Path Conversion Type Mixing Agent Input Device By Pressure

摘要

The present invention relates to an admixture input device that simplifies the configuration of a metering facility and reduces pumping energy by changing an admixture input path by pressure when an admixture is added to a metering tank for an admixture added to concrete or mortar. The present invention is "a storage tank for storing an admixture; A lifting pump pumping the admixture in the storage tank through an inlet pipe and discharging it to a water outlet pipe; A transfer pipe connected from the water outlet pipe to the metering tank and providing a movement path of the pumped admixture; An auto valve installed at the distal end of the transfer pipe on the metering tank side; A circulation pipe branched from the water outlet pipe and connected to the storage tank; And a relief valve installed on the duct of the circulation pipe and opened when the fluid pressure inside the circulation pipe exceeds a set pressure. Including, in the operation state of the lifting pump, the auto valve is closed, the set pressure is exceeded, the relief valve is opened, the transfer pipe is filled with an admixture below a predetermined pressure, and the admixture to be pumped is the circulation pipe It provides a path conversion type admixture injection device by pressure, characterized in that configured to circulate continuously through the".