US853260A - Vacuum drying apparatus. - Google Patents
Vacuum drying apparatus. Download PDFInfo
- Publication number
- US853260A US853260A US27141805A US1905271418A US853260A US 853260 A US853260 A US 853260A US 27141805 A US27141805 A US 27141805A US 1905271418 A US1905271418 A US 1905271418A US 853260 A US853260 A US 853260A
- Authority
- US
- United States
- Prior art keywords
- bands
- tubes
- rollers
- liquid
- vacuum drying
- 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
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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
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/023—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the material being a slurry or paste, which adheres to a moving belt-like endless conveyor for drying thereon, from which it may be removed in dried state, e.g. by scrapers, brushes or vibration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/17—Two liquids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S159/00—Concentrating evaporators
- Y10S159/906—Wick
Definitions
- FIG. l is a vertical section of a vacuum drying -apparatus with vertical drying bands
- Fig. 2 is a horizontal crosssection-through the casing upon a plane indicated bythe line 2 2 ⁇ in Fig. 1, showing the interior of ⁇ the apparatus in plan withthe Scrapers mand the feed tubes h omitted.
- Figs. 3,4 and.5 are detail views on an enlarged scale representing various means' for bringing the liquid on to the drying bands
- Fig. '6 is a vertical longitudinal section showing a vacuum drying apparatus with horizontal dryin bands
- Fig. 7 is a vertical cross-section
- Fi s. 8 and 9 are detail sections lshowingrnodiiications of the rollers which carry the drying bands'.
- the upright cylindricalfdrumv or casing V forms the vacuum chamber, which surrounds the vertical plates a tubes b or otherl suitable heating .means in4 which steam or hot water or another suitable heating medium suchasfhot air or the like is caused to circulate. ⁇
- the heated fiuid may be introduced through such means as tubes g.
- Endless bands c are mounted on pairs of ro- Speeicaton of Letters Patent.
- 'lower and upper ⁇ distributingv or feed Vtatable' rollers t' andyd are caused to tubes e and h respectively-are used, which may receivel liquid from supply tubes 'u and are either provided with small closely arranged holes or tubular nozzles f (Fig. 3) or slots with-a filling of wick (Fig. 4) or without said filling (Fig. 5).
- the li uid flows from the openings on to thebands either inthe form of drops or. in a thin layer.
- the upwardly traveling surfaces of the bands are supplied witlrliquid by the lower distributing or feed tubes e and the downwardly traveling surfaces by the upper distributing or feed tubes h. i
- the quantity of liquid supplied to the bands may lbe regulated by some such means as a valve ers i or d as the case may be, it will be dried to the extent desired. At the point where these bands pass round the rollers the dried material is completely or partly loosened and falls and by means of scrape'rs 'm and o any band is .completely removed therefrom.
- a valve ers i or d as the case may be
- Partitions W ⁇ may be arranged between the bands to prevent' the falling dried mat rial from coming in contactwith the b@ ds charged with theliquid and for the same purpose the upper rollers t may be given a (Fig. 8).' I l
- the dried falling material passes into the screw ,conveyer S and is removed therefrom either to undergo a supplementary drying 1n into a receptacle of known kind whenceit is removed by known means with or without the drylng bands are arranged 1n planes.
- the drying bands may of course be driven dried material which may remainy on the a ⁇ drying cylinder with stirring apparatus ,or
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
Description
PATUNTUU MAY 14, 1907.
U. PAssBURG. VACUUM URYING APPARATUS.
APPLIO-ATION FILED JULY'27, 1905.
2 SHEETS-SHEET 1.
PATEN'A'UD MAY 14, 1907. E. PAssBURG. VACUUM DRYING APPARATUS.l
APPLICATION FILED JULYZ?, 1905. l
2 SHEETS-.SHEET 2.
u UNITED sTATEs/ PATENT oEEicE.
EME. PAssBURG, or BERLIN, GERMANY.`
vAcuuwl DRYING APPARATUS..
To alt whom-it 'may concern:l
Beit known that I, EMrL PAssBURG, a' subject of the German Emperor, residing at Berlin, in Germany, have'invented certain new and useful Improvementsin Vacuum Drying Apparatus for the Production of Coarse- Grained Materials from Liquids, of which the oration due to the vacuum, bubbles. are, formed which dry in this-shape and drop by l gravity'at the point where the bandsY pass round their supporting and driving rollers, or
vare loosened by Scrapers in such a manner that the coarse structure of the material is'y preserved and the lformation of pulverized materials prevented. The heating bclies.
and the drying bands' can be arranged in a horizontal or vertical direction as required. In the accompanying drawing Figure l is a vertical section of a vacuum drying -apparatus with vertical drying bands, Fig. 2 is a horizontal crosssection-through the casing upon a plane indicated bythe line 2 2 `in Fig. 1, showing the interior of `the apparatus in plan withthe Scrapers mand the feed tubes h omitted. Figs. 3,4 and.5 are detail views on an enlarged scale representing various means' for bringing the liquid on to the drying bands, Fig. '6 is a vertical longitudinal section showing a vacuum drying apparatus with horizontal dryin bands, Fig. 7 is a vertical cross-section, of ig. 6, Fi s. 8 and 9 are detail sections lshowingrnodiiications of the rollers which carry the drying bands'.
Referring to Figs. 1 and 2 the upright cylindricalfdrumv or casing V forms the vacuum chamber, which surrounds the vertical plates a tubes b or otherl suitable heating .means in4 which steam or hot water or another suitable heating medium suchasfhot air or the like is caused to circulate.` The heated fiuidmay be introduced through such means as tubes g.
