Powder and Bulk Engineering
Friday, August 22, 2014
Skip Navigation LinksHome) Item Details
Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
Case Histories
Item Details:
Publication Date: 11/2010
Pages: 3
PDF Format
Related Item(s):
Recommended Item:
Custom hopper liner easily handles 8+ million tons of coal

A power company installs a custom polymer liner in a coal hopper to improve material discharge.

Appalachian Power Co., a subsidiary of American Electric Power (AEP), operates a coal-fired power plant near Glen Lyn, Va., that can generate up to 340 megawatts of electricity. When operating at peak capacity, the Glen Lyn plant annually consumes more than 700,000 tons of bituminous coal, which is delivered to the plant in 100-ton-capacity bottom-dump railcars. The coal discharges from each railcar into a 35-ton-capacity pyramid-shaped in-ground bunker hopper, then onto a large belt conveyor directly beneath the hopper. The conveyor moves the coal to the plant’s main storage bunkers, where it’s kept before being transferred to the furnace. The plant had problems with the coal discharging from the hopper that required extra labor and overtime to resolve. To lower operating costs and improve the railcar-unloading efficiency, the plant needed to find a cost-effective way to ensure consistent discharge.

To read this entire article:

You may purchase this article now for personal use. Simply click the Buy Item button above, enter your payment details, and download the article. It will be available to you for 7 days for viewing, printing, or saving for future reference. All articles are copyrighted by CSC Publishing, Inc. and cannot be used for commercial purposes without express permission in writing from the Publisher. This includes but is not limited to: web posting, printing, or sharing via email.


Your payment information is forwarded in an encrypted form, using 40- or 128-bit Secure Socket Layer technology, only to our payment gateway ( for processing.


To view an article, you must have Acrobat Reader installed on your computer. Click on the icon to download Acrobat Reader free of charge.

      Copyright 2014, CSC Publishing Inc. ALL Rights Reserved * Privacy policy