Coal Conveying System Plagued By Dust, Spillage and Carryback
Product Types Used Belt Cleaning Solutions , Secondary Belt Cleaners
Solutions Martin® Process Improvement Services
Industry Coal-Fired Power
Customer Brayton Point Station Somerset, MA

Problem

Brayton Point Station

A power plant’s coal-handling system starts with a reclaim conveyor under the stockpile and makes its way to the coal gallery. There, twelve conveyors distribute the coal to six different bunkers that feed the plant’s three coal-fired boilers. The plant suffered general dust, spillage and carryback problems throughout the coal conveying system.

Solution

Martin® Secondary Cleaner

Martin Engineering personnel conducted a site survey. As a result of this survey, PG&E Corporation made a commitment to upgrade the entire coal handling facility with Martin Engineering products and Martin® Secondary Belt Cleaners.

Results

To date, three transfer points in the coal gallery have been rebuilt, using proper belt support, wear liners and improved skirtboard seals. In addition, the chutework on two conveyors has been redesigned. A standardized belt cleaning system has been installed on fourteen conveyors.

To provide very consistent tensioning and minimize the amount of maintenance that the cleaners require, all belt cleaners have been installed with air tensioners, connected to the plant's air system. A specially-designed air bag tensioner for Martin® Secondary Cleaners was developed for this plant. Material spillage–particularly at the tail end of the conveyors–has been greatly reduced. The belt cleaning systems are doing a very good job. Plant management is satisfied with the projects.

Resources

PDF - Printable Version of Case Study Download
Brochure - Coal-Fired Power Industry Download
Brochure - Belt Cleaners Download
Brochure - MartinPLUS® Services Download
Brochure - Martin Engineering Corporate Profile Download

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