US3895994A - Spray dryer - Google Patents

Spray dryer Download PDF

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Publication number
US3895994A
US3895994A US442872A US44287274A US3895994A US 3895994 A US3895994 A US 3895994A US 442872 A US442872 A US 442872A US 44287274 A US44287274 A US 44287274A US 3895994 A US3895994 A US 3895994A
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supply tube
cylinder
air supply
air
hot air
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Expired - Lifetime
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US442872A
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Kenji Saguchi
Takashi Hiraiwa
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Priority to US442872A priority Critical patent/US3895994A/en
Priority to DE19742407616 priority patent/DE2407616A1/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/40—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by drying or kilning; Subsequent reconstitution
    • A23L3/46—Spray-drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
    • 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
    • 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
    • F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
    • F26B17/107—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions

Definitions

  • ABSTRACT This invention relates to a method of minimizing the deposit of products on the cylinder wall and their back eddying into the high temperature zone through intro- 48 L ducing tangential air currents from the inlets arranged around the discharge end of the cylinder of spray 159/4 CC, 4 F 4 K. 4 GC, 4 S, 48 R [56] References Cit d dryer so as to swirl within said cylinder.
  • This invention UNITED STATES PATENTS also comprises an improved spray dryer for carrying out the above mentioned method.
  • 1 is drying cylinder.
  • 4 is tube for supplying the solution or suspension of the material to be dried such as fruit juice.
  • 5 is tube for blowing hot primary air with great speed. Said tube surrounds the tube 4 so as to pulverrize the feed from the tube 4. While flowing through the cylinder 1, particles are dried through intimately mixing with hot air. The completely dried products and remaining air are finally led to the cyclone 2 where they are separated from each other.
  • Said countercurrents flow spirally along the cylinder wall toward the spray zone while completely envelope the main flow F consisting of the particles and primary air whereby the deposit of particles on the cylinder wall may be effectively avoided.
  • the rate of evaporation per volume of the cylinder according to this invention is about SSKg/m which is more than ten times larger than the hitherto known rates.
  • drying cylinder may be vertical, horizontal or even tilted.
  • a spray dryer comprising: a hollow cylinder forming a drying chamber having a first inlet end and a second outlet end, a liquid supply tube having a discharge end disposed axially within said inlet end of said chamher, a first primary hot air supply tube concentrically disposed with respect to said liquid supply tube, and terminating in a common transversely plane therewith, a second hot air supply tube connected with said inlet end of said cylinder to provide a cylindrical column of air completely surrounding said first hot air supply tube in the area of said common plane, a third air supply tube having means for communicating with the interior of said outlet end of said chamber and introducing at least one spiral air current moving tangentially with respect to the inner surface of said cylinder and in a longitudinal direction toward said inlet end; whereby said spiral air current forms a moving curtain preventing hot dry particles outwardly penetrating said cylindrical column of air from adhering to the inner surface of said cylinder, said spiral air current mixing with said cylindrical column of hot air along the axis of said cylinder to lower the

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Nutrition Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

This invention relates to a method of minimizing the deposit of products on the cylinder wall and their back eddying into the high temperature zone through introducing tangential air currents from the inlets arranged around the discharge end of the cylinder of spray dryer so as to swirl within said cylinder. This invention also comprises an improved spray dryer for carrying out the above mentioned method.

