The daily maintenance of the concrete mixer tank
The concrete mixer truck solves the transportation problem of the commodity concrete from the preparation site to the casting site. Due to the large limitations of the concrete mixer truck, many users do not know much about daily use and maintenance, and the working environment of the concrete mixer truck is rather poor. In addition, users do not pay attention to daily maintenance, causing some unnecessary failures and economic losses. It is hoped that the following introduction of the maintenance of concrete mixer tanks will provide some guidance for the daily use and maintenance of the users of concrete mixer trucks. Improve economic efficiency has a certain degree of help.
1. As a concrete mixer truck, first of all, the concrete mixing tank should be maintained. The use of new concrete mixer trucks should be fastened in time to the tank chassis and the automobile chassis frame. In the early use process, check the environment adjoining the cement tank holder and the car chassis regularly to confirm whether it can be used normally. After each delivery of concrete and into the cleaning tank, it must be known that concrete is most easily bonded to steel.
II. Disproportionate discharge problems The symmetry problem of discharge is one of the important indicators of the performance of concrete mixers. It directly affects the construction quality. When transporting concrete, the rotating speed of the mixer should be controlled at 2~5r/min. If the slump of the concrete is large during the long interval of transport, the mixer should be moved 5~10 times before the material is discharged to make the inside of the mixer. Concrete can be fully stirred, so that the symmetry of the discharge will be greatly improved. If the concrete loses water on the way, water should be added to the site for mediation and substantial stirring, although this environment should only be regulated, because it will not guarantee the quality of the concrete. Some users do not pay attention to the control of the speed in the transportation process when using, too fast will increase the fuel consumption, too small will cause concrete segregation. Therefore, the rotational speed of the mixing drum should be strictly controlled in order to improve the quality of concrete delivery.
Third, the maximum amount of concrete can not exceed the maximum amount of the tank, because the strength of concrete grade difference is its density, high-density concrete is generally a large density, the same volume, more loaded on the car bad luck. The capacity, quality, and slump of the concrete to be transported should meet the requirements in the vehicle's operating instructions and be filled with lubricant in real time.
IV. For concrete mixers parked in the open air, the mixing drum should be rotated in a biased direction before loading to release the water in the cement tank to ensure the quality of the conveyed concrete.
5. When driving on a highway, the discharge chute falls to the lowest position and goes to the vertical part of the car body. The locking chute is used to lock the discharge chute on the frame to prevent shaking due to looseness, causing injury and confusion. Other vehicles are running. If the ladder condition is not good, there will be damage to the tank axis of the tanker. Not too glassy.
6. Before unloading, if the invention water evaporation, low slump, etc. can not meet the user's requirements, can be added to the water within the mixing drum, and then according to the feed bias to 6 ~ 10 r/min speed 30 rotation and then unloading material.
7. The mixer drum must not contain the brakes during the transport of the concrete to prevent concrete from segregating.
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