The safety hazards of fully automatic mixer trucks have long been an important aspect of concern for industry insiders, and they have also been known as "road killers", often resulting in unnecessary consequences due to non-standard driving and operation, which can be unimaginable once they occur. Therefore, it is necessary to understand and master safe driving.
Before starting the mixing truck, the operating handle of the mixing drum should be placed in the "Stop" position.
After starting the engine of the mixer truck, the mixer drum should be rotated at low speed for about 10 minutes to raise the hydraulic oil temperature to above 20 ℃ before operation.
When the mixer truck is parked in the open air, the mixing drum should be reversed before loading to discharge accumulated water and debris to ensure the quality of concrete.
4. When transporting concrete, the mixer truck should ensure that the sliding bucket is firmly placed to prevent swinging due to looseness, hurting pedestrians or affecting the normal operation of other vehicles.
When transporting mixed concrete with a fully automatic mixer truck, the rotation speed of the mixing drum is 2-10 revolutions per minute. During transportation, the rotation speed of the mixing drum should be guaranteed to be 2-3 revolutions per minute on a flat road surface. When driving on a road surface with a side slope greater than 50, or a road surface with large shaking from left to right, the mixing rotation should be stopped, and the mixing rotation should be resumed after the road conditions improve.
The time for transporting concrete by a fully automatic mixer truck cannot exceed the time specified by the mixing station. During the transportation of concrete, the mixing drum shall not be stopped for a long time to prevent segregation of the concrete. The driver should frequently observe the concrete condition, promptly report any abnormalities to the dispatching room, and apply for handling.
7. When the mixer truck is loaded with concrete, the standstill time on site shall not exceed 1 hour. If it exceeds the time limit, the person in charge of the site shall be immediately requested to provide timely treatment.
The slump of concrete transported by the mixer truck shall not be less than 8cm. From the time the concrete is poured into the tank to the time it is discharged, it must not exceed 2 hours when the temperature is high, and it must not exceed 2.5 hours when the temperature is low in rainy weather.
Before discharging concrete from the mixing truck, the mixing drum should be rotated at a rotational speed of 10-12 rpm for 1 minute before discharging.
10. After the discharge of the fully automatic mixer truck, immediately use the hose attached to the truck to drain water to clean the feed inlet, discharge hopper, discharge chute, and other parts. Drain the dirt and residual concrete that are stuck to various parts of the vehicle body, and then inject 150-200L of clean water into the mixer drum. On the way back, allow the mixer drum to rotate slowly to clean the inner wall to prevent residual slag from adhering to the drum wall and mixing blades. Drain the water before loading again.
In addition, during the driving process of the mixer truck, as the mixing container is always in a rotating state, it is necessary to slow down when turning and meeting, maintain a stable direction, and drive slowly. I hope that driver friends can improve their attention when driving, do not drive against regulations, and operate according to regulations. For more relevant content, please visit our website http://www.zkzsljbc.com Consult!