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A dual-mode screening cyclone method for shield construction dregs treatment

A processing mode, dual mode technology, applied in solid separation and other directions, can solve problems such as lack

Active Publication Date: 2022-06-17
CHINA RAILWEY ENG SERVICE CO LTD
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Problems solved by technology

[0004] Aiming at the lack of methods in the prior art for treating shield tunneling dregs with different quantities and different treatment effects, the present invention provides a dual-mode screening cyclone system for shield tunneling construction dregs treatment, the purpose of which is to: provide The two modes deal with different amounts of shield muck and produce different treatment effects

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  • A dual-mode screening cyclone method for shield construction dregs treatment
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Embodiment Construction

[0038] All features disclosed in this specification, or all disclosed steps in a method or process, may be combined in any way except mutually exclusive features and / or steps.

[0039] Combine below figure 1 , figure 2 The present invention will be described in detail.

[0040] A dual-mode screening and swirl method for shield construction slag treatment. Different treatment modes are selected according to the amount of slag treatment. The treatment modes include a mode 1 and a mode 2, and the mode 1 includes the following step:

[0041] Step 1: Divide the shield slag to be treated into two primary screening devices, and screen out the coarse sand to obtain mud;

[0042] Step 2: cyclone separation is performed on the mud obtained in step 1 to obtain overflow liquid and cyclone bottom liquid;

[0043] Step 3: perform flocculation, sedimentation and pressure filtration respectively on the overflow liquid obtained in step 2, and carry out sand washing treatment on the cyclon...

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Abstract

The invention discloses a double-mode screening swirling method for shield construction dregs treatment. Mode 1 or mode 2 is selected according to the processing capacity of shield muck. If more dregs need to be processed, the dregs If the processing rate of soil is not less than 360m3 / h, you need to choose mode 1; otherwise, choose mode 2. In mode 1, two primary screening devices are arranged in parallel to process the muck, and the swirling bottom liquid obtained by swirling Direct sand washing treatment can well solve the need when the amount of muck in the shield machine is large and the effect of muck treatment is not high. In mode 2, a primary screening and a secondary screening are configured in series to carry out the processing of the muck. treatment, and carry out secondary screening of the swirling bottom liquid obtained by the swirling flow to obtain fine sand, and finally wash the fine sand to solve the need when the amount of shield muck is small and the treatment effect is high. .

Description

technical field [0001] The invention belongs to the technical field of shield tunnel slag treatment, in particular to a dual-mode screening and cyclone method for shield tunnel slag treatment. Background technique [0002] Shield machines are widely used in urban subway construction due to factors such as safety, high construction efficiency, low cost and wide application of strata. The slag contained in the slag contains a lot of water, and it is even in a semi-fluid state. At present, the slag produced by shield construction is mostly handled by direct outbound transportation. A lot of available resources in the soil are wasted, so it is necessary to deal with the shield construction dregs. [0003] Because the stratum traversed by the shield machine is often complex, the nature of the shield muck produced by the excavation is unstable. The treatment method recycles and utilizes the shield muck. SUMMARY OF THE INVENTION [0004] Aiming at the problem of the lack of me...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00
CPCB03B9/00
Inventor 刁鹏段文军邓涛刘伟苏金龙朱礼星刘光鑫韩啸
Owner CHINA RAILWEY ENG SERVICE CO LTD
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