PRESSURE TANK DEVICE FOR AIR BLAST

摘要

PROBLEM TO BE SOLVED: To provide a pressure tank device for air blast without blowing out powder with air to a periphery at the time of air blast work and exhaust of a pressure tank from supply of a projection material to the pressure tank, etc. SOLUTION: It has characteristics to drill a suction hole 13 communicated to a suction duct 12 on a side part of a supply port 2 by providing a pinch valve P to an upper part of the supply port 2 on a pressure tank 4 devised free to open and close the supply port 2 of a projection material by a mushroom type elevating opening and closing valve 3 by communicating and connecting it to it and providing a projection material supply hopper 10 with a supply gate 9 on an upper part of the pinch valve P by communicating and connecting it to it.