GB912922A - Apparatus for continuously obtaining dry materials by evaporation - Google Patents

Apparatus for continuously obtaining dry materials by evaporation

Info

Publication number
GB912922A
GB912922A GB11431/59A GB1143159A GB912922A GB 912922 A GB912922 A GB 912922A GB 11431/59 A GB11431/59 A GB 11431/59A GB 1143159 A GB1143159 A GB 1143159A GB 912922 A GB912922 A GB 912922A
Authority
GB
United Kingdom
Prior art keywords
liquid
thickness
evaporation
wipers
evaporator
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
Application number
GB11431/59A
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.)
Bayer AG
Original Assignee
Bayer 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
Priority claimed from US726406A external-priority patent/US2974725A/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB912922A publication Critical patent/GB912922A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A23C1/01—Drying in thin layers
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
    • A23B5/00—Preservation of eggs or egg products
    • A23B5/02—Drying; Subsequent reconstitution
    • 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
    • A23C1/12—Concentration by evaporation
    • 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
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
    • A23L2/08—Concentrating or drying of juices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
    • B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B01J19/1862—Stationary reactors having moving elements inside placed in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
    • 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
    • F26B17/12—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft
    • F26B17/14—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas
    • F26B17/1433—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material
    • F26B17/1466—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement
    • F26B17/1483—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed solely by gravity, i.e. the material moving through a substantially vertical drying enclosure, e.g. shaft the materials moving through a counter-current of gas the drying enclosure, e.g. shaft, having internal members or bodies for guiding, mixing or agitating the material, e.g. imposing a zig-zag movement onto the material the members or bodies being in movement the movement being a rotation around a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
    • B01J2219/00094—Jackets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00121—Controlling the temperature by direct heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/0015—Controlling the temperature by thermal insulation means
    • B01J2219/00153—Vacuum spaces

Landscapes

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

Abstract

Solid material, e.g. caustic soda, aluminium oxide, milk powder, egg powder, is separated in a finely-divided state from admixture with liquids by means of an evaporator comprising a cylindrical vessel 1 heated by jackets 2, a rotary shaft 3 carrying a circular trough 10d for distributing the liquid composition over the upper end of the inner surface of the evaporator, and wipers 6 mounted on pivots 7 between rings 20 attached to arms 21 which extend radially at spaced intervals along the rotary shaft. As the shaft rotates, an edge of each wiper presses <PICT:0912922/III/1> against the hot inner surface, and the liquid is spread out in thin layers as it flows downwards. The thickness of the wipers, and therefore the contact-pressure against the inner surface, increases in a downward direction (cf. Figs. 2 and 5). Thus there is a series of evaporating zones, and the thickness of the liquid layer in any zone (except the uppermost) is less than the thickness of the layer in the immediately preceding zone. Alternatively, the desired change in thickness of the liquid layers can be obtained by providing wipers that extend different distances inwardly from their pivots, as shown in Fig. 6. The liquid is introduced into the evaporator through inlets 15; and the evaporated vapours leave through discharge 18. The dry solid is discharged in powder form through opening 17. Example 1 relates to the evaporation of a 50% solution of caustic soda at a temperature of 200 DEG C. and an absolute pressure of 25 mm. Hg. Example 2 relates to the evaporation of a suspension of aluminium oxide in toluene.
GB11431/59A 1954-05-04 1959-04-03 Apparatus for continuously obtaining dry materials by evaporation Expired GB912922A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2974725X 1954-05-04
US726406A US2974725A (en) 1954-05-04 1958-04-04 Process and apparatus for continuously obtaining dry materials

Publications (1)

Publication Number Publication Date
GB912922A true GB912922A (en) 1962-12-12

Family

ID=32395248

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11431/59A Expired GB912922A (en) 1954-05-04 1959-04-03 Apparatus for continuously obtaining dry materials by evaporation

Country Status (5)

Country Link
CH (1) CH374629A (en)
DE (1) DE1083753B (en)
FR (1) FR1221471A (en)
GB (1) GB912922A (en)
NL (2) NL237813A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274995B (en) * 1965-03-26 1968-08-08 Jiyuichi Nara Dryer for finely divided solids in clumps
JPS5267048A (en) * 1975-11-27 1977-06-03 Furorouitsuchi Efukin Iwan Rotor thin film evaporator
CN108211393A (en) * 2018-03-30 2018-06-29 江苏丰益化工科技有限公司 A kind of drier for surfactant
CN113108585A (en) * 2021-04-30 2021-07-13 合肥三伍机械有限公司 Automatic grain drying equipment of circulation stoving

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5813835B2 (en) * 1978-07-05 1983-03-16 株式会社日立製作所 Rotating vane evaporator
CN117959742B (en) * 2024-03-28 2024-05-31 山东佳华水处理科技有限公司 Polyether polyol filter residue separation and recovery device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274995B (en) * 1965-03-26 1968-08-08 Jiyuichi Nara Dryer for finely divided solids in clumps
JPS5267048A (en) * 1975-11-27 1977-06-03 Furorouitsuchi Efukin Iwan Rotor thin film evaporator
JPS546284B2 (en) * 1975-11-27 1979-03-27
CN108211393A (en) * 2018-03-30 2018-06-29 江苏丰益化工科技有限公司 A kind of drier for surfactant
CN113108585A (en) * 2021-04-30 2021-07-13 合肥三伍机械有限公司 Automatic grain drying equipment of circulation stoving
CN113108585B (en) * 2021-04-30 2022-07-12 合肥三伍机械有限公司 Automatic grain drying equipment of circulation stoving

Also Published As

Publication number Publication date
CH374629A (en) 1964-01-31
NL125496C (en)
FR1221471A (en) 1960-06-02
NL237813A (en)
DE1083753B (en) 1960-06-15

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