The workflow of concrete spraying machine is usually based on the following key steps:

　　1. Batching and mixing: The wet spraying concrete spraying machine first needs to mix cement, sand, gravel and water in a certain proportion in the batching system to form wet concrete. The dry spraying concrete spraying machine delivers dry aggregate and appropriate amount of water to the mixing chamber of the spraying machine, where they are mixed into concrete by high-speed rotating mixing blades.

　　2. Transport: The mixed concrete material is transported to the nozzle through a conveying system, usually a screw conveyor or a piston pump. During the conveying process, the concrete material needs to maintain a certain pressure and fluidity to ensure that it can be sprayed out smoothly.

　　3. Spraying: When the concrete material reaches the nozzle, it is accelerated and sprayed out at high speed by the action of high-pressure air or mechanical pressure to form fine granular substances. These granular substances quickly spread in the air and deposit on the construction surface to form a uniform and tight covering layer.

　　4. Control: The operator adjusts the parameters such as the flow rate, spraying distance and spraying angle of the concrete through the control system to ensure that the spraying effect meets the design requirements. In addition, some advanced concrete spraying machines are also equipped with automatic control systems to achieve more precise spraying control.

　　5. Recycling and circulation: In wet spraying concrete spraying, the excess concrete that is not sprayed out will be collected through the recycling system and recycled to reduce material waste.

　　The core of the entire workflow is to transport and spray the concrete material to the construction surface in an appropriate manner to form the required structure or covering layer. High-quality construction results can be achieved by precisely controlling the composition, fluidity and spraying parameters of the concrete.