Portable dry mix shotcrete machine adopts dry spraying technology, with high construction efficiency. The spraying concrete volume per hour can be adjusted from 3 to 9 cubic meters. It is easy to operate and widely used in various working environments. The use of concrete spraying machine for spraying construction is simple and convenient; no formwork is required, saving a lot of formwork materials; eliminating the process of supporting formwork, pouring and demolding, speeding up the construction progress, high concrete density, good strength and impermeability, and saving costs. It is widely used in railway and highway tunnels, water conservancy and hydropower, urban subways, building foundation pits, road slopes and underground engineering.

Portable dry mix shotcrete machine main structure:

The shotcrete machine mainly consists of a rotor concrete sprayer, a cement slurry mixer, an extrusion cement slurry pump, an electrical control box, a discharge elbow, a gas system, a mixing device, a spray gun, a frame and other parts.

(1) Sprayer: It is mainly composed of a hopper, a mixing device, a discharge elbow, a gas system, a rotor, a reducer and other parts. The motor drives the rotor to rotate through the reducer. The mixed material is loaded into the rotor, and the air pipeline in the air system sends it out of the discharge elbow. Then, the assistant of the auxiliary air inlet pipeline in the air system sprays the mixed material through the feed pipe and the nozzle to the sprayed surface.

(2) Cement slurry mixer: It is mainly composed of a motor, a gearbox, a water tank, an upper mixing barrel, a lower mixing barrel, a water tank control valve, and a discharge valve of the upper mixing barrel. This cement slurry mixer is a double-barrel type. The upper barrel is first mixed with a barrel and then put into the lower barrel as a preparation. After the upper barrel is mixed with another barrel, the mud pump is started, so that it can work continuously.

(3) Extrusion cement slurry pump: It is mainly composed of a motor, a gearbox, a pump housing, an eccentric wheel frame, a rubber hose, a pipe joint, etc. This pump is a positive displacement pump that does not require water injection and has strong self-priming ability.

(4) Mixing device: This mixing device is composed of left and right spiral mixing assemblies and a mud input device. The conveying pipe and the spray gun are connected to the spiral mixing assembly.

Portable dry-mix shotcrete machines are capable of efficient concrete spraying operations. The main features of this machine include:

Portability: lightweight design, easy to transport and move in narrow or complex terrain.

Dry-mix technology: using dry-mix materials, adding water at the nozzle so that the mixture is mixed instantly before contacting the spraying surface.

High efficiency: capable of spraying a large amount of concrete in a short time, improving work efficiency.

Strong adaptability: suitable for a variety of construction environments, including vertical and top surface spraying work.

Easy to operate: easy to operate and maintain, reducing labor costs.

These features make portable dry-mix shotcrete machines an ideal choice for underground construction, repair projects, and disaster relief. If you need to know more about the specific parameters or application examples of this equipment, please let me know more information needs.
We are a professional manufacturer and supplier of wet and dry mix shotcrete machines with more than 20 years of manufacturing experience. We can provide customers with a variety of customized solutionsEmail address: info@gaodetec.com

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