A method for detecting the energy distribution in the mill of the intelligent automatic speed regulation system of the mill

Abstract

A method for energy distribution inside a mill for an intelligent automatic speed adjusting system for a mill comprises steps as follows: step 1, acquisition of vibration signals of a barrel wall of the mill; step 2, data acquisition, processing, communication and saving; step 3, conversion into energy values and distribution in the circumference; step 4, calibration of the loading state of the mill and feature values of vibration data of the barrel wall of the mill; step 5, intelligent speed adjustment. The vibration condition that a medium in the mill shocks the barrel wall of the mill is directly measured by the aid of a vibration sensor, the measurement means is more direct, the anti-interference capability is higher, measurement signal features are more obvious, the method is safe, reliable, economical and practical, an operator can accurately judge the material filling rate of the mill and the steel ball grinding effect according to a vibration data energy distribution figure, and then a direct judgment basis is provided for adjustment of a grinding technology by the operator.

Description

technical field [0001] The invention relates to an automatic adjustment system for the rotational speed of a mill barrel, in particular to a detection method for energy distribution in a mill in an intelligent automatic speed adjustment system for a mill. Background technique [0002] The mill is the core equipment for converting large particles of solid materials into tiny particles in industries such as building materials, metallurgy, nonferrous metals, electric power, and mining. Mills can be divided into four types from the structure: ball mill, autogenous mill, semi-autogenous mill and rod mill. Functionally, it can be divided into various types such as mining mill, cement mill, coal mill and alumina mill. The steel ball is the most important grinding medium in the mill. The mill relies on a certain speed to bring the steel balls in the cylinder to a certain height and throw or discharge the material impacting the cylinder of the mill at a certain initial speed, so tha...

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Problems solved by technology

[0004] Among them, the judgment of the load level and the size of the adjustment of the mill speed are the key contents. For a long time, the mineral processing plant has been judged by the experience of the operator, and its shortcomings are very obvious, such as strong influence by human factors, adjustment lag, labor Intensive, in order to maintain a stable production adjustment, the operator needs to monitor and adjust 24 hours a day

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