EP0062576B1 - Kontinuierlich arbeitende Zentrifuge - Google Patents
Kontinuierlich arbeitende Zentrifuge Download PDFInfo
- Publication number
- EP0062576B1 EP0062576B1 EP82400571A EP82400571A EP0062576B1 EP 0062576 B1 EP0062576 B1 EP 0062576B1 EP 82400571 A EP82400571 A EP 82400571A EP 82400571 A EP82400571 A EP 82400571A EP 0062576 B1 EP0062576 B1 EP 0062576B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- continuously operating
- hydro
- rotation
- wall
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
- B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
Definitions
- the present invention relates to a continuous wringer, that is to say a wringer having a perforated wall of revolution driven in rotation about its axis, the product flow to be wrung circulating in the axial direction of the wringer.
- spin dryers generally operate by successive loads, that is to say that a certain volume of material to be wrung is poured into the tank, generally with a vertical axis of the wringer and is removed therefrom after treatment.
- Dryers, ovens or the like which consist of a wall of revolution driven in rotation about its axis and which operate continuously, the flow of product to be dried being driven in the axial direction of the device.
- the axial displacement is obtained by simple gravity flow when the axis is inclined, by helical screws or fixed oblique walls which slide the material on the cylindrical wall or by helical fins integral with the wall which cause the material by lifting it along the peripheral wall to slide it by gravity downstream.
- the treated material is subjected to a centrifugal force much greater than the force of gravity, which the plate against the wall and one cannot use natural progression by gravity to circulate the material.
- you cannot use deflectors, worms with an axis parallel to the axis of the drum or fixed oblique walls because due to the centrifugal force, the friction force on the perforated wall would be too large, there would be a jam against the deflectors and the material could be damaged.
- Patent FR-A-1057 268 proposes a so-called continuous operation wringer comprising an extractor member constituted by an endless screw with an axis parallel to the axis of the basket; however, this extractor only advances an internal layer of wrung material and leaves a continuous layer of material against the wall. This patent offers no solution to the above problems.
- the present invention aims to achieve, despite the above impossibilities, a continuous wringer in which the material progresses from the inlet to the outlet without being subjected to intense mechanical stresses.
- the continuous wringer with a perforated wall of revolution driven in rotation about its axis, comprising advancing members acting on the layer of material, to make it advance parallel to the axis of the wringer is characterized in that the path of the advancement members in the part where said members cooperate with the layer of treated material applied against the perforated wall constantly has a component in the diametral plane and an axial component directed downstream.
- the material is, in the area of action of the advancing members, driven over a relatively small distance downstream but, due to the component in the diametral plane which can be substantially equal to the peripheral speed of the perforated wall therefore of the layer of material, there can be no jamming.
- the advancement members are constituted by radial elements mounted on a shaft mounted obliquely to the axis of the wall of revolution in the internal volume delimited by said wall of revolution, the useful radius of each radial element being slightly less than the smallest distance from the shaft to the perforated wall in a plane perpendicular to said shaft comprising the radial element considered.
- the shaft carrying the advancement members could be mounted for free rotation, the rotation being ensured by the thrust on the advancement organs of the material to be wrung; it is however preferable to drive the shaft in rotation positively, the direction of rotation and the speed of the shaft being such that, in the part of their circular trajectory where they come close to the wall, the ends of the radial elements move downstream, their peripheral speed being substantially equal to or preferably slightly higher than the peripheral speed of the internal surface of the perforated wall.
- the advancement members are constituted by elements mounted with free rotation around ends of integral axes to form a zigzag shaft, the general line of the shaft being parallel to the generator of the drum and eccentric relative to the axis of said drum. This makes it possible to use elements of identical radial length and to lengthen the drum of the wringer.
- the wringer can have either a horizontal, vertical or oblique axis.
- the perforated wall may be cylindrical, frustoconical or have any other form of director, in a broken or curvilinear line giving it a general cylindro-frustoconical shape, in coil, in barrel or other.
- the drum In the case of a frustoconical or cylindro-frustoconical shape the drum can be convergent or divergent from upstream to downstream.
- this preferably has its two ends at the same distance from the perforated wall or, in the case of a non-cylindrical perforated wall, at distances proportional to the radii of said perforated wall in the corresponding diametrical planes.
- the downstream end of the shaft may be at a distance from the perforated wall greater or proportionally greater than that of the upstream end.
- the longitudinal spacing of the neighboring radial elements must be smaller the less their axis of rotation, the lower the arc in which the radial elements cooperate with the mass of material, that is to say that the axis of rotation is closer to the wall, and that the angular spacing of the neighboring radial elements is greater.
- the radial elements can be arranged in the form of radial plies, possibly consisting of discs, spokes having a greater or lesser elasticity, masses such as brushes or foam rollers, worms or radial longitudinal plies such as continuous walls, pallets or rakes.
- the angle formed by the axis of rotation of the advancing member with the axis of the wringer drum is a function of the product to be treated and its mechanical characteristics as well as the desired flow rate.
- the larger this angle the higher the axial component of the peripheral speed of the advancing member relative to the diametrical component, but the more the peripheral speed of the radial elements of the advancing member will vary within wide limits. if they are attached to the same tree. Due to the increase in the axial component, the material flow will be increased.
- the speed of the wringer can, for a given spin speed, also be increased by increasing the number of advancing members acting on one revolution of the drum. It is also possible to increase the speed of rotation of the machine, but this is not always possible from the mechanical point of view or because of the mechanical resistance of the treated material.
- the wringer according to the invention can be used for the continuous dewatering of practically all mineral, animal or vegetable materials and in particular for the preliminary treatment of materials which must be subjected to drying by lyophilization, heating, etc.
- Mechanical spinning is an energy-efficient means of extracting loose water such as washing water, etc.
- the layer of material is stirred in the passage of the advancing members, which further facilitates the elimination of water compared to conventional wringing.
- the wringer comprises, in the various embodiments, a perforated wall of revolution 1 which is represented as a cylindrical wall, which is rotated in a known manner around its axis so that the centrifugal force exerted on the material applied against the wall is several times greater than the force of gravity.
- Reference 2 designates the perforations of which only a small number is shown.
- a shaft 3 In this enclosure and in the embodiment of Figures 1 to 4 is mounted obliquely by bearings not shown, a shaft 3.
- the points X where the shaft 3 intersects the end surfaces of the drum are equidistant from said surface.
- discs 4 On this shaft are mounted discs 4 which could be replaced by radial rods, pallets or the like depending on the nature of the material to be wrung. The diameters of these discs 4 or the lengths of the rods or the like are such that their peripheral end comes to substantially tangent to the interior surface of the wall 1. As illustrated in FIG.
- the angular development is determined according to which each disc will cooperate with the material.
- Figure 4 there is shown the discs with thicker milking 5 the part which cooperates with the material.
- the peripheral speed of the internal surface of the wall 1 being equal to F, the discs are driven or tend to set, if they are mounted with free rotation on the axis 3 or if the latter is mounted with free rotation, under the effect of the push of the material, a peripheral speed f which, at the point of tangency with the wall, decomposes into a speed fp substantially equal to F and a longitudinal component f1 directed downstream.
- the disks 6 which could be replaced by radial rods, flat foam cylinders, impellers with peripheral edges of the blades shaped in a barrel shape, worms having the same casing , etc. are each mounted on a shaft end 7, the successive shaft ends being joined by offset pieces 8 and all having the same orientation therefore being in the same plane.
- the discs 6 are therefore carried by the parallel axes of a zigzag support piece.
- the mechanical rigidity of the support part can result either from the rigid assembly between the parts 8 and the shaft ends 7 on which the discs 6 are mounted for free rotation, or from the fact that the parts 8 are supported by non-bracing shown connecting them, passing between the discs 6, with longitudinal crosspieces 9 fixed at their ends on the support pillars 10.
- the discs 6 can be rotated for example for each disc from a pulley 11 mounted on an axial shaft 12, by a pulley 13 of which it is integral and a belt 14. It is thus master of the peripheral speed f of each disc by playing on the diameter of the pulley 11 which may be of technical interest. It would also be possible to mount the advancement elements with free rotation. Finally it is possible to modify the nature of the advancement elements according to the direction of progression of the material in order to adapt them to the modification of fluidity and density of the dry matter and some of them may be blowing elements and / or heated.
