US3347534A - Solids flow equalizer - Google Patents

Solids flow equalizer Download PDF

Info

Publication number
US3347534A
US3347534A US515319A US51531965A US3347534A US 3347534 A US3347534 A US 3347534A US 515319 A US515319 A US 515319A US 51531965 A US51531965 A US 51531965A US 3347534 A US3347534 A US 3347534A
Authority
US
United States
Prior art keywords
flow
collector
solids
restrictor
inlets
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
US515319A
Other languages
English (en)
Inventor
James E Dawson
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.)
YOUNG MACHINERY CO Inc
Original Assignee
YOUNG MACHINERY CO Inc
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 YOUNG MACHINERY CO Inc filed Critical YOUNG MACHINERY CO Inc
Priority to US515319A priority Critical patent/US3347534A/en
Priority to BE698529D priority patent/BE698529A/xx
Application granted granted Critical
Publication of US3347534A publication Critical patent/US3347534A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/80—Falling particle mixers, e.g. with repeated agitation along a vertical axis
    • B01F25/82—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles
    • B01F25/821—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles by means of conduits having inlet openings at different levels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/80—Falling particle mixers, e.g. with repeated agitation along a vertical axis
    • B01F25/82—Falling particle mixers, e.g. with repeated agitation along a vertical axis uniting flows of material taken from different parts of a receptacle or from a set of different receptacles
    • B01F25/823—Flow collectors therefor
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87571—Multiple inlet with single outlet
    • Y10T137/87652—With means to promote mixing or combining of plural fluids
    • Y10T137/8766—With selectively operated flow control means

