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Pressurization thermosensitive vaporization phase change consolidation method and thermal desensitization intermittent evaporator therefor

An intermittent, evaporator technology, applied in vertical tube evaporators, evaporation, steam generation, etc., can solve the problems of low heating efficiency and the inability to realize intermittent heating in the structure of the heating device, so as to improve the bearing capacity of the foundation and accelerate the phase change Consolidation, the effect of reducing investment costs

Active Publication Date: 2021-01-29
JIANGSU XINTAI GEOTECHNICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution also adopts the vacuum preloading method and installs a foundation heating device for heating, but the structure of the heating device cannot realize intermittent heating, and it is only simple electric heating, and the heating efficiency is low, which needs further improvement

Method used

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  • Pressurization thermosensitive vaporization phase change consolidation method and thermal desensitization intermittent evaporator therefor
  • Pressurization thermosensitive vaporization phase change consolidation method and thermal desensitization intermittent evaporator therefor
  • Pressurization thermosensitive vaporization phase change consolidation method and thermal desensitization intermittent evaporator therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: A pressurized heat-sensitive gasification consolidation method, combined with a method of pressurized vacuum preloading consolidation treatment of soft ground (ZL200810156787.5) and drainage boards, filter cloths and drainage board cores for sludge consolidation ( ZL200910181702.3), including the following steps:

[0044] S1. Place the thermal desensitization batch evaporator in the bottom area of ​​the vacuum preloading drainage plate in the sludge reinforcement area, turn on the heating, and the thermal desensitization batch evaporator sprays high-pressure steam during heating;

[0045] S2. Heating to 200°C, maintaining for 6 minutes, then stopping for 12 minutes,

[0046] Vacuum pressure 90kPa, repeat the above process;

[0047] S3. When the liquid limit index of the surrounding reinforced soil is less than 0.98, stop heating, and the gasification and consolidation is completed.

[0048] With reference to embodiment 1, embodiment 2-5 is as shown in the t...

Embodiment 6

[0050] Embodiment 6: as figure 1 As shown, a thermal desensitization intermittent evaporator for pressurized heat-sensitive gasification consolidation method includes a shell 1, two heating bodies 2 placed in the shell 1, and the heating body 2 includes an electric heating body 2.1 and Connect the wire 2.2 of the electric heating body 2.1, the wire 2.2 is led out of the shell 1 to connect to the power supply, the electric heating body 2.1 includes the heating tube base 2.1.1 and the metal joint 2.1.2 installed on the top of the heating tube base 2.1.1, the metal joint 2.1. 2 Connecting wire 2.2, heating tube base 2.1.1 includes upper and lower bases 2.1.1a, 2.1.1b, upper base 2.1.1a is graphite, lower base 2.1.1b is quartz, upper base 2.1.1a and metal connector 2.1. 1 connection, the entire heating tube base 2.1.1 is formed by pressing and sintering quartz and graphite abrasives, the metal joint 2.1.2 of the heating tube base 2.1.1 is wrapped with high-temperature silica gel 3...

Embodiment 7

[0051] Embodiment 7: as figure 2 As shown, referring to Example 6, the housing 1 is divided into upper and lower parts 1.1, 1.2, with a partition 7 spaced in the middle, and a plug hole 7.1 is opened on the partition 7, and the heating tube base 2.1.1 is plugged into the plug The connecting hole 7.1 is fixed inside, and the metal joint 2.1.2 is located in the upper part of the housing 1.1. Effectively prevent the base body of the heating tube from breaking due to displacement in the shell, because the refractory material is relatively rigid and easy to break.

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Abstract

The invention discloses a pressurization thermosensitive vaporization consolidation method. The method comprises the following steps that S1, a thermal desensitization intermittent evaporator is placed in a bottom area of a vacuum preloading drainage plate in a sludge consolidation area, heating is started, and during heating, the thermal desensitization intermittent evaporator jets high-pressuresteam; S2, heating is performed to 100-400 DEG C, the temperature is maintained for 3-120 minutes, heating is stopped for 6-240 minutes, and when the vacuumizing pressure is more than or equal to 80 kPa, the process is repeated; and S3, when the liquid limit index of a peripheral consolidated soil body is smaller than 0.98, heating is stopped, so that gasification and consolidation are completed.Intermittent heating and high-pressure steam jet can be achieved, the activity of water molecules is improved, the water molecules quickly flow to a low-temperature area, and the solidification efficiency is improved.

Description

technical field [0001] The invention relates to the field of soft soil foundation treatment of geotechnical engineering, in particular to a vacuum preloading drainage process. Background technique [0002] In the field of geotechnical and environmental engineering, for large-area soft soil foundation reinforcement treatment and environmental protection in-situ restoration projects, the problems of tight construction schedule and limited construction technology are often encountered. There are many construction techniques in the prior art, but there are generally phenomena such as low bearing capacity, high construction cost, long construction period, and difficult control of construction quality. Therefore, when it is necessary to shorten the construction period and significantly reduce the construction cost, there are many technical difficulties that are difficult to overcome in the above-mentioned conventional construction method. [0003] Chinese Patent Publication No. C...

Claims

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Application Information

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IPC IPC(8): E02D3/11F22B1/28
CPCE02D3/11F22B1/28B01D1/0017B01D1/06E02D2250/0053
Inventor 金亚伟王军程瑾俞演名金亚军钱明郑明明王敏超王小东蒋君南金亚明
Owner JIANGSU XINTAI GEOTECHNICAL TECH CO LTD
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