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An adding machine is a class of mechanical calculator, usually specialized for bookkeeping calculations. In the United States, the earliest adding machines were usually built to read in dollars and cents. Adding machines were ubiquitous office equipment until they were phased out in favor of calculators in the 1970s and by personal computers beginning in about 1985. The older adding machines were rarely seen in American office settings by the year 2000.
A digital intelligent ball adding method and system of a semi-autogenous mill, an electronic device and a medium
A digital intelligent ball-adding method, system, electronic equipment, and medium for a semi-autogenous grinding mill (SAG) are disclosed, relating to the field of data processing technology. The method includes: collecting mill operating data and determining three sets of weighting coefficients based on the liner service life. Based on these weighting coefficients, the Saturation of the SAG is calculated in three stages: first, the initial Saturation is calculated using parameters such as mill power; then, the second-stage Saturation is calculated using parameters such as feed parameters; and finally, the third-stage Saturation is obtained by combining the liner service life. The three-stage Saturations are weighted and fused to obtain an operating status evaluation value. When the evaluation value exceeds a preset threshold, a corresponding ball-adding command is sent to the ball-adding machine, realizing automatic ball-adding control of the SAG. Implementing the technical solution provided in this application achieves the effect of improving the grinding efficiency of the SAG.
Owner:BEIJING JINFA IND & TRADE