Dual-mode shield waste slag separation system and separation method thereof

Abstract

The invention discloses a dual-mode shield waste slag separation system which comprises a shield tunneling machine, a muck pool, a muddy water station and a stirring pool. The stirring pool is arranged close to the muck pool, the stirring pool is communicated with an inlet of the muddy water station through a stirring pool slurry pump and a mud discharge pipe, and a slurry outlet of the muddy water station is communicated with the shield tunneling machine and the stirring pool through a mud inlet pipe; and the muddy water station is provided with a sand grain outlet used for discharging separated particles. A separation method comprises the following steps that shield discharged muck is poured into the muck pool; the muck in the muck pond is transferred into the stirring pond through an excavator arranged beside the muck pond; the muck and slurry are stirred and diluted evenly through a stirrer in the stirring pool, and then the muck and slurry are pumped to the muddy water station through the slurry pump for separation treatment; and slurry formed through separation treatment in the muddy water station is conveyed into the shield tunneling machine, the stirring pool and the mortar stirring station, and sand particles formed through separation treatment in the muddy water station are conveyed into a screening structure to be screened. The waste muck is fully utilized, the material cost is saved, and the environmental pollution is small.

Description

technical field [0001] The invention relates to the technical field of shield tunneling waste slag separation, in particular to a dual-mode shield tunneling waste slag separation system and a separation method thereof. Background technique [0002] With the continuous acceleration of my country's economic construction and the continuous development of urban infrastructure, shield construction has become an indispensable part of underground engineering. For different formations, earth pressure balance and mud-water balance shields are widely used. On this basis, earth pressure and mud-water dual-mode shields have both modes, which further broadens the stratum adaptability of the shield method. The biggest difference between the two modes lies in the balance of the face and the method of excavation: the earth pressure balance mode balances the face by cutting the fallen muck, and then transports the muck to the muck yard through the belt conveyor-battery car-crane; mud-water b...

AI Technical Summary

Problems solved by technology

Compared with the mud-water mode, the waste slag in the dual-mode shield earth pressure mode has not been treated by the mud water station, and a large amount of waste slag is transported outside, causing environmental pollution, and also increases the transportation cost. For the recyclable soil in the muck Granules cannot be recycled; in addition, the idleness of the sludge water station also causes a waste of equipment costs

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