GB668601A - Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances - Google Patents

Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances

Info

Publication number
GB668601A
GB668601A GB1638850A GB1638850A GB668601A GB 668601 A GB668601 A GB 668601A GB 1638850 A GB1638850 A GB 1638850A GB 1638850 A GB1638850 A GB 1638850A GB 668601 A GB668601 A GB 668601A
Authority
GB
United Kingdom
Prior art keywords
crystals
fan
neutralizing
sulphate
air
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
GB1638850A
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.)
WILTON S PATENT FURNACE COMPAN
Original Assignee
WILTON S PATENT FURNACE COMPAN
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 WILTON S PATENT FURNACE COMPAN filed Critical WILTON S PATENT FURNACE COMPAN
Priority to GB1638850A priority Critical patent/GB668601A/en
Publication of GB668601A publication Critical patent/GB668601A/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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C01C1/249—Deacidifying or drying the crystals
    • 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
    • F26B17/1441—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 stationary, e.g. fixed panels, baffles, grids, the position of which may be adjustable
    • F26B17/145—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 stationary, e.g. fixed panels, baffles, grids, the position of which may be adjustable consisting of non-perforated panels or baffles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

<PICT:0668601/III/1> In neutralizing and drying crystalline or granular substances, e.g. ammonium sulphate or sodium sulphate, the substance is freed from most of its moisture, say 1-3 per cent content, in a centrifuge 1 and is sprayed in the centrifuge with a predetermined quantity, e.g. two gallons per four cwt., of water from tank 2 through rose 4 to wash away most of the free acid without dissolving the substance itself. The crystals are discharged through a hopper into a vertical cylinder 6 and are subjected to the action of a solid or gaseous neutralizing agent, e.g. ammonia entering at 7 or ammonium carbonate or sodium carbonate added through the hopper. The crystals are fed by turntable feeder 8 driven by motor 9 to the bottom of an air elevator 12 and are lifted by gases withdrawn from cylinder 6 by fan 14 heated at 15. The crystals pass from expansion chamber 16, while gases are withdrawn through metal screen 17, down cataract tower 18 having baffles 19 against a stream of hot air from fan 20 and heater 21. The dried salt is stored in container 22 before being weighed and bagged at 23. The air for the elevator and cataract tower may be supplied by the same fan.
GB1638850A 1950-06-30 1950-06-30 Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances Expired GB668601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1638850A GB668601A (en) 1950-06-30 1950-06-30 Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1638850A GB668601A (en) 1950-06-30 1950-06-30 Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances

Publications (1)

Publication Number Publication Date
GB668601A true GB668601A (en) 1952-03-19

Family

ID=10076417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1638850A Expired GB668601A (en) 1950-06-30 1950-06-30 Improvements in or relating to a process and apparatus for neutralizing and drying sulphate of ammonia or other granular or crystalline substances

Country Status (1)

Country Link
GB (1) GB668601A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168372A1 (en) * 1984-06-08 1986-01-15 Monsanto Company Pelletizing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168372A1 (en) * 1984-06-08 1986-01-15 Monsanto Company Pelletizing apparatus

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