Powder accelerator addition device

It is the main construction machinery for shotcrete, which directly sprays the concrete mixture onto the sprayed surface to provide support for the surrounding rock. Concrete changes from dry material at the inlet to wet material at the outlet, reducing dust and increasing the cohesiveness of sprayed concrete; To ensure even wetting of the concrete mixture while avoiding clumping and pulse generation, which may affect the continuity of spraying. At the same time, due to the dry powder feeding, the early hydration of cement is slowed down, the reaction efficiency between concrete and quick setting agent is improved, and the quality of sprayed concrete is higher, greatly reducing the dust near the machine.