NO812652L - DEVICE FOR ROOM FILTER PRESSURE. - Google Patents
DEVICE FOR ROOM FILTER PRESSURE.Info
- Publication number
- NO812652L NO812652L NO812652A NO812652A NO812652L NO 812652 L NO812652 L NO 812652L NO 812652 A NO812652 A NO 812652A NO 812652 A NO812652 A NO 812652A NO 812652 L NO812652 L NO 812652L
- Authority
- NO
- Norway
- Prior art keywords
- filter
- plate
- cloth
- membranes
- cake
- Prior art date
Links
- 239000004744 fabric Substances 0.000 claims description 17
- 239000012065 filter cake Substances 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000010802 sludge Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000270295 Serpentes Species 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/164—Chamber-plate presses, i.e. the sides of the filtering elements being clamped between two successive filtering plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/172—Plate spreading means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/32—Removal of the filter cakes
- B01D25/34—Removal of the filter cakes by moving, e.g. rotating, the filter elements
Description
Når kommunalt såvel som industrielt avfallsvann eller pr.o-sessvann blir behandlet, dannes det vanligvis slam. I mange tilfeller er det ønskelig å redusere fuktighetsinnholdet (øke tørrstoffinnholdet) i dette slam før slammet blir deponert, transportert eller tatt i annen anvendelse. When municipal as well as industrial waste water or process water is treated, sludge is usually formed. In many cases, it is desirable to reduce the moisture content (increase the dry matter content) in this sludge before the sludge is deposited, transported or put to another use.
Avvanning kan f.eks. foretas i en kammer-filterpresse, hvorved det blir oppnådd et høyere tørrstoffinnhold og derved en vesentlig reduksjon av slamvolumet. Dewatering can e.g. is carried out in a chamber filter press, whereby a higher dry matter content is achieved and thereby a significant reduction of the sludge volume.
Ved anvendelse av en kammer-filterpresse for behandling av avfallsslam kreves det imidlertid uheldigvis en forholdsvis stor innsats av manuelt arbeide for å fjerne de sammenpressede, tørre slamkaker som er dannet mellom de filterduk-belagte filterplater i kammer-filterpressen. Foreliggende oppfinnelse har derfor til formål å lette anvendelsen av en kammer-filterpresse i forbindelse med avvanning av avfallsslam og spesielt å lette fjernelsen av slamkakene fra filterplatene og dukene. When using a chamber filter press for the treatment of waste sludge, however, unfortunately a relatively large effort of manual work is required to remove the compressed, dry sludge cakes that are formed between the filter cloth-coated filter plates in the chamber filter press. The purpose of the present invention is therefore to facilitate the use of a chamber filter press in connection with the dewatering of waste sludge and in particular to facilitate the removal of the sludge cakes from the filter plates and cloths.
Dette formål blir ifølge oppfinnelsen oppnådd ved at det mellom en filterduk som dekker platen, og platen er anordnet en eller flere membraner som dekker bare en del av den totale filter-plateoverflate og som ved tilførsel av et medium under trykk kan ekspanderes fra den sammenpressede stilling som blir inntatt ved pressingen, for derved å bringe filterduken til å strekke seg eller bule ut, slik at kontaktflaten mellom duken og filterkaken avtar og derved også vedheftningen av filterkaken på duken, slik at filterkaken kan løsne fra duken og platen som følge av tyngdekraften. According to the invention, this purpose is achieved by arranging one or more membranes between a filter cloth covering the plate and the plate which cover only a part of the total filter plate surface and which can be expanded from the compressed position when a medium is supplied under pressure which is absorbed during the pressing, thereby causing the filter cloth to stretch or bulge out, so that the contact surface between the cloth and the filter cake decreases and thereby also the adhesion of the filter cake to the cloth, so that the filter cake can detach from the cloth and the plate as a result of gravity.
Membranene kan fortrinnsvis ha form av slanger og ekspan-sjonen blir bevirket ved hjelp av trykkluft. The membranes can preferably be in the form of hoses and the expansion is effected with the help of compressed air.
For å sikre tømming av kammer-filterpressen (at slamkakene faller ut), ligger det innenfor rammen for oppfinnelsen at gummimembraner vekselvis kan fylles med luft og tømmes. Den pulserende bevegelse som filterdukene derved utsettes for, be-virker vibrasjoner i slamkaken som derved løsner. To ensure emptying of the chamber filter press (that the sludge cakes fall out), it is within the scope of the invention that rubber membranes can be alternately filled with air and emptied. The pulsating movement to which the filter cloths are thereby exposed causes vibrations in the sludge cake, which thereby loosens.
