During the transportation and spraying process of the cement plaster spraying machine, the cement mortar spraying machine may block the pipe due to various reasons. So how much do you know about the cause of the blockage of the cement mortar spraying machine? Pipe plugging is basically caused by the following reasons: mortar formulation problems, mortar segregation and too long residence time in the pipeline, etc.
1. Blocking phenomenon of mortar formulation problem of cement plaster spraying machine
Plugging of mortar formulation problems generally occurs in the early stage of use. Due to the lack of certain fluidity of the mortar, the friction of the mortar flowing in the slurry pipe is too large and the pipe is blocked. The blocking of this phenomenon generally occurs when the batch of mortar is used for the first time, and the solution can adjust the type or amount of admixture. At the same time, by adjusting the cementing material, it can also obtain better fluidity. After that, an experimental demonstration should be carried out. In addition to the mechanical spraying performance, the product quality index requirements and the control of the mortar cost must also be met.
2. Pipe blocking caused by segregation of cement plaster spraying machine
The blockage caused by the mortar segregation phenomenon of the cement plaster spraying machine generally occurs in the middle of the spraying construction. The main reason is that the mortar at the bottom of the mortar bulk tank is segregated, which causes the mortar material properties to change. The preventive measure is to control the storage capacity of the bulk tank. When the storage capacity of the mortar at the bottom of the bulk tank is too small, it should be stopped. For the mortar that has been isolated, try to increase the consistency of the mortar and spray the bottom layer.
3. The mortar of the cement plaster spraying machine stays in the pipeline for too long to cause pipe blockage.
Cement plaster spraying machine mortar stays in the pipeline for too long to cause pipe blockage. The main reason is that the mortar's static time is too long to cause mortar initial settling, which leads to reduced fluidity and pipe blockage. The main control method is to reduce the downtime as much as possible. If cement plaster spraying machine is necessary to shut down for a long time, the remaining mortar in the equipment should be used up first, and then the shutdown and pipeline cleaning should be performed.
