MULTIDRAWING NOZZLE FEEDERS FOR PRODUCTION OF MINERAL FIBERS OUT OF MELT OF ROCK Russian patent published in 2003 - IPC

FIELD: production of mineral fibers. SUBSTANCE: invention relates to the sphere of production of mineral fibers from melts of rock, that is to the sphere of the drawing nozzle feeders for production of a continuous mineral fiber, and it may be used at production of filaments by means of high-temperature processing of a mineral rock formation. The feeder contains a body, in the low part of which there is the bushing plate with dies. Bodies of the dies are made in the form of a truncated cone. Under the dies there is a cooler with lamellas, and between the bottom the bushing plate and top of the cooler there are supporting members placed across the bushing plate and spaced apart by 0.3-2.5 width of the bushing plate from each other and from butts of the body. Distance from a lamella of the cooler with the support members up to the smaller header of the body of the nearest die is 3-15 mm. EFFECT: decrease of the cost price of mineral fibers. 3 cl, 1 dwg