US3862747A - Additive diffusor - Google Patents

Additive diffusor Download PDF

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Publication number
US3862747A
US3862747A US28067572A US3862747A US 3862747 A US3862747 A US 3862747A US 28067572 A US28067572 A US 28067572A US 3862747 A US3862747 A US 3862747A
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US
United States
Prior art keywords
additive
rotor
rotation
diffusor
passage means
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
Application number
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English (en)
Inventor
Harvey E Richter
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.)
AIRSONIC INTERNATIONAL Inc A CORP OF FLORIDA
Tec Group Inc
TEC GROUP
Original Assignee
TEC GROUP
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 TEC GROUP filed Critical TEC GROUP
Priority to US28067572 priority Critical patent/US3862747A/en
Priority to GB3646673A priority patent/GB1390340A/en
Priority to DE19732340924 priority patent/DE2340924A1/de
Priority to JP9010273A priority patent/JPS4959349A/ja
Priority to IT2785473A priority patent/IT992950B/it
Priority to FR7330110A priority patent/FR2196190B3/fr
Application granted granted Critical
Publication of US3862747A publication Critical patent/US3862747A/en
Assigned to AIRSONIC INTERNATIONAL, INC., A CORP OF FLORIDA reassignment AIRSONIC INTERNATIONAL, INC., A CORP OF FLORIDA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: RICHLER HARVEY E.
Assigned to AIRSONIC INTERNATIONAL, INC., A CORP OF FLORIDA reassignment AIRSONIC INTERNATIONAL, INC., A CORP OF FLORIDA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: RICHTER HARVEY E.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/25—Mixers with rotating receptacles with material flowing continuously through the receptacles from inlet to discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
    • B01F29/63—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers with fixed bars, i.e. stationary, or fixed on the receptacle
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/0971—Speed responsive valve control
    • Y10T137/108—Centrifugal mass type [exclusive of liquid]

