US1815409A - Centrifugal apparatus - Google Patents

Centrifugal apparatus Download PDF

Info

Publication number
US1815409A
US1815409A US254448A US25444828A US1815409A US 1815409 A US1815409 A US 1815409A US 254448 A US254448 A US 254448A US 25444828 A US25444828 A US 25444828A US 1815409 A US1815409 A US 1815409A
Authority
US
United States
Prior art keywords
bowls
bowl
solids
slide
annular
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
US254448A
Other languages
English (en)
Inventor
Knuttel Ernst
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1815409A publication Critical patent/US1815409A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • My invention relates to centrifugal apparatus and more particularly to apparatus for the continuous treatment of liquids containin suspended matter, including pulps, 5; colloi s and the like; Centrifugal apparatus of various types have already been proposed forthe treatment of such liquids, for instance apparatus having perforated or solid cylindrical, tapering or lenticular 10, bowls.
  • various means are provided for separating the solids from the wall of the bowls, for instance, scrapers, means for displacing the bowls or part of their walls, or slides and valves of other kinds at the periphery of the bowls.
  • scrapers means for displacing the bowls or part of their walls, or slides and valves of other kinds at the periphery of the bowls.
  • only unperforated bowls can be employed.
  • a particularly diflicult problem is the centrifuging of pulps having suspended therein very finely subdivided solidsof exceptional density, as such solids stick very firmly to the walls of the bowl and are diflicult to remove by scrapers.
  • the solution of the problem by displacing part of a tapering or lenticular bowl in order to eject the solids is not satisfactory on account of the excessive thrust exerted on the parts controllingthe displacingmechanism which may become prohibitive in machines of larger size. Discharging the solids by several slides or valves at the periphery is primitive and unreliable, apart from the fact that hard and sharp solids cause considerable'wear of these parts which interferes with the operation of the apparatus.
  • a centrifugal apparatus which is suitable for the treatment of any liquidscontaining suspended solids, but is particularly designed for liquids containing dense and very fine solids.
  • I provide a bowl having unperforated walls, a peripheral annular discharge slot of invariable width and an annular valve which is adapted to close the slot so that the separated solids act as the packing.
  • the bowl is of lenticular cross-section and constituted by two sections definin between them a peripheral slot of. invaria 1e width, and the annular valve or slide is so designed that the centrifugal action will exert on it a component tending to open the valve in order to facilitate the opening thereof.
  • I may arrange a plurality of bowls on a common shaft which are operated simultaneously or preferably alternately, by duplicating the annular valve and controlling a pair of bowls alternately by the two valves.
  • the liquid to be treated may be introduced by means of a stationary tube arranged coaxially'within the hollow driving shaft of the apparatus.
  • a is a hollow shaft, 6 and a are centrifugal bowls keyed on the shaft each comprising an upper section (Z and e and a lower section e and d,
  • Peripheral discharge slots f and f are constituted by parallel faces or edges m and u on the parts (I and e and i and 'v on the parts 6 and d, respectively.
  • a beveled face 8 is formed adjacent the parallel face on of the upper part a? and a peripheral rib 'w extends downwardly from the beveled part so as to form an annular peripheral recess 7:. on the part d.
  • Outwardly extending flanges i and w are formed adjacent the parallel edges u and z" of the parts e and 6, respectively, the flange 5 extending downwardly and the flange wextending upwardly from the parallel faces at and 2'', re-
  • z h is a peripheral recess on the lower part d of the bowl 0 which is constituted by an upwardly extending rib izw': and a short beveled face adjacent to parallel edge '0. '5 ⁇ ? Means are provided for varying the area,
  • the upper cup g is equipped with a peripheral flange 3 extending into the recess h of the part d, z is a beveled face extending downwardly from the flange and z is a recess formed below the beveled face for the reception of the flange 2' on the part e.
  • the lower cup 9 is formed with a downwardly projecting flange y, mating with the recess h, a beveled face 2" and a recess 2 mating with the upwardly projecting flan e m.
  • T e beveled faces 2 and 2" are provided on the valves or cups for the purpose specified, to wit, generating an axial component of the centrifugal force for facilitating the lifting of the valves.
  • t is a stationary tube inserted coaxially and with some clearance within the hollow shaft a
  • j is a central partition in the tube t by Which it is subdivided into two semi-circular areas
  • Z is an inclined deflector arranged at the level of the central plane of the upper bowl I; at one side of the central partition j, the wall of the tube 25 being partly cut away at 0 above the deflector
  • n is an annulus inserted in the hollow shaft a and surrounding the tube t.
  • the annulus n comprises two faces flaring toward the tube if from either side of perforations p in the hollow shaft a.
  • g is a recess formed in the bosses of the parts d, e adjacent the perforations p, and r, 1" are pipes extending downwardly into the part 6 from the recess Similar means indicated by the same letters but indexed Z etc., are provided for the lower part (1 of the lower bowl 0.
  • Anysuitable means can be provided for automatically regulating the flow of liquids in time with the reversing of the slide 9 so that liquid is only supplied to that bowl or to those bowls which has, or have, been closed by the valve or valves 9 and g.
  • a bowl in two sections which define between them a substantially lenticular annular chamber having a peripheral discharge slot of fixed width, and an axially displaceable annular slide adapted to substantially close said slot; the said bowl sections being provided with annular flanges and recesses adapted to cooperate with corresponding recesses and flanges on said displaceable slide, whereby upon closure of said discharge slot by said displaceable slide the solids tend to accumulate between the said flanges and recesses to prevent the discharge of material through said slot.
  • a bowl in two sections which define between them an annular chamber having a peripheral discharge slot of fixed width; one of the edges of said discharge slot being flanged outwardly and the other edge being provided with a peripheral recess, an axially displaceable annular slide provided with an annular recess and a peripheral flange; the said recess and said peripheral flange of said slide being adapted to engage, respectively, said flange and said peripheral recess of said bowl sections with a slight clearance; whereby on operation of the device the said discharge slot becomes closed by solids which collect in said clearance.
  • auxiliary packing means is provided within the said peripheral recesses to close the space between said flanges and said recesses.

