A kind of preparation method and system of cement clinker

Abstract

The invention discloses a method and a system for preparing cement clinker, which relate to the related field of cement clinker preparation. In order to solve the problem that a large amount of heat released in the firing process of cement clinker still exists overflow or waste, resulting in low firing efficiency. Low, longer firing times are a problem. One end of the heating rotary kiln is fixedly connected with a second heat revolving pipe, the other end of the second heat revolving pipe is equipped with an exhaust fan, and the output end of the exhaust fan is installed with a first heat revolving pipe, the first A second preheater is installed at the other end of the heat return pipe, a sixth material flow pipe is installed at the output end of the second preheater, and a fourth powder delivery pump is installed at the other end of the sixth material flow pipe , the output end of the fourth powder conveying pump is installed with a seventh material flow pipe, the seventh material flow pipe is located at the upper end of the heating rotary kiln close to the feeding position, and the input end of the second preheater is installed with a first 5. Material circulation pipes.

Description

technical field [0001] The invention relates to the field related to the preparation of cement clinker, in particular to a method and system for preparing cement clinker. Background technique [0002] Cement clinker is a semi-finished product obtained by using limestone, clay, and iron as the main raw materials, which are prepared into raw meal in an appropriate proportion, burned until part or all of it is melted, and cooled. In the cement industry, the most commonly used Portland cement clinker is mainly composed of calcium oxide, silicon dioxide and a small amount of aluminum oxide and iron oxide. The main mineral composition is tricalcium silicate, dicalcium silicate, tricalcium aluminate and tetracalcium aluminoferrite. In the cement production process, most of the raw materials are crushed, such as limestone, clay, iron ore and coal. [0003] Since cement clinker is made of raw materials in appropriate proportions, burned to a molten state, and finally cooled to obta...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for preparing cement clinker, so as to solve the problem that the large amount of heat released in the firing process of cement clinker still exists in overflow or waste, which leads to low firing efficiency. Low, longer firing time issues

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