Definitions

  • This invention generally relates to an apparatus for material handling and particularly concerns an apparatus for homogeneously mixing large volumes of different material.
  • a primary object of this invention is to provide a new and improved additive diffusor particularly suited for use with flow propulsion units of an axial flow type.
  • Another object of this invention is to provide such an additive diffusor capable of continuously supplying a selected additive to a material being propelled through a flow passageway to effect efficient mixing of the additive and the propelled material in a highly diffused homogeneous mixture.
  • a further object of this invention is to provide such an additive diffusor which may be used fora variety of different applications and is particularly suited for continuously dispersing an additive into a flow passageway in association with equipment having increased throughput capabilities for high volume processes.
  • Still another object of this invention is to provide a new and improved additive diffusor of the type described capable of meeting stringent performance requirements under strenuous conditions with few service problems.
  • FIG. 1 is a side view, partly broken away and partly in section, of an axial flow unit incorporating an additive diffusor of this invention
  • FIG. 2 is a side view, partly broken away and partly in section, showing an additive collection ring which is externally mounted on a rotor of the axial flow unit of FIG. 1;
  • FIG. 3 is an axial end view showing a blade profile projection of the axial flow unit of FIG. 1.
  • a pump which is an axial flow unit and may be either a single stage or multiple stage unit having a cylindrical rotor 12 in each stage of the unit such as fragmentarily illustrated in half-section in FIG. 1.
  • Impeller blades such as shown at 14 in FIG. 1 provide propulsion for material in a flow passageway of the rotor 12 in the direction of arrow 16 from an inlet end of the unit, not shown, to an outlet end of the unit at the left-hand side of rotor 12 in FIG. 1.
  • Impeller blades such as shown at 14 in FIG. 1 provide propulsion for material in a flow passageway of the rotor 12 in the direction of arrow 16 from an inlet end of the unit, not shown, to an outlet end of the unit at the left-hand side of rotor 12 in FIG. 1.
  • the rotor 12 is shown mounted for rotation within a cylindrical chamber formed within a housing generally designated 18.
  • Units of this general type are normally powered and require a suitable power source such as a motor, not shown, for rotating an input shaft, not shown, drivingly connected to a drive gear 20 shown in mesh with a driven ring gear 22 secured by bolts such as at 24 to an outside wall of the rotor 12.
  • housing 18 provides mountings for drive shaft bearings 26 within housing gear casing 28 and also for bearings such as at 30 supporting the rotor 12 for rotation about a rotational axis generally designated X-X.
  • X-X a rotational axis generally designated X-X.
  • annular end mounting flanges such as 34 are suitably secured by a machine bolt, not shown, to each axial end of the housing 18 to maintain a seal assembly such as at 36 in operative association with the rotor 12 within enlarged annular chambers as at 38 which will be understood to circumferentially extend around the axial end portions of rotor 12.
  • the illustrated left-hand axial end of rotor 12 is provided with a seal mating ring 40 shown secured on the lefthand end portion of rotor 12 (FIG.
  • Seal mating ring 40 is drivingly connected to the rotor by removable retaining pins such as shown at 46, and pins 46 cooperate with a retaining ring 48 to releasably secure the seal assembly 36 in position on the rotor 12.
  • ring seal subassemblies 50, 52 secured to housing 18 and presenting oppositely facing radial surfaces for sealing engagement with an adjacent side of seal mating ring 40.
  • an additive diffusor 53 is providedfor dispersing a selected additive in controlled proportions relative to the flow media passing through the rotor 12.
  • This invention may be employed in different ways, e.g., in dispersing solid particulate matter into a sludge of flowable material passing through rotor 12, or in mixing different fluids such as a gaseous additive to be homogeneously mixed together with a liquid media in the passageway of rotor 12.
  • rotor impeller blade 14 extends from an inside rotor wall 54 (along line 56) to provide a free edge 58 on blade 14 disposed radially inwardly of wall 54 such that blade 14, when rotated, acts as a screw propeller to propel flow media through the rotor 12.
  • Blade 14 is preferably helical in shape and includes a trailing downstream edge 60 which is directed radially outwardly from an apex 62 of the blade 14 toward inside rotor wall 54.
  • This blunt downstream trailing edge 60 of impeller blade 14 provides for a low pressure area in the region of the flow passageway immediately adjacent the edge 60 at a predetermined rotor speed and, in accordance with another aspect of this invention, a plurality of dispersion outlets are shown such as at 64 formed in the downstream trailing edge surface of the impeller blade.
  • Each dispersion outlet 64 is connected by an individual passageway 66 to a common internal manifold 68 formed inside blade 14 which leads toward its root portion where the blade 14 merges with the inside wall 56 of rotor 12.
  • a valve body 70 is shown defining a valve chamber 72. Chamber 72 communicates with manifold 68 through an outlet port 74 and connects to the chamber 38 of housing 18 via an inlet port 76 in valve body 70 and a communicating opening 78 in the seal mating ring 40.
  • chamber 38 may conveniently serve as an additive accumulator chamber for supplying various selected additives to the flow passageway of rotor 12.
