Online prediction method of replacement rate and gold mud grade in hydro-metallurgy and replacement processes of gold

Abstract

The invention provides a method for real-time prediction of replacement rates and gold mud grades in hydro-metallurgy and replacement processes. The method comprises the following steps: process data acquisition, selection of auxiliary variables and data pre-treatment, establishment of a mechanism model of the replacement rates, establishment of a gold mud grade data model, correction and updating of the models, and the like. The method is characterized by comprising the following steps: establishing the mechanism model of the replacement rates by adopting a chemical reaction kinetic equation and a material conservation principle; establishing the gold mud grade data model by adopting a KPLS algorithm; and correcting a replacement rate prediction model and performing online updating on a gold mud grade prediction model by adopting a correction algorithm. The invention also provides a software system for performing online prediction on the replacement rates and gold mud grades in the replacement processes. The software system comprises a main program, a database and a human-computer interaction interface, wherein system software adopts a model computer of a hydro-metallurgy synthesis process control system as a hardware platform. The method disclosed by the invention is applied to the replacement processes of a gold hydrometallurgy factory, can be used for predicting the replacement rates and the gold mud grades, ensures that prediction results are in a predetermined error range, and can play roles of effective monitoring and guidance on operations of the replacement processes.

Description

technical field [0001] The invention belongs to the field of hydrometallurgy, and in particular provides a method for predicting key technical indicators of hydrometallurgical replacement process based on mechanism and data model, that is, a method for real-time online prediction of replacement rate and gold mud grade. Background technique [0002] Hydrometallurgy technology is a new technology that is gradually mature and urgently needs to be industrialized. Compared with traditional pyrometallurgy, hydrometallurgy technology has the advantages of high efficiency, cleanliness, and is suitable for the recovery of low-grade complex metal mineral resources. Especially in view of the characteristics of my country's mineral resources, which are rich in lean ore, complex symbiosis, and high impurity content, the industrialization of hydrometallurgical processes is of great significance for improving the comprehensive utilization of mineral resources, reducing solid waste productio...

AI Technical Summary

Problems solved by technology

Since the function of the former is not perfect, and the investment is large and difficult to maintain, it cannot fully meet the continuous on-line detection requirements of the hydrometallurgical replacement production process; therefore, the best solution is to use the second way, that is, to establish the replacement rate of the replacement process And the prediction model of gold mud grade, online prediction of replacement rate and gold mud grade without increasing investment

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