US2022814A - Centrifugal bowl for separating heavy sludge and solids from lighter liquids - Google Patents

Centrifugal bowl for separating heavy sludge and solids from lighter liquids Download PDF

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Publication number
US2022814A
US2022814A US691111A US69111133A US2022814A US 2022814 A US2022814 A US 2022814A US 691111 A US691111 A US 691111A US 69111133 A US69111133 A US 69111133A US 2022814 A US2022814 A US 2022814A
Authority
US
United States
Prior art keywords
bowl
outlet
valve
liquid
hollow member
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
US691111A
Other languages
English (en)
Inventor
George J Strezynski
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.)
De Laval Separator Co
Original Assignee
De Laval Separator Co
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
Priority to NL39653D priority Critical patent/NL39653C/xx
Application filed by De Laval Separator Co filed Critical De Laval Separator Co
Priority to US691111A priority patent/US2022814A/en
Priority to US69439833 priority patent/US2022815A/en
Priority to US700436A priority patent/US2022816A/en
Priority to US704482A priority patent/US2022817A/en
Priority to DEB166824D priority patent/DE625963C/de
Priority to GB27610/34A priority patent/GB423162A/en
Priority to FR780036D priority patent/FR780036A/fr
Application granted granted Critical
Publication of US2022814A publication Critical patent/US2022814A/en
Priority to US143289A priority patent/US2141025A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B04B1/16—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge with discharging outlets controlled by the rotational speed of the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • B04B1/16—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge with discharging outlets controlled by the rotational speed of the bowl
    • B04B1/18—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge with discharging outlets controlled by the rotational speed of the bowl controlled by the centrifugal force of an auxiliary liquid
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S494/00—Imperforate bowl: centrifugal separators
    • Y10S494/901—Imperforate bowl: centrifugal separators involving mixture containing oil

