WO1992022372A1 - Apparatus for filtering liquids - Google Patents

Apparatus for filtering liquids Download PDF

Info

Publication number
WO1992022372A1
WO1992022372A1 PCT/NL1992/000094 NL9200094W WO9222372A1 WO 1992022372 A1 WO1992022372 A1 WO 1992022372A1 NL 9200094 W NL9200094 W NL 9200094W WO 9222372 A1 WO9222372 A1 WO 9222372A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
shaft
chute
discharge
filter
Prior art date
Application number
PCT/NL1992/000094
Other languages
French (fr)
Inventor
Martin Dosoudil
Original Assignee
Amafilter B.V.
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 Amafilter B.V. filed Critical Amafilter B.V.
Publication of WO1992022372A1 publication Critical patent/WO1992022372A1/en

Links

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
    • B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
    • B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
    • 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
    • B01D33/29—Filters with filtering elements which move during the filtering operation the movement of the filter elements being a combination of movements
    • B01D33/31—Planetary movement
    • 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
    • B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes

Definitions

  • the invention relates to an apparatus for filtering liquids, comprised of a cylindrical and horizontally disposed filter vessel, in which a support: member is rotatable and along the circumference distributed is provided with a number of axes of rotation, each carrying an array of disc-shaped filter elements, while centrally within the filter vessel a chute is arranged, with a conveyor therein for the discharge of the filter cake, loosened from the filter elements and collected into the chute, to an outside the filter vessel arranged and to the chute • connected discharge shaft, which at its bottom side can be closed by a valve movable from below the shaft to this into the closing position.
  • valve arranged at the bottom side of the discharge shaft has to be opened for the discharge of the filtercake collected in the discharge shaft, and the filter cake then has to be pushed or blown out of the shaft by the over- pressure in the filter vessel.
  • This known apparatus has the drawback, that the discharge of the filter cake out of the shaft proceeds with quite some difficulty, while besides further an important pressure loss takes place in the filter vessel.
  • the invention aims to obviate this drawback of the known apparatus.
  • the apparatus according to the invention thereto is characterized, in that within the shaft at the height of the bottom side of the chute a valve seat is provided, which cooperates with a second valve, movable from above to below into a closing position, such, that for emptying of the shaft, the conveyor is put out of operation, next the upper valve is closed and after which the bottom valve is opened for the discharge of the cake.
  • the upper valve and the bottom valve in the discharge shaft may be operated in various ways.
  • both of the valves may be operated by means of pneumatic cylinders.
  • the apparatus is comprised of a cylindrical and horizontally disposed filter vessel 1, in which the support member 2 with the drive shaft 3 extending to outside the filter vessel 1 is rotable about the cylinder axis of the filter vessel 1.
  • the shaft 3 with the support member 2 is operated by the electromotor 4, through the intermediate of the chain transmission 5.
  • the feed pump 6 Coaxial with and at the end of the drive shaft 3 the feed pump 6 is mounted, and which is operated by the electromotor 7. From the feed pump 6 the pressure and suction pipes 8 irxiicated by the striped and dotted lines run to the hydr ⁇ notor 9, by means of which the evenly along the circumference of the support member 2 distributed and therein lodged drive bushes 10 may be operated.
  • the conveyor screw 11 is mounted in the conveyor chute 12, which debouches into the discharge shaft 13.
  • the discharge shaft 13 is at its bottom side provided with the valve seat 14 which cooperates with the valve 15, which may be adjusted upwards in the closing position by means of the pneumatic or hydraulic cylinder 16.
  • a second valve seat 17 is provided, which cooperates with a second valve 18, which may be adjusted downwards in the closing position by means of the pneumatic or hydraulic cylinder 19.
  • the drive bushes 10 are provided with an inner toothing which cooperates with an outer toothing (not shown) provided at the coupling part of the hollow axes of rotation 20 with the arrays of disc-shaped filter elements 21 mounted thereon.
  • the axes of rotation 20 with the filter elements 21 mounted thereon may, by sliding outside in axial direction out of the drive bushes 10 easily be disconnected therefrom and brought outside of the filter vessel 1 through a by means of a cover 22 closeable opening 23.
  • the filtrate that is passed through the filter elements 21 is drained off through the hollow axes of rotation 20, while the filter cake dislodged from the filter elements 21 may fall dcwn into the chute 12 to be transported into the discharge shaft 13 by the conveyor screw 11.
  • the support member 2 with the drive shaft 3 has the shape of a closed housing, to which the housing of the feed pump 6 is directly mounted, while further the hydromotor 9, the drive bushes 10 and the interlinked chain transmissions 24 are embodied in this, by the support member 2 and the drive shaft 3 comprised, housing, so that only the drive bushes 10 run out out of this closed housing and thus have to be provided there with sealings.
  • an oil under increased pressure is provided in adaptation to the increased pressure prevailing in the filter vessel.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Apparatus for filtering liquids, comprised of a cylindrical and horizontally disposed filter vessel, in which a support member is rotatable and along the circumference distributed to it is provided with a number of axes of rotation, each carrying an array of disc-shaped filter elements, while centrally within the filter vessel a chute is arranged with in it a conveyor for the discharge of the filter cake, loosened from the filter elements and collected into the chute, to an outside the filter vessel arranged and to the chute connected discharge shaft, which at its bottom side may be closed by a valve movable from below the shaft to this into the closing position, wherein within the shaft at the height of the bottom side of the chute a valve seat is provided, which cooperates with a second valve, movable from above to below into a closing position, such that for emptying of the shaft, the conveyor is put out of operation, next the second valve is closed and after which the bottom valve is opened for the discharge of the cake.

