US830521A - Vacuum-drier. - Google Patents

Vacuum-drier. Download PDF

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Publication number
US830521A
US830521A US27141705A US1905271417A US830521A US 830521 A US830521 A US 830521A US 27141705 A US27141705 A US 27141705A US 1905271417 A US1905271417 A US 1905271417A US 830521 A US830521 A US 830521A
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liquid
vacuum
drying
drum
drier
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US27141705A
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Emil Passburg
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    • 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
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/041—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum for drying flowable materials, e.g. suspensions, bulk goods, in a continuous operation, e.g. with locks or other air tight arrangements for charging/discharging

Definitions

  • drum does not come into contact, owing to the such as paints and the like.
  • Patented Sept. 111, 1906 Patented Sept. 111, 1906.
  • the object of this invention is to remove this disadvantage and' toallow of producing with perfect efficiency vacuum-drying appaacts on the upper liquid layers, which gradually become poorer in mechanical admixtures, so that uniform and complete drying-is prevented.
  • the means adopted for this pur ose according to the present invention su stantially consist in continuously stirring or agitating the liquid mass at the bottom of the vacuum-chamber and that the solid constituents about to be deposited are dis ersed and brou ht into contact with the we 1s of the rotary rum.
  • the stirrin and agitating of, the liquid" mass can be e ected by means of any suitable known device-for instance, by means of the device illustrated in the annexed drawings, in
  • Figure 1 is a cross-section, and Fig. 2 a longitudinal section, of the improved apparatus.
  • the vacu -chamber a is provided at its lower part with bearings for the axles b,'which with blades 0 or the like, so arranged that they mesh with each other and that during the rotation of the axles the outer edges of the lower blades pass within a very short distance of the bottom of the chamber a, and thus eifectively prevent the formation of a deposit on the said bottom.
  • One of the axles b is connected, by means of the gear-train e, with the axle d of the drying-drum and serves, to drive the other axles b by means of suitable toothed wheels.
  • the drying-drum may beheated by any suitable means, such as a hot fluid, introduced through ipe f and discharged through a pipe g, both through the axles of the drying-drum.

Description

PATENTED SEPT. 11, 1906. E PASSBURG VACUUM DRIER.
APPLICATION FILED JULY 27 1905 Invenior:
I ufl "bty.
5. w &
"drum does not come into contact, owing to the such as paints and the like.
UNITED srA-rns PATENT OFFICE.
EMIL PAssBURe, or BERLIN, GERMANY.
VACUUM-DRIER.
- Specification of Letters Patent.
Patented Sept. 111, 1906.
Application filed-Tuly 27,1905. Serial median.
vacu'um-driers.
The known vacuum-driers in which heated rotary drying-drums are used are highly suitable for drying various liquid or semibut are not suitable for liquid .substances,
treating substances the'solid constituentsof which rapidly settle or form deposits, as is, for. instance, the case with past mixtures,
' ith semiliquid masses of this kind the deposits formed settle at the bottom of the vacuum-chamber in more or less thick layers, with which the fact that for eflicicnt workingthe said drum must only extend into the mass to a comparatively slight depth, and therefore only The object of this invention is to remove this disadvantage and' toallow of producing with perfect efficiency vacuum-drying appaacts on the upper liquid layers, which gradually become poorer in mechanical admixtures, so that uniform and complete drying-is prevented.
ratus of the kind referred to for dryin liquid substancesin which sediments oreposits are rapidly formed. The means adopted for this pur ose according to the present invention su stantially consist in continuously stirring or agitating the liquid mass at the bottom of the vacuum-chamber and that the solid constituents about to be deposited are dis ersed and brou ht into contact with the we 1s of the rotary rum.
The stirrin and agitating of, the liquid" mass can be e ected by means of any suitable known device-for instance, by means of the device illustrated in the annexed drawings, in
whichuseful Improvements in are provided -0 which pipes may extend in presence of two Witnesses.
Figure 1 is a cross-section, and Fig. 2 a longitudinal section, of the improved apparatus.
The vacu -chamber a is provided at its lower part with bearings for the axles b,'which with blades 0 or the like, so arranged that they mesh with each other and that during the rotation of the axles the outer edges of the lower blades pass within a very short distance of the bottom of the chamber a, and thus eifectively prevent the formation of a deposit on the said bottom.
One of the axles b is connected, by means of the gear-train e, with the axle d of the drying-drum and serves, to drive the other axles b by means of suitable toothed wheels. The drying-drum may beheated by any suitable means, such as a hot fluid, introduced through ipe f and discharged through a pipe g, both through the axles of the drying-drum.
What I claim as my invention, and desire to secure by Letters Patent of, the United States, is v y 1. In an apparatus for drying liquid substances containing rapidly-settling solid con- 7 stituents, the combination of" a casing to hold the li uid, an inner drum adapted to rotate throug the liquid, and means independent of the drum for stirring the liquid at the [bottom of the casing.
2. In an apparatus for drying in 'vacuo liquid substances containing rapidly settling solid constituents, the combination of a cylindrical casing to hold the liqull, an inner drum adapted to rotate through the liquid, and blades adapted to rotate through the liquid between-the drum and the bottom of the casing.
In testimonywhereof I affix my signature EMIL P As'sBURG. Witnesses: WOLDEMAR HAUPT,
Louis LIEBENTHAL.
US27141705A 1905-07-27 1905-07-27 Vacuum-drier. Expired - Lifetime US830521A (en)

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US27141705A US830521A (en) 1905-07-27 1905-07-27 Vacuum-drier.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517857A (en) * 1946-07-11 1950-08-08 Baker Perkins Inc Drier
US3578071A (en) * 1968-04-11 1971-05-11 Univ Newcastle Concentric evaporation-condensation, rotary, thin film, heat transfer apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517857A (en) * 1946-07-11 1950-08-08 Baker Perkins Inc Drier
US3578071A (en) * 1968-04-11 1971-05-11 Univ Newcastle Concentric evaporation-condensation, rotary, thin film, heat transfer apparatus

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