GNTBM-500B Slurry Separation Plant for Middle East TBM Project

A slurry plant's performance is vital for the whole project. In slurry shield TBM construction, the stability of slurry performance directly determines tunneling quality and construction safety. The slurry undertakes multiple core functions including excavation face pressure support, cutter head cooling, and excavated soil transportation. Impurities such as gravel, sand, and fine silt mixed in the circulating slurry will cause slurry performance degradation, blockage of pipeline systems, wear of TBM cutter heads and pumps, and even induce excavation face collapse and ground settlement risks. Therefore, efficient slurry separation and purification is the key to maintaining continuous and stable TBM operation, reducing equipment loss, and controlling construction risks.

GN Separation's technical upgrading of the slurry separation plant has brought comprehensive value improvement to TBM engineering construction. In terms of construction efficiency, stable high-purity circulating slurry maintains constant excavation face pressure, effectively improving TBM tunneling speed and reducing equipment downtime caused by slurry deterioration and pipeline blockage. In terms of equipment protection, the graded separation mechanism thoroughly removes abrasive solid particles in the slurry, significantly reducing the wear and failure rate of TBM cutter heads, slurry pumps and conveying pipelines, extending the service life of core equipment, and greatly reducing project operation and maintenance costs. In terms of economic benefits, the high-efficiency slurry cyclic utilization rate reduces the consumption of bentonite, water and other raw materials, while the separated solid waste is dewatered into low-moisture filter cakes, which are convenient for centralized transportation and harmless disposal, cutting the overall construction cost of the project.

In terms of environmental protection performance, which is highly valued in modern engineering construction, the closed-loop operation design of the slurry separation plant completely avoids slurry leakage and construction water pollution. The full-process sealed treatment mode eliminates dust and slurry splashing pollution on the construction site, and the recycled slurry replaces fresh water for repeated use, realizing maximum resource recycling. The standardized solid waste dewatering treatment solves the problem of random discharge and stacking of construction waste mud, effectively reducing the impact of tunnel construction on surrounding soil and water environment, and fully meeting the strict green construction assessment standards of domestic and overseas key projects.

Industry experts stated that with the continuous development of underground engineering towards large buried depth, long distance and complex geology, intelligent, efficient and green slurry separation technology will become a core breakthrough direction for TBM construction optimization. The modular, intelligent and multi-adaptive slurry separation plant will further promote the standardized and refined development of tunnel construction technology, providing solid technical and equipment support for the high-quality construction of global underground infrastructure.