Estimation method relating to semi-autogenous mill power

Abstract

The invention discloses an estimation method relating to semi-autogenous mill power applicable to the field of production application in an ore grinding process for mines, and particularly relates toa method for estimating the semi-autogenous mill power by combining an echo state network method with related parameters of technical practical experience. Aiming at the semi-autogenous mill equipmentcharacteristics and process characteristics in actual applications, particularly characteristics in SABC process link application, a method for combining with the echo state network by utilizing a feeding quantity, an insensate stone return quantity, an ore grinding concentration, a lump ore quantity, mill noise and steel ball quantity is provided so as to estimate the semi-autogenous mill power,so that the production level of subsequent operations is improved.

Description

technical field [0001] The invention belongs to the production and application field of the grinding process in mines, and in particular relates to a method for estimating the grinding power of a semi-autogenous mill by using an echo state network method combined with relevant parameters of process practice experience. Mainly aiming at the characteristics of semi-autogenous grinding equipment and the process characteristics in practical applications, especially in the application of SABC process, a method is proposed to use the semi-autogenous grinding machine's feed rate, boulder return rate, grinding concentration, The amount of large ore, grinding sound, and steel ball amount, combined with the echo state network method, is used to predict the power of the semi-autogenous mill to improve the production level of subsequent operations. Background technique [0002] The grinding process is widely used in mining, cement, metallurgy, chemical industry, construction and other f...

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Problems solved by technology

[0009] For the calculation of grinding power consumption, the above method either has certain randomness and time-consuming and labor-intensive shortcomings in determining the power through repeated trials, or relies on pure theoretical or empirical calculation formulas proposed by some scholars, but these formulas are used in actual grinding. There are great potential safety hazards in the mining process. Due to the complex and changeable on-site environment, these purely theoretical or empirical methods have great limitations.

At the same time, these formulas seldom consider the field application, and most of them are based on the laboratory.

For example, these formulas almost all involve the two parameters of mill filling rate and mill speed. First, the mill filling rate is an unmeasurable variable. Secondly, the mill speed is almost a constant in my country's mineral processing plants, so simply consider this Two variables, regardless of factors such as the feed block ratio of the mill, the ball-to-ball ratio, the grinding concentration, and the grinding sound, are difficult to meet the requirements of practical applications.

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