A powder delivery system

Abstract

This utility model relates to a powder conveying system, which includes a feeding hopper, a connecting part below the feeding hopper, and a discharging hopper below the connecting part; an upper combined valve group, which includes an upper disc valve and an upper plunger valve, wherein the upper disc valve is used to connect or close the feeding hopper and the connecting part, and the upper plunger valve is used to inject sterilizing steam or purging gas into the connecting part; and a lower combined valve group, which includes a lower disc valve and a lower plunger valve, wherein the lower disc valve is used to connect or close the discharging hopper and the connecting part, and the lower plunger valve is used to discharge condensate or gas from the connecting part; this utility model can form a hollow cavity by setting the upper and lower combined valve groups in the connecting part between the feeding hopper, the discharging hopper, and the connecting part, through flexible valve control, and can also use the upper and lower plunger valves to sterilize or purge the hollow cavity.

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