FIELD: machine building.
SUBSTANCE: invention relates to the devices intended to produce mineral fibres, including basalt fibres to be used in machine building, textile industry, chemical engineering, construction industry etc. The device incorporates a water-cooled housing accommodating a hollow vertical shaft wherein an impeller designed to cool the shaft bearings is arranged. The device lower part contains a composite plate made up of a high heat conductivity ring with minor concentric or helical grooves cut therein, rigidly attached to the plate steel disk.
EFFECT: high-efficiency and power saving device to produce high-quality mineral fibres.
3 cl, 1 dwg
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