618-0804/01 – Alternative Ironmaking Methods (AZVŽ)
| Gurantor department | Department of Metallurgy and Foundry | Credits | 5 |
| Subject guarantor | doc. Ing. Pavlína Pustějovská, Ph.D. | Subject version guarantor | doc. Ing. Pavlína Pustějovská, Ph.D. |
| Study level | undergraduate or graduate | Requirement | Compulsory |
| Year | 1 | Semester | summer |
| | Study language | Czech |
| Year of introduction | 2004/2005 | Year of cancellation | 2015/2016 |
| Intended for the faculties | FMT | Intended for study types | Follow-up Master |
Subject aims expressed by acquired skills and competences
- student will be able to characterize the basic concepts and context of new technological methods of pig iron production
- students will be able to describe and mathematically formulate the main physical - chemical processes in various reduction forms and smelting of iron ore resources
- students will be able to assess the technological efficiency and energy performance of new technologies for the production of iron
Teaching methods
Lectures
Seminars
Individual consultations
Tutorials
Project work
Summary
The subject is focused on improvement basic knowledge of alternative technologies outside the blast furnace ironmaking. It deepens and extends knowledge of the reduction processes in various raw materials and temperature conditions. It compares the strengths and weaknesses of each technology and analyze the possibility of raw material and energy optimization of pig iron production.
Compulsory literature:
Recommended literature:
Way of continuous check of knowledge in the course of semester
Points assessment
- Elaboration of Semestrals works No.1, No.2 (including the presentation of results)
- Elaboration of final test
E-learning
For electronic communication with teachers enjoy university e-mail address:
http://staff.vsb.cz/
There is a continuous expansion of e-learning elements into teaching.
Other requirements
- Active participation in exercises
- Active participation in laboratory
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
LECTURES
1. Characteristics of the development of iron and steel in the world and in CR. Energy and raw limit further development. Main drawbacks of the present-day technology of iron production. Tradition and historical context.
2. The importance of changes in raw material provision of the steel industry to develop new ironmaking alternative technology. Lump ore, metal-bearing wastes and their treatment.
3. Alternative reduction technology. Fuels provisions. Complementarity functions fuel. New unconventional sources of fuels and reducing agents.
4. Distribution of alternative technologies in the field of direct reduction and smelting reduction. Basic charakteristics threats technological processes. Discussion of deficiencies and merits of alternative ironmaking technology. Comparisons with conventional blast furnace production.
5. Production of sponge iron, respectively. metallized product (HBI). Specifications reduction process, the factors influencing the level (degree) metallization. Possibilities of modeling the kinetics of reduction gas. Submission of exercise for the seminar.
6. Seminar on the reduction problems. Ore charge in the blast furnace and fluidized bed reactor. Discussion of the results of the seminar task.
7. Description and critical assessment of technologies Midrex Hyl. The advantages, prospects and problems of hydrogen metallurgy in particular in connection with the use of carbon and degazation gas, liquid pyrolysis products, waste oils from petroleum refining and coal.
8.The pssibility of adapting coal based allothemic steelmaking processes for direct smelting of iron ore. Environmental protection for this processses.
9. Technological principles of the most widespread used technology smelting reduction. Ambivalence of reducing and heat balance over the reduction shaft.
10. Specific features and advantages of the methods COREX, DIOS, HIsmelt. Operational flexibility of processes. Air emission from COREX.
11. Duplex technology partial metallization blast-furnace materials. Waste treatment options. Duplex COREX-Midrex.
12.The development of smelting reduction -oxidation process (IFCON) abroad and in the CR (TROP). Combining the use of alternative technologies and blast furnace production in the integrated metallurgical company.
13. Ecological aspects of alternative ironmaking technology. Radical reduction of air and water pollution. Significant reductions in greenhouse gas emissions as the guiding idea of the new proposal ironmaking technology.
EXCERCISES
1.Introduction, definition of key variables and concept, planning of excursions
2.Individual semestral work and preparing for the presentation
3.Calculation of the degree of oxidation of gaseous mixture
4.Calculation of the theoretical reducing gas consumption, the semestral work No.1
5.Calculation of the reduction of carbon monoxide in the process: DIOS, HIsmelt, CCF
6.Calculation of the amount of converged gas
7. Excursion, a short report from the excursion
8.The calculation of specific amount of slag in the COREX technology, the semestral work No.2
9.Calculation of the amount of metallic iron in Midrex technology
10.Calculation of the degree of post-combustion for smelting technology
11.Calculation of the degree of heat (fDIOS, HIsmelt)
12.Elaboration of final test
13.Presentation of semestral work,
14. Evaluation exercise (semestral work, final test)
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction