US3590899A - Rotor construction of thin film treatment apparatus - Google Patents

Rotor construction of thin film treatment apparatus Download PDF

Info

Publication number
US3590899A
US3590899A US854150A US3590899DA US3590899A US 3590899 A US3590899 A US 3590899A US 854150 A US854150 A US 854150A US 3590899D A US3590899D A US 3590899DA US 3590899 A US3590899 A US 3590899A
Authority
US
United States
Prior art keywords
tubular body
rotor
thin film
treatment apparatus
body means
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
Application number
US854150A
Other languages
English (en)
Inventor
Adolf Ulrich Liechti
Ulrich Kaspar Zbinden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luwa Ltd
Original Assignee
Luwa Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Luwa Ltd filed Critical Luwa Ltd
Application granted granted Critical
Publication of US3590899A publication Critical patent/US3590899A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
    • B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers

Definitions

  • a rotor for a thin film treatment apparatus which incorporates a central tubular body and a number of axially and radially extending rotor blades arranged about the periphery thereof.
  • the edges of the rotor blades confronting the tubular body possess connection tongues, or equivalent structure, which are connected, for instance by welding, with the surface of the tubular body.
  • connection tongues externally of the planes containing the side surfaces of the associated rotor blades are connected with the tubular body, and further, the rotor blades exhibit invented spaces arranged spaced from one another in the lengthwise direction. More specifically, these indented spaces extend centripetally over a portion of the radial width of the associated rotor blade from the lengthwise extending edge of such rotor blade facing away from the tubular body.
  • the present invention broadly relates to thin film treatment apparatus and, more specifically, deals with an improved rotor construction for such a thin film treatment apparatus.
  • a known physical construction of rotor for thin film treatment apparatus consists of a central tubular body which is rotatably supported at its ends in the housing of the treatment apparatus.
  • a drive shaft is coupled with one end of the central tubular body.
  • a plurality of rotor blades which are spaced about the periphery of the rotor body extend in the lengthwise direction thereof. These rotor blades generally protrude radially from the rotor body, the radially disposed lengthwise edges of such blades serving to distribute or wipe the material to be treated in a thin layer upon the generally cylindrical inner wall of the apparatus of the housing.
  • the rotor blades are flushly connected by welding with the tubular body along their radially inwardly disposed edges.
  • a rotor construction is also known to the art in which the rotor blades are welded through the agency of connection tongues with the tubular body.
  • the radially inwardly directed edge portions of the rotor blades disposed between the connection tongues are spaced from the surface of the tubular body.
  • Another more specific object of the present invention relates to an improved rotor construction having a unique and novel method of attachment of the rotor blades to the rotor body member.
  • Still a further significant object of the present invention relates to an improved construction of rotor assembly for a thin film apparatus which is relatively simple in construction, can be manufactured at reasonable cost, does not require any complicated or unwieldy manufacturing operations, is ex tremely reliable in operation, and specifically, prevents the occurrence of the problems enumerated above and experienced with the prior art constructions.
  • the inventive rotor is of the type incorporating a substantially central tubular body and a plurality of rotor blades arranged at the circumference of such tubular body, these rotor blades extending in the lengthwise direction of said tubular body.
  • Each of the rotor blades possesses a lengthwise extending edge which con fronts the tubular body and possesses connection tongue means, or equivalent structure, connected with the surface of the tubular body.
  • connection tongue means of the associated rotor blade are connected with the tubular body externally of the planes containing the side surfaces of the associated rotor blade.
