EP0569558A1 - Verdampfereinrichtung zur behandlung von schlämmen. - Google Patents
Verdampfereinrichtung zur behandlung von schlämmen.Info
- Publication number
- EP0569558A1 EP0569558A1 EP92918423A EP92918423A EP0569558A1 EP 0569558 A1 EP0569558 A1 EP 0569558A1 EP 92918423 A EP92918423 A EP 92918423A EP 92918423 A EP92918423 A EP 92918423A EP 0569558 A1 EP0569558 A1 EP 0569558A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- interior
- wall
- product
- cutting zone
- evaporator device
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
Definitions
- the invention relates to an evaporator device for
- Heat treatment in particular for drying sludge, with a heatable, hollow cylindrical, approximately horizontally oriented evaporator body which has a product inlet at one end and a product outlet at the other end and in which the product acts on it
- a rotor which is provided with essentially radially aligned vanes and can be driven from the outside.
- moist goods in particular sludges from waste water systems
- moist goods in particular sludges from waste water systems
- the sludge is applied in the form of a thin product film on the heated inner wall of the evaporator body through the blades of the rotor rotating on the inside, the product being continuously conveyed through the evaporator body through the blades of the rotor and an at least partially dry at the product outlet Granules are produced.
- the problem with drying is that the material to be dried, which is introduced into the product inlet as a pumpable product, passes through a tough intermediate phase with decreasing water content, which leads to lump formation. These coarse aglomerates are following drying phase from the fast rotating
- the invention is based on the object of designing an evaporator device of the type described at the outset in such a way that the formation of lumps in the critical zones is prevented and granules which are as uniform as possible are obtained as the end product.
- the wall of the interior at least in the area in front of the product outlet, is provided with at least one cutting zone which extends essentially in the longitudinal direction of the interior and which interrupts the circular contour of the interior wall cross-section.
- the cutting zone is formed by at least one depression, in particular a groove-shaped depression, of the inner wall. The through a trough-shaped depression
- the depression can be formed in the form of a continuous channel or groove or in the form of a plurality of separate depressions which follow one another in the longitudinal direction of the interior.
- the cutting zone is formed by at least one projection, in particular a web-shaped projection, of the inner wall.
- a web-shaped projection With such a web-shaped projection, the normal gap between the wing edge and the inner wall of the evaporator body is slightly reduced.
- a larger lump rolling in the area of the wing edge is held by the projection, so that the wing edge can break open the lump.
- a plurality of linear cutting zones spaced approximately parallel to one another are provided.
- a further embodiment has proven to be particularly favorable in which the cutting zones, based on the direction of rotation of the rotor, are arranged at least in the wall area covered by the upward-rotating blades. The "height" of the cutting zones is only a few millimeters in order to ensure that the product to be dried continues to be conveyed to the product outlet in a thin layer on the heated inner wall of the evaporator body.
- Fig. 1 shows a longitudinal section through a
- Fig. 2 shows a cross section. the line II-II in Fig. 1, but with an illustration of the rotor.
- the evaporator body 1 of a so-called evaporator device to be operated as a thin-film dryer, shown in a longitudinal section in FIG. 1, essentially consists of a cylindrical tube 2, which in the exemplary embodiment shown is composed of two tube sections. On the outside, the two pipe sections 2 are each surrounded at a distance by a jacket pipe 3, through which a heating chamber 4 is delimited, into which heating steam is introduced via a feed line 5 and the condensate that forms can be drawn off via a drain line 6.
- the product to be dried is introduced into the interior 8 of the evaporator body in a pumpable, puncture-resistant or crumbly consistency via a product inlet 7.
- the rotor has, at least in the inlet area, vane sections which are positioned at an angle to the longitudinal axis and thus act as conveying vanes.
- One third of the total length begins under the influence of the heating medium, whereby the interior of the evaporator body can be kept slightly under vacuum to improve the evaporation performance, so that the mass introduced passes through its so-called tough phase.
- the heated inner wall 11 Through contact with the heated inner wall 11, larger lumps with a rapidly drying outer skin and still wet filling can form, which roll on the smooth inner wall and thus either come out as lumps or are broken up in the end region by the rotor blades , whereby undesirable amounts of fine grain and dust form.
- the inner wall of the evaporator body 1 is designed as a cutting zone 13 up to the product outlet 12.
- the cutting zone is formed by a plurality of linear web-shaped projections 14 which protrude into the interior at a height of only a few millimeters.
- the height of the projections can be, for example, 3 mm.
- the projections arranged at a distance of, for example, 100 mm from one another are now like the sectional illustration in FIG. 2 reveals, based on the direction of rotation of the rotor
- the cutting zones can also be formed by corresponding outward-pointing, preferably channel-shaped depressions in the inner wall 11.
