The air-driven shotcrete machine relies entirely on wind as the power to work. The air motor shotcrete machine is fully suitable for its construction requirements in the special construction environment under the mine. The all-air-driven shotcrete machine is an innovation of the underground concrete spraying operation, but the current mine roadway support is still the electric mine shotcrete machine as the main construction equipment. Let's take a look at the comparative advantages of all-air-driven shotcrete machine and ordinary shotcrete machine:
First of all, the full-air jet shotcrete machine adopts a number of patented technologies, a new power system, material mixing and stirring, continuous feeding of the rotor body, and material output are driven by compressed air to realize the unity of power. The feeder and rotor feed are driven by a pneumatic motor, and a throttle valve is set to adjust the motor speed to achieve an adjustable feed volume. The air inlet of the discharging pipe is equipped with a throttle valve to adjust the air volume of the discharging pipe, so that the discharging is stable and uniform without fluctuations, avoiding pipe blockage and pulse, and reducing dust and rebound rate. The electric mine shotcrete machine (concrete shotcrete machine) uses a special vibrating hopper to make the wet concrete mixture smoothly enter the rotor cavity; the new metering pump can accurately and evenly add the liquid accelerator; patented The discharge elbow makes the material flow uniform, continuous, stable, and has small pulses, and eliminates the sticking of wet concrete and reduces the pressure of the system.
The advantages of the air-driven shotcrete machine: do not use power, directly use compressed air as the power source, which greatly saves the preparation time of spraying; the air intake system adopts a quick connection device, which is more convenient to operate; The port has been enlarged and improved to ensure the continuity of the concrete; small size, reasonable structure, and convenient to move; the air path system of the all-air-driven shotcrete machine is equipped with an oil mist lubricator and a compressed air filter to make the performance of the whole machine stable , Easy to monitor, safe and reliable. The whole machine has good sealing performance, reasonable fastening structure of friction joint surface, balanced and adjustable force. It not only effectively prevents air leakage and dust removal, reduces dust around the machine, improves the working environment, but also avoids excessive pressure on the joint surface, which is conducive to prolonging the service life of wearing parts.
