EP1141643B1 - Fliehkraft-entfeuchter - Google Patents
Fliehkraft-entfeuchter Download PDFInfo
- Publication number
- EP1141643B1 EP1141643B1 EP00901054A EP00901054A EP1141643B1 EP 1141643 B1 EP1141643 B1 EP 1141643B1 EP 00901054 A EP00901054 A EP 00901054A EP 00901054 A EP00901054 A EP 00901054A EP 1141643 B1 EP1141643 B1 EP 1141643B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hollow body
- centrifugal dryer
- dryer according
- rotor
- centrifugal
- 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 - Lifetime
Links
Images
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
- F26B17/24—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by shooting or throwing the materials, e.g. after which the materials are subject to impact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/08—Drying solid materials or objects by processes not involving the application of heat by centrifugal treatment
Definitions
- the invention relates to a device for a centrifugal dehumidifier for the separation and dehumidification of granules.
- Centrifugal dehumidifiers are used, for example, to dehumidify Plastic granules used. It is easy to clean Process rooms important because when changing the granulate color or Sort the mix of granules or fragments of the previous one must be avoided with the new batch. Furthermore are long service life of the device parts, low abrasion of the parts to be dehumidified Granules and low noise emissions are important.
- centrifugal dehumidifiers according to the German published documents DE 195 37 41 A1, DE 43 30 078 A1 and DE 28 19 443 A1 and according to US patent 5,611,150 consist of a housing in which a Hollow body made of seven, rotatable with conveyor blades mounted, vertically arranged rotor coaxially encloses.
- the sieves either form a closed cylinder or are segmented. she extend from the floor to the one at the top, Granules drop zone and are only used by fasteners as well possibly interrupted by a feed chute.
- the suspension of granules and liquid becomes the lower area the centrifugal dehumidifier continuously fed, in the Space between the rotor and the hollow body formed from sieves. It is gripped by the rotating blades of the rotor, which is both an upward transport pulse and Transfer centrifugal forces to the suspension.
- the Granules both transported upwards and between the sieves and tossing the shovels back and forth while those of the Granules separate liquid through the sieves and through the drain nozzle of the housing that houses the centrifugal dehumidifier is derived.
- Centrifugal dehumidifiers of this type have proven themselves in principle. adversely is the contamination of the sieves with fragments of the granules, so that these screens are disassembled and cleaned before every color or type change or need to be replaced. Sieves also wear out relatively strong, are easily damaged when they are changed frequently generate abrasion on the granules to be dehumidified. For dehumidification of highly abrasive granules, such as with glass fibers filled plastic granules, they are therefore unsuitable. Still is the sound emitted by the impact of the granules on the sieves is considerable.
- centrifugal dehumidifiers can be used isolate against excessive sound emissions, but this insulation is complex, because the accessibility of the sieves can be closed, such as folding doors, etc., on the housings.
- the invention has for its object to a centrifugal dehumidifier create that reduces the abrasion of the granules.
- an essential part is preferred at least in the upper area of the hollow body, as an unperforated jacket educated.
- the liquid separated from the granules flows in Influence of centrifugal and gravitational acceleration on the inner wall of the unpunched jacket spiral down.
- the unperforated Coat with its smooth inner surfaces causes little wear.
- the unperforated cladding causes little sound, so that the hollow body where it is designed as an unperforated jacket, can also serve as an outer housing.
- the lower region of the hollow body is preferably with sieve segments populated, or the hollow body is completely unperforated Sheath formed with a sieve in the lower region of the hollow body.
- the main advantage of the invention is that, if at all, only small screen areas cleaned before changing color or grade or must be replaced. Remains of granules adhering to smooth walls are easy with the help of washing nozzles or by flooding the washable in the entire process room, whereas they are in sieve holes wedge. In addition, the elimination, at least in part, is reduced of an outer casing enclosing the process space the costs.
- the shaft (5) of the rotor (1) is a centrifugal dehumidifier in a bearing housing (2) rotatably and over a pulley (3) from a, shown in Figure 2, motor (4) in Rotation can be set.
- the rotor (1) consists of one, the bearing housing (2) enclosing pot (6), on which several holders (7) for the lower Conveyor blades (8) are mounted, and an intermediate disc (9) and an upper disc (10) for. Fastening the middle and top Holder (11, 12) for the middle and upper conveyor blades (13, 14).
