Technical progress report No. 35, June 1-30, 1984

Technical Report · Wed Jul 25 04:00:00 EDT 1984

OSTI ID:6753128

The two-week stageloader evaluation at Emery's Wilberg Mine has been successfully completed. The evaluation employed a multichannel data logger to monitor five RAM-1 samplers strategically located in the headgate region. An additional RAM-1 was employed to gather floater data. Samplers were located at the intake, belt entry, headgate operator, stageloader, and No. 20 shield; the frequency of sampling was once every 10 seconds. The mining operation produced very consistent pass-by-pass timed cutting cycles. Once the shearer began either a cutting or clean-up pass, the machine invariably finished the pass without any stoppage. The consistency of the operation leads FMI to believe that the data should be reliable and the results meaningful. Testing was conducted with the stageloader both covered and uncovered. Each of the above conditions was evaluated under various permutations of the four spraybars and a series of flow rates. The objective was to determine the effectiveness of the various spraybars and also the magnitude of the improvement under various water flow rates. The dust concentrations were recorded by the data logger onto tape. The tape requires a computer program to convert and manipulate the data. FMI's existing computer programs required some modification to handle the data. These program modifications are now completed and the data will be printed and analyzed during the next reporting period.

• Research Organization: Foster-Miller, Inc., Waltham, MA (USA)
• DOE Contract Number: AI01-81FE00016
• OSTI ID: 6753128
• Report Number(s): DOE/FE/00016-T52; ON: DE84014911
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
COAL MINING
CONTROL
DUSTS
LONGWALL MINING
MEASURING METHODS
MINING
SAMPLING
SPRAYS
UNDERGROUND MINING