US2052156A - Rotary drum filter - Google Patents

Rotary drum filter Download PDF

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Publication number
US2052156A
US2052156A US732057A US73205734A US2052156A US 2052156 A US2052156 A US 2052156A US 732057 A US732057 A US 732057A US 73205734 A US73205734 A US 73205734A US 2052156 A US2052156 A US 2052156A
Authority
US
United States
Prior art keywords
drum
compartments
shoe
interior
ports
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
US732057A
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English (en)
Inventor
Frank W Young
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
Priority to US732057A priority Critical patent/US2052156A/en
Priority to GB3589/35A priority patent/GB432852A/en
Priority to DEY706D priority patent/DE667354C/de
Priority to FR785671D priority patent/FR785671A/fr
Application granted granted Critical
Publication of US2052156A publication Critical patent/US2052156A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B01D33/09—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors
    • 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
    • Y10T137/0753—Control by change of position or inertia of system
    • Y10T137/0923—By pendulum or swinging member

Definitions

  • M 'in general the object of this invention is to provide a continuous rotary drum lter in which I the network of piping within .the drum is elimlnated.
  • the object of the invention is I 30 the provision o! a drum for continuous filters, the
  • each port having associated with it a valve in the 35 form ofa counterbalanced gravity operated shoe suspended adjacent each of said ports.
  • a furtherobject of the invention is the provision of a drum having closed ends in which the iti-ate within the is substantially at the so same level as the pulp within the tank in which the drum rotates to thereby eliminate any buoyant eect of the y Y
  • the invention possesses other advantageous features, some oi which with the foregoing, will as be set forth in the following description where that form of the invention which has been selected for illustration inthe drawing accompanying and forming a part oi? the present spec/lrication is outlined in iuii. in said drawing, one 50 torni of the invention is shown, but it is to be understood that it is not ted to such form, since the invention as set iorth. in the claims may be embodied in a plurality o! forms.
  • Figure 1 is a side elevation partly in section of a rotary drum filter in which the objects of the invention are embodied.
  • Figure 2 ls a section taken on the line 2-2 of Fig. 1.
  • Figure 3 is an enlarged perspective View' of one 5 of the counterbalanced gravity operated valves used within the filter drum.
  • a drum l is rotatively disposed within a tank t by means of trunnions 5 10 and t, journaled in bearings 'l and t.
  • the trunnion 5 is hollow as clearly shown in Figure 1 and serves toestablish communication between the interior of drum l and a suitable vacuum pump (not shown) for subjecting the interior of the drum and its contents to sub-atmospheric pressure.
  • the trunnion 6 is closed by means of a plate t, and has'associated with it a gear train il which in turn is driven by means of a motor it carried by a suitable bracket formed on one end of the tank, and the bearing t.
  • the outer surface of the drum l is provided with independent filtrate compartments it, defined by the usual division strips it. Disposed over the division strips it is a supporting screen 25 it which in turn is covered by any suitable nlter ⁇ medium it.
  • a port il' is formed in the door of each compartment for the purpose of establishing communication between the' interior of each compartment and the interior of the drum i. Communication between the compartments i3 and the interior of the drum is controlled by means of a counterbalanced gravity operated valve as clearly shown in Figure 3, and'which consists of a fitting it provided at one end with a flange it and at its opposite end with brackets 2Iin which are formed bearings 22.
  • journaled in the bearings 22 is a shaft 23, to the central portion of which is secured an arcuate shoe or gate 2t, and tothe outer ends of which are se- 40 cured counterweights 25.
  • the radius of curvature of the arcuate shoe 2t is made complementary to the radius of curvature of the free ends 2t of the fitting it so that upon the relative rotation of the shoe 2t and the fitting it these mem- 45 bers will just clear each other. Under' actualoperating conditions the entire valve mechanism is wetted by the filtrate contained within thejdrum i, and therefore although there is some clearance between the shoe 2t and the tting i8 the 50 shoe 2t under these conditions eectively closes the free open end or port of the tting I8.
  • the fittings i8 are secured to the inner face of the drum l in registration with the port il by means oi the danse I9. It the 56 drum I is of relatively small diameter yor if the compartments i3 are relatively narrow, it is preferable to stagger the ports Il as shown in Figure 1.
  • the shoe 24 By adjusting the relative angular position oi.' the shoe 24 and the counterweights 25 (which may be done by suitable setscrews carried by the hubs of the counterweights the shoe 24 may be made to close the open ends oi' their associated ttings I8 during any particular point of the revolution of the drum i. ure 2 the valves in this instance are closed only on the upper side of the drum during the discharge period of the cycle.
  • Theitrant Within the tank 4 is carried at a level indicated by the line 21 and since the cake forming period should commence as soon as any given compartment is submerged within the filtrant, the valve associated with this compartment should be open Aor begin to open at this point, and should remain open during the entire cake forming period and during the cake drying period so that cake formation and drying may be effected under the inuence of sub-atmospheric pressure.
  • the counterweights 25 should of course be heavy enough to prevent any appreciable rotation of the shoe 24.
  • a drum for continuous filters provided on its outer surface with independent filtrate compartments; each filtrate compartment being provided with a. port communicating with the interior of the drum and with a gravity operated valve pivoted about an axis parallel with the axis of the drum and adapted to successively open and close said ports upon the rotation of the drum.
  • a drum for continuous filters provided on its outer surface with independent ltrate compartments each compartment having a port communicating with the interior of the drum and a As shown in Figcounterbalanced gravity operated shoe pivoted adjacent said drum about yan axis parallel with the axis of the drum, and in line with said ports so that each port is closed by its associated shoe once during each rotation of the drum.
  • a drum for continuous filters provided on its outer surface with independent filtrate compartments, each compartment having a port formed. in its oor communicating with the lnterior: of said drum, the centers of said ports lying in a lcommon plane; and a gravity operated shoe pivoted adjacent said ports about an axis parallel with the axis of the drum, and with its center lying in said common plane so that said ports are closed once during each rotation of the drum.
  • a drum for continuous lters provided on its outer surface with independent ltrate compartments, each compartment being provided with a port communicating with the interior of the drum; a gravity operated counterbalanced shoe pivoted adjacent each of said ports about an axis parallel within the axis of the drum and adapted to close its associated port upon relative motion therewith.
  • a filter comprising a closed ended drum provided with independent filtrate compartments and rotatably mounted within a tank; a port in each compartment communicating with the interior of the drum; sleeve ttings secured to the interior of said drum adjacent saidy ports and tatably secured to said sleeves and arranged in one position to register with and close the outer ends thereof; and counter weights associated With-said shoes for maintaining them in a predetermined position.
  • a rotary drum filter provided with independent ltrate compartments each having a port communicating with the interior of the drum; sleeves secured over said ports; pins journaled to saidsleeves; shoes secured to said pins and adapted in one position to register with and close the outer ends of said sleeves; and counter weights adjustably secured to said pins so that said shoes may be held in any predetermined position and thereby made to register with said sleeves during a predetermined point in the cycle of rotation of said drum.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Paper (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
US732057A 1934-06-23 1934-06-23 Rotary drum filter Expired - Lifetime US2052156A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US732057A US2052156A (en) 1934-06-23 1934-06-23 Rotary drum filter
GB3589/35A GB432852A (en) 1934-06-23 1935-02-04 Improvements in or relating to filters
DEY706D DE667354C (de) 1934-06-23 1935-02-10 Steuervorrichtung fuer ununterbrochen arbeitende Trommeldrehfilter
FR785671D FR785671A (fr) 1934-06-23 1935-02-14 Filtre rotatif à tambour

