Location

Rolla, Missouri

Session Dates

11 Jun 1999 - 17 Jun 1999

Keywords and Phrases

Water Injection; Crack; Internal Water; External Water; Hydrophilicity of Coal; Seepage; Capillary; Wetting Contact Angle

Abstract

This paper discussed the means of improving dust control efficiency using water injection. At first, the authors point out that internal water has effect on dust control. The objective of water injection is to increase the amount of internal water. Secondly, by analyzing the development trend of crack in top-coal, proper water injection station and boleholes can be determined for dust control.

Department(s)

Mining and Nuclear Engineering

Meeting Name

8th U.S. Mine Ventilation Symposium

Publisher

University of Missouri--Rolla

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

Water Injection in Longwall Top-coal Caving Face in China

Rolla, Missouri

This paper discussed the means of improving dust control efficiency using water injection. At first, the authors point out that internal water has effect on dust control. The objective of water injection is to increase the amount of internal water. Secondly, by analyzing the development trend of crack in top-coal, proper water injection station and boleholes can be determined for dust control.