Description

[ 1 July 22,1975
United States Patent [191 Saguchi et al.
a e w n g m a a aw w n m aK a a v ew Sw i m n Anmkkm .IS30O h TYb c zl l m mm u u u nfi e e nhr af E c e arl MK P P m Yo m Hv Sh MN 57 [22] Filed: 1974 Primary Examiner-Jack Sofer [21] App]. N0.: 442,872
[57] ABSTRACT This invention relates to a method of minimizing the deposit of products on the cylinder wall and their back eddying into the high temperature zone through intro- 48 L ducing tangential air currents from the inlets arranged around the discharge end of the cylinder of spray 159/4 CC, 4 F 4 K. 4 GC, 4 S, 48 R [56] References Cit d dryer so as to swirl within said cylinder. This invention UNITED STATES PATENTS also comprises an improved spray dryer for carrying out the above mentioned method.
3 Claims, 1 Drawing Figure l/l9l7 Krauseunmnnum.
PRIMARY HOT MR SOT-GOD'S SECONDARY HOT AIR I50C comm 20-0 (1 PATENTED JUL 2 2 I975 4 sownou PRIMARY nor AIR sow-some A SECONDARY HOT AIR 150's 8 E CODLAIR 20% C ,2 CYCLONE SPRAY DRYER Spray dryer comprising a drying cylinder provided at one end with a spray nozzle and hot primary air injecting tube surrounding said nozzle has been known.
ln such a spray dryer, the products tend to deposit on the cylinder wall and recycle into the high temperature zone. In order to do away with such defects, various methods have been devised, but they all failed. One of the most commonly employed methods is the introduction of the hot secondary air concurrently to the main flow, but it is not so successful as expected.
While the inventors of this invention were investigating this problem, they had accidentarilly discovered the solution. According to this, the above mentioned defects may be effectively overcome by introducing tangential air currents from the inlets arranged arround the discharge end of the cylinder. Within the cylinder, said air currents spirally flow along the cylinder wall and envelope completely the main flow consisting of the particles and hot primary air whereby the deposit of the products on the cylinder wall may be completely avoided. As said air currents fill the vacant space adjacent the spray zone the back eddying of the particle may also be effectively avoided.
Finally, said spiral air currents turn their courses and flow back to the discharge end of the cylinder together with the main flow.
The above mentioned function of the spiral air currents were observed through peep holes provided in the cylinder wall with the introduction of paper strips.
lt is to be noted that not whole of the said countercurrents follow the above mentioned courses, but small portion of said countercurrents flows back to the discharge end of the cylinder together with the main flow before reaching the spray zone.
The substance of this invention will become apparent as this description proceeds in conjunction with the accompanying drawing which shows a cross sectional view of the spray dryer according to this invention.
1 is drying cylinder. 4 is tube for supplying the solution or suspension of the material to be dried such as fruit juice. 5 is tube for blowing hot primary air with great speed. Said tube surrounds the tube 4 so as to pulverrize the feed from the tube 4. While flowing through the cylinder 1, particles are dried through intimately mixing with hot air. The completely dried products and remaining air are finally led to the cyclone 2 where they are separated from each other.
In such a spray dryer, some of the particles tends to deposit on the cylinder wall and is overheated there whereby scorching of the particles will result. Further, some of the particles tends to back eddy into the high temperature zone whereby clogging of the spray nozzle often results. In order to overcome said defects, it has been devised to introduce a large amount of hot secondary air to the spraying zone through tube 6, but this method is not so effective as expected.
However, by adopting the method according to this invention, tangential air currents are introduced from the bustle duct 3 into the drying cylinder 1 through inlets 7,7',7 arranged around the discharge end of said cylinder.
Said countercurrents flow spirally along the cylinder wall toward the spray zone while completely envelope the main flow F consisting of the particles and primary air whereby the deposit of particles on the cylinder wall may be effectively avoided.
After said spiral air currents fill the vacant space near the spray zone, they flow back to the discharge end of the cylinder together with the main flow F. In virtue of this action, the back eddying of the products into the high temperature zone may also be avoided.
It is to be noted not whole of the spiral air currents follow the above mentioned courses, but small portion thereof flows back to the discharge end of the cylinder together with the main flow F as shown by arrows a before reaching the spray zone.
Now, in order to understand the merits of this invention, data obtained by experiments are given below.
The diameter of the dryin c linder g y 3500mm The length of the dryin cylinder The pressure at the disc arge end of the cylinder The number of inlets for introducing -3mm water column As is obvious from the above, the rate of evaporation per volume of the cylinder according to this invention is about SSKg/m which is more than ten times larger than the hitherto known rates.
This invention is also applicable to vacuum spray evaporator, flash dryer, spray cooling granulator or the like. Further, drying cylinder may be vertical, horizontal or even tilted.
What we claim is:
1. A spray dryer comprising: a hollow cylinder forming a drying chamber having a first inlet end and a second outlet end, a liquid supply tube having a discharge end disposed axially within said inlet end of said chamher, a first primary hot air supply tube concentrically disposed with respect to said liquid supply tube, and terminating in a common transversely plane therewith, a second hot air supply tube connected with said inlet end of said cylinder to provide a cylindrical column of air completely surrounding said first hot air supply tube in the area of said common plane, a third air supply tube having means for communicating with the interior of said outlet end of said chamber and introducing at least one spiral air current moving tangentially with respect to the inner surface of said cylinder and in a longitudinal direction toward said inlet end; whereby said spiral air current forms a moving curtain preventing hot dry particles outwardly penetrating said cylindrical column of air from adhering to the inner surface of said cylinder, said spiral air current mixing with said cylindrical column of hot air along the axis of said cylinder to lower the effective temperature thereof at the outlet end of said cylinder.
2. Structure in accordance with claim 1, in which the volume flow ratio existing between said first hot air supply tube, said second hot air supply tube, and said third air supply tube is in the order of l:l:0.l.
3. Structure in accordance with claim 2, in which said first air supply tube supplies air at approximately 500-600C. and said third air supply tube supplies air

