Optimization method for production full process of novel dry-process cement clinker

Abstract

The invention relates to the technical field of cement production, and particularly relates to an intelligent optimization method for production full process technical indexes and operation variables of a pre-decomposition kiln of a novel dry-process cement clinker. The optimization method comprises the steps of selecting three modulus values of raw materials, fineness of the raw materials, feeding amount of a raw-material mill system, feeding amount of a pre-decomposition kiln system, f-CaO content of a clinker and three modulus values of the clinker as decision variables for the technical indexes; establishing a power consumption model of the raw-material mill system, a power consumption model of the pre-decomposition kiln system, a coal consumption model of the pre-decomposition kiln system, an KH value model of the clinker, an n value model of the clinker, a p value model of the clinker and a quality model of the clinker; carrying out optimization calculation on the decision variables for the technical indexes; and selecting and calculating the operation variables of the pre-decomposition kiln. According to the optimization method, complex mechanisms of the raw-material mill system and the pre-decomposition kiln system are not needed to analyze, the power consumption models of the raw-material mill system and the pre-decomposition kiln system and the quality model of the clinker can be established only by historical data in the production process. The model establishment process is relatively simple.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to an intelligent optimization method for the whole process process index of new dry process cement clinker production and the operation variables of a precalciner kiln. Background technique [0002] The new dry process cement clinker production line mainly includes two systems: raw meal mill and precalciner kiln. The raw meal mill and precalciner kiln system undertake the tasks of raw meal preparation and clinker firing respectively. They also consume a lot of energy - electricity and coal while completing the production task. Therefore, how to make these two systems run safely and stably under appropriate indicators, and obtain qualified raw meal and clinker products with lower energy consumption, has become the goal pursued by every cement enterprise. [0003] The working principle of raw meal mill and precalciner kiln is as follows figure 1 shown. After the limeston...

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Problems solved by technology

[0007] In view of the current new dry process cement production line - the relationship between the quality index and energy consumption index of the raw meal mill system and the precalciner kiln system is complicated, the production energy consumption is difficult to further reduce, and the clinker f-CaO of the precalciner kiln system The problem of unstable quality, the technical problem to be solved in the present invention is to provide a method for calculating the process index of the raw meal mill and the precalciner kiln system, and the set value of the operating variable of the precalciner kiln system

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