US3652013A - Device for spray drying of liquids by means of hot gaseous medium - Google Patents

Device for spray drying of liquids by means of hot gaseous medium Download PDF

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Publication number
US3652013A
US3652013A US33736A US3652013DA US3652013A US 3652013 A US3652013 A US 3652013A US 33736 A US33736 A US 33736A US 3652013D A US3652013D A US 3652013DA US 3652013 A US3652013 A US 3652013A
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United States
Prior art keywords
nozzle
liquid
gaseous medium
sprayed
channel
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Expired - Lifetime
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US33736A
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English (en)
Inventor
Mikhail Vasilievich Lykov
Gleb Fedorovich Rybalchenko
Mikhail Alexeevich Korotkov
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/18—Evaporating by spraying to obtain dry solids

Definitions

  • ABSTRACT A device for spray drying of liquids by means of a hot gaseous medium fed to a convergent channel wherein there is a nozzle for a liquid being sprayed.
  • Said nozzle is arranged in a channel formed by the double walls of a hollow body of rotation, said body being placed inside the convergent channel and coaxial with the latter.
  • the present invention can be employed for drying substances possessing sufficient fluidity to be conveyed by pumps. These may be pulps of high-analysis mineral fertilizers, solutions of mineral salts, suspensions and solutions of matters in organic solvents, fusions and concentrated liquid polymeric materials.
  • the proposed device can be utilized in processing oil products, wood, resins, carnallite, bishofite, phosphorites, sewage water, and when producing sodium sulphate.
  • the device for spray drying of liquids comprising a convergent channel terminating in a cylindrical capping, coaxially with which a nozzle is arranged; the nozzle outlet is arranged within the capping limits with the possibility of an axial movement about it.
  • a spraying gaseous medium is fed to the convergent channel, a liquid to be sprayed being supplied to the nozzle.
  • the nozzle is protected against the high-temperature gas environment by means of an air jacket (cf. USSR Authors Cer tificate No. 157,279, C]. 82a, 40/10, 1963).
  • the primary object of the invention is to provide adevice for spray drying of liquids by means of a hot gaseous medium, the nozzle and the parts channeling said medium being so shaped as to ensure larger contact of the liquid drops with said medium.
  • the object of the invention is achieved by positioning the nozzle, through which a liquid to be treated is fed, in a channel formed by the double walls of a hollow body of rotation, said body being arranged inside the convergent channel and coaxial to the latter.
  • the channel in the device be made tapered toward the nozzle shear, which helps make more stable the motion of the hot gaseous medium at the place of effusion of the liquid being treated.
  • nozzles can be provided in the channel. These can be made cylindrical.
  • An advantage offered by this invention is a far greater capacity of the new device for spray drying of liquids, which exceeds that of the conventional devices not less than tenfold, at a slight increase of the dimensions of said device being slightly bigger.
  • FIG. I is the longitudinal section of the device of the invention (first variant);
  • FIG. 2 ditto, bottom view
  • FIG. 3 is another embodiment of the device of the invention (longitudinal section), and
  • FIG. 4 ditto, bottom view.
  • the device for spray drying of liquids by means of a hot gaseous medium comprises a convergent channel 1 (FIGS. 1 and 2) attached to a cylindrical pipe 2 by means of bolts 3.
  • a convergent channel 1 (FIGS. 1 and 2) attached to a cylindrical pipe 2 by means of bolts 3.
  • a hollow body 4 of rotation Provided inside the convergent channel 1 and coaxial with the latter is a hollow body 4 of rotation, whose double walls form a channel 7 tapered in longitudinal section.
  • the channel 7 communicates with receiver pipes 8.
  • Said nozzle 9 has connection with a receiver pipe 10. Annular clearances at the shear of the nozzle 9 between the nozzle walls and those of the cylinder 4 are to be welded.
  • a spraying gaseous medium is fed to the pipe 2 from which it flows to the convergent channel 1, wherein it steams both outside and inside the hollow body 4 of rotation.
  • a liquid to be sprayed is fed to the receiver pipe 10, from which it goes to the nozzle 9 and further toward its shear, wherein it is picked up by the flow of the gaseous medium, escaping from the convergent channel 1 and the body 4.
  • the dispersion of the liquid takes place.
  • the positioning of the body 4 inside the convergent channel 1 permits to increase the contact of the gaseous spraying medium with the liquid being dispersed and, consequently, to carry out the process of drying the liquid being dispersed (even the thermosensitive one) under a temperature higher than that required in the conventional devices. This temperature may exceed l,000 C., not causing the overheating of the liquid, for in this case much heat is consumed to evaporate the moisture within a relatively short period of time.
  • the nozzle 9 can have longitudinal partitions 12 (FIG. 2) separating the slot formed by the nozzle walls. Such is the case when it is necessary to disperse the flow of the liquid being sprayed and thus obtain a required size of drops beyond the nozzle shear.
  • the channel 7 can accommodate several cylindrical nozzles 13 (FIGS. 3 and 4) welded to a distribution manifold 14 with which the receiver pipes 10 are communicating.
  • a flat bottom 15 is provided from below between the double walls of the body 4.
  • the hollow body 4 of rotation should be best shaped as a hollow chamfered cone having double walls.
  • a device for spraying and drying liquids by means of a hot gaseous medium comprising:
  • a nozzle for supplying the liquid being sprayed comprising a series of pipes arranged in a circular manner within said channel;

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Solid Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US33736A 1970-05-01 1970-05-01 Device for spray drying of liquids by means of hot gaseous medium Expired - Lifetime US3652013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3373670A 1970-05-01 1970-05-01

Publications (1)

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US3652013A true US3652013A (en) 1972-03-28

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Application Number Title Priority Date Filing Date
US33736A Expired - Lifetime US3652013A (en) 1970-05-01 1970-05-01 Device for spray drying of liquids by means of hot gaseous medium

Country Status (3)

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US (1) US3652013A (cs)
FR (1) FR2092977A5 (cs)
NL (1) NL7006482A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564143A (en) * 1981-05-15 1986-01-14 Francois Touze Hot-blast nozzles, particularly for blast furnaces
CN102834168A (zh) * 2010-04-09 2012-12-19 迪特尔·沃尔兹 用于将次生流体喷入初生流体里的喷雾系统和方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050262A (en) * 1960-12-12 1962-08-21 Curtis Automotive Devices Inc Nozzle for production of fog or mist
US3141615A (en) * 1961-12-18 1964-07-21 Lowndes Engineering Company In Process and apparatus for producing a fog
US3161985A (en) * 1963-04-29 1964-12-22 Velsicol Chemical Corp Fog generator
US3177629A (en) * 1961-10-03 1965-04-13 Western Electric Co Apparatus for loading components
US3292859A (en) * 1965-08-13 1966-12-20 Polymer Eng Corp Process and gun for use in application of particulate materials

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050262A (en) * 1960-12-12 1962-08-21 Curtis Automotive Devices Inc Nozzle for production of fog or mist
US3177629A (en) * 1961-10-03 1965-04-13 Western Electric Co Apparatus for loading components
US3141615A (en) * 1961-12-18 1964-07-21 Lowndes Engineering Company In Process and apparatus for producing a fog
US3161985A (en) * 1963-04-29 1964-12-22 Velsicol Chemical Corp Fog generator
US3292859A (en) * 1965-08-13 1966-12-20 Polymer Eng Corp Process and gun for use in application of particulate materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4564143A (en) * 1981-05-15 1986-01-14 Francois Touze Hot-blast nozzles, particularly for blast furnaces
CN102834168A (zh) * 2010-04-09 2012-12-19 迪特尔·沃尔兹 用于将次生流体喷入初生流体里的喷雾系统和方法

Also Published As

Publication number Publication date
NL7006482A (cs) 1971-11-03
FR2092977A5 (cs) 1972-01-28
DE2019478A1 (de) 1971-11-04
DE2019478B2 (de) 1975-05-22

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