Definitions

  • My invention is an improvement in bowls for separating heavy sludges or solids from lighter liquids and discharging them through openings in the bowl wall.
  • the object of my invention is to provide, in a bowl with outlets at its maximum diameter for the escape of heavy sludge or slimy solids, simple and reliable means, which may be either automatic 'or under the control of the operator, for opening and for closing such outlets.
  • Figure 1 is a vertical section, a little at one side of the center, of a complete bowl.
  • Figure 2 is a similar section of a modification.
  • Figure 3 is an enlarged cross section of the sludge outlet valve.
  • a is a bowl shell having a top b and containing a tubular feed shaft c, a nest of separating discs d and a top disc e.
  • the outlet for heavy liquid is at f, for light liquid at g, and for sludge or slimy solids at 1:.
  • the bowl is supported and driven by a spindle i turning in a bearing 71.
  • the inlet for liquid to be treated is .through a tube It.
  • My automatic sludge outlet valve comprises a port at through the bowl wall, a valve seat m at the inner end of the port and an automatically operating floating valve therefor comprising a radially extending hollow body 0 having a pointed head n, the tip of which is adapted to engage the valve seat and through which tip is a small opening 1 throttled by a screw 1'.
  • the hollow valve body 0 is slidable radially and may be guided in any suitable manner, as by a tube p extending from near the bowl wall toward the center of rotation.
  • the end of tube 2 near the bowl center is closed by a plug s having a stem t that, by entering a hole in the back end wall of the valve body, guides the back end of the' valve body.
  • the front end of the valve body may be provided with lugs o to keep it spaced from the enclosing tube.
  • the back wall of the valve body is provided with orifices u. There may be any number of these outlets and valve bodies.
  • FIG. 2 there is shown, inside the tubular 5 shaft c, a hollow member forming a chamber 1: from the bottom of which lead tubes 10 each adapted to discharge liquid, through the hollow stem t of the plug 3, into the corresponding 1101- r low valve body 0.
  • a tube 1/ extending through 10 the center of the feed tube It provides means to feed liquid inside the chamber '0.
  • a deflector 2 around the tube 11 near its lower end prevents liquid fed through the tube It entering the chamber 12.
  • the radius from the center of the bowl to the inner end of the valve body 0 is less than that of the outlet f for heavy liquid and greater than that of the outlet g for light liquid.
  • this bowl is adapted 'for removal of any heavy slimy viscous material from a lighter liquid, such as footsf from the alkali treatment of vegetable oils, dirt from milk, waxes from oils, etc., I will describe its operation when removing from mineral oil the sludge formed by treating 25 such oil with strong acid.
  • a hollow member comprising a valve and positioned between said peripheral outlet and the axis of the bowl and having in the end thereof nearest said axis a fluid-admission opening, said member being movable outward to seat the valve and close communication between said outlet and the peripheral part of the bowl and movable inward to unseat the valve and open said communication, and means controlling the admission of liquid to and its discharge from said hollow member to thereby, by varying its weight, cause it to move into and out of position to close said outlet.
  • a hollow member comprising a valve and positioned between said peripheral outlet and the axis of the bowl and freely fioatable outward to seat the valve and close communication between said outlet and the peripheral part of the bowl and freely floatable inward to unseat the valve and open said communication, and means controlling the admission of liquid to said hollow member to cause it to move outward into position to close said outlet, there being a restricted passage in the outer end of said hollow member adapted to register with said orifice and permit leakage of liquid from said hollow member through said restricted passage and outlet when communication of said outlet with the peripheral part of the bowl is closed.
  • hollow member comprising a valve and positioned between said peripheral outlet and the axis of the bowl and freely fioatable outward to seat the valve and close communication between said outlet and the peripheral part of the bowl and freely floatable inward to unseat the valve and open said communication, means providing a channel adapted, unless closed by the accumulation of a predetermined quantity of sludge, to convey liquid from the separating space of the bowl into said hollow member and move it outward to seat the valve, and means allowing escape of liquid from said hollow member when the valve is seated, thereby causing it to be sufllciently lightened to move inward, unseat the 10 valve and allow excess sludge to escape through said outlet.
  • a hollow member comprising a valve and positioned between said peripheral outlet and the axis of the bowl and freely fioatable outward to seat the valve and close communication between said cut let and the peripheral part of the bowl and freely fioatable inward to unseat the valve and open said communication, means providing a channel adapted, unless closed by the accumulation of a predetermined quantity of sludge, to convey liquid from the separating space of the bowl into said hollow member andmove it outward to seat the valve, and means allowing escape of liquid from said hollow member when the valve is seated, thereby causing it to be sufficiently lightened to move inward, unseat the valve and allow excess sludge to escape through said outlet, said liquid escape means comprising a restricted passage in said valve adapted to register with said outlet when the valve is seated.
  • a centrifugal bowl provided with an outlet extending outwardly from and communicating with the peripheral space of the bowl, a radially extending floating hollow member having an opening communicating with the separating space of the bowl and movable radially 40 outward to close said outlet when weighted with a predetermined amount of liquid entering said opening from the separating space of the bowl, an element in the bowl whose outer edge is spaced from the bowl wall and over which said liquid is adapted to flow toward and into said opening in the hollow member and which shuts off such flow when the sludge accumulates to a depth suflicient to close the space between said element and the bowl wall, and means allowing escape of liquid from said hollow'member while it is in its outlet-closing position, thereby lightening it sufficiently to cause it to float radially inward, allow excess sludge to escape through said outlet and re-open communication between its said opening and the separating space of the bowl.
  • a centrifugal bowl provided with an outlet extending outwardly from and communicating with the peripheral space of the bowl, a hollow radially floating liquid-receiving member between said peripheral outlet and the axis of the bowl and having in the end nearest said axis a fluid-receiving opening, said member being adapted to move outward to close said outlet or inward to open it dependent on the weight of contained liquid, and means to cause flow of liquid into said hollow member when there is less than a predetermined quantity of peripherally accumulated sludge in the bowl and to shut off said flow when there is more than said predetermined quantity.
  • a valveseat at the inner end of said outlet, a tube with 76 its axis extending from near the bowl wall toward the center of rotation and within the tube a hollow member comprising at its outer end a f valve adapted to cooperate with said valve seat to close said outlet, there being a restricted port from inside the hollow member adapted to meet the outlet when the valve is seated, and means controlling the admission of liquid to said hollow member to vary thielquantity of liquid therein and thereby cause it to advance and recede and alternately seat and unseat said valve.
  • a centrifugal bowl provided with an .outlet extending outwardly from and communicating with the peripheral space of the bowl, a valve seat at the inner end of said outlet, a tube with its axis extending from near the bowl wall toward the center of rotation and within the tube a hollow member comprising at its outer end a valve adapted to cooperate with said valve seat to close said outlet, there being a restricted port from inside the hollow member adapted to meet the outlet when the valve is seated, there being a passage between said tube and hollow member through which liquid is'adapted to flow from the peripheral part of the bowl into the inner part of said hollow member, said passage adapted to be closed by accumulation within the bowl of a predetermined depth of sludge, thereby allowing outflow of liquid through said restricted port and outlet until the hollow member is sumciently lightened by loss of liquid to cause it to float inward, unseat the valve and allow escape of sludge until saidpassage is re-opened;
  • a floating hollow member having an opening in its inner end nearer to the axis of the bowl than the heavy liquid outlet and further from the axis of the bowl than the light liquid outlet, said opening communicating with the separating space of the bowl when the same is free of accumulated sludge, means adapted to cut off said communication when the sludge deposits on the bowl wall to a predetermined depth, and means allowing outflow of liquid from the hollow member when said communication is cut ofi, whereby said floating member will be held in an outer position except when sludge accumulates to a depth sufficient to close said communication and will then, by reason of loss of liquid, move inward, and a valve carried at the outer end of said floating member and adapted to close said outlet when the hollow member is held in its outer position and to open said outlet when said hollow
  • afloating hollow member communicating at its rear end with the separator space of the bowl, its length being such that its rear end is at a greater radial distance from the bowl axis than the lighter liquid outlet and at a less radial distance from the bowl axis than the heavier liquid outlet, said member adapted to receive lighter liquid from the separator space of the bowl through the rear end of said mem-- ber communicating with said separator space and to move outward and close said peripheral outlet and adapted to move inward and open said peripheral outlet upon escape from said member of lighter liquid, and means allowing escape of such liquid while said member is in its outer position.
  • a hol- 5 low member positioned between said peripheral outlet and the bowl axis and freely fioatable toward and from the axis of the bowl and comprising at its outer end a valve having a leakage orifice communicating with the interior of the hollow member, and means controlling the admission of liquid into said hollow member to thereby increase its weight and cause it to float outward and thereby seat the valve and close said outlet, the leakage of liquid through said valve lightening the weight of said member and causing it, after cessation of admission of liquid thereinto, to float inward and thereby unseat the valve and open said outlet.
  • a centrifugal bowl provided with an out- 20" let extending outwardly from and communicating with the peripheral space of the bowl, a holmunicating with the interior of the hollow member, and means controlling the admission of liquid into said hollow member to thereby increase its weight and cause it to float outward and thereby seat the valve and close said outlet, the leakage of liquid through the valve lightening the weight of said member and causing it, 3.- after cessation of admission of liquid thereinto, to float inward and thereby unseat the valve and open said outlet.
  • a centrifugal bowl for separating sludge from liquid, provided with an outlet extending outwardly from and communicating with the peripheral space of the bowl, a hollow member positioned between said peripheral outlet and the bowl axis and fioatable within a space communicating with the interior of the bowl near the 45 latters peripheral wall, said member having an opening affording communication with said space, said member comprising at its outer end a valve having a leakage orifice, the flow of liquid from the interior of the bowl through said space into the hollow member increasing the weight of said member and causing it to float outward and thereby seat the valve and close said outlet, the leakage of liquid through the valve lightening the weight of said member and causing it to 5.", float inward and thereby unseat the valve and open said outlet after sludge, accumulating adjacent the peripheral bowl wall, closes communication between the interior of the bowl and said space.
  • a centrifugal bowl for separating sludge and liquid, provided with an outlet through its peripheral wall, means providing a valve enfrom liquid, provided with an outlet through its peripheral wall, means providing a valve enclosure adapted to communicate with and receive liquid from the interior of the bowl, a hollow valve member floatable within said valve enclosure and movable outward to close said outlet and inward to open it dependent on the weight of liquid therein, means to admit liquid into said hollow member to thereby increase its weight and cause it to float outward and close said outlet, and means allowing escape of liquid from said hollow member to thereby decrease its weight and cause it to float inward and open said outlet.
  • a centrifugal bowl provided with an outlet extending outwardly from and communicating with the peripheral space of the bowl, a valve seat at the inner end of said outlet, a hollow member comprising at its outer end a valve adapted to cooperate with said valve seat to close said outlet, and an element in the bowl whose outer edge is spaced from the bowl wall and over which liquid is adapted to flow toward and into said hollow member and which shuts ofi said flow when sludge accumulates to a depth sufficient to close the space between said element and the bowl wall, there being a restricted port from inside said hollow member adapted to allow escape of liquid therefrom whereby said valve is caused to move inward and open said outlet when flow Y past said element is stopped and to move outward -and close said outlet when flow is resumed.
  • a centrifugal bowl provided with an outlet extending outwardly from and communicating with the peripheral space of the bowl and having a valve seat at its irmer end, a hollow member positioned between said peripheral outlet and the axis of the bowl and having in the end thereof nearest said axis a fluid admission opening and at the end thereof farthest from said axis a valve adapted on outward movement to cooperate with said seat and close communication between said outlet and the peripheral part of the bowl and on inward movement to open said communication, and means controlling the admission of liquid to and its discharge .from said hollow member to thereby cause outward and inward movement of the valve.
  • centrifugal bowl provided with outlets for respectively heavier and lighter separated liquids and a peripheral outlet for the heaviest separated constituent
  • a floating hollow member having an opening which communicates with the separating space of the bowl and which is positioned at a greater radial distance from the bowl axis than the lighter liquid outlet and at a less radial distance from the bowl axis than the heavier liquid outlet, said member being thus adapted to receive only lighter liquid from the separator space of the bowl and to move outward and close said peripheral outlet upon being filled with a predetermined weight of said lighter liquid and to move inward and open said peripheral outlet upon escape from said member of lighter liquid, and means allowing escape of such liquid while said member is in its outer position.

