CA2085286A1 - Screening installation for water and waste water treatment plants - Google Patents

Screening installation for water and waste water treatment plants

Info

Publication number
CA2085286A1
CA2085286A1 CA002085286A CA2085286A CA2085286A1 CA 2085286 A1 CA2085286 A1 CA 2085286A1 CA 002085286 A CA002085286 A CA 002085286A CA 2085286 A CA2085286 A CA 2085286A CA 2085286 A1 CA2085286 A1 CA 2085286A1
Authority
CA
Canada
Prior art keywords
screening installation
screen cylinder
inlet channel
screen
treatment plants
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.)
Abandoned
Application number
CA002085286A
Other languages
French (fr)
Inventor
Karl Seel
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.)
Aqseptence Group GmbH
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
Publication of CA2085286A1 publication Critical patent/CA2085286A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/06Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/46Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/48Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B8/00Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
    • E02B8/023Arresting devices for waterborne materials
    • E02B8/026Cleaning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/28Position of the filtering element
    • B01D2201/282Filtering elements with a horizontal rotation or symmetry axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/28Position of the filtering element
    • B01D2201/287Filtering elements with a vertical or inclined rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Sewage (AREA)
  • Filtration Of Liquid (AREA)
  • Paper (AREA)
  • Centrifugal Separators (AREA)

Abstract

Abstract The screening machine intended for screening rough substances from in-flows of waste water treatment plants has a screen cylinder with an outside to inside water flow and rotates around a vertical shaft and is characterized according to the invention in that the screen cylinder consists of screening rods wound in the peripheral direction which have a wedge-shaped profile.
This makes it possible to scrape off the dewatered solids using a toothed blade which is adapted to the screen slots.

Description

SCRSENING INST~LLATION FOR
WATER ANp WASTE . ~ATISR TREATMENT PIA~TS

Thi~ ecreeni n~ in~tallation i~ reen cylinder wlth an o~t~lde to lnsido wator flow which rotatea around a vertical drive ~haft And which ls ~urrounde~
by an inlot chamber whlo~ narrows in a helloal manner.
A dlschargo openin~ for the scrap~d-o~f dewatered ~ollds iB provided at the end of the inl~t channel which i~ sealed o~f agalnst the cylinder clrcu~ference.
The cleaned water leave~ the inter~or of the ~croon ayl lnder throuqh a di~charqe ohannel which exlts raaially downwhrd (DE-U 1 689 058).
Th~ known ~oreen cylinder, whioh ha~ been installed in lsrge numbers under the nAme "Zentricieb," 5 has a perf~rated plate with tha approprlate hole size oreening elemont. Durlng the operAtlon, lt Wh~
~ound thAt ~ pororated pl~te i~ disAdvantageou~ eOr the ~l~bst~nce~ to bo ~oreened of~ from the wa~te wat~r.
Sub~tanoee wlth A certain particle ~lze ~re pushed by the ~craper b~r lnto th~ holen and are then carriad o~f ln tho aleaned water.
Aaoording to the invention, the t~sk o~ improving this known screoning maohlne i~ further ~olvad ln that th~ sare~n cylinder ~2) consists of ~creen1ng rods wound in the p~riphHral directlon. Such ~creen cylin~e~ are known ~rom ~elf-oleanlng ~oreening maohlne~ whose cylinder rotates ~round a horizont~l ~ha~t and ie fllled ln the ascondinq top ~u~drants.
Tho removal of the dewatered solida ln the top doscendlng quadrant by way of a toothsd blade was found to be ~dvantag~ou~. Thin teohnology 1~ now u~ed ~or vertiaal-~haft soreenlng machines wlth ~ll-Around external filllnq. The profiles o~ tho soreening rodE~
are prefer~bly tr~peze-shAped with a diameter Which ~5 decrea~e~ toward~ the inside. ~hie ~vold~ obstruotions o~ the ~cre~n surfaae. It may a1so be advantageouB to provlde a row of no~zlo~ to ~pr~y of~ the dew~te~ed solids. ~his row oY nozzleY extend6 vertically And 2~
.. . .

