Dissertation > Excellent graduate degree dissertation topics show

Research on Influence of Composition and Construction of Sinter on Quality

Author: DongXiangHua
Tutor: ZhaoYuePing
School: Guizhou University
Course: Non-ferrous metallurgy
Keywords: mini-sintering compression strength volume shrinkage
CLC: TF046.4
Type: Master's thesis
Year: 2008
Downloads: 275
Quote: 3
Read: Download Dissertation

Abstract


In this paper, applying optical micro-scope and compressive testing machine to study sintering character of each iron ore and mixture ores, and carrying out the sintering-cup test with materials which were used in the mini-sintering, the rotor drum strength conventional examination and the orthogonal experiment range analytic method to study the influence of the iron material matches, the basicity, the fuel consumption and the moisture content on the sinter technology targets. With the help of optical microscope, researches the effect of the sinter mineral composition and structure to its quality.From the research, we find that under the condition of the same basicity, the softening temperature of Brazil iron ore is maximum, and the softening temperature of Bajie ore is minimum. When Brazil iron ore mixed with the domestic fine ore by 1:1, the softening temperature of the mixture of Brazil iron ore and Yangchun iron is minimum. According to the sintering-cup experiment, we know that under the condition of ratio of iron is less, especially for the Brazil iron ore, the sample has better rotor drum strength. It reflects that the ratio of Brazil iron influences the generation of liquid phases process during the sintering cup process. Magnetite is mainly in Yangchun ore,swelling its large size. When it mixed with Brazil ore by 1:1, it can reduce the size of Yangchun ore shrinkage. In the sintering-cup experiment, with the Yangchun iron in a gradual increasing, the sample strength was increased after first downward trend. It reflects that the ratio of Yangchun ore increased and swelling increased can affect the strength of the sinter. That Brazil iron ore mixed with Indian-60 ore, Bajie ore and Yangchun ore each other by 1:1 can generate more calcium ferrite than the Brazil ore in the microsructure under the same basicity condition. The observation of the sintering-cup experiment with domestic mine will help improve the strength and sinter grade. Brazil iron ore mixed with Indian-60 ore, Bajie ore and Yangchun ore each other by 1:1 carry out sintering, to compare with the compressive strength, the sinter of Barzil ore is minimum, and mixed ores with Brazil ore and Indian-60 ore followed, the mixture with Brazil ore and Bajie ore is maximum.

Related Dissertations

  1. The Research on the Formation and Application of Carbonaceous Mesophase,TQ127.1
  2. Within the connection developed to detect its mechanical properties of zirconia abutment,R783.6
  3. The Monomer Compoment and Fillers Microstructure Effect on the Properties of Dental Resin Composites,R783.1
  4. Research on the Composite Silicate Thermal Insulation Material for External Wall,TU551
  5. Investigation on the Performance Characteristics and Humidity Resistance of Sodium Silicate Sand Hardened by Twice Microwave Heating Process,TG221
  6. The New Kind of Fire Prevention and Block Material ——the Experimental Research in Natural Parameter of Solid Foam,TD752
  7. Autoclaved fly ash blind hole brick masonry force performance test,TU364
  8. Research on Related Regulation between Sinter Bond-phase Microstructure and Sinter Quality,TF046.4
  9. Research and Application of Metallogenic Mechanics for Fine Grinding Magnetite Sintering,TF046.4
  10. Sol - gel prepared by low the contraction PMMA/SiO_2 hybrid materials and properties of,TB32
  11. The Development of a Ready-to-eat Food from Whitebait,TS254.5
  12. Study on Shaping Manner and Porogen Species for Preparation of Poly L-Lactide/β-Tricalcium Phosphate Porous Scaffold,R318.08
  13. Glass fiber reinforced light-cured resin-based composites and Performance,TB332
  14. The Research of Kinetics of UV Photopolymerization in Super Low Temperature,O631.5
  15. Sintered gangue shale brick masonry under local compression Study,TU522.3
  16. Research on Frozen-Thaw Behavior Affect the Mechanical Property of Chengdu Clay,TU442
  17. Experimental and Theoretical Research of Influence on Electrical Resistivity of Soil-Cement by Pollution,TU411
  18. Study on Humus-containing Soil Stabilization,TU447
  19. Experimental and Theoretical Study of Influence on Strength of Soil-Cement Polluted by Sewage and Industrial Wastewater,TU411
  20. Experimental Research on Cement Clinker Calcination with Coal Stone as Argillaceous Material,TQ172.6

CLC: > Industrial Technology > Metallurgical Industry > General issues > Smelting of raw materials and ore pretreatment > Ore pretreatment, sintered pellets > Sintering
© 2012 www.DissertationTopic.Net  Mobile