Conveyer weigher for controlling surface density of mineral wool

摘要

The object of the present invention are rock wool process conveyor scales for controlling and adjusting the specific surface density of the rock wool in rock wool production. The rock wool process conveyor scales are based upon the measurement of the rock wool mass flux. The entire conveyor belt (2) construction together with the driving motor (3) is suspended from mobile levers (4), part of the gravitational force of the conveyor belt (2) and the driving electric motor (3) being intercepted by the dynamometers (5), and the remaining part being counterbalanced by the weights (7) via the levers (6). The ratio of the masses of the freely suspended conveyor belt (2) and of the motor (3) to the weights (7) is selected in such a manner that the dynamometers (5) intercept principally the net weight of the rock wool layer (1) present on the conveyor belt (2).