~prhys frem tho in~lde ~nto the la~ qunrt~r of the ~ntornal drum ~ur~ace. ~he rough pArticl~ ~prayed Or~
~rom there sa~ely reach the discharge ~or th~ dewatered 501ids.
The ~wo dra~ings show an smbodiment o~ a sareanlny ~hine aaoording to the invention ~n the ~or~ o~ an axial and trancverce cross c~ctlon. The aon~truatlon 1 ~or the ~areen cylinder 2 co~prl~ a case wall 4 whlch enoloses an lnlet channel 3 wh~ch narrow~ in a helical 10 manner, a center con6tructlon 5 ~or the cyllnder be~rlng ~, a di~charge pipe 7 ~or the dewAtered ~olids, And ~ dl~charge channel B ~or the ale~ned water. The drive 9 of th~ 6ar¢en drum takes pl~ae from A C10~8-~ar 10. The ~creen drum 2 ie connect~d Yia a ~poke whos3.
l~ ll to the drive ~haft 12. The inlet pipe 13 ~or the ~pray noz~le row 14 ~lso pa~ee~ through the mlddle constructlen 5, where~y tbe row o~ no~zle~ extend~ over the height of the ~croen oyllnder 2.
Along thQ edge or ths beglnning to the end of the 2~ inlet channel ~ there l~ a ~cr~p-r b~r 15 whloh Sunction~ ~ a ~e~l And l~ preseed down by sprlnge.
The scrapHr h~r pa~es lnto the di~charge plpe 7 ~or the dewatered solids which exit~ vertlcally at the bottom and whioh, a~ ~hown in Fig. 2, ~er~es into the 25 over~low channel 16. Inlet (20) nnd over~low ohannel 16 are di~ided ~>y a de~cending ~l$de 17 under which ter ~low~ and which i9 adiuBtablR in height, ~o that the ~ore~nlng mnchln~ i~ only ~illed when raln wat~r entere.
~h~ bottom edge oY the ncreen cylinder is ~eAled ag~in~t t~e exterlor edgo o~ the dl-chnrge ch*nnel 8 uslng ~t~ndnrd techn~logy.

Claims (4)

1. Screening installation for water and waste water treatment plants including a screen cylinder with an outside to inside water flow, which rotates around vertical drive shaft and including an inlet channel spirally passing around the screen cylinder, provided with a discharge opening at the sealed end of the inlet channel for the dewatered solids, characterized in that the screen cylinder (2) consists of a wedge-shaped wire wound around internal supporting rods.
2. screening installation according to claim 1, characterized in that the screen wire has a wedge-shaped profile which increases in thickness from inside to the outside of the screen cylinder.
3. Screening installation according to claim 1 or 2, characterized in that a sealing edge (15) which is equipped with a toothed blade matching the screen openings has been provided between the inlet channel (3) And the discharge opening (7) for the dewatered solids.
4. Screening installation according to claim 1 to 3, characterized in that an inside row of nozzles (14), mounted vertically, has been provided to remove the dewatered solids accumulated in the last quarter section of the inlet channel (3).
CA002085286A 1991-12-14 1992-12-14 Screening installation for water and waste water treatment plants Abandoned CA2085286A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4141379 1991-12-14
DE4141379A DE4141379A1 (en) 1991-12-14 1991-12-14 SCREENING DEVICE FOR WATER AND WASTEWATER TREATMENT PLANTS

Publications (1)

Publication Number Publication Date
CA2085286A1 true CA2085286A1 (en) 1993-06-15

Family

ID=6447130

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002085286A Abandoned CA2085286A1 (en) 1991-12-14 1992-12-14 Screening installation for water and waste water treatment plants

Country Status (5)

Country Link
EP (1) EP0547425A1 (en)
JP (1) JPH05253414A (en)
CA (1) CA2085286A1 (en)
DE (1) DE4141379A1 (en)
NO (1) NO924765L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111501958A (en) * 2020-04-26 2020-08-07 刘艳艳 Anti-blocking sewage pipeline

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19511008C2 (en) * 1995-03-25 2000-09-28 Vsb Vogelsberger Umwelttechnis Sieve arrangement for circular rainwater relief systems
AT410112B (en) * 2001-05-09 2003-02-25 Kaiser Ag FILTERING DEVICE FOR FILTERING WATER FROM A DIRT CHAMBER
CN112569669A (en) * 2020-11-06 2021-03-30 刘兰英 Filter for smelting iron material
CN112681218B (en) * 2020-12-10 2021-11-30 中国水利水电科学研究院 Forward and reverse scouring dredging method for diversion channel of hydropower station and diversion channel structure

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE22199E (en) * 1942-10-13 Screen
US1960303A (en) * 1932-12-19 1934-05-29 Chicago Pump Co Screen
US1982266A (en) * 1933-01-03 1934-11-27 Carl H Nordell System for handling sewage
US2267088A (en) * 1937-07-26 1941-12-23 Chicago Pump Co Comminutor
NL96239C (en) * 1954-04-27
DE1689058U (en) * 1954-07-02 1954-12-16 Passavant Werke VERTICAL SCREEN DRUM FOR WATER PURIFICATION SYSTEMS.
DE954947C (en) * 1954-07-03 1956-12-27 Passavant Werke Sieve device for water contaminated with floating and coarse matter, especially for sewage treatment plants
GB1511693A (en) * 1975-04-24 1978-05-24 Jones & Attwood Ltd Apparatus for removing solid material from sewage or other liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111501958A (en) * 2020-04-26 2020-08-07 刘艳艳 Anti-blocking sewage pipeline

Also Published As

Publication number Publication date
DE4141379A1 (en) 1993-06-17
JPH05253414A (en) 1993-10-05
NO924765D0 (en) 1992-12-10
EP0547425A1 (en) 1993-06-23
NO924765L (en) 1993-06-15
DE4141379C2 (en) 1993-09-23

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Legal Events

Date Code Title Description
FZDE Dead