Claims (3)

1. A SPRAY DRYER COMPRISING: A HOLLOW CYLINDER FORMING A DRYER CHAMBER HAVING A FIRST INLET END AND A SECOND OUTLET END, A LIQUID SUPPLY TUBE HAVING A DISCHARGE END DISPOSED AXIALLY WITHIN SAID INLET END OF SAID CHAMBER, A FIRST PRIMARY HOT AIR SUPPLY CONCENTRICALLY DISPOSED WITH RESPECT TO SAID LIQUID SUPPLY TUBE, AND TERMINATING IN A COMMON TRANSVERSELY PLANE THEREWITH, A SECOND HOT AIR SUPPLY TUBE CONNECTED WITH SAID INLET END OF SAID CYLINDER TO PROVIDE A CYLINDRICAL COLUMN OF AIR COMPLETELY SURROUNDING SAID FIRST HOT AIR SUPPLY TUBE IN THE AREA OF SAID COMMON PLANE, A THIRD AIR SUPPLY TUBE HAVING MEANS FOR COMMUNICATING WITH THE INTERIOR OF SAID OUTLET END OF SAID CHAMBER AND INTRODUCING AT LEAST ONE SPIRAL AIR CURRENT MOVING TANGENTIALLY WITH RESPECT TO THE INNER SURFACE OF SAID CYLINDER AND IN A LONGITUDINAL DIRECTION TOWARD SAID INLET END, WHEREBY SAID SPIRAL AIR CURRENT FORMS A MOVING CURTAIN PREVENTING HOT DRY PARTICLES OUTWARDLY PENETRATING SAID CYLINDRICAL COLUMN OF AIR FROM ADHERING TO THE INNER SURFACE OF SAID CYLINDER, SAID SPIRAL AIR CURRENT MIXING WITH SAID CYLINDRICAL COLUMN OF HOT AIR ALONG THE AXIS OF SAID CYLINDER TO LOWER THE EFFECTIVE TEMPERATURE THEREOF AT THE OUTLET END OF SAID CYLINDER.
2. Structure in accordance with claim 1, in which the volume flow ratio existing between said first hot air supply tube, said second hot air supply tube, and said third air supply tube is in the order of 1:1:0.1.
3. Structure in accordance with claim 2, in which said first air supply tube supplies air at appRoximately 500*-600*C. and said third air supply tube supplies air at approximately 20*C.
US442872A 1974-02-15 1974-02-15 Spray dryer Expired - Lifetime US3895994A (en)

