FIELD: mining. SUBSTANCE: device has a temperature sensor located in a lower portion of the housing of device, fixture members located on the inner surface of the housing, a container for locating a sample disposed within the housing. The container is made in the form of a plurality of sieves. Outer side surface of the sieves are provided with eyelets for fixture members. A lower sieve mounted on support is made tapered and is provided with a drop bottom with a handle. The handle has members for fixing it in two positions. Inner surface of the housing is heat-insulated. EFFECT: improved quality. 4 dwg
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