Sliding door mechanism

Collection and storage hoppers should be provided at the bottom of each affected device for removal of batches of the fly ash. The hoppers may be equipped with sliding doors, mechanical trap doors, rotary partitioned devices, Archimedean screws, conveyor vibrators, belt conveyors and other devices. 

A safety door mechanism to prevent opening while the unit is under pressure. The locking device may be actuated directly by internal pressure or indirectly through an automatic switch. The door itself may be the swing-out or sliding type. 

Figure 9 (a) French door and (b) sliding door gating mechanisms in hemicarceplex formation and dissociation, (c) Chair-to-boat... 

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