- the pot (6) of the rotor (1) is coaxial with fixed sieve segments (15) and a filling shaft (16) enclosed on a cubic Outer housing (17) are attached, with at least one removable or a hinged plate (18) for screen installation, a drain pipe (19) and an air blow-off pipe (20) is provided.
- the top one Area of the rotor (1) encloses a flange-mounted on the outer housing (17), Unperforated jacket, flared in the shape of a truncated cone (21) with a granulate discharge nozzle (22) which is supported by a cover (23) with an air intake grate (24), a filter mat (25) and a support grille (26) is closed.
- FIG. 3 shows a centrifugal dehumidifier, the one with conveyor blades (27) equipped rotor (28) designed as a closed hollow body is completely enclosed by an unperforated jacket (29), one has a cylindrical / conical shape.
- the one with the rotor (28) coupled motor (30) is flanged onto the cover (31).
- the lid (31) contains air intake openings (32).
- the lower shaft (35) of the rotor (28) is rotatably mounted in a bearing housing (34), which is located in the base (33).
- a tangential granulate discharge nozzle (36), in the lower area a filling shaft (37) and a downcomer (38) is arranged.
- the downcomer (38) enters Air blow-off pipe (39) and has a vertical pipe (40) which in the Flow tank (41) with siphon (42) is immersed. Between the unpunched A screen (43) can be attached to the jacket (29) and the downcomer (38) become.
- the filling shaft (16) is continuously loaded with suspension.
- the liquid is in the lower area against the sieve segments (15) the outer housing (17) flung.
- the unperforated jacket (21) flows down the inside of the wall until it Flows through sieve segments (15). All of the liquid leaves the Centrifugal dehumidifier through the drain port (19).
- Through the lid (23) Air sucked in is partly with the granules, partly through blown off the air blow-off pipe (20).
- a suction fan can be connected to the air blow-off pipe (20).
- centrifugal dehumidifier differs differ from that of Figures 1 and 2 in that the rotor is completely enclosed by an unperforated jacket (29), so that all the liquid flows down the inside wall and if available, the relatively small sieve (43) in front of the downcomer (38) happens.
- the vertical tube (40) the drain shaft into the liquid level of the flow container (41) with siphon (42). This arrangement is provided in the event that a suction fan is connected to the air blow-off pipe (39).
- the area of the small sieve (43) is particularly sufficient if the liquid content of the supplied suspension is low.
- the drain shaft (38) of a central dehumidifier 3 can be designed in such a way that the screen (43) with is interchangeable in a few simple steps. It is also possible to be complete to dispense with the sieve (43) and the draining liquid in the some granules may be contained in an upstream thickener to recirculate. Suspensions from liquids and granules are easy to thicken, the screens of static thickeners hardly incline for clogging, easy to clean and more accessible, than the screens of centrifugal dehumidifiers that only take safety measures may be opened.
- the unperforated jacket (21, 29) can also be cylindrical throughout.
- the liquid flows on the inner wall of a cylinder slower than in an extended one Cone, but ultimately the cost decides which form of the jacket and the rotor (1, 28) is more appropriate.
Description
- Figur 1
- zeigt einen Teil-Längsschnitt durch einen Fliehkraft-Entfeuchter, dessen Rotor nur im unteren Bereich von einem Siebmantel mit Außengehäuse umschlossen ist.
- Figur 2
- zeigt eine Draufsicht auf den Fliehkraft-Entfeuchter nach Figur 1.
- Figur 3
- zeigt einen Teil-Längsschnitt durch einen Fliehkraft-Entfeuchter, dessen den Rotor umschließender Hohlkörper vollständig als ungelochter Mantel ausgebildet ist.
Claims (12)
- Fliehkraft-Entfeuchter für Granulate, mit einem mit Förderschaufeln (8, 13, 14; 27) bestückten, vertikal angeordneten Rotor (1; 28), einem den Rotor koaxial umschließenden, unbewegten Hohlkörper (15, 21; 29), einem am oberen Ende des Hohlkörpers angeordneten Granulat-Austragsstutzen (22; 36) und einem Ablauf (19; 38) für abgeschleuderte Flüssigkeit am unteren Ende des Hohlkörpers, wobei in den Raum zwischen dem Rotor und dem Hohlkörper eine Suspension aus Granulaten und Flüssigkeit zuführbar ist, die mittels dem Rotor beschleunigt und gegen die Innenwand des Hohlkörpers geschleudert wird und deren Flüssigkeitsanteil an der Innenwand des Hohlkörpers abläuft, wobei ein wesentlicher, im Schleuderbereich des Rotors liegender Teil des Hohlkörpers als ungelochter Mantel (21; 29) ausgebildet ist.
- Fliehkraft-Entfeuchter nach Anspruch 1,
dadurch gekennzeichnet, daß zumindest ein oberer Bereich des Hohlkörpers als ungelochter Mantel (21; 29) ausgebildet ist. - Fliehkraft-Entfeuchter nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß allenfalls der untere Bereich des den Rotor (21) umschließenden Hohlkörpers (15, 21) mit Siebsegmenten (15) bestückt ist, die in einem Außengehäuse (17) zum Ableiten der von den Granulaten getrennten Flüssigkeit angeordnet sind. - Fliehkraft-Entfeuchter nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der den Rotor (28) umschließende Hohlkörper (29) vollständig als ungelochter Mantel mit einem Sieb (43) im unteren Bereich des Hohlkörpers zum Ableiten der von den Granulaten getrennten Flüssigkeit ausgebildet ist. - Fliehkraft-Entfeuchter nach Anspruch 4,
dadurch gekennzeichnet, daß der Hohlkörper (29) mit Öffnungen für einen Füllschacht (37), einem Granulat-Austragsstutzen (36) und einem Ablaufschacht (38) hinter dem Sieb (43) für die Flüssigkeit ausgebildet ist. - Fliehkraft-Entfeuchter nach Anspruch 5,
dadurch gekennzeichnet, daß der Ablaufschacht (38) aufklappbar ist. - Fliehkraft-Entfeuchter nach Anspruch 5 oder 6,
dadurch gekennzeichnet, daß ein senkrechtes Rohr (40) des Ablaufschachtes (38) in einen Durchlaufbehälter (41) mit Siphon (42) taucht und an ein, am Ablaufschacht (38) angebrachtes Luft-Abblasrohr (39) ein Saugventilator angeschlossen ist. - Fliehkraft-Entfeuchter nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß der Ablauf des Fliehkraft-Entfeuchters zu einem Eindicker führt. - Fliehkraft-Entfeuchter nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, daß der ungelochte Mantel (21; 29) zylindrisch ist. - Fliehkraft-Entfeucher nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß der ungelochte Mantel (21; 29) kegelstumpfförmig ist. - Fliehkraft-Entfeuchter nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß der obere Bereich des ungelochten Mantels (21; 29) nach unten kegelstumpfförmig erweitert, darunter zylindrisch ist. - Fliehkraft-Entfeuchter nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß der als ungelochter Mantel ausgebildete Bereich des Hohlkörpers einen Teil des Außengehäuses des Fliehkraftentfeuchters bildet.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19900042A DE19900042A1 (de) | 1999-01-04 | 1999-01-04 | Fliehkraft-Entfeuchter |
DE19900042 | 1999-01-04 | ||
PCT/EP2000/000006 WO2000040911A1 (de) | 1999-01-04 | 2000-01-03 | Fliehkraft-entfeuchter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1141643A1 EP1141643A1 (de) | 2001-10-10 |
EP1141643B1 true EP1141643B1 (de) | 2003-04-16 |
Family
ID=7893551
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00901054A Expired - Lifetime EP1141643B1 (de) | 1999-01-04 | 2000-01-03 | Fliehkraft-entfeuchter |
Country Status (4)
Country | Link |
---|---|
US (1) | US6655039B2 (de) |
EP (1) | EP1141643B1 (de) |
DE (2) | DE19900042A1 (de) |
WO (1) | WO2000040911A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6467188B1 (en) * | 2000-10-10 | 2002-10-22 | The Conair Group, Inc. | Centrifugal pellet dryer apparatus |
JP2004311858A (ja) * | 2003-04-10 | 2004-11-04 | Nec Electronics Corp | 半導体集積回路装置 |
US6938357B2 (en) | 2003-09-09 | 2005-09-06 | Carter Day International, Inc. | Forced air circulation for centrifugal pellet dryer |