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364857A1 (en) * 1976-09-17 1978-04-14 Union Carbide Corp Solid vanadate recovery from aq. soln. - by spray drying into hot gas and rapid chilling, giving high yield without liquid effluent
FR2396250A1 (en) * 1977-07-01 1979-01-26 Rhone Poulenc Ind NEW PROCESS FOR THE TREATMENT OF THERMOSENSITIVE MATERIALS
US4246242A (en) * 1978-11-20 1981-01-20 Corning Glass Works Method of removing gaseous pollutants from flue gas
US4519990A (en) * 1983-05-24 1985-05-28 Rockwell International Corporation Spray dryer for the purification of a gas
US4600472A (en) * 1979-12-14 1986-07-15 General Foods Corporation Apparatus for cooking or gelatinizing materials
US5139612A (en) * 1988-09-02 1992-08-18 Damrow Company, Inc. Spray drying apparatus
US5149398A (en) * 1989-05-18 1992-09-22 Olin Corporation Apparatus for producing a fast dissolving granular product
US5558687A (en) * 1994-12-30 1996-09-24 Corning Incorporated Vertical, packed-bed, film evaporator for halide-free, silicon-containing compounds
US5596817A (en) * 1992-05-21 1997-01-28 Niro Holding A/S Method and an apparatus for minimizing deposits in a drying chamber
US5615492A (en) * 1993-06-26 1997-04-01 Henkel Kommanditgesellschaft Auf Aktien Drying of water-containing useful materials or mixtures thereof with superheated steam
WO1999027316A1 (en) * 1997-11-22 1999-06-03 Twister Milieu B.V. Device and method for separating liquid and solid constituents of a flow of material
EP1138361A2 (en) * 2000-03-28 2001-10-04 Gkss-Forschungszentrum Geesthacht Gmbh Device for treating suspensions
US20060277887A1 (en) * 2005-05-31 2006-12-14 Nutragon, Llc Method for processing organic plant matter into dry powder, oil and juice products
US20070045099A1 (en) * 2005-09-01 2007-03-01 Watervap, Llc Method and system for seaparating solids from liquids
US20070045100A1 (en) * 2005-09-01 2007-03-01 Watervap, Llc Method and system for separating solids from liquids
US20090020481A1 (en) * 2007-07-20 2009-01-22 Bailie Robert E Method and system for treating feedwater
US20090283396A1 (en) * 2007-07-20 2009-11-19 Bailie Robert E Method and system for treating feedwater
EP2295125A1 (en) * 2008-06-12 2011-03-16 Honke Matsuura Brewery, Co., Ltd. Solution condensing apparatus
CN103505372A (en) * 2013-10-21 2014-01-15 金陵科技学院 Micro-capsule preparation production equipment high in yield and wide in application range
JP2014166628A (en) * 2013-02-01 2014-09-11 Ricoh Co Ltd Method for producing grain, grain production device, and grain
US10463621B2 (en) 2014-03-31 2019-11-05 Hovione Holding Limited Spray drying process for production of powders with enhanced properties
CN111085000A (en) * 2019-11-28 2020-05-01 商文辉 Method and device for drying vitamin C phosphate
WO2020249824A1 (en) * 2019-06-14 2020-12-17 Scandsib Holdings Ltd Cyclonic evaporator apparatus and associated method
IT201900010653A1 (en) * 2019-07-02 2021-01-02 Tecoma Drying Tech S R L HORIZONTAL AXIS SPRAY DRYER
US10974161B2 (en) 2017-09-20 2021-04-13 Purestream Services, Llc Fluid treatment systems

