A kind of soil remediation thermal desorption equipment and its process

Abstract

The invention relates to the field of soil remediation equipment, and discloses a soil remediation thermal desorption equipment, which includes a base, a bracket is fixedly installed on the top of the base, and an inclined outer heat insulation cylinder is fixedly installed on the top of the bracket. The top of the base is provided with a burner located on one side of the outer heat insulation cylinder, and the inner heat transfer cylinder is fixedly fitted inside the outer heat insulation cylinder, and the inner heat transfer cylinder is made of heat transfer material. The thermal desorption equipment for soil remediation and its process, through the fixed way of the outer heat insulation cylinder and the inner heat insulation cylinder, cooperate with the design of six heating chambers that rotate internally, and use the six heating chambers to be independent of each other and opposite to the inner heat insulation cylinder The rotation can effectively heat the organic matter in the soil to the boiling point, facilitate the separation of the organic matter in the soil, and make the soil in each heating chamber fully contact the inner heat transfer cylinder and heat transfer plate, so as to obtain sufficient and uniform heating. Improve the thermal desorption efficiency of soil.

Description

technical field [0001] The invention relates to the field of soil remediation equipment, in particular to a soil remediation thermal desorption equipment and a process thereof. Background technique [0002] Thermal desorption is a non-combustion technology, which is commonly used in soil remediation. It heats the organic pollutants in the soil to the boiling point through heat exchange, so that the organic pollutants can be volatilized and separated from the soil, and the gas is treated to achieve Harmless soil remediation, the non-combustion method avoids secondary damage to the soil. Among them, thermal desorption equipment is a necessary equipment in the thermal desorption process of soil remediation. The existing thermal desorption equipment is usually thermal desorption The drum, the high-temperature smoke generated by the combustion of the burner enters the rotating drum and heats the soil in the drum to volatilize and separate the organic pollutants in the soil. [0...

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Problems solved by technology

[0003] However, when the existing thermal desorption drum equipment is working, the soil to be thermally desorbed is easy to adhere to and accumulate on the inner wall of the thermal desorption drum during the heating process due to humidity, which affects the subsequent soil thermal desorption. The repair efficiency of the thermal desorption drum is high, and the bearing supported by the thermal desorption drum is easy to accelerate its damage speed in a high-temperature environment, causing the thermal desorption drum to stop working due to the inability to rotate normally, which affects the specific desorption efficiency of the soil.

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