Development of a high capacity longwall conveyor. Final technical report

Technical Report · Sat May 01 00:00:00 EDT 1982

DOI:https://doi.org/10.2172/5317914· OSTI ID:5317914

Sparks, C

The objectives of this program were to develop, fabricate, and demonstrate a longwall conveying system capable of transporting coal at a rate of 9000 tons/day (1000 tons/hr) and capable of accommodating a surge rate of 20 tons/min. The equipment was required to have the structural durability to perform with an operating availability of 90%. A review of available literature and discussions with longwall operators identified the problem areas of conveyor design that required attention. The conveyor under this contract was designed and fabricated with special attention given to these areas, and also to be easily maintainable. The design utilized twin 300 hp drives and twin inboard 26-mm chain at 270 ft/min; predictions of capacity and reliability based on the design indicating that it would satisfy the program requirements. Conveyor components were critically tested and the complete conveyor was surface-tested, the results verifying the design specifications. In addition, an instrumentation system was developed with analysis by computer techniques to monitor the performance of the conveyor. The conveyor was installed at a selected mine site, and it was the intention to monitor its performance over the entire longwall panel. Monitoring of the conveyor performance was conducted over approximately one-third of the longwall panel, at which point further effort was suspended. However, during the monitored period, data collected from various sources showed the conveyor to have exhibited its capability of transporting coal at the desired rate, and also to have conformed to the program requirements of reliability and availability.

• Research Organization: Foster-Miller Associates, Inc., Waltham, MA (USA)
• DOE Contract Number: AC22-75ET12496
• OSTI ID: 5317914
• Report Number(s): DOE/ET/12496-T4; ON: DE82015683
• Resource Relation: Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
42 ENGINEERING
HAULAGE EQUIPMENT
DESIGN
ENGINEERING
PERFORMANCE TESTING
LONGWALL MINING
COAL MINING
DIAGRAMS
MINE HAULAGE
MINING EQUIPMENT
MONITORING
UNDERGROUND MINING
EQUIPMENT
MATERIALS HANDLING
MATERIALS HANDLING EQUIPMENT
MINING
TESTING
012000* - Coal
Lignite
& Peat- Mining
420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)