Description

Apparatus for filtering liquids.
The invention relates to an apparatus for filtering liquids, comprised of a cylindrical and horizontally disposed filter vessel, in which a support: member is rotatable and along the circumference distributed is provided with a number of axes of rotation, each carrying an array of disc-shaped filter elements, while centrally within the filter vessel a chute is arranged, with a conveyor therein for the discharge of the filter cake, loosened from the filter elements and collected into the chute, to an outside the filter vessel arranged and to the chute • connected discharge shaft, which at its bottom side can be closed by a valve movable from below the shaft to this into the closing position.
Such an apparatus is known from the Dutch application 8005787 in the name of the applicant.
With this known apparatus, the valve arranged at the bottom side of the discharge shaft has to be opened for the discharge of the filtercake collected in the discharge shaft, and the filter cake then has to be pushed or blown out of the shaft by the over- pressure in the filter vessel.
This known apparatus has the drawback, that the discharge of the filter cake out of the shaft proceeds with quite some difficulty, while besides further an important pressure loss takes place in the filter vessel.
The invention aims to obviate this drawback of the known apparatus.
The apparatus according to the invention thereto is characterized, in that within the shaft at the height of the bottom side of the chute a valve seat is provided, which cooperates with a second valve, movable from above to below into a closing position, such, that for emptying of the shaft, the conveyor is put out of operation, next the upper valve is closed and after which the bottom valve is opened for the discharge of the cake.
It has appeared, that by the application of the second valve in the discharge shaft, the discharge of the cake in the shaft is facilitated considerably.
The upper valve and the bottom valve in the discharge shaft may be operated in various ways.
In a favourable embodiment of the apparatus according to the invention both of the valves may be operated by means of pneumatic cylinders.
The apparatus will now be described, by way of example, with reference to the accompanying drawing.
As is shown in the drawing, the apparatus is comprised of a cylindrical and horizontally disposed filter vessel 1, in which the support member 2 with the drive shaft 3 extending to outside the filter vessel 1 is rotable about the cylinder axis of the filter vessel 1.
The shaft 3 with the support member 2 is operated by the electromotor 4, through the intermediate of the chain transmission 5. Coaxial with and at the end of the drive shaft 3 the feed pump 6 is mounted, and which is operated by the electromotor 7. From the feed pump 6 the pressure and suction pipes 8 irxiicated by the striped and dotted lines run to the hydrαnotor 9, by means of which the evenly along the circumference of the support member 2 distributed and therein lodged drive bushes 10 may be operated.
Likewise rotatable about the axis of the filter vessel 1 the conveyor screw 11 is mounted in the conveyor chute 12, which debouches into the discharge shaft 13. The discharge shaft 13 is at its bottom side provided with the valve seat 14 which cooperates with the valve 15, which may be adjusted upwards in the closing position by means of the pneumatic or hydraulic cylinder 16. At the height of the bottom side of the chute 12 a second valve seat 17 is provided, which cooperates with a second valve 18, which may be adjusted downwards in the closing position by means of the pneumatic or hydraulic cylinder 19.
