Method for improving metallurgical coke thermal state performance detection accuracy

Abstract

The invention discloses a method for improving coke thermal state performance detection accuracy, which is determined to be two key steps, namely influence factors of a sample preparation process on coke thermal state performance and influence factors of a detection process on coke thermal state performance, and four sample preparation methods are summarized in the influence factors of the samplepreparation process on the coke thermal state performance. A reasonable coke thermal state performance detection sample preparation method is stipulated according to enterprise requirements or trade contracts; in the detection process, coke thermal state performance influence factors are analyzed to determine five ways for improving the metallurgical coke thermal state performance detection accuracy, namely the number of detection samples, the hearth temperature of a coke thermal state performance detector, a thermocouple of the coke thermal state performance detector, reaction gas of the cokethermal state performance detector and a standard sieve. The method provided by the invention effectively improves detection accuracy of the thermal state performance of the metallurgical coke, and has very important significance for blast furnace production.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method for improving the detection accuracy of the thermal performance of metallurgical coke. Background technique [0002] Metallurgical coke is the most important basic raw material in blast furnace smelting. In recent years, with the development and progress of blast furnace smelting technology, especially the rapid development of large-scale blast furnace volume, high blast temperature technology and blast oxygen-enriched coal injection technology, coke is used as a blast furnace The skeleton of the inner material column ensures that the ventilation and liquid penetration in the furnace are more prominent. The thermal properties of coke (reactivity CRI and post-reaction strength CSR) have a great impact on the modern blast furnace smelting process, and become a key factor restricting the stable, balanced, high-quality and efficient production of molten iron in the blast f...

AI Technical Summary

Problems solved by technology

[0006] Although the national technical standards have been formulated, coke is a bulk industrial raw material and production product, and coke itself is a complex and uneven industrial product. The influencing factors of thermal performance testing are extremely complex, and the testing standards describe the details of its testing operations. It is not clear, the regulations are not very detailed, and there are many partial leaks in the testing process. There are certain problems in the accuracy of the testing data of coke in the thermal state, which will cause inaccurate testing data, which will affect the determination of coke quality. For coke Production and blast furnace ironmaking will have serious impacts, and trade disputes will arise in the coke trade