Location

Rolla, MO

Session Start Date

6-11-1999

Session End Date

6-17-1999

Keywords and Phrases

Dust Sampling; Airborne Dust; Instantaneous Dust Sampler; Dust Deposition; Mechanized Coal Face; Middle Anatolian Lignite Mine

Abstract

In this paper the results of a research study on the characterisation 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 were 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/m3, the difference in measurements becomes significant.

Department(s)

Mining and Nuclear Engineering

Appears In

U.S. Mine Ventilation Symposium

Meeting Name

8th U.S. Mine Ventilation Symposium

Publisher

University of Missouri--Rolla

Publication Date

6-11-1999

Document Version

Final Version

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Jun 11th, 12:00 AM Jun 17th, 12:00 AM

Characteristics of Airborne Dust in the Return Airways of the Mechanized Longwall Face

Rolla, MO

In this paper the results of a research study on the characterisation 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 were 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/m3, the difference in measurements becomes significant.