  • suitable control means is provided which is responsive to the effect of centrifugal force upon rotor rotation permitting the passage of additive flow during rotor operation. While other specific control means may be used such as a centrifugal switch or a controlswitch responsive to changes in speed or pressure, in the illustrated embodiment, a ball check valve member 80 is received in the valve chamber 72 and is biased by a spring 82 radially inwardly against a valve seat surrounding outlet port 74 and into its illustrated normally closed flow control position.
  • a common additive collection ring 84 secured by any suitable means, not shown, to circumferentially extend about the seal mating ring 40.
  • additive within the accumulator chamber 38 will be collected from chamber 38 by raised vanes 86 (best seen in FIG. 2) formed on collection ring 84 with openings facing in the direction of rotation.
  • the vanes 86 positively direct the additive into a common accumulator groove 88, which will be understood to circumferentially extend around the outer periphery of the seal mating ring 40, and through each of the plurality of openings such as illustrated at 78 in the seal mating ring 40 and into each valve chamber 72 of the impeller blades 14.
  • a suitable coupling 90 to a supply conduit 92 may be secured to the housing 18 for supplying additive (through a connecting passage therein such as at 94) into the accumulator chamber 38.
  • the illustrated arrangement obviously may be varied and tailored todifferent types of additives being supplied, depending on whether the additive is a gas, liquid or solid and the nature of the solid additive if such is being used in the application of this invention.
  • each impeller blade 14 provides a suction force at a predetermined rotational speed of the rotor as flow media passes over opposite sides of ring 84 into the common manifold 68 and through the connecting individual passages 66 to each of the dispersion outlets 64.
  • An additive diffusor constructed in accordance with this invention will be seen to be usable in a variety of different applications for effectively mixing of flow media and an additive into a highly diffused homogeneous state.
  • the disclosed construction not only provides for such mixing in an efficient fashion but is suited to be incorporated in the impeller blades in a particularly compact design for direct dispersion across the flow path of the media to be treated.
  • the additive diffusor is quick and easy to maintain for extended reliable performance under demanding conditions.
  • an additive diffusor comprising a dispersion outlet carried by the impeller blade, an additive supply source, passage means in the rotor communicating the dispersion outlet with the additive supply source for dispersion of an additive into the flow passageway, and an additive control in the passage means for controlling additive flow, the additive control being movable between a first position normally blocking additive flow and a second position permitting additive flow through the passage means, the additive control being movable from said first position into said second position responsive to rotor rotation.
  • an accumulator chamber is formed in the housing in circumferentially extending relation about the rotor for communication with the passage means, and wherein an additive collection ring is received within the accumulator chamber and mounted on the rotor for rotation therewith, the additive collection ring having openings formed therein in communication with the additive control in the passage means and radially outwardly directed vanes integrally formed on the ring in overlying relation to the openings in the additive collection ring and facing in the direction of rotor rotation for collecting and guiding additive from the accumulator chamber through said openings to the additive control during rotor rotation.
  • impeller blade includes a downstream trailing edge projecting radially inwardly from the inside wall of the rotor, the downstream trailing edge of the blade being of sufficient thickness to create a relatively low pressure region in the passageway of the rotor in downstream adjacent relation to the trailing edge of the blade upon rotor rotation, and wherein the dispersion outlet is located in said downstream trailing edge of the blade to provide a suction force facilitating additive diffusion into the rotor flow passageway upon rotor rotation.
  • the rotor includes a plurality of impeller blades each mounted on and projecting radially inwardly from the inside wall of the rotor, the blades being of substantially identical construction and spaced apart on the rotor in a helical, generally symmetrical arrangement about its major longitudinal axis, and wherein each of the blades includes a common manifold formed in the blade which common manifold serves as a part of said passage means for additive dispersion in a fan-like continuous sweeping action in the flow passageway upon rotation of the rotor.
  • the passage means includes a valve chamber and inlet and outlet ports to the valve chamber formed in the rotor adjacent a root of the impeller blade, the inlet port being in communication with the additive supply source, wherein a valve seat surrounds the outlet port, the outlet port commu nicating with the dispersion outlet, and wherein the additive control includes a ball check valve biased in a generally radial direction extending inwardly toward a rotational axis of the rotor and toward a normally closed first position in engagement with said valve seat.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Accessories For Mixers (AREA)
US28067572 1972-08-14 1972-08-14 Additive diffusor Expired - Lifetime US3862747A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US28067572 US3862747A (en) 1972-08-14 1972-08-14 Additive diffusor
GB3646673A GB1390340A (en) 1972-08-14 1973-07-31 Additive supply apparatus
JP9010273A JPS4959349A (show.php) 1972-08-14 1973-08-13
DE19732340924 DE2340924A1 (de) 1972-08-14 1973-08-13 Diffusor fuer zusatzstoffe
IT2785473A IT992950B (it) 1972-08-14 1973-08-14 Diffusore per la dispersione di un mezzo fluido in scorrimento
FR7330110A FR2196190B3 (show.php) 1972-08-14 1973-08-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28067572 US3862747A (en) 1972-08-14 1972-08-14 Additive diffusor

