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Phase-change heat transfer soil thermal remediation system

A restoration system, soil heat technology, applied in the restoration of contaminated soil, waste heat treatment, lighting and heating equipment, etc., can solve the problems of flue gas heat not being further utilized, organic pollutants wasting resources, reducing system thermal efficiency, etc., to achieve Reduce the burden on the dust removal system, increase the soil treatment rate, and improve the effect of heat transfer efficiency

Inactive Publication Date: 2020-04-28
TIANJIN UNIV
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  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a phase change heat transfer soil heat restoration system, which is used to solve the problem of complex combustion, the waste of resources due to the unutilized organic pollutants separated, and the difficulty of burning substances, and the heat of flue gas is not further improved. Utilization, the problem of reducing the thermal efficiency of the system

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Embodiment Construction

[0030] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0031] The embodiment of the present invention provides a phase-change heat transfer soil thermal restoration system, which uses a phase-change heat transfer method to heat the soil, which improves the heat exchange efficiency; the soil after thermal desorption first enters the settling furnace for primary dust removal, reducing The operation burden of the cyclone dust collector is reduced, and the dust removal effect is improved; the present invention is provided with a hollow serpentine tube in the settling furnace, and seawater is passed into the serpentine tube, and the landed soil exchanges heat with the serpentine tube, which plays a role in cooling the soil. At the same time, the concentrated seawater is sent to the salt factory as raw material.

[0032] see figure 1 , this embodime...

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Abstract

The invention discloses a phase-change heat transfer soil thermal remediation system. The system comprises a thermal desorption system, a dust removal device, a combustible combustion device, a soil discharge device, a waste heat recovery device and a waste gas treatment device, the thermal desorption system is communicated with the dust removal device; the dust removal device is communicated withthe soil discharge device and the combustible combustion device; the combustible combustion device is communicated with the thermal desorption system; the thermal desorption system is connected to the waste heat recovery device, and the waste heat recovery device is connected to the exhaust gas treatment device and the combustible combustion device, the system is used for solving the problems that combustion is complex, separated organic pollutants are not utilized, resources are wasted, substances are difficult to combust, flue gas heat is not further utilized, and the heat efficiency of thesystem is reduced.

Description

technical field [0001] The invention relates to the fields of environment and energy, in particular to a phase change heat transfer soil heat restoration system. Background technique [0002] Thermal desorption is also called thermal desorption. As a non-combustion technology, it is one of the effective technologies for remediating volatile / semi-volatile organic polluted soil. Due to its wide range of treatment and remediation in different places, thermal desorption technology has been It has been successfully used in the remediation of soil contaminated by chlorine-containing organic pollutants, polycyclic aromatic hydrogen, organic pesticides, and herbicides. [0003] Tsinghua University invented a drum-type reverse direct heating equipment (ZL201010598161.7), which uses hot flue gas to directly contact the soil for heating, which improves thermal efficiency, but due to the mixing of flue gas and soil, the burden of tail gas treatment increases; a pollution Soil thermal d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06B04C9/00F27B7/02F27B7/20F27D17/00
CPCB04C9/00B09C1/06F27B7/02F27B7/20F27D17/004
Inventor 何理王治亚姜春芳赵文仪王静遥焦蒙蒙颜鹏东
Owner TIANJIN UNIV
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