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Contaminated soil in-situ solar thermal desorption remediation system

A technology of polluted soil and solar heat, applied in the field of contaminated soil remediation, can solve the problems of high energy consumption and poor waste gas collection effect, and achieve the effects of improving energy utilization, uniform heating, and reducing production costs

Active Publication Date: 2021-06-01
STATE GRID HEBEI ELECTRIC POWER CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an in-situ solar thermal desorption repair system for polluted soil, which aims to solve the problems of high energy consumption and poor waste gas collection effect in existing in-situ thermal desorption devices for polluted soil

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  • Contaminated soil in-situ solar thermal desorption remediation system
  • Contaminated soil in-situ solar thermal desorption remediation system
  • Contaminated soil in-situ solar thermal desorption remediation system

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Please also refer to figure 1 and figure 2 , the in-situ solar thermal desorption restoration system for contaminated soil provided by the present invention will now be described. The in-situ solar thermal desorption restoration system for contaminated soil includes: a support frame 1, a heat collecting tube 2, a heat collecting cover 3, a reflector 4, an air supply part 5, an air injection pipeline 6 and an air extraction pipeline 7; Rotatingly installed on the support frame 1, the outer side of the heat collecting tube 2 is provided with a screw 201; th...

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Abstract

The invention provides a contaminated soil in-situ solar thermal desorption remediation system, and belongs to the technical field of contaminated soil remediation, the system comprises a support frame, a heat collection pipe, a heat collection cover, a reflector, a gas supply part, a gas injection pipeline and a gas extraction pipeline; the heat collection pipe is rotationally installed on the support frame, and a spiral piece is arranged on the outer side of the heat collection pipe; the heat collection cover is installed on the support frame and arranged on the outer side of the heat collection pipe in a sleeving mode; a waste gas channel for waste gas to pass through is formed between the heat collection pipe and the heat collection cover; and the reflector is used for reflecting sunlight to the heat collection pipe. According to the contaminated soil in-situ solar thermal desorption remediation system, solar energy is used for heating gas, and energy consumption is reduced; when the waste gas generated by thermal desorption passes through a waste gas channel, the waste gas exchanges heat with the gas in the heat collection pipe, and the gas in the heat collection pipe is secondarily heated by utilizing the heat of the waste gas, so that the utilization rate of energy is improved, the energy loss is reduced, and the heating efficiency of the gas in the heat collection pipe is also improved.

Description

technical field [0001] The invention belongs to the technical field of contaminated soil restoration, and more specifically relates to an in-situ solar thermal desorption restoration system for contaminated soil. Background technique [0002] Thermal desorption technology achieves the purpose of separating and removing pollutants from soil particles by heating the polluted soil to above the boiling point of the target pollutant. During the heating process, the target pollutants are evaporated, distilled, boiled, oxidized and pyrolyzed, and the pollutants are transformed from one phase to another, and the fluidity is greatly improved. The in-situ thermal desorption technology separates the target pollutants from the soil under negative pressure conditions without changing the position of the contaminated soil, and finally eliminates them completely or concentrates them in the waste gas treatment facilities. This remediation technology can efficiently remove volatile and semi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
CPCB09C1/06
Inventor 高冰魏明磊张康崔泽坤杨鹏宫殿楼
Owner STATE GRID HEBEI ELECTRIC POWER CO LTD
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