DE832286C - Screw filter - Google Patents
Screw filterInfo
- Publication number
- DE832286C DE832286C DEN1608A DEN0001608A DE832286C DE 832286 C DE832286 C DE 832286C DE N1608 A DEN1608 A DE N1608A DE N0001608 A DEN0001608 A DE N0001608A DE 832286 C DE832286 C DE 832286C
- Authority
- DE
- Germany
- Prior art keywords
- filter
- unit according
- filter unit
- screw
- space
- 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
Links
- 239000004744 fabric Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000010802 sludge Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
- B01D29/118—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration open-ended
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Description
Schneckenfilter Für die Entwässerung von Feststoffen, welche sich in Flüssigkeiten befinden, bedient sich die Technik zahlreicher maschineller Einrichtungen und Verfahren. Die hekannten Eindicker, Klärbehälter, Hydrocyclone dienen zur Eindickung von Schlämmen; Schleudern und Zentrifugen entwässern die Feststoffe durch Abschleudern der Flüssigkeiten mit 11 hilfe der Zentrifugalkraft, die Filterpressen entwässern unter Druck, die Vakuumfilter in Form von Scheibenfiltern, Innenfiltertrommeln, Außenfiltertrommeln entwässern durch Absaugen der Flüssigkeit. Schließlich können auch durch Siebung auf feinen Siehen gröhere Körnungen entwässert werden.Screw filter For the dewatering of solids that are in Liquids are located, the technology makes use of numerous mechanical devices and procedure. The well-known thickeners, septic tanks and hydrocyclones are used for thickening of sludge; Centrifuges and centrifuges dewater the solids by centrifuging them 11 of the liquids with the help of centrifugal force, the filter presses dewater under pressure, the vacuum filters in the form of disc filters, internal filter drums, External filter drums drain water by sucking off the liquid. Finally you can Larger grain sizes can also be drained by sieving on fine sieves.
Alle diese hekannten Einrichtungen haben den Nachteil, daß sie bei der Entwässerung feinster Korngrößen nur unvollkommen arbeiten und zum Teil gänzlich versagen. Dies gilt vor allem für die Entwässerung feinster tonreicher Stoffe. Die Ansaugearbeit der Filter reicht z. B. nicht aus, um die Feststoffe aus der Trübe zu saugen und zu entwasser. zumal sich die Filtergewebe nach Ansaugung eines diinnen Filterkuchens bereits zusetzen. All of these known facilities have the disadvantage that they are at the dewatering of the finest grain sizes only work imperfectly and sometimes completely fail. This is especially true for the drainage of the finest clay-rich materials. the Suction work of the filter is enough z. B. does not work to remove the solids from the turbidity to suck and to drain. especially since the filter fabric is thin after suction Already add the filter cake.
Gemäß der Erfindung ist das Schneckenfilter ein Vaktlumfilter, welches aus einem Vakuumfilterkörper hesteht. in dessen zylindrischem oder konischem Hohlraum eine Schnecke angeordnet ist, deren Sclllleekellflügeldurchmesser etwas kleiner ist als der lichte Durchmesser des Hohlraumes. Diese Filteraggregate lassen sich in beliebiger Anzahl, eingebaut in ihren dazugehörigen Filtertrögen, aneinanderhaufen so das sich die Filteranlage beliebig erweitern läßt. l)as Schneckenfilter kann horizontal oder geneigt angeordnet werden. In diesem Fall wird der eingedickte Schlamm direkt in den Filterraum aufgegeben und fortschreitend entwässert. Vorzugsweise steht das Filteraggregat aber senkrecht im Schlammtrog. Das aus dem Filterraum herausragende untere Ende der Schnecke ist dann so ausgebildet, daß es den zu filternden Schlamm aus dem Trog in den zylindrischen oder konischen Filterraum befördert. Dieser Filterraum ist mit entsprechenden Filtergeweben, Filtertüchern und Schutzauflagen helegt. Durch diesen Filterhelag wird die Flüssigkeit in den Vakuumraum abgesaugt. Am oberen Ende kann