A kind of soft measurement method of mud layer height in red mud settlement process

Abstract

A soft measurement method for the height of the mud layer in the red mud settlement process belongs to the field of automatic measurement technology, comprising the following steps: establishing a mapping with the mud layer height (L) of the settlement tank by collecting the data of the red mud settlement process under different working conditions; Standardize the collected red mud settlement process data and eliminate abnormal data; standardize the data and use function transformation to map its value to the value interval of [0.1, 0.9]; substitute the data processed in step 3 into the neural network, The weight coefficients are determined through the training of the neural network; the data of the red mud settlement process is collected in real time, and the collected data is processed by steps 2-3, and brought into the trained neural network in step 4 to realize the settlement of the red mud The measurement of the height of the mud layer in the process; the real-time online measurement of the height of the mud layer is realized, which overcomes the shortcomings of the current method, which is large in maintenance, expensive, and not widely used.

Description

technical field [0001] The invention belongs to the technical field of automatic measurement and relates to a soft measurement method for the mud layer height in the red mud settlement process. Background technique [0002] The excellent properties of metal aluminum promote the rapid development of alumina production in the world. In the process of alumina production, the red mud settlement process is an extremely critical process. Among them, the mud layer height of the settling tank is the whole red mud settlement process. The core technical index of the process, it not only reflects the quality of the settling tank settling performance, but also has important significance for the subsequent production of alumina. Therefore, detecting the height of the settling tank mud layer is an important task in the alumina production process. [0003] At present, alumina plants mostly use manual analysis and on-site instrument detection to measure the height of the mud layer in the se...

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Problems solved by technology

[0003] At present, alumina plants mostly use manual analysis and on-site instrument detection to measure the height of the mud layer in the settling tank: the manual analysis generally takes 2 hours to analyze and cannot reflect the settlement performance of the settling tank in real time; Large amount of maintenance, expensive, not widely used

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