The drive bushes 10 are provided with an inner toothing which cooperates with an outer toothing (not shown) provided at the coupling part of the hollow axes of rotation 20 with the arrays of disc-shaped filter elements 21 mounted thereon. The axes of rotation 20 with the filter elements 21 mounted thereon may, by sliding outside in axial direction out of the drive bushes 10 easily be disconnected therefrom and brought outside of the filter vessel 1 through a by means of a cover 22 closeable opening 23.
During operation the filtrate that is passed through the filter elements 21 is drained off through the hollow axes of rotation 20, while the filter cake dislodged from the filter elements 21 may fall dcwn into the chute 12 to be transported into the discharge shaft 13 by the conveyor screw 11.
For emptying of the discharge shaft 13 the conveyor screw 11 is put out of operation, the upper valve 18 is adjusted into the closing position by means of the cylinder 16, and after which the bottom valve 15 by means of the cylinder 19 is opened for the discharge of the filter cake. As is further shown in the drawing, the support member 2 with the drive shaft 3 has the shape of a closed housing, to which the housing of the feed pump 6 is directly mounted, while further the hydromotor 9, the drive bushes 10 and the interlinked chain transmissions 24 are embodied in this, by the support member 2 and the drive shaft 3 comprised, housing, so that only the drive bushes 10 run out out of this closed housing and thus have to be provided there with sealings.
In the housing further an oil under increased pressure is provided in adaptation to the increased pressure prevailing in the filter vessel.

Claims

C l a i m s
1. Apparatus for filtering liquids, comprised of a cylindrical and horizontally disposed filter vessel, in which a support member is rotatable and along the circumference distributed to it is provided with a number of axes of rotation, each carrying an array of disc-shaped filter elements, while centrally within the filter vessel a chute is arranged with in it a conveyor for the discharge of the filter cake, loosened from the filter elements and collected into the chute, to an outside the filter vessel arranged and to the chute connected discharge shaft, which at its bottom side may be closed by a valve movable from below the shaft to this into the closing position, characterized in that within the shaft at the height of the bottom side of the chute a valve seat is provided, which cooperates with a second valve, movable from above to below into a closing position, such, that for emptying of the shaft, the conveyor is put out of operation, next the second valve is closed and after which the bottom valve is opened for the discharge of the cake.
2. Apparatus according to claim 1 , characterized in that both of the valves may be operated by means of pneumatic cylinders.
PCT/NL1992/000094 1991-06-11 1992-06-01 Apparatus for filtering liquids WO1992022372A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9101001A NL9101001A (en) 1991-06-11 1991-06-11 DEVICE FOR FILTRATION OF LIQUIDS.
NL9101001 1991-06-11

Publications (1)

Publication Number Publication Date
WO1992022372A1 true WO1992022372A1 (en) 1992-12-23

Family

ID=19859352

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1992/000094 WO1992022372A1 (en) 1991-06-11 1992-06-01 Apparatus for filtering liquids

Country Status (3)

