METHOD FOR CONTROL OF DREDGE EXCAVATION SETUP Russian patent published in 1997 - IPC

FIELD: automated process of excavating minerals by dredge. SUBSTANCE: control method provides for changing of dredge turning angle from one corner of cutting face to another and calculation of correcting coefficient $$$ which takes into account crescent- like shaping of cutting face, calculation of dredge productivity and specific consumption of electric energy for digging and lifting of ground $$$, with regard to them also calculated is correcting coefficient $$$ taking into account hardness of ground according to formula $$$. Calculated values of thickness $$$ and width $$$ of single-cut portion of ground are calculated by formulas $$$, where $$$ and $$$ are optimal values of thickness and width of single cut portion of ground. Also performed are measuring of actual speed of cutting and sideward moving of dredge, comparison of all current and measured values and their charging according to error signal. EFFECT: high efficiency.