Intelligent control system for vertical mill based on fuzzy PID (proportion integration differentiation) algorithm

An intelligent control system, intelligent control technology, applied in general control system, control/regulation system, adaptive control, etc., can solve difficult to meet process requirements and sorting efficiency, system output and control variable steady-state error, PID control It is difficult to obtain the effect and other problems, to achieve the effect of qualified output and fineness, small overshoot, and strong anti-interference ability

CN103028480AActive Publication Date: 2013-04-10SHANGHAI TRIUMPH ENERGY CONSERVATION ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-04-10

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Abstract

The invention relates to the technical field of control on production equipment, and particularly relates to an intelligent control system for a vertical mill based on a fuzzy PID (proportion integration differentiation) algorithm. The intelligent control system comprises the vertical mill, a dust remover and a feeding device, wherein the feeding device comprises an unloader, a bucket elevator and a storage bin; and the intelligent control system is characterized in that an air inlet in the bottom of the vertical mill is connected with a fan via a pipeline, a cold-air device and a hot-air stove are arranged on the pipeline between the air inlet and the fan, a cold-air adjusting valve and a hot-air adjusting valve are respectively arranged on the cold-air device and the hot-air stove, a vertical mill material layer PID controller is arranged on the feeding device, and an in-mill pressure difference fuzzy PID controller is arranged on the cold-air adjusting valve. According to the intelligent control system disclosed by the invention, mathematical models of the change of the vertical mill material layer thickness and an in-mill pressure difference along with parameters of a feeding amount, a mill inlet hot-air temperature and the like can be established only by inputting and outputting data without analyzing the complex grinding process of the vertical mill; and the intelligent control system is simple in process, high in adaptability, fast in the dynamic response time of a controller algorithm, high in robustness, high in control accuracy, and good in market prospect.
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Description

[technical field]

[0001] The invention relates to the technical field of production equipment control, in particular to an intelligent vertical mill control system based on a fuzzy PID algorithm. [Background technique]

[0002] Vertical mill is an ideal large-scale grinding equipment, which is widely used in cement, electric power, metallurgy, chemical industry, non-metallic minerals and other industries. Based on the principle of material bed grinding, it uses the relative movement of the grinding disc and the grinding roller to grind materials. It integrates crushing, drying, grinding, and grading transportation. It has high production efficiency and can grind lumps, granules and The powdery raw material is ground into the required powdery material. As an important equipment in the grinding production process, the vertical mill not only has a wide range of uses, but also has the advantages of high drying efficiency, large feeding particle size, small footprint, low wear, ...

Examples

Embodiment Construction

[0044] The present invention will be further described below in conjunction with accompanying drawing, and the flow process and principle of this method are very clear to those skilled in the art. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] The present invention takes the TVR46 / 23 vertical mill slag production line as an example to illustrate the realization process of the intelligent control system. Its production process diagram is as follows figure 1 shown.

[0046] 1. Overview of intelligent control system of vertical mill

[0047] The control of the vertical mill is to reduce the vibration value of the vertical mill as much as possible to ensure the stable operation of the vertical mill while ensuring the fineness, output and humidity of the slag product. In actual production, the thickness of the material layer and the pressure difference inside the mi...