  • each of the rotor blades possesses cutout portions which are spaced in lengthwise direction from one another and which extend over a portion of the width of the associated rotor blade from the lengthwise extending edge of such associated rotor blade facing away from the tubular body.
  • FIG. 1 schematically depicts a longitudinal sectional elevational view of a thin film treatment apparatus equipped with a rotor designed according to a first embodiment of the present invention
  • FIG. 2 is a sectional view of the rotor construction depicted in FIG. 1, taken along the line ll-II thereof;
  • FIG. 3 is an elevational view of a second embodiment of rotor construction according to the invention.
  • FIG. 4 is a sectional view of the rotor construction depicted in FIG. 3, taken along the line IV-IV thereof;
  • FIGS. 5 to 7 inclusive show three different respective forms of rotor blades at their wiper portion.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENT Describing now the drawings, and, more specifically, directing attention to the exemplary embodiment of thin film treatment apparatus, for instance a thin film evaporator, depicted in FIG. 1, it will be recognized that such embodies a housing 2 having an infeed connection or stud 4 for the influx of material to be treated.
  • the treated material leaves the apparatus housing 2 at a substantially funnel-shaped lower portion 6 from where it is withdrawn.
  • the rotor member generally designated by reference numeral 16 is supported at the stub shafts l2 and 14 in suitable bearing means 8 and 10, respectively.
  • This rotor 16 possesses a substantially centrally arranged cylindrical tubular body member 18 extending coaxially with respect to the stub shafts 12 and I4 and rigidly connected therewith.
  • rotor blades 20 About the periphery of the rotor body 18 there are uniformly arranged a number of rotor blades, and in this specific arrangement it will be seen that four such rotor blades 20 are provided. These rotor blades 20 extend in the lengthwise direction of the tubular body member 18 and, further, incorporate blade portions 22 which protrude in the radial direction from the rotor body member. Further, it will be recognized that the lengthwise edges or marginal portions 24 of the blade portions 22 facing away from the tubular body member 18 serve for distributing the treated material upon the generally cylindrical inner wall 26 of the housing 2 of the thin film treatment apparatus. On the other hand, the lengthwise extending edges 28 of the blade portions 22 confronting the tubular body member 18 incorporate or possess connection tongues 30 and 30 and 32 and 32', respectively.
  • connection tongues is used in its broader sense as describing attachment means, which may be in the form of tongues, tabs, flaps, or the like.
  • connection tongues 30 and 30' are flexed or bent with respect to the planar or flat blade portion 22 to opposite sides.
  • connection tongues 32 and 32 are flexed or bent with respect to the planar or flat blade portion 22 to opposite sides.
  • connection tongues 32 and 32 are also true.
  • a respective pair of these connection tongues 32 and 32 is provided at each of both ends of a rotor blade 20, whereas the connection tongues 30 and30 are distributively arranged between the ends of the associated blade uniformly over the length of such rotor blade 20.
  • connection tongues 30 and 30' are provided.
  • These connection tongues 30 and 30 and 32 and 32, respectively, are connected, typically by welding, with the tubular body member 18 along linearly directed and axially parallel edges 34.
  • these edges 34 are situated externally of the planes defining or containing the side faces or surfaces of the blade portions 22.
  • cutout portions or grooves 36 are provided at the free lengthwise edges 24 of each of the blade portions 22, these cutout portions 36 being distributively arranged, as shown, over the length of such associated blade portion.
  • cutout portions or indented spaces 36 are, in each instance, located at the region of a connecting tongue 30 and 30', respectively, and further, extend perpendicular to the associated lengthwise blade edge 24 over the width of the blade portion 22, as shown. In fact, such cutout portions can extend up to the root portion of the associated connection tongues 30, 30' as shown at 70.
