Thermal desorption device for soil restoration and method thereof

A soil remediation and thermal desorption technology, applied in the restoration of polluted soil, etc., can solve problems such as secondary pollution, achieve stable and uniform heating, convenient temperature control, and reduce dioxin generation.

Active Publication Date: 2018-11-06
广东禹航环境科技有限公司
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  • Abstract
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Problems solved by technology

[0002] Existing soil thermal desorption often directly uses flames to heat the soil source in the soil thermal desorption chamber at a high temperature, which is likely to cause additional oxidation and decomposition in the soil source due to excessive temperature. and other chemical reactions, causing secondary pollution

Method used

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  • Thermal desorption device for soil restoration and method thereof
  • Thermal desorption device for soil restoration and method thereof
  • Thermal desorption device for soil restoration and method thereof

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] as attached Figures 1 to 11 Shown is a thermal desorption device for soil remediation, including a thermal oil heating furnace unit 22 and a thermal desorption unit 47;

[0046] The heat-absorbing spiral tube 28 is arranged inside the thermal oil heating furnace unit 22; the heat-releasing spiral tube 62 is arranged inside the heat desorption unit 47; the hot oil outlet end of the heat-absorbing spiral tube 28 passes through the The oil pipe 23 is in communication with the hot oil inlet end of the heat releasing spiral tube 62; Communication connection; the second oil guide pipe 24 is provided with a circulation pump 50 .

[0047] The thermal desorption unit 47 has a cylindrical airtight container structure, the inner cavity of the thermal desorption unit 47 is a soil thermal desorption cavity 60, and the lower end of the soil thermal desorption cavity 60 is ...

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Abstract

The invention discloses a thermal desorption device for soil restoration. The thermal desorption device comprises a hot oil heating furnace unit and a thermal desorption unit. A heat absorption spiralpipe is arranged in the hot oil heating furnace unit. A heat release spiral pipe is arranged in the thermal desorption unit. The hot oil outlet end of the heat absorption spiral pipe is connected with the hot oil inlet end of the heat release spiral pipe through a first oil guide pipe in a communicating mode. The cold oil outlet end of the heat release spiral pipe is connected with the oil inletend of the heat absorption spiral pipe through a second oil guide pipe in a communicating mode. A circulation pump is arranged on the second oil guide pipe. The thermal desorption device is simple instructure, combustion in a furnace cavity is even, meanwhile, the heat release spiral pipe is adopted for heating a soil source stably and evenly, temperature control is convenient, and the mode thatflames are directly adopted for intense high-temperature heating on the soil source in the soil thermal desorption cavity is avoided.

Description

technical field [0001] The invention belongs to the field of soil purification, in particular to a thermal desorption device and method for soil restoration. Background technique [0002] Existing soil thermal desorption often directly uses flames to heat the soil source in the soil thermal desorption chamber at a high temperature, which is likely to cause additional oxidation and decomposition in the soil source due to excessive temperature. And other chemical reactions, causing secondary pollution. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a thermal desorption device for soil remediation and a method thereof that heats uniformly and does not cause secondary pollution. [0004] Technical solution: In order to achieve the above purpose, a thermal desorption device for soil remediation of the present invention includes a thermal oil heating furnace unit and a thermal d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/06
CPCB09C1/06
Inventor 张兰英
Owner 广东禹航环境科技有限公司
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