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US3770207A - Spray nozzle for a spray dryer - Google Patents

Spray nozzle for a spray dryer Download PDF

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Publication number
US3770207A
US3770207A US00247814A US3770207DA US3770207A US 3770207 A US3770207 A US 3770207A US 00247814 A US00247814 A US 00247814A US 3770207D A US3770207D A US 3770207DA US 3770207 A US3770207 A US 3770207A
Authority
US
United States
Prior art keywords
nozzle
spray
annular passageway
passageway
annular
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
US00247814A
Other languages
English (en)
Inventor
F Muller
W Kowalski
W Nolden
R Queck
J Koch
G Selbst
H During
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.)
Knapsack AG
Original Assignee
Knapsack AG
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 Knapsack AG filed Critical Knapsack AG
Application granted granted Critical
Publication of US3770207A publication Critical patent/US3770207A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/20—Sprayers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/061—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with several liquid outlets discharging one or several liquids

Definitions

  • PATENTED NDV 6 i975 SHEU 1 DF 2v FIGJ 1 SPRAY NOZZLE FOR A SPRAY DRYER This invention relates to a spray nozzle suitable for use in a spray-drying process.
  • a spray nozzle has already been described of which the upper part is made up of three tubular structures of different lengths, which are coaxially assembled so as to form an outer passageway and an inner passageway with an intermediate passageway therebetween.
  • a spray-inducing medium for example steam or compressed air
  • a solution or suspension to be sprayed is forced throughthe intermediate passageway, towards the nozzle head.
  • German Patent Specification No. 1,667,566, for example it is necessary for the intermediate annular passageway through which the solution issues to have a width of a fraction of a millimetre, and for the outer and inner annular passageways to have a width of a few millimetres, near the nozzle head.
  • the individual tubular structures undergo non-uniform expansion. For this reason, and because the temperatures prevailing in the spray tower have to be increased or reduced to give solid products of different physical or chemical properties, the tubular structures defining the individual annular passageways and terminating in the nozzle head are caused to move against each other. This relative movement is undesirable in itself, and it also affects the included angle between the frontal surface areas of the annular passageways and the horizontal, which angle determines the angle of emergence of the issuing spray solution or suspension and hence the throughput in the spray tower.
  • nozzles used in spraydrying processes use nozzle heads which normally have a service life between 30 and 200 hours. After that time, the nozzles (those of the prior art, that is) have to be dismantledcompletely and reassembled after replacement of worn components.
  • lt is an object of the present invention to provide a spray nozzle which is fitted with a readily exchangeable nozzle head and which is so designed as to prevent thermal expansion phenomena from producing relative movement of the tubular structures defining the annular passageways therein (i.e., movement of these structures against each other) and from affecting the included angle between the frontal surface areas of the said annular passageways and the horizontal.
  • FIG. l is a side elevational view of a spray nozzle according to the present invention, taken along line I--I of FIG. 2, and
  • FIG. 2 is atop plan view of the spray nozzle, taken along line II-II of FIG. l.
  • the spray nozzle comprises four principal parts, namely an upper part 1, a base plate 2, an intermediate plate 3 and a nozzle head 4.
  • the nozzles upper part 1 is provided with feed pipes 5, 9, l0, 11 and 13 for the supply of a solution to be sprayed and ofa spray-inducing medium.
  • Feed pipe 5, supplying the solution, opens into an extension of an axial compensator 15, which is provided for the purpose of evening out thermal expansion effects.
  • the nozzle head 4 comprises a plurality of, preferably four, passageway-defining rings 16, I17, 18 and 19, the ring 19 being secured to the intermediate plate 3 by means of a fastener, which in the construction shown comprises a bolt 22 and a bearing disc 23.