Country Link
AU (1) AU1896892A (en)
NL (1) NL9101001A (en)
WO (1) WO1992022372A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292696A (en) * 1994-09-01 1996-03-06 Malcolm Graham Goodson Method and apparatus for water treatment
WO2000024495A1 (en) * 1998-10-27 2000-05-04 Outokumpu Oyj Apparatus for removing material from pressurised space

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1033621A (en) * 1951-01-26 1953-07-13 Sucreries Ternynck Soc D Improvements to the purification of liquids containing suspended solids
US3055290A (en) * 1960-05-19 1962-09-25 Arvan Products Inc Filter system
FR1437606A (en) * 1965-03-24 1966-05-06 Plant for automatic filtration of materials with a high liquid content
CA995592A (en) * 1973-03-14 1976-08-24 Frederick C. Ho Filter
GB2019732A (en) * 1978-04-28 1979-11-07 Amafilter Bv Rotary disc filter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1033621A (en) * 1951-01-26 1953-07-13 Sucreries Ternynck Soc D Improvements to the purification of liquids containing suspended solids
US3055290A (en) * 1960-05-19 1962-09-25 Arvan Products Inc Filter system
FR1437606A (en) * 1965-03-24 1966-05-06 Plant for automatic filtration of materials with a high liquid content
CA995592A (en) * 1973-03-14 1976-08-24 Frederick C. Ho Filter
GB2019732A (en) * 1978-04-28 1979-11-07 Amafilter Bv Rotary disc filter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292696A (en) * 1994-09-01 1996-03-06 Malcolm Graham Goodson Method and apparatus for water treatment
GB2292696B (en) * 1994-09-01 1998-06-10 Malcolm Graham Goodson Method and apparatus for water treatment
WO2000024495A1 (en) * 1998-10-27 2000-05-04 Outokumpu Oyj Apparatus for removing material from pressurised space
US6521121B1 (en) 1998-10-27 2003-02-18 Outokumpu Oyj Apparatus for removing material from pressurised space

Also Published As

Publication number Publication date
NL9101001A (en) 1993-01-04
AU1896892A (en) 1993-01-12

Similar Documents

Publication Publication Date Title
JP4260246B2 (en) Backwash filter
US4973406A (en) Device for the separation of particulated solids from a pressurized fluid
AU2003230380A1 (en) Filter apparatus and method
CN101279160A (en) Vertical type screw press filtering equipment
AU2008249136A1 (en) Presses for matters such as the grape harvest
US6123018A (en) Method and apparatus for extracting liquid from a liquid-containing slurry
WO1992022372A1 (en) Apparatus for filtering liquids
CN2510153Y (en) Multifunctional filtering and drying machine
CN1070960C (en) Diffuser
EP0076016B1 (en) Filtering apparatus
CN117065866B (en) Grinding device and grinding method for water-based gravure ink
US3494467A (en) Horizontal leaf dry cake discharge filter
CN210410538U (en) Pretreatment kettle for glass edge covering material production
US4543184A (en) Cake filtration apparatus
EP1140321B1 (en) Filtering apparatus
CN109534648A (en) A kind of Treatment of Sludge filter press
WO1996038214A1 (en) A device for filtration and a method for conversion
US4220536A (en) Apparatus for filtering liquids
CN113617697A (en) Multichannel tealeaves seed benevolence sorting facilities that mildenes and rot
US5474101A (en) Rapid clean-out valve assembly
EP2137285A2 (en) An extraction device provided with an overturning and washing system, and relative machine
CN220110513U (en) Plate frame filter for refining myrcia
CN2469975Y (en) Precision filter
CN216320171U (en) Midbody dropwise add device is used in chlorfenapyr production
US1644854A (en) Pulp thickener

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU DE JP RU US

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
EX32 Extension under rule 32 effected after completion of technical preparation for international publication

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

EX32 Extension under rule 32 effected after completion of technical preparation for international publication

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: UA

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ

LE32 Later election for international application filed prior to expiration of 19th month from priority date or according to rule 32.2 (b)

Ref country code: KZ