An adjustment method for an intelligent automatic speed regulation system of a mill

Abstract

The invention discloses an adjustment method based on an intelligent automatic speed adjustment system for a grinder. The adjustment method comprises the steps that initialization is performed to check whether each module works normally; vibration data of a medium impacting on the barrel wall of the grinder and technological data of operation of the grinder are acquired; whether swelling occurs is judged; if yes, a swelling treatment process is started; if not, a working condition is normal, so that a current rotation speed is not adjusted; when the vibration data of the barrel wall of the grinder is smaller than P1, and a slope is smaller than C1, the speed is adjusted to H1 hertz; when the slope is between C1 and C2, the speed is adjusted to H2 hertz; when the slope is greater than C2, the current rotation speed is maintained; when the vibration data of the barrel wall is greater than P2, and the slope is greater than C3, the speed is adjusted to H4 hertz; and when the slope is smaller than C3, the speed is adjusted to H3 hertz; after a speed adjustment command is emitted, the rotation speed is subjected to amplitude limiting treatment and then the rotation speed of the grinder is adjusted through the motor, so that intelligent automatic speed adjustment for the grinder is realized; the current power and oil pressure value of the grinder are cooperatively taken as reference, so that ore grinding efficiency can be improved to the greatest extent by the intelligent automatic speed adjustment system for the grinder; and economic benefit of an ore concentration plant is improved.

Description

technical field [0001] The invention relates to an automatic adjustment system for the rotational speed of a mill barrel, in particular to an adjustment method for 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 that the mill The large material ...

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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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