Coal starts to flow after car has been rotated 90° and is empty after rotation of 150°; representative samples obtained by pipes, fixed at given angle to falling stream of coal, attached to side of car; tests indicate car-dumper sampling to be representative of car load plus advantage of retaining mine identity. (see also Coal Utilization v 13 n 9 Oct 1959 p 27-9)
Railroad car-dumper coal sampling
Min Eng
Mining Engineering ; 11 , n 5
1959
3 pages
Aufsatz (Zeitschrift)
Englisch
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Railroad car-dumper coal sampling
Engineering Index Backfile | 1959
|Semi-automatic railroad car dumper
Engineering Index Backfile | 1923