US2889873A - Spray drying apparatus - Google Patents

Spray drying apparatus Download PDF

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Publication number
US2889873A
US2889873A US551623A US55162355A US2889873A US 2889873 A US2889873 A US 2889873A US 551623 A US551623 A US 551623A US 55162355 A US55162355 A US 55162355A US 2889873 A US2889873 A US 2889873A
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US
United States
Prior art keywords
liquid
gas
disc
deposits
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
Application number
US551623A
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English (en)
Inventor
Sauter Karl
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
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Luwa Ltd
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Filing date
Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C1/00—Concentration, evaporation or drying
    • A23C1/04—Concentration, evaporation or drying by spraying into a gas stream
    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1021—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery
    • B05B3/1028—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with individual passages at its periphery the passages comprising an insert
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1057—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces with at least two outlets, other than gas and cleaning fluid outlets, for discharging, selectively or not, different or identical liquids or other fluent materials on the rotating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/001—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements incorporating means for heating or cooling, e.g. the material to be sprayed
    • 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
    • Y10S159/09—Two liquids dried simultaneously

Definitions

  • This invention relatesto spray drying methods and apparatus and more particularly relates to a method and apparatus for avoiding unwanted deposits which necessitate frequent equipment shut down for cleaning.
  • lt is another object of the invention to provide a novel method and centrifugal atomizer apparatus wherein unwanted deposits are prevented from forming between the fixed and vmoving parts of the apparatus.
  • Figure 1 is a vertical section of a spray drying apparatus constructed according to one embodiment of the invention.
  • Figure 2 is a vertical cross section through a spray drying apparatus constructed according to another embodiment of the invention.
  • Figure 3 is a vertical section through a spray drying apparatus constructed according to still another embodiment 'of the invention.
  • housing 16 is inserted into the dryerl container, shown partially at 26, which forms the atomizing chamber.
  • Container 26 includes an aperture 27 for delivering a drying gas to the container.
  • the oil for lubrication of bearing 18 may be delivered to the bearing from above and is thence conveyed past the splash ring 28 to the oil catching bowl 30 located in bearing support 22. From here the oil is removed by means of a suitable conduit, not shown.
  • a labyrinth seal 32 is mounted on the bearing support 22 to prevent the oil from running down along the shaft 10 into the drying chamber.
  • the liquid to be evaporated is carried through a pipe, not shown, to ring duct 34 in bearing support 22 and from'here is delivered through liquid supply tubes 36 into the cavity 38 in the atomizer disc 12.
  • 'Ihe ring duct Se is otherwise closed by means of a cover plate 40 which is received on a shoulder 42 in the housing 16 and the housing extends down below the cover plateV to form a peripheral skirt 44 which terminates in close proximity to the disc 12.
  • the liquid supply tubes 36- are carried by the cover plate 40.
  • the atomizer disc 12 is dish shaped and is provided with an upwardly extending rim 46 having radial nozzles 48 therein. The upper portion of the rim 46 carries an inwardly extending tlange 50 which serves as a means for mounting a covering ring S2.
  • the liquid entering the annular cavity 38 in the atomizer disc is projected towards the rim under the influence of centrifugal force and is sprayed through radial nozzles 48 into the drying chamber, where it is emitted as a haze in the surrounding drying gas.
  • the atomizing disc tends to become heated to the temperature of the hot drying gas normally utilized and the uid itselffrequently enters the apparatus at a high temperature. Under these conditions, and even under conditions where the liuid enters atroom temperature, the fluid leaving the supply tubes 36 and spreading across the bottom of the cavity 38 is immediately heated, so that a certain amount of evaporation occurs inside the disc. This leads to thel accumulation of deposits in the vicinity of the supply tubes 36 and the shaft 10 and these deposits grow until they contact the tubes 36 to cause eventual slowing of the disc, loading of the motor and shut down for cleaning.
  • the high temperature of the disc causes a burning of the deposits so that if any of the ⁇ deposits, shut downs and contamination are avoided by means of a wet gas cushion which preferably contains a vapor of the same liquid as carries the substance to be extracted.
  • This vapor is preferably present in an amount suicient to create a partial pressure of the vapor in the gaseous mixture equal to or higher than the saturated vapor pressure of the particular liquid which carries the substance to be extracted.
  • the gas cushion should consist of air at a temperature of approximately 50 C. containing a quantity of water vapor or steam at a temperature of at least 50 C. and in an amount -suthcient to create a partial pressure equal to the saturated vapor pressure of water at 50 C.
