Vibration damping and buffering device for outlet of high-pressure coal slurry pump

The utility model belongs to the technical field of high-pressure coal slurry pump outlet vibration damping and buffering, and discloses a high-pressure coal slurry pump outlet vibration damping and buffering device which comprises a high-pressure coal slurry pump, an outlet pipe, an air bag, a spherical buffering tank, a mushroom type valve, a pressure gauge, a burner pipe and an auxiliary vibration damping and buffering mechanism. The top of the outlet pipe is fixedly connected with the bottom of the air bag, and the top of the air bag is communicated with the bottom of the spherical buffer tank. The problems that after a high-pressure coal slurry pump is expanded and quantified, the buffering capacity of a vertical buffering tank cannot meet the requirement, the pressure peak value generated by stroke motion of the coal slurry pump cannot be controlled within the safety range, the safety accident of flange leakage and weld crack caused by large vibration of an outlet pipeline and a burner head is likely to