Integrated slurry-water separation system of shield tunneling machine

A mud-water separation and shield machine technology, applied in filtration separation, separation methods, water/sludge/sewage treatment, etc., can solve the difficulty of meeting the requirements of urban sewage discharge standards, waste of resources, shield cost, endangering the ecological environment, etc. question

Pending Publication Date: 2021-02-23
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1
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  • Application Information

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Problems solved by technology

A large amount of waste mud will be produced along with shield construction, if not properly disposed of, it will not only cause waste of resources and increase of shield cost, but also endanger the surrounding ecological environment
[0003] The traditional mud-water shield mud-water separation system requires a large site, which is difficult to meet the requirements of urban sewage discharge standards

Method used

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  • Integrated slurry-water separation system of shield tunneling machine
  • Integrated slurry-water separation system of shield tunneling machine
  • Integrated slurry-water separation system of shield tunneling machine

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[0032] like Figure 1 to Figure 3 As shown, the vibrating screen system is the first primary separation, mainly for pretreatment of muddy water to dehydrate and remove coarse particles such as agglomerates and blocks. The separation of coarse particles adopts three-layer vibrating sieve. Particles with a particle size of less than 10mm pass through the first layer of vibrating sieve and enter the second layer. Particles with a particle size of less than 6mm enter the third layer of vibrating sieve after being vibrated. Pool, vibrating sieve all screened materials are discharged to the soil pile site.

[0033] The main function of the cyclone separation system is to refine the medium and fine particle slurry separated by the vibrating screen again, gradually reduce the particle size of the slurry, and use two-stage cyclone for processing, which are desanding cyclone and cyclone respectively. The desilter cyclone adopts a static cyclone, which is mainly composed of a cylinder a...

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Abstract

The invention discloses an integrated slurry-water separation system of a shield tunneling machine. The integrated slurry-water separation system comprises a vibrating screen system, a desanding cyclone, a desilting cyclone, a centrifugal separation system and a slurry adjusting system, and coarse particles are separated by adopting a three-layer vibrating screen. The cyclone separation system adopts two stages of cyclones for treatment, namely a cyclone desander and a desilter. The centrifugal separation system accelerates the settling velocity of solid-phase particles to realize solid-liquidseparation. The slurry conveying pump conveys the slurry adjusted by the slurry adjusting system to the shield tunneling machine. A treatment process flow of screening, desanding, desilting and centrifuging is adopted, soil cut by a shield can be effectively treated, slurry can be recycled, the mode of a slurry treatment system is mainly an integrated modular product, sealing treatment is carriedout, and waste water reaches the discharge standard.

Description

technical field [0001] The invention relates to a subway tunnel construction technology, in particular to an integrated shield machine mud-water separation system. Background technique [0002] The shield method is one of the main construction methods of subway tunnel engineering. The mud-water balance shield has been widely used in the world due to its strong adaptability to different soil layers, continuous soil discharge, fast construction progress, and easy automation management. application. A large amount of waste mud will be produced along with the shield tunneling construction. If it is not properly disposed of, it will not only cause waste of resources and increase the cost of shield construction, but also endanger the surrounding ecological environment. [0003] The traditional mud-water shield mud-water separation system requires a large site, which is difficult to meet the requirements of urban sewage discharge standards. Contents of the invention [0004] Ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/127B01D36/04
CPCC02F11/00C02F11/127B01D36/045
Inventor 周翠红曾婉琳冯利华张洪军吴玉鹏周富强
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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