A method of matching coal for cement calcination

Abstract

The invention discloses a coal-fired matching method for cement calcination. The method comprises the following steps: S1, analyzing the chemical composition of ingredients in each batching area, and obtaining the chemical composition of limestone and auxiliary materials for batching; S2, the type of coal to be matched Carry out quality analysis to obtain industrial analysis data, calorific value and coal ash chemical analysis of each coal type to be matched; S3, determine the coal type that initially matches the batching area; S4, burn each initially matched coal type into coal Ash is mixed into the ingredients in the corresponding ingredient area to form a mixture; S5. Carry out a flammability test on the mixture, and select a coal with a good flammability grade as the coal used in the ingredients in the corresponding ingredient area; guide the production line to select the appropriate Coal types, optimize the indicators of the production line, guide the selection and use of different fuels, and provide theoretical and data support; in order to achieve the purpose of saving energy and reducing consumption, and improving product quality.

Description

technical field [0001] The invention belongs to the technical field of coal-fired cement, and more particularly, the invention relates to a method for matching coal-fired for cement calcination. Background technique [0002] The rational use of energy in the cement industry has always been the focus of researchers. The rapid development of the cement industry has brought about problems such as resources, energy, and the environment. These problems have severely restricted the development of the cement industry. Therefore, how to use energy efficiently and reasonably is particularly important for my country's cement enterprises. [0003] In my country's cement industry, especially in the production of new dry process cement, the main fuel is coal, and the selection and utilization of fuel determines the economic benefits of the enterprise to a large extent; my country's coal resources are widely distributed, so the quality of coal It is very complicated; the addition of coal ...

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Problems solved by technology

[0003] In my country's cement industry, especially in the production of new dry process cement, the main fuel used is coal, and the selection and utilization of fuel determine the economic benefits of the enterprise to a large extent; my country's coal resources are widely distributed, so the quality of coal It is very complicated; the incorporation of coal ash after combustion of different coal qualities will have an important impact on the composition of cement raw materials and the calcination of clinker. It is based on manual experience to determine the type of coal mixed in cement in each region, which has a great subjective influence. Cement kiln is one of the earliest industrial equipment to use pulverized coal as fuel, but the research on the combustion process of pulverized coal started relatively late

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