Pipeline trenchless pneumatic dumping system and working method thereof

Abstract

The invention discloses a pipeline trenchless pneumatic dumping system and a working method thereof. The system comprises a high-pressure air blower, and a feeding controller, a reducing pipe, a mixer, a conveying pipe, a gas-solid separator and a solid collector which are sequentially connected along a soil treatment flow direction. The system is small in occupied area, free of environment pollution, continuous in operation, high in unearthing efficiency and high in automation degree.

Description

technical field [0001] The invention belongs to the technical field of underground pipeline construction, and in particular relates to a non-excavation pneumatic soil drainage system for pipelines and a working method thereof. Background technique [0002] At present, one of the methods commonly used in pipeline trenchless technology is the pipe jacking method, and the pipe jacking method is more commonly used according to the different jacking equipment, including soil balance method and earth pressure balance method. Among them, the mud balance method is mainly to set up a mud pool, use water to dilute the excavated clay or soil, pump it to the mud pool on the ground through a mud pump, adjust the mud ratio and then circulate it to the head of the pipe jacking machine. The soil is buried on site or transported outside, so as to achieve the purpose of soil discharge; the earth pressure balance type soil discharge method is that the soil enters the sealed soil bin and the sc...

AI Technical Summary

Problems solved by technology

The above two methods of soil removal have the following disadvantages: 1) The mud-water balance type of soil removal takes up a large amount of ground space, and the muddy water treatment equipment is huge and complex, which will generate vibration and relatively loud noise; 2) The mud-water balance type of soil removal consumes a large amount of Water, not energy-saving, and mud is easy to leak and pollute the surrounding environment; 3) The earth pressure balance type of soil excavation is low in efficiency, and the screw conveyor needs to cooperate with a pressure feeding device or manual soil transportation, and the operation is discontinuous; 4) The earth pressure balance type of soil removal is automated Low degree, high artificial intensity

[0003] Therefore, the traditional trenchless dumping method has many disadvantages such as complex equipment, small footprint, low degree of automation, and unfriendly environment.

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