Landscapes
- Centrifugal Separators (AREA)
- Extraction Or Liquid Replacement (AREA)
- Drying Of Solid Materials (AREA)
- Medicines Containing Plant Substances (AREA)
- Brushless Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Fats And Perfumes (AREA)
- Cyclones (AREA)
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82400571T ATE13819T1 (de) | 1981-03-31 | 1982-03-30 | Kontinuierlich arbeitende zentrifuge. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8106427 | 1981-03-31 | ||
FR8106427A FR2502985A1 (fr) | 1981-03-31 | 1981-03-31 | Essoreuse en continu |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0062576A1 EP0062576A1 (de) | 1982-10-13 |
EP0062576B1 true EP0062576B1 (de) | 1985-06-19 |
Family
ID=9256816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82400571A Expired EP0062576B1 (de) | 1981-03-31 | 1982-03-30 | Kontinuierlich arbeitende Zentrifuge |
Country Status (14)
Country | Link |
---|---|
US (1) | US4432148A (de) |
EP (1) | EP0062576B1 (de) |
JP (1) | JPS588978A (de) |
AT (1) | ATE13819T1 (de) |
CA (1) | CA1166443A (de) |
DE (1) | DE3264235D1 (de) |
DK (1) | DK156816C (de) |
ES (1) | ES510932A0 (de) |
FI (1) | FI69574C (de) |
FR (1) | FR2502985A1 (de) |
IE (1) | IE52722B1 (de) |
IL (1) | IL65393A (de) |
NO (1) | NO154040C (de) |
YU (1) | YU69782A (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4565015A (en) * | 1983-07-27 | 1986-01-21 | Gala Industries, Inc. | Centrifugal pellet dryer |
DE3430127C2 (de) * | 1984-08-16 | 1987-04-02 | Krauss-Maffei AG, 8000 München | Vorrichtung zum Trocknen von feinkörnigen Feststoffpartikeln |
JPS60177017U (ja) * | 1984-05-02 | 1985-11-25 | ザ・パツク株式会社 | 包装箱 |
DE4038954C2 (de) * | 1990-12-06 | 1994-02-10 | Wolfgang Eder | Verfahren zum Abtransportieren und Zentrifuge zur Durchführung des Verfahrens |
JPH06255636A (ja) * | 1993-02-26 | 1994-09-13 | Asahi Breweries Ltd | 天パットシート装着装置 |
AU4485796A (en) * | 1996-01-11 | 1997-08-01 | Interlicense Den Haag B.V. | Device and process for the aerobic treatment of organic substances |
US7958650B2 (en) * | 2006-01-23 | 2011-06-14 | Turatti S.R.L. | Apparatus for drying foodstuffs |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982001668A1 (en) * | 1980-11-12 | 1982-05-27 | Georg Schilp | Centrifuge with displaceable button for discharging solid material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE405373C (de) * | 1921-04-19 | 1924-11-04 | Alfred Hernscher | Mit staendigem Durchlauf arbeitende stehende Siebschleudermaschine |
US1564665A (en) * | 1923-07-16 | 1925-12-08 | Leroy G Gates | Centrifugal separator |
FR1057268A (fr) * | 1952-05-21 | 1954-03-08 | G Pepin Fils Aine Ets | Essoreuse à fonctionnement continu |
US3313034A (en) * | 1965-08-02 | 1967-04-11 | Leo J Meyer | Nut meat de-watering machine |
DE1632292A1 (de) * | 1967-06-16 | 1972-02-03 | Ernst Heinkel Maschb Gmbh | Siebzentrifuge |
-
1981
- 1981-03-31 FR FR8106427A patent/FR2502985A1/fr active Granted
- 1981-10-14 US US06/311,262 patent/US4432148A/en not_active Expired - Lifetime
-
1982
- 1982-03-29 CA CA000399702A patent/CA1166443A/en not_active Expired
- 1982-03-29 IE IE745/82A patent/IE52722B1/en not_active IP Right Cessation
- 1982-03-30 ES ES510932A patent/ES510932A0/es active Granted
- 1982-03-30 NO NO821054A patent/NO154040C/no unknown
- 1982-03-30 AT AT82400571T patent/ATE13819T1/de not_active IP Right Cessation
- 1982-03-30 EP EP82400571A patent/EP0062576B1/de not_active Expired
- 1982-03-30 YU YU00697/82A patent/YU69782A/xx unknown
- 1982-03-30 DK DK145382A patent/DK156816C/da not_active IP Right Cessation
- 1982-03-30 DE DE8282400571T patent/DE3264235D1/de not_active Expired
- 1982-03-30 FI FI821108A patent/FI69574C/fi not_active IP Right Cessation
- 1982-03-31 IL IL65393A patent/IL65393A/xx not_active IP Right Cessation
- 1982-03-31 JP JP57051478A patent/JPS588978A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982001668A1 (en) * | 1980-11-12 | 1982-05-27 | Georg Schilp | Centrifuge with displaceable button for discharging solid material |
Also Published As
Publication number | Publication date |
---|---|
ATE13819T1 (de) | 1985-07-15 |
ES8301670A1 (es) | 1983-02-01 |
DK145382A (da) | 1982-10-01 |
US4432148A (en) | 1984-02-21 |
FI821108A0 (fi) | 1982-03-30 |
EP0062576A1 (de) | 1982-10-13 |
ES510932A0 (es) | 1983-02-01 |
NO154040C (no) | 1986-07-09 |
IE820745L (en) | 1982-09-30 |
CA1166443A (en) | 1984-05-01 |
DE3264235D1 (en) | 1985-07-25 |
NO821054L (no) | 1982-10-01 |
IL65393A0 (en) | 1982-05-31 |
NO154040B (no) | 1986-04-01 |
FI821108L (fi) | 1982-10-01 |
FR2502985B1 (de) | 1983-05-20 |
FI69574B (fi) | 1985-11-29 |
DK156816B (da) | 1989-10-09 |
IL65393A (en) | 1985-03-31 |
YU69782A (en) | 1986-08-31 |
DK156816C (da) | 1990-02-26 |
FR2502985A1 (fr) | 1982-10-08 |
FI69574C (fi) | 1986-03-10 |
JPS588978A (ja) | 1983-01-19 |
IE52722B1 (en) | 1988-02-03 |
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