  • the proper mixture of cushion gas is obtained in an annular chamber 56 into which air is admitted by means of conduit 58 and steam is admitted by means of conduits 60 and 62 having outlets 64.
  • the steam or water vapor may be produced in any suitable manner, such as in a boiler, and then introduced into conduits 60 and 62. Where the desired temperature of the water vapor is relatively low, as in the foregoing example, it is obvious that some reduction in the temperature of the steam is necessary, with the partial pressure of the vapor being controlled by the amount of water vapor introduced into the cushion gas.
  • Apertures 66 are provided in the cover plate 40 and these admit the cushion gas into the space 54 between the cover plate 40 and the covering ring 52.
  • the cushion gas is preferably supplied at a pressure slightly in excess of the pressure of the drying air in the drying chamber it expels the drying air from the space 54 and effectively eliminates evaporation of liquid and build up of deposits in this area.
  • the small clearance between the peripheral skirt 44 and disc 12 facilitates this action and prevents any inflow of drying gas.
  • the undersideof cover plate 40 is provided with radial vanes 68, two of which are shown in cross section in Figure l, which tend to limit the rotational movement of the gas.
  • the clearance between the lower edge 44 of the housing 16 and the upper surface of the rim 46 of the disc 12 is preferably kept at a It will be appreciated that in the spray driers heretofore utilized small clearances of this type have been impractical, since the rapid accumulation of deposits at these points caused shut down of the apparatus after only a short period of operation.
  • FIG. 1 illustrates one type of spray drier incorporating the invention
  • the principle of the invention may be applied to a wide variety of spray driers and a second embodiment of apparatus is shown in Figure 2.
  • the shaft 70 passes through a labyrinth seal 72 carried by the cover plate 74 which closes the lower end of the housing 76.
  • a dish shaped spray disc 7S having an upstanding peripheral rim is attached to the shaft 70 by means of a nut 82.
  • the upper opening in the spray disc is closed by means of a covering ring 84 which engages the rim 80 and the rim is provided with spray nozzles 86.
  • the iiuid to be spray dried ows into the cavity 88 in the spray disc through fluid supply tubes 90 which pass through the cover plate 74.
  • a centrally located circular skirt 92 depends from the underside of cover plate 74 into close proximity to the central opening in the covering ring 84.
  • the covering ring is provided with a shoulder 94 at this position and the shoulder defines passageways 96 for a purpose presently to become apparent.
  • Cushion gas of the proper temperature and liquid content is conducted by pipe 98 into an annular duct 100 surrounding the shaft 70. From here the cushion gas escapes into the space 102 enclosed by the skirt 92 past the supply tubes 90 into the cavity 88 in the spray disc 78. The labyrinth seal 72 precludes the cushion gas from rising along the shaft 70 into the lubricating elements.
  • An additional supply of cushion gas is provided by means of pipe 106 which supplies gas through cover plate 74 into the space 108 between the cover plate 74 and covering ring: 84.
  • the supply of cushion gas down through the space 102 within skirt 92 and into the spray disc prevents the formation of deposits in the vicinity of the supply tubes 90 and in the cavity 88 in general.
  • the cushion gas from pipe 106 prevents the formation of deposits within the space 108 while the small clearance between skirt 92 and collar 94 prevents liquid from escaping into the space 108. Any droplets which do tend to escape are delivered back into the cavity 884 within the spray disc 78 by centrifugal action through the passages 96. It will be appreciated that the small clearance between the skirt 92 and collar 94 is possible only because a positive pressure of cushion gas exists within the spray disc and prevents the formation of deposits which would soon iill this small space.
  • Cushioning gas may be supplied to the vicinity of the nozzles 86 by means of a passageway 110 in shaft 70 which communicates with an annular duct 112 having radial passages 114 connected thereto and terminating at the nozzles 86.
  • Liquid to be evaporated is introduced into the drying vessel 116 by means of a conduit 118 which is connected to nozzle assembly 120 having a nozzle orifice member 122.
  • the nozzle assembly 120 is surrounded by a jacket 124 which is sealed to the nozzle at 126 by any suitable packing means.
  • the lower end of the jacket 124 adjacent the nozzle oriiice member 122 is open, as shown at 128, and cushion gas is supplied to the jacket through a conduit 130 in the upper end thereof.
  • the nozzle orifice member 122 and the opening 128 in the jacket are so arranged that the jacket does not interfere with the dispersion process but prevents the liquid which gathers around the nozzle orifice from drying out.
  • the cushion gas has been described as consisting of a mixture of a gas, such as air, and a liquid which is the same as the liquid carrying the substance to be extracted, it is also possible to increase the percentage of the liquid phase of this mixture to the extent that it comprises the entire cushion gas. That is to say, during a spray drying process wheren water is the liquid to be evaporated, the cushion gas may consist of pure steam. In such va situation a very small quantity of cushion gas is effective to achieve the desired purpose, although it is necessary to take care lest the temperature of the spray disc be raised an undesirable amount.
