The objective of explosion isolation is to protect interconnected parts in a process and prevent the explosion from propagating.
Many closed volumes, silos and equipment in processes are connected to each other by pipelines, pneumatic conveyors or aspiration lines. When a dust explosion occurs, the flames and pressure waves are emitted from these channels and connections to other parts of the process. Pre-compression and flame jet intensify the explosion in these interconnected volumes. The results are secondary explosions that can lead to even larger explosions and detonations.
An explosion isolation system prevents the spread of explosions and the occurrence of secondary explosions. Thus, it minimizes the negative consequences of explosion and protects the connected equipment in the process.