  • the dreaded warping or bending of the tubular body, attributable to the relatively high material temperatures at the region of the treatment wall 26, can thus be faultlessly prevented.
  • connection tongues or flaps 40 are all of the same construction.
  • connection tongues 30, 30' and 32, 32' were flexed or bent about an axis parallel to the lengthwise edges 24 and 28, in this embodiment the connection tongues or flaps 40 are bent out of the plane of the blade portion 42 about an axis extending perpendicular to the lengthwise edges 44. Consequently, the welding seams 46 of the connection tongues or flaps 40 extend upon the outer surface of the tubular body 18 along a helical line.
  • connection tongue 40 possesses a portion 40' and a further portion 40", which, with respect to the blade portion 42, extend to opposite sides, in other words are disposed externally of the planes containing the respective side faces or surfaces of the blade portion 42. Hence, the associated portions of the welding edges 46 are also located outside of the mentioned planes.
  • portions or indented spaces 48, or equivalents are provided at the blade portion 42 of each blade, these cutout portions, insofar as construction, arrangement and function, corresponding to the cutout portions 36 of the preceding embodiment of FIGS. 1 and 2.
  • rotor blades or vanes depicted in FIGS. 5 and 6, respectively one is dealing with rotor blades of a rigid construction
  • a wiper blade 50 which can be pivotably connected through the agency of a suitable hinge or articulation ring member 52 with the rigid portion 54 of the associated rotor blade.
  • a rotor for a thin film treatment apparatus comprising, in combination, a substantially centrally arranged tubular body containing said side surfaces thereof.
  • a rotor for a thin film treatment apparatus as defined in claim I wherein a weld connection serves to secure said connection tongue means to said tubular body means.
  • connection tongue means extend from the associated rotor blade to peripherally spaced places on the tubular body means.
  • each mutually adjacent pair of connection tongue means are arranged spaced from one another in the axial direction of the associated rotor blade and are angled to opposite sides of the rotor blade.
  • connection tongue means are angled with respect to the associated rotor blades out of the planes 6.
  • connection tongue means are angled with respect to the associated rotor blades out of the planes 6.
  • each of said indented spaces is located at approximately the position of a connection tongue means along the rotor blade.
  • each indented space extends up to the root region of the associated connection tongue means.
  • connection location of said connection tongue means with said tubular body means extends along a substantially helical line at the surface of said tubular body means.
  • each indented space extends up to the region of the root portion of the associated connection tongue means.
  • a rotor for a thin film treatment apparatus comprising, in combination, a substantially centrally arranged tubular body means, at least one rotor blade having side surfaces and first and second opposed longitudinal edges, said rotor blade being secured to the outer circumference of said tubular body means, said rotor blade extending in the axial direction of said tubular body means, said rotor blade having an axially extending edge defined by said first longitudinal edge confronting but radially spaced from said tubular body means and possessing connection tongue means extending toward said tubular body means to peripherally spaced points on the surface of said tubular body means, at least a portion of said connection tongue means of the rotor blade being connected with said tubular body means at said peripherally spaced points on the surface thereof, said rotor blade further possessing indented spaces which are spacedly separated in the axial direction and which extend over at least a portion of the radial extent of the rotor blade from said second longitudinal edge of said rotor blade toward the tubular body means.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Surgical Instruments (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Making Paper Articles (AREA)
US854150A 1968-09-11 1969-08-29 Rotor construction of thin film treatment apparatus Expired - Lifetime US3590899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1360368A CH496934A (de) 1968-09-11 1968-09-11 Rotor für Dünnschichtbehandlungsapparat

