With the development of science and technology, the shield construction method is increasingly applied to the construction of various engineering fields in our country, especially the construction of super large diameter shield tunnels. Due to my excellent skills, the current shield mud cleaning technology can separate the dirty cement slurry, but it is easy to foam during the mud mud cleaning process. Nanhui's customized shield mud cleaning defoamer can effectively control foam, eliminate foam and improve engineering efficiency.
(Picture: Shield machine sediment cleaning sewage site)
Why is it easy to produce foam when cleaning mud and sand?
Shield mud cleaning generally goes through 3 stages
Feeding stage: transport the sand that needs to be separated to the feeding port and then to the next stage.
Sediment cleaning stage: the circulating water washes and filters the sediment, and the separated clean sand is transported to the finished product warehouse. During the cleaning process, due to the addition of additives during the construction process, the silt is prone to foam in a large amount during cleaning, and the precipitated muddy water will have a large amount of foam, and the precipitated muddy water will enter the mud-water separation stage.
Mud-water separation stage: Separate the muddy-water sedimented in the sediment cleaning stage. During the separation process, flocculants, separating agents, etc. will be added for pressure-drying treatment. Foam will affect the separation of mud and water, and the separated water is transported to the mud and sand cleaning stage for use. Therefore, it is necessary to defoam the mud-water separation foam.
The problem of foam in the mud cleaning of subway tunnel shields is caused by various reasons such as mixing in the process of mud separation and cleaning. Foam will affect the progress of sand washing and the cleaning process. Shield mud sand cleaning foam can solve the foam problem by adding targeted water treatment defoamers.
(Picture: Shield machine mud cleaning foam)
Nanhui Shield Silt Cleaning Defoamer Defoaming and defoaming fast
Nanhui defoamer manufacturer develops a shield mud cleaning defoamer for shield engineering. The amount of addition is small and the defoaming effect is very good. Nanhui can provide one-to-one technical guidance. Defoams against the bubbling environment. It has the following defoaming characteristics:
Factory direct sales, high cost performance;
Highly concentrated formula, one-to-one technical support, and improve the solution of foam elimination;
Nanhui provides free defoamer samples;
The defoamer has good comprehensive performance, less dosage and low cost
It will not affect the shield separation process, will not affect the sediment separation, and will not chemically react with the additives added in the process;
Professional engineers aim at research and development, and the effect is strong. Nanhui defoamer engineers can configure defoamers for the foaming environment of the shield separation system, and the effect is good.
(Picture: Nanhui Sand Cleaning Defoamer)
The sand cleaning defoamer sold by Nanhui defoamer manufacturer has high foam breaking rate and ideal effect. It can be customized according to the customer's application environment and the performance requirements of the defoamer, and the formula can be adjusted to make the defoamer suitable for various environments Defoaming.
The source manufacturer of Nanhui defoamer can solve various industrial foam problems in a targeted manner. If you encounter bubble problems in related industries, please call Nanhui Technical Specialist, Ms. Yoyo 0086 134 2860 1010.