sich der zylindrische Raum zweckmäßig zu einer Art Düse konisch verjüngen. l)as Filter saugt also den in den Filterraum geratenden Schlamm an das Filtergewebe. Das Filtrat dringt durch das Filtergewebe hindurch, der Feststoff wird dagegen auf dem Gewebe festgehalten. According to the invention, the screw filter is a Vaktlumfilter, which consists of a vacuum filter body. in its cylindrical or conical cavity a snail is arranged, the Sclllleekell wing diameter of which is somewhat smaller is than the inside diameter of the cavity. These filter units can Any number, built into their associated filter troughs, heaped together so that the filter system can be expanded as required. l) the screw filter can horizontal or inclined to be ordered. In this case the thickened sludge is fed directly into the filter room and progressively drained. However, the filter unit is preferably positioned vertically in the sludge trough. That from the Filter space protruding lower end of the screw is then designed so that it the sludge to be filtered from the trough into the cylindrical or conical filter space promoted. This filter space is equipped with appropriate filter fabrics, filter cloths and protective conditions. Through this filter layer, the liquid is in the Vacuum chamber sucked off. At the upper end, the cylindrical space can expediently taper conically to a kind of nozzle. l) The filter sucks it into the filter chamber getting sludge on the filter fabric. The filtrate penetrates the filter fabric through, the solid, on the other hand, is retained on the tissue.
Auf diese Weise wird der Schlamm immer weiter entwässert und eingedickt. Da sich jedoch die Schnecke im Filterraum bewegt und ganz knapp über die Schutzauflage streift, wird das sich auf dem Filtergewebe absetzende Material laufend wieder abgehoben. Die Schnecke ist im Filterraum mit steileren Flügeln ausgestattet, so daß das abgehol>ene Material, solange es flüssig oder breiig ist, immer wieder zur Filterfläche hinfließen muß, bis es krümelig nach oben in den Konus gedrückt wird. wo nochmals eine saugende Entwässerung unter Pressung vor sich gehen kann. Das aus deril Konus herausquellende Material fällt über eine lAlechschurre auf ein Transporthand oder in eine .\lwurfschurre.In this way, the sludge is continuously dewatered and thickened. However, since the screw moves in the filter room and just above the protective cover grazes, the material deposited on the filter fabric is continuously lifted off again. The screw is equipped with steeper blades in the filter room, so that the collected Material, as long as it is liquid or pulpy, flows back to the filter surface must, until it is crumbly pressed up into the cone. where another sucking one Dehydration can take place under pressure. That gushing out of the cone Material falls via an iron chute onto a transport hand or into a throw chute.
Um ein Verkleben der Schnecke zu verhüten, werden Abblasdüsen in den Filterraum eingebaut. To prevent the screw from sticking, blow-off nozzles are in built into the filter room.
I)er Filterkörper wird zwei- oder mehrteilig gebaut, damit sich die verschleißenden Teile leicht erneuern lassen.I) he filter body is built in two or more parts so that the Have parts that wear out easily replaced.
I)er Unterdruckraum wird zweckmäßig in mehrere Zonen unterteilt, um die Absaugung an bestimmten Stellen verstärken zu können und um stellenweise eine Abblasung möglich zu machen. I) the negative pressure space is expediently divided into several zones, to be able to increase the suction in certain places and around in places to make a blow-off possible.
Es ist hei sehr tonreichen Feststoffen zweckmäßig, in gewissen Zeitahständen das Gewebe auszublasen und eine ?ilöglichkeit vorzusehen, durch Druckwasser die Gewebe auszuwaschen.It is useful for very clay-rich solids, at certain intervals to blow out the tissue and provide an opportunity to use pressurized water Wash out tissues.
I)as Filtratwasser fließt aus dem Unterdruckraum nacll unten ab. Die Schneckenwelle ist oben gelagert und unten im Schlammbehälter geführt. Der antrieb erfolgt zweckmäßig durch Einzelantrieb oder sonst durch zentralen Gruppenantrieb, was besonders bei sternartigem Zusammenbau der Filtertröge in Frage kommt. I) The filtrate water flows out of the negative pressure space below. The worm shaft is supported at the top and guided in the sludge container at the bottom. The drive is expediently carried out by an individual drive or otherwise by a central group drive, which comes into question especially with a star-like assembly of the filter troughs.
Die Filtertröge können je nach Bedarf so aneinandergebaut werden, daß eine heliebig große Filteranlage entsteht. Die Tröge können reihenweise oder sternartig oder wabenförmig zusammengefügt werden, wobei es zweckmäßig ist, die Tröge untereinander zu verbinden, damit der Schlamm sich verteilen kann. Die Filtertröge können rund, quadratisch, rechteckig, sechseckig usw. ausgeführt werden, wie es die Erfordernisse des Zusammenhaues wünschenswert erscheinen lassen. The filter troughs can be attached to one another as required that an arbitrarily large filter system is created. The troughs can be in rows or be joined together in a star-like or honeycomb shape, it being useful that the To connect troughs to each other so that the mud can spread out. The filter troughs can be done round, square, rectangular, hexagonal etc. like it make the requirements of cohesion appear desirable.
Der Nbtransport des entwasserten Materials kann durch Sturzschächte znvisclletl den Filtereinheiten oder bei Reihenanordnung durch 13änder erfolgen. The transport of the drained material can be carried out through manholes znvisclletl the filter units or, in the case of a series arrangement, by means of 13 changers.
An Stelle der Schnecke kann für besondere Materialien eine Schraubenspindel treten, auf welcher sich eine .Scheibe mit kegelförmiger Oberfläche aufwärts und abwärts bexvegell läßt. I)ie Form der beweglichen Scheibe entspricht dem Querschnitt des Filterraumes. Xylit Hilfe dieser Scheibe schiebt die Spindel das zu entwässernde Gut durch den Filterraum und preßt dieses schließlich in den Konus. A screw spindle can be used instead of the worm for special materials occur on which a .Scheibe with a conical surface upwards and downwards bexvegell lets. I) The shape of the movable disc corresponds to the cross-section of the filter room. Xylitol using this disc pushes the spindle to be dehydrated Well through the filter space and finally press it into the cone.
Dann läuft die Spindel rückwärts und bewegt die Scheibe wieder nach unten. Während dieser Rücklaufzeit werden die Gewebe ausgeblasen.Then the spindle runs backwards and moves the disk again below. During this return time, the tissues are blown out.
Bei horizontaler Lage des Filteraggregates kami durch entsprechende Steuerung der Beschickung der Filterprozeß während des Hin- und Rücklaufes der Scheibe vor sich gehen. In the case of a horizontal position of the filter unit, kami through appropriate Control of the loading of the filter process during the back and forth movement of the disc going on.
Gemäß der Erfindung zeigen die Abb. I und 2 das Schneckenfilter, bestehend aus den zusammensetzbaren Filtertrögen I und den einzelnen Filteraggregaten. Die Filteraggregate setzen sich zusammen aus zwei- oder mehrteiligen Filterkörpern 3 und der oben gelagerten, II, und unten geführten Filterschnecke IO, deren unteres Teil 7 die Schlämme in den Filterraum hebt und deren mittleres Teil 8 den entwässerten Feststoff vom Filtergewebe 6 abhebt, durch den zylindrischen Hohlraum 4 des Filterkörpers 3 aufwärts bewegt und durch den konischen Raum 5, in dem das Ntaterial noch einmal unter Druck entwässert wird, über eine Abwurfschurre I6 zum Transportmittel 17 ausstößt. Um ein Verkleben der Schnecke mit Feststoff zu vermeiden, blasen in den zylindrischen Hohlraum 4 die Abblasdüsen 9 hinein. According to the invention, Figs. I and 2 show the screw filter, consisting of the composite filter troughs I and the individual filter units. The filter units are made up of two-part or multi-part filter bodies 3 and the above-mounted, II, and below guided filter screw IO, the lower one Part 7 lifts the sludge into the filter space and the middle part 8 the dewatered Solid lifts off the filter fabric 6 through the cylindrical cavity 4 of the filter body 3 moves upwards and through the conical space 5, in which the material is once again is dewatered under pressure, ejects via a discharge chute I6 to the transport means 17. In order to prevent the screw from sticking with solids, blow into the cylindrical Cavity 4 the blow-off nozzles 9 into it.