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  • Centrifugal Separators (AREA)
US691111A 1933-09-27 1933-09-27 Centrifugal bowl for separating heavy sludge and solids from lighter liquids Expired - Lifetime US2022814A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL39653D NL39653C (fr) 1933-09-27
US691111A US2022814A (en) 1933-09-27 1933-09-27 Centrifugal bowl for separating heavy sludge and solids from lighter liquids
US69439833 US2022815A (en) 1933-09-27 1933-10-20 Centrifugal bowl for separating heavy sludge and solids from lighter liquids
US700436A US2022816A (en) 1933-09-27 1933-12-01 Centrifugal bowl for separating heavy sludge and solids from lighter liquids
US704482A US2022817A (en) 1933-09-27 1933-12-29 Centrifugal bowl for separating heavy sludge and solids from lighter liquids
DEB166824D DE625963C (de) 1933-09-27 1934-09-14 In der Wand einer Schleudertrommel sitzende Auslassventile
GB27610/34A GB423162A (en) 1933-09-27 1934-09-26 Improvements in centrifugal bowl provided with sludge valves
FR780036D FR780036A (fr) 1933-09-27 1934-09-26 Bol de séparateur avec soupapes à boues
US143289A US2141025A (en) 1933-09-27 1937-05-18 Centrifugal bowl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US691111A US2022814A (en) 1933-09-27 1933-09-27 Centrifugal bowl for separating heavy sludge and solids from lighter liquids