Definitions

  • a solids flow equalizer particularly adapted for use with blending apparatus utilizing gravimetric flow of solids including a collector member having a plurality of inlets communicating with the blending apparatus and an outlet, and a flow restrictor disposed within the collector member.
  • the fiow restrictor is positioned within the collector member between the inlets and outlet to equalize the flow of material introduced into the collector member from the plurality of inlets, and is cooperable with the collector member to prevent cross flow of material between the inlets.
  • This invention relates to an apparatus for blending particulate solids, and more particularly to an apparatus for combining and equalizing a plurality of streams of particulate solids in gravimetric flow.
  • a collector means for the plurality of conduits withdrawing solids from the elevated reservoir which generally includes a housing having a plurality of inlets communicating with the plurality of conduits, a single outlet through which the recombined solids are discharged, and a flow restrictor disposed within the housing which acts to equalize the flow of solids from the plurality of conduits.
  • a collector means functions as a flow equalizer for the various streams of solids withdrawn from the elevated reservoir and generally is constructed as disclosed in US. Patent No. 3,208,737.
  • the second stage of operation consists of the with 3,347,534 Patented Oct. 17, 1967 drawal of the solids from the collector housing at a common flow rate. This is accomplished by permitting the flow of solids through the throttling interspace between the collector housing side wall and the restrictor at a rate less than that of free fall.
  • the collector housing constantly is filled with particulate solids below the flow restrictor, except in the regions between the sloping limits of solid aggregate deposited around the entire periphery of the underside of the restrictor. Under such conditions, there is obtained equalized solids flow originating at the periphery orifice consisting of the collectorrestrictor interspace and terminating in a common solids discharge through the outlet opening.
  • Another object of this invention is to provide an improved solids flow stabilizer which will permit the Withdrawal of combined particulate solids at equal rates.
  • a further object of this invention is to provide an improved solids flow equalizer which will eliminate reverse flow of particulate solids in the plurality of conduits introducing the particulate solids into the collector means.
  • a still further object of this invention is to provide an improved solids flow equalizer including a flow restrictorcombining of the plurality of streams of particulate solids in the region between the flow restrictor and the collector housing.
  • Another object of the invention is to provide an improved solids flow equalizer of the type including a collector housing and a flow restrictor disposed within the housing, wherein the cross flow of particulate solids in the region between the flow restrictor and the collector housing tending to impair the introduction of material into the collector housing, is eliminated.
  • FIGURE 1 is a top plan view of an embodiment of the invention.
  • FIGURE 2 is a cross-sectional view taken along line 2-2 in FIGURE 1, having a portion thereof broken away.
  • the present invention relates to a solids fiow equalizer generally comprising a collector member having a plurality of inlets for introducing particulate solids therein and at least one outlet for discharging the solids therefrom, the inlets being spaced equidistantly circumferentially relative to and equidistantly from the vertical centerline of the collector member, the collector member having a top horizontal wall, a flow restrictor disposed in the collector member between the inlet and outlet openings, having a frusto-conically shaped configuration including an enlarged upper wall disposed adjacent the top horizontal wall of the collector member in sufllcient proximity to provide a restriction to prevent the cross flow of material in the collector member between the inlets, and a frusto-conically shaped wall positioned to intercept material introduced into the collector member in gravimetrie flow.
  • the inlets are provided in the top horizontal wall of the collector member
  • the collector member includes, an upper vertically disposed cylindrical section and a lower inverted frusto-conically shaped section having the discharge outlet disposed axially thereof, a plurality of conduits secured to the top wall of the collector member communieating with the inlets, each inclined at the same angle relative to the horizontal to direct material into the collector member so that it impinges onthe conical sidewall of the flow restrictor, the flow restrictor is disposed concentrically relative to thevertical axis of the collector member, the diameter of the upper edge of the flow restrictor is slightly less than the inside diameter of the inlets in the top horizontal wall of.
  • the outside diameter of the lower edge of the flow restrictor is slightly larger. than the outside diameter of the inlets, and the flow restrictor is vertically adjustable within a limited range.
  • the height of the flow restrictor is substantially equal to the height of the upper vertically disposed cylindrical section of the collector member and the angles of inclination of the conduits, the conical side wall of the flow restrictor and the conical section of the collector member, are in excess of the angle, of repose of the particulate solids processed through the flow equalizer.
  • the embodiment includes a collector housing member 10, a plurality of conduits 11, connected to the housing member, and a flow restrictor 12 disposed within the housing member.
  • the housing member includes an upper vertical cylindrical section 13, having an upper peripheral flange 14, and a lower inverted frustoconically shaped section 15.
  • the section 15 includes a cylindrical lower end portion 16, providing an axially disposed lower discharge opening 17.
  • a peripheral bolt flange 18 is formed around the lower end of the end portion 16.
  • the upper end of the housing member is closed by a eirculartop wall member 19, which is seated on the peripheral flange 14 and is rigidly secured thereto by suitable fastening means.
  • the angle of inclination of t the conically shaped section 15 is at least equal and preferably in excess of the angle of repose of the particulate solids processed through the equalizer.
  • the height of the cylindrical section 13 is equal to or slightly greater than the height of the flow restrictor 12.
  • the conduits 11 may consist of any suitable number, and are equidistantly circumferentially spaced relative to and equidistant from the vertical axis of the housing member.
  • the inlet openings 20 of each conduit communicating with the interior of the collector housing have the same cross-sectional area.
  • the conduits with the exception of conduit 21 are inclined inwardly and downwardly at the same angle, so that material intro-,
  • the angle of inclination of the conduits 11 is at least equal and preferably in excess of the angle of repose of the particulate solids processed through the equalizer.
  • the conduits 11 are provided with upper vertical sections, having inlets located at a plurality of points spaced in a regular peripheral and longitudinal pattern around the exterior of an elevated solids reservoir for withdrawing particulate solids therefrom.
