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WO1997046473A1 - Lit fluidise horizontal de transport et de distribution de poudre - Google Patents

Lit fluidise horizontal de transport et de distribution de poudre Download PDF

Info

Publication number
WO1997046473A1
WO1997046473A1 PCT/NO1997/000143 NO9700143W WO9746473A1 WO 1997046473 A1 WO1997046473 A1 WO 1997046473A1 NO 9700143 W NO9700143 W NO 9700143W WO 9746473 A1 WO9746473 A1 WO 9746473A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid bed
section
powder
fabric
sections
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.)
Ceased
Application number
PCT/NO1997/000143
Other languages
English (en)
Inventor
Odd E. BJARNÖ
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.)
ABB Technology FLB AB
Original Assignee
ABB Flaekt AB
Flaekt AB
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 ABB Flaekt AB, Flaekt AB filed Critical ABB Flaekt AB
Priority to AU31094/97A priority Critical patent/AU3109497A/en
Publication of WO1997046473A1 publication Critical patent/WO1997046473A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
    • B01D53/12—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • B65G53/18—Gas pressure systems operating with fluidisation of the materials through a porous wall
    • B65G53/20—Gas pressure systems operating with fluidisation of the materials through a porous wall of an air slide, e.g. a trough

Definitions

  • the present invention is related to a horizontal fluid bed for transportation and distribution of powder.
  • Transportation and distribution of aluminium oxide to every single one of a number of filter devices in a plant for dry cleaning and fluorine recovery for the aluminium industry normally is performed by the use of different types of distribution boxes to distribute aluminium oxide and thereafter to transport the single portions to separate fluidized gutters or through fluidized gutters comprising several chambers.
  • These systems comprise many different parts and a great number auxiliary devices for the supply of fluidizing air, exhaust fluidizing air through exhaust pipes and supports.
  • Fluidized gutters as described above must have an inclination of approximately 4-6° to provide a secure transpor ⁇ tation. For large plants this means a height difference between the end points of the gutter of several meters which again means that admittance at several levels must be provided to ensure inspection and maintenance.
  • the reliability of the systems may be influenced negativ ⁇ ely if large and heavy particles are not removed before they are brought into the system, such as by means of sieves. Therefore some plants have flow controllers at each single injection point.
  • figure 1 a side view of a section of a fluid bed according to the invention
  • figure 2 discloses a ground view of the section in figure 1
  • figure 3 discloses a section III-III in figure 3
  • figure discloses a section IV-IV in figure 3
  • figure 5 discloses a side view of a fluid bed comprising several sections
  • figure 6 discloses a ground view of the fluid bed in figure 5
  • figure 7 discloses a section VII-V I in figure
  • figure 8 discloses a section through a joint between sections.
  • the fluid bed comprises several connected sections as disclosed in figure 1.
  • the fluid bed comprises vertical slots at each discharging point.
  • This bed is normally filled with aluminium oxide up to approximately 300 mm above the fluidizing fabric 1 along the entire length of the bed which typically may be between 10 and 50 m, and which provides a fluidized transportation bed.
  • the aluminium oxide is brought in at one end of the bed and transported along the bed. By specific intervals the aluminium oxide is discharged through vertical slots and down to the feeding points. To avoid separate adjustments for uniform flow at each slot it is important that height differences between the fluidized aluminium oxide in the bed approximately is zero. This is achieved with a structure having very low friction.
  • the bed very easily may be fluidized and comprises flanges
  • the plant is comprising several sections as disclosed in figure 1.
  • the single sections are connected to each other by flanges 2.
  • Each section comprises an outlet for the powder in the shape of a vertical slot opening 3 in the side of the section. Of the amount of powder flowing by, a part therefore will come through the slot 3 and be brought further to the independent station for further treatment.
  • the independent sections are connected to each other with the flanges 2 and the fabric 1 is bent in the joints, substantially abutting against the fabric of the adjacent section.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

L'invention concerne un lit fluidisé horizontal de transport et de distribution de poudre, le lit comprenant plusieurs sections de lit fluidisé reliées, chaque section comprenant un collecteur d'air sous-jacent présentant une alimentation en air et une limite supérieure se présentant sous la forme d'un tissu, le tissu constituant le fond dans le canal de transport de la section, et au moins certaines des sections présentant une ouverture de dosage (3) destinée à la décharge de poudre.
PCT/NO1997/000143 1996-06-06 1997-06-05 Lit fluidise horizontal de transport et de distribution de poudre Ceased WO1997046473A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU31094/97A AU3109497A (en) 1996-06-06 1997-06-05 Horizontal fluid bed for powder transportation and distribution

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO19962365A NO307042B1 (no) 1996-06-06 1996-06-06 Horisontal fluidseng for transport og distribusjon av pulver
NO962365 1996-06-06

Publications (1)

Publication Number Publication Date
WO1997046473A1 true WO1997046473A1 (fr) 1997-12-11

Family

ID=19899480

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1997/000143 Ceased WO1997046473A1 (fr) 1996-06-06 1997-06-05 Lit fluidise horizontal de transport et de distribution de poudre

Country Status (4)

Country Link
AR (1) AR007501A1 (fr)
AU (1) AU3109497A (fr)
NO (1) NO307042B1 (fr)
WO (1) WO1997046473A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998059094A1 (fr) * 1997-06-25 1998-12-30 ABB Fläkt AB Installation servant a supprimer des gaz uses contenant du fluor
CN117337219A (zh) * 2021-04-28 2024-01-02 安赛乐米塔尔公司 用于冷却并运送金属粉末的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836282A (en) * 1957-03-21 1960-06-01 Wheelabrator Corp Method and apparatus for the removal or recovery of vapours from air or other gases
GB1480261A (en) * 1973-10-24 1977-07-20 Kaiser Aluminium Chem Corp Dry scrubbing tar ladened reduction cell off gases to remove fluorides
DE3024567A1 (de) * 1980-06-28 1982-01-21 Cobolt Carl Compart, Vorm. H.F. Christian Bolte Gegr. 1884, 2000 Hamburg Foerderrinne
US4930691A (en) * 1987-10-09 1990-06-05 Norsk Hydro A.S. Pneumatic dosimeter
EP0506180A1 (fr) * 1991-03-25 1992-09-30 NORSK HYDRO a.s. Appareil pour la régulation automatique du niveau dans un canal fermé ou conteneur pour le transport et/ou la distribution de produits fluidisés
WO1996015846A1 (fr) * 1994-11-23 1996-05-30 ABB Fläkt Aktiebolag Procede de separation de substances d'un milieu gazeux par adsorption a sec

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB836282A (en) * 1957-03-21 1960-06-01 Wheelabrator Corp Method and apparatus for the removal or recovery of vapours from air or other gases
GB1480261A (en) * 1973-10-24 1977-07-20 Kaiser Aluminium Chem Corp Dry scrubbing tar ladened reduction cell off gases to remove fluorides
DE3024567A1 (de) * 1980-06-28 1982-01-21 Cobolt Carl Compart, Vorm. H.F. Christian Bolte Gegr. 1884, 2000 Hamburg Foerderrinne
US4930691A (en) * 1987-10-09 1990-06-05 Norsk Hydro A.S. Pneumatic dosimeter
EP0506180A1 (fr) * 1991-03-25 1992-09-30 NORSK HYDRO a.s. Appareil pour la régulation automatique du niveau dans un canal fermé ou conteneur pour le transport et/ou la distribution de produits fluidisés
WO1996015846A1 (fr) * 1994-11-23 1996-05-30 ABB Fläkt Aktiebolag Procede de separation de substances d'un milieu gazeux par adsorption a sec

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 92-39488/05, Week 9205; & SU,A,1 631 006, (ALUM MAGN ELECTR IND), 29 February 1991. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998059094A1 (fr) * 1997-06-25 1998-12-30 ABB Fläkt AB Installation servant a supprimer des gaz uses contenant du fluor
US6406524B1 (en) 1997-06-25 2002-06-18 Abb Flakt Ab Plant for removing fluor containing waste gases
CN117337219A (zh) * 2021-04-28 2024-01-02 安赛乐米塔尔公司 用于冷却并运送金属粉末的方法

Also Published As

Publication number Publication date
AU3109497A (en) 1998-01-05
AR007501A1 (es) 1999-11-10
NO962365D0 (no) 1996-06-06
NO962365L (no) 1997-12-08
NO307042B1 (no) 2000-01-31

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