Design, fabricate and test dozer trap. Phase I report

Technical Report · Thu Apr 01 04:00:00 EST 1982

OSTI ID:5272671

A great deal of energy and expense is expended on the transfer of overburden onto the outbound haulage system, whether it be conveyors or trucks. Commercially available dozer traps have performed this function. They are, however, designed and fabricated for the construction or sand and gravel industries whose operating conditions are significantly different from the typical coal mine. In particular, the poor material flow characteristics, blocky and broad size distribution of freshly shot overburden, require direct loading of the coal spoil directly into the trap. Presently available dozer traps are designed with high loading heights, small target areas, and even smaller throughput size allowances. With the exception of the Hensler system, none of the dozer traps were constructed to withstand the abuse or rigors of typical mining conditions. Simple modifications to these designs would not be sufficient to rectify the design deficiencies. It was, therefore, determined that a new dozer trap design concept was required. Among the considerations were: material characteristics, operating characteristics of the dozers and outbound haulage systems, mine plan interactions, maintenance and operating conditions, etc. From these comments the existing concepts were re-examined and modified. Finally the best concept was analyzed in terms of environmental, health, safety, technical and economic feasibility and compared to other loading systems and combinations to ascertain whether the dozer trap really did offer any advantages. The results of all the analyses indicated that the proposed dozer trap would indeed provide substantial improvements.

• Research Organization: Foster-Miller Associates, Inc., Waltham, MA (USA)
• DOE Contract Number: AC22-80ET14054
• OSTI ID: 5272671
• Report Number(s): DOE/ET/14054-T1; ON: DE82013962
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
42 ENGINEERING
420206 -- Engineering-- Mining & Drilling Equipment & Facilities-- (1980-1989)
COAL MINING
DESIGN
ENGINEERING
EQUIPMENT
HAULAGE EQUIPMENT
LOADING
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MINING
MINING EQUIPMENT
OVERBURDEN
SURFACE MINING