The world's first high-speed rail dedicated dry mortar mixing plant put into use

At present, the world's first dry powder mortar mixing station for high-speed rail developed by Sany Heavy Industry Mixing Equipment Co., Ltd. is being used at the construction site of the Harbin-Dalian line and is operating in good condition.
Dry mortar is one of the raw materials for high-speed railway track slab grouting. After testing and appraisal, the plate type ballastless track that is applied with dry mortar has outstanding advantages such as good stability, strong durability, even rigidity, and low maintenance. However, due to the special nature of the high-speed rail special mortar, the precision of the mixing station is extremely high. Therefore, at present, most domestic dry powder mortar mixing stations do not have the production capacity of high-speed rail special mortar. However, the import of such dry powder mortar is expensive. In this context, SANY Heavy Industry Mixing Equipment Co., Ltd., in order to meet the demand for high-speed railway construction, began researching and manufacturing the dedicated dry powder mortar mixing station for high-speed railways from February this year.
During the research and development process, the dry powder station of the agitation equipment company overcomes multiple technical difficulties, and in particular solves the world's problems in the control of dry powder mixing measurement accuracy. The ratio of trace elements in dry mortar is the key to dry powder quality. Dry powder station design, if the use of ordinary electronic scales for the measurement of trace materials, the measurement accuracy is often not meet the requirements. After repeated research, the weight loss feeder used in the overall measurement, which not only ensures the measurement accuracy, but also greatly reduces the manual workload. In addition, in the finished dry powder discharge, there is a problem of how to conveniently transport the finished dry powder material to the construction site and avoid the occurrence of segregation of the dry powder during transportation. The mixing equipment adopts an advanced ton bag packaging process, which facilitates the transportation and storage of the finished dry powder without segregation. At the same time, the mixing station features efficient dust removal and environmental protection.
Since the establishment of the project, the high-speed railway dedicated dry mortar mixing plant has achieved two sales. According to the medium and long-term development plan for China's railways, by 2020, more than 12,000 kilometers of passenger dedicated lines will be built. The customer stated that the prospects for the dedicated mortar mixing plant for the Sany High Speed ​​Rail are very promising.