Det skal bemerkes at oppfinnelsen innebærer muligheten avIt should be noted that the invention involves the possibility of
å adskille flere (eventuelt alle) filterplater fra hverandre samtidig, hvorved den tid som er nødvendig for tømming blir redusert vesentlig. Mekanismen for bevegelse av platene kan dessuten være enkel fordi den kan være basert på trykkluft. De bevegelige deler kan endog være begrenset til å være bare platene, to separate several (possibly all) filter plates from each other at the same time, whereby the time required for emptying is significantly reduced. The mechanism for moving the plates can also be simple because it can be based on compressed air. The moving parts can even be limited to just the plates,
og membranbevegeIsen utnyttes for adskillelse av platene. and the membrane movement is used to separate the plates.
Oppfinnelsen beskrives mer detaljert i det følgende ved hjelp av en utførelsesform under henvisning til tegningene, hvor: Fig. 1 er et skjematisk sideriss av noen filterplater i en kammer-f ilterpresse, The invention is described in more detail in the following by means of an embodiment with reference to the drawings, where: Fig. 1 is a schematic side view of some filter plates in a chamber filter press,
Fig. 2 er et frontriss av en filterplate,Fig. 2 is a front view of a filter plate,
Fig. 3 er et snitt i større målestokk,Fig. 3 is a section on a larger scale,
Fig. 4 er et snitt av to-filterplater og en mellomliggende filterkake, og Fig. 4 is a section of two filter plates and an intermediate filter cake, and
Fig. 5 viser en komplementær separeringsinnretning.Fig. 5 shows a complementary separation device.
Den kammer-filterpresse som er vist skjematisk på Fig. 1, omfatter en ramme 11 på.hvilken et flertall filterplater 1 er opphengt på fleksibel måte. Når mellomrommene mellom filterplatene er blitt fylt med slam, blir filterplate-pakken sammenpresset for å presse ut vannet ved hjelp av et hydraulisk stempel 12 og en mellomplate 13. The chamber filter press shown schematically in Fig. 1 comprises a frame 11 on which a plurality of filter plates 1 are suspended in a flexible manner. When the spaces between the filter plates have been filled with mud, the filter plate pack is compressed to force out the water by means of a hydraulic piston 12 and an intermediate plate 13.
Som det fremgår av Fig. 2-4 omfatter hver filterplate 1 på hver side fordypninger 2 slik at det bare blir tilbake én bred kant som strekker seg rundt hele. Hver filterplate 1 er belagt på begge sider med en filterduk 3 som er strukket så løst at den kan presses inn i fordypningen 2 i filterplaten 1. Filterduken er festet til filterplaten langs kanten som strekker seg rundt hele og frem til midten av fordypningen 2. I■filterplaten er det anordnet dreneringskanaler som er vist skjematisk i form av et utløp ved 4. As can be seen from Fig. 2-4, each filter plate 1 includes recesses 2 on each side so that only one wide edge is left which extends around the whole. Each filter plate 1 is coated on both sides with a filter cloth 3 that is stretched so loosely that it can be pressed into the recess 2 in the filter plate 1. The filter cloth is attached to the filter plate along the edge that extends all the way up to the center of the recess 2. I ■the filter plate is equipped with drainage channels which are shown schematically in the form of an outlet at 4.
I hver fordypning 2 i de respektive filterplater er det anordnet to (eller flere) like gummislanger 5, nemlig en på hver side av det sentrale festepunkt for filterduken. Gummislangene 5 er koblet til lukkede luftpassasjer 15 som strekker seg gjennom kantene av filterplaten 1 ut til trykkluft-tilkoblinger (ikke vist). Slangene 5 er lukket i sine motsatte ender. In each recess 2 in the respective filter plates, two (or more) identical rubber hoses 5 are arranged, namely one on each side of the central attachment point for the filter cloth. The rubber hoses 5 are connected to closed air passages 15 which extend through the edges of the filter plate 1 out to compressed air connections (not shown). The hoses 5 are closed at their opposite ends.
