Double-spiral blades are arranged on the inner wall of the mixing drum, and the forward rotation is used for feeding and concrete mixing; Reverse rotation, driven by the spiral blade, the concrete is discharged from the outlet. The safety operation specifications of self-feeding mixer are as follows:
Double-spiral blades are set on the inner wall of the mixing drum of the unloading and self-loading mixer at the construction site, and the forward rotation is feeding and concrete mixing; Reverse rotation, driven by the spiral blade, the concrete is discharged from the outlet. The safety operation specifications of self-feeding mixer are as follows:
1. After unloading at the construction site, immediately flush the inlet hopper, outlet hopper, discharge chute and other places with the hose attached to the self-loading mixer truck to remove the sludge and concrete adhering to the vehicle body. On the way back to the mixing station, 150-200L water shall be injected into the mixing drum to clean the concrete residue bonded to the drum wall and blades.
2. At the end of each day's work, the driver shall be responsible for injecting clean water into the mixing drum and rotating it at high speed (14-18 rpm) for 5-10 minutes, and then draining the water to ensure the cleanness of the drum. When using high-pressure water to clean all parts of the mixing drum, attention should be paid to avoiding the parts such as instruments and control rods. The distance between the pressure water nozzle and the body paint surface shall not be less than 40 cm.
3. When removing the dirt and residual concrete slag inside and outside the mixing drum, as well as when the mechanical maintenance personnel enter the drum for maintenance and welding repair operations, it is necessary to shut down the engine of the self-feeding mixing truck to completely stop the mixing drum. During the period when the machine maintenance personnel enter the mixing drum for work, they should ensure that the mixing drum is well ventilated, fresh air, free of natural gas and harmful dust, and sufficient oxygen supply. When using electric tools in the cylinder, the operator should have good insulation protection.
4. When working, do not put your hands into the rotating mixing drum. Do not put your hands into the connection part of the main discharge chute and the extended discharge chute automatically. How can the staff operate the self-feeding mixing truck to avoid accidents.