Detection method of key variables in hydrometallurgical dense washing process

Abstract

The invention provides a hydrometallurgy thick washing process key variable real-time prediction method which comprises the steps of process data acquisition, auxiliary variable selection and standardization processing, hybrid model establishment and the like. The method is characterized by establishing a parallel structure hybrid model formed based on a mechanism model and a data driver model; and taking the model based on data driving as an error compensation model of the mechanism model. The invention further provides a software system for carrying out thick washing process key variable prediction. The software system comprises a main program, a database and a man-machine interaction interface. The software system takes a model computer of a hydrometallurgy process control system as a hardware platform. The method is applied to the thick washing process of some hydrometallurgy factory and can predicate overflow concentration and underflow concentration, and the predication results are within the predetermined error range. The advantages of the method are that the method is simple in model, high in explainability, good in extrapolation performance and high in prediction precision.

Description

technical field [0001] The invention belongs to the technical field of hydrometallurgy. In particular, it provides a method for detecting the underflow concentration in the dense washing process of hydrometallurgy, that is, it provides a method for predicting the underflow concentration in real time. Background technique [0002] Hydrometallurgy technology is an ancient modern science and technology with great development prospects. Compared with traditional pyrometallurgy, hydrometallurgy technology is convenient for the separation and recovery of polymetallic resources, does not produce flue gas pollution, and is environmentally friendly. The advantages of environmental friendliness. Especially in view of the complex, difficult-to-select and low-grade mineral resources in my country, hydrometallurgy technology is more superior. It should be said that hydrometallurgy can better meet the requirements of sustainable development of mineral resources today. [0003] In recent...

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Problems solved by technology

[0008] (2) In the coagulation and sedimentation zone, the solid particles in the suspension have formed tighter flocs, and the flocs continue to settle, but at a slower speed;

[0009] (3) In the interference settlement area, some particles settle due to their own weight, and some particles are hindered by dense particles, making it difficult to continue to settle;

Modeling research on dense washing process is still in the exploratory stage

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