  • a gas such as air
  • a method of spray drying a substance carried by a liquid comprising the steps of spraying said liquid into a drying atmosphere which tends to cause deposits of said substance to form on certain surfaces of said spraying apparatus, and preventing the formation of such deposits by projecting onto the deposit prone surfaces a gas containing vapor chemically similar to the vapor of said liquid in suicient quantity to produce at said surfaces a mixture having a partial vapor pressure of said chemically similar vapor substantially no less than the saturated vapor pressure of said liquid at lthe temperature of said mixture.
  • a method of spray drying a substance carried by a liquid comprising the steps of spraying said liquid into a drying atmosphere which tends to cause deposits of said substance to form on certain surfaces of the spraying apparatus, and preventing the formation of such deposits by projecting onto the deposit prone surfaces a gas containing a vapor of said liquid, the partial pressure of the vapor of said liquid being at least equal to the saturation vapor pressure of the liquid carrying said substance.
  • a method of spray drying a substance carried by a liquid comprising the steps of spraying said liquid into a drying atmosphere which tends to cause deposits of said substance to form on certain surfaces of the spraying apparatus, and preventing the formation of such deposits by projecting onto the deposit prone sirfaces a gas containing a vapor of the same liquid as the liquid carrying said substance, the partial pressure of said vapor being at least equal to the saturation vapor pressure of the liquid carrying said substance.
  • a method of spray drying a substance carried by a liquid comprising the steps of spraying said liquid in a spray drying apparatus in a drying atmosphere which tends to cause deposits of said substance to form on certain surfaces of the spray drying apparatus, and preventing the formation of such deposits by projecting onto the deposit prone surfaces a gas containing a vapor of said liquid to form at said surfaces a mixture, the partial pressure of said vapor being at least substantially equal to the saturated vapor pressure of the liquid carrying said substance at the temperature of said mixture.
  • a spray drying apparatus for drying a substance carried by a liquid comprising a spraying means, a container enclosing said spraying means, means for delivering to said container a drying gas Which tends to cause the formation of deposits of the substances to be dried on surfaces of said spraying means, means for providing a gas containing vapor chemically similar to the vapor of said liquid and means for delivering said gas containing vapor to said surfaces, said means for providing a gas containing vapor providing said gas and vapor in such proportions that a mixture is produced at said surfaces having a partial vapor pressure of said chemically similar vapor substantially no less than the saturated vapor pressure of said liquid at the temperature of said mixture.
  • said spraying means has fixed and rotatable portions adjacent one another, said rotatable portion comprising a dishshaped disc having a turned up rim with nozzles therein, a ring plate covering said disc, a cover plate on said fixed portion parallel to said ring plate, means for delivering said liquid past said cover plate and ring plate into said disc near the axis thereof, and conduit means in said cover plate for delivering said gas containing vapor into the space between said cover plate and said ring plate.
  • said fixed portion includes therein a mixing chamber for mixing said gas and Vapor, and further conduit means connecting said mixing chamber to said conduit means.
  • said spraying means includes fixed and rotatable portions adjacent one another, said rotatable portion comprising a dish-shaped disc having a turned up rim with nozzles therein, a ring plate covering said disc, a cover plate on said fixed portion parallel to said ring plate, means for delivering said liquid extending through said cover plate past said ring plate into said disc near the axis thereof and conduit means in said cover plate for delivering said gas containing vapor into the space between said cover plate and said ring plate, said fixed portion including a lower peripheral edge which extends down towards and into close proximity with said disc below said cover plate to thereby form a small slit which maintains said gas in said space and prevents surrounding gas from entering.
  • An apparatus as set out in claim 9 including radial vanes affixed to the underside of said cover plate.
  • a spray drying apparatus for drying a substance carried by a liquid comprising a spraying apparatus having fixed and rotatable portions adjacent one another, said rotatable portion having a cavity therein communicating with nozzles, first conduit means in said xed portion for delivering said liquid to said cavity in said rotatable portion, a mixing chamber in said fixed portion, second conduit means in said fixed portion connected to said mixing chamber for delivering a gas thereto, third conduit means in said fixed portion for delivering a liquid to said mixing chamber, and fourth conduit means in said xed portion for delivering a mixture of said gas and'second named liquid to surfaces of said rotatable portlon.
US551623A 1954-12-11 1955-12-07 Spray drying apparatus Expired - Lifetime US2889873A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH819643X 1954-12-11

