High-online-rate open-type cement kiln intelligent optimization expert system

Abstract

The invention discloses a high-online-rate open-type cement kiln intelligent optimization expert system, which comprises an expert control system server running on an upper computer server, wherein the expert control system server is in bidirectional communication with a DCS control system by means of a switch through adopting an OPC communication protocol; all control points adopt dual-loop control; the expert control system server comprises a model prediction control kit, a neural network kit, a fuzzy control kit, an optimization technical kit, a soft measurement technical kit and an adaptive functional kit; a kiln tail high-temperature flue gas online analysis system, a kiln head burning zone temperature measurement analysis system and an inclined-zipper clinker intelligent infrared temperature measurement system are additionally arranged on a cement rotary kiln system; acquired signals are transmitted to the DCS control system; and a raw material preparation system is equipped with a neutron cross line analyzer in a matched mode. The high-online-rate open-type cement kiln intelligent optimization expert system fundamentally solves the influence of human factors on the operation of the cement kiln, significantly improves the reliability of thermal equipment of the kiln system, and greatly reduces the probability of crust blocking of a preheater and a decomposing furnace system.

Description

technical field [0001] The invention belongs to the technical field of cement kiln control systems, in particular to an open cement kiln intelligent optimization expert system with high online rate. Background technique [0002] The cement rotary kiln is the main equipment for burning the raw material prepared by grinding to the clinker under high temperature, and it is the "heart" of the dry process cement production line. The cement rotary kiln mainly emphasizes the close coordination of "wind, coal, material, and speed", so the system is a process system with a large lag and complex coupling relationships among multiple variables, that is, when adjusting any variable, this variable must be considered Effects on other process variables. With the development of industrial intelligent technology, many research institutions have closely combined industrial intelligent technology with the automatic control of process materials, and developed various forms of intelligent exper...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an open cement kiln intelligent optimization expert system with high online rate, aiming at solving the problem that the online rate of the existing cement kiln control system in the above-mentioned background technology is not high enough, and the calcination system cannot be kept in an optimal state, resulting in The coal and electricity consumption per unit product is high, and the control system mainly adopts single-module PID loop control, the operation process is complicated, human factors have a great influence on the operation of the system, and the operation stability of the cement rotary kiln is low.

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