APPARATUS FOR PRODUCING CONTINUOUS FIBRE FROM BASALT MATERIAL Russian patent published in 2012 - IPC C03B37/09 

FIELD: chemistry.

SUBSTANCE: apparatus relates to production of continuous fibre from basalt material, particularly the design of a draw hole feeder, and can be used on fibre production plants. The apparatus for producing continuous fibre from basalt material comprises a feeder, having an electrically heated orifice plate with draw plates at its bottom, having wall thickness within the given range. The wall of the draw plate is made from a bimetal such that the coefficient of heat conductivity of the bimetal material on the inner surface of the draw plate is 2.0-2.5 times higher than that of the bimetal material on the outer surface. On the inner surface of each draw plate there are spiral grooves, lying longitudinally from the inlet opening to the outlet opening, where on each pair of neighbouring draw plates, the direction of rotation of the generatrix of the spiral groove on the surface of one draw plate is positive (anticlockwise), and the direction of rotation of the generatrix of the spiral groove on the surface of the other draw plate is negative (clockwise).

EFFECT: high operational reliability of the device in varying weather conditions.

3 dwg