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473360A1 (en) * 1980-01-09 1981-07-17 Commissariat Energie Atomique DEVICE FOR ATOMIZING A REACTIONAL MIXTURE
DE102007026726A1 (en) * 2007-06-06 2008-12-11 Lübbers Anlagen und Umwelttechnik GmbH Device for process gas distribution in drying tower, particularly in spray drying plants used for milk, food and pharmaceutical industry, comprises supply pipe with spraying unit for material, which is dried in drying tower
DE102017207870A1 (en) 2017-05-10 2018-11-15 Robert Bosch Gmbh Process and apparatus for producing monodisperse microparticles

Citations (9)

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US1141879A (en) * 1910-04-04 1915-06-01 Merrell Soule Co Desiccating process.
US1213887A (en) * 1916-11-29 1917-01-30 Georg A Krause Method of vaporizing or concentrating liquids, solutions, emulsions, suspensions, and like substances.
US1785533A (en) * 1928-06-28 1930-12-16 Colgate Palmolive Peet Co Soap manufacture
US1964858A (en) * 1931-01-12 1934-07-03 David D Peebles Method and apparatus for treatment of nongaseous materials
US2100907A (en) * 1936-01-20 1937-11-30 Wallace L Mcgehee Apparatus for manufacturing dried feed
US2184314A (en) * 1933-04-12 1939-12-26 Golden State Company Ltd Desiccating method
US2310650A (en) * 1940-08-02 1943-02-09 Golden State Company Ltd Drying apparatus and method
US2413420A (en) * 1940-02-26 1946-12-31 Thermo Plastics Corp Method and apparatus for dispersing or drying fluent material in high velocity elastic fluid jets
US2415527A (en) * 1942-07-03 1947-02-11 Golden State Company Ltd Method of atomizing and desiccating substances and apparatus therefor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1141879A (en) * 1910-04-04 1915-06-01 Merrell Soule Co Desiccating process.
US1213887A (en) * 1916-11-29 1917-01-30 Georg A Krause Method of vaporizing or concentrating liquids, solutions, emulsions, suspensions, and like substances.
US1785533A (en) * 1928-06-28 1930-12-16 Colgate Palmolive Peet Co Soap manufacture
US1964858A (en) * 1931-01-12 1934-07-03 David D Peebles Method and apparatus for treatment of nongaseous materials
US2184314A (en) * 1933-04-12 1939-12-26 Golden State Company Ltd Desiccating method
US2100907A (en) * 1936-01-20 1937-11-30 Wallace L Mcgehee Apparatus for manufacturing dried feed
US2413420A (en) * 1940-02-26 1946-12-31 Thermo Plastics Corp Method and apparatus for dispersing or drying fluent material in high velocity elastic fluid jets
US2310650A (en) * 1940-08-02 1943-02-09 Golden State Company Ltd Drying apparatus and method
US2415527A (en) * 1942-07-03 1947-02-11 Golden State Company Ltd Method of atomizing and desiccating substances and apparatus therefor