Landscapes

  • Centrifugal Separators (AREA)
  • Paper (AREA)
US254448A 1927-02-22 1928-02-15 Centrifugal apparatus Expired - Lifetime US1815409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE285836X 1927-02-22

Publications (1)

Publication Number Publication Date
US1815409A true US1815409A (en) 1931-07-21

Family

ID=6058931

Family Applications (1)

Application Number Title Priority Date Filing Date
US254448A Expired - Lifetime US1815409A (en) 1927-02-22 1928-02-15 Centrifugal apparatus

Country Status (4)

Country Link
US (1) US1815409A (fr)
BE (1) BE349062A (fr)
FR (1) FR649325A (fr)
GB (1) GB285836A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682992A (en) * 1951-11-02 1954-07-06 Int Harvester Co Power washing cream separator and threaded drive member therefor
US5656154A (en) * 1995-06-07 1997-08-12 Organ, Inc. Method and apparatus for separating a fluid into components and for washing a material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682992A (en) * 1951-11-02 1954-07-06 Int Harvester Co Power washing cream separator and threaded drive member therefor
US5656154A (en) * 1995-06-07 1997-08-12 Organ, Inc. Method and apparatus for separating a fluid into components and for washing a material
US5770069A (en) * 1995-06-07 1998-06-23 Organ, Inc. Collapsible container for holding a fluid during a centrifugation operation

Also Published As

Publication number Publication date
GB285836A (en) 1928-06-21
FR649325A (fr) 1928-12-20
BE349062A (fr)

Similar Documents

Publication Publication Date Title
KR0136369B1 (ko) 액체로부터 이보다 큰 밀도를 갖고 이에 산포된 고체를 제거하는 방법 및 설비
US2600372A (en) Centrifugal separator
US2622794A (en) Centrifugal separator
US2138468A (en) Centrifugal separator
US2758784A (en) Centrifugal countercurrent exchange device
US1882389A (en) Centrifugal separator
US2878995A (en) Centrifuge for liquids
US2178547A (en) Centrifugal separator
US2435623A (en) Centrifuges for separating from a liquid matters suspended or emulgated therein
US2370353A (en) Centrifugal separator or clarifier
US1815409A (en) Centrifugal apparatus
JPS5933424B2 (ja) 遠心分離機
US2232770A (en) Centrifugal machine
JPS5959261A (ja) エネルギ回復遠心機
US1710316A (en) Centrifugal machine
US2593278A (en) Centrifuge for separating a liquid from solid material
US1747155A (en) Separating apparatus and method
US1718547A (en) Centrifugal separator
US3081028A (en) Periodic sludge discharging centrifugal drum separators
JP4153138B2 (ja) 遠心分離装置
US1931193A (en) Centrifugal separator
US1927822A (en) Centrifuge apparatus
US1363572A (en) Emulsifier
US2485209A (en) Centrifuge with primary and secondary zones of separation and process therefor
US2512253A (en) Centrifugal separator