Publications (1)

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US2889873A true US2889873A (en) 1959-06-09

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Application Number Title Priority Date Filing Date
US551623A Expired - Lifetime US2889873A (en) 1954-12-11 1955-12-07 Spray drying apparatus

Country Status (5)

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US (1) US2889873A (xx)
CH (1) CH336753A (xx)
DE (1) DE1110087B (xx)
GB (1) GB819643A (xx)
NL (1) NL108207C (xx)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475168B1 (de) * 1965-03-26 1972-12-21 Niro Atomizer As Zerstaeuberrad zum Zerstaeuben von Aufschlaemmungen stark verschleissend wirkender Materialien
FR2197519A1 (xx) * 1972-08-29 1974-03-29 Niro Atomizer As
USRE29083E (en) * 1965-03-26 1976-12-21 Aktieselskabet Niro Atomizer Atomizer wheel for the atomization of suspensions of hard-wearing materials
US4082221A (en) * 1974-08-28 1978-04-04 Stork Amsterdam B.V. Rotatable atomizer for spraying a liquid
US4141783A (en) * 1972-08-29 1979-02-27 Aktieselskabet Niro Atomizer Spray drying atomizer wheel
EP0035344A2 (en) * 1980-02-29 1981-09-09 A/S Niro Atomizer Method for atomizing liquid material
US5167763A (en) * 1990-03-08 1992-12-01 Sakamoto Engineering Co., Ltd. Rotatably-mounted spray dryer
US20060219816A1 (en) * 2005-04-05 2006-10-05 Durr Systems Rotary atomizer component
EP1764157A3 (de) * 2005-09-15 2007-06-13 Dürr Systems GmbH Rotationszerstäuberbauteil
CN110076030A (zh) * 2019-03-13 2019-08-02 福建工程学院 一种发动机轴瓦喷涂质量快速检测及补喷装置和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7411475A (nl) * 1974-08-28 1976-03-02 Stork Amsterdam Roteerbare verstuiver voor het verstuiven van een vloeistof.
US4337895A (en) * 1980-03-17 1982-07-06 Thomas Gallen High speed rotary atomizers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634640A (en) * 1927-07-05 Spbay pbocessing appabatxts
US2367770A (en) * 1938-12-08 1945-01-23 Drying & Concentrating Company Apparatus for removing moisture from liquid products
US2584973A (en) * 1947-04-10 1952-02-12 Luwa S A Cooling and sealing means for disk atomizer shafts

