Pull-type solid-liquid separation system for shield tunneling machine and separation method

A solid-liquid separation and trailer-type technology, which is applied in chemical instruments and methods, centrifugal separation water/sewage treatment, earth square drilling and mining, etc., can solve the problems of weak processing capacity and insufficient processing capacity of the processing system, and achieve significant comprehensive benefits , Reduce energy consumption, reduce the effect of conveying volume

Pending Publication Date: 2020-03-24
三川德青工程机械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent document CN110439573A tunnel mobile dredging and flushing device and method adopts a mud treatment system installed on a trolley, but the treatment capacity of this treatment system is weak, and can only be used to process mud with a very low viscosity. Low mud, insufficient handling capacity

Method used

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  • Pull-type solid-liquid separation system for shield tunneling machine and separation method
  • Pull-type solid-liquid separation system for shield tunneling machine and separation method
  • Pull-type solid-liquid separation system for shield tunneling machine and separation method

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Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 1~3 Among them, a shield machine pull-type solid-liquid separation system includes a trolley frame 19 arranged behind the shield machine, and the trolley frame 19 is provided with a solid-liquid separation system;

[0035] The structure of the solid-liquid separation system is that the underscreen of the prescreen 1 is connected with the inlet of the cyclone 2, the heavy phase outlet of the cyclone 2 is connected with the dewatering screen 3, and the underscreen of the dewatering screen 3 is connected with the slurry storage tank. 12 connections;

[0036] The slurry storage tank 12 is connected with the inlet of the cyclone 2;

[0037] The supernatant outlet of the cyclone 2 is connected with the overflow box 10, and the overflow port of the overflow box 10 is connected with the clean slurry tank 6, and the clean slurry tank 6 is provided with a second sewage pump 8 to return the clean slurry to the shield structural system;

[0038] The oversize of t...

Embodiment 2

[0052] A separation method using the above-mentioned shield machine towed solid-liquid separation system, comprising the following steps:

[0053] S1, detect the viscosity of the mud through the online viscosity sensor 21;

[0054] S2. When the mud viscosity exceeds the preset value, the first stop valve 22 is opened, the second stop valve 23 is closed, and the mud is transported to the ground mud water treatment system 26, and then sent to the excavation bin 28 after being processed by the ground mud water treatment system 26;

[0055] When the viscosity of the mud is lower than the preset value, close the first shut-off valve 22, open the second shut-off valve 23, and transport the mud to the solid-liquid separation system, and send it to the excavation bin 28 after being processed by the solid-liquid separation system; , make full use of the processing capacity of the trailer-type solid-liquid separation system.

[0056] S3. Prioritize the use of the clean slurry processed...

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Abstract

The invention provides a pull-type solid-liquid separation system of a shield tunneling machine and a separation method, the pull-type solid-liquid separation system of the shield tunneling machine comprises a bogie frame arranged behind a shield tunneling system, and the bogie frame is provided with a solid-liquid separation system; the structure of the solid-liquid separation system is as follows: the undersize of a pre-screen is connected with an inlet of a cyclone, a heavy phase outlet of the cyclone is connected with a dewatering screen, and the undersize of the dewatering screen is connected with a slurry storage tank; the slurry storage tank is connected with an inlet of the cyclone; an supernatant outlet of the cyclone is connected with an overflow box, an overflow port of the overflow box is connected with a net slurry tank, and the net slurry tank is provided with a second sewage pump so as to return net slurry to a shield system; oversize products of the pre-screen and the dewatering screen are conveyed to a slag hopper car. According to the separation method, an on-line viscosity sensor is arranged on a pipeline near a sludge discharge pump for switching of the pull-type solid-liquid separation system and a ground muddy water treatment system. The slurry solid-liquid separation treatment can be carried out at any time along with tunneling of the shield system, and the gravel discharge conveying amount is reduced.

Description

technical field [0001] The invention relates to the field of mud treatment, in particular to a shield machine towed solid-liquid separation system and a separation method. Background technique [0002] In the shield excavation of the tunnel, the mud-water balance shield needs to be equipped with a mud-water treatment system and a waste slurry treatment system on the ground to meet the recycling of the shield mud. The mud discharged from the shield tunneling system usually contains solids of different particle sizes such as sand, stone, and mud. The mud treatment process is complicated and occupies a large area. For specific hard rock formations, since the products of excavation are mainly crushed stones of different sizes, there is less fine mud, and the difficulty of solid-liquid separation is lower than that of mud, so it can be carried out on-site in the tunnel. Thereby greatly improving processing efficiency and reducing processing energy consumption. Chinese patent do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02E21D9/06
CPCC02F1/38C02F1/001E21D9/06
Inventor 李万权林茂锋甘虎肖桂华向代刚
Owner 三川德青工程机械有限公司
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