US8079158B2 (en) * | 2004-09-02 | 2011-12-20 | Grupo Petrotemex, S.A. De C.V. | Process for separating and drying thermoplastic particles under high pressure |
CN100397014C (zh) * | 2006-07-20 | 2008-06-25 | 曹永良 | 离心甩干机的转子 |
ATE532615T1 (de) * | 2006-09-20 | 2011-11-15 | Econ Maschb Und Steuerungstechnik Gmbh | Vorrichtung zum entwässern und trocknen von feststoffen, insbesondere von unterwassergranulierten kunststoffen |
US9925694B2 (en) | 2009-02-24 | 2018-03-27 | Gala Industries, Inc. | Continuous bagging processes and systems |
CN102333701B (zh) * | 2009-02-24 | 2014-01-15 | 戈拉工业公司 | 连续打包工艺及系统 |
MX2011008927A (es) * | 2009-06-22 | 2012-07-30 | Gala Inc | Sistemas continuos de peletizacion, secado y envasado con un mejor rendimiento. |
DE102010032350A1 (de) * | 2010-07-27 | 2012-02-02 | Automatic Plastics Machinery Gmbh | Vorrichtung zur Trocknung von Granulatkörnern |
CN102519226A (zh) * | 2011-12-28 | 2012-06-27 | 洛阳中原矿山机械制造有限公司 | 离心脱水机 |
CN109163511B (zh) * | 2018-08-10 | 2020-05-19 | 南京永杰化工机械制造有限公司 | 一种塑料粒子离心脱水装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE195374C (de) | ||||
DE148620C (de) * | 1902-03-27 | |||
US1510693A (en) * | 1921-02-16 | 1924-10-07 | Pulverized Coal Equipment Corp | Pulverized-coal-burning apparatus |
US2727631A (en) * | 1952-10-07 | 1955-12-20 | Mcnally Pittsburg Mfg Corp | Centrifugal drier |
DE1201773B (de) * | 1960-11-16 | 1965-09-23 | Muehlen Und Naehrmittelwerke H | Zylindrischer Trockner fuer Feststoff-Fluessigkeits-Gemische |
US3194492A (en) * | 1962-06-28 | 1965-07-13 | Richard A Koffinke | Pressurized centrifuge |
GB1047155A (en) * | 1964-05-04 | 1966-11-02 | May Fran Mfg Co | Improvements in apparatus for drying metal scrap |
US3458045A (en) * | 1966-08-26 | 1969-07-29 | Gala Inc | Centrifugal pellet drier |
US3399773A (en) * | 1967-04-14 | 1968-09-03 | Read Ivan Jay | Apparatus for separating solids from liquids |
DE2819443C2 (de) | 1978-05-03 | 1986-11-20 | Gala Industries, Inc., Virginia | Rotor für einen Fliehkraftabscheider |
CH663273A5 (en) * | 1984-12-18 | 1987-11-30 | Fershan Holding S A | Method of continuous drying of a powdered substance and apparatus for implementing it |
US5321898A (en) * | 1992-06-19 | 1994-06-21 | Decanter Machine, Inc. | Centrifugal screen bowl dryer |
US5265347A (en) * | 1992-09-04 | 1993-11-30 | Gala Industries, Inc. | Centrifugal pellet dryer |
TW317508B (de) * | 1994-08-10 | 1997-10-11 | Kanei Masao | |
US5611150A (en) | 1996-05-23 | 1997-03-18 | The Conair Group, Inc. | Centrifugal pellet dryer |
US6033577A (en) * | 1998-05-18 | 2000-03-07 | Dravo Lime Company | Coordination of liquid-solid separators and fluid tanks |
-
1999
- 1999-01-04 DE DE19900042A patent/DE19900042A1/de not_active Withdrawn
-
2000
- 2000-01-03 EP EP00901054A patent/EP1141643B1/de not_active Expired - Lifetime
- 2000-01-03 US US09/897,452 patent/US6655039B2/en not_active Expired - Lifetime
- 2000-01-03 WO PCT/EP2000/000006 patent/WO2000040911A1/de active IP Right Grant
- 2000-01-03 DE DE50001785T patent/DE50001785D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6655039B2 (en) | 2003-12-02 |
EP1141643A1 (de) | 2001-10-10 |
US20020014019A1 (en) | 2002-02-07 |
WO2000040911A1 (de) | 2000-07-13 |
DE19900042A1 (de) | 2000-07-06 |
DE50001785D1 (de) | 2003-05-22 |
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