Publications (1)

Publication Number Publication Date
US3590899A true US3590899A (en) 1971-07-06

Family

ID=4393812

Family Applications (1)

Application Number Title Priority Date Filing Date
US854150A Expired - Lifetime US3590899A (en) 1968-09-11 1969-08-29 Rotor construction of thin film treatment apparatus

Country Status (10)

Country Link
US (1) US3590899A (de)
JP (1) JPS4918350B1 (de)
AT (1) AT314478B (de)
BE (1) BE738085A (de)
CH (1) CH496934A (de)
DE (1) DE1940722C3 (de)
FR (1) FR2017762A1 (de)
GB (1) GB1266165A (de)
NL (1) NL6913777A (de)
SE (1) SE345227B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2484874C1 (ru) * 2012-02-06 2013-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Воронежский государственный университет инженерных технологий (ФГБОУ ВПО ВГУИТ) Цилиндрический ротационно-пленочный аппарат

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH523087A (de) * 1969-03-21 1972-05-31 Luwa Ag Dünnschichtbehandlungsapparat
DE4447421C1 (de) * 1994-12-30 1996-09-12 Fischer Karl Ind Gmbh Reaktorvorrichtung für Medien in fließfähigem Zustand
CN100509769C (zh) * 2006-04-27 2009-07-08 李宏才 α-磺基脂肪酸酯盐制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1308819A (en) * 1918-05-10 1919-07-08 Borden S Condensed Milk Company Evaporating apparatus.
US1576838A (en) * 1921-02-04 1926-03-16 Howard S Mellott Concentrator
US2024299A (en) * 1932-07-27 1935-12-17 Metcalfe-Shaw Edward Heat transference apparatus
US2542270A (en) * 1948-11-05 1951-02-20 Hurd Corp Scraper apparatus for centrifugal evaporators
US3067812A (en) * 1959-03-23 1962-12-11 Monsanto Chemcial Company Apparatus for devolatizing viscous fluids
US3311457A (en) * 1963-12-20 1967-03-28 Inventa Ag Liquid cascade reactor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1308819A (en) * 1918-05-10 1919-07-08 Borden S Condensed Milk Company Evaporating apparatus.
US1576838A (en) * 1921-02-04 1926-03-16 Howard S Mellott Concentrator
US2024299A (en) * 1932-07-27 1935-12-17 Metcalfe-Shaw Edward Heat transference apparatus
US2542270A (en) * 1948-11-05 1951-02-20 Hurd Corp Scraper apparatus for centrifugal evaporators
US3067812A (en) * 1959-03-23 1962-12-11 Monsanto Chemcial Company Apparatus for devolatizing viscous fluids
US3311457A (en) * 1963-12-20 1967-03-28 Inventa Ag Liquid cascade reactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2484874C1 (ru) * 2012-02-06 2013-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Воронежский государственный университет инженерных технологий (ФГБОУ ВПО ВГУИТ) Цилиндрический ротационно-пленочный аппарат

Also Published As

Publication number Publication date
SE345227B (de) 1972-05-23
DE1940722A1 (de) 1970-03-19
DE1940722B2 (de) 1973-08-23
FR2017762A1 (de) 1970-05-22
GB1266165A (de) 1972-03-08
BE738085A (de) 1970-02-02
JPS4918350B1 (de) 1974-05-09
CH496934A (de) 1970-09-30
DE1940722C3 (de) 1974-03-21
AT314478B (de) 1974-04-10
NL6913777A (de) 1970-03-13

Similar Documents

Publication Publication Date Title
US4241882A (en) Comminuting machine
DE2307967C2 (de) Plattform für eine Verdichterschaufel
US3695327A (en) Wiped thin film evaporation and treatment apparatus
DE3009863C2 (de)
JPH0546251B2 (de)
AU639502B2 (en) Roll for a device for continuous casting on a roll or between two rolls
US3590899A (en) Rotor construction of thin film treatment apparatus
DE19837580A1 (de) Rotor- und Stator-Einrichtung für eine Röntgenröhre
CH366694A (de) Strömungsmaschine
EP3545205B1 (de) Rotationssystem mit radialer gaslagerung
DE19708901A1 (de) Wellenbremsscheibe für Scheibenbremsanlagen von Schienenfahrzeugen
US4040768A (en) Mixing, conveying heating and/or cooling apparatus
DE69929749T2 (de) Schraubenpumpe
KR840001459A (ko) 회전 절삭공구
EP0493315B1 (de) Abdichtung
DE2101428A1 (de) Rotor einer Reibungskupplung
DE2819443A1 (de) Rotor fuer einen fliehkraftabscheider
DE2326016C3 (de) Turbogenerator mit supraleitender Erregerwicklung
DE2153486C3 (de) Rotorskelett für Drehspeicherwärmetauscher
US1909324A (en) Drier agitator
JPS5941806B2 (ja) 熱間金属片移送用ロ−ル
DE112018005071T5 (de) Kippsegmentlager
DE2717580C3 (de) Rotor einer elektrischen Maschine mit supraleitender Erregerwicklung
EP1420103B1 (de) Trockner, insbesondere Wäschetrockner
EP0220383B1 (de) Drehkolbenmaschine