Improving Dust Control on Longwall Shearers.
Pimentel-RA; Adam-RFJ; Jankowski-RA
Proc Soc Min Eng AIME 113th Annu Meeting Los Angeles, California, 1984 Feb; :63-82
Many longwall operators experience difficulty complying with the federal regulation limiting average dust exposure. Others are currently in compliance, but the dust exposure limit keeps them from increasing their production. Spray water is a major means of dust control. Excess water can cause problems in the transportation system and the cleaning plant, and reduces the British thermal unit value of the run-of-mine coal. Thus, the dust exposure per unit of water sprayed must be maximized. This paper discusses underground tests recently completed as part of a Bureau of Mines research program to determine the effects of variations in spray water flow rate, pressure, proportioning, and spray orientation on longwall shearers.
Proc. Soc. Min. Eng. AIME 113th Annu. Meeting, Los Angeles, California, Feb.26-Mar.2, 1984, PP. 63-82