'and may bedischarged through tubes r.
Endless bands c are mounted on pairs of ro- Speeicaton of Letters Patent.
Application, filed July 27,1905. Serial No. 271.418.
Patented May 14, 1907.
travel on said rollers as close as possible past the heating devices a or b. The axles of the rollers-maybe driven by. sprocket wheels s provided withchains t or by some other suitable means, from any suitable driving device (not shown). l L
For supplying lthe liquid to be dried to the bands, 'lower and upper` distributingv or feed Vtatable' rollers t' andyd and are caused to tubes e and h respectively-are used, which may receivel liquid from supply tubes 'u and are either provided with small closely arranged holes or tubular nozzles f (Fig. 3) or slots with-a filling of wick (Fig. 4) or without said filling (Fig. 5). The li uid flows from the openings on to thebands either inthe form of drops or. in a thin layer. The upwardly traveling surfaces of the bands are supplied witlrliquid by the lower distributing or feed tubes e and the downwardly traveling surfaces by the upper distributing or feed tubes h. i
at the particular rate of speed desired and the quantity of liquid supplied to the bands may lbe regulated by some such means as a valve ers i or d as the case may be, it will be dried to the extent desired. At the point where these bands pass round the rollers the dried material is completely or partly loosened and falls and by means of scrape'rs 'm and o any band is .completely removed therefrom. On
distributing tubes e and h;A r
Partitions W `may be arranged between the bands to prevent' the falling dried mat rial from coming in contactwith the b@ ds charged with theliquid and for the same purpose the upper rollers t may be given a (Fig. 8).' I l The dried falling material passes into the screw ,conveyer S and is removed therefrom either to undergo a supplementary drying 1n into a receptacle of known kind whenceit is removed by known means with or without the drylng bands are arranged 1n planes.
The drying bands may of course be driven dried material which may remainy on the a `drying cylinder with stirring apparatus ,or
p; so that when the liquid arrives at the rollp further movement of said bands they are Aat once again supplied with fresh liquid by thel larger diameter than the lower rollers d interruption of the vacuum in the drying apl horizontal i o The liquid flows from a receptacle. l through tubes u to the distributing yor feed tubes e and h, which-'distribute liquid in -the point where thebandc passes round the roller d the said'band passingthe distributing .tubes containing the liquid is again supplied with liquid from below throu h the tubes e, the distributionbeing' preferably eected in drops or in a thin layer. Instead of the dis` tributing tubes e and h'slot like openings can also be arranged from which the liquid iows in a thin layer and moistens the band-. The drops or thin layers of previously. concentrated and therefore thick or viscous liquid remain on the'lowei': surface vof the band c, owing toadhesion and form bubbles durilg the rapid evaporation by reason of the vacu'd um and when dried drop at .the point where the band passes round the rollers d and in lIn order that the bands c may pass the heatingV devices as closely as possible, the rollers" and i may be given a diameter slightljy7 smaller than the hei ht of said heatin del vices a. (Fig. 9) Te band c and the ing bodies cil may be arranged either vertically or horizontally in the casing. l
eat-
I claim as 'nyinventioli; l." In a vacuum drying apparatus the combination of heatingdevicesl located side by side, rollers at the ends of these heating devices, an endless transportingband passing over each pair of rollers, and two feed tubes for the liquid to be dried on the transporting band, the feed tubesbeing located at opposite ends of and on opposite sides of the corresponding heating device, substantially'as l endless `transporting band passingover each A pair of rollers, two'feed. tubes for theliquid to be dried on the transporting band, the feedtubes being located at opposite ends of and/ on opposite sides of the corresponding heating device, and a pair of Scrapers for the removal of the dried material from each band ,substantially as described.
Injtestimony whereof I affix my signature in lpresence of'two witnesses.
\ EMIL PASSBURG.
Witnesses:l
WOLDEMARHAUP'L-'` Louis LIEBENTHAL
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27141805A US853260A (en) | 1905-07-27 | 1905-07-27 | Vacuum drying apparatus. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27141805A US853260A (en) | 1905-07-27 | 1905-07-27 | Vacuum drying apparatus. |
Publications (1)
Publication Number | Publication Date |
---|---|
US853260A true US853260A (en) | 1907-05-14 |
Family
ID=2921717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US27141805A Expired - Lifetime US853260A (en) | 1905-07-27 | 1905-07-27 | Vacuum drying apparatus. |
Country Status (1)
Country | Link |
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US (1) | US853260A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3210260A (en) * | 1962-05-14 | 1965-10-05 | Foster Wheeler Corp | Apparatus for distillation of saline water to produce fresh water |
US3970512A (en) * | 1971-08-09 | 1976-07-20 | Ismail Zulfugarovich Makinsky | Falling film evaporator |
US4012846A (en) * | 1975-07-28 | 1977-03-22 | Silva Rene N | Apparatus for concentrating liquid-solid mixture |
-
1905
- 1905-07-27 US US27141805A patent/US853260A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3210260A (en) * | 1962-05-14 | 1965-10-05 | Foster Wheeler Corp | Apparatus for distillation of saline water to produce fresh water |
US3970512A (en) * | 1971-08-09 | 1976-07-20 | Ismail Zulfugarovich Makinsky | Falling film evaporator |
US4012846A (en) * | 1975-07-28 | 1977-03-22 | Silva Rene N | Apparatus for concentrating liquid-solid mixture |
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