  • the basel plate 2 and intermediate plate 3 are fastened together by means of screws 21 (FIG. 2).
  • the solution to be sprayed flows through an annular chamber 6 and an intermediate annular passageway 7 into the intermediate passageway 8 lying between rings 17 and 18, and the spray-inducing medium is caused to flow through the inner feed pipe 9 and the outer feed pipes 13, which'are arranged cage-wise, into the inner passageway l2 lying between rings 18 and 19, and through an annular mixing chamber 20 into the outer passageway 14 lying between rings 16 and 17.
  • a spray nozzle according to the present invention comprises an upper part, e.g., as shown at l, which is provided with a feed pipe, e.g., as shown at 5, supplying the solution to be sprayed and with feed pipes, e.g., as shown at 9, 10, l1 and 13, supplying the spray-inducing medium, and with an axial compensator, e.g., as shown at l5; a base plate, e.g., as shown at 2, made up of rigid but elastic material and connected to two of the said feed pipes, which in the nozzle shown in the drawing are the pipes 9 and 13, and to the axial compensator; an intermediate plate, e.g., as shown at 3, and a nozzle head, e.g., as shown at 4, which substantially comprises a purality of passageway-defining rings, e.g., as shown at 16, 17, 18 and 19, and is secured by means of a fastener, e.g., as'shown at 22, to the intermediate plate, the base plate and intermediate
  • angle a for the angle a to be adjustable to values between 1 and 20, preferably between 2 and 10;
  • Parts which normally require replacement in the spray nozzle of the present invention are the passageway-defining rings 16, 17, 18 and 19. Itis therefore particularly advantageous for the spacer or intermediate plate 3 and the nozzle head 4 to be readily detachable from the nozzles upper part 1 and from the base plate 2, by unscrewing the screws 21. This can be done on the spray tower. As soon as a new spacer or intermediate plate 3 and nozzle head 4 have been screwed to the base plate 2, the spray nozzle is ready for operation.
  • the temperatures prevailing within the inner feed pipe 9 and in the annular chamber 6 or annular passageway 7 may be found to differ by more than 100C, if use is made of steam under a pressure of 15 atmospheres gauge, for example. As a result, the pipes affected by these temperatures are subject to nonuniform thermal expansion which, however, is evened out by means of axial compensator l5.
  • annular mixing chamber 20 to be formed, between the base plate 2 and nozzle head 4, within the intermediate plate 3.
  • the spray nozzle of the present invention can be used for the manufacture of solid salts from their solutions, for example sodium sulfate from an aqueous solution thereof, where it is merely necessary to remove the solvent (commonly water) therefrom.
  • Use can also be made of the present spray nozzle for the manufacture of those salts which are obtained only by the removal of chemically combined water, in addition to solvent water; it can thus be used, for example, for the manufacture of alkali metal polyphosphates from alkali metal orthophosphate solutions.
  • a spray nozzle for a spray dryer having an upper part provided with ⁇ a feed pipe for the supply of a solution to be sprayed, and with feed pipes for the supply of a spray-inducing means; and a nozzle head comprised of a plurality of ring-shaped members arranged concentrically with respect to each other so as to leave an inner annular passageway, an outer annular passageway and an intermediate annular passageway therebetween, the said nozzle comprising a base plate of hard-elastic and rigid material and an intermediate plate, both positioned between the upper part of the nozzle and the nozzle head and being detachably secured together; a plurality of feed pipes which are parallel with respect to the axis of the nozzle and arranged in a cage formation so as to form the outer boundary line of the upper part of the nozzle, and of which the ends are fast with base plate,-the said feed pipes introducing the spray-inducing medium into the outer annular passageway; inner feed pipe being disposed on the axis of the nozzle and
  • annular channel has a closed rear end remote from interchannel.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Nozzles (AREA)
US00247814A 1971-04-29 1972-04-26 Spray nozzle for a spray dryer Expired - Lifetime US3770207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2121066A DE2121066C3 (de) 1971-04-29 1971-04-29 Zerstäubungsdüse für einen Zerstäubungstrockner

