经过实践和分(fēn)析，我们认為(wèi)搅拌一體(tǐ)机粘罐原因可(kě)以分(fēn)為(wèi)两大类：即设计不合理(lǐ)和使用(yòng)不当，下面我们先从搅拌一體(tǐ)机卸料残余率和叶片设计不合理(lǐ)方面来讲解一番。

Through practice and analysis, we believe that the causes of tank sticking of the mixer can be divided into two categories: unreasonable design and improper use. Let's explain the discharge residual rate and unreasonable blade design of the mixer first.

From the perspective of the internal structure of the mixing drum, the mixing drum of the mixing truck is driven by the rotating drum to produce spiral movement by two spiral blades, so that the concrete can obtain a composite movement of both "tangential" and "axial", so that the mixing drum has the functions of mixing and unloading. Therefore, the factors related to the formation of this spiral movement, such as the curve parameters of the spiral blades, The geometric shape and size of the mixing drum have an important influence on the discharge residual rate of the mixer truck.

而过大的卸料残余率意味着搅拌車(chē)在卸料结束后在搅拌罐里会有(yǒu)更多(duō)的余料，因而更有(yǒu)可(kě)能(néng)因日积月累在搅拌罐中粘料。目前大多(duō)数厂家采用(yòng)的是等角对数螺旋線(xiàn)叶片，在卸料残余率上还有(yǒu)很(hěn)大的改进空间。

However, excessive discharge residual rate means that the mixer truck will have more residual materials in the mixing tank after discharge, which is more likely to stick materials in the mixing tank due to accumulation over time. At present, most manufacturers use equiangular logarithmic spiral blades, and there is still much room for improvement in the discharge residual rate.

此外还有(yǒu)一种情况便是，工地在墙柱等施工中，会用(yòng)塔吊吊斗車(chē)的方法进行浇捣，由于塔吊的料本来塌落度就比泵送的低，更由于施工时间長(cháng)，卸一車(chē)混凝土通常要2～4h，有(yǒu)些驾驶员為(wèi)了省油而停止搅拌筒的正常转动，这种情况下，特别容易造成粘罐，有(yǒu)时9方車(chē)一次粘罐就达一整天，这种情况在夏天更严重。

In addition, in the construction of wall and column, the construction site will use the tower crane bucket truck for pouring and tamping. Because the original slump of the tower crane materials is lower than that of the pump, and because the construction time is long, it usually takes 2-4 hours to unload a truck of concrete. Some drivers stop the normal rotation of the mixing drum to save fuel. In this case, it is particularly easy to cause tank sticking. Sometimes, the 9-way truck can stick to the tank for a whole day at a time, This situation is more serious in summer.

夏季在南方地區(qū)白天中午前后，环境温度经常超过30℃，在这种情况下运输混凝土，将会由于混凝土坍落度损失快以及罐體(tǐ)周围温度相对中心更高，因而混凝土更容易粘罐。搅拌一體(tǐ)机的罐體(tǐ)运行是通过液压的传动来运作的，液压油長(cháng)时间在管路中以一定的速度流动，与管壁摩擦，再加上管路中各种阀件的阻力和油泵的做功，液压油被压缩产生热量，油温上升。

In summer, around noon in the day in the south, the ambient temperature often exceeds 30 ℃. When transporting concrete in this case, the concrete will be easier to stick to the tank because of the rapid loss of concrete slump and the higher temperature around the tank relative to the center. The tank of the agitator is operated by hydraulic transmission. The hydraulic oil flows in the pipeline at a certain speed for a long time and rubs against the pipe wall. In addition, the resistance of various valves in the pipeline and the work done by the oil pump cause the hydraulic oil to be compressed to generate heat and the oil temperature to rise.

总之混凝土在搅拌車(chē)拌筒中的工作是一个非常复杂的过程，搅拌一體(tǐ)机粘罐现象的产生原因也是各种各样的。以上就是為(wèi)您讲解的内容了，对此您有(yǒu)什么问题可(kě)随时来我们网站http://www.zkhntjbj.com咨询！