Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fixed-depth precise thermal remediation method and device

A thermal remediation and precise technology, applied in the restoration of polluted soil and other directions, can solve the problems of high cost and high energy consumption, and achieve the effect of reducing the volume of heating soil, reducing heating energy consumption and remediation costs

Pending Publication Date: 2021-01-12
ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for fixed-depth and precise thermal repair, which can solve the problems of high energy consumption and high cost in the prior art, and reduce heating energy consumption and repair cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fixed-depth precise thermal remediation method and device
  • Fixed-depth precise thermal remediation method and device
  • Fixed-depth precise thermal remediation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention provides a fixed-depth precise thermal repair method, comprising the following steps:

[0033] Such as figure 1 As shown, multifunctional wells 10 and extraction wells 20 are arranged in the polluted area, wherein:

[0034] An electric heating device 11 is arranged in the area corresponding to the polluted formation 30 in the multifunctional well 10, and the electric heating device 11 is connected with an AC cable 12; wherein, the electric heating device 11 can be an electrode to realize resistance Heating (maximum heating temperature below 100°C), or a heating rod to achieve heat conduction heating (maximum heating temperature can be higher than 100°C), so as to meet different heating temperature requirements;

[0035] In the multifunctional well 10, the area corresponding to the clean formation 40 is provided with a drug injection pipe 13, and the surface of the drug injection pipe 13 is provided with a drug injection screen slit 14 (about 1 mm ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a fixed-depth precise thermal remediation method and device. According to the invention, a multifunctional well and an extraction well are arranged in a contaminated area; an electric heating device is arranged in an area, corresponding to a contaminated stratum, in the multifunctional well; chemical injection pipes are arranged in the area, corresponding to a clean stratum,in the multifunctional well; the chemical injection pipes are connected with a direct-current cable; oxidizing agents are injected into the underground through the chemical injection pipes, and thendirect current is turned on, so a direct-current electric field can be generated between the adjacent chemical injection pipes, and a chemical oxidation reaction zone is constructed and formed on thelower side of the cleaning area; and the electric heating device is connected with alternating current to conduct depth-fixed accurate heating on a contaminated area, a part of pollutants are collected by the extraction well after being heated and volatilized, and the other part of the pollutants move upwards to enter a chemical oxidation reaction area to be oxidized and degraded. According to themethod, only the contaminated area is accurately heated according to the stratum distribution condition of pollutants; the method and the device are particularly suitable for areas with clean shallowlayers and deep contaminated layers, the volume of heated soil can be greatly reduced, and the energy consumption of heating and remediation cost are reduced.

Description

technical field [0001] The invention relates to an in-situ heat treatment technology, in particular to an in-situ heat treatment device and method for precisely heating only polluted areas. Background technique [0002] In-situ heat treatment technology is an efficient technology for treating organically polluted sites, especially for sites with volatile organic compounds such as pesticides, chemicals, and coking, which can effectively reduce the risk of secondary pollution and control odor problems that may be caused by ex-situ remediation. [0003] In recent years, this technology has been favored in China and has been gradually promoted and applied. However, in practical engineering applications, in order to prevent the polluted steam volatilized by heating from condensing during upward migration, and causing secondary pollution to the upper clean area , the general heating method is usually all heating from bottom to top, resulting in a huge waste of energy. Contents o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06B09C1/08
CPCB09C1/062B09C1/08B09C1/085
Inventor 周广东张文陈恺李鹏杨勇申远尹立普王海东殷晓东
Owner ZHONGKE DINGSHI ENVIRONMENTAL ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com