GB1325224A - Fluidised beds - Google Patents

Fluidised beds

Info

Publication number
GB1325224A
GB1325224A GB1129271*[A GB1325224DA GB1325224A GB 1325224 A GB1325224 A GB 1325224A GB 1325224D A GB1325224D A GB 1325224DA GB 1325224 A GB1325224 A GB 1325224A
Authority
GB
United Kingdom
Prior art keywords
bed
fines
pipe
particles
april
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
GB1129271*[A
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.)
Head Wrightson and Co Ltd
Original Assignee
Head Wrightson and Co Ltd
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 Head Wrightson and Co Ltd filed Critical Head Wrightson and Co Ltd
Publication of GB1325224A publication Critical patent/GB1325224A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0031—Evaporation of components of the mixture to be separated by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Glanulating (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

1325224 Evaporation of solutions to obtain dry solids HEAD WRIGHTSON & CO Ltd 19 April 1972 [26 April 1971] 11292/71 Heading B1B Solid particles are obtained from solutions or slurries by spraying the solution or slurry by means of compressed air from nozzle 22 into a bed of particles 18 which is fluidised by heated air introduced through pipe 20 and distribution tubes 21, the fine particles, separated from the effluent gas in cyclone 25, being injected into the bed through pipe 27 at a position so that the returned fines are coated with a portion of the spray in preferance to the larger particles of the bed, and the fines growth rate is encouraged and the bed particle growth rate is discouraged. As shown, the fines are injected into the bed by means of compressed air from nozzle 32; but this arrangement may be replaced by an auger. The required product is discharged from the bed 18 through pipe 28 onto conveyor 29. The evaporation of sodium sulphate solution is referred to.
GB1129271*[A 1971-04-26 1971-04-26 Fluidised beds Expired GB1325224A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1129271 1971-04-26

Publications (1)

Publication Number Publication Date
GB1325224A true GB1325224A (en) 1973-08-01

Family

ID=9983553

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1129271*[A Expired GB1325224A (en) 1971-04-26 1971-04-26 Fluidised beds

Country Status (4)

Country Link
AU (2) AU472707B2 (en)
CA (1) CA961762A (en)
DE (1) DE2220529A1 (en)
GB (1) GB1325224A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427795A (en) * 1990-08-24 1995-06-27 Bayer Aktiengesellschaft Solid formulations of agrochemicals
CN109585796A (en) * 2017-09-29 2019-04-05 横店集团东磁股份有限公司 A kind of fluidized bed and its method for coating processing

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2034679B (en) * 1978-11-14 1982-05-19 Coal Industry Patents Ltd Heating slurries
DE3932708A1 (en) * 1989-09-29 1991-04-11 Hillebrand Rudolf Gmbh Fluidised bed furnace fuelled by air-gas mixt. - has fuel supplied through nozzle tubes in furnace floor
DE19508657A1 (en) * 1995-03-14 1996-09-19 Ohlmann Anlagen Und Maschinenb Spray nozzle in a spray-dry installation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427795A (en) * 1990-08-24 1995-06-27 Bayer Aktiengesellschaft Solid formulations of agrochemicals
CN109585796A (en) * 2017-09-29 2019-04-05 横店集团东磁股份有限公司 A kind of fluidized bed and its method for coating processing

Also Published As

Publication number Publication date
AU458731B2 (en) 1975-02-19
CA961762A (en) 1975-01-28
AU3765672A (en) 1973-07-12
AU472707B2 (en) 1976-06-03
DE2220529A1 (en) 1972-11-02
AU4133872A (en) 1973-12-20

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee