Kononchuk S. Improvement of work of coke cupola on the basis of research of intercommunication between the parameters of cupola process

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U006632

Applicant for

Specialization

  • 05.16.04 - Ливарне виробництво

24-10-2013

Specialized Academic Board

Д 26.232.01

Essay

The aim is to study the relationship between the parameters of the melting iron in the cupola furnace coke and development on this basis of practical recommendations aimed at improving the technical and economic performance of her work (increasing productivity, reducing coke consumption, the temperature rise in the production of pig iron). The object of the study is processes that occur during melting in the cupola furnace coke. The subject of the study is the relationship between the main incoming and outgoing parameters cupola process. Cupola process as a cybernetic system designed to transform input data into output. The process of burning coke in a cupola for the changes in temperature of the blast and its oxygen content. We derive the equation for the combustion of carbon in the cupola. The dependence of the coefficient of excess oxygen on the relative consumption of coke for cold, warm and oxygen-enriched air blast. Specified database on the enthalpies of pig iron, slag, limestone decomposition, exothermic reactions, heat loss through the masonry and flue gases. The theoretical mathematical models enthalpy iron and slag temperature and their chemical composition. An original method of calculation of the material and heat balances in the variation of coke and blast. Developed recommendations to improve the overall performance of furnaces, reduce coke consumption, and increase the temperature of cast iron. The mathematical model of the process cupola has been tested and implementation in a production environment on the cupola coke KIROVOGRADSKIY of "Red Star" and "Sahgidromash". Coke saving after implementation of the recommendations was 20%.

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