Publications (1)

Publication Number Publication Date
US3862747A true US3862747A (en) 1975-01-28

Family

ID=23074114

Family Applications (1)

Application Number Title Priority Date Filing Date
US28067572 Expired - Lifetime US3862747A (en) 1972-08-14 1972-08-14 Additive diffusor

Country Status (6)

Country Link
US (1) US3862747A (show.php)
JP (1) JPS4959349A (show.php)
DE (1) DE2340924A1 (show.php)
FR (1) FR2196190B3 (show.php)
GB (1) GB1390340A (show.php)
IT (1) IT992950B (show.php)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus
US4802872A (en) * 1986-09-05 1989-02-07 Robert Stanton Regulated aeration of gases exhausting through a propeller
US5620250A (en) * 1996-03-05 1997-04-15 Pro-Quip, Inc. Jet mixer having a self-centering liquid bearing hub arrangement
US5879130A (en) * 1996-10-17 1999-03-09 Voith Hydro, Inc. Aeration through runner
US6155783A (en) * 1998-05-20 2000-12-05 Voith Siemens Hydro Power Generation, Inc. Hollow blade for hydraulic turbine or pump
US6524063B1 (en) 1996-10-17 2003-02-25 Voith Siemens Hydro Power Generartion, Inc. Hydraulic turbine for enhancing the level of dissolved gas in water
US20060174632A1 (en) * 2005-01-14 2006-08-10 Snecma Air bleed device on a machine stator pivoting blade

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62117623A (ja) * 1985-11-18 1987-05-29 Inoue Seisakusho:Kk インラインミキサ−

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689173A (en) * 1970-12-08 1972-09-05 Randolph J Morton Jet propelled motor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3689173A (en) * 1970-12-08 1972-09-05 Randolph J Morton Jet propelled motor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4780051A (en) * 1985-05-23 1988-10-25 Voith Hydro, Inc. Hydraulic turbine aeration apparatus
US4802872A (en) * 1986-09-05 1989-02-07 Robert Stanton Regulated aeration of gases exhausting through a propeller
US5620250A (en) * 1996-03-05 1997-04-15 Pro-Quip, Inc. Jet mixer having a self-centering liquid bearing hub arrangement
US6095749A (en) * 1996-10-17 2000-08-01 Voith Hydro, Inc. Hydraulic turbine for enhancing the level of dissolved gas in water
US5896657A (en) * 1996-10-17 1999-04-27 Voith Hydro, Inc. Method of making a turbine blade
US5924842A (en) * 1996-10-17 1999-07-20 Voith Hydro, Inc. Hydraulic turbine for enhancing the level of dissolved gas in water
US5879130A (en) * 1996-10-17 1999-03-09 Voith Hydro, Inc. Aeration through runner
US6247893B1 (en) 1996-10-17 2001-06-19 Voith Siemens Hydro Power Generation, Inc. Hydraulic turbine for enhancing the level of dissolved gas in water
US6524063B1 (en) 1996-10-17 2003-02-25 Voith Siemens Hydro Power Generartion, Inc. Hydraulic turbine for enhancing the level of dissolved gas in water
US6155783A (en) * 1998-05-20 2000-12-05 Voith Siemens Hydro Power Generation, Inc. Hollow blade for hydraulic turbine or pump
US6454533B2 (en) 1998-05-20 2002-09-24 Voith Siemens Hydro Power Generation Inc. Hollow blade for hydraulic turbine or pump
US20060174632A1 (en) * 2005-01-14 2006-08-10 Snecma Air bleed device on a machine stator pivoting blade
US7845901B2 (en) * 2005-01-14 2010-12-07 Snecma Air bleed device on a machine stator pivoting blade

Also Published As

Publication number Publication date
DE2340924A1 (de) 1974-02-28
JPS4959349A (show.php) 1974-06-08
FR2196190A1 (show.php) 1974-03-15
IT992950B (it) 1975-09-30
FR2196190B3 (show.php) 1976-07-30
GB1390340A (en) 1975-04-09

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AIRSONIC INTERNATIONAL, INC., 211 COMMON WAY, JUPI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:RICHTER HARVEY E.;REEL/FRAME:004433/0070

Effective date: 19830728

Owner name: AIRSONIC INTERNATIONAL, INC., A CORP OF FLORIDA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:RICHLER HARVEY E.;REEL/FRAME:004433/0072

Effective date: 19830728