Characteristics of airborne dust in the return airways of the mechanized longwall face
In this paper the results of a research study on the characterization of airborne dust in the return airway of the mechanized longwall face at Middle Anatolian Lignite Mine, OAL are presented. Dust, temperature, moisture and air velocity measurements are carried out in the return airways of the fully mechanized longwalls. Then the analyses of results on real-time concentration data, mass concentration data, effect of moisture, heat and air velocity on dust concentration are made. It has been found that amount of dust in return airway is directly related to the face activities and to the amount of settled dust on the return airway. Moreover, the relationship between dust deposition rate and distance was studied. Another objective of this study is to determine the reliability of different dust samplers used in sampling. Comparison of results showed that for the lower dust concentration, there is not any significant differences between the measurements of samplers. But as the dust concentration exceeds 15 mg/m{sup 3}, the difference in measurements becomes significant.
- Research Organization:
- Middle East Technical Univ., Ankara (TR)
- OSTI ID:
- 20020942
- Resource Relation:
- Conference: 8th US Mine Ventilation Symposium, Rolla, MO (US), 06/11/1999--06/17/1999; Other Information: PBD: 1999; Related Information: In: Proceedings of the 8th US mine ventilation symposium, by Tien, J.C. [ed.], 740 pages.
- Country of Publication:
- United States
- Language:
- English
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