METHOD AND DEVICE FOR INSERTING LIQUID PHASE ACCELERATOR TO INSTALL WET SHOTCRETE

摘要

PURPOSE: A device and a method for inputting a liquid phase accelerator are provided to prevent the abrasion of a connection pipe as a hose where concrete is transferred. CONSTITUTION: An accelerator is input in a mixing chamber(10) with compressed air in order to effectively mix the accelerator. Herein, the compressed air is supplied with the minimum pressure to mix while spray pressure through a nozzle is provided by the compressed air flowed in a contact pipe(17) formed before nozzle. Accordingly, in mixing the accelerator, the liquid phase accelerator is input in a first input pipe(12), and the compressed air is input in a second input pipe(13). In addition, it is possible to input the previously mixed accelerator and compressed air in the first and second input pipes.