GB1331052A - Heating of discrete material - Google Patents

Heating of discrete material

Info

Publication number
GB1331052A
GB1331052A GB1331052DA GB1331052A GB 1331052 A GB1331052 A GB 1331052A GB 1331052D A GB1331052D A GB 1331052DA GB 1331052 A GB1331052 A GB 1331052A
Authority
GB
United Kingdom
Prior art keywords
bed
heating
conduit
ancillary
burner
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
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.)
CHRISTMAS ISLAND PHOSPHATE CO
Original Assignee
CHRISTMAS ISLAND PHOSPHATE CO
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 CHRISTMAS ISLAND PHOSPHATE CO filed Critical CHRISTMAS ISLAND PHOSPHATE CO
Publication of GB1331052A publication Critical patent/GB1331052A/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
    • B01J8/1836—Heating and cooling the reactor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid
    • F28C3/16—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid the particulate material forming a bed, e.g. fluidised, on vibratory sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

1331052 Heating and drying granular materials CHRISTMAS ISLAND PHOSPHATE COMMISSION 7 Oct 1970 [7 Oct 1969] 49210/69 Headings F4B F4G and F4U In apparatus for heating discrete material, e.g. for drying, or calcining, a fluidized bed reactor having lower converging walls 11 has ancillary fluidizing gas fed to a lower plenum 18 through a conduit 19 and has a burner 14 mounted in a tube 15 depending into the lower portion of the bed so that hot combustion gas therefrom fluidizes the bed while passing upwardly through the bed to an exhaust conduit 34. An ancillary burner 20 may be mounted in the conduit 19 and the material is fed to the bed from a hopper 21 over a metering table 22 through a charging tube 23. The treated material leaves the bed through an aperture 24 in the wall 11 and a pipe 30 forms a further discharge pipe. The reactor may be used at temperatures below 700‹ C. for heating discrete crystalline millisite and crandallite forms of phosphate rock; for preparing alumina from bauxite, and the dehydration of limanite to form hematite and/or magnetite.
GB1331052D 1970-10-07 1970-10-07 Heating of discrete material Expired GB1331052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4921069 1970-10-07

Publications (1)

Publication Number Publication Date
GB1331052A true GB1331052A (en) 1973-09-19

Family

ID=10451559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1331052D Expired GB1331052A (en) 1970-10-07 1970-10-07 Heating of discrete material

Country Status (1)

Country Link
GB (1) GB1331052A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325928A (en) 1979-03-01 1982-04-20 Albright & Wilson Limited Rock treatment process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325928A (en) 1979-03-01 1982-04-20 Albright & Wilson Limited Rock treatment process

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee