GB778117A - A method of and an apparatus for separating foreign substances from a pulverous or granular material - Google Patents

A method of and an apparatus for separating foreign substances from a pulverous or granular material

Info

Publication number
GB778117A
GB778117A GB26902/55A GB2690255A GB778117A GB 778117 A GB778117 A GB 778117A GB 26902/55 A GB26902/55 A GB 26902/55A GB 2690255 A GB2690255 A GB 2690255A GB 778117 A GB778117 A GB 778117A
Authority
GB
United Kingdom
Prior art keywords
tank
outlet
partitions
air
chamber
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
GB26902/55A
Inventor
Boleslaw Joseph Zubrzycki
Ronald Wilfred James Lewis
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.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
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 FLSmidth and Co AS filed Critical FLSmidth and Co AS
Priority to GB26902/55A priority Critical patent/GB778117A/en
Publication of GB778117A publication Critical patent/GB778117A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B4/00—Separating by pneumatic tables or by pneumatic jigs
    • B03B4/06—Separating by pneumatic tables or by pneumatic jigs using fixed and inclined tables ; using stationary pneumatic tables, e.g. fluidised beds
    • B03B4/065—Separating by pneumatic tables or by pneumatic jigs using fixed and inclined tables ; using stationary pneumatic tables, e.g. fluidised beds having inclined portions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

778,117. Pneumatic separating SMIDTH & CO. AKTIESELSKAB, F. L. Sept. 20, 1955, No. 26902/55. Class 117 [Also in Group XII] In a method and apparatus for removing foreign substances and undesired lumps from a granular material, the material is supplied through an inlet 8, Fig. 1, to a tank 1 and is fluidized by compressed air flowing upwardly from inclined porous walls 5, 6. The lumps &c. pass downwardly through an outlet chamber 14 whilst the rest of the material flows downwardly on one side of a partition 16 containing an air opening 17, and then upwardly on the other side of the partition to an outlet 9. Air is fed through separate valves to separate chambers 10 at different rates and leaves the tank from an outlet 13. In Fig. 5 three partitions 16, 20 are provided so that the material moves in a sinuous path through the tank, and instead of feeding fluidizing air to separate chambers, one chamber 10 extends below and along the length of one porous wall 5 which has a varying porosity. The larger particles are withdrawn from a chamber 14 by a worm conveyer. A number of tanks may be arranged in series. Fig. 6, with the outlet of one tank serving as the inlet of an adjacent tank. Each tank has two partitions 16 between which there is no material flow although the material between the partitions is traversed by fluidizing air. In a further embodiment a tank is arranged between a rotary kiln used in the manufacture of aluminium oxide and a fluid bed cooler, and a porous bottom wall 37, Fig. 13, of the tank, has a V-shaped cross-section, and a rod 60 lies in the apex of the V and is vibrated by a device 61 to agitate the material lying near it.
GB26902/55A 1955-09-20 1955-09-20 A method of and an apparatus for separating foreign substances from a pulverous or granular material Expired GB778117A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26902/55A GB778117A (en) 1955-09-20 1955-09-20 A method of and an apparatus for separating foreign substances from a pulverous or granular material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26902/55A GB778117A (en) 1955-09-20 1955-09-20 A method of and an apparatus for separating foreign substances from a pulverous or granular material

Publications (1)

Publication Number Publication Date
GB778117A true GB778117A (en) 1957-07-03

Family

ID=10251007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26902/55A Expired GB778117A (en) 1955-09-20 1955-09-20 A method of and an apparatus for separating foreign substances from a pulverous or granular material

Country Status (1)

Country Link
GB (1) GB778117A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020131A1 (en) * 1994-12-24 1996-07-04 ABB Fläkt AB Powder cleaning process and device
EP0801988A2 (en) * 1996-04-18 1997-10-22 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
CN114570935A (en) * 2022-02-28 2022-06-03 湖南达诺智能机器人科技有限公司 Metal granulation equipment
CN114570935B (en) * 2022-02-28 2024-04-30 湖南达诺智能机器人科技有限公司 Metal granulation equipment

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996020131A1 (en) * 1994-12-24 1996-07-04 ABB Fläkt AB Powder cleaning process and device
AU701953B2 (en) * 1994-12-24 1999-02-11 Abb Flakt Ab Method and device for the cleaning of powders
EP0801988A2 (en) * 1996-04-18 1997-10-22 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
EP0801988A3 (en) * 1996-04-18 1999-03-10 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
US5975309A (en) * 1996-04-18 1999-11-02 Kawasaki Jukogyo Kabushiki Kaisha Fluidized-bed classifier
CN1061568C (en) * 1996-04-18 2001-02-07 川崎重工业株式会社 Fluid-bed separator
CN114570935A (en) * 2022-02-28 2022-06-03 湖南达诺智能机器人科技有限公司 Metal granulation equipment
CN114570935B (en) * 2022-02-28 2024-04-30 湖南达诺智能机器人科技有限公司 Metal granulation equipment

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