- Such lumps in the wall also hold larger clumps on the wings, which are larger in diameter than the normal gap between the wing edge and the inner wall, from the edge of the channel-shaped depression f, so that here again the wings edge can break up the lump.
- a trough-shaped depression or a web-shaped projection is arranged as a cutting zone on the inner wall.
- the cutting zones can, as shown, be aligned axially parallel or, at a small angle, measured in relation to the longitudinal axis, can be aligned in a helical line. Neither in a trough-shaped version nor in a web-shaped version, it is necessary that the cutting zones run over the full length, but they can be formed in a linear arrangement, by punctiform depressions or punctiform or stegför-shaped projections of short length.
- projections these can be applied, for example, by cams, combs, pins or also by welding beads by means of build-up welding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9114967U | 1991-12-02 | ||
DE9114967U DE9114967U1 (de) | 1991-12-02 | 1991-12-02 | Verdampfereinrichtung zur Behandlung von Schlämmen |
PCT/EP1992/001947 WO1993011396A1 (de) | 1991-12-02 | 1992-08-25 | Verdampfereinrichtung zur behandlung von schlämmen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0569558A1 true EP0569558A1 (de) | 1993-11-18 |
EP0569558B1 EP0569558B1 (de) | 1996-01-31 |
Family
ID=6873836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92918423A Expired - Lifetime EP0569558B1 (de) | 1991-12-02 | 1992-08-25 | Verdampfereinrichtung zur behandlung von schlämmen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5375343A (de) |
EP (1) | EP0569558B1 (de) |
JP (1) | JPH06505433A (de) |
AT (1) | ATE133780T1 (de) |
DE (2) | DE9114967U1 (de) |
ES (1) | ES2085643T3 (de) |
WO (1) | WO1993011396A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO176006C (no) * | 1992-11-17 | 1995-01-18 | Thermtech As | Fremgangsmåte ved törking av materialer |
EP0736162B1 (de) * | 1994-01-07 | 1999-04-28 | Thermtech A/S | Verfahren und vorrichtung zur trocknung von organischen und/oder anorganischen materialien |
ES2080017B1 (es) * | 1994-05-10 | 1996-07-16 | Olmedilla Blas Bedmar | Instalacion conjunta, continua y automatica para el secado y transformado de materias vegetales y animales. |
DE19542301B4 (de) * | 1995-11-14 | 2014-05-28 | Pondus Verfahrenstechnik Gmbh | Verfahren und Einrichtung zum Trocknen von schlammartigem Trockengut, insbesondere Klärschlamm |
DE102007042006A1 (de) * | 2007-09-04 | 2009-03-05 | Reiflock Verwaltungs Gmbh | Trocknungs-Vorrichtung für Klärschlämme |
DE202015105780U1 (de) * | 2015-10-30 | 2015-11-11 | Josef Fliegl jun. | Trocknungsvorrichtung |
WO2017156620A1 (en) * | 2016-03-07 | 2017-09-21 | Electric Horsepower Inc. | Induction heater for drilling cuttings and other materials and method |
FI20195926A1 (en) | 2019-06-12 | 2020-12-13 | Aurotec Gmbh | Device for handling thin films |
DK4072695T3 (da) | 2019-12-09 | 2025-01-13 | Grant Prideco Inc | Anordning til kontinuerlig termisk adskillelse af et stof med flere bestanddele |
EP4072694B1 (de) | 2019-12-09 | 2024-10-16 | Grant Prideco, Inc. | Verfahren zur kontinuierlichen thermischen trennung einer mehrkomponentigen substanz |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102230C (de) * | 1898-05-04 | 1899-05-02 | ||
GB662303A (en) * | 1949-07-13 | 1951-12-05 | Charles Goodall | Improvements relating to apparatus for the treatment of grass or other vegetable matter |
FR1271497A (fr) * | 1960-03-24 | 1961-09-15 | Appareil perfectionné pour le séchage de matières pulvérulentes | |
US3292870A (en) * | 1964-12-15 | 1966-12-20 | Raymond M Lang | Vegetation processing machine |
US3313034A (en) * | 1965-08-02 | 1967-04-11 | Leo J Meyer | Nut meat de-watering machine |
GB1158191A (en) * | 1966-07-20 | 1969-07-16 | Henry Balfour And Company Ltd | Improvements relating to Heat Exchangers. |
DE2306856A1 (de) * | 1973-02-12 | 1974-08-15 | Wieneke Franz | Verfahren zur trocknung von pflanzlichen produkten, wie korngut oder halmgut |
-
1991
- 1991-12-02 DE DE9114967U patent/DE9114967U1/de not_active Expired - Lifetime
-
1992
- 1992-08-25 ES ES92918423T patent/ES2085643T3/es not_active Expired - Lifetime
- 1992-08-25 AT AT92918423T patent/ATE133780T1/de active
- 1992-08-25 EP EP92918423A patent/EP0569558B1/de not_active Expired - Lifetime
- 1992-08-25 DE DE59205253T patent/DE59205253D1/de not_active Expired - Lifetime
- 1992-08-25 WO PCT/EP1992/001947 patent/WO1993011396A1/de active IP Right Grant
- 1992-08-25 JP JP5509740A patent/JPH06505433A/ja active Pending
-
1993
- 1993-08-02 US US08/101,245 patent/US5375343A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9311396A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1993011396A1 (de) | 1993-06-10 |
EP0569558B1 (de) | 1996-01-31 |
JPH06505433A (ja) | 1994-06-23 |
ES2085643T3 (es) | 1996-06-01 |
DE9114967U1 (de) | 1993-04-01 |
ATE133780T1 (de) | 1996-02-15 |
DE59205253D1 (de) | 1996-03-14 |
US5375343A (en) | 1994-12-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0225351B1 (de) | Vorrichtung zum trocknen von klärschlamm | |
EP0017040B1 (de) | Dünnschichtkontakttrockner | |
DE69312690T2 (de) | Verfahren, vorrichtung und anlage zur extraktion, durch verdampfung eines festen rückstandes aus einem fliessfähigen material | |
DE3301053A1 (de) | Vorrichtung zum abtrennen von fluessigkeit aus einem schlammartigen brei oder einem feststoffluessigkeitsgemenge | |
DE3142985C2 (de) | ||
EP0569558B1 (de) | Verdampfereinrichtung zur behandlung von schlämmen | |
DE2228682A1 (de) | Vorrichtung zum trocknen von fliessfaehigen stoffen | |
EP1631371A1 (de) | Vorrichtung zur behandlung von feststoffen | |
DE2100248C3 (de) | Einrichtung zur Wärme-, Kälte,- und/oder Stoffbehandlung körnigen, rieselfähigen Gutes | |
DE2634072A1 (de) | Vorrichtung und verfahren zum erwaermen und entwaessern eines wasserhaltigen stoffes | |
DE29515322U1 (de) | Reaktorvorrichtung für fließfähige und höherviskose Medien | |
DE4011382A1 (de) | Kontinuierliches verfahren zur trennung von loesungen und suspensionen in einem rieselfaehigen feststoff und in ein weitgehend feststoffreies destillat | |
WO2003084846A1 (de) | Mischer mit durchsatzglättung | |
DE1952199A1 (de) | Duennschichtapparat mit einer zweiteiligen Waermebehandlungskammer | |
WO1998006989A1 (de) | Drehtrommel zum trocknen von rieselfähigem gut | |
DE2119773A1 (de) | Vorrichtung zum Eindampfen, Erwärmen oder Kühlen von Flüssigkeiten, die Feststoffe enthalten, oder zum Trocknen, Erwärmen oder Kühlen von Schüttgütern | |
DE1751164A1 (de) | Vorrichtung zur kontinuierlichen thermischen Behandlung von schuettfaehigem koernigem Gut | |
DE1258827B (de) | Duennschichtverdampfer | |
CH659882A5 (de) | Schaufeltrockner. | |
DE69100808T2 (de) | Trockner für fein verteilte produkte. | |
DE2606647C2 (de) | Kontinuierlich arbeitender Kontakttrockner | |
DE4201905A1 (de) | Verfahren und einrichtung zur trocknung eines feuchtguts | |
EP0114217A2 (de) | Vorrichtung zum Fördern, Zerkleinern und Mischen von Fördergut mit hohem Feststoffgehalt | |
DE591299C (de) | Vorrichtung zum gleichzeitigen Mahlen und anschliessenden Mischen von mehreren Stoffen | |
WO1999008058A1 (de) | Vakuumtrocknungseinrichtung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19930701 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE ES FR GB IT LI NL |
|
17Q | First examination report despatched |
Effective date: 19940704 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT CH DE ES FR GB IT LI NL |
|
REF | Corresponds to: |
Ref document number: 133780 Country of ref document: AT Date of ref document: 19960215 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 59205253 Country of ref document: DE Date of ref document: 19960314 |
|
ITF | It: translation for a ep patent filed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: R. A. EGLI & CO. PATENTANWAELTE |
|
ET | Fr: translation filed | ||
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2085643 Country of ref document: ES Kind code of ref document: T3 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19960503 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19980810 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19980817 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19980821 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19980831 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19980914 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990825 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990825 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990826 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000301 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19990825 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000428 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20000301 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20000911 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050825 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20110824 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20110829 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59205253 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59205253 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20120828 |