  • the conduit 21 is provided with an axially disposed upper section connected to the solids reservoir for withdrawing material from the axially disposed lo'wer end thereof.
  • the conduits 11 are adapted to function in the same manner as the conduits described in connection withthe equalizer disclosed .in U.S. Patent No.
  • Theflow restrictor 12 has a frusto-conically shapedcon figuration including a horizontal upperwall 22 and an inclined side wall 23.
  • the upper wall 22 has an enlarged area and a diameter slightly less thanthe inner diameter of the inlet openings 20 in the top wall 19 of the housing member.
  • the diameter of the lower edge of the flow restrictor has a diameter slightly greater than the outside diameter of the inlet openings 20, so that upon vertical.
  • the diameter of the lower end of the flow restrictor is smaller than the diameter of the cylindrical section 13 of the collector member, so that when the flow restrictor is adjusted vertically within a limited range, the annular horizontal. area between the lower edge of the flow restrictor and the side wall of the collector housing can be varied to provide a throttling or valving action on the particulate solids flowing. through this collector-restrictor interspace.
  • the embodiment as illustrated in the drawing is adapted to function in a manner similar to the equalizer illustrated in U.S. Patent No. 3,208,737.
  • Particulate solids Withdrawn from the elevated reservoir flow through the conduits 11 and are introduced into the upper. region of the collector housing through the inlet openings 20.
  • the proximity of the upper wall 22 of the flow restrictor relative to the top wall 19 of the collector housing acts as a restriction to prevent the cross flow of material introduced into the upper region of the collector housing.
  • This essentially eliminates reverse flow in the conduits 11 of either particulate solids or entrapped air.
  • the elimination of cross flow permits the flow of particulate solids in the upper region of the collectorv housing between the conical side wall of the flow restrictor and the top wall of the collector housing, to attain a state of equilibrium.
  • particulate solids in the upper region of the collector housing flow at an equal rate through the collectorrestrictor interspace and flow downwardly to be combined and discharged through the opening 17 in the manner as previously described.
  • the particulate solids discharged through opening 17 eitherv can be recycled through the equalizer to achieve more intimate blending or can be drawn off as a finished product.
  • the flow restrictor 12 can be adjusted vertically to con trol the flow rate of the material passing through the collector-restrictor interspace and adjusted according to the nature of the particulate solids being processed, to
  • the provision of the upper .wall 22 of the flow re-' strictor, having a relatively large area, which can be moved adjacent thetop wall 19 of the connector housing, between the inlet openings 20 has been found to provide a suflicient restriction to eliminate cross flows of solids introduced into the collectorhousing.
  • the solids thereby are permitted to be introduced into the upper region of the collector housing and immediately attain a state of equilibrium in traversing the region.
  • the solids flow are equalized in the upper region and traverse through the restrictor-collector housing interspace at a common flow rate. In the lower region of the collector housing, the solids are combined and discharged through the bottom outlet.
  • a solids flow equalizer comprising a collector member having a top horizontal wall including a plurality of inlets for introducing material therein and an outlet for discharging material therefrom, said inlets being spaced circumferentially relative to and equidistantly from the vertical centerline of said collector member, a flow restrictor disposed in said collector member between said inlet and outlet openings, said flow restrictor having a frustoconically shaped configuration including an upper wall disposed adjacent the top wall of said collector member in sufficient proximity to prevent cross flow of material in said collector member between said inlets, and a frustoconically shaped wall positioned to intercept material introduced into said collect-or member, said flow restrictor being disposed concentrically relative to the vertical centerline of said collector member, the diameter of the upper edge of said flow restrictor being slightly less than the inside diameter of the inlets in the top horizontal wall of the collector member, the outside diameter of the lower edge of the restrictor being slightly larger than the outside diameter of said inlets and the flow restrictor being vertically adjustable within a limited
  • a solids flow equalizer according to claim 1 including a plurality of conduits secured to the top horizontal wall of the collector member, communicating with said inlets, each inclined at the same angle relative to the horizontal to direct material into the collector member so that the material impinges upon the conical wall of the fiow restrictor.
  • a solids flow equalizer comprising a collector member, said collector member having a plurality of inlets for introducing material therein and an outlet for discharging material therefrom, said inlets being spaced circumferentially relative to and equidistantly from a centerline of said collector member, said collector member having a portion thereof disposed between said inlets, a flow restrictor disposed in said collector member, said flow restrictor being disposed in said collector member for intercepting solids introduced into said collector member through said inlets and said restrictor member having a portion thereof cooperable with said collector portion to prevent cross flow of material in said collector member between said inlets.
  • a solids flow equalizer comprising a collector member, said collector member having a plurality of inlets for introducing material therein and at least one outlet for discharging material therefrom, said inlets being spaced circumferentially relative to and equidistantly from a centerline of said collector member, said collector member having a first portion thereof disposed between said inlets, a flow restrictor disposed in said collector member adjustable along said centerline, said flow restrictor being disposed in said collector member for intercepting solids introduced into said collector member through said inlets, said flow restrictor having a first portion thereof operable With said first collector portion to prevent cross flow of material in said collector member between said inlets, said collector member having a second portion disposed between said inlets and said outlet and said restrictor member having a second portion thereof cooperable with said second portion of said collector member when said restrictor member is adjusted along said centerline to vary the opening between said restrictor member and said collector member thereby regulating the flow of material from said inlets to said outlet of said collector member.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
US515319A 1965-12-21 1965-12-21 Solids flow equalizer Expired - Lifetime US3347534A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US515319A US3347534A (en) 1965-12-21 1965-12-21 Solids flow equalizer
BE698529D BE698529A (enrdf_load_html_response) 1965-12-21 1967-05-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US515319A US3347534A (en) 1965-12-21 1965-12-21 Solids flow equalizer

