Spray jet, as used in the mining industry, is unblocked by depressing the split jet parts against a spring allowing the spray medium to flush the blockage

摘要

The jet consists of two half cylindrical members (7) forming the jet bore (13) in a housing (2) and pressed against a buttress (9) by a spring (8) and sealed by a ring (12). Blockage of the outlet by dust may be removed by pressing the jet elements against the spring so that the spray medium flushes the blockage.