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR882189A (fr) * 1941-05-20 1943-05-20 Deutsche Waffen & Munitionsfab Ajutage de pulvérisation
BE488281A (xx) * 1946-04-09
DE847578C (de) * 1947-04-10 1952-08-25 Carl Andermatt Einrichtung an Lagern von schnellaufenden Zerstaeuberscheibenwellen, insbesondere fuer Trockner
DE825379C (de) * 1948-11-26 1951-12-17 Emil Kirschbaum Dr Ing Zerstaeubungsduese
DE857924C (de) * 1949-06-03 1952-12-04 Emil Dr-Ing Kirschbaum Zerstaeubungsduese

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634640A (en) * 1927-07-05 Spbay pbocessing appabatxts
US2367770A (en) * 1938-12-08 1945-01-23 Drying & Concentrating Company Apparatus for removing moisture from liquid products
US2584973A (en) * 1947-04-10 1952-02-12 Luwa S A Cooling and sealing means for disk atomizer shafts

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1475168B1 (de) * 1965-03-26 1972-12-21 Niro Atomizer As Zerstaeuberrad zum Zerstaeuben von Aufschlaemmungen stark verschleissend wirkender Materialien
USRE29083E (en) * 1965-03-26 1976-12-21 Aktieselskabet Niro Atomizer Atomizer wheel for the atomization of suspensions of hard-wearing materials
USRE32064E (en) * 1965-03-26 1986-01-14 Aktieselskabet Niro Atomizer Atomizer wheel for the atomization of suspensions of hard-wearing materials
FR2197519A1 (xx) * 1972-08-29 1974-03-29 Niro Atomizer As
US4141783A (en) * 1972-08-29 1979-02-27 Aktieselskabet Niro Atomizer Spray drying atomizer wheel
US4082221A (en) * 1974-08-28 1978-04-04 Stork Amsterdam B.V. Rotatable atomizer for spraying a liquid
EP0035344A3 (en) * 1980-02-29 1982-04-07 A/S Niro Atomizer Method for atomizing liquid material
EP0035344A2 (en) * 1980-02-29 1981-09-09 A/S Niro Atomizer Method for atomizing liquid material
US5167763A (en) * 1990-03-08 1992-12-01 Sakamoto Engineering Co., Ltd. Rotatably-mounted spray dryer
US20060219816A1 (en) * 2005-04-05 2006-10-05 Durr Systems Rotary atomizer component
US20100143599A1 (en) * 2005-04-05 2010-06-10 Frank Herre Rotary atomizer component
US8430340B2 (en) 2005-04-05 2013-04-30 Dürr Systems Inc. Rotary atomizer component
EP1764157A3 (de) * 2005-09-15 2007-06-13 Dürr Systems GmbH Rotationszerstäuberbauteil
CN110076030A (zh) * 2019-03-13 2019-08-02 福建工程学院 一种发动机轴瓦喷涂质量快速检测及补喷装置和方法
CN110076030B (zh) * 2019-03-13 2023-11-07 福建工程学院 一种发动机轴瓦喷涂质量快速检测及补喷装置和方法

Also Published As

Publication number Publication date
NL108207C (xx) 1900-01-01
DE1110087B (de) 1961-06-29
GB819643A (en) 1959-09-09
CH336753A (de) 1959-02-28

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