An Stelle der Schnecke kann eine Spindel treten, auf der sich eine Scheibe im Filterraum auf und nieder bewegen läßt, welche den Transport und das Abhel>en des Feststoffes bewerkstelligt wie die Schneckenflügel. Instead of the worm, there can be a spindle on which a The disk can move up and down in the filter chamber, which facilitates the transport and the Removal of the solid is accomplished like the screw blades.
Der Vakuumraum des F ilterkörpers 3 wird zweckmäßig in einzelne Filterzonen I>zw. auch Abblasezonen unterteilt, in denen Saugleitungen I2 und I3 den Unterdruck erzeugen bzw. zur Abführung des Filtrates dienen, die Druckluftanschlüsse 14 das Ausblasen, die Druckwasseranschlüsse 15 das Auswaschen der F i Itergewebe besorgen. The vacuum space of the filter body 3 is expediently divided into individual filter zones I> betw. also subdivided blow-off zones, in which suction lines I2 and I3 the negative pressure generate or serve to discharge the filtrate, the compressed air connections 14 the Blow out, the pressurized water connections 15 wash out the filter fabric.
Die Filtertröge sind mit Al,laßstutzen 2 versehen. The filter troughs are provided with aluminum, letting connector 2.
Der Antrieb der Filterschnecken erfolgt zweckmäßig durch Einzelantriebe oder bei sternförmiger Anordnung durch zentrale Gruppenantriebe. The drive of the filter screws is expediently carried out by individual drives or with a star-shaped arrangement through central group drives.
PATEXTANSI)RtVCISE I. Filteraggregat. insbesondere auch zum Filtern feinster Ueststoffe. dadurch gekennzeichnet, daß in einem zylindrischen (4) oder konischen Raum eines Vakuumfilters eine diesem Kaum (4) angepaßte Transportschnecke (8) mit entsprechenden Schneckenflügeln angeordnet ist. PATEXTANSI) RtVCISE I. Filtration unit. especially for filtering finest raw materials. characterized in that in a cylindrical (4) or conical space of a vacuum filter a screw conveyor adapted to this hardly (4) (8) is arranged with corresponding screw blades.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1608A DE832286C (en) | 1950-08-05 | 1950-08-05 | Screw filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEN1608A DE832286C (en) | 1950-08-05 | 1950-08-05 | Screw filter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE832286C true DE832286C (en) | 1952-02-21 |
Family
ID=7337783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN1608A Expired DE832286C (en) | 1950-08-05 | 1950-08-05 | Screw filter |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE832286C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1082575B (en) * | 1958-06-25 | 1960-06-02 | Krauss Maffei Imp G M B H & Co | Pipe thickener for thickening mass suspensions |
DE1152384B (en) * | 1956-07-24 | 1963-08-08 | Emmanuel Goriot | Press filter |
DE19718502A1 (en) * | 1997-05-02 | 1998-11-05 | Passavant Werke | Sludge dewatering facility |
-
1950
- 1950-08-05 DE DEN1608A patent/DE832286C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1152384B (en) * | 1956-07-24 | 1963-08-08 | Emmanuel Goriot | Press filter |
DE1082575B (en) * | 1958-06-25 | 1960-06-02 | Krauss Maffei Imp G M B H & Co | Pipe thickener for thickening mass suspensions |
DE19718502A1 (en) * | 1997-05-02 | 1998-11-05 | Passavant Werke | Sludge dewatering facility |
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