Mixer for olefin and oxygen gas

The invention discloses a mixer for olefin and oxygen gas. The mixer comprises a circulating gas main pipeline, an oxygen gas pipeline and a mixing chamber. The tail end of the circulating gas main pipeline communicates with the mixing chamber; the oxygen gas pipeline is arranged along the axis of the circulating gas main pipeline; a plurality of oxygen dispersing pipes are arranged at the tail end of the oxygen gas pipeline; the oxygen gas dispersing pipes are arranged perpendicular to the oxygen gas pipeline and are symmetrically distributed; the end part of each of the oxygen dispersing pipes is connected with the inner wall of the circulating gas main pipeline; a plurality of oxygen gas dispersing holes are uniformly formed in each of the oxygen gas dispersing pipes; and the oxygen gas pipeline communicates with the mixing chamber through the oxygen gas dispersing holes. Based on the gas flowing characteristics, the mixer for the olefin and oxygen gas is designed. The mixer can be used for quickly, uniformly and accurately mixing oxygen gas and olefin, so that a burning explosion region in a mixing process is minimized, and the mixed gas is kept far away from the explosion region.