Evaluation of four coals for blast furnace pulverized coal injection
- 2 Downloads
One of the effective methods of reducing coke consumption is pulverized coal injection. The most important problems encountered in this method are reduced permeability, unburned and high ash content. To select the best coal for injection, suitable tests can be used. Therefore, experiments such as proximate and ultimate analysis, Rock-Eval and combustion tests were performed on four kinds of coals from different mines, including Sarakhs, Sangrood, Karmozd, and Tabas. The results of proximate and ultimate analysis indicated that although the sulfur content and ash content of selected coals were a little high, they were suitable for coal injection. The results of combustion experiments and Rock-Eval tests showed that Karmozd coal was the best one to be injected into blast furnace. The result indicated that the mixing of coals could improve the combustion properties of pulverized coals.
Key wordspulverized coal blast furnace non-coking coal
Unable to display preview. Download preview PDF.
- Stainly R, Bennett P. PCI Coal-Status and Forecast [C/OL] //First International Meeting on Ironmaking. Belo Horizonte: 2001. https://doi.org/www.jellinbah.com.au/LibraryFiles/Brazil%20Ironmaking%20Conference%20Presentation%20-%20September%202001.pdf.
- Babich A I, Gudenau H W, Mavrommatis K T, et al. Choice of Technological Regimes of a Blast Furnace Operation With Injection of Hot Reducing Gases [J]. ISIJ, 2002, 38(4): 288.Google Scholar
- Leonard J W. Coal Preparation [M]. 5th ed. Baltimore: Society of Mining, Metallurgy and Exploration Inc, 1991.Google Scholar
- Ward C R. Coal Geology and Coal Technology [M]. Melbourne: Blackwell Scientific Publication, 1984.Google Scholar
- Waguri S. Pulverized Coal Injection for Blast Furnace (PCI) [C] // New Energy and Industrial Technology Development Organization. Clean Coal Technology in Japan. Kawasaki: New Energy and Industrial Technology Development Organization, 2003: 45.Google Scholar
- Berkowitz N. An Introduction to Coal Technology [M]. New York: Academic Press, 1984.Google Scholar
- Braide S P. Geological Development, Origin and Energy Mineral Resource Potential of the Loeoja Formation in the Southern Bida Basin [J]. Journal of Mining Geology, 1992, 28(1): 33.Google Scholar