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Tunnel Boring Machines (TBMs) are widely used in the construction industry for excavating tunnels for various infrastructure projects. One crucial aspect of TBM operation is the management of the excavated material, which often includes a mixture of soil, rock, and drilling fluids. To effectively separate and remove these solids from the drilling fluid, a TBM Desanding Plant is essential.
Manage construction mud with KES Separation's shield tunneling desanding plant, also known
On April 27, 2020, KOSUN, a leading manufacturer of drilling mud equipment, introduced its Tunneling Slurry Separation Plant specifically designed for TBMs in Mexico. This innovative plant utilizes a combination of shale shakers, desanders, desilters, and decanter centrifuges to efficiently process and separate the excavated solids from the bentonite suspension used in the drilling process.
The Importance of TBM Desanding
During TBM excavation, the drilling fluid, also known as bentonite slurry, plays a crucial role in stabilizing the tunnel face, carrying excavated material to the surface, and providing lubrication for the TBM cutting tools. However, as the drilling fluid circulates through the excavation process, it becomes contaminated with solids such as rock fragments, soil particles, and other debris.
If these solids are not effectively removed from the drilling fluid, several issues can arise. Firstly, the presence of solids can lead to increased wear and tear on TBM components, reducing their operational efficiency and lifespan. Secondly, the contaminated drilling fluid can hinder the overall performance of the TBM, causing delays in the excavation process. Therefore, a TBM Desanding Plant is essential to ensure the smooth operation of the tunneling project.
The Components of a TBM Desanding Plant
A typical TBM Desanding Plant consists of several key components that work together to separate and remove solids from the drilling fluid. These components include:
1. Shale Shakers: Shale shakers are the first line of defense in the desanding process. They use vibrating screens to remove large solids from the drilling fluid before it passes on to the next stage of separation.
2. Desanders: Desanders are hydrocyclone units that further separate solids based on their size and density. They are effective in removing finer particles that may have passed through the shale shakers.
3. Desilters: Desilters are similar to desanders but are designed to remove even smaller particles from the drilling fluid. They provide a final stage of separation before the fluid is considered clean.
4. Decanter Centrifuges: Decanter centrifuges are high-speed rotating machines that use centrifugal force to separate solids from liquids. They are capable of handling a wide range of particle sizes and are essential for achieving a high level of cleanliness in the drilling fluid.
The Benefits of Using a TBM Desanding Plant
There are several benefits to using a TBM Desanding Plant in tunneling projects, including:
1. Improved TBM Performance: By removing solids from the drilling fluid, a desanding plant helps maintain the integrity of TBM components, reducing wear and tear and extending their operational lifespan.
2. Increased Efficiency: Clean drilling fluid results in smoother operation of the TBM, reducing the risk of downtime and delays in the excavation process.
3. Environmental Protection: Proper management of excavated solids helps prevent contamination of the surrounding environment, ensuring compliance with environmental regulations.
4. Cost Savings: By optimizing the performance of the TBM and reducing maintenance requirements, a desanding plant can lead to cost savings over the course of a tunneling project.
KES Separation Desanding plant can control the mud performance, increase drilling efficiency, …
Decanter centrifuges are characterized by their continuous operation, the presence of a scroll (a helical screw that rotates at a slightly slower speed than the bowl and conveys the solids towards the outer wall of the bowl), and a solids discharge port located on the outer wall of the bowl. They are used in a wide range of industries and .
TBM Desanding Plant Mexico|tbm desanding