Publications (1)

Publication Number Publication Date
US3770207A true US3770207A (en) 1973-11-06

Family

ID=5806333

Family Applications (1)

Application Number Title Priority Date Filing Date
US00247814A Expired - Lifetime US3770207A (en) 1971-04-29 1972-04-26 Spray nozzle for a spray dryer

Country Status (11)

Country Link
US (1) US3770207A (xx)
AT (1) AT317156B (xx)
BE (1) BE782731A (xx)
CA (1) CA952945A (xx)
CH (1) CH537744A (xx)
DE (1) DE2121066C3 (xx)
ES (1) ES402277A1 (xx)
FR (1) FR2136717A5 (xx)
GB (1) GB1357265A (xx)
IT (1) IT952797B (xx)
NL (1) NL158921B (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929291A (en) * 1973-05-24 1975-12-30 Pfrengle Otto Spray mixing nozzle
US4493636A (en) * 1981-03-05 1985-01-15 The United States Of America As Represented By The United States Department Of Energy Gasification system
EP0914870A1 (de) * 1997-11-06 1999-05-12 Herbert Hüttlin Mehrstoffzerstäubungsdüse mit konzentrischen Sprühöffnungen
US6045061A (en) * 1997-11-06 2000-04-04 Huettlin; Herbert Diffusing nozzle
US6056213A (en) * 1998-01-30 2000-05-02 3M Innovative Properties Company Modular system for atomizing a liquid
US20030044460A1 (en) * 2000-06-30 2003-03-06 Bennett David B. Spray drying process control of drying kinetics
WO2003051505A1 (en) * 2001-12-19 2003-06-26 Zambon Group S.P.A. Spray unit of a spray dryer
US20030124193A1 (en) * 2001-11-01 2003-07-03 Inhale Therapeutic System, Inc. Spray drying methods and related compositions
US20040018696A1 (en) * 2002-07-26 2004-01-29 Karsten Wieczorek Method of filling an opening in a material layer with an insulating material
WO2004058218A2 (en) * 2002-12-30 2004-07-15 Nektar Therapeutics Prefilming atomizer
US20050082391A1 (en) * 2002-11-15 2005-04-21 Lear Corporation External mix spray urethane process and nozzle used therefor
US20100331428A1 (en) * 2007-11-07 2010-12-30 Aridis Pharmaceuticals Sonic Low Pressure Spray Drying
WO2011128433A1 (de) 2010-04-16 2011-10-20 Dieter Wurz Aussen mischende mehrstoffdüse
US8173168B2 (en) 1994-03-07 2012-05-08 Novartis Pharma Ag Dispersible macromolecule compositions and methods for their preparation and use
US8273330B2 (en) 2002-04-25 2012-09-25 Nektar Therapeutics Particulate materials
US8802149B2 (en) 1996-12-31 2014-08-12 Novartis Pharma Ag Systems and processes for spray drying hydrophobic and hydrophilic components
US9700529B2 (en) 2002-05-03 2017-07-11 Nektar Therapeutics Particulate materials
US9724302B2 (en) 2010-04-09 2017-08-08 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US20170274380A1 (en) * 2014-09-08 2017-09-28 Uwe Weierstall Nozzle apparatus and methods for use thereof
US10369579B1 (en) * 2018-09-04 2019-08-06 Zyxogen, Llc Multi-orifice nozzle for droplet atomization
CN114699780A (zh) * 2022-03-22 2022-07-05 北京金轮坤天特种机械有限公司 一种超细团聚球形粉体直接制备的雾化器及粉体制备装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1010153B (it) * 1973-05-24 1977-01-10 Pfrengle O Ugello nebulizzatore di mescolan za
US4610760A (en) * 1984-08-24 1986-09-09 General Foods Corporation Three-fluid atomizing nozzle and method of utilization thereof
US10314435B2 (en) * 2016-07-03 2019-06-11 Geoff Hall Steam driven dish warmer
CN112516611A (zh) * 2019-09-17 2021-03-19 江苏瑞强干燥工程有限公司 一种气流喷雾式干燥机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511215A (en) * 1923-03-20 1924-10-14 Eagle Picher Lead Company Nozzle for atomizing molten metal
US1713260A (en) * 1927-04-12 1929-05-14 Edward F Chandler Spraying nozzle
US2836233A (en) * 1953-10-30 1958-05-27 Shell Dev Nozzle for gas burners and the like having circumferential slots
US3363840A (en) * 1964-05-25 1968-01-16 Babcock & Wilcox Ltd Liquid fuel burners

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511215A (en) * 1923-03-20 1924-10-14 Eagle Picher Lead Company Nozzle for atomizing molten metal
US1713260A (en) * 1927-04-12 1929-05-14 Edward F Chandler Spraying nozzle
US2836233A (en) * 1953-10-30 1958-05-27 Shell Dev Nozzle for gas burners and the like having circumferential slots
US3363840A (en) * 1964-05-25 1968-01-16 Babcock & Wilcox Ltd Liquid fuel burners