Når de respektive filterkåker efter fullført presseopera-sjon skal frigjøres fra filterplatene, blir gummislangene 5 som er fullstendig sammenpresset, fylt med trykkluft gjennom luft-passasjene 15 slik at slangene ekspanderer og strekker filterduken utad fra filterplaten, som vist på Fig. 4. Derved avtar den mulige kontaktflate mellom den fullstendig pressede filterkake og filterduken, og filterkaken kan derfor lett falle ned fra filterplaten. På Fig. 4 er. forholdene vist akkurat når fil terkaken er blitt frigjort fra tilhørende filterplate. På grunn av at gummislangene 5. er forseglet i sine frie ender kan trykk-luften ikke lekke ut og tilsvarende kan ikke pressevann tre inn i disse. Det kan imidlertid tenkes at de to slanger kan være' forenet til en slange. When the respective filter housings are to be released from the filter plates after the pressing operation has been completed, the rubber hoses 5, which are completely compressed, are filled with compressed air through the air passages 15 so that the hoses expand and stretch the filter cloth outwards from the filter plate, as shown in Fig. 4. Thereby decreases the possible contact surface between the completely pressed filter cake and the filter cloth, and the filter cake can therefore easily fall off the filter plate. On Fig. 4 is. the conditions shown just when the filter cake has been released from the associated filter plate. Due to the fact that the rubber hoses 5. are sealed at their free ends, the compressed air cannot leak out and, correspondingly, pressurized water cannot enter them. It is conceivable, however, that the two snakes can be united into one snake.
Det er selvsagt mulig innenfor rammen av oppfinnelsen å ut-føre membranene på annen måte enn i form av gummislanger, og videre kan trykkmediet være et annet enn luft. It is of course possible within the scope of the invention to design the membranes in a different way than in the form of rubber hoses, and furthermore the pressure medium can be something other than air.
Som et alternativ til "åpning" eller adskillelse av filterplatene som beskrevet ovenfor, kan det brukes et hjul 9 som er anbragt over filterplatene og ved rotasjon, beveger en plate om gangen, ved at et spor 10 i hjulet kommer i inngrep med en tapp festet på de respektive filterplater. Den avstand som hver plate beveges, blir bestemt av hjulets diameter. Hjulet er fik-sert i vertikal retning og beveges horisontalt når en plate beveges, idet den neste plate som står for tur, blir beveget ved neste hjulrotasjon. Denne komplementære åpningsmekanisme er spesielt på sin plass når filterpressen har stor lengde, fordi kraften fra membranene i så fall kan være utilstrekkelig til å adskille eller fordele filterplatene. As an alternative to "opening" or separating the filter plates as described above, a wheel 9 can be used which is placed over the filter plates and on rotation, moves one plate at a time, by a slot 10 in the wheel engaging with a pin attached on the respective filter plates. The distance each plate moves is determined by the diameter of the wheel. The wheel is fixed in a vertical direction and moves horizontally when a plate is moved, the next plate which is in turn being moved at the next wheel rotation. This complementary opening mechanism is particularly useful when the filter press has a long length, because in that case the force from the membranes may be insufficient to separate or distribute the filter plates.
