Online prediction method for concentration of outlet mother liquor in aluminum oxide evaporation process under working condition change

• Main Authors: QIAN XIAOSHAN, LING XIAOHUI, CHEN MINGXUAN, YI XIAOXI, XU LISHA, YUAN XINMEI, ZENG WENTING, XIONG YINGUO, CUI XINGLI
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides an aluminum oxide evaporation process outlet mother liquor concentration online prediction method under working condition changes, and relates to the technical field of aluminum oxide evaporation outlet mother liquor concentration prediction. The online prediction method for the concentration of the outlet mother liquor in the aluminum oxide evaporation process under the working condition change comprises the following steps: step 1, measuring a parameter S *; 2, carrying out standardization processing on the parameters; 3, an AWLS-SVR model is established; 4, predicting the concentrations of total alkali, aluminum oxide and caustic alkali in the discharged material at the T moment; 5, carrying out reverse normalization processing on the concentration to obtain a predicted value Y * of the concentration of the outlet mother liquor at the T moment, collecting parameters of the concentration of the outlet mother liquor of the evaporator at the T moment, and adding the parameters into the