Cited By (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3929291A (en) * 1973-05-24 1975-12-30 Pfrengle Otto Spray mixing nozzle
US4493636A (en) * 1981-03-05 1985-01-15 The United States Of America As Represented By The United States Department Of Energy Gasification system
US8173168B2 (en) 1994-03-07 2012-05-08 Novartis Pharma Ag Dispersible macromolecule compositions and methods for their preparation and use
US8802149B2 (en) 1996-12-31 2014-08-12 Novartis Pharma Ag Systems and processes for spray drying hydrophobic and hydrophilic components
US6045061A (en) * 1997-11-06 2000-04-04 Huettlin; Herbert Diffusing nozzle
EP0914870A1 (de) * 1997-11-06 1999-05-12 Herbert Hüttlin Mehrstoffzerstäubungsdüse mit konzentrischen Sprühöffnungen
US6056213A (en) * 1998-01-30 2000-05-02 3M Innovative Properties Company Modular system for atomizing a liquid
US20030044460A1 (en) * 2000-06-30 2003-03-06 Bennett David B. Spray drying process control of drying kinetics
US8337895B2 (en) 2000-06-30 2012-12-25 Novartis Ag Spray drying process control of drying kinetics
US7575761B2 (en) 2000-06-30 2009-08-18 Novartis Pharma Ag Spray drying process control of drying kinetics
US20030124193A1 (en) * 2001-11-01 2003-07-03 Inhale Therapeutic System, Inc. Spray drying methods and related compositions
US8936813B2 (en) 2001-11-01 2015-01-20 Novartis Ag Spray drying methods and related compositions
US8524279B2 (en) 2001-11-01 2013-09-03 Novartis Ag Spray drying methods and related compositions
WO2003051505A1 (en) * 2001-12-19 2003-06-26 Zambon Group S.P.A. Spray unit of a spray dryer
US8273330B2 (en) 2002-04-25 2012-09-25 Nektar Therapeutics Particulate materials
US10945972B2 (en) 2002-05-03 2021-03-16 Nektar Therapeutics Particulate materials
US10188614B2 (en) 2002-05-03 2019-01-29 Nektar Therapeutics Particulate materials
US9700529B2 (en) 2002-05-03 2017-07-11 Nektar Therapeutics Particulate materials
US20040018696A1 (en) * 2002-07-26 2004-01-29 Karsten Wieczorek Method of filling an opening in a material layer with an insulating material
US20050082391A1 (en) * 2002-11-15 2005-04-21 Lear Corporation External mix spray urethane process and nozzle used therefor
US7967221B2 (en) 2002-12-30 2011-06-28 Novartis Ag Prefilming atomizer
JP4808970B2 (ja) * 2002-12-30 2011-11-02 ネクター セラピューティクス 噴霧乾燥システム
AU2003302329B2 (en) * 2002-12-30 2010-01-07 Novartis Ag Prefilming atomizer
WO2004058218A3 (en) * 2002-12-30 2004-09-30 Nektar Therapeutics Prefilming atomizer
WO2004058218A2 (en) * 2002-12-30 2004-07-15 Nektar Therapeutics Prefilming atomizer
US8616464B2 (en) 2002-12-30 2013-12-31 Novartis Ag Prefilming atomizer
US8268354B2 (en) 2007-11-07 2012-09-18 Aridis Pharmaceuticals Sonic low pressure spray drying
US8673357B2 (en) 2007-11-07 2014-03-18 Aridis Pharmaceuticals Sonic low pressure spray drying
US20100331428A1 (en) * 2007-11-07 2010-12-30 Aridis Pharmaceuticals Sonic Low Pressure Spray Drying
US9808424B2 (en) 2010-04-09 2017-11-07 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US10045941B2 (en) 2010-04-09 2018-08-14 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US9737483B2 (en) 2010-04-09 2017-08-22 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US9737482B2 (en) 2010-04-09 2017-08-22 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US9757336B2 (en) 2010-04-09 2017-09-12 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US10398648B2 (en) 2010-04-09 2019-09-03 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US9724302B2 (en) 2010-04-09 2017-08-08 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
US9730892B2 (en) 2010-04-09 2017-08-15 Pacira Pharmaceuticals, Inc. Method for formulating large diameter synthetic membrane vesicles
WO2011128433A1 (de) 2010-04-16 2011-10-20 Dieter Wurz Aussen mischende mehrstoffdüse
DE102010015497A1 (de) * 2010-04-16 2011-10-20 Dieter Wurz Außen mischende Mehrstoffdüse für minimalen inneren Wärmeübergang
US10252270B2 (en) * 2014-09-08 2019-04-09 Arizona Board Of Regents On Behalf Of Arizona State University Nozzle apparatus and methods for use thereof
US20170274380A1 (en) * 2014-09-08 2017-09-28 Uwe Weierstall Nozzle apparatus and methods for use thereof
US10369579B1 (en) * 2018-09-04 2019-08-06 Zyxogen, Llc Multi-orifice nozzle for droplet atomization
CN114699780A (zh) * 2022-03-22 2022-07-05 北京金轮坤天特种机械有限公司 一种超细团聚球形粉体直接制备的雾化器及粉体制备装置

Also Published As

Publication number Publication date
CA952945A (en) 1974-08-13
BE782731A (fr) 1972-10-27
DE2121066C3 (de) 1974-05-30
AT317156B (de) 1974-08-12
FR2136717A5 (xx) 1972-12-22
CH537744A (de) 1973-06-15
DE2121066B2 (de) 1973-10-25
GB1357265A (en) 1974-06-19
NL158921B (nl) 1978-12-15
DE2121066A1 (de) 1972-11-16
IT952797B (it) 1973-07-30
NL7205738A (xx) 1972-10-31
ES402277A1 (es) 1975-03-16

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