Patent ID: 11958681
Assignee: SHANGHAI SHIDONGKOU FIRST POWER PLANT
Field: Handling (Mechanical engineering)
Classification: CPC B  E | IPC B  E

Claim 0:
1. A ventilating and blanking device for a coal storage silo, comprising a top blanking pipe, and further comprising an axial flow fan and a baffle door, the top blanking pipe comprising a first pipeline and a second pipeline, wherein an inlet end of the second pipeline is connected to an outlet end of the first pipeline, an air supply pipe is connected to a side wall of the second pipeline, the axial flow fan is arranged at an inlet end of the air supply pipe, an outlet end of the second pipeline is connected to a central telescopic blanking pipe of the silo, two sides of the baffle door are both provided with bosses, the bosses match the outlet end of the first pipeline and the outlet end of the air supply pipe, and the baffle door is movably arranged in the second pipeline and connected to a driving mechanism;
during feeding, the driving mechanism drives the baffle door so as to make the baffle door close the air supply pipe, and the axial flow fan is shut off; and
during ventilating and blanking, the driving mechanism drives the baffle door so as to make the baffle door close the first pipeline, and the axial flow fan is turned on.