GB2385284A - Rotary Filter - Google Patents

Rotary Filter Download PDF

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Publication number
GB2385284A
GB2385284A GB0203736A GB0203736A GB2385284A GB 2385284 A GB2385284 A GB 2385284A GB 0203736 A GB0203736 A GB 0203736A GB 0203736 A GB0203736 A GB 0203736A GB 2385284 A GB2385284 A GB 2385284A
Authority
GB
United Kingdom
Prior art keywords
solids
roller
rotary filter
fluid
tank
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.)
Granted
Application number
GB0203736A
Other versions
GB0203736D0 (en
GB2385284B (en
Inventor
Edward Peter Ellis
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 GB0203736A priority Critical patent/GB2385284B/en
Publication of GB0203736D0 publication Critical patent/GB0203736D0/en
Publication of GB2385284A publication Critical patent/GB2385284A/en
Application granted granted Critical
Publication of GB2385284B publication Critical patent/GB2385284B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B01D33/722—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding containing fixed liquid displacement elements or cores

Abstract

A rotary filter where fluids and solids are separated by means of a rotating inclined perforated roller comprising internal baffles dividing the roller into sections. In operation fluid flows in through an inlet pipe and an entry spoke end plate (1) into the perforated roller, where the fluid filters through the wall of the roller and is collected in a tank (8) below. As the roller rotates slowly the solids move down the roller through the baffle plates (12, 13, 14, 15) into the next sections (b, c, d, e). Remaining fluid will transfer out of the solids and they will continue to move down through the rest of the sections drying as they progress. When they reach the end, the solids pass through spoke end plates (4) and go down a chute (7) into a container. Preferably the tank for collecting the fluid is inclined and to avoid contamination there is a minimum clearance between the spoke end plates and the tank wall. The roller may be made of stainless steel mounted on a stainless steel supporting frame.

Description

<Desc/Clms Page number 1>
ROTARY FILTER This invention relates to a Rotary Filter The separation of fluids and solids is a common problem to overcome. This simple filter enables continuous separation yet high volume, plus providing adequate drying times for solids.
The invention consists of a hollow stainless steel roller made from perforated sheet, end plates baffle plates and a shaft. The roller is suspended above a collection tank and revolves on bearings that are mounted on a supporting steel frame at an angle of approximately 5 degrees.
A specific embodiment of the invention will now be described by way example with reference to the accompanying drawings in whichFig 1 shows cross section of filter in operation. fig 2 is a component drawing Fig 3 shows baffle plates 12,13, 14, and 15.
Fig 4 shows entry and exit spoke end plates I and 4.
Fig 5 shows perforated skin of roller.
Fig 6 is an entry cross section showing minimum clearance (M) and seal/bearing assembly.
The filter operates by allowing the contaminated fluid to enter the filter through the entry pipe and through the spoke end plate (1) into section (a). Whilst in section (a), the fluid filters through the walls of the roller via the perforated sheet.
As the rotary drive (11) rotates the roller slowly, the solids move down the roller due to gravity.
When the open section of baffle plate (12) rotates to the bottom position, the solids transfer into section (b).
Whilst in section (b), any remaining fluid will filter through the walls of the roller and the solids will transfer into section (c) as the open section of baffle plate (13) rotates to the bottom.
The solids should transfer into sections (d) and (e) in a similar operation where they begin to dry.
When they reach the spoke end plate (4), the solids will exit the roller and go down chute (7) into container.
The filtered fluid will collect in tank (8) and exit through pipe.
Minimum Clearance between spoke end plate (1) and the tank wall must be achieved in order that no contamination of filtered fluids occurs. See fig 6.
Baffle plates (12), (13), (14), (15), have thrower rings fitted to prevent fluid running down the outside of roller.
Baffle plates are mounted on the shaft with the open quadrants opposite each other. See fig 1.

Claims (5)

  1. CLAIMS 1) A rotary filter were the fluids and solids are separated by means of a rotating inclined perforated roller, with internal baffles providing filtration and drying zones.
  2. 2) A rotary filter as claimed in Claim 1, wherein spoke end plates allow contaminated fluid to enter and solids to exit, the perforated roller.
  3. 3) A rotary filter as claimed in Claim 1 and 2 wherein minimum clearance is achieved between tank and entry spoke end plate.
  4. 4) A rotary filter as claimed in Claim 1, 2, and 3 wherein filtered fluid is collected in an inclined tank.
  5. 5) A rotary filter substantially as described herein with reference to Figures 1-6 of the accompanying drawings.
    <Desc/Clms Page number 3>
    Amendments to the claims have been filed as follows
    A Rotary Filter were the fluids and solids are separated by means of a rotating inclined perforated parallel roller wherein are & H size diameter restrictor baffles (Sg 3) with an open section in each one. These open sections are offset 180 degrees from each other along the support shaft.
    The restrictor baffles restrict flow through by forming fwiy danuned filtration zdnes-This is until the open section of an adjacent restrictor baffle rotates into the tow position, allowing remaining fluid and solids to pass into next zone. This cycle is repeated along the length of the niter allowing complete separation of Suids and also drying of solids-
GB0203736A 2002-02-18 2002-02-18 Rotary filter Expired - Fee Related GB2385284B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0203736A GB2385284B (en) 2002-02-18 2002-02-18 Rotary filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0203736A GB2385284B (en) 2002-02-18 2002-02-18 Rotary filter

Publications (3)

Publication Number Publication Date
GB0203736D0 GB0203736D0 (en) 2002-04-03
GB2385284A true GB2385284A (en) 2003-08-20
GB2385284B GB2385284B (en) 2005-05-25

Family

ID=9931234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0203736A Expired - Fee Related GB2385284B (en) 2002-02-18 2002-02-18 Rotary filter

Country Status (1)

Country Link
GB (1) GB2385284B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663432A (en) * 1949-05-23 1953-12-22 Kamyr Ab Inclined rotary vacuum filter
US4173419A (en) * 1976-07-07 1979-11-06 Arie Blok Rotary mixer
GB2199511A (en) * 1985-07-11 1988-07-13 Lujari Instmsto Oy A device for the separation of solid substances from waste water
US4885057A (en) * 1986-01-30 1989-12-05 Teijin Limited Method for treating synthetic pulp particles, and pulp particles composed of synthetic polymer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663432A (en) * 1949-05-23 1953-12-22 Kamyr Ab Inclined rotary vacuum filter
US4173419A (en) * 1976-07-07 1979-11-06 Arie Blok Rotary mixer
GB2199511A (en) * 1985-07-11 1988-07-13 Lujari Instmsto Oy A device for the separation of solid substances from waste water
US4885057A (en) * 1986-01-30 1989-12-05 Teijin Limited Method for treating synthetic pulp particles, and pulp particles composed of synthetic polymer

Also Published As

Publication number Publication date
GB0203736D0 (en) 2002-04-03
GB2385284B (en) 2005-05-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060218