Av Fig. 5 fremgår det i detalj hvordan filterplatene er fleksibelt opphengt på horisontale og horisontalt bevegbare tapper 7 ved hjelp av strimmelelementer 8 eller lignende. Fig. 5 shows in detail how the filter plates are flexibly suspended on horizontal and horizontally movable pins 7 by means of strip elements 8 or the like.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7910058A SE7910058L (en) | 1979-12-06 | 1979-12-06 | DEVICE FOR CAMERA FILTER PRESSURE |
Publications (1)
Publication Number | Publication Date |
---|---|
NO812652L true NO812652L (en) | 1981-08-05 |
Family
ID=20339488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO812652A NO812652L (en) | 1979-12-06 | 1981-08-05 | DEVICE FOR ROOM FILTER PRESSURE. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0041532A1 (en) |
FI (1) | FI803798L (en) |
NO (1) | NO812652L (en) |
SE (1) | SE7910058L (en) |
WO (1) | WO1981001665A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3710353A1 (en) * | 1987-03-28 | 1988-10-13 | Rittershaus & Blecher Gmbh | CHAMBER FILTER PRESS |
CN112619219B (en) * | 2018-06-29 | 2022-04-08 | 潍坊市天源环保科技有限公司 | Sewage treatment plant sludge filter pressing device |
CN109011748B (en) * | 2018-09-07 | 2021-04-27 | 浙江胜达祥伟化工有限公司 | Efficient diaphragm filter plate filter press |
CN112807789B (en) * | 2020-12-18 | 2022-12-13 | 濮琴兰 | Filter plate of filter |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT201615B (en) * | 1955-03-29 | 1959-01-10 | Otto Emele | Process for dehumidifying pressed material and for detaching the press cake in a filter press and filter press for carrying out the process |
US3270887A (en) * | 1960-12-12 | 1966-09-06 | Almasfuezitoei Timfoeldgyar | Filter presses for separating solids from liquids |
BE623481A (en) * | 1961-10-12 | |||
DE1201812B (en) * | 1963-04-10 | 1965-09-30 | Otto Emele | Filter press plate for self-releasing the filter cake |
US3347383A (en) * | 1965-11-19 | 1967-10-17 | Shriver & Company Inc T | Filter press |
US3402667A (en) * | 1967-04-03 | 1968-09-24 | Panther Pumps & Equipment Co | Fluid power transfer apparatus |
GB1229039A (en) * | 1967-09-27 | 1971-04-21 | ||
US3680981A (en) * | 1970-12-21 | 1972-08-01 | Josef Wagner | Pump and method of driving same |
DE2257690A1 (en) * | 1972-11-24 | 1974-05-30 | Walter Beck Kg Kontroll Und Fe | HYDRAULIC OR COMPRESSED AIR ACTUATED CLOSED DIAPHRAGM HUB JACK |
SE389697B (en) * | 1975-04-07 | 1976-11-15 | G A Nilsson | PRINT MEDIA POWER MECHANISM |
DE2535524C3 (en) * | 1975-08-08 | 1979-10-04 | Knorr-Bremse Gmbh, 8000 Muenchen | Lifting cylinder for rail brake magnets |
-
1979
- 1979-12-06 SE SE7910058A patent/SE7910058L/en not_active Application Discontinuation
-
1980
- 1980-12-05 EP EP81900025A patent/EP0041532A1/en not_active Withdrawn
- 1980-12-05 FI FI803798A patent/FI803798L/en not_active Application Discontinuation
- 1980-12-05 WO PCT/SE1980/000321 patent/WO1981001665A1/en not_active Application Discontinuation
-
1981
- 1981-08-05 NO NO812652A patent/NO812652L/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI803798L (en) | 1981-06-07 |
SE7910058L (en) | 1981-06-07 |
EP0041532A1 (en) | 1981-12-16 |
WO1981001665A1 (en) | 1981-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3342123A (en) | Automatic chamber pressure filter | |
KR101804350B1 (en) | Dehydrating apparatus of sludge | |
CN105536310A (en) | Filter pressing method for removing residual water conveniently and filter press adopting filter pressing method | |
US4430231A (en) | Filtering apparatus and method | |
KR100870708B1 (en) | Filter press with up and down filter cloth | |
NO812652L (en) | DEVICE FOR ROOM FILTER PRESSURE. | |
CN107308699A (en) | A kind of filter plate mobile high-pressure filter press | |
JPH03501096A (en) | Two-stage batch filter device and filtration method | |
CN111420437B (en) | Vacuum filter | |
KR101906987B1 (en) | Apparatus and method for detaching cake in filter press | |
JP2006223946A (en) | Filter press apparatus and slurry pressing method of slurry in the same | |
CN109534642A (en) | A kind of reciprocating sludge extruding drying machine | |
CN214913698U (en) | Van-type filter press with conveying structure | |
US3812971A (en) | An apparatus for dehydrating a slurry | |
KR101261568B1 (en) | Filtering plate arrangement device for filter presentation | |
CN202569691U (en) | Full-automatic sludge treatment membrane pressure filter | |
JPS6485B2 (en) | ||
US719438A (en) | Filter and extractor press. | |
USRE22520E (en) | Filter | |
US3727762A (en) | Filter press for continuous filtration under pressure | |
CN219186023U (en) | Vacuum filter for suction filtration, squeezing and drying | |
CN114618220B (en) | Automatic cleaning equipment for sludge filtration | |
CN215876367U (en) | Novel box-type filter press | |
CN212703403U (en) | Full-automatic membrane system belt cleaning device | |
CN212594187U (en) | Quick liquid inlet device for filter press |