Publications (1)

Publication Number Publication Date
US2022814A true US2022814A (en) 1935-12-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
US691111A Expired - Lifetime US2022814A (en) 1933-09-27 1933-09-27 Centrifugal bowl for separating heavy sludge and solids from lighter liquids

Country Status (4)

Country Link
US (1) US2022814A (fr)
FR (1) FR780036A (fr)
GB (1) GB423162A (fr)
NL (1) NL39653C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485209A (en) * 1943-07-16 1949-10-18 Sugar Creek Creamery Company Centrifuge with primary and secondary zones of separation and process therefor
EP2077144A1 (fr) * 2006-10-27 2009-07-08 Weihai Dengtong Purification Equipment Co., Ltd Dispositif de séparation liquide-liquide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE534386C2 (sv) 2009-10-29 2011-08-02 Alfa Laval Corp Ab Centrifugalseparator samt metod för separering av fasta partiklar
DE102017112553A1 (de) 2017-06-07 2018-12-13 Gea Mechanical Equipment Gmbh Verfahren zur Feststoffentleerung einer Zentrifuge

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485209A (en) * 1943-07-16 1949-10-18 Sugar Creek Creamery Company Centrifuge with primary and secondary zones of separation and process therefor
EP2077144A1 (fr) * 2006-10-27 2009-07-08 Weihai Dengtong Purification Equipment Co., Ltd Dispositif de séparation liquide-liquide
US20100059426A1 (en) * 2006-10-27 2010-03-11 Weihai Dengtong Purification Equipment Co., Ltd. Liquid-liquid separation device
US8231515B2 (en) * 2006-10-27 2012-07-31 Weihai Dengtong Purification Equipment Co., Ltd. Liquid-liquid separation device
EP2077144A4 (fr) * 2006-10-27 2013-01-16 Weihai Dengtong Purification Equipment Co Ltd Dispositif de séparation liquide-liquide

Also Published As

Publication number Publication date
GB423162A (en) 1935-01-25
FR780036A (fr) 1935-04-17
NL39653C (fr)

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