CONVEYOR BELT PROCESS SCALE FOR ROCK WOOL

The subject of invention is a conveyor belt process scale for rock wool used to control and adjust the rock wool square weight in the process of rock wool manufacture. The conveyor belt process scale is designed to measure the rock wool mass flow. The whole conveyor belt (2) structure together with a driving motor (3) is suspended on movable levers (4), where part of the gravity force of the conveyor belt (2) with the motor (3) is intercepted by dynamometers (5) and the rest balanced out by means of weights (7) of the lever system (6). The mass ratio of the freely suspended conveyor belt (2) plus the motor (3) to the weights (7) is chosen in such a way, that the dynamometers (5) are intercepting mainly the net weight of the rock wool (1) layer on the conveyor belt (2). Predmet izuma je tračna procesna tehtnica kamene volne za nadzor in uravnavanje specifične površinske gostote kamene volne v proizvodnji kamene volne. Tračna procesna tehtnica je zasnovana na merjenju masnega toka kamene volne. Celotna konstrukcija transportnega traku (2) je skupaj s pogonskim motorjem (3) obešena na gibljivih vzvodih (4), pri čemer del sile teže transportnega traku (2) z elektromotorjem (3) prestrežejo merilniki sile (5), preostali del pa je uravnotežen z utežmi (7) preko vzvodja (6). Pri tem je razmerje med masami prostovisečega transportnega traku (2) z motorjem (3) in utežmi (7) izbrano tako, da merilniki sile (5) prestrežejo predvsem neto težo plasti kamene volne (1) na transportnem traku (2).