Volume type automatic feeder

The utility model relates to catalysis charging technology of petroleum technology, and relates to a volume type automatic feeder. The volume type automatic feeder is characterized in that a catalyst storage tank is arranged above a volume tank vertically; a feeding port in the top of the volume tank is communicated with a discharge port of the catalyst storage tank through a feeding pipeline; a discharge port in the bottom of the volume tank is communicated with a feeding pipeline of a subsequent equipment regenerator through a discharge pipeline; the volume tank and the catalyst storage tank are communicated through a pressure balance line; the feeding pipeline and the discharge pipeline are provided with overturning electromagnetic valves, and the two overturning electromagnetic valves are communicated with a controller; an air supply device is respectively communicated with the catalyst storage tank, the discharge pipeline and subsequent equipment through pressurizing lines. The volume type automatic feed