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The Effect of Depth of Cut and Bit Type on the Generation of Respirable Dust.

Authors
Strebig-KC; Zeller-HW
Source
NTIS: PB 243 683 :16 pages
Link
NIOSHTIC No.
10000242
Abstract
Laboratory tests were conducted by the Bureau of Mines to determine the effect of depth of cut and bit type on respirable coal dust generation. Apparatuses were constructed to contain the coal samples, measure the linear cutting forces, and analyze the dust generated. Single-bit tests were conducted in Illinois No. 5 And Pittsburgh seam coals with five bit types at four depths of cut. The results showed that bit type did not significantly influence dust production. On the other hand, deep-cutting bits were more efficient and generated substantially less respirable dust per pound of coal broken than shallow-cutting bits.
Publication Date
19750101
Document Type
IH; Report of Investigations
Fiscal Year
1975
NTIS Accession No.
PB-243683
NTIS Price
A03
Identifying No.
RI-8042
NIOSH Division
TCRC;
Source Name
NTIS: PB 243 683
State
IL;
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