A thermal desorption remediation system for contaminated soil with waste heat reuse

A technology for remediation system and polluted soil, which is applied in the restoration of polluted soil, etc. It can solve the problems of reducing the cost of the remediation process, high cost of the remediation process, and loss of waste heat from exhaust gas, so as to reduce the cost of the remediation process and improve the utilization rate of waste heat. exchange full effect

Active Publication Date: 2017-10-31
INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] This application provides a thermal desorption repair system for contaminated soil with waste heat reuse, which solves or partially solves the technology in the prior art that waste heat is lost in the process of thermal desorption repair, tail gas post-treatment is difficult, and the repair process is costly. Problems, realize the reuse of exhaust heat, reduce the difficulty of exhaust gas post-treatment, and reduce the technical effect of the repair process cost

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  • A thermal desorption remediation system for contaminated soil with waste heat reuse
  • A thermal desorption remediation system for contaminated soil with waste heat reuse

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Embodiment Construction

[0045] The present invention is described in further detail below in conjunction with accompanying drawing:

[0046] The embodiment of the present application provides a thermal desorption repair system for contaminated soil with waste heat reuse, which solves or partially solves the loss of waste heat in the exhaust gas during the thermal desorption repair process in the prior art, the difficulty of post-treatment of the tail gas, and the high cost of the repair process By adding surface heat exchange devices to conventional thermal desorption devices, heating and gas supply devices, and tail gas treatment devices, the waste heat of tail gas can be reused, the difficulty of post-treatment of tail gas can be reduced, and the cost of repair process can be reduced. Effect.

[0047] See attached figure 1 , the embodiment of the present application provides a thermal desorption remediation system for contaminated soil that reuses waste heat, including: a thermal desorption device...

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Abstract

The invention relates to a thermal desorption restoration system for polluted soil with waste heat reuse, comprising: a thermal desorption device, a heat supply device, an exhaust gas treatment device and a surface heat exchange device. device, heat supply device and exhaust gas treatment device. The thermal desorption repair system uses the surface heat exchange device to preheat the combustion air at normal temperature with the high-temperature tail gas generated during the repair process, realizing the reuse of waste heat from the tail gas; the initial cooling of the tail gas is carried out in the form of waste heat exchange , reduces the burden of secondary cooling, and reduces the input cost of secondary cooling equipment; the soil thermal desorption repair system of the present invention has reasonable structure, simple operation, convenient use, no secondary pollution, and realizes the reuse of waste heat from exhaust gas, and has the advantages of Broad application prospects and practical value.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a thermal desorption repair system for polluted soil with waste heat reuse. Background technique [0002] Thermal desorption technology has the advantages of short remediation period, fast remediation speed, and good adaptability to the type and concentration of VOCs. It is widely used in the remediation of organic contaminated soil. During the restoration process, the soil needs to be heated at a higher temperature. After heating, a large amount of high-temperature exhaust gas will be generated. The high-temperature exhaust gas will cause heat loss and difficulty in exhaust gas treatment. Therefore, researchers and technology developers are working hard to improve the restoration methods and Improve system design to address heat loss and reuse of waste heat during remediation. [0003] The repair system in the prior art lacks components for exhaust waste heat ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09C1/06
Inventor 赵颖薛强李振泽王平李江山张亭亭
Owner INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
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