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364857A1 (en) * 1976-09-17 1978-04-14 Union Carbide Corp Solid vanadate recovery from aq. soln. - by spray drying into hot gas and rapid chilling, giving high yield without liquid effluent
FR2396250A1 (en) * 1977-07-01 1979-01-26 Rhone Poulenc Ind NEW PROCESS FOR THE TREATMENT OF THERMOSENSITIVE MATERIALS
US4246242A (en) * 1978-11-20 1981-01-20 Corning Glass Works Method of removing gaseous pollutants from flue gas
US4600472A (en) * 1979-12-14 1986-07-15 General Foods Corporation Apparatus for cooking or gelatinizing materials
US4519990A (en) * 1983-05-24 1985-05-28 Rockwell International Corporation Spray dryer for the purification of a gas
US5139612A (en) * 1988-09-02 1992-08-18 Damrow Company, Inc. Spray drying apparatus
US5149398A (en) * 1989-05-18 1992-09-22 Olin Corporation Apparatus for producing a fast dissolving granular product
US5596817A (en) * 1992-05-21 1997-01-28 Niro Holding A/S Method and an apparatus for minimizing deposits in a drying chamber
US5615492A (en) * 1993-06-26 1997-04-01 Henkel Kommanditgesellschaft Auf Aktien Drying of water-containing useful materials or mixtures thereof with superheated steam
US5558687A (en) * 1994-12-30 1996-09-24 Corning Incorporated Vertical, packed-bed, film evaporator for halide-free, silicon-containing compounds
US5707415A (en) * 1994-12-30 1998-01-13 Corning Incorporated Method of vaporizing reactants in a packed-bed, column, film evaporator
WO1999027316A1 (en) * 1997-11-22 1999-06-03 Twister Milieu B.V. Device and method for separating liquid and solid constituents of a flow of material
EP1138361A2 (en) * 2000-03-28 2001-10-04 Gkss-Forschungszentrum Geesthacht Gmbh Device for treating suspensions
DE10015130A1 (en) * 2000-03-28 2001-11-15 Geesthacht Gkss Forschung Device for treating suspensions
EP1138361A3 (en) * 2000-03-28 2003-06-18 Gkss-Forschungszentrum Geesthacht Gmbh Device for treating suspensions
DE10015130B4 (en) * 2000-03-28 2005-01-27 Gkss-Forschungszentrum Geesthacht Gmbh Device for the treatment of suspensions
US20060277887A1 (en) * 2005-05-31 2006-12-14 Nutragon, Llc Method for processing organic plant matter into dry powder, oil and juice products
US20070045100A1 (en) * 2005-09-01 2007-03-01 Watervap, Llc Method and system for separating solids from liquids
US7357849B2 (en) 2005-09-01 2008-04-15 Watervap, Llc Method and system for separating solids from liquids
US20070045099A1 (en) * 2005-09-01 2007-03-01 Watervap, Llc Method and system for seaparating solids from liquids
US20090020481A1 (en) * 2007-07-20 2009-01-22 Bailie Robert E Method and system for treating feedwater
US20090283396A1 (en) * 2007-07-20 2009-11-19 Bailie Robert E Method and system for treating feedwater
US8075740B2 (en) 2007-07-20 2011-12-13 Aht Solutions, Llc Method and system for treating feedwater
US8968451B2 (en) 2008-06-12 2015-03-03 Nanomist Technnologies Co., Ltd. Apparatus for concentrating a solution
EP2295125A1 (en) * 2008-06-12 2011-03-16 Honke Matsuura Brewery, Co., Ltd. Solution condensing apparatus
US20110186490A1 (en) * 2008-06-12 2011-08-04 Kazuo Matsuura Apparatus for concentrating a solution
EP2295125A4 (en) * 2008-06-12 2013-03-20 Honke Matsura Brewery Co Ltd Solution condensing apparatus
JP2014166628A (en) * 2013-02-01 2014-09-11 Ricoh Co Ltd Method for producing grain, grain production device, and grain
CN103505372A (en) * 2013-10-21 2014-01-15 金陵科技学院 Micro-capsule preparation production equipment high in yield and wide in application range
US10463621B2 (en) 2014-03-31 2019-11-05 Hovione Holding Limited Spray drying process for production of powders with enhanced properties
US10918603B2 (en) 2014-03-31 2021-02-16 Hovione Holding Limited Spray drying process for production of powders with enhanced properties
US10974161B2 (en) 2017-09-20 2021-04-13 Purestream Services, Llc Fluid treatment systems
US11338218B2 (en) 2017-09-20 2022-05-24 Purestream Services, Llc Fluid treatment apparatus and methods
WO2020249824A1 (en) * 2019-06-14 2020-12-17 Scandsib Holdings Ltd Cyclonic evaporator apparatus and associated method
IT201900010653A1 (en) * 2019-07-02 2021-01-02 Tecoma Drying Tech S R L HORIZONTAL AXIS SPRAY DRYER
CN111085000A (en) * 2019-11-28 2020-05-01 商文辉 Method and device for drying vitamin C phosphate

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