A method for on-line real-time detection of ore properties in the grinding process

Abstract

The invention discloses a method for on-line real-time detection of ore properties in the grinding process. Firstly, off-line experiments are used to determine the distribution range of unit consumption of ore crushing of various properties; The initial state parameters when starting up and running; after the mill has been running for a certain period of time, the state parameters of the mill are measured; based on the parameters obtained in steps 2 and 3, it is obtained that the mill is in the grinding production process The unit consumption of steel balls and lining plates, as well as the relationship factor between the bearing pressure and weight of the mill; the running state parameters of the mill are collected online in real time through the automatic system, and the current unit consumption of ore crushing energy is calculated, and then online according to the calculation results. Determine the nature of the current ore. The above method can realize the classification and detection of the ore properties in the grinding process, so that the operator or the automatic control system can adjust the control parameters in time to ensure the efficient and stable operation of the production process and equipment.

Description

technical field [0001] The invention relates to the technical field of mineral processing control in the mining and metallurgy industry, in particular to a method for online real-time detection of ore properties during the grinding process. Background technique [0002] In the process of beneficiation, it is usually necessary to break large pieces of ore into tiny particles that can be dissociated, which requires the use of grinding equipment, such as autogenous mills, semi-autogenous mills, etc. are closely related to the ore properties. Under certain process conditions, the properties of the ore entering the grinding equipment are required to be as stable as possible within an appropriate range. Under this condition, the operator or the automatic control system can fine-tune the production process to ensure the stability of the grinding process and products. However, due to normal fluctuations in the front-end process and changes in ore sources, the properties of the ore ...

AI Technical Summary

Problems solved by technology

However, the fluctuation law of the ore feeding property is not obvious. Due to the differences in the technical level and experience of different operators, the results of their judgments are not the same, resulting in different degrees of fluctuations in the production process; and the off-line experiment takes too long, which not only increases Production costs, and often the speed of experimentation cannot keep up with the rate at which ore properties are changing

The automatic control system also has a decline in the control effect due to the lack of sufficient control basis, so the online real-time judgment of ore properties during the grinding process is of great significance

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