Publications (1)

Publication Number Publication Date
US3347534A true US3347534A (en) 1967-10-17

Family

ID=24050863

Family Applications (1)

Application Number Title Priority Date Filing Date
US515319A Expired - Lifetime US3347534A (en) 1965-12-21 1965-12-21 Solids flow equalizer

Country Status (2)

Country Link
US (1) US3347534A (enrdf_load_html_response)
BE (1) BE698529A (enrdf_load_html_response)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448968A (en) * 1967-12-04 1969-06-10 Henry T Young Solids flow collector
US4228822A (en) * 1978-09-11 1980-10-21 Technovators, Inc. Stream throttle
US5417255A (en) * 1993-09-16 1995-05-23 Sanfilippo; James J. Gas flushing apparatus and method
US5617705A (en) * 1993-09-16 1997-04-08 Sanfilippo; James J. System and method for sealing containers
US5816024A (en) * 1996-05-07 1998-10-06 Jescorp, Inc. Apparatus and method for exposing product to a controlled environment
US5911249A (en) * 1997-03-13 1999-06-15 Jescorp, Inc. Gassing rail apparatus and method
US5961000A (en) * 1996-11-14 1999-10-05 Sanfilippo; James J. System and method for filling and sealing containers in controlled environments
US6032438A (en) * 1993-09-16 2000-03-07 Sanfilippo; James J. Apparatus and method for replacing environment within containers with a controlled environment
US6202388B1 (en) 1998-11-06 2001-03-20 Jescorp, Inc. Controlled environment sealing apparatus and method
US20030168107A1 (en) * 1999-06-18 2003-09-11 Danfoss A/S Flow cell having endless loop manifold

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208737A (en) * 1963-11-01 1965-09-28 Du Pont Solids flow equalizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208737A (en) * 1963-11-01 1965-09-28 Du Pont Solids flow equalizer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448968A (en) * 1967-12-04 1969-06-10 Henry T Young Solids flow collector
US4228822A (en) * 1978-09-11 1980-10-21 Technovators, Inc. Stream throttle
US5417255A (en) * 1993-09-16 1995-05-23 Sanfilippo; James J. Gas flushing apparatus and method
US5617705A (en) * 1993-09-16 1997-04-08 Sanfilippo; James J. System and method for sealing containers
US5916110A (en) * 1993-09-16 1999-06-29 Sanfilippo; James J. System and method for sealing containers
US6032438A (en) * 1993-09-16 2000-03-07 Sanfilippo; James J. Apparatus and method for replacing environment within containers with a controlled environment
US5816024A (en) * 1996-05-07 1998-10-06 Jescorp, Inc. Apparatus and method for exposing product to a controlled environment
US5961000A (en) * 1996-11-14 1999-10-05 Sanfilippo; James J. System and method for filling and sealing containers in controlled environments
US5911249A (en) * 1997-03-13 1999-06-15 Jescorp, Inc. Gassing rail apparatus and method
US6202388B1 (en) 1998-11-06 2001-03-20 Jescorp, Inc. Controlled environment sealing apparatus and method
US20030168107A1 (en) * 1999-06-18 2003-09-11 Danfoss A/S Flow cell having endless loop manifold
US6901956B2 (en) * 1999-06-18 2005-06-07 Danfoss A/S Flow cell having endless loop manifold

Also Published As

Publication number Publication date
BE698529A (enrdf_load_html_response) 1967-11-03

Similar Documents

Publication Publication Date Title
US3347534A (en) Solids flow equalizer
AT243721B (de) Vorrichtung zum Sortieren oder Klassieren fester, körniger Stoffe
US3233981A (en) Apparatus for contacting dissimilar phases
US3648985A (en) Blending apparatus
US1980522A (en) Apparatus for the treatment of gases
US3232430A (en) Classification selectors for solids in gaseous suspension
US3258252A (en) Apparatus for blending free-flowing granular materials
US2998137A (en) Centrifugal screen
CH653430A5 (de) Drallauslass mit einem aussenrohr und einem darin koaxial angeordneten kernrohr.
US2418821A (en) Plural stage hydraulic classifier
US1866638A (en) Centrifugal separator
US2310649A (en) Evaporating apparatus
GB1020650A (en) Solids flow equalizer-blender
US3332853A (en) Apparatus for effecting dense phase fluidisation of particulate material
US3456922A (en) Blending
US3415373A (en) Particle size classification method and apparatus
US3237767A (en) Method and apparatus for the separation of solids
US1669820A (en) Method and means for effecting the separation of subdivided materials
US2960226A (en) Method and apparatus for wet classification of solids
GB996881A (en) Improvements in or relating to solid material sorting apparatus
US3870493A (en) Apparatus for separating liquid from a liquid containing gas flow
US4159941A (en) Separator
US3448968A (en) Solids flow collector
US2332224A (en) Gas and liquid contact apparatus
DE1182161B (de) Zentrifugalflotationszelle