Electrical, mechanical, and hydraulic system improvement study for continuous-miner operations. Volume 1. Technical information and conclusions. Final technical report as of March 30, 1980
Coal production using continuous mining machines has rarely reached the level of production for which the machines are designed. The lost opportunity for higher coal production is directly related to machine downtime. The specific goals of this program were to identify those mechanical, electrical and hydraulic components and systems directly responsible for the majority of continuous mining machine failures and operational delays; to determine what is being done by machine manufacturers, by companies specializing in the rebuilding of continuous miners, and by operating coal mines to rectify these problems; and to identify technology presently utilized in other industries that could be applied in the design of continuous mining machines to reduce this downtime. The major mechanical problem areas identified listed in order of decreasing severity are: cutter head clearance chains, conveyor systems, crawler undercarriage, seals, cutter components, and lack of standardization. The major electrical problem areas similarly listed are: trailing cables, contactors, motors, modularization, accessibility, controls and interlocks, and diagnostics. The major hydraulic problem areas are: hoses and fittings, oil contamination, seals, and cylinders. A cross-referenced index to the pertinent literature describing what has been done and alternate technology is included. This report for the continuous miner is one of a set of three reports on continuous miner operations.
- Research Organization:
- Woodward Associates, Inc., San Diego, CA (USA)
- DOE Contract Number:
- AC01-77ET12221
- OSTI ID:
- 6386763
- Report Number(s):
- DOE/ET/12221-T2(Vol.1); ON: DE81024980
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
CONTINUOUS MINERS
FAILURE MODE ANALYSIS
UNDERGROUND MINING
COAL MINING
ELECTRICAL EQUIPMENT
FAILURES
HYDRAULIC EQUIPMENT
MINING EQUIPMENT
CUTTER LOADERS
EQUIPMENT
MINING
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
012000* - Coal
Lignite
& Peat- Mining
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)