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EPURATION PNEUMATIQUE [3 records]

Record 1 2007-03-27

English

Subject field(s)
  • Mineral Processing (Metallurgy)
  • Processing of Mineral Products
  • Coal Preparation
DEF

An appliance for the dry cleaning of ore or coal.

OBS

It consists of a perforated deck, with vertical ribs or riffles, which is reciprocated and the motion keeps the bed of raw coal sufficiently mobile for the blast of air from below to effect a process of stratification (or layering). The coal rises to the surface, with dirt at the base and a central layer of middlings.

French

Domaine(s)
  • Minéralurgie (Métallurgie)
  • Préparation des produits miniers
  • Préparation des charbons
DEF

Table de concentration à secousses travaillant à sec dont le plateau poreux laisse passer un courant d’air assurant une certaine fluidisation de la masse morcelée et favorisant la séparation par vitesse équivalente de sédimentation dans l’air.

OBS

Tables pneumatiques. [...] Dans l’industrie minérale, deux grandes familles ont été envisagées : - le type à cheminements opposés des lourds et des légers que l’on peut rapprocher des jigs quand on utilise de l’air pulsé, - le type à étalement dont la conception rappelle celle des tables à secousses travaillant en voie humide.

Spanish

Save record 1

Record 2 2007-03-27

English

Subject field(s)
  • Processing of Mineral Products
  • Coal-Derived Fuels
DEF

Cleaning in an air current.

French

Domaine(s)
  • Préparation des produits miniers
  • Combustibles dérivés des charbons
DEF

Épuration dans un courant d’air.

Spanish

Save record 2

Record 3 2002-11-20

English

Subject field(s)
  • Processing of Mineral Products
  • Mining Equipment and Tools
  • Mineral Processing (Metallurgy)
DEF

A machine in which the feed is stratified by means of pulsating currents of air and from which the stratified products are separately removed. [Definition standardized by ISO.]

CONT

[Most] processes involve concentration of ores with water, but there are equivalent processes employing air as the separating medium. Pneumatic jigs and tables operate on the same principles of gravity separation as wet jigs and tables but find use in desert regions where water is scarce and on ores that are best treated dry, such as asbestos, which depends upon the light, fluffy nature of the mineral for efficient concentration.

OBS

air jig: term standardized by ISO.

French

Domaine(s)
  • Préparation des produits miniers
  • Outillage et équipement (Exploitation minière)
  • Minéralurgie (Métallurgie)
DEF

Bac à pistonnage dans lequel le liquide est remplacé par de l’air.

OBS

La pulsation d’un courant d’air induit une stratification de l’alimentation et le produit stratifié est collecté à part.

OBS

bac d’épuration pneumatique : terme normalisé par l'ISO.

Key term(s)
  • jig pneumatique

Spanish

Campo(s) temático(s)
  • Preparación de los productos mineros
  • Equipo y herramientas (Explotación minera)
  • Explotación de minerales (Metalurgia)
Save record 3

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