FR2660423B1 - METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS. - Google Patents

METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS.

Info

Publication number
FR2660423B1
FR2660423B1 FR9004254A FR9004254A FR2660423B1 FR 2660423 B1 FR2660423 B1 FR 2660423B1 FR 9004254 A FR9004254 A FR 9004254A FR 9004254 A FR9004254 A FR 9004254A FR 2660423 B1 FR2660423 B1 FR 2660423B1
Authority
FR
France
Prior art keywords
sand box
powder
powders
enable
high temperature
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 - Lifetime
Application number
FR9004254A
Other languages
French (fr)
Other versions
FR2660423A1 (en
Inventor
Baudin Jean-Claude
Le Potier Dominique
Couterne Jean-Claude
Jacquin Philippe
Levaillant Jean-Paul
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR9004254A priority Critical patent/FR2660423B1/en
Priority to EP91400894A priority patent/EP0451048B1/en
Priority to DE69102666T priority patent/DE69102666T2/en
Priority to AT91400894T priority patent/ATE108015T1/en
Publication of FR2660423A1 publication Critical patent/FR2660423A1/en
Application granted granted Critical
Publication of FR2660423B1 publication Critical patent/FR2660423B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/049—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis with provisions for working under increased or reduced pressure, with or without heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
    • B01F29/401—Receptacles, e.g. provided with liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
    • B01F29/401—Receptacles, e.g. provided with liners
    • B01F29/402—Receptacles, e.g. provided with liners characterised by the relative disposition or configuration of the interior of the receptacles
    • B01F29/4021—Multi-compartment receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/40—Parts or components, e.g. receptacles, feeding or discharging means
    • B01F29/401—Receptacles, e.g. provided with liners
    • B01F29/402—Receptacles, e.g. provided with liners characterised by the relative disposition or configuration of the interior of the receptacles
    • B01F29/4022—Configuration of the interior
    • B01F29/40222—Configuration of the interior provided with guide tubes on the wall or the bottom
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/026—Arrangements for charging or discharging the materials to be dried, e.g. discharging by reversing drum rotation, using spiral-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Drying Of Solid Materials (AREA)
  • Powder Metallurgy (AREA)

Abstract

The process and apparatus according to the invention dry and degas powders by using a dynamic process under vacuum and at a high temperature in a special device called a "sand box" (10). This sand box (10) is subjected to slow alternating rotatory movements so as to cause the powder being treated to pass progressively from one compartment to another, both compartments being inside the sand box (10). The rotations thus enable the powder to be agitated for a variable but predetermined time. The sand box (10) is introduced into a leakproof vessel (20) situated upstream of a possible valve that might enable the treated powder to be routed towards a storage compartment, or to be sent for immediate use, without releasing the vacuum. The degassing operation is carried out under vacuum and at a high temperature. Application to the manufacture of components sintered by hot isostatic pressing.
FR9004254A 1990-04-03 1990-04-03 METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS. Expired - Lifetime FR2660423B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR9004254A FR2660423B1 (en) 1990-04-03 1990-04-03 METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS.
EP91400894A EP0451048B1 (en) 1990-04-03 1991-04-02 Process and apparatus for drying and degassing powders
DE69102666T DE69102666T2 (en) 1990-04-03 1991-04-02 Method and device for drying and degassing powder.
AT91400894T ATE108015T1 (en) 1990-04-03 1991-04-02 METHOD AND DEVICE FOR DRYING AND DEGASSING POWDER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9004254A FR2660423B1 (en) 1990-04-03 1990-04-03 METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS.

Publications (2)

Publication Number Publication Date
FR2660423A1 FR2660423A1 (en) 1991-10-04
FR2660423B1 true FR2660423B1 (en) 1992-06-12

Family

ID=9395402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9004254A Expired - Lifetime FR2660423B1 (en) 1990-04-03 1990-04-03 METHOD AND PLANT FOR DRYING AND DEGASSING POWDERS.

Country Status (4)

Country Link
EP (1) EP0451048B1 (en)
AT (1) ATE108015T1 (en)
DE (1) DE69102666T2 (en)
FR (1) FR2660423B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2839145B1 (en) * 2002-04-30 2004-07-02 Hivert Systemes Automatises PROCESS FOR VACUUM DRYING OF A FACTORY PART AND INSTALLATION
US8357251B2 (en) * 2010-07-30 2013-01-22 United Technologies Corporation Powder processing method
CN107485559B (en) * 2017-09-21 2020-06-09 莱芜职业技术学院 Powder drying storage box
CN109556374B (en) * 2018-12-29 2023-12-19 钟山县洲星食品有限公司 Fern powder drying device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191509971A (en) * 1915-07-08 1916-05-04 Elias Djandiery Improvements in Grain Drying Apparatus.
FR1002719A (en) * 1949-12-10 1952-03-10 Vacuum dryer improvements
US3280470A (en) * 1964-07-23 1966-10-25 Robert L Kuntz Method and apparatus for oven dehydrating compounds
US3599709A (en) * 1970-04-02 1971-08-17 Patterson Kelley Co Heat exchange mill
HU184672B (en) * 1979-03-21 1984-09-28 Richter Gedeon Vegyeszet Apparatus for handling wet solid materials, preferably pasty materials with heating or cooling

Also Published As

Publication number Publication date
ATE108015T1 (en) 1994-07-15
DE69102666T2 (en) 1995-01-12
EP0451048A1 (en) 1991-10-09
FR2660423A1 (en) 1991-10-04
EP0451048B1 (en) 1994-06-29
DE69102666D1 (en) 1994-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse