Scraper-chain conveyors for mineral mining

摘要

A composite floor plate assembly for locating between side walls of a pan of a scraper-chain conveyor has an access plate fitted into an aperture in a floor plate proper. A locking bar secures the access plate in position. The access plate has the same thickness as the floor plate but lies wholly flush with the floor plate as does the locking bar and the fixings to prevent collision with the scraper-chain assembly.