The storage tank for the powder particulate matter which it should fetch at fixed quantity in

摘要

(57) is a quantitative sampling device of powdery or granular material composed of (1) a particulate substance storage tank piping with inside (3) particulate matter collected member (2) penetrate the Chu [summary] this device . The collected material from the tank (1), intake located inside the tank and the pipe (4), the member 3 transports Outlet which is installed in a tank outside of the pipe to (5). It is possible sealant (7) is accompanied outlet (5), in accordance with the control, completely open position of the opening, or is set to the closed position of the opening, and maintain. The position of the latter, between the edge (7) stopped and the material (5) opening, an annular gap equal to the size of the particles constituting the particulate material is present. In the fully open position, powdery or granular material to pass through at the maximum flow rate, but in the closed position, the flow rate is very small, high precision can be achieved in quantitative.