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US732057A US2052156A (en) 1934-06-23 1934-06-23 Rotary drum filter

Publications (1)

Publication Number Publication Date
US2052156A true US2052156A (en) 1936-08-25

Family

ID=24942019

Family Applications (1)

Application Number Title Priority Date Filing Date
US732057A Expired - Lifetime US2052156A (en) 1934-06-23 1934-06-23 Rotary drum filter

Country Status (4)

Country Link
US (1) US2052156A (fr)
DE (1) DE667354C (fr)
FR (1) FR785671A (fr)
GB (1) GB432852A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998883A (en) * 1957-12-23 1961-09-05 Improved Machinery Inc Filter
US3000507A (en) * 1957-06-19 1961-09-19 Frank W Young Rotary filter
US3150082A (en) * 1957-12-23 1964-09-22 Improved Machinery Inc Filter
US4173536A (en) * 1977-12-27 1979-11-06 Texaco Inc. Surface fluid collector
US4608170A (en) * 1985-05-24 1986-08-26 Lavalley Industrial Plastics, Inc. Angularly adjustable breaker valve-discharge elbow for rotary drum filters
US4608171A (en) * 1985-05-24 1986-08-26 Lavalley Industrial Plastics, Inc. Adjustable mounting for valve-discharge elbow of rotary drum filters
US4683059A (en) * 1985-05-24 1987-07-28 Lavalley Industrial Plastics, Inc. Vacuum breaker valve-discharge elbow assembly for rotary drum filters
CN110075599A (zh) * 2019-05-27 2019-08-02 江山市蓝科科技有限公司 一种水平错层翻盘真空过滤机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243150B (de) * 1961-07-27 1967-06-29 Sunds Verkstaeder Aktiebolag Drehfilter
DE1226986B (de) * 1962-03-02 1966-10-20 Voith Gmbh J M Saugtrommeldrehfilter zum Entwaessern von Suspensionen
FR1361505A (fr) * 1963-04-08 1964-05-22 Perfectionnements aux filtres à tambour tournant et analogues

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000507A (en) * 1957-06-19 1961-09-19 Frank W Young Rotary filter
US2998883A (en) * 1957-12-23 1961-09-05 Improved Machinery Inc Filter
US3150082A (en) * 1957-12-23 1964-09-22 Improved Machinery Inc Filter
US4173536A (en) * 1977-12-27 1979-11-06 Texaco Inc. Surface fluid collector
US4608170A (en) * 1985-05-24 1986-08-26 Lavalley Industrial Plastics, Inc. Angularly adjustable breaker valve-discharge elbow for rotary drum filters
US4608171A (en) * 1985-05-24 1986-08-26 Lavalley Industrial Plastics, Inc. Adjustable mounting for valve-discharge elbow of rotary drum filters
US4683059A (en) * 1985-05-24 1987-07-28 Lavalley Industrial Plastics, Inc. Vacuum breaker valve-discharge elbow assembly for rotary drum filters
CN110075599A (zh) * 2019-05-27 2019-08-02 江山市蓝科科技有限公司 一种水平错层翻盘真空过滤机

Also Published As

Publication number Publication date
GB432852A (en) 1935-08-02
FR785671A (fr) 1935-08-16
DE667354C (de) 1938-11-10

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