Online forecasting method of pH value of ore pulp in bauxite flotation process
A technology of flotation process and prediction method, which is applied in the direction of testing pH value, using chemical indicators for analysis, etc., can solve the problems that cannot be used to solve pH value control, has no online control method, and relies on manual experience, etc.
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[0050] Such as figure 1 As shown, the present invention uses the regression model of ore alkali consumption based on industrial production data, the mechanism model based on the chemical principle of flotation solution, and the error compensation prediction model based on autoregressive moving average to realize the prediction of the pH of the flotation slurry. Here, 285 sets of continuous production data from a bauxite concentrator are used as a case for analysis (not including data under abnormal operating conditions). The first 215 sets of data are used for parameter identification, and the last 70 sets of data are used for effect verification.
[0051] 1. Regression model of ore alkali consumption
[0052] The reaction of ore and alkali will consume part of the alkali, so that the alkali added to the slurry cannot be used to adjust the pH value of the slurry; at the same time, because the diaspore ore contains diaspore, chlorite, and iron ore A variety of minerals such as rock...
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