyor ducts, from zero to a maximum value, whereby the maximum height of the blades lies between the beginning and the end zone of the conveyor ducts.
  • the T-shaped section of the blades is preferably such that the width of the crossrail of the T-shaped section gradually increases from the beginning to the end zone of the conveyor ducts, while the supporting structure is preferably at the same time secured to the free-standing top of the crossrail of the blades of a T-shaped section.
  • FIG. 1 shows a perspective view of a ventilation spinning top with its supporting structure secure-d to a drive shaft;
  • FIG. 2 shows an open view of part of the ventilation spinning top as per FIG. 1;
  • FIG. 3 shows a partial view, on a larger scale, diagonally from the bottom to the top through the lower suction opening of the ventilation spinning top as per FIGS. 1 and 2.
  • the spinning top 1 is equipped with a rotor 2 which diverges to the top from a suction opening or inlet 8 (FIG. 2) at the bottom.
  • An internal wall 6 of the rotor 2 is equipped with a number of blades 3 which limit a number of conveyor ducts 7 extending from the bottom to the top for carrying the liquid to be purified.
  • the conveyor ducts 7 are open on the inside.
  • the tops of the blades 3a, 3b and 3c are fitted with a supporting structure 5 which provides a link to a drive shaft 4.
  • the ventilation-spinning top illustrated is intended to be driven in alternate directions. This is the reason why both lateral surfaces of the blades 3 are designed in the form of conveyor surfaces 9 and 10 (FIG. ll) whereby, if driven in the sense of arrow 11, each conveyor surface 9 becomes effective, as shown in FIG. I by shaded section 12. On the other hand, if the spinning top revolves in the opposite direction the conveyor surfaces 10 become effective. Particularly in the peripheral or outer end zone of the conveyor ducts 7, the blades 3 are given a pronounced T-shaped section 13 by means of crossrails 14 whose free extremities form the longitudinal edges of the conveyor surfaces 9 and 10 respectively.
  • the shape of the blades 3 is clearly illustrated by FIGS. 2 and 3.
  • the height of the section of the blades 3, located at about right angles on the internal wall 6 of rotor 2 increases, starting at the suction opening 8, from zero to a maximum value and decreases again somewhat towards the end of the conveyor ducts 7, Le, towards the periphery of the spinning top.
  • the width of the crossrail 14 of the T-shaped section 13 increases, starting at the suction opening, from zero to its maximum at the end of the conveyor ducts 7.
  • the width of the crossrails 14 is such that the distance between the free extremities of adjacent crossrails facing each other remains practically constant from the inlet opening 8 to the end of the conveyor ducts 7.
  • junction between the surface of internal wall 6 and the adjacent section of the blade surface at base 15 of the blade is rounded off (see FIG. 3), as are the junctions at the bridge of the upright of the T-shaped section with the crossrail 14.
  • This rounded-ofi shape can be still :more pronounced than illustrated by the drawing, until the bridge and the crossrail of the T-shaped section gradually pass into the surface of the internal wall 6 in the shape of an arc.
  • the supporting structure 5 comprises a three-pronged star whose arms 16 have a flat vertical section and extend in an arc shape from a central hub 17 to the top of the crossrails of the blades 3a, 3b and 3c.
  • the outer extremities of thearms 16 are welded to the crossrails of these blades 30, 3b and 3c, whereby all the junctions are clearly rounded off.
  • the drive shaft 4 is secured to the hub 17 with the aid of a flange 18 and a bolt 19.
  • FIG. 2 shows that the shape of the internal wall 6 of the rotor 2 is convex on the inside.
  • the external wall 20 assumes the shape of a truncated cone diverging conically from the bottom to the top, whereby the base lines coincide with the edges of the internal wall.
  • the rotor thus assurnes a shape which is comparable to a torus with a circular segment as generatrix.
  • the rotor 2 thus comprises a ringshaped hollow 21 which can either be empty (right-hand side bearings. As the spinning top illustrated is freely suspended,
  • the bearing of the shaft 4 has to absorb the weight of the spinning top and of the shaft, which acts in the axial direction and to which, when in actual operation, has to be added the force of reaction acting in the same direction which is generated by the lifting of the liquid above level 24.
  • the axial bearing thus has to absorb substantial axial forces which increase with the amount of liquid lifted by the spinningtop. Due to the hollow 21, which may be filled with the floating material 22, bouyancy forces are generated which act in the opposite direction to that of these axial forces and which reduce the bearing load considerably, and thus also the bearing losses.
  • the spinning top illustrated can be made, in addition to stainless metal alloys, particularly light metal alloys, of plastic materials, such as glass fiber reinforced polyester resins, which enable perfectly smooth surfaces to be obtained, without any special further processing.
  • An aerating impeller apparatus for liquids comprising a rotatable vertical shaft, a rotor member secured to said shaft range of said outlet, a plurality of blade members secured to said wall member and extending thereon between the inlet and the outlet, said blade members arranged in angularly spaced relationship to one another, each of said blade members comprising a leg portion extending radially inwardly and upwardly from said wall member and a yoke portion extending substantially at right angles to said leg portion and in spaced relationship from said wall member, said yoke portion defining at least one lateral free edge extending along the length of said yoke portion between the inlet and the outlet, and the free edge of said yoke portion blending in the range of said inlet with the surface of said leg portion and the height of said leg portion decreasing in the range of said inlet to a minimum value.
  • An aerating impeller apparatus as set forth in claim 1, characterized in that a supporting structure is secured to said yoke portions of a number of said blade members and to the lower end of said shaft.
  • An aerating impeller apparatus as set forth in claim 7, characterized in that an annular hollow space is formed between the outer surface of said outwardly and upwardly flaring annular wall member and the inner surface of said outside wall member, and a foamed floating filler being disposed in said hollow space.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Treating Waste Gases (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US3637196D 1968-11-28 1969-11-28 Spinning top for the ventilation of liquids Expired - Lifetime US3637196A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1778168A CH478719A (de) 1968-11-28 1968-11-28 Vertikalachsiger Belüfterkreisel zum Belüften von Flüssigkeiten, insbesondere von zu klärenden Abwässern

Publications (1)

Publication Number Publication Date
US3637196A true US3637196A (en) 1972-01-25

Family

ID=4428059

Family Applications (1)

Application Number Title Priority Date Filing Date
US3637196D Expired - Lifetime US3637196A (en) 1968-11-28 1969-11-28 Spinning top for the ventilation of liquids

Country Status (17)

Country Link
US (1) US3637196A (fi)
AT (1) AT293297B (fi)
BE (1) BE742365A (fi)
BG (1) BG15247A3 (fi)
CA (1) CA922309A (fi)
CH (1) CH478719A (fi)
CS (1) CS149664B2 (fi)
DE (1) DE1959262C3 (fi)
DK (1) DK132791C (fi)
ES (1) ES374274A1 (fi)
FI (1) FI48265C (fi)
FR (1) FR2024426A1 (fi)
GB (1) GB1283237A (fi)
LU (1) LU59899A1 (fi)
NL (1) NL6917793A (fi)
NO (1) NO124988B (fi)
SE (1) SE353891B (fi)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741682A (en) * 1970-02-13 1973-06-26 Hartley Simon Ltd Aerators
DE2559170A1 (de) * 1975-09-24 1977-03-31 Kaelin J R Oberflaechenbelueftungskreisel
US4262976A (en) * 1979-07-31 1981-04-21 Alcide Bertrand Bearing support
US4322377A (en) * 1978-06-12 1982-03-30 Kaelin J R Surface aerating rotor
WO1982004037A1 (en) * 1981-05-13 1982-11-25 Aksel Sondergard Frandsen Water oxidation plant for waters,especially intended for fish ponds
US4666611A (en) * 1983-12-07 1987-05-19 Kaelin J R Sewage-aeration system, and method for the operation and use thereof
US4676718A (en) * 1984-08-16 1987-06-30 Oy E. Sarlin Ab Impeller for a pump, especially a vortex pump
US4904159A (en) * 1988-07-18 1990-02-27 Suburbia Systems, Inc. Pump impeller
US20090241403A1 (en) * 2008-03-28 2009-10-01 Foss Daniel V Ice fishing hole maintenance system
US20130175358A1 (en) * 2012-01-06 2013-07-11 Chung-Ming Lee Rotary blade and atomizer comprising the same
US20150335979A1 (en) * 2014-05-23 2015-11-26 Mark Sheppard Golf putting training aid
US10688457B2 (en) 2018-03-13 2020-06-23 Arthur Jensen Ice fishing hole preservation apparatus
US11378091B2 (en) * 2019-07-02 2022-07-05 Dab Pumps S.P.A. Impeller for centrifugal pump, particularly for pump of the recessed impeller type, and pump with such an impeller

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2559235B2 (de) * 1975-12-30 1981-03-26 Fa. Erwin Stelzer, 3530 Warburg Begasungsvorrichtung
JP5313419B2 (ja) 1999-03-10 2013-10-09 チバ ホールディング インコーポレーテッド 有機材料用着色剤としてのベンゾフラン−２−オン
CN110510819A (zh) * 2019-09-02 2019-11-29 深圳市前海万绿源环保科技有限公司 一种污水用爆气球处理工艺

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894864A (en) * 1928-11-02 1933-01-17 Charles L Sprinkle Air humidifier and washer
US2120786A (en) * 1935-08-02 1938-06-14 John G Jordan Treatment of sewage
GB862761A (en) * 1957-04-05 1961-03-15 Ames Crosta Mills & Company Lt Improvements in or relating to the surface aeration of liquids
US3208734A (en) * 1962-01-08 1965-09-28 Carves Simon Ltd Aeration of liquids
US3323782A (en) * 1962-05-07 1967-06-06 Carves Simon Ltd Aeration of liquids
US3462132A (en) * 1967-08-07 1969-08-19 Kaelin J R System for surface aeration of liquid
US3479017A (en) * 1966-02-10 1969-11-18 Metallgesellschaft Ag Apparatus for charging liquids with gases
US3497185A (en) * 1968-11-20 1970-02-24 Sydnor Hydrodynamics Inc Aerating and cooling apparatus
US3515375A (en) * 1968-05-22 1970-06-02 Bird Machine Co Aeration apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1894864A (en) * 1928-11-02 1933-01-17 Charles L Sprinkle Air humidifier and washer
US2120786A (en) * 1935-08-02 1938-06-14 John G Jordan Treatment of sewage
GB862761A (en) * 1957-04-05 1961-03-15 Ames Crosta Mills & Company Lt Improvements in or relating to the surface aeration of liquids
US3208734A (en) * 1962-01-08 1965-09-28 Carves Simon Ltd Aeration of liquids
US3323782A (en) * 1962-05-07 1967-06-06 Carves Simon Ltd Aeration of liquids
US3479017A (en) * 1966-02-10 1969-11-18 Metallgesellschaft Ag Apparatus for charging liquids with gases
US3462132A (en) * 1967-08-07 1969-08-19 Kaelin J R System for surface aeration of liquid
US3515375A (en) * 1968-05-22 1970-06-02 Bird Machine Co Aeration apparatus
US3497185A (en) * 1968-11-20 1970-02-24 Sydnor Hydrodynamics Inc Aerating and cooling apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741682A (en) * 1970-02-13 1973-06-26 Hartley Simon Ltd Aerators
DE2559170A1 (de) * 1975-09-24 1977-03-31 Kaelin J R Oberflaechenbelueftungskreisel
US4322377A (en) * 1978-06-12 1982-03-30 Kaelin J R Surface aerating rotor
US4262976A (en) * 1979-07-31 1981-04-21 Alcide Bertrand Bearing support
WO1982004037A1 (en) * 1981-05-13 1982-11-25 Aksel Sondergard Frandsen Water oxidation plant for waters,especially intended for fish ponds
US4666611A (en) * 1983-12-07 1987-05-19 Kaelin J R Sewage-aeration system, and method for the operation and use thereof
US4676718A (en) * 1984-08-16 1987-06-30 Oy E. Sarlin Ab Impeller for a pump, especially a vortex pump
US4904159A (en) * 1988-07-18 1990-02-27 Suburbia Systems, Inc. Pump impeller
US20090241403A1 (en) * 2008-03-28 2009-10-01 Foss Daniel V Ice fishing hole maintenance system
US8425109B2 (en) * 2008-03-28 2013-04-23 Daniel V. Foss Ice fishing hole maintenance system
US20130175358A1 (en) * 2012-01-06 2013-07-11 Chung-Ming Lee Rotary blade and atomizer comprising the same
US20150335979A1 (en) * 2014-05-23 2015-11-26 Mark Sheppard Golf putting training aid
US10092810B2 (en) * 2014-05-23 2018-10-09 Mark Sheppard Golf putting training aid
US10688457B2 (en) 2018-03-13 2020-06-23 Arthur Jensen Ice fishing hole preservation apparatus
US11378091B2 (en) * 2019-07-02 2022-07-05 Dab Pumps S.P.A. Impeller for centrifugal pump, particularly for pump of the recessed impeller type, and pump with such an impeller

Also Published As

Publication number Publication date
CS149664B2 (en) 1973-07-25
FR2024426A1 (fi) 1970-08-28
FI48265C (fi) 1974-08-12
DE1959262C3 (de) 1974-06-27
CA922309A (en) 1973-03-06
BE742365A (fi) 1970-05-04
BG15247A3 (bg) 1976-08-02
DE1959262A1 (de) 1970-05-27
DE1959262B2 (de) 1973-12-06
NO124988B (fi) 1972-07-03
GB1283237A (en) 1972-07-26
SE353891B (fi) 1973-02-19
DK132791B (da) 1976-02-09
ES374274A1 (es) 1971-12-16
AT293297B (de) 1971-09-27
NL6917793A (fi) 1970-06-01
FI48265B (fi) 1974-04-30
DK132791C (da) 1976-07-12
LU59899A1 (fi) 1970-01-26
CH478719A (de) 1969-09-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UNION CARBIDE CORPORATION;REEL/FRAME:003831/0006

Effective date: 19810113

Owner name: LINDE AKTIENGESELLSCHAFT, A CORP. OF GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION;REEL/FRAME:003831/0006

Effective date: 19810113