Shield construction muck treatment system and method

Abstract

The invention relates to the technical field of shield construction muck treatment, in particular to a shield construction muck treatment system and method. The muck generated by shield construction is crushed and stirred by a crushing and stirring device and then enters a primary-stage double-layer vibrating screen, oversize products are discharged out of the system, undersize products enter a sieve cone tank, the sieve cone tank is connected with a swirler through a pump, an intermediate tank is connected to an overflow port of the swirler, a discharge port of the intermediate tank is connected to an overflow tank through a pipeline, the slurry in the overflow tank is pumped to a flocculation tower through a pump, the flocculation tower is connected with an automatic dosing device, a flocculation medicament is pumped into the flocculation tower, the slurry in the flocculation tower is pumped to a filter press through a pump, drying mud cake treatment is carried out through the filterpress, the treated clear water flows into a clear water tank for reutilization, the dried mud cake is discharged out of the system, so that classified solid-liquid separation of different particle size components and water in the shield muck is realized, reutilization of inorganic raw materials and water resources of the shield muck is formed, and huge economic benefits are generated while the social resources are saved.

Description

technical field

[0001] The invention relates to the technical field of shield construction dregs treatment, in particular to a shield construction dregs treatment system and treatment method. Background technique

[0002] The shield machine is widely used in urban subway construction because of its safety, high construction efficiency, low cost and wide range of applicable strata. The excreted muck contains a lot of water, even in a semi-fluid state. At present, the treatment method of the shield muck is to directly transport it to the storage yard. Due to the high water content of the shield muck, the transportation efficiency of this method is low, and spills are prone to pollute the road during the transportation. In addition, a large amount of high-water-content dregs piled up in subway construction will waste a lot of land resources and occupy large-scale cultivated land. The accumulation of water-containing dregs is unstable, prone to landslides, landslides and other ...

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