FIELD: machine building.
SUBSTANCE: system comprises a lengthy body, having the first end and the second end distant from the first end. The inlet for gas flow is provided in communication along the flow with the inner part of the body for flow of gas and particles from a source into a body. The outlet from gas flow is provided in communication along the flow with the body for flow of gas and particles from the body and into a dust-removing system. The lengthy spark arrester is arranged in the body between the first and the second end. The spark arrester has multiple spaced wedge-shaped elements, which have a gap between adjacent elements, which is sufficient to interrupt a flow of igniting particles from a source into a dust-removing system.
EFFECT: